diff --git a/docs/manifest.json b/docs/manifest.json
index c6eccbce1d73d3..fbaa1039cf678d 100644
--- a/docs/manifest.json
+++ b/docs/manifest.json
@@ -635,6 +635,12 @@
 		"markdown_source": "https://raw.githubusercontent.com/WordPress/gutenberg/master/packages/deprecated/README.md",
 		"parent": "packages"
 	},
+	{
+		"title": "@wordpress/docgen",
+		"slug": "packages-docgen",
+		"markdown_source": "https://raw.githubusercontent.com/WordPress/gutenberg/master/packages/docgen/README.md",
+		"parent": "packages"
+	},
 	{
 		"title": "@wordpress/dom-ready",
 		"slug": "packages-dom-ready",
diff --git a/package-lock.json b/package-lock.json
index 1b825c2ffbb3a4..2f0d39cd7a38c8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2701,6 +2701,17 @@
 				"@wordpress/hooks": "file:packages/hooks"
 			}
 		},
+		"@wordpress/docgen": {
+			"version": "file:packages/docgen",
+			"dev": true,
+			"requires": {
+				"mdast-util-inject": "1.1.0",
+				"optionator": "0.8.2",
+				"remark": "10.0.1",
+				"remark-parse": "6.0.3",
+				"unified": "7.1.0"
+			}
+		},
 		"@wordpress/dom": {
 			"version": "file:packages/dom",
 			"requires": {
@@ -13865,6 +13876,21 @@
 				"unist-util-visit": "^1.1.0"
 			}
 		},
+		"mdast-util-inject": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/mdast-util-inject/-/mdast-util-inject-1.1.0.tgz",
+			"integrity": "sha1-2wa4tYW+lZotzS+H9HK6m3VvNnU=",
+			"dev": true,
+			"requires": {
+				"mdast-util-to-string": "^1.0.0"
+			}
+		},
+		"mdast-util-to-string": {
+			"version": "1.0.5",
+			"resolved": "https://registry.npmjs.org/mdast-util-to-string/-/mdast-util-to-string-1.0.5.tgz",
+			"integrity": "sha512-2qLt/DEOo5F6nc2VFScQiHPzQ0XXcabquRJxKMhKte8nt42o08HUxNDPk7tt0YPxnWjAT11I1SYi0X0iPnfI5A==",
+			"dev": true
+		},
 		"mdn-data": {
 			"version": "1.1.4",
 			"resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-1.1.4.tgz",
diff --git a/package.json b/package.json
index eb1b308d87f2a1..b0965325aa435e 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,7 @@
 		"@wordpress/babel-preset-default": "file:packages/babel-preset-default",
 		"@wordpress/browserslist-config": "file:packages/browserslist-config",
 		"@wordpress/custom-templated-path-webpack-plugin": "file:packages/custom-templated-path-webpack-plugin",
+		"@wordpress/docgen": "file:packages/docgen",
 		"@wordpress/e2e-test-utils": "file:packages/e2e-test-utils",
 		"@wordpress/e2e-tests": "file:packages/e2e-tests",
 		"@wordpress/eslint-plugin": "file:packages/eslint-plugin",
@@ -161,6 +162,7 @@
 		"dev": "npm run build:packages && concurrently \"wp-scripts start\" \"npm run dev:packages\"",
 		"dev:packages": "node ./bin/packages/watch.js",
 		"docs:build": "node docs/tool",
+		"docs:generate": "lerna run docs:generate",
 		"fixtures:clean": "rimraf \"packages/e2e-tests/fixtures/blocks/*.+(json|serialized.html)\"",
 		"fixtures:server-registered": "docker-compose run -w /var/www/html/wp-content/plugins/gutenberg --rm wordpress ./bin/get-server-blocks.php > test/integration/full-content/server-registered.json",
 		"fixtures:generate": "npm run fixtures:server-registered && cross-env GENERATE_MISSING_FIXTURES=y npm run test-unit",
diff --git a/packages/docgen/.npmrc b/packages/docgen/.npmrc
new file mode 100644
index 00000000000000..43c97e719a5a82
--- /dev/null
+++ b/packages/docgen/.npmrc
@@ -0,0 +1 @@
+package-lock=false
diff --git a/packages/docgen/CHANGELOG.md b/packages/docgen/CHANGELOG.md
new file mode 100644
index 00000000000000..ae69187866b19e
--- /dev/null
+++ b/packages/docgen/CHANGELOG.md
@@ -0,0 +1,3 @@
+## 1.0.0 (Unreleased)
+
+- Initial release
diff --git a/packages/docgen/README.md b/packages/docgen/README.md
new file mode 100644
index 00000000000000..c62b96fc4e44b4
--- /dev/null
+++ b/packages/docgen/README.md
@@ -0,0 +1,250 @@
+# `docgen`
+
+`docgen` helps you to generate the _public API_ of your code. Given an entry point file, it outputs the ES6 export statements and their corresponding JSDoc comments in human-readable format.
+
+Some characteristics:
+
+* If the export statement doesn't contain any JSDoc, it'll look up for JSDoc up to the declaration.
+* It can resolve relative dependencies, either files or directories. For example, `import default from './dependency'` will find `dependency.js` or `dependency/index.js`
+
+## Installation
+
+Install the module
+
+```bash
+npm install @wordpress/docgen --save-dev
+```
+
+## Usage
+
+```bash
+npx docgen <entry-point.js>
+```
+
+This command will generate a file named `entry-point-api.md` containing all the exports and their JSDoc comments.
+
+### CLI options
+
+* **--formatter** `(String)`: A path to a custom formatter to control the contents of the output file. It should be a CommonJS module that exports a function that takes as input:
+  * *rootDir* `(String)`: current working directory as seen by docgen.
+  * *docPath* `(String)`: path of the output document to generate.
+  * *symbols* `(Array)`: the symbols found.
+* **--ignore** `(RegExp)`: A regular expression used to ignore symbols whose name match it.
+* **--output** `(String)`: Output file that will contain the API documentation.
+* **--to-section** `(String)`: Append generated documentation to this section in the Markdown output. To be used by the default Markdown formatter. Depends on `--output` and bypasses the custom `--formatter` passed, if any.
+* **--to-token**: Embed generated documentation within the start and end tokens in the Markdown output. To be used by the default Markdown formatter.Depends on `--output` and bypasses the custom `--formatter` passed, if any.
+  * Start token: `<!-- START TOKEN(Autogenerated API docs) -->`
+  * End token: `<!-- END TOKEN(Autogenerated API docs) -->`
+* **--use-token** `(String)`: This options allows you to customize the string between the tokens. For example, `--use-token my-api` will look up for the start token `<!-- START TOKEN(my-api) -->` and the end token `<!-- END TOKEN(my-api) -->`. Depends on `--to-token`.
+* **--debug**: Run in debug mode, which outputs some intermediate files useful for debugging.
+
+## Examples
+
+### Default export
+
+Entry point `index.js`:
+
+```js
+/**
+ * Adds two numbers.
+ *
+ * @param {number} term1 First number.
+ * @param {number} term2 Second number.
+ * @return {number} The result of adding the two numbers.
+ */
+export default function addition( term1, term2 ) {
+	// Implementation would go here.
+}
+```
+
+Output of `npx docgen index.js` would be `index-api.js`:
+
+```markdown
+# API
+
+## default
+
+[example.js#L8-L10](example.js#L8-L10)
+
+Adds two numbers.
+
+**Parameters**
+
+- **term1** `number`: First number.
+- **term2** `number`: Second number.
+
+**Returns**
+
+`number` The result of adding the two numbers.
+```
+
+### Named export
+
+Entry point `index.js`:
+
+```js
+/**
+ * Adds two numbers.
+ *
+ * @param {number} term1 First number.
+ * @param {number} term2 Second number.
+ * @return {number} The result of adding the two numbers.
+ */
+function addition( term1, term2 ) {
+	return term1 + term2;
+}
+
+/**
+ * Adds two numbers.
+ *
+ * @deprecated Use `addition` instead.
+ *
+ * @param {number} term1 First number.
+ * @param {number} term2 Second number.
+ * @return {number} The result of adding the two numbers.
+ */
+function count( term1, term2 ) {
+	return term1 + term2;
+}
+
+export { count, addition };
+```
+
+Output of `npx docgen index.js` would be `index-api.js`:
+
+```markdown
+# API
+
+## addition
+
+[example.js#L25-L25](example.js#L25-L25)
+
+Adds two numbers.
+
+**Parameters**
+
+- **term1** `number`: First number.
+- **term2** `number`: Second number.
+
+**Returns**
+
+`number` The result of adding the two numbers.
+
+## count
+
+[example.js#L25-L25](example.js#L25-L25)
+
+> **Deprecated** Use `addition` instead.
+
+Adds two numbers.
+
+**Parameters**
+
+- **term1** `number`: First number.
+- **term2** `number`: Second number.
+
+**Returns**
+
+`number` The result of adding the two numbers.
+```
+
+### Namespace export
+
+Let the entry point be `index.js`:
+
+```js
+export * from './count';
+```
+
+with `./count/index.js` contents being:
+
+```js
+/**
+ * Substracts two numbers.
+ *
+ * @example
+ *
+ * ```js
+ * const result = substraction( 5, 2 );
+ * console.log( result ); // Will log 3
+ * ```
+ *
+ * @param {number} term1 First number.
+ * @param {number} term2 Second number.
+ * @return {number} The result of subtracting the two numbers.
+ */
+export function substraction( term1, term2 ) {
+	return term1 - term2;
+}
+
+/**
+ * Adds two numbers.
+ *
+  * @example
+ *
+ * ```js
+ * const result = addition( 5, 2 );
+ * console.log( result ); // Will log 7
+ * ```
+ *
+ * @param {number} term1 First number.
+ * @param {number} term2 Second number.
+ * @return {number} The result of adding the two numbers.
+ */
+export function addition( term1, term2 ) {
+	// Implementation would go here.
+	return term1 - term2;
+}
+```
+
+Output of `npx docgen index.js` would be `index-api.js`:
+
+````markdown
+# API
+
+## addition
+
+[example-module.js#L1-L1](example-module.js#L1-L1)
+
+Adds two numbers.
+
+**Usage**
+
+```js
+const result = addition( 5, 2 );
+console.log( result ); // Will log 7
+```
+
+**Parameters**
+
+- **term1** `number`: First number.
+- **term2** `number`: Second number.
+
+**Returns**
+
+`number` The result of adding the two numbers.
+
+## substraction
+
+[example-module.js#L1-L1](example-module.js#L1-L1)
+
+Substracts two numbers.
+
+**Usage**
+
+```js
+const result = substraction( 5, 2 );
+console.log( result ); // Will log 3
+```
+
+**Parameters**
+
+- **term1** `number`: First number.
+- **term2** `number`: Second number.
+
+**Returns**
+
+`number` The result of subtracting the two numbers.
+````
+
+<br/><br/><p align="center"><img src="https://s.w.org/style/images/codeispoetry.png?1" alt="Code is Poetry." /></p>
diff --git a/packages/docgen/bin/cli.js b/packages/docgen/bin/cli.js
new file mode 100755
index 00000000000000..bcc1a6f1e245d0
--- /dev/null
+++ b/packages/docgen/bin/cli.js
@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+const docgen = require( '../src' );
+
+const optionator = require( 'optionator' )( {
+	prepend: 'Usage: node <path-to-docgen> <relative-path-to-entry-point>',
+	options: [ {
+		option: 'formatter',
+		type: 'String',
+		description: 'A custom function to format the generated documentation. By default, a Markdown formatter will be used.',
+	}, {
+		option: 'output',
+		type: 'String',
+		description: 'Output file to contain the API documentation.',
+	}, {
+		option: 'ignore',
+		type: 'RegExp',
+		description: 'A regular expression used to ignore symbols whose name match it.',
+	}, {
+		option: 'to-section',
+		type: 'String',
+		description: 'Append generated documentation to this section in the Markdown output. To be used by the default Markdown formatter.',
+		dependsOn: 'output',
+	}, {
+		option: 'to-token',
+		type: 'Boolean',
+		description: 'Embed generated documentation within this token in the Markdown output. To be used by the default Markdown formatter.',
+		dependsOn: 'output',
+	}, {
+		option: 'use-token',
+		type: 'String',
+		default: 'Autogenerated API docs',
+		description: 'Add this string to the start/end tokens.',
+		dependsOn: 'to-token',
+	}, {
+		option: 'debug',
+		type: 'Boolean',
+		default: false,
+		description: 'Run in debug mode, which outputs some intermediate files useful for debugging.',
+	} ],
+} );
+
+const options = optionator.parseArgv( process.argv );
+docgen( options._[ 0 ], options );
diff --git a/packages/docgen/coverage.md b/packages/docgen/coverage.md
new file mode 100644
index 00000000000000..83c5dfd3d59fa6
--- /dev/null
+++ b/packages/docgen/coverage.md
@@ -0,0 +1,83 @@
+# Coverage
+
+## Packages outside of scope
+
+- babel-plugin-makepot. CommonJS module. Babel plugin.
+- babel-preset-default. CommonJS module. Babel preset.
+- browserslist-config. CommonJS module. Config.
+- custom-templated-path-webpack-plugin. CommonJS module. Webpack plugin.
+- docgen. CommonJS module.
+- e2e-tests. Do not export anything.
+- eslint-plugin. CommonJS module. ESLint plugin.
+- is-shallow-equal. CommonJS module.
+- jest-preset-default. CommonJS module. Jest preset.
+- library-export-default-webpack-plugin. CommonJS. Webpack plugin.
+- npm-package-json-lint-config. CommonJS. Config.
+- postcss-themes. CommonJS module.
+- scripts. CommonJS module.
+
+## TODO
+
+These either happen in private API, aren't relevant, or are pending of decission.
+
+- [ ] go undocummented: `unstable__*`, rich-text `unstableToDom`, `experimental__`
+- [ ] `constants` keycodes, rich-text `LINE_SEPARATOR`
+- [ ] `{?{ time: number, count: number }}`packages/editor/src/store/selectors.js
+- [ ] `{type=}` packages/block-library/src/image/edit.js
+- [ ] `@api` packages/editor/src/editor-styles/ast/stringify/compiler.js
+- [ ] `@callback` packages/components/src/autocomplete/index.js
+- [ ] `@cite` packages/block-serialization-default-parser/src/index.js
+- [ ] `@class` packages/edit-post/src/hooks/components/media-upload/index.js
+- [ ] `@const` packages/editor/src/editor-styles/transforms/wrap.js
+- [ ] `@constant` packages/editor/src/hooks/align.js
+- [ ] `@constructor` packages/edit-post/src/hooks/components/media-upload/index.js
+- [ ] `@inheritdoc` packages/edit-post/src/components/meta-boxes/meta-boxes-area/index.js
+- [ ] `@private` packages/editor/src/components/rich-text/index.js
+- [ ] `@property` babel-plugin-import-jsx-pragma
+- [ ] `@since` packages/block-serialization-default-parser/src/index.js
+- [ ] `@throws` packages/blocks/src/api/node.js
+- [ ] `@typedef` packages/blocks/src/api/registration.js
+
+## DONE
+
+- [x] a11y
+- [x] annotations
+- [x] api-fetch
+- [x] babel-plugin-import-jsx-pragma
+- [x] blob
+- [x] block-library
+- [x] block-serialization-default-parser
+- [x] block-serialization-spec-parser
+- [x] blocks
+- [x] components
+- [x] compose
+- [x] core-data
+- [x] data
+- [x] date
+- [x] deprecated
+- [x] dom
+- [x] dom-ready
+- [x] e2e-test-utils
+- [x] edit-post
+- [x] editor
+- [x] element
+- [x] escape-html
+- [x] format-library
+- [x] hooks
+- [x] html-entities
+- [x] i18n
+- [x] jest-console
+- [x] jest-puppeteer-axe
+- [x] keycodes
+- [x] list-reusable-blocks
+- [x] notices
+- [x] nux
+- [x] plugins
+- [x] priority-queue
+- [x] redux-routine
+- [x] rich-text
+- [x] shortcode
+- [x] token-list
+- [x] url
+- [x] viewport
+- [x] wordcount
diff --git a/packages/docgen/package.json b/packages/docgen/package.json
new file mode 100644
index 00000000000000..a73ed098f3142b
--- /dev/null
+++ b/packages/docgen/package.json
@@ -0,0 +1,33 @@
+{
+	"name": "@wordpress/docgen",
+	"version": "1.0.0-beta.0",
+	"description": "Autogenerate public API documentation from exports and JSDoc comments.",
+	"author": "The WordPress Contributors",
+	"license": "GPL-2.0-or-later",
+	"keywords": [
+		"jsdoc",
+		"documentation",
+		"wordpress"
+	],
+	"homepage": "https://github.com/WordPress/gutenberg/tree/master/packages/docgen/README.md",
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/WordPress/gutenberg.git"
+	},
+	"bugs": {
+		"url": "https://github.com/WordPress/gutenberg/issues"
+	},
+	"bin": {
+		"docgen": "./bin/cli.js"
+	},
+	"dependencies": {
+		"mdast-util-inject": "1.1.0",
+		"optionator": "0.8.2",
+		"remark": "10.0.1",
+		"remark-parse": "6.0.3",
+		"unified": "7.1.0"
+	},
+	"publishConfig": {
+		"access": "public"
+	}
+}
diff --git a/packages/docgen/src/engine.js b/packages/docgen/src/engine.js
new file mode 100644
index 00000000000000..0c01f94ef9b505
--- /dev/null
+++ b/packages/docgen/src/engine.js
@@ -0,0 +1,56 @@
+/**
+* External dependencies.
+*/
+const espree = require( 'espree' );
+const { flatten } = require( 'lodash' );
+
+/**
+* Internal dependencies.
+*/
+const getIntermediateRepresentation = require( './get-intermediate-representation' );
+
+const getAST = ( source ) => espree.parse( source, {
+	attachComment: true,
+	loc: true,
+	ecmaVersion: 2018,
+	ecmaFeatures: {
+		jsx: true,
+	},
+	sourceType: 'module',
+} );
+
+const getExportTokens = ( ast ) => ast.body.filter(
+	( node ) => [
+		'ExportNamedDeclaration',
+		'ExportDefaultDeclaration',
+		'ExportAllDeclaration',
+	].some( ( declaration ) => declaration === node.type )
+);
+
+const engine = ( path, code, getIRFromPath = () => {} ) => {
+	const result = {};
+	result.ast = getAST( code );
+	result.tokens = getExportTokens( result.ast );
+	result.ir = flatten( result.tokens.map(
+		( token ) => getIntermediateRepresentation(
+			path,
+			token,
+			result.ast,
+			getIRFromPath
+		)
+	) );
+
+	return result;
+};
+
+/**
+ * Function that takes code and returns an intermediate representation.
+ *
+ * @param {string} code The code to parse.
+ * @param {Function} [getIRFromPath=noop] Callback to retrieve the
+ * Intermediate Representation from a path relative to the file
+ * being parsed.
+ *
+ * @return {Object} Intermediate Representation in JSON.
+ */
+module.exports = engine;
diff --git a/packages/docgen/src/get-dependency-path.js b/packages/docgen/src/get-dependency-path.js
new file mode 100644
index 00000000000000..83c043023ed441
--- /dev/null
+++ b/packages/docgen/src/get-dependency-path.js
@@ -0,0 +1,3 @@
+module.exports = function( token ) {
+	return token.source.value;
+};
diff --git a/packages/docgen/src/get-export-entries.js b/packages/docgen/src/get-export-entries.js
new file mode 100644
index 00000000000000..a69811b2b6545d
--- /dev/null
+++ b/packages/docgen/src/get-export-entries.js
@@ -0,0 +1,97 @@
+/**
+ * External dependencies
+ */
+const { get } = require( 'lodash' );
+
+/**
+ * Returns the export entry records of the given export statement.
+ * Unlike [the standard](http://www.ecma-international.org/ecma-262/9.0/#exportentry-record),
+ * the `importName` and the `localName` are merged together.
+ *
+ * @param {Object} token Espree node representing an export.
+ *
+ * @return {Array} Exported entry records. Example:
+ * [ {
+ *    localName: 'localName',
+ *    exportName: 'exportedName',
+ *    module: null,
+ *    lineStart: 2,
+ *    lineEnd: 3,
+ * } ]
+ */
+module.exports = function( token ) {
+	if ( token.type === 'ExportDefaultDeclaration' ) {
+		const getLocalName = ( t ) => {
+			let name;
+			switch ( t.declaration.type ) {
+				case 'Identifier':
+					name = t.declaration.name;
+					break;
+				case 'AssignmentExpression':
+					name = t.declaration.left.name;
+					break;
+				//case 'FunctionDeclaration'
+				//case 'ClassDeclaration'
+				default:
+					name = get( t.declaration, [ 'id', 'name' ], '*default*' );
+			}
+			return name;
+		};
+		return [ {
+			localName: getLocalName( token ),
+			exportName: 'default',
+			module: null,
+			lineStart: token.loc.start.line,
+			lineEnd: token.loc.end.line,
+		} ];
+	}
+
+	if ( token.type === 'ExportAllDeclaration' ) {
+		return [ {
+			localName: '*',
+			exportName: null,
+			module: token.source.value,
+			lineStart: token.loc.start.line,
+			lineEnd: token.loc.end.line,
+		} ];
+	}
+
+	const name = [];
+	if ( token.declaration === null ) {
+		token.specifiers.forEach( ( specifier ) => name.push( {
+			localName: specifier.local.name,
+			exportName: specifier.exported.name,
+			module: get( token.source, [ 'value' ], null ),
+			lineStart: specifier.loc.start.line,
+			lineEnd: specifier.loc.end.line,
+		} ) );
+		return name;
+	}
+
+	switch ( token.declaration.type ) {
+		case 'ClassDeclaration':
+		case 'FunctionDeclaration':
+			name.push( {
+				localName: token.declaration.id.name,
+				exportName: token.declaration.id.name,
+				module: null,
+				lineStart: token.declaration.loc.start.line,
+				lineEnd: token.declaration.loc.end.line,
+			} );
+			break;
+
+		case 'VariableDeclaration':
+			token.declaration.declarations.forEach( ( declaration ) => {
+				name.push( {
+					localName: declaration.id.name,
+					exportName: declaration.id.name,
+					module: null,
+					lineStart: token.declaration.loc.start.line,
+					lineEnd: token.declaration.loc.end.line,
+				} );
+			} );
+			break;
+	}
+
+	return name;
+};
diff --git a/packages/docgen/src/get-intermediate-representation.js b/packages/docgen/src/get-intermediate-representation.js
new file mode 100644
index 00000000000000..eee7775d69979a
--- /dev/null
+++ b/packages/docgen/src/get-intermediate-representation.js
@@ -0,0 +1,152 @@
+/**
+ * External dependencies.
+ */
+const { get } = require( 'lodash' );
+
+/**
+ * Internal dependencies.
+ */
+const getExportEntries = require( './get-export-entries' );
+const getJSDocFromToken = require( './get-jsdoc-from-token' );
+const getDependencyPath = require( './get-dependency-path' );
+
+const UNDOCUMENTED = 'Undocumented declaration.';
+const NAMESPACE_EXPORT = '*';
+const DEFAULT_EXPORT = 'default';
+
+const hasClassWithName = ( node, name ) =>
+	node.type === 'ClassDeclaration' &&
+	node.id.name === name;
+
+const hasFunctionWithName = ( node, name ) =>
+	node.type === 'FunctionDeclaration' &&
+	node.id.name === name;
+
+const hasVariableWithName = ( node, name ) =>
+	node.type === 'VariableDeclaration' &&
+	node.declarations.some( ( declaration ) => {
+		if ( declaration.id.type === 'ObjectPattern' ) {
+			return declaration.id.properties.some(
+				( property ) => property.key.name === name
+			);
+		}
+		return declaration.id.name === name;
+	} );
+
+const hasNamedExportWithName = ( node, name ) =>
+	node.type === 'ExportNamedDeclaration' && (
+		( node.declaration && hasClassWithName( node.declaration, name ) ) ||
+		( node.declaration && hasFunctionWithName( node.declaration, name ) ) ||
+		( node.declaration && hasVariableWithName( node.declaration, name ) )
+	);
+
+const hasImportWithName = ( node, name ) =>
+	node.type === 'ImportDeclaration' &&
+	node.specifiers.some( ( specifier ) => specifier.local.name === name );
+
+const isImportDeclaration = ( node ) => node.type === 'ImportDeclaration';
+
+const someImportMatchesName = ( name, token ) => {
+	let matches = false;
+	token.specifiers.forEach( ( specifier ) => {
+		if ( ( specifier.type === 'ImportDefaultSpecifier' ) && ( name === 'default' ) ) {
+			matches = true;
+		}
+		if ( ( specifier.type === 'ImportSpecifier' ) && ( name === specifier.imported.name ) ) {
+			matches = true;
+		}
+	} );
+	return matches;
+};
+
+const someEntryMatchesName = ( name, entry, token ) =>
+	( token.type === 'ExportNamedDeclaration' && entry.localName === name ) ||
+	( token.type === 'ImportDeclaration' && someImportMatchesName( name, token ) );
+
+const getJSDocFromDependency = ( token, entry, parseDependency ) => {
+	let doc;
+	const ir = parseDependency( getDependencyPath( token ) );
+	if ( entry.localName === NAMESPACE_EXPORT ) {
+		doc = ir.filter( ( { name } ) => name !== DEFAULT_EXPORT );
+	} else {
+		doc = ir.find( ( { name } ) => someEntryMatchesName( name, entry, token ) );
+	}
+	return doc;
+};
+
+const getJSDoc = ( token, entry, ast, parseDependency ) => {
+	let doc;
+	if ( entry.localName !== NAMESPACE_EXPORT ) {
+		doc = getJSDocFromToken( token );
+		if ( ( doc !== undefined ) ) {
+			return doc;
+		}
+	}
+
+	if ( entry && entry.module === null ) {
+		const candidates = ast.body.filter( ( node ) => {
+			return hasClassWithName( node, entry.localName ) ||
+				hasFunctionWithName( node, entry.localName ) ||
+				hasVariableWithName( node, entry.localName ) ||
+				hasNamedExportWithName( node, entry.localName ) ||
+				hasImportWithName( node, entry.localName );
+		} );
+		if ( candidates.length !== 1 ) {
+			return doc;
+		}
+		const node = candidates[ 0 ];
+		if ( isImportDeclaration( node ) ) {
+			doc = getJSDocFromDependency( node, entry, parseDependency );
+		} else {
+			doc = getJSDocFromToken( node );
+		}
+		return doc;
+	}
+
+	return getJSDocFromDependency( token, entry, parseDependency );
+};
+
+/**
+ * Takes a export token and returns an intermediate representation in JSON.
+ *
+ * If the export token doesn't contain any JSDoc, and it's a identifier,
+ * the identifier declaration will be looked up in the file or dependency
+ * if an `ast` and `parseDependency` callback are provided.
+ *
+ * @param {string} path Path to file being processed.
+ * @param {Object} token Espree export token.
+ * @param {Object} [ast] Espree ast of the file being parsed.
+ * @param {Function} [parseDependency] Function that takes a path
+ * and returns the intermediate representation of the dependency file.
+ *
+ * @return {Object} Intermediate Representation in JSON.
+ */
+module.exports = function( path, token, ast = { body: [] }, parseDependency = () => {} ) {
+	const exportEntries = getExportEntries( token );
+	const ir = [];
+	exportEntries.forEach( ( entry ) => {
+		const doc = getJSDoc( token, entry, ast, parseDependency );
+		if ( entry.localName === NAMESPACE_EXPORT ) {
+			doc.forEach( ( namedExport ) => {
+				ir.push( {
+					path,
+					name: namedExport.name,
+					description: namedExport.description,
+					tags: namedExport.tags,
+					lineStart: entry.lineStart,
+					lineEnd: entry.lineEnd,
+				} );
+			} );
+		} else {
+			ir.push( {
+				path,
+				name: entry.exportName,
+				description: get( doc, [ 'description' ], UNDOCUMENTED ),
+				tags: get( doc, [ 'tags' ], [] ),
+				lineStart: entry.lineStart,
+				lineEnd: entry.lineEnd,
+			} );
+		}
+	} );
+	return ir;
+};
diff --git a/packages/docgen/src/get-jsdoc-from-token.js b/packages/docgen/src/get-jsdoc-from-token.js
new file mode 100644
index 00000000000000..e888abc53d06ca
--- /dev/null
+++ b/packages/docgen/src/get-jsdoc-from-token.js
@@ -0,0 +1,37 @@
+/**
+ * External dependencies.
+ */
+const doctrine = require( 'doctrine' );
+
+/**
+ * Internal dependencies.
+ */
+const getLeadingComments = require( './get-leading-comments' );
+const getTypeAsString = require( './get-type-as-string' );
+
+/**
+ * Function that takes an Espree token and returns
+ * a object representing the leading JSDoc comment of the token,
+ * if any.
+ *
+ * @param {Object} token Espree token.
+ * @return {Object} Object representing the JSDoc comment.
+ */
+module.exports = function( token ) {
+	let jsdoc;
+	const comments = getLeadingComments( token );
+	if ( comments && comments.startsWith( '*\n' ) ) {
+		jsdoc = doctrine.parse( comments, {
+			unwrap: true,
+			recoverable: true,
+			sloppy: true,
+		} );
+		jsdoc.tags = jsdoc.tags.map( ( tag ) => {
+			if ( tag.type ) {
+				tag.type = getTypeAsString( tag.type );
+			}
+			return tag;
+		} );
+	}
+	return jsdoc;
+};
diff --git a/packages/docgen/src/get-leading-comments.js b/packages/docgen/src/get-leading-comments.js
new file mode 100644
index 00000000000000..3f025278b10337
--- /dev/null
+++ b/packages/docgen/src/get-leading-comments.js
@@ -0,0 +1,20 @@
+/**
+ * External dependencies.
+ */
+const { last } = require( 'lodash' );
+
+/**
+ * Function that returns the leading comment
+ * of a Espree node.
+ *
+ * @param {Object} declaration Espree node to inspect
+ *
+ * @return {?string} Leading comment or undefined if there is none.
+ */
+module.exports = function( declaration ) {
+	let comments;
+	if ( declaration.leadingComments ) {
+		comments = last( declaration.leadingComments ).value;
+	}
+	return comments;
+};
diff --git a/packages/docgen/src/get-type-as-string.js b/packages/docgen/src/get-type-as-string.js
new file mode 100644
index 00000000000000..64bfaefd00d529
--- /dev/null
+++ b/packages/docgen/src/get-type-as-string.js
@@ -0,0 +1,44 @@
+const maybeAddDefault = function( value, defaultValue ) {
+	if ( defaultValue ) {
+		return `value=${ defaultValue }`;
+	}
+	return value;
+};
+
+const getType = function( param, defaultValue ) {
+	if ( ! defaultValue ) {
+		defaultValue = param.default;
+	}
+
+	if ( param.type.type ) {
+		return getType( param.type, defaultValue );
+	} else if ( param.expression ) {
+		if ( param.type === 'RestType' ) {
+			return `...${ getType( param.expression, defaultValue ) }`;
+		} else if ( param.type === 'NullableType' ) {
+			return `?${ getType( param.expression, defaultValue ) }`;
+		} else if ( param.type === 'TypeApplication' ) {
+			return `${ getType( param.expression, defaultValue ) }<${
+				param.applications.map( ( application ) => getType( application ) ).join( ',' )
+			}>`;
+		} else if ( param.type === 'OptionalType' ) {
+			return `[${ getType( param.expression, defaultValue ) }]`;
+		}
+		return getType( param.expression, defaultValue );
+	} else if ( param.elements ) {
+		const types = param.elements.map( ( element ) => getType( element ) );
+		return maybeAddDefault( `(${ types.join( '|' ) })`, defaultValue );
+	} else if ( param.type === 'AllLiteral' ) {
+		return maybeAddDefault( '*', defaultValue );
+	} else if ( param.type === 'NullLiteral' ) {
+		return maybeAddDefault( 'null', defaultValue );
+	} else if ( param.type === 'UndefinedLiteral' ) {
+		return maybeAddDefault( 'undefined', defaultValue );
+	}
+
+	return maybeAddDefault( param.name, defaultValue );
+};
+
+module.exports = function( param ) {
+	return getType( param );
+};
diff --git a/packages/docgen/src/index.js b/packages/docgen/src/index.js
new file mode 100644
index 00000000000000..1bc2e71a37897a
--- /dev/null
+++ b/packages/docgen/src/index.js
@@ -0,0 +1,126 @@
+/**
+ * External dependencies
+ */
+const fs = require( 'fs' );
+const path = require( 'path' );
+const { last } = require( 'lodash' );
+
+/**
+ * Internal dependencies
+ */
+const engine = require( './engine' );
+const defaultMarkdownFormatter = require( './markdown' );
+
+/**
+ * Helpers functions.
+ */
+
+const relativeToAbsolute = ( basePath, relativePath ) => {
+	const target = path.join( path.dirname( basePath ), relativePath );
+	if ( path.extname( target ) === '.js' ) {
+		return target;
+	}
+	let targetFile = target + '.js';
+	if ( fs.existsSync( targetFile ) ) {
+		return targetFile;
+	}
+	targetFile = path.join( target, 'index.js' );
+	if ( fs.existsSync( targetFile ) ) {
+		return targetFile;
+	}
+	process.stdout.write( '\nRelative path does not exists.' );
+	process.stdout.write( '\n' );
+	process.stdout.write( `\nBase: ${ basePath }` );
+	process.stdout.write( `\nRelative: ${ relativePath }` );
+	process.stdout.write( '\n\n' );
+	process.exit( 1 );
+};
+
+const getIRFromRelativePath = ( rootDir, basePath ) => ( relativePath ) => {
+	if ( ! relativePath.startsWith( '.' ) ) {
+		return [];
+	}
+	const absolutePath = relativeToAbsolute( basePath, relativePath );
+	const result = processFile( rootDir, absolutePath );
+	return result.ir || undefined;
+};
+
+const processFile = ( rootDir, inputFile ) => {
+	try {
+		const data = fs.readFileSync( inputFile, 'utf8' );
+		currentFileStack.push( inputFile );
+		const relativePath = path.relative( rootDir, inputFile );
+		const result = engine( relativePath, data, getIRFromRelativePath( rootDir, last( currentFileStack ) ) );
+		currentFileStack.pop( inputFile );
+		return result;
+	} catch ( e ) {
+		process.stdout.write( `\n${ e }` );
+		process.stdout.write( '\n\n' );
+		process.exit( 1 );
+	}
+};
+
+const runCustomFormatter = ( customFormatterFile, rootDir, doc, symbols, headingTitle ) => {
+	try {
+		const customFormatter = require( customFormatterFile );
+		const output = customFormatter( rootDir, doc, symbols, headingTitle );
+		fs.writeFileSync( doc, output );
+	} catch ( e ) {
+		process.stdout.write( `\n${ e }` );
+		process.stdout.write( '\n\n' );
+		process.exit( 1 );
+	}
+	return 'custom formatter';
+};
+
+// To keep track of file being processed.
+const currentFileStack = [];
+
+module.exports = function( sourceFile, options ) {
+	// Input: process CLI args, prepare files, etc
+	const processDir = process.cwd();
+	if ( sourceFile === undefined ) {
+		process.stdout.write( '\n' );
+		process.stdout.write( 'No source file provided' );
+		process.stdout.write( '\n\n' );
+		process.exit( 1 );
+	}
+	sourceFile = path.join( processDir, sourceFile );
+
+	const debugMode = options.debug ? true : false;
+
+	const inputBase = path.join(
+		path.dirname( sourceFile ),
+		path.basename( sourceFile, path.extname( sourceFile ) )
+	);
+	const ast = inputBase + '-ast.json';
+	const tokens = inputBase + '-exports.json';
+	const ir = inputBase + '-ir.json';
+	const doc = options.output ?
+		path.join( processDir, options.output ) :
+		inputBase + '-api.md';
+
+	// Process
+	const result = processFile( processDir, sourceFile );
+	const filteredIr = result.ir.filter( ( { name } ) => options.ignore ? ! name.match( options.ignore ) : true );
+
+	// Ouput
+	if ( result === undefined ) {
+		process.stdout.write( '\nFile was processed, but contained no ES6 module exports:' );
+		process.stdout.write( `\n${ sourceFile }` );
+		process.stdout.write( '\n\n' );
+		process.exit( 0 );
+	}
+
+	if ( options.formatter ) {
+		runCustomFormatter( path.join( processDir, options.formatter ), processDir, doc, filteredIr, 'API' );
+	} else {
+		defaultMarkdownFormatter( options, processDir, doc, filteredIr, 'API' );
+	}
+
+	if ( debugMode ) {
+		fs.writeFileSync( ir, JSON.stringify( result.ir ) );
+		fs.writeFileSync( tokens, JSON.stringify( result.tokens ) );
+		fs.writeFileSync( ast, JSON.stringify( result.ast ) );
+	}
+};
diff --git a/packages/docgen/src/markdown/embed.js b/packages/docgen/src/markdown/embed.js
new file mode 100644
index 00000000000000..9b52064c3377a4
--- /dev/null
+++ b/packages/docgen/src/markdown/embed.js
@@ -0,0 +1,51 @@
+/**
+ * External dependencies
+ */
+const { findLast } = require( 'lodash' );
+
+const getHeadingIndex = ( ast, index ) => {
+	const astBeforeIndex = ast.children.slice( 0, index );
+	const lastHeading = findLast( astBeforeIndex, ( node ) => node.type === 'heading' );
+	return lastHeading ? lastHeading.depth : 1;
+};
+
+/**
+ * Inserts new contents within the token boundaries.
+ *
+ * @param {string} token String to embed in the start/end tokens.
+ * @param {Object} targetAst The remark AST of the file where the new contents are to be embedded.
+ * @param {Object} newContentAst The new contents to be embedded in remark AST format.
+ * @return {boolean} Whether the contents were embedded or not.
+ */
+const embed = function( token, targetAst, newContentAst ) {
+	let headingIndex = -1;
+
+	const START_TOKEN = `<!-- START TOKEN(${ token }) -->`;
+	const END_TOKEN = `<!-- END TOKEN(${ token }) -->`;
+	const startIndex = targetAst.children.findIndex(
+		( node ) => node.type === 'html' && node.value === START_TOKEN
+	);
+	if ( startIndex === -1 ) {
+		return false;
+	}
+	const endIndex = targetAst.children.findIndex(
+		( node ) => node.type === 'html' && node.value === END_TOKEN
+	);
+	if ( endIndex === -1 ) {
+		return false;
+	}
+
+	if ( startIndex !== -1 && endIndex !== -1 && startIndex < endIndex ) {
+		headingIndex = getHeadingIndex( targetAst, startIndex );
+		newContentAst.children.forEach( ( node ) => {
+			if ( node.type === 'heading' ) {
+				node.depth = headingIndex + 1;
+			}
+		} );
+		targetAst.children.splice( startIndex + 1, endIndex - startIndex - 1, newContentAst );
+		return true;
+	}
+	return false;
+};
+
+module.exports = embed;
diff --git a/packages/docgen/src/markdown/formatter.js b/packages/docgen/src/markdown/formatter.js
new file mode 100644
index 00000000000000..d9e41536f2f9a0
--- /dev/null
+++ b/packages/docgen/src/markdown/formatter.js
@@ -0,0 +1,128 @@
+/**
+ * External dependencies
+ */
+const path = require( 'path' );
+
+const getTagsByName = ( tags, ...names ) => tags.filter( ( tag ) => names.some( ( name ) => name === tag.title ) );
+
+const cleanSpaces = ( paragraph ) =>
+	paragraph ?
+		paragraph.split( '\n' ).map(
+			( sentence ) => sentence.trim()
+		).reduce(
+			( acc, current ) => acc + ' ' + current,
+			''
+		).trim() :
+		'';
+
+const formatTag = ( title, tags, formatter, docs ) => {
+	if ( tags && tags.length > 0 ) {
+		docs.push( '\n' );
+		docs.push( '\n' );
+		docs.push( `**${ title }**` );
+		docs.push( '\n' );
+		docs.push( ...tags.map( formatter ) );
+	}
+};
+
+const formatExamples = ( tags, docs ) => {
+	if ( tags && tags.length > 0 ) {
+		docs.push( '\n' );
+		docs.push( '\n' );
+		docs.push( '**Usage**' );
+		docs.push( '\n' );
+		docs.push( '\n' );
+		docs.push( ...tags.map(
+			( tag ) => `${ tag.description }`
+		).join( '\n\n' ) );
+	}
+};
+
+const formatDeprecated = ( tags, docs ) => {
+	if ( tags && tags.length > 0 ) {
+		docs.push( '\n' );
+		docs.push( ...tags.map(
+			( tag ) => `\n> **Deprecated** ${ cleanSpaces( tag.description ) }`
+		) );
+	}
+};
+
+const formatDescription = ( description, docs ) => {
+	docs.push( '\n' );
+	docs.push( '\n' );
+	docs.push( description );
+};
+
+const getHeading = ( index, text ) => {
+	return '#'.repeat( index ) + ' ' + text;
+};
+
+module.exports = function( rootDir, docPath, symbols, headingTitle, headingStartIndex ) {
+	const docs = [ ];
+	let headingIndex = headingStartIndex || 1;
+	if ( headingTitle ) {
+		docs.push( getHeading( headingIndex, `${ headingTitle }` ) );
+		headingIndex++;
+	}
+	docs.push( '\n' );
+	docs.push( '\n' );
+	symbols.sort( ( first, second ) => {
+		const firstName = first.name.toUpperCase();
+		const secondName = second.name.toUpperCase();
+		if ( firstName < secondName ) {
+			return -1;
+		}
+		if ( firstName > secondName ) {
+			return 1;
+		}
+		return 0;
+	} );
+	if ( symbols && symbols.length > 0 ) {
+		symbols.forEach( ( symbol ) => {
+			const symbolPath = path.join(
+				path.relative(
+					path.dirname( docPath ),
+					path.join( rootDir, path.dirname( symbol.path ) )
+				),
+				path.basename( symbol.path ),
+			);
+			const symbolPathWithLines = `${ symbolPath }#L${ symbol.lineStart }-L${ symbol.lineEnd }`;
+			docs.push( getHeading( headingIndex, `${ symbol.name }` ) );
+			docs.push( `\n\n[${ symbolPathWithLines }](${ symbolPathWithLines })` );
+			formatDeprecated( getTagsByName( symbol.tags, 'deprecated' ), docs );
+			formatDescription( symbol.description, docs );
+			formatTag(
+				'Related',
+				getTagsByName( symbol.tags, 'see', 'link' ),
+				( tag ) => `\n- ${ tag.description }`,
+				docs
+			);
+			formatExamples( getTagsByName( symbol.tags, 'example' ), docs );
+			formatTag(
+				'Type',
+				getTagsByName( symbol.tags, 'type' ),
+				( tag ) => `\n\`${ tag.type }\` ${ cleanSpaces( tag.description ) }`,
+				docs
+			);
+			formatTag(
+				'Parameters',
+				getTagsByName( symbol.tags, 'param' ),
+				( tag ) => `\n- **${ tag.name }** \`${ tag.type }\`: ${ cleanSpaces( tag.description ) }`,
+				docs
+			);
+			formatTag(
+				'Returns',
+				getTagsByName( symbol.tags, 'return' ),
+				( tag ) => `\n\`${ tag.type }\` ${ cleanSpaces( tag.description ) }`,
+				docs
+			);
+			docs.push( '\n' );
+			docs.push( '\n' );
+		} );
+		docs.pop(); // remove last \n, we want one blank line at the end of the file.
+	} else {
+		docs.push( 'Nothing to document.' );
+		docs.push( '\n' );
+	}
+	return docs.join( '' );
+};
diff --git a/packages/docgen/src/markdown/index.js b/packages/docgen/src/markdown/index.js
new file mode 100644
index 00000000000000..499e211e1873a4
--- /dev/null
+++ b/packages/docgen/src/markdown/index.js
@@ -0,0 +1,44 @@
+/**
+ * External dependencies.
+ */
+const remark = require( 'remark' );
+const unified = require( 'unified' );
+const remarkParser = require( 'remark-parse' );
+const inject = require( 'mdast-util-inject' );
+const fs = require( 'fs' );
+
+/**
+ * Internal dependencies.
+ */
+const formatter = require( './formatter' );
+const embed = require( './embed' );
+
+const appendOrEmbedContents = ( { options, newContents } ) => {
+	return function transform( targetAst, file, next ) {
+		if ( options.toSection && ! inject( options.toSection, targetAst, newContents ) ) {
+			return next( new Error( `Heading ${ options.toSection } not found.` ) );
+		} else if ( options.toToken && ! embed( options.useToken, targetAst, newContents ) ) {
+			return next( new Error( `Start and/or end tokens for ${ options.useToken } not found.` ) );
+		}
+		next();
+	};
+};
+
+module.exports = function( options, processDir, doc, filteredIr, headingTitle ) {
+	if ( options.toSection || options.toToken ) {
+		const currentReadmeFile = fs.readFileSync( options.output, 'utf8' );
+		const newContents = unified().use( remarkParser ).parse( formatter( processDir, doc, filteredIr, null ) );
+		remark()
+			.use( { settings: { commonmark: true } } )
+			.use( appendOrEmbedContents, { options, newContents } )
+			.process( currentReadmeFile, function( err, file ) {
+				if ( err ) {
+					throw err;
+				}
+				fs.writeFileSync( doc, file );
+			} );
+	} else {
+		const output = formatter( processDir, doc, filteredIr, headingTitle );
+		fs.writeFileSync( doc, output );
+	}
+};
diff --git a/packages/docgen/src/test/engine.js b/packages/docgen/src/test/engine.js
new file mode 100644
index 00000000000000..3a9efc921a2f01
--- /dev/null
+++ b/packages/docgen/src/test/engine.js
@@ -0,0 +1,11 @@
+/**
+ * Internal dependencies.
+ */
+const engine = require( '../engine' );
+
+describe( 'Engine', () => {
+	it( 'should return a void IR for undefined code', () => {
+		const { ir } = engine( undefined );
+		expect( ir ).toHaveLength( 0 );
+	} );
+} );
diff --git a/packages/docgen/src/test/fixtures/default-class-anonymous/code.js b/packages/docgen/src/test/fixtures/default-class-anonymous/code.js
new file mode 100644
index 00000000000000..79ca0d6a39fcdb
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-class-anonymous/code.js
@@ -0,0 +1,4 @@
+/**
+ * Class declaration example.
+ */
+export default class {}
diff --git a/packages/docgen/src/test/fixtures/default-class-anonymous/exports.json b/packages/docgen/src/test/fixtures/default-class-anonymous/exports.json
new file mode 100644
index 00000000000000..858f07abe98df9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-class-anonymous/exports.json
@@ -0,0 +1,82 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 38,
+	"end": 61,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 23
+		}
+	},
+	"range": [
+		38,
+		61
+	],
+	"declaration": {
+		"type": "ClassDeclaration",
+		"start": 53,
+		"end": 61,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 15
+			},
+			"end": {
+				"line": 4,
+				"column": 23
+			}
+		},
+		"range": [
+			53,
+			61
+		],
+		"id": null,
+		"superClass": null,
+		"body": {
+			"type": "ClassBody",
+			"start": 59,
+			"end": 61,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 21
+				},
+				"end": {
+					"line": 4,
+					"column": 23
+				}
+			},
+			"range": [
+				59,
+				61
+			],
+			"body": []
+		}
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Class declaration example.\n ",
+			"start": 0,
+			"end": 37,
+			"range": [
+				0,
+				37
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-class-named/code.js b/packages/docgen/src/test/fixtures/default-class-named/code.js
new file mode 100644
index 00000000000000..91649c8da44b53
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-class-named/code.js
@@ -0,0 +1,4 @@
+/**
+ * Class declaration example.
+ */
+export default class ClassDeclaration {}
diff --git a/packages/docgen/src/test/fixtures/default-class-named/exports.json b/packages/docgen/src/test/fixtures/default-class-named/exports.json
new file mode 100644
index 00000000000000..7533ef32e60de0
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-class-named/exports.json
@@ -0,0 +1,101 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 38,
+	"end": 78,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 40
+		}
+	},
+	"range": [
+		38,
+		78
+	],
+	"declaration": {
+		"type": "ClassDeclaration",
+		"start": 53,
+		"end": 78,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 15
+			},
+			"end": {
+				"line": 4,
+				"column": 40
+			}
+		},
+		"range": [
+			53,
+			78
+		],
+		"id": {
+			"type": "Identifier",
+			"start": 59,
+			"end": 75,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 21
+				},
+				"end": {
+					"line": 4,
+					"column": 37
+				}
+			},
+			"range": [
+				59,
+				75
+			],
+			"name": "ClassDeclaration"
+		},
+		"superClass": null,
+		"body": {
+			"type": "ClassBody",
+			"start": 76,
+			"end": 78,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 38
+				},
+				"end": {
+					"line": 4,
+					"column": 40
+				}
+			},
+			"range": [
+				76,
+				78
+			],
+			"body": []
+		}
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Class declaration example.\n ",
+			"start": 0,
+			"end": 37,
+			"range": [
+				0,
+				37
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-function-anonymous/code.js b/packages/docgen/src/test/fixtures/default-function-anonymous/code.js
new file mode 100644
index 00000000000000..5c8c7e23a946c8
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-anonymous/code.js
@@ -0,0 +1,4 @@
+/**
+ * Function declaration example.
+ */
+export default function() {}
diff --git a/packages/docgen/src/test/fixtures/default-function-anonymous/exports.json b/packages/docgen/src/test/fixtures/default-function-anonymous/exports.json
new file mode 100644
index 00000000000000..9d10cd6c962f0f
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-anonymous/exports.json
@@ -0,0 +1,85 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 41,
+	"end": 69,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 28
+		}
+	},
+	"range": [
+		41,
+		69
+	],
+	"declaration": {
+		"type": "FunctionDeclaration",
+		"start": 56,
+		"end": 69,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 15
+			},
+			"end": {
+				"line": 4,
+				"column": 28
+			}
+		},
+		"range": [
+			56,
+			69
+		],
+		"id": null,
+		"generator": false,
+		"expression": false,
+		"async": false,
+		"params": [],
+		"body": {
+			"type": "BlockStatement",
+			"start": 67,
+			"end": 69,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 26
+				},
+				"end": {
+					"line": 4,
+					"column": 28
+				}
+			},
+			"range": [
+				67,
+				69
+			],
+			"body": []
+		}
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-function-named/ast.json b/packages/docgen/src/test/fixtures/default-function-named/ast.json
new file mode 100644
index 00000000000000..a082f805974d26
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-named/ast.json
@@ -0,0 +1,148 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 84,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 42
+		}
+	},
+	"range": [
+		41,
+		83
+	],
+	"body": [
+		{
+			"type": "ExportDefaultDeclaration",
+			"start": 41,
+			"end": 83,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 42
+				}
+			},
+			"range": [
+				41,
+				83
+			],
+			"declaration": {
+				"type": "FunctionDeclaration",
+				"start": 56,
+				"end": 83,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 15
+					},
+					"end": {
+						"line": 4,
+						"column": 42
+					}
+				},
+				"range": [
+					56,
+					83
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 65,
+					"end": 78,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 24
+						},
+						"end": {
+							"line": 4,
+							"column": 37
+						}
+					},
+					"range": [
+						65,
+						78
+					],
+					"name": "myDeclaration"
+				},
+				"generator": false,
+				"expression": false,
+				"async": false,
+				"params": [],
+				"body": {
+					"type": "BlockStatement",
+					"start": 81,
+					"end": 83,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 40
+						},
+						"end": {
+							"line": 4,
+							"column": 42
+						}
+					},
+					"range": [
+						81,
+						83
+					],
+					"body": []
+				}
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Function declaration example.\n ",
+					"start": 0,
+					"end": 40,
+					"range": [
+						0,
+						40
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			]
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-function-named/code.js b/packages/docgen/src/test/fixtures/default-function-named/code.js
new file mode 100644
index 00000000000000..74318a75d6ab93
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-named/code.js
@@ -0,0 +1,4 @@
+/**
+ * Function declaration example.
+ */
+export default function myDeclaration() {}
diff --git a/packages/docgen/src/test/fixtures/default-function-named/exports.json b/packages/docgen/src/test/fixtures/default-function-named/exports.json
new file mode 100644
index 00000000000000..7765cbef0da6d9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-named/exports.json
@@ -0,0 +1,104 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 41,
+	"end": 83,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 42
+		}
+	},
+	"range": [
+		41,
+		83
+	],
+	"declaration": {
+		"type": "FunctionDeclaration",
+		"start": 56,
+		"end": 83,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 15
+			},
+			"end": {
+				"line": 4,
+				"column": 42
+			}
+		},
+		"range": [
+			56,
+			83
+		],
+		"id": {
+			"type": "Identifier",
+			"start": 65,
+			"end": 78,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 24
+				},
+				"end": {
+					"line": 4,
+					"column": 37
+				}
+			},
+			"range": [
+				65,
+				78
+			],
+			"name": "myDeclaration"
+		},
+		"generator": false,
+		"expression": false,
+		"async": false,
+		"params": [],
+		"body": {
+			"type": "BlockStatement",
+			"start": 81,
+			"end": 83,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 40
+				},
+				"end": {
+					"line": 4,
+					"column": 42
+				}
+			},
+			"range": [
+				81,
+				83
+			],
+			"body": []
+		}
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-function-named/ir.json b/packages/docgen/src/test/fixtures/default-function-named/ir.json
new file mode 100644
index 00000000000000..526885397806c0
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-function-named/ir.json
@@ -0,0 +1,7 @@
+[
+	{
+		"name": "default",
+		"description": "Function declaration example.",
+		"tags": []
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-identifier/ast.json b/packages/docgen/src/test/fixtures/default-identifier/ast.json
new file mode 100644
index 00000000000000..d83f628004f7de
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-identifier/ast.json
@@ -0,0 +1,165 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 98,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 32
+		}
+	},
+	"range": [
+		38,
+		97
+	],
+	"body": [
+		{
+			"type": "ClassDeclaration",
+			"start": 38,
+			"end": 63,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 25
+				}
+			},
+			"range": [
+				38,
+				63
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 44,
+				"end": 60,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 6
+					},
+					"end": {
+						"line": 4,
+						"column": 22
+					}
+				},
+				"range": [
+					44,
+					60
+				],
+				"name": "ClassDeclaration"
+			},
+			"superClass": null,
+			"body": {
+				"type": "ClassBody",
+				"start": 61,
+				"end": 63,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 23
+					},
+					"end": {
+						"line": 4,
+						"column": 25
+					}
+				},
+				"range": [
+					61,
+					63
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Class declaration example.\n ",
+					"start": 0,
+					"end": 37,
+					"range": [
+						0,
+						37
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportDefaultDeclaration",
+			"start": 65,
+			"end": 97,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 6,
+					"column": 32
+				}
+			},
+			"range": [
+				65,
+				97
+			],
+			"declaration": {
+				"type": "Identifier",
+				"start": 80,
+				"end": 96,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 15
+					},
+					"end": {
+						"line": 6,
+						"column": 31
+					}
+				},
+				"range": [
+					80,
+					96
+				],
+				"name": "ClassDeclaration"
+			}
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * Class declaration example.\n ",
+			"start": 0,
+			"end": 37,
+			"range": [
+				0,
+				37
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-identifier/code.js b/packages/docgen/src/test/fixtures/default-identifier/code.js
new file mode 100644
index 00000000000000..2a172ecc0578fa
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-identifier/code.js
@@ -0,0 +1,6 @@
+/**
+ * Class declaration example.
+ */
+class ClassDeclaration {}
+
+export default ClassDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-identifier/exports.json b/packages/docgen/src/test/fixtures/default-identifier/exports.json
new file mode 100644
index 00000000000000..c5cb42d5ad4caa
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-identifier/exports.json
@@ -0,0 +1,39 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 65,
+	"end": 97,
+	"loc": {
+		"start": {
+			"line": 6,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 32
+		}
+	},
+	"range": [
+		65,
+		97
+	],
+	"declaration": {
+		"type": "Identifier",
+		"start": 80,
+		"end": 96,
+		"loc": {
+			"start": {
+				"line": 6,
+				"column": 15
+			},
+			"end": {
+				"line": 6,
+				"column": 31
+			}
+		},
+		"range": [
+			80,
+			96
+		],
+		"name": "ClassDeclaration"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-default/ast.json b/packages/docgen/src/test/fixtures/default-import-default/ast.json
new file mode 100644
index 00000000000000..ee77f27a561e76
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-default/ast.json
@@ -0,0 +1,143 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 92,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 29
+		}
+	},
+	"range": [
+		0,
+		91
+	],
+	"body": [
+		{
+			"type": "ImportDeclaration",
+			"start": 0,
+			"end": 60,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 1,
+					"column": 60
+				}
+			},
+			"range": [
+				0,
+				60
+			],
+			"specifiers": [
+				{
+					"type": "ImportDefaultSpecifier",
+					"start": 7,
+					"end": 20,
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 7
+						},
+						"end": {
+							"line": 1,
+							"column": 20
+						}
+					},
+					"range": [
+						7,
+						20
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 7,
+						"end": 20,
+						"loc": {
+							"start": {
+								"line": 1,
+								"column": 7
+							},
+							"end": {
+								"line": 1,
+								"column": 20
+							}
+						},
+						"range": [
+							7,
+							20
+						],
+						"name": "fnDeclaration"
+					}
+				}
+			],
+			"source": {
+				"type": "Literal",
+				"start": 26,
+				"end": 59,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 26
+					},
+					"end": {
+						"line": 1,
+						"column": 59
+					}
+				},
+				"range": [
+					26,
+					59
+				],
+				"value": "./default-import-default-module",
+				"raw": "'./default-import-default-module'"
+			}
+		},
+		{
+			"type": "ExportDefaultDeclaration",
+			"start": 62,
+			"end": 91,
+			"loc": {
+				"start": {
+					"line": 3,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 29
+				}
+			},
+			"range": [
+				62,
+				91
+			],
+			"declaration": {
+				"type": "Identifier",
+				"start": 77,
+				"end": 90,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 15
+					},
+					"end": {
+						"line": 3,
+						"column": 28
+					}
+				},
+				"range": [
+					77,
+					90
+				],
+				"name": "fnDeclaration"
+			}
+		}
+	],
+	"sourceType": "module",
+	"comments": []
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-default/code.js b/packages/docgen/src/test/fixtures/default-import-default/code.js
new file mode 100644
index 00000000000000..70619a579c57bf
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-default/code.js
@@ -0,0 +1,6 @@
+/**
+ * Internal dependencies
+ */
+import fnDeclaration from './module-code';
+
+export default fnDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-import-default/exports.json b/packages/docgen/src/test/fixtures/default-import-default/exports.json
new file mode 100644
index 00000000000000..fd453ed3011007
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-default/exports.json
@@ -0,0 +1,39 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 62,
+	"end": 91,
+	"loc": {
+		"start": {
+			"line": 3,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 29
+		}
+	},
+	"range": [
+		62,
+		91
+	],
+	"declaration": {
+		"type": "Identifier",
+		"start": 77,
+		"end": 90,
+		"loc": {
+			"start": {
+				"line": 3,
+				"column": 15
+			},
+			"end": {
+				"line": 3,
+				"column": 28
+			}
+		},
+		"range": [
+			77,
+			90
+		],
+		"name": "fnDeclaration"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-default/module-code.js b/packages/docgen/src/test/fixtures/default-import-default/module-code.js
new file mode 100644
index 00000000000000..4da030a5b9d0a1
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-default/module-code.js
@@ -0,0 +1,6 @@
+/**
+ * Function declaration.
+ */
+function functionDeclaration() {}
+
+export default functionDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-import-default/module-ir.json b/packages/docgen/src/test/fixtures/default-import-default/module-ir.json
new file mode 100644
index 00000000000000..9aaa9dc2213f5c
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-default/module-ir.json
@@ -0,0 +1,7 @@
+[
+	{
+		"name": "default",
+		"description": "Function declaration.",
+		"tags": []
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-named/ast.json b/packages/docgen/src/test/fixtures/default-import-named/ast.json
new file mode 100644
index 00000000000000..73947334d5ac83
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-named/ast.json
@@ -0,0 +1,163 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 117,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 29
+		}
+	},
+	"range": [
+		0,
+		116
+	],
+	"body": [
+		{
+			"type": "ImportDeclaration",
+			"start": 0,
+			"end": 85,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 1,
+					"column": 85
+				}
+			},
+			"range": [
+				0,
+				85
+			],
+			"specifiers": [
+				{
+					"type": "ImportSpecifier",
+					"start": 9,
+					"end": 45,
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 9
+						},
+						"end": {
+							"line": 1,
+							"column": 45
+						}
+					},
+					"range": [
+						9,
+						45
+					],
+					"imported": {
+						"type": "Identifier",
+						"start": 9,
+						"end": 28,
+						"loc": {
+							"start": {
+								"line": 1,
+								"column": 9
+							},
+							"end": {
+								"line": 1,
+								"column": 28
+							}
+						},
+						"range": [
+							9,
+							28
+						],
+						"name": "functionDeclaration"
+					},
+					"local": {
+						"type": "Identifier",
+						"start": 32,
+						"end": 45,
+						"loc": {
+							"start": {
+								"line": 1,
+								"column": 32
+							},
+							"end": {
+								"line": 1,
+								"column": 45
+							}
+						},
+						"range": [
+							32,
+							45
+						],
+						"name": "fnDeclaration"
+					}
+				}
+			],
+			"source": {
+				"type": "Literal",
+				"start": 53,
+				"end": 84,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 53
+					},
+					"end": {
+						"line": 1,
+						"column": 84
+					}
+				},
+				"range": [
+					53,
+					84
+				],
+				"value": "./default-import-named-module",
+				"raw": "'./default-import-named-module'"
+			}
+		},
+		{
+			"type": "ExportDefaultDeclaration",
+			"start": 87,
+			"end": 116,
+			"loc": {
+				"start": {
+					"line": 3,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 29
+				}
+			},
+			"range": [
+				87,
+				116
+			],
+			"declaration": {
+				"type": "Identifier",
+				"start": 102,
+				"end": 115,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 15
+					},
+					"end": {
+						"line": 3,
+						"column": 28
+					}
+				},
+				"range": [
+					102,
+					115
+				],
+				"name": "fnDeclaration"
+			}
+		}
+	],
+	"sourceType": "module",
+	"comments": []
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-named/code.js b/packages/docgen/src/test/fixtures/default-import-named/code.js
new file mode 100644
index 00000000000000..b8e89023444b51
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-named/code.js
@@ -0,0 +1,6 @@
+/**
+ * Internal dependencies
+ */
+import { functionDeclaration as fnDeclaration } from './module-code';
+
+export default fnDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-import-named/exports.json b/packages/docgen/src/test/fixtures/default-import-named/exports.json
new file mode 100644
index 00000000000000..25d0f6024356f9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-named/exports.json
@@ -0,0 +1,39 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 87,
+	"end": 116,
+	"loc": {
+		"start": {
+			"line": 3,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 29
+		}
+	},
+	"range": [
+		87,
+		116
+	],
+	"declaration": {
+		"type": "Identifier",
+		"start": 102,
+		"end": 115,
+		"loc": {
+			"start": {
+				"line": 3,
+				"column": 15
+			},
+			"end": {
+				"line": 3,
+				"column": 28
+			}
+		},
+		"range": [
+			102,
+			115
+		],
+		"name": "fnDeclaration"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-import-named/module-code.js b/packages/docgen/src/test/fixtures/default-import-named/module-code.js
new file mode 100644
index 00000000000000..7ec5c68c3fbb3d
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-named/module-code.js
@@ -0,0 +1,6 @@
+/**
+ * Function declaration.
+ */
+function functionDeclaration() {}
+
+export { functionDeclaration };
diff --git a/packages/docgen/src/test/fixtures/default-import-named/module-ir.json b/packages/docgen/src/test/fixtures/default-import-named/module-ir.json
new file mode 100644
index 00000000000000..3c04255485cb97
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-import-named/module-ir.json
@@ -0,0 +1 @@
+[{"name":"functionDeclaration","description":"Function declaration.","tags":[]}]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-named-export/ast.json b/packages/docgen/src/test/fixtures/default-named-export/ast.json
new file mode 100644
index 00000000000000..31fde5d2e6883f
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-named-export/ast.json
@@ -0,0 +1,189 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 119,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 35
+		}
+	},
+	"range": [
+		41,
+		118
+	],
+	"body": [
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 41,
+			"end": 81,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 40
+				}
+			},
+			"range": [
+				41,
+				81
+			],
+			"declaration": {
+				"type": "FunctionDeclaration",
+				"start": 48,
+				"end": 81,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 7
+					},
+					"end": {
+						"line": 4,
+						"column": 40
+					}
+				},
+				"range": [
+					48,
+					81
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 57,
+					"end": 76,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 16
+						},
+						"end": {
+							"line": 4,
+							"column": 35
+						}
+					},
+					"range": [
+						57,
+						76
+					],
+					"name": "functionDeclaration"
+				},
+				"generator": false,
+				"expression": false,
+				"async": false,
+				"params": [],
+				"body": {
+					"type": "BlockStatement",
+					"start": 79,
+					"end": 81,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 38
+						},
+						"end": {
+							"line": 4,
+							"column": 40
+						}
+					},
+					"range": [
+						79,
+						81
+					],
+					"body": []
+				}
+			},
+			"specifiers": [],
+			"source": null,
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Function declaration example.\n ",
+					"start": 0,
+					"end": 40,
+					"range": [
+						0,
+						40
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportDefaultDeclaration",
+			"start": 83,
+			"end": 118,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 6,
+					"column": 35
+				}
+			},
+			"range": [
+				83,
+				118
+			],
+			"declaration": {
+				"type": "Identifier",
+				"start": 98,
+				"end": 117,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 15
+					},
+					"end": {
+						"line": 6,
+						"column": 34
+					}
+				},
+				"range": [
+					98,
+					117
+				],
+				"name": "functionDeclaration"
+			}
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-named-export/code.js b/packages/docgen/src/test/fixtures/default-named-export/code.js
new file mode 100644
index 00000000000000..bd45a875a5eb69
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-named-export/code.js
@@ -0,0 +1,6 @@
+/**
+ * Function declaration example.
+ */
+export function functionDeclaration() {}
+
+export default functionDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-named-export/exports.json b/packages/docgen/src/test/fixtures/default-named-export/exports.json
new file mode 100644
index 00000000000000..b432555e4d7a43
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-named-export/exports.json
@@ -0,0 +1,147 @@
+[
+	{
+		"type": "ExportNamedDeclaration",
+		"start": 41,
+		"end": 81,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 0
+			},
+			"end": {
+				"line": 4,
+				"column": 40
+			}
+		},
+		"range": [
+			41,
+			81
+		],
+		"declaration": {
+			"type": "FunctionDeclaration",
+			"start": 48,
+			"end": 81,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 7
+				},
+				"end": {
+					"line": 4,
+					"column": 40
+				}
+			},
+			"range": [
+				48,
+				81
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 57,
+				"end": 76,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 16
+					},
+					"end": {
+						"line": 4,
+						"column": 35
+					}
+				},
+				"range": [
+					57,
+					76
+				],
+				"name": "functionDeclaration"
+			},
+			"generator": false,
+			"expression": false,
+			"async": false,
+			"params": [],
+			"body": {
+				"type": "BlockStatement",
+				"start": 79,
+				"end": 81,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 38
+					},
+					"end": {
+						"line": 4,
+						"column": 40
+					}
+				},
+				"range": [
+					79,
+					81
+				],
+				"body": []
+			}
+		},
+		"specifiers": [],
+		"source": null,
+		"leadingComments": [
+			{
+				"type": "Block",
+				"value": "*\n * Function declaration example.\n ",
+				"start": 0,
+				"end": 40,
+				"range": [
+					0,
+					40
+				],
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 0
+					},
+					"end": {
+						"line": 3,
+						"column": 3
+					}
+				}
+			}
+		]
+	},
+	{
+		"type": "ExportDefaultDeclaration",
+		"start": 83,
+		"end": 118,
+		"loc": {
+			"start": {
+				"line": 6,
+				"column": 0
+			},
+			"end": {
+				"line": 6,
+				"column": 35
+			}
+		},
+		"range": [
+			83,
+			118
+		],
+		"declaration": {
+			"type": "Identifier",
+			"start": 98,
+			"end": 117,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 15
+				},
+				"end": {
+					"line": 6,
+					"column": 34
+				}
+			},
+			"range": [
+				98,
+				117
+			],
+			"name": "functionDeclaration"
+		}
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-undocumented-nocomments/code.js b/packages/docgen/src/test/fixtures/default-undocumented-nocomments/code.js
new file mode 100644
index 00000000000000..e82c517463fd04
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-undocumented-nocomments/code.js
@@ -0,0 +1,3 @@
+const myDeclaration = function() {};
+
+export default myDeclaration;
diff --git a/packages/docgen/src/test/fixtures/default-undocumented-nocomments/exports.json b/packages/docgen/src/test/fixtures/default-undocumented-nocomments/exports.json
new file mode 100644
index 00000000000000..ac0eef84379339
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-undocumented-nocomments/exports.json
@@ -0,0 +1,39 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 38,
+	"end": 67,
+	"loc": {
+		"start": {
+			"line": 3,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 29
+		}
+	},
+	"range": [
+		38,
+		67
+	],
+	"declaration": {
+		"type": "Identifier",
+		"start": 53,
+		"end": 66,
+		"loc": {
+			"start": {
+				"line": 3,
+				"column": 15
+			},
+			"end": {
+				"line": 3,
+				"column": 28
+			}
+		},
+		"range": [
+			53,
+			66
+		],
+		"name": "myDeclaration"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-undocumented-oneliner/code.js b/packages/docgen/src/test/fixtures/default-undocumented-oneliner/code.js
new file mode 100644
index 00000000000000..11e8966dd62d1c
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-undocumented-oneliner/code.js
@@ -0,0 +1,2 @@
+// This comment should be ignored
+export default function() { }
diff --git a/packages/docgen/src/test/fixtures/default-undocumented-oneliner/exports.json b/packages/docgen/src/test/fixtures/default-undocumented-oneliner/exports.json
new file mode 100644
index 00000000000000..45c6ab79f09133
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-undocumented-oneliner/exports.json
@@ -0,0 +1,85 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 34,
+	"end": 63,
+	"loc": {
+		"start": {
+			"line": 2,
+			"column": 0
+		},
+		"end": {
+			"line": 2,
+			"column": 29
+		}
+	},
+	"range": [
+		34,
+		63
+	],
+	"declaration": {
+		"type": "FunctionDeclaration",
+		"start": 49,
+		"end": 63,
+		"loc": {
+			"start": {
+				"line": 2,
+				"column": 15
+			},
+			"end": {
+				"line": 2,
+				"column": 29
+			}
+		},
+		"range": [
+			49,
+			63
+		],
+		"id": null,
+		"generator": false,
+		"expression": false,
+		"async": false,
+		"params": [],
+		"body": {
+			"type": "BlockStatement",
+			"start": 60,
+			"end": 63,
+			"loc": {
+				"start": {
+					"line": 2,
+					"column": 26
+				},
+				"end": {
+					"line": 2,
+					"column": 29
+				}
+			},
+			"range": [
+				60,
+				63
+			],
+			"body": []
+		}
+	},
+	"leadingComments": [
+		{
+			"type": "Line",
+			"value": " This comment should be ignored",
+			"start": 0,
+			"end": 33,
+			"range": [
+				0,
+				33
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 1,
+					"column": 33
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/default-variable/code.js b/packages/docgen/src/test/fixtures/default-variable/code.js
new file mode 100644
index 00000000000000..2e1a56238583f6
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-variable/code.js
@@ -0,0 +1,4 @@
+/**
+ * Variable declaration example.
+ */
+export default true;
diff --git a/packages/docgen/src/test/fixtures/default-variable/exports.json b/packages/docgen/src/test/fixtures/default-variable/exports.json
new file mode 100644
index 00000000000000..e6204ba061364b
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/default-variable/exports.json
@@ -0,0 +1,62 @@
+{
+	"type": "ExportDefaultDeclaration",
+	"start": 41,
+	"end": 61,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 20
+		}
+	},
+	"range": [
+		41,
+		61
+	],
+	"declaration": {
+		"type": "Literal",
+		"start": 56,
+		"end": 60,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 15
+			},
+			"end": {
+				"line": 4,
+				"column": 19
+			}
+		},
+		"range": [
+			56,
+			60
+		],
+		"value": true,
+		"raw": "true"
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Variable declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/markdown/code.js b/packages/docgen/src/test/fixtures/markdown/code.js
new file mode 100644
index 00000000000000..8d4261e0f63289
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/markdown/code.js
@@ -0,0 +1,24 @@
+/**
+ * A function that adds two parameters.
+ *
+ * @deprecated Use native addition instead.
+ * @since v2
+ *
+ * @see addition
+ * @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+ *
+ * @param {number} firstParam The first param to add.
+ * @param {number} secondParam The second param to add.
+ *
+ *  @example
+ *
+ * ```js
+ * const addResult = sum( 1, 3 );
+ * console.log( addResult ); // will yield 4
+ * ```
+ *
+ * @return {number} The result of adding the two params.
+ */
+export const sum = ( firstParam, secondParam ) => {
+	return firstParam + secondParam;
+};
diff --git a/packages/docgen/src/test/fixtures/markdown/docs.md b/packages/docgen/src/test/fixtures/markdown/docs.md
new file mode 100644
index 00000000000000..12baa9046d0280
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/markdown/docs.md
@@ -0,0 +1,41 @@
+# Package docs
+
+This is some package docs.
+
+## API Docs
+
+<!-- START TOKEN(Autogenerated API docs) -->
+
+### sum
+
+[code.js#L22-L24](code.js#L22-L24)
+
+> **Deprecated** Use native addition instead.
+
+A function that adds two parameters.
+
+**Related**
+
+-   addition
+-   <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators>
+
+**Usage**
+
+```js
+const addResult = sum( 1, 3 );
+console.log( addResult ); // will yield 4
+```
+
+**Parameters**
+
+-   **firstParam** `number`: The first param to add.
+-   **secondParam** `number`: The second param to add.
+
+**Returns**
+
+`number` The result of adding the two params.
+
+
+<!-- END TOKEN(Autogenerated API docs) -->
+
+After token content.
diff --git a/packages/docgen/src/test/fixtures/named-class/code.js b/packages/docgen/src/test/fixtures/named-class/code.js
new file mode 100644
index 00000000000000..8310ea0c9f7f17
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-class/code.js
@@ -0,0 +1,4 @@
+/**
+ * My declaration example.
+ */
+export class MyDeclaration {}
diff --git a/packages/docgen/src/test/fixtures/named-class/exports.json b/packages/docgen/src/test/fixtures/named-class/exports.json
new file mode 100644
index 00000000000000..e6da37a8974a0a
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-class/exports.json
@@ -0,0 +1,103 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 35,
+	"end": 64,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 29
+		}
+	},
+	"range": [
+		35,
+		64
+	],
+	"declaration": {
+		"type": "ClassDeclaration",
+		"start": 42,
+		"end": 64,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 7
+			},
+			"end": {
+				"line": 4,
+				"column": 29
+			}
+		},
+		"range": [
+			42,
+			64
+		],
+		"id": {
+			"type": "Identifier",
+			"start": 48,
+			"end": 61,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 13
+				},
+				"end": {
+					"line": 4,
+					"column": 26
+				}
+			},
+			"range": [
+				48,
+				61
+			],
+			"name": "MyDeclaration"
+		},
+		"superClass": null,
+		"body": {
+			"type": "ClassBody",
+			"start": 62,
+			"end": 64,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 27
+				},
+				"end": {
+					"line": 4,
+					"column": 29
+				}
+			},
+			"range": [
+				62,
+				64
+			],
+			"body": []
+		}
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-default-exported/code.js b/packages/docgen/src/test/fixtures/named-default-exported/code.js
new file mode 100644
index 00000000000000..7aebc3a91fa1c3
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default-exported/code.js
@@ -0,0 +1 @@
+export { default as moduleName } from './named-default-module';
diff --git a/packages/docgen/src/test/fixtures/named-default-exported/exports.json b/packages/docgen/src/test/fixtures/named-default-exported/exports.json
new file mode 100644
index 00000000000000..5cfbfc16615810
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default-exported/exports.json
@@ -0,0 +1,102 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 0,
+	"end": 63,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 1,
+			"column": 63
+		}
+	},
+	"range": [
+		0,
+		63
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 9,
+			"end": 30,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 9
+				},
+				"end": {
+					"line": 1,
+					"column": 30
+				}
+			},
+			"range": [
+				9,
+				30
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 9,
+				"end": 16,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 9
+					},
+					"end": {
+						"line": 1,
+						"column": 16
+					}
+				},
+				"range": [
+					9,
+					16
+				],
+				"name": "default"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 20,
+				"end": 30,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 20
+					},
+					"end": {
+						"line": 1,
+						"column": 30
+					}
+				},
+				"range": [
+					20,
+					30
+				],
+				"name": "moduleName"
+			}
+		}
+	],
+	"source": {
+		"type": "Literal",
+		"start": 38,
+		"end": 62,
+		"loc": {
+			"start": {
+				"line": 1,
+				"column": 38
+			},
+			"end": {
+				"line": 1,
+				"column": 62
+			}
+		},
+		"range": [
+			38,
+			62
+		],
+		"value": "./named-default-module",
+		"raw": "'./named-default-module'"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-default-exported/module-code.js b/packages/docgen/src/test/fixtures/named-default-exported/module-code.js
new file mode 100644
index 00000000000000..92127f1f850593
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default-exported/module-code.js
@@ -0,0 +1,4 @@
+/**
+ * Module declaration.
+ */
+export default function( ) {}
diff --git a/packages/docgen/src/test/fixtures/named-default-exported/module-ir.json b/packages/docgen/src/test/fixtures/named-default-exported/module-ir.json
new file mode 100644
index 00000000000000..9e9b2ce30509ed
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default-exported/module-ir.json
@@ -0,0 +1,5 @@
+[{
+	"name": "default",
+	"description": "Module declaration.",
+	"tags": []
+}]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-default/code.js b/packages/docgen/src/test/fixtures/named-default/code.js
new file mode 100644
index 00000000000000..441f6e366117f8
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default/code.js
@@ -0,0 +1 @@
+export { default } from './module-code';
diff --git a/packages/docgen/src/test/fixtures/named-default/exports.json b/packages/docgen/src/test/fixtures/named-default/exports.json
new file mode 100644
index 00000000000000..fd3a3c79d6a8b3
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default/exports.json
@@ -0,0 +1,102 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 0,
+	"end": 49,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 1,
+			"column": 49
+		}
+	},
+	"range": [
+		0,
+		49
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 9,
+			"end": 16,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 9
+				},
+				"end": {
+					"line": 1,
+					"column": 16
+				}
+			},
+			"range": [
+				9,
+				16
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 9,
+				"end": 16,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 9
+					},
+					"end": {
+						"line": 1,
+						"column": 16
+					}
+				},
+				"range": [
+					9,
+					16
+				],
+				"name": "default"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 9,
+				"end": 16,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 9
+					},
+					"end": {
+						"line": 1,
+						"column": 16
+					}
+				},
+				"range": [
+					9,
+					16
+				],
+				"name": "default"
+			}
+		}
+	],
+	"source": {
+		"type": "Literal",
+		"start": 24,
+		"end": 48,
+		"loc": {
+			"start": {
+				"line": 1,
+				"column": 24
+			},
+			"end": {
+				"line": 1,
+				"column": 48
+			}
+		},
+		"range": [
+			24,
+			48
+		],
+		"value": "./named-default-module",
+		"raw": "'./named-default-module'"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-default/module-code.js b/packages/docgen/src/test/fixtures/named-default/module-code.js
new file mode 100644
index 00000000000000..92127f1f850593
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default/module-code.js
@@ -0,0 +1,4 @@
+/**
+ * Module declaration.
+ */
+export default function( ) {}
diff --git a/packages/docgen/src/test/fixtures/named-default/module-ir.json b/packages/docgen/src/test/fixtures/named-default/module-ir.json
new file mode 100644
index 00000000000000..9e9b2ce30509ed
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-default/module-ir.json
@@ -0,0 +1,5 @@
+[{
+	"name": "default",
+	"description": "Module declaration.",
+	"tags": []
+}]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-function/code.js b/packages/docgen/src/test/fixtures/named-function/code.js
new file mode 100644
index 00000000000000..eadb279918d042
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-function/code.js
@@ -0,0 +1,4 @@
+/**
+ * My declaration example.
+ */
+export function myDeclaration() {}
diff --git a/packages/docgen/src/test/fixtures/named-function/exports.json b/packages/docgen/src/test/fixtures/named-function/exports.json
new file mode 100644
index 00000000000000..8de0b612c6af6d
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-function/exports.json
@@ -0,0 +1,106 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 35,
+	"end": 69,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 34
+		}
+	},
+	"range": [
+		35,
+		69
+	],
+	"declaration": {
+		"type": "FunctionDeclaration",
+		"start": 42,
+		"end": 69,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 7
+			},
+			"end": {
+				"line": 4,
+				"column": 34
+			}
+		},
+		"range": [
+			42,
+			69
+		],
+		"id": {
+			"type": "Identifier",
+			"start": 51,
+			"end": 64,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 16
+				},
+				"end": {
+					"line": 4,
+					"column": 29
+				}
+			},
+			"range": [
+				51,
+				64
+			],
+			"name": "myDeclaration"
+		},
+		"generator": false,
+		"expression": false,
+		"async": false,
+		"params": [],
+		"body": {
+			"type": "BlockStatement",
+			"start": 67,
+			"end": 69,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 32
+				},
+				"end": {
+					"line": 4,
+					"column": 34
+				}
+			},
+			"range": [
+				67,
+				69
+			],
+			"body": []
+		}
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-function/ir.json b/packages/docgen/src/test/fixtures/named-function/ir.json
new file mode 100644
index 00000000000000..a9d9ab4175c9c5
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-function/ir.json
@@ -0,0 +1,7 @@
+[
+	{
+		"name": "myDeclaration",
+		"description": "My declaration example.",
+		"tags": []
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifier-destructuring/ast.json b/packages/docgen/src/test/fixtures/named-identifier-destructuring/ast.json
new file mode 100644
index 00000000000000..9c17f5ad7401d9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier-destructuring/ast.json
@@ -0,0 +1,381 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 141,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 44
+		}
+	},
+	"range": [
+		35,
+		140
+	],
+	"body": [
+		{
+			"type": "VariableDeclaration",
+			"start": 35,
+			"end": 94,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 59
+				}
+			},
+			"range": [
+				35,
+				94
+			],
+			"declarations": [
+				{
+					"type": "VariableDeclarator",
+					"start": 41,
+					"end": 93,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 6
+						},
+						"end": {
+							"line": 4,
+							"column": 58
+						}
+					},
+					"range": [
+						41,
+						93
+					],
+					"id": {
+						"type": "ObjectPattern",
+						"start": 41,
+						"end": 60,
+						"loc": {
+							"start": {
+								"line": 4,
+								"column": 6
+							},
+							"end": {
+								"line": 4,
+								"column": 25
+							}
+						},
+						"range": [
+							41,
+							60
+						],
+						"properties": [
+							{
+								"type": "Property",
+								"start": 43,
+								"end": 58,
+								"loc": {
+									"start": {
+										"line": 4,
+										"column": 8
+									},
+									"end": {
+										"line": 4,
+										"column": 23
+									}
+								},
+								"range": [
+									43,
+									58
+								],
+								"method": false,
+								"shorthand": true,
+								"computed": false,
+								"key": {
+									"type": "Identifier",
+									"start": 43,
+									"end": 58,
+									"loc": {
+										"start": {
+											"line": 4,
+											"column": 8
+										},
+										"end": {
+											"line": 4,
+											"column": 23
+										}
+									},
+									"range": [
+										43,
+										58
+									],
+									"name": "someDeclaration"
+								},
+								"kind": "init",
+								"value": {
+									"type": "Identifier",
+									"start": 43,
+									"end": 58,
+									"loc": {
+										"start": {
+											"line": 4,
+											"column": 8
+										},
+										"end": {
+											"line": 4,
+											"column": 23
+										}
+									},
+									"range": [
+										43,
+										58
+									],
+									"name": "someDeclaration"
+								}
+							}
+						]
+					},
+					"init": {
+						"type": "ObjectExpression",
+						"start": 63,
+						"end": 93,
+						"loc": {
+							"start": {
+								"line": 4,
+								"column": 28
+							},
+							"end": {
+								"line": 4,
+								"column": 58
+							}
+						},
+						"range": [
+							63,
+							93
+						],
+						"properties": [
+							{
+								"type": "Property",
+								"start": 65,
+								"end": 91,
+								"loc": {
+									"start": {
+										"line": 4,
+										"column": 30
+									},
+									"end": {
+										"line": 4,
+										"column": 56
+									}
+								},
+								"range": [
+									65,
+									91
+								],
+								"method": false,
+								"shorthand": false,
+								"computed": false,
+								"key": {
+									"type": "Identifier",
+									"start": 65,
+									"end": 80,
+									"loc": {
+										"start": {
+											"line": 4,
+											"column": 30
+										},
+										"end": {
+											"line": 4,
+											"column": 45
+										}
+									},
+									"range": [
+										65,
+										80
+									],
+									"name": "someDeclaration"
+								},
+								"value": {
+									"type": "ArrowFunctionExpression",
+									"start": 82,
+									"end": 91,
+									"loc": {
+										"start": {
+											"line": 4,
+											"column": 47
+										},
+										"end": {
+											"line": 4,
+											"column": 56
+										}
+									},
+									"range": [
+										82,
+										91
+									],
+									"id": null,
+									"generator": false,
+									"expression": false,
+									"async": false,
+									"params": [],
+									"body": {
+										"type": "BlockStatement",
+										"start": 88,
+										"end": 91,
+										"loc": {
+											"start": {
+												"line": 4,
+												"column": 53
+											},
+											"end": {
+												"line": 4,
+												"column": 56
+											}
+										},
+										"range": [
+											88,
+											91
+										],
+										"body": []
+									}
+								},
+								"kind": "init"
+							}
+						]
+					}
+				}
+			],
+			"kind": "const",
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * My declaration example.\n ",
+					"start": 0,
+					"end": 34,
+					"range": [
+						0,
+						34
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 96,
+			"end": 140,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 6,
+					"column": 44
+				}
+			},
+			"range": [
+				96,
+				140
+			],
+			"declaration": null,
+			"specifiers": [
+				{
+					"type": "ExportSpecifier",
+					"start": 105,
+					"end": 137,
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 9
+						},
+						"end": {
+							"line": 6,
+							"column": 41
+						}
+					},
+					"range": [
+						105,
+						137
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 105,
+						"end": 120,
+						"loc": {
+							"start": {
+								"line": 6,
+								"column": 9
+							},
+							"end": {
+								"line": 6,
+								"column": 24
+							}
+						},
+						"range": [
+							105,
+							120
+						],
+						"name": "someDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 124,
+						"end": 137,
+						"loc": {
+							"start": {
+								"line": 6,
+								"column": 28
+							},
+							"end": {
+								"line": 6,
+								"column": 41
+							}
+						},
+						"range": [
+							124,
+							137
+						],
+						"name": "myDeclaration"
+					}
+				}
+			],
+			"source": null
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifier-destructuring/code.js b/packages/docgen/src/test/fixtures/named-identifier-destructuring/code.js
new file mode 100644
index 00000000000000..d5e1b5d46160d9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier-destructuring/code.js
@@ -0,0 +1,6 @@
+/**
+ * My declaration example.
+ */
+const { someDeclaration } = { someDeclaration: () => { } };
+
+export { someDeclaration as myDeclaration };
diff --git a/packages/docgen/src/test/fixtures/named-identifier-destructuring/exports.json b/packages/docgen/src/test/fixtures/named-identifier-destructuring/exports.json
new file mode 100644
index 00000000000000..ac2695f1c68fa2
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier-destructuring/exports.json
@@ -0,0 +1,82 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 96,
+	"end": 140,
+	"loc": {
+		"start": {
+			"line": 6,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 44
+		}
+	},
+	"range": [
+		96,
+		140
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 105,
+			"end": 137,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 9
+				},
+				"end": {
+					"line": 6,
+					"column": 41
+				}
+			},
+			"range": [
+				105,
+				137
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 105,
+				"end": 120,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 9
+					},
+					"end": {
+						"line": 6,
+						"column": 24
+					}
+				},
+				"range": [
+					105,
+					120
+				],
+				"name": "someDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 124,
+				"end": 137,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 28
+					},
+					"end": {
+						"line": 6,
+						"column": 41
+					}
+				},
+				"range": [
+					124,
+					137
+				],
+				"name": "myDeclaration"
+			}
+		}
+	],
+	"source": null
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifier/ast.json b/packages/docgen/src/test/fixtures/named-identifier/ast.json
new file mode 100644
index 00000000000000..40eb2039185e3d
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier/ast.json
@@ -0,0 +1,211 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 90,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 25
+		}
+	},
+	"range": [
+		35,
+		89
+	],
+	"body": [
+		{
+			"type": "FunctionDeclaration",
+			"start": 35,
+			"end": 62,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 27
+				}
+			},
+			"range": [
+				35,
+				62
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 44,
+				"end": 57,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 9
+					},
+					"end": {
+						"line": 4,
+						"column": 22
+					}
+				},
+				"range": [
+					44,
+					57
+				],
+				"name": "myDeclaration"
+			},
+			"generator": false,
+			"expression": false,
+			"async": false,
+			"params": [],
+			"body": {
+				"type": "BlockStatement",
+				"start": 60,
+				"end": 62,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 25
+					},
+					"end": {
+						"line": 4,
+						"column": 27
+					}
+				},
+				"range": [
+					60,
+					62
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * My declaration example.\n ",
+					"start": 0,
+					"end": 34,
+					"range": [
+						0,
+						34
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 64,
+			"end": 89,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 6,
+					"column": 25
+				}
+			},
+			"range": [
+				64,
+				89
+			],
+			"declaration": null,
+			"specifiers": [
+				{
+					"type": "ExportSpecifier",
+					"start": 73,
+					"end": 86,
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 9
+						},
+						"end": {
+							"line": 6,
+							"column": 22
+						}
+					},
+					"range": [
+						73,
+						86
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 73,
+						"end": 86,
+						"loc": {
+							"start": {
+								"line": 6,
+								"column": 9
+							},
+							"end": {
+								"line": 6,
+								"column": 22
+							}
+						},
+						"range": [
+							73,
+							86
+						],
+						"name": "myDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 73,
+						"end": 86,
+						"loc": {
+							"start": {
+								"line": 6,
+								"column": 9
+							},
+							"end": {
+								"line": 6,
+								"column": 22
+							}
+						},
+						"range": [
+							73,
+							86
+						],
+						"name": "myDeclaration"
+					}
+				}
+			],
+			"source": null
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifier/code.js b/packages/docgen/src/test/fixtures/named-identifier/code.js
new file mode 100644
index 00000000000000..8fbd063086c192
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier/code.js
@@ -0,0 +1,6 @@
+/**
+ * My declaration example.
+ */
+function myDeclaration() {}
+
+export { myDeclaration };
diff --git a/packages/docgen/src/test/fixtures/named-identifier/exports.json b/packages/docgen/src/test/fixtures/named-identifier/exports.json
new file mode 100644
index 00000000000000..3c2c7680042cfb
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifier/exports.json
@@ -0,0 +1,82 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 64,
+	"end": 89,
+	"loc": {
+		"start": {
+			"line": 6,
+			"column": 0
+		},
+		"end": {
+			"line": 6,
+			"column": 25
+		}
+	},
+	"range": [
+		64,
+		89
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 73,
+			"end": 86,
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 9
+				},
+				"end": {
+					"line": 6,
+					"column": 22
+				}
+			},
+			"range": [
+				73,
+				86
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 73,
+				"end": 86,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 9
+					},
+					"end": {
+						"line": 6,
+						"column": 22
+					}
+				},
+				"range": [
+					73,
+					86
+				],
+				"name": "myDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 73,
+				"end": 86,
+				"loc": {
+					"start": {
+						"line": 6,
+						"column": 9
+					},
+					"end": {
+						"line": 6,
+						"column": 22
+					}
+				},
+				"range": [
+					73,
+					86
+				],
+				"name": "myDeclaration"
+			}
+		}
+	],
+	"source": null
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifiers-and-inline/ast.json b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/ast.json
new file mode 100644
index 00000000000000..d761a6035d6c2b
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/ast.json
@@ -0,0 +1,561 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 275,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 16,
+			"column": 40
+		}
+	},
+	"range": [
+		41,
+		273
+	],
+	"body": [
+		{
+			"type": "FunctionDeclaration",
+			"start": 41,
+			"end": 74,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 33
+				}
+			},
+			"range": [
+				41,
+				74
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 50,
+				"end": 69,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 9
+					},
+					"end": {
+						"line": 4,
+						"column": 28
+					}
+				},
+				"range": [
+					50,
+					69
+				],
+				"name": "functionDeclaration"
+			},
+			"generator": false,
+			"expression": false,
+			"async": false,
+			"params": [],
+			"body": {
+				"type": "BlockStatement",
+				"start": 72,
+				"end": 74,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 31
+					},
+					"end": {
+						"line": 4,
+						"column": 33
+					}
+				},
+				"range": [
+					72,
+					74
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Function declaration example.\n ",
+					"start": 0,
+					"end": 40,
+					"range": [
+						0,
+						40
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			],
+			"trailingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Class declaration example.\n ",
+					"start": 76,
+					"end": 113,
+					"range": [
+						76,
+						113
+					],
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 0
+						},
+						"end": {
+							"line": 8,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ClassDeclaration",
+			"start": 114,
+			"end": 139,
+			"loc": {
+				"start": {
+					"line": 9,
+					"column": 0
+				},
+				"end": {
+					"line": 9,
+					"column": 25
+				}
+			},
+			"range": [
+				114,
+				139
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 120,
+				"end": 136,
+				"loc": {
+					"start": {
+						"line": 9,
+						"column": 6
+					},
+					"end": {
+						"line": 9,
+						"column": 22
+					}
+				},
+				"range": [
+					120,
+					136
+				],
+				"name": "ClassDeclaration"
+			},
+			"superClass": null,
+			"body": {
+				"type": "ClassBody",
+				"start": 137,
+				"end": 139,
+				"loc": {
+					"start": {
+						"line": 9,
+						"column": 23
+					},
+					"end": {
+						"line": 9,
+						"column": 25
+					}
+				},
+				"range": [
+					137,
+					139
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Class declaration example.\n ",
+					"start": 76,
+					"end": 113,
+					"range": [
+						76,
+						113
+					],
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 0
+						},
+						"end": {
+							"line": 8,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 141,
+			"end": 190,
+			"loc": {
+				"start": {
+					"line": 11,
+					"column": 0
+				},
+				"end": {
+					"line": 11,
+					"column": 49
+				}
+			},
+			"range": [
+				141,
+				190
+			],
+			"declaration": null,
+			"specifiers": [
+				{
+					"type": "ExportSpecifier",
+					"start": 150,
+					"end": 169,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 9
+						},
+						"end": {
+							"line": 11,
+							"column": 28
+						}
+					},
+					"range": [
+						150,
+						169
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 150,
+						"end": 169,
+						"loc": {
+							"start": {
+								"line": 11,
+								"column": 9
+							},
+							"end": {
+								"line": 11,
+								"column": 28
+							}
+						},
+						"range": [
+							150,
+							169
+						],
+						"name": "functionDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 150,
+						"end": 169,
+						"loc": {
+							"start": {
+								"line": 11,
+								"column": 9
+							},
+							"end": {
+								"line": 11,
+								"column": 28
+							}
+						},
+						"range": [
+							150,
+							169
+						],
+						"name": "functionDeclaration"
+					}
+				},
+				{
+					"type": "ExportSpecifier",
+					"start": 171,
+					"end": 187,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 30
+						},
+						"end": {
+							"line": 11,
+							"column": 46
+						}
+					},
+					"range": [
+						171,
+						187
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 171,
+						"end": 187,
+						"loc": {
+							"start": {
+								"line": 11,
+								"column": 30
+							},
+							"end": {
+								"line": 11,
+								"column": 46
+							}
+						},
+						"range": [
+							171,
+							187
+						],
+						"name": "ClassDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 171,
+						"end": 187,
+						"loc": {
+							"start": {
+								"line": 11,
+								"column": 30
+							},
+							"end": {
+								"line": 11,
+								"column": 46
+							}
+						},
+						"range": [
+							171,
+							187
+						],
+						"name": "ClassDeclaration"
+					}
+				}
+			],
+			"source": null,
+			"trailingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Variable declaration example.\n ",
+					"start": 192,
+					"end": 232,
+					"range": [
+						192,
+						232
+					],
+					"loc": {
+						"start": {
+							"line": 13,
+							"column": 0
+						},
+						"end": {
+							"line": 15,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 233,
+			"end": 273,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 0
+				},
+				"end": {
+					"line": 16,
+					"column": 40
+				}
+			},
+			"range": [
+				233,
+				273
+			],
+			"declaration": {
+				"type": "VariableDeclaration",
+				"start": 240,
+				"end": 273,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 7
+					},
+					"end": {
+						"line": 16,
+						"column": 40
+					}
+				},
+				"range": [
+					240,
+					273
+				],
+				"declarations": [
+					{
+						"type": "VariableDeclarator",
+						"start": 246,
+						"end": 272,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 13
+							},
+							"end": {
+								"line": 16,
+								"column": 39
+							}
+						},
+						"range": [
+							246,
+							272
+						],
+						"id": {
+							"type": "Identifier",
+							"start": 246,
+							"end": 265,
+							"loc": {
+								"start": {
+									"line": 16,
+									"column": 13
+								},
+								"end": {
+									"line": 16,
+									"column": 32
+								}
+							},
+							"range": [
+								246,
+								265
+							],
+							"name": "variableDeclaration"
+						},
+						"init": {
+							"type": "Literal",
+							"start": 268,
+							"end": 272,
+							"loc": {
+								"start": {
+									"line": 16,
+									"column": 35
+								},
+								"end": {
+									"line": 16,
+									"column": 39
+								}
+							},
+							"range": [
+								268,
+								272
+							],
+							"value": true,
+							"raw": "true"
+						}
+					}
+				],
+				"kind": "const"
+			},
+			"specifiers": [],
+			"source": null,
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Variable declaration example.\n ",
+					"start": 192,
+					"end": 232,
+					"range": [
+						192,
+						232
+					],
+					"loc": {
+						"start": {
+							"line": 13,
+							"column": 0
+						},
+						"end": {
+							"line": 15,
+							"column": 3
+						}
+					}
+				}
+			]
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		},
+		{
+			"type": "Block",
+			"value": "*\n * Class declaration example.\n ",
+			"start": 76,
+			"end": 113,
+			"range": [
+				76,
+				113
+			],
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 8,
+					"column": 3
+				}
+			}
+		},
+		{
+			"type": "Block",
+			"value": "*\n * Variable declaration example.\n ",
+			"start": 192,
+			"end": 232,
+			"range": [
+				192,
+				232
+			],
+			"loc": {
+				"start": {
+					"line": 13,
+					"column": 0
+				},
+				"end": {
+					"line": 15,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifiers-and-inline/code.js b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/code.js
new file mode 100644
index 00000000000000..10b836d597856f
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/code.js
@@ -0,0 +1,17 @@
+/**
+ * Function declaration example.
+ */
+function functionDeclaration() {}
+
+/**
+ * Class declaration example.
+ */
+class ClassDeclaration {}
+
+export { functionDeclaration, ClassDeclaration };
+
+/**
+ * Variable declaration example.
+ */
+export const variableDeclaration = true;
+
diff --git a/packages/docgen/src/test/fixtures/named-identifiers-and-inline/exports.json b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/exports.json
new file mode 100644
index 00000000000000..960e07f08fd7c8
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers-and-inline/exports.json
@@ -0,0 +1,290 @@
+[
+	{
+		"type": "ExportNamedDeclaration",
+		"start": 141,
+		"end": 190,
+		"loc": {
+			"start": {
+				"line": 11,
+				"column": 0
+			},
+			"end": {
+				"line": 11,
+				"column": 49
+			}
+		},
+		"range": [
+			141,
+			190
+		],
+		"declaration": null,
+		"specifiers": [
+			{
+				"type": "ExportSpecifier",
+				"start": 150,
+				"end": 169,
+				"loc": {
+					"start": {
+						"line": 11,
+						"column": 9
+					},
+					"end": {
+						"line": 11,
+						"column": 28
+					}
+				},
+				"range": [
+					150,
+					169
+				],
+				"local": {
+					"type": "Identifier",
+					"start": 150,
+					"end": 169,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 9
+						},
+						"end": {
+							"line": 11,
+							"column": 28
+						}
+					},
+					"range": [
+						150,
+						169
+					],
+					"name": "functionDeclaration"
+				},
+				"exported": {
+					"type": "Identifier",
+					"start": 150,
+					"end": 169,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 9
+						},
+						"end": {
+							"line": 11,
+							"column": 28
+						}
+					},
+					"range": [
+						150,
+						169
+					],
+					"name": "functionDeclaration"
+				}
+			},
+			{
+				"type": "ExportSpecifier",
+				"start": 171,
+				"end": 187,
+				"loc": {
+					"start": {
+						"line": 11,
+						"column": 30
+					},
+					"end": {
+						"line": 11,
+						"column": 46
+					}
+				},
+				"range": [
+					171,
+					187
+				],
+				"local": {
+					"type": "Identifier",
+					"start": 171,
+					"end": 187,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 30
+						},
+						"end": {
+							"line": 11,
+							"column": 46
+						}
+					},
+					"range": [
+						171,
+						187
+					],
+					"name": "ClassDeclaration"
+				},
+				"exported": {
+					"type": "Identifier",
+					"start": 171,
+					"end": 187,
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 30
+						},
+						"end": {
+							"line": 11,
+							"column": 46
+						}
+					},
+					"range": [
+						171,
+						187
+					],
+					"name": "ClassDeclaration"
+				}
+			}
+		],
+		"source": null,
+		"trailingComments": [
+			{
+				"type": "Block",
+				"value": "*\n * Variable declaration example.\n ",
+				"start": 192,
+				"end": 232,
+				"range": [
+					192,
+					232
+				],
+				"loc": {
+					"start": {
+						"line": 13,
+						"column": 0
+					},
+					"end": {
+						"line": 15,
+						"column": 3
+					}
+				}
+			}
+		]
+	},
+	{
+		"type": "ExportNamedDeclaration",
+		"start": 233,
+		"end": 273,
+		"loc": {
+			"start": {
+				"line": 16,
+				"column": 0
+			},
+			"end": {
+				"line": 16,
+				"column": 40
+			}
+		},
+		"range": [
+			233,
+			273
+		],
+		"declaration": {
+			"type": "VariableDeclaration",
+			"start": 240,
+			"end": 273,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 7
+				},
+				"end": {
+					"line": 16,
+					"column": 40
+				}
+			},
+			"range": [
+				240,
+				273
+			],
+			"declarations": [
+				{
+					"type": "VariableDeclarator",
+					"start": 246,
+					"end": 272,
+					"loc": {
+						"start": {
+							"line": 16,
+							"column": 13
+						},
+						"end": {
+							"line": 16,
+							"column": 39
+						}
+					},
+					"range": [
+						246,
+						272
+					],
+					"id": {
+						"type": "Identifier",
+						"start": 246,
+						"end": 265,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 13
+							},
+							"end": {
+								"line": 16,
+								"column": 32
+							}
+						},
+						"range": [
+							246,
+							265
+						],
+						"name": "variableDeclaration"
+					},
+					"init": {
+						"type": "Literal",
+						"start": 268,
+						"end": 272,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 35
+							},
+							"end": {
+								"line": 16,
+								"column": 39
+							}
+						},
+						"range": [
+							268,
+							272
+						],
+						"value": true,
+						"raw": "true"
+					}
+				}
+			],
+			"kind": "const"
+		},
+		"specifiers": [],
+		"source": null,
+		"leadingComments": [
+			{
+				"type": "Block",
+				"value": "*\n * Variable declaration example.\n ",
+				"start": 192,
+				"end": 232,
+				"range": [
+					192,
+					232
+				],
+				"loc": {
+					"start": {
+						"line": 13,
+						"column": 0
+					},
+					"end": {
+						"line": 15,
+						"column": 3
+					}
+				}
+			}
+		]
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifiers/ast.json b/packages/docgen/src/test/fixtures/named-identifiers/ast.json
new file mode 100644
index 00000000000000..f6aa5b92541abc
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers/ast.json
@@ -0,0 +1,599 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 288,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 16,
+			"column": 70
+		}
+	},
+	"range": [
+		41,
+		287
+	],
+	"body": [
+		{
+			"type": "FunctionDeclaration",
+			"start": 41,
+			"end": 74,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 0
+				},
+				"end": {
+					"line": 4,
+					"column": 33
+				}
+			},
+			"range": [
+				41,
+				74
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 50,
+				"end": 69,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 9
+					},
+					"end": {
+						"line": 4,
+						"column": 28
+					}
+				},
+				"range": [
+					50,
+					69
+				],
+				"name": "functionDeclaration"
+			},
+			"generator": false,
+			"expression": false,
+			"async": false,
+			"params": [],
+			"body": {
+				"type": "BlockStatement",
+				"start": 72,
+				"end": 74,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 31
+					},
+					"end": {
+						"line": 4,
+						"column": 33
+					}
+				},
+				"range": [
+					72,
+					74
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Function declaration example.\n ",
+					"start": 0,
+					"end": 40,
+					"range": [
+						0,
+						40
+					],
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 0
+						},
+						"end": {
+							"line": 3,
+							"column": 3
+						}
+					}
+				}
+			],
+			"trailingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Class declaration example.\n ",
+					"start": 76,
+					"end": 113,
+					"range": [
+						76,
+						113
+					],
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 0
+						},
+						"end": {
+							"line": 8,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ClassDeclaration",
+			"start": 114,
+			"end": 139,
+			"loc": {
+				"start": {
+					"line": 9,
+					"column": 0
+				},
+				"end": {
+					"line": 9,
+					"column": 25
+				}
+			},
+			"range": [
+				114,
+				139
+			],
+			"id": {
+				"type": "Identifier",
+				"start": 120,
+				"end": 136,
+				"loc": {
+					"start": {
+						"line": 9,
+						"column": 6
+					},
+					"end": {
+						"line": 9,
+						"column": 22
+					}
+				},
+				"range": [
+					120,
+					136
+				],
+				"name": "ClassDeclaration"
+			},
+			"superClass": null,
+			"body": {
+				"type": "ClassBody",
+				"start": 137,
+				"end": 139,
+				"loc": {
+					"start": {
+						"line": 9,
+						"column": 23
+					},
+					"end": {
+						"line": 9,
+						"column": 25
+					}
+				},
+				"range": [
+					137,
+					139
+				],
+				"body": []
+			},
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Class declaration example.\n ",
+					"start": 76,
+					"end": 113,
+					"range": [
+						76,
+						113
+					],
+					"loc": {
+						"start": {
+							"line": 6,
+							"column": 0
+						},
+						"end": {
+							"line": 8,
+							"column": 3
+						}
+					}
+				}
+			],
+			"trailingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Variable declaration example.\n ",
+					"start": 141,
+					"end": 181,
+					"range": [
+						141,
+						181
+					],
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 0
+						},
+						"end": {
+							"line": 13,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "VariableDeclaration",
+			"start": 182,
+			"end": 215,
+			"loc": {
+				"start": {
+					"line": 14,
+					"column": 0
+				},
+				"end": {
+					"line": 14,
+					"column": 33
+				}
+			},
+			"range": [
+				182,
+				215
+			],
+			"declarations": [
+				{
+					"type": "VariableDeclarator",
+					"start": 188,
+					"end": 214,
+					"loc": {
+						"start": {
+							"line": 14,
+							"column": 6
+						},
+						"end": {
+							"line": 14,
+							"column": 32
+						}
+					},
+					"range": [
+						188,
+						214
+					],
+					"id": {
+						"type": "Identifier",
+						"start": 188,
+						"end": 207,
+						"loc": {
+							"start": {
+								"line": 14,
+								"column": 6
+							},
+							"end": {
+								"line": 14,
+								"column": 25
+							}
+						},
+						"range": [
+							188,
+							207
+						],
+						"name": "variableDeclaration"
+					},
+					"init": {
+						"type": "Literal",
+						"start": 210,
+						"end": 214,
+						"loc": {
+							"start": {
+								"line": 14,
+								"column": 28
+							},
+							"end": {
+								"line": 14,
+								"column": 32
+							}
+						},
+						"range": [
+							210,
+							214
+						],
+						"value": true,
+						"raw": "true"
+					}
+				}
+			],
+			"kind": "const",
+			"leadingComments": [
+				{
+					"type": "Block",
+					"value": "*\n * Variable declaration example.\n ",
+					"start": 141,
+					"end": 181,
+					"range": [
+						141,
+						181
+					],
+					"loc": {
+						"start": {
+							"line": 11,
+							"column": 0
+						},
+						"end": {
+							"line": 13,
+							"column": 3
+						}
+					}
+				}
+			]
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 217,
+			"end": 287,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 0
+				},
+				"end": {
+					"line": 16,
+					"column": 70
+				}
+			},
+			"range": [
+				217,
+				287
+			],
+			"declaration": null,
+			"specifiers": [
+				{
+					"type": "ExportSpecifier",
+					"start": 226,
+					"end": 245,
+					"loc": {
+						"start": {
+							"line": 16,
+							"column": 9
+						},
+						"end": {
+							"line": 16,
+							"column": 28
+						}
+					},
+					"range": [
+						226,
+						245
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 226,
+						"end": 245,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 9
+							},
+							"end": {
+								"line": 16,
+								"column": 28
+							}
+						},
+						"range": [
+							226,
+							245
+						],
+						"name": "functionDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 226,
+						"end": 245,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 9
+							},
+							"end": {
+								"line": 16,
+								"column": 28
+							}
+						},
+						"range": [
+							226,
+							245
+						],
+						"name": "functionDeclaration"
+					}
+				},
+				{
+					"type": "ExportSpecifier",
+					"start": 247,
+					"end": 266,
+					"loc": {
+						"start": {
+							"line": 16,
+							"column": 30
+						},
+						"end": {
+							"line": 16,
+							"column": 49
+						}
+					},
+					"range": [
+						247,
+						266
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 247,
+						"end": 266,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 30
+							},
+							"end": {
+								"line": 16,
+								"column": 49
+							}
+						},
+						"range": [
+							247,
+							266
+						],
+						"name": "variableDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 247,
+						"end": 266,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 30
+							},
+							"end": {
+								"line": 16,
+								"column": 49
+							}
+						},
+						"range": [
+							247,
+							266
+						],
+						"name": "variableDeclaration"
+					}
+				},
+				{
+					"type": "ExportSpecifier",
+					"start": 268,
+					"end": 284,
+					"loc": {
+						"start": {
+							"line": 16,
+							"column": 51
+						},
+						"end": {
+							"line": 16,
+							"column": 67
+						}
+					},
+					"range": [
+						268,
+						284
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 268,
+						"end": 284,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 51
+							},
+							"end": {
+								"line": 16,
+								"column": 67
+							}
+						},
+						"range": [
+							268,
+							284
+						],
+						"name": "ClassDeclaration"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 268,
+						"end": 284,
+						"loc": {
+							"start": {
+								"line": 16,
+								"column": 51
+							},
+							"end": {
+								"line": 16,
+								"column": 67
+							}
+						},
+						"range": [
+							268,
+							284
+						],
+						"name": "ClassDeclaration"
+					}
+				}
+			],
+			"source": null
+		}
+	],
+	"sourceType": "module",
+	"comments": [
+		{
+			"type": "Block",
+			"value": "*\n * Function declaration example.\n ",
+			"start": 0,
+			"end": 40,
+			"range": [
+				0,
+				40
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		},
+		{
+			"type": "Block",
+			"value": "*\n * Class declaration example.\n ",
+			"start": 76,
+			"end": 113,
+			"range": [
+				76,
+				113
+			],
+			"loc": {
+				"start": {
+					"line": 6,
+					"column": 0
+				},
+				"end": {
+					"line": 8,
+					"column": 3
+				}
+			}
+		},
+		{
+			"type": "Block",
+			"value": "*\n * Variable declaration example.\n ",
+			"start": 141,
+			"end": 181,
+			"range": [
+				141,
+				181
+			],
+			"loc": {
+				"start": {
+					"line": 11,
+					"column": 0
+				},
+				"end": {
+					"line": 13,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifiers/code.js b/packages/docgen/src/test/fixtures/named-identifiers/code.js
new file mode 100644
index 00000000000000..6c608a4eea4e7a
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers/code.js
@@ -0,0 +1,16 @@
+/**
+ * Function declaration example.
+ */
+function functionDeclaration() {}
+
+/**
+ * Class declaration example.
+ */
+class ClassDeclaration {}
+
+/**
+ * Variable declaration example.
+ */
+const variableDeclaration = true;
+
+export { functionDeclaration, variableDeclaration, ClassDeclaration };
diff --git a/packages/docgen/src/test/fixtures/named-identifiers/exports.json b/packages/docgen/src/test/fixtures/named-identifiers/exports.json
new file mode 100644
index 00000000000000..eb1e017e311b42
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers/exports.json
@@ -0,0 +1,200 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 217,
+	"end": 287,
+	"loc": {
+		"start": {
+			"line": 16,
+			"column": 0
+		},
+		"end": {
+			"line": 16,
+			"column": 70
+		}
+	},
+	"range": [
+		217,
+		287
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 226,
+			"end": 245,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 9
+				},
+				"end": {
+					"line": 16,
+					"column": 28
+				}
+			},
+			"range": [
+				226,
+				245
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 226,
+				"end": 245,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 9
+					},
+					"end": {
+						"line": 16,
+						"column": 28
+					}
+				},
+				"range": [
+					226,
+					245
+				],
+				"name": "functionDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 226,
+				"end": 245,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 9
+					},
+					"end": {
+						"line": 16,
+						"column": 28
+					}
+				},
+				"range": [
+					226,
+					245
+				],
+				"name": "functionDeclaration"
+			}
+		},
+		{
+			"type": "ExportSpecifier",
+			"start": 247,
+			"end": 266,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 30
+				},
+				"end": {
+					"line": 16,
+					"column": 49
+				}
+			},
+			"range": [
+				247,
+				266
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 247,
+				"end": 266,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 30
+					},
+					"end": {
+						"line": 16,
+						"column": 49
+					}
+				},
+				"range": [
+					247,
+					266
+				],
+				"name": "variableDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 247,
+				"end": 266,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 30
+					},
+					"end": {
+						"line": 16,
+						"column": 49
+					}
+				},
+				"range": [
+					247,
+					266
+				],
+				"name": "variableDeclaration"
+			}
+		},
+		{
+			"type": "ExportSpecifier",
+			"start": 268,
+			"end": 284,
+			"loc": {
+				"start": {
+					"line": 16,
+					"column": 51
+				},
+				"end": {
+					"line": 16,
+					"column": 67
+				}
+			},
+			"range": [
+				268,
+				284
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 268,
+				"end": 284,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 51
+					},
+					"end": {
+						"line": 16,
+						"column": 67
+					}
+				},
+				"range": [
+					268,
+					284
+				],
+				"name": "ClassDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 268,
+				"end": 284,
+				"loc": {
+					"start": {
+						"line": 16,
+						"column": 51
+					},
+					"end": {
+						"line": 16,
+						"column": 67
+					}
+				},
+				"range": [
+					268,
+					284
+				],
+				"name": "ClassDeclaration"
+			}
+		}
+	],
+	"source": null
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-identifiers/ir.json b/packages/docgen/src/test/fixtures/named-identifiers/ir.json
new file mode 100644
index 00000000000000..ab7e9787fa15f4
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-identifiers/ir.json
@@ -0,0 +1 @@
+[{"name":"ClassDeclaration","description":"Class declaration example.","tags":[]},{"name":"functionDeclaration","description":"Function declaration example.","tags":[]},{"name":"variableDeclaration","description":"Variable declaration example.","tags":[]}]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-import-named/code.js b/packages/docgen/src/test/fixtures/named-import-named/code.js
new file mode 100644
index 00000000000000..68e9b4499792c7
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-named/code.js
@@ -0,0 +1,5 @@
+export {
+	functionDeclaration,
+	variableDeclaration,
+	ClassDeclaration,
+} from './named-identifiers';
diff --git a/packages/docgen/src/test/fixtures/named-import-named/exports.json b/packages/docgen/src/test/fixtures/named-import-named/exports.json
new file mode 100644
index 00000000000000..8d3340586992f9
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-named/exports.json
@@ -0,0 +1,220 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 0,
+	"end": 101,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 5,
+			"column": 29
+		}
+	},
+	"range": [
+		0,
+		101
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 10,
+			"end": 29,
+			"loc": {
+				"start": {
+					"line": 2,
+					"column": 1
+				},
+				"end": {
+					"line": 2,
+					"column": 20
+				}
+			},
+			"range": [
+				10,
+				29
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 10,
+				"end": 29,
+				"loc": {
+					"start": {
+						"line": 2,
+						"column": 1
+					},
+					"end": {
+						"line": 2,
+						"column": 20
+					}
+				},
+				"range": [
+					10,
+					29
+				],
+				"name": "functionDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 10,
+				"end": 29,
+				"loc": {
+					"start": {
+						"line": 2,
+						"column": 1
+					},
+					"end": {
+						"line": 2,
+						"column": 20
+					}
+				},
+				"range": [
+					10,
+					29
+				],
+				"name": "functionDeclaration"
+			}
+		},
+		{
+			"type": "ExportSpecifier",
+			"start": 32,
+			"end": 51,
+			"loc": {
+				"start": {
+					"line": 3,
+					"column": 1
+				},
+				"end": {
+					"line": 3,
+					"column": 20
+				}
+			},
+			"range": [
+				32,
+				51
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 32,
+				"end": 51,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 1
+					},
+					"end": {
+						"line": 3,
+						"column": 20
+					}
+				},
+				"range": [
+					32,
+					51
+				],
+				"name": "variableDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 32,
+				"end": 51,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 1
+					},
+					"end": {
+						"line": 3,
+						"column": 20
+					}
+				},
+				"range": [
+					32,
+					51
+				],
+				"name": "variableDeclaration"
+			}
+		},
+		{
+			"type": "ExportSpecifier",
+			"start": 54,
+			"end": 70,
+			"loc": {
+				"start": {
+					"line": 4,
+					"column": 1
+				},
+				"end": {
+					"line": 4,
+					"column": 17
+				}
+			},
+			"range": [
+				54,
+				70
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 54,
+				"end": 70,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 1
+					},
+					"end": {
+						"line": 4,
+						"column": 17
+					}
+				},
+				"range": [
+					54,
+					70
+				],
+				"name": "ClassDeclaration"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 54,
+				"end": 70,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 1
+					},
+					"end": {
+						"line": 4,
+						"column": 17
+					}
+				},
+				"range": [
+					54,
+					70
+				],
+				"name": "ClassDeclaration"
+			}
+		}
+	],
+	"source": {
+		"type": "Literal",
+		"start": 79,
+		"end": 100,
+		"loc": {
+			"start": {
+				"line": 5,
+				"column": 7
+			},
+			"end": {
+				"line": 5,
+				"column": 28
+			}
+		},
+		"range": [
+			79,
+			100
+		],
+		"value": "./named-identifiers",
+		"raw": "'./named-identifiers'"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/ast.json b/packages/docgen/src/test/fixtures/named-import-namespace/ast.json
new file mode 100644
index 00000000000000..f17b43fcef7533
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/ast.json
@@ -0,0 +1,186 @@
+{
+	"type": "Program",
+	"start": 0,
+	"end": 85,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 21
+		}
+	},
+	"range": [
+		0,
+		84
+	],
+	"body": [
+		{
+			"type": "ImportDeclaration",
+			"start": 0,
+			"end": 61,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 1,
+					"column": 61
+				}
+			},
+			"range": [
+				0,
+				61
+			],
+			"specifiers": [
+				{
+					"type": "ImportNamespaceSpecifier",
+					"start": 7,
+					"end": 21,
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 7
+						},
+						"end": {
+							"line": 1,
+							"column": 21
+						}
+					},
+					"range": [
+						7,
+						21
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 12,
+						"end": 21,
+						"loc": {
+							"start": {
+								"line": 1,
+								"column": 12
+							},
+							"end": {
+								"line": 1,
+								"column": 21
+							}
+						},
+						"range": [
+							12,
+							21
+						],
+						"name": "variables"
+					}
+				}
+			],
+			"source": {
+				"type": "Literal",
+				"start": 27,
+				"end": 60,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 27
+					},
+					"end": {
+						"line": 1,
+						"column": 60
+					}
+				},
+				"range": [
+					27,
+					60
+				],
+				"value": "./named-import-namespace-module",
+				"raw": "'./named-import-namespace-module'"
+			}
+		},
+		{
+			"type": "ExportNamedDeclaration",
+			"start": 63,
+			"end": 84,
+			"loc": {
+				"start": {
+					"line": 3,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 21
+				}
+			},
+			"range": [
+				63,
+				84
+			],
+			"declaration": null,
+			"specifiers": [
+				{
+					"type": "ExportSpecifier",
+					"start": 72,
+					"end": 81,
+					"loc": {
+						"start": {
+							"line": 3,
+							"column": 9
+						},
+						"end": {
+							"line": 3,
+							"column": 18
+						}
+					},
+					"range": [
+						72,
+						81
+					],
+					"local": {
+						"type": "Identifier",
+						"start": 72,
+						"end": 81,
+						"loc": {
+							"start": {
+								"line": 3,
+								"column": 9
+							},
+							"end": {
+								"line": 3,
+								"column": 18
+							}
+						},
+						"range": [
+							72,
+							81
+						],
+						"name": "variables"
+					},
+					"exported": {
+						"type": "Identifier",
+						"start": 72,
+						"end": 81,
+						"loc": {
+							"start": {
+								"line": 3,
+								"column": 9
+							},
+							"end": {
+								"line": 3,
+								"column": 18
+							}
+						},
+						"range": [
+							72,
+							81
+						],
+						"name": "variables"
+					}
+				}
+			],
+			"source": null
+		}
+	],
+	"sourceType": "module",
+	"comments": []
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/code.js b/packages/docgen/src/test/fixtures/named-import-namespace/code.js
new file mode 100644
index 00000000000000..a6b9234374d421
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/code.js
@@ -0,0 +1,6 @@
+/**
+ * Internal dependencies
+ */
+import * as variables from './named-import-namespace-module';
+
+export { variables };
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/exports.json b/packages/docgen/src/test/fixtures/named-import-namespace/exports.json
new file mode 100644
index 00000000000000..a2ea24189479d3
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/exports.json
@@ -0,0 +1,82 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 63,
+	"end": 84,
+	"loc": {
+		"start": {
+			"line": 3,
+			"column": 0
+		},
+		"end": {
+			"line": 3,
+			"column": 21
+		}
+	},
+	"range": [
+		63,
+		84
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 72,
+			"end": 81,
+			"loc": {
+				"start": {
+					"line": 3,
+					"column": 9
+				},
+				"end": {
+					"line": 3,
+					"column": 18
+				}
+			},
+			"range": [
+				72,
+				81
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 72,
+				"end": 81,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 9
+					},
+					"end": {
+						"line": 3,
+						"column": 18
+					}
+				},
+				"range": [
+					72,
+					81
+				],
+				"name": "variables"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 72,
+				"end": 81,
+				"loc": {
+					"start": {
+						"line": 3,
+						"column": 9
+					},
+					"end": {
+						"line": 3,
+						"column": 18
+					}
+				},
+				"range": [
+					72,
+					81
+				],
+				"name": "variables"
+			}
+		}
+	],
+	"source": null
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/module-code.js b/packages/docgen/src/test/fixtures/named-import-namespace/module-code.js
new file mode 100644
index 00000000000000..5c29fce8528403
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/module-code.js
@@ -0,0 +1 @@
+export { default as controls } from './default-function-named';
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/module-exports.json b/packages/docgen/src/test/fixtures/named-import-namespace/module-exports.json
new file mode 100644
index 00000000000000..3e467a9404209a
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/module-exports.json
@@ -0,0 +1,102 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 0,
+	"end": 63,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 1,
+			"column": 63
+		}
+	},
+	"range": [
+		0,
+		63
+	],
+	"declaration": null,
+	"specifiers": [
+		{
+			"type": "ExportSpecifier",
+			"start": 9,
+			"end": 28,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 9
+				},
+				"end": {
+					"line": 1,
+					"column": 28
+				}
+			},
+			"range": [
+				9,
+				28
+			],
+			"local": {
+				"type": "Identifier",
+				"start": 9,
+				"end": 16,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 9
+					},
+					"end": {
+						"line": 1,
+						"column": 16
+					}
+				},
+				"range": [
+					9,
+					16
+				],
+				"name": "default"
+			},
+			"exported": {
+				"type": "Identifier",
+				"start": 20,
+				"end": 28,
+				"loc": {
+					"start": {
+						"line": 1,
+						"column": 20
+					},
+					"end": {
+						"line": 1,
+						"column": 28
+					}
+				},
+				"range": [
+					20,
+					28
+				],
+				"name": "controls"
+			}
+		}
+	],
+	"source": {
+		"type": "Literal",
+		"start": 36,
+		"end": 62,
+		"loc": {
+			"start": {
+				"line": 1,
+				"column": 36
+			},
+			"end": {
+				"line": 1,
+				"column": 62
+			}
+		},
+		"range": [
+			36,
+			62
+		],
+		"value": "./default-function-named",
+		"raw": "'./default-function-named'"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-import-namespace/module-ir.json b/packages/docgen/src/test/fixtures/named-import-namespace/module-ir.json
new file mode 100644
index 00000000000000..6488f6035d0179
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-import-namespace/module-ir.json
@@ -0,0 +1 @@
+[{"name":"controls","description":"Function declaration example.","tags":[]}]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-variable/code.js b/packages/docgen/src/test/fixtures/named-variable/code.js
new file mode 100644
index 00000000000000..e89c8a9751394c
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-variable/code.js
@@ -0,0 +1,5 @@
+/**
+ * My declaration example.
+ */
+export const myDeclaration = true;
+
diff --git a/packages/docgen/src/test/fixtures/named-variable/exports.json b/packages/docgen/src/test/fixtures/named-variable/exports.json
new file mode 100644
index 00000000000000..1c5797990ceab8
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-variable/exports.json
@@ -0,0 +1,125 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 35,
+	"end": 69,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 34
+		}
+	},
+	"range": [
+		35,
+		69
+	],
+	"declaration": {
+		"type": "VariableDeclaration",
+		"start": 42,
+		"end": 69,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 7
+			},
+			"end": {
+				"line": 4,
+				"column": 34
+			}
+		},
+		"range": [
+			42,
+			69
+		],
+		"declarations": [
+			{
+				"type": "VariableDeclarator",
+				"start": 48,
+				"end": 68,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 13
+					},
+					"end": {
+						"line": 4,
+						"column": 33
+					}
+				},
+				"range": [
+					48,
+					68
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 48,
+					"end": 61,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 13
+						},
+						"end": {
+							"line": 4,
+							"column": 26
+						}
+					},
+					"range": [
+						48,
+						61
+					],
+					"name": "myDeclaration"
+				},
+				"init": {
+					"type": "Literal",
+					"start": 64,
+					"end": 68,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 29
+						},
+						"end": {
+							"line": 4,
+							"column": 33
+						}
+					},
+					"range": [
+						64,
+						68
+					],
+					"value": true,
+					"raw": "true"
+				}
+			}
+		],
+		"kind": "const"
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/named-variables/code.js b/packages/docgen/src/test/fixtures/named-variables/code.js
new file mode 100644
index 00000000000000..8f56e0aff46e5a
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-variables/code.js
@@ -0,0 +1,6 @@
+/**
+ * My declaration example.
+ */
+export const firstDeclaration = true,
+	secondDeclaration = 42;
+
diff --git a/packages/docgen/src/test/fixtures/named-variables/exports.json b/packages/docgen/src/test/fixtures/named-variables/exports.json
new file mode 100644
index 00000000000000..24d1d1525e9501
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/named-variables/exports.json
@@ -0,0 +1,185 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 35,
+	"end": 97,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 5,
+			"column": 24
+		}
+	},
+	"range": [
+		35,
+		97
+	],
+	"declaration": {
+		"type": "VariableDeclaration",
+		"start": 42,
+		"end": 97,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 7
+			},
+			"end": {
+				"line": 5,
+				"column": 24
+			}
+		},
+		"range": [
+			42,
+			97
+		],
+		"declarations": [
+			{
+				"type": "VariableDeclarator",
+				"start": 48,
+				"end": 71,
+				"loc": {
+					"start": {
+						"line": 4,
+						"column": 13
+					},
+					"end": {
+						"line": 4,
+						"column": 36
+					}
+				},
+				"range": [
+					48,
+					71
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 48,
+					"end": 64,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 13
+						},
+						"end": {
+							"line": 4,
+							"column": 29
+						}
+					},
+					"range": [
+						48,
+						64
+					],
+					"name": "firstDeclaration"
+				},
+				"init": {
+					"type": "Literal",
+					"start": 67,
+					"end": 71,
+					"loc": {
+						"start": {
+							"line": 4,
+							"column": 32
+						},
+						"end": {
+							"line": 4,
+							"column": 36
+						}
+					},
+					"range": [
+						67,
+						71
+					],
+					"value": true,
+					"raw": "true"
+				}
+			},
+			{
+				"type": "VariableDeclarator",
+				"start": 74,
+				"end": 96,
+				"loc": {
+					"start": {
+						"line": 5,
+						"column": 1
+					},
+					"end": {
+						"line": 5,
+						"column": 23
+					}
+				},
+				"range": [
+					74,
+					96
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 74,
+					"end": 91,
+					"loc": {
+						"start": {
+							"line": 5,
+							"column": 1
+						},
+						"end": {
+							"line": 5,
+							"column": 18
+						}
+					},
+					"range": [
+						74,
+						91
+					],
+					"name": "secondDeclaration"
+				},
+				"init": {
+					"type": "Literal",
+					"start": 94,
+					"end": 96,
+					"loc": {
+						"start": {
+							"line": 5,
+							"column": 21
+						},
+						"end": {
+							"line": 5,
+							"column": 23
+						}
+					},
+					"range": [
+						94,
+						96
+					],
+					"value": 42,
+					"raw": "42"
+				}
+			}
+		],
+		"kind": "const"
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * My declaration example.\n ",
+			"start": 0,
+			"end": 34,
+			"range": [
+				0,
+				34
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/namespace-commented/code.js b/packages/docgen/src/test/fixtures/namespace-commented/code.js
new file mode 100644
index 00000000000000..5008b26d090aa5
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace-commented/code.js
@@ -0,0 +1,4 @@
+/**
+ * This comment should be ignored.
+ */
+export * from './namespace-module';
diff --git a/packages/docgen/src/test/fixtures/namespace-commented/exports.json b/packages/docgen/src/test/fixtures/namespace-commented/exports.json
new file mode 100644
index 00000000000000..37166ddd12a5ca
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace-commented/exports.json
@@ -0,0 +1,62 @@
+{
+	"type": "ExportAllDeclaration",
+	"start": 43,
+	"end": 78,
+	"loc": {
+		"start": {
+			"line": 4,
+			"column": 0
+		},
+		"end": {
+			"line": 4,
+			"column": 35
+		}
+	},
+	"range": [
+		43,
+		78
+	],
+	"source": {
+		"type": "Literal",
+		"start": 57,
+		"end": 77,
+		"loc": {
+			"start": {
+				"line": 4,
+				"column": 14
+			},
+			"end": {
+				"line": 4,
+				"column": 34
+			}
+		},
+		"range": [
+			57,
+			77
+		],
+		"value": "./namespace-module",
+		"raw": "'./namespace-module'"
+	},
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * This comment should be ignored.\n ",
+			"start": 0,
+			"end": 42,
+			"range": [
+				0,
+				42
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 3,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/namespace-commented/module-ir.json b/packages/docgen/src/test/fixtures/namespace-commented/module-ir.json
new file mode 100644
index 00000000000000..7798095b482fac
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace-commented/module-ir.json
@@ -0,0 +1,22 @@
+[
+	{
+		"name": "default",
+		"description": "Default variable declaration.",
+		"tags": []
+	},
+	{
+		"name": "MyClass",
+		"description": "Named class.",
+		"tags": []
+	},
+	{
+		"name": "myFunction",
+		"description": "Named function.",
+		"tags": []
+	},
+	{
+		"name": "myVariable",
+		"description": "Named variable.",
+		"tags": []
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/namespace-commented/module.js b/packages/docgen/src/test/fixtures/namespace-commented/module.js
new file mode 100644
index 00000000000000..1ff51c686236af
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace-commented/module.js
@@ -0,0 +1,19 @@
+/**
+ * Named variable.
+ */
+export const myVariable = true;
+
+/**
+ * Named function.
+ */
+export const myFunction = () => {};
+
+/**
+ * Named class.
+ */
+export class MyClass {}
+
+/**
+ * Default variable declaration.
+ */
+export default 42;
diff --git a/packages/docgen/src/test/fixtures/namespace/code.js b/packages/docgen/src/test/fixtures/namespace/code.js
new file mode 100644
index 00000000000000..d2705ea5f8e632
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace/code.js
@@ -0,0 +1 @@
+export * from './namespace-module';
diff --git a/packages/docgen/src/test/fixtures/namespace/exports.json b/packages/docgen/src/test/fixtures/namespace/exports.json
new file mode 100644
index 00000000000000..d6aa32af9ac61e
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace/exports.json
@@ -0,0 +1,40 @@
+{
+	"type": "ExportAllDeclaration",
+	"start": 0,
+	"end": 35,
+	"loc": {
+		"start": {
+			"line": 1,
+			"column": 0
+		},
+		"end": {
+			"line": 1,
+			"column": 35
+		}
+	},
+	"range": [
+		0,
+		35
+	],
+	"source": {
+		"type": "Literal",
+		"start": 14,
+		"end": 34,
+		"loc": {
+			"start": {
+				"line": 1,
+				"column": 14
+			},
+			"end": {
+				"line": 1,
+				"column": 34
+			}
+		},
+		"range": [
+			14,
+			34
+		],
+		"value": "./namespace-module",
+		"raw": "'./namespace-module'"
+	}
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/namespace/module-ir.json b/packages/docgen/src/test/fixtures/namespace/module-ir.json
new file mode 100644
index 00000000000000..7798095b482fac
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace/module-ir.json
@@ -0,0 +1,22 @@
+[
+	{
+		"name": "default",
+		"description": "Default variable declaration.",
+		"tags": []
+	},
+	{
+		"name": "MyClass",
+		"description": "Named class.",
+		"tags": []
+	},
+	{
+		"name": "myFunction",
+		"description": "Named function.",
+		"tags": []
+	},
+	{
+		"name": "myVariable",
+		"description": "Named variable.",
+		"tags": []
+	}
+]
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/namespace/module.js b/packages/docgen/src/test/fixtures/namespace/module.js
new file mode 100644
index 00000000000000..1ff51c686236af
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/namespace/module.js
@@ -0,0 +1,19 @@
+/**
+ * Named variable.
+ */
+export const myVariable = true;
+
+/**
+ * Named function.
+ */
+export const myFunction = () => {};
+
+/**
+ * Named class.
+ */
+export class MyClass {}
+
+/**
+ * Default variable declaration.
+ */
+export default 42;
diff --git a/packages/docgen/src/test/fixtures/tags-function/code.js b/packages/docgen/src/test/fixtures/tags-function/code.js
new file mode 100644
index 00000000000000..8d4261e0f63289
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/tags-function/code.js
@@ -0,0 +1,24 @@
+/**
+ * A function that adds two parameters.
+ *
+ * @deprecated Use native addition instead.
+ * @since v2
+ *
+ * @see addition
+ * @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+ *
+ * @param {number} firstParam The first param to add.
+ * @param {number} secondParam The second param to add.
+ *
+ *  @example
+ *
+ * ```js
+ * const addResult = sum( 1, 3 );
+ * console.log( addResult ); // will yield 4
+ * ```
+ *
+ * @return {number} The result of adding the two params.
+ */
+export const sum = ( firstParam, secondParam ) => {
+	return firstParam + secondParam;
+};
diff --git a/packages/docgen/src/test/fixtures/tags-function/exports.json b/packages/docgen/src/test/fixtures/tags-function/exports.json
new file mode 100644
index 00000000000000..3d0677a818c4b6
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/tags-function/exports.json
@@ -0,0 +1,269 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 521,
+	"end": 609,
+	"loc": {
+		"start": {
+			"line": 22,
+			"column": 0
+		},
+		"end": {
+			"line": 24,
+			"column": 2
+		}
+	},
+	"range": [
+		521,
+		609
+	],
+	"declaration": {
+		"type": "VariableDeclaration",
+		"start": 528,
+		"end": 609,
+		"loc": {
+			"start": {
+				"line": 22,
+				"column": 7
+			},
+			"end": {
+				"line": 24,
+				"column": 2
+			}
+		},
+		"range": [
+			528,
+			609
+		],
+		"declarations": [
+			{
+				"type": "VariableDeclarator",
+				"start": 534,
+				"end": 608,
+				"loc": {
+					"start": {
+						"line": 22,
+						"column": 13
+					},
+					"end": {
+						"line": 24,
+						"column": 1
+					}
+				},
+				"range": [
+					534,
+					608
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 534,
+					"end": 537,
+					"loc": {
+						"start": {
+							"line": 22,
+							"column": 13
+						},
+						"end": {
+							"line": 22,
+							"column": 16
+						}
+					},
+					"range": [
+						534,
+						537
+					],
+					"name": "sum"
+				},
+				"init": {
+					"type": "ArrowFunctionExpression",
+					"start": 540,
+					"end": 608,
+					"loc": {
+						"start": {
+							"line": 22,
+							"column": 19
+						},
+						"end": {
+							"line": 24,
+							"column": 1
+						}
+					},
+					"range": [
+						540,
+						608
+					],
+					"id": null,
+					"generator": false,
+					"expression": false,
+					"async": false,
+					"params": [
+						{
+							"type": "Identifier",
+							"start": 542,
+							"end": 552,
+							"loc": {
+								"start": {
+									"line": 22,
+									"column": 21
+								},
+								"end": {
+									"line": 22,
+									"column": 31
+								}
+							},
+							"range": [
+								542,
+								552
+							],
+							"name": "firstParam"
+						},
+						{
+							"type": "Identifier",
+							"start": 554,
+							"end": 565,
+							"loc": {
+								"start": {
+									"line": 22,
+									"column": 33
+								},
+								"end": {
+									"line": 22,
+									"column": 44
+								}
+							},
+							"range": [
+								554,
+								565
+							],
+							"name": "secondParam"
+						}
+					],
+					"body": {
+						"type": "BlockStatement",
+						"start": 571,
+						"end": 608,
+						"loc": {
+							"start": {
+								"line": 22,
+								"column": 50
+							},
+							"end": {
+								"line": 24,
+								"column": 1
+							}
+						},
+						"range": [
+							571,
+							608
+						],
+						"body": [
+							{
+								"type": "ReturnStatement",
+								"start": 574,
+								"end": 606,
+								"loc": {
+									"start": {
+										"line": 23,
+										"column": 1
+									},
+									"end": {
+										"line": 23,
+										"column": 33
+									}
+								},
+								"range": [
+									574,
+									606
+								],
+								"argument": {
+									"type": "BinaryExpression",
+									"start": 581,
+									"end": 605,
+									"loc": {
+										"start": {
+											"line": 23,
+											"column": 8
+										},
+										"end": {
+											"line": 23,
+											"column": 32
+										}
+									},
+									"range": [
+										581,
+										605
+									],
+									"left": {
+										"type": "Identifier",
+										"start": 581,
+										"end": 591,
+										"loc": {
+											"start": {
+												"line": 23,
+												"column": 8
+											},
+											"end": {
+												"line": 23,
+												"column": 18
+											}
+										},
+										"range": [
+											581,
+											591
+										],
+										"name": "firstParam"
+									},
+									"operator": "+",
+									"right": {
+										"type": "Identifier",
+										"start": 594,
+										"end": 605,
+										"loc": {
+											"start": {
+												"line": 23,
+												"column": 21
+											},
+											"end": {
+												"line": 23,
+												"column": 32
+											}
+										},
+										"range": [
+											594,
+											605
+										],
+										"name": "secondParam"
+									}
+								}
+							}
+						]
+					}
+				}
+			}
+		],
+		"kind": "const"
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * A function that adds two parameters.\n *\n * @deprecated Use native addition instead.\n * @since v2\n *\n * @see addition\n * @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators\n *\n * @param {number} firstParam The first param to add.\n * @param {number} secondParam The second param to add.\n *\n *  @example\n *\n * ```js\n * const addResult = sum( 1, 3 );\n * console.log( addResult ); // will yield 4\n * ```\n *\n * @return {number} The result of adding the two params.\n ",
+			"start": 0,
+			"end": 520,
+			"range": [
+				0,
+				520
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 21,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/fixtures/tags-variable/code.js b/packages/docgen/src/test/fixtures/tags-variable/code.js
new file mode 100644
index 00000000000000..d2d32717a67bcb
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/tags-variable/code.js
@@ -0,0 +1,7 @@
+/**
+ * Constant to document the meaning of life,
+ * the universe and everything else.
+ *
+ * @type {number}
+ */
+export const THE_MEANING = 42;
diff --git a/packages/docgen/src/test/fixtures/tags-variable/exports.json b/packages/docgen/src/test/fixtures/tags-variable/exports.json
new file mode 100644
index 00000000000000..80482610d28e54
--- /dev/null
+++ b/packages/docgen/src/test/fixtures/tags-variable/exports.json
@@ -0,0 +1,125 @@
+{
+	"type": "ExportNamedDeclaration",
+	"start": 111,
+	"end": 141,
+	"loc": {
+		"start": {
+			"line": 7,
+			"column": 0
+		},
+		"end": {
+			"line": 7,
+			"column": 30
+		}
+	},
+	"range": [
+		111,
+		141
+	],
+	"declaration": {
+		"type": "VariableDeclaration",
+		"start": 118,
+		"end": 141,
+		"loc": {
+			"start": {
+				"line": 7,
+				"column": 7
+			},
+			"end": {
+				"line": 7,
+				"column": 30
+			}
+		},
+		"range": [
+			118,
+			141
+		],
+		"declarations": [
+			{
+				"type": "VariableDeclarator",
+				"start": 124,
+				"end": 140,
+				"loc": {
+					"start": {
+						"line": 7,
+						"column": 13
+					},
+					"end": {
+						"line": 7,
+						"column": 29
+					}
+				},
+				"range": [
+					124,
+					140
+				],
+				"id": {
+					"type": "Identifier",
+					"start": 124,
+					"end": 135,
+					"loc": {
+						"start": {
+							"line": 7,
+							"column": 13
+						},
+						"end": {
+							"line": 7,
+							"column": 24
+						}
+					},
+					"range": [
+						124,
+						135
+					],
+					"name": "THE_MEANING"
+				},
+				"init": {
+					"type": "Literal",
+					"start": 138,
+					"end": 140,
+					"loc": {
+						"start": {
+							"line": 7,
+							"column": 27
+						},
+						"end": {
+							"line": 7,
+							"column": 29
+						}
+					},
+					"range": [
+						138,
+						140
+					],
+					"value": 42,
+					"raw": "42"
+				}
+			}
+		],
+		"kind": "const"
+	},
+	"specifiers": [],
+	"source": null,
+	"leadingComments": [
+		{
+			"type": "Block",
+			"value": "*\n * Constant to document the meaning of life,\n * the universe and everything else.\n *\n * @type {number}\n ",
+			"start": 0,
+			"end": 110,
+			"range": [
+				0,
+				110
+			],
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 0
+				},
+				"end": {
+					"line": 6,
+					"column": 3
+				}
+			}
+		}
+	]
+}
\ No newline at end of file
diff --git a/packages/docgen/src/test/formatter-markdown.js b/packages/docgen/src/test/formatter-markdown.js
new file mode 100644
index 00000000000000..cd7e66a12e2678
--- /dev/null
+++ b/packages/docgen/src/test/formatter-markdown.js
@@ -0,0 +1,34 @@
+/**
+ * Internal dependencies.
+ */
+const formatter = require( '../markdown/formatter' );
+
+describe( 'Formatter', () => {
+	it( 'returns markdown', () => {
+		const rootDir = '/home/my-path';
+		const docPath = '/home/my-path/docs';
+		const docs = formatter( rootDir, docPath + '-api.md', [ {
+			path: docPath + '-code.js',
+			description: 'My declaration example.',
+			tags: [
+				{
+					title: 'param',
+					description: 'First declaration parameter.',
+					type: 'number',
+					name: 'firstParam',
+				},
+				{
+					title: 'return',
+					description: 'The result of the declaration.',
+					type: 'number',
+				},
+			],
+			name: 'myDeclaration',
+			lineStart: 1,
+			lineEnd: 2,
+		} ], 'API docs' );
+		expect( docs ).toBe(
+			'# API docs\n\n## myDeclaration\n\n[home/my-path/docs-code.js#L1-L2](home/my-path/docs-code.js#L1-L2)\n\nMy declaration example.\n\n**Parameters**\n\n- **firstParam** `number`: First declaration parameter.\n\n**Returns**\n\n`number` The result of the declaration.\n'
+		);
+	} );
+} );
diff --git a/packages/docgen/src/test/get-export-entries.js b/packages/docgen/src/test/get-export-entries.js
new file mode 100644
index 00000000000000..b1e06f9d145a9c
--- /dev/null
+++ b/packages/docgen/src/test/get-export-entries.js
@@ -0,0 +1,352 @@
+/**
+ * Node dependencies.
+ */
+const fs = require( 'fs' );
+const path = require( 'path' );
+
+/**
+ * Internal dependencies.
+ */
+const getExportEntries = require( '../get-export-entries' );
+
+describe( 'Export entries', function() {
+	it( 'default class (anonymous)', () => {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-class-anonymous/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: '*default*',
+			exportName: 'default',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'default class (named)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-class-named/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'ClassDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'default function (anonymous)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-function-anonymous/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: '*default*',
+			exportName: 'default',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'default function (named)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-function-named/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'myDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'default identifier', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-identifier/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'ClassDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 6,
+			lineEnd: 6,
+		} );
+	} );
+
+	it( 'default import (named)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-import-named/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'fnDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 3,
+			lineEnd: 3,
+		} );
+	} );
+
+	it( 'default import (default)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-import-default/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'fnDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 3,
+			lineEnd: 3,
+		} );
+	} );
+
+	it( 'default named export', function() {
+		const tokens = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-named-export/exports.json' ),
+			'utf-8'
+		);
+		const namedExport = getExportEntries( JSON.parse( tokens )[ 0 ] );
+		expect( namedExport ).toHaveLength( 1 );
+		expect( namedExport[ 0 ] ).toEqual( {
+			localName: 'functionDeclaration',
+			exportName: 'functionDeclaration',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+		const defaultExport = getExportEntries( JSON.parse( tokens )[ 1 ] );
+		expect( defaultExport ).toHaveLength( 1 );
+		expect( defaultExport[ 0 ] ).toEqual( {
+			localName: 'functionDeclaration',
+			exportName: 'default',
+			module: null,
+			lineStart: 6,
+			lineEnd: 6,
+		} );
+	} );
+
+	it( 'default variable', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-variable/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: '*default*',
+			exportName: 'default',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'named class', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-class/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'MyDeclaration',
+			exportName: 'MyDeclaration',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'named default', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-default/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'default',
+			exportName: 'default',
+			module: './named-default-module',
+			lineStart: 1,
+			lineEnd: 1,
+		} );
+	} );
+
+	it( 'named default (exported)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-default-exported/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'default',
+			exportName: 'moduleName',
+			module: './named-default-module',
+			lineStart: 1,
+			lineEnd: 1,
+		} );
+	} );
+
+	it( 'named function', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-function/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'myDeclaration',
+			exportName: 'myDeclaration',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'named identifier', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-identifier/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'myDeclaration',
+			exportName: 'myDeclaration',
+			module: null,
+			lineStart: 6,
+			lineEnd: 6,
+		} );
+		const tokenObject = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-identifier-destructuring/exports.json' ),
+			'utf-8'
+		);
+		const nameObject = getExportEntries( JSON.parse( tokenObject ) );
+		expect( nameObject ).toHaveLength( 1 );
+		expect( nameObject[ 0 ] ).toEqual( {
+			localName: 'someDeclaration',
+			exportName: 'myDeclaration',
+			module: null,
+			lineStart: 6,
+			lineEnd: 6,
+		} );
+	} );
+
+	it( 'named identifiers', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-identifiers/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 3 );
+		expect( name[ 0 ] ).toEqual(
+			{ localName: 'functionDeclaration', exportName: 'functionDeclaration', module: null, lineStart: 16, lineEnd: 16 }
+		);
+		expect( name[ 1 ] ).toEqual(
+			{ localName: 'variableDeclaration', exportName: 'variableDeclaration', module: null, lineStart: 16, lineEnd: 16 },
+		);
+		expect( name[ 2 ] ).toEqual(
+			{ localName: 'ClassDeclaration', exportName: 'ClassDeclaration', module: null, lineStart: 16, lineEnd: 16 },
+		);
+		const tokenIdentifiersAndInline = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-identifiers-and-inline/exports.json' ),
+			'utf-8'
+		);
+		const nameInline0 = getExportEntries( JSON.parse( tokenIdentifiersAndInline )[ 0 ] );
+		expect( nameInline0 ).toHaveLength( 2 );
+		expect( nameInline0[ 0 ] ).toEqual(
+			{ localName: 'functionDeclaration', exportName: 'functionDeclaration', module: null, lineStart: 11, lineEnd: 11 },
+		);
+		expect( nameInline0[ 1 ] ).toEqual(
+			{ localName: 'ClassDeclaration', exportName: 'ClassDeclaration', module: null, lineStart: 11, lineEnd: 11 },
+		);
+		const nameInline1 = getExportEntries( JSON.parse( tokenIdentifiersAndInline )[ 1 ] );
+		expect( nameInline1 ).toHaveLength( 1 );
+		expect( nameInline1[ 0 ] ).toEqual(
+			{ localName: 'variableDeclaration', exportName: 'variableDeclaration', module: null, lineStart: 16, lineEnd: 16 },
+		);
+	} );
+
+	it( 'named import namespace', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-import-namespace/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual(
+			{ localName: 'variables', exportName: 'variables', module: null, lineStart: 3, lineEnd: 3 },
+		);
+	} );
+
+	it( 'named variable', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-variable/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: 'myDeclaration',
+			exportName: 'myDeclaration',
+			module: null,
+			lineStart: 4,
+			lineEnd: 4,
+		} );
+	} );
+
+	it( 'named variables', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/named-variables/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 2 );
+		expect( name[ 0 ] ).toEqual(
+			{ localName: 'firstDeclaration', exportName: 'firstDeclaration', module: null, lineStart: 4, lineEnd: 5 },
+		);
+		expect( name[ 1 ] ).toEqual(
+			{ localName: 'secondDeclaration', exportName: 'secondDeclaration', module: null, lineStart: 4, lineEnd: 5 },
+		);
+	} );
+
+	it( 'namespace (*)', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/namespace/exports.json' ),
+			'utf-8'
+		);
+		const name = getExportEntries( JSON.parse( token ) );
+		expect( name ).toHaveLength( 1 );
+		expect( name[ 0 ] ).toEqual( {
+			localName: '*',
+			exportName: null,
+			module: './namespace-module',
+			lineStart: 1,
+			lineEnd: 1,
+		} );
+	} );
+} );
diff --git a/packages/docgen/src/test/get-intermediate-representation.js b/packages/docgen/src/test/get-intermediate-representation.js
new file mode 100644
index 00000000000000..53cb937a2be518
--- /dev/null
+++ b/packages/docgen/src/test/get-intermediate-representation.js
@@ -0,0 +1,454 @@
+/**
+ * Node dependencies.
+ */
+const fs = require( 'fs' );
+const path = require( 'path' );
+
+/**
+ * Internal dependencies.
+ */
+const getIntermediateRepresentation = require( '../get-intermediate-representation' );
+
+describe( 'Intermediate Representation', function() {
+	it( 'undocumented', function() {
+		const token = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-undocumented-nocomments/exports.json' ),
+			'utf-8'
+		);
+		const ir = getIntermediateRepresentation( null, JSON.parse( token ) );
+		expect( ir ).toHaveLength( 1 );
+		expect( ir[ 0 ] ).toEqual( {
+			path: null,
+			name: 'default',
+			description: 'Undocumented declaration.',
+			tags: [],
+			lineStart: 3,
+			lineEnd: 3,
+		} );
+		const tokenOneliner = fs.readFileSync(
+			path.join( __dirname, './fixtures/default-undocumented-oneliner/exports.json' ),
+			'utf-8'
+		);
+		const irOneliner = getIntermediateRepresentation( null, JSON.parse( tokenOneliner ) );
+		expect( irOneliner ).toHaveLength( 1 );
+		expect( irOneliner[ 0 ] ).toEqual( {
+			path: null,
+			name: 'default',
+			description: 'Undocumented declaration.',
+			tags: [],
+			lineStart: 2,
+			lineEnd: 2,
+		} );
+	} );
+
+	describe( 'JSDoc in export statement', function() {
+		it( 'default export', function() {
+			const tokenClassAnonymous = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-class-anonymous/exports.json' ),
+				'utf-8'
+			);
+			const irClassAnonymous = getIntermediateRepresentation( null, JSON.parse( tokenClassAnonymous ) );
+			expect( irClassAnonymous ).toHaveLength( 1 );
+			expect( irClassAnonymous[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Class declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenClassNamed = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-class-named/exports.json' ),
+				'utf-8'
+			);
+			const irClassNamed = getIntermediateRepresentation( null, JSON.parse( tokenClassNamed ) );
+			expect( irClassNamed ).toHaveLength( 1 );
+			expect( irClassNamed[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Class declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenFnAnonymous = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-function-anonymous/exports.json' ),
+				'utf-8'
+			);
+			const irFnAnonymous = getIntermediateRepresentation( null, JSON.parse( tokenFnAnonymous ) );
+			expect( irFnAnonymous ).toHaveLength( 1 );
+			expect( irFnAnonymous[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Function declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenFnNamed = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-function-named/exports.json' ),
+				'utf-8'
+			);
+			const irFnNamed = getIntermediateRepresentation( null, JSON.parse( tokenFnNamed ) );
+			expect( irFnNamed[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Function declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenVariable = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-variable/exports.json' ),
+				'utf-8'
+			);
+			const irVar = getIntermediateRepresentation( null, JSON.parse( tokenVariable ) );
+			expect( irVar[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Variable declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+		} );
+		it( 'named export', function() {
+			const tokenClass = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-class/exports.json' ),
+				'utf-8'
+			);
+			const irNamedClass = getIntermediateRepresentation( null, JSON.parse( tokenClass ) );
+			expect( irNamedClass ).toHaveLength( 1 );
+			expect( irNamedClass[ 0 ] ).toEqual( {
+				path: null,
+				name: 'MyDeclaration',
+				description: 'My declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenFn = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-function/exports.json' ),
+				'utf-8'
+			);
+			const irNamedFn = getIntermediateRepresentation( null, JSON.parse( tokenFn ) );
+			expect( irNamedFn ).toHaveLength( 1 );
+			expect( irNamedFn[ 0 ] ).toEqual( {
+				path: null,
+				name: 'myDeclaration',
+				description: 'My declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenVariable = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-variable/exports.json' ),
+				'utf-8'
+			);
+			const irNamedVar = getIntermediateRepresentation( null, JSON.parse( tokenVariable ) );
+			expect( irNamedVar ).toHaveLength( 1 );
+			expect( irNamedVar[ 0 ] ).toEqual( {
+				path: null,
+				name: 'myDeclaration',
+				description: 'My declaration example.',
+				tags: [],
+				lineStart: 4,
+				lineEnd: 4,
+			} );
+			const tokenVariables = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-variables/exports.json' ),
+				'utf-8'
+			);
+			const irNamedVars = getIntermediateRepresentation( null, JSON.parse( tokenVariables ) );
+			expect( irNamedVars ).toHaveLength( 2 );
+			expect( irNamedVars[ 0 ] ).toEqual(
+				{ path: null, name: 'firstDeclaration', description: 'My declaration example.', tags: [], lineStart: 4, lineEnd: 5 },
+			);
+			expect( irNamedVars[ 1 ] ).toEqual(
+				{ path: null, name: 'secondDeclaration', description: 'My declaration example.', tags: [], lineStart: 4, lineEnd: 5 },
+			);
+		} );
+	} );
+
+	describe( 'JSDoc in same file', function() {
+		it( 'default export', function() {
+			const token = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-identifier/exports.json' ),
+				'utf-8'
+			);
+			const ast = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-identifier/ast.json' ),
+				'utf-8'
+			);
+			const irDefaultId = getIntermediateRepresentation( null, JSON.parse( token ), JSON.parse( ast ) );
+			expect( irDefaultId ).toHaveLength( 1 );
+			expect( irDefaultId[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Class declaration example.',
+				tags: [],
+				lineStart: 6,
+				lineEnd: 6,
+			} );
+			const namedExport = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-named-export/exports.json' ),
+				'utf-8'
+			);
+			const namedExportAST = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-named-export/ast.json' ),
+				'utf-8'
+			);
+			const irDefaultNamed0 = getIntermediateRepresentation( null, JSON.parse( namedExport )[ 0 ], JSON.parse( namedExportAST ) );
+			expect( irDefaultNamed0 ).toHaveLength( 1 );
+			expect( irDefaultNamed0[ 0 ] ).toEqual(
+				{ path: null, name: 'functionDeclaration', description: 'Function declaration example.', tags: [], lineStart: 4, lineEnd: 4 }
+			);
+			const irDefaultNamed1 = getIntermediateRepresentation( null, JSON.parse( namedExport )[ 1 ], JSON.parse( namedExportAST ) );
+			expect( irDefaultNamed1[ 0 ] ).toEqual(
+				{ path: null, name: 'default', description: 'Function declaration example.', tags: [], lineStart: 6, lineEnd: 6 }
+			);
+		} );
+
+		it( 'named export', function() {
+			const token = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifier/exports.json' ),
+				'utf-8'
+			);
+			const ast = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifier/ast.json' ),
+				'utf-8'
+			);
+			const irNamedId = getIntermediateRepresentation( null, JSON.parse( token ), JSON.parse( ast ) );
+			expect( irNamedId ).toHaveLength( 1 );
+			expect( irNamedId[ 0 ] ).toEqual( {
+				path: null,
+				name: 'myDeclaration',
+				description: 'My declaration example.',
+				tags: [],
+				lineStart: 6,
+				lineEnd: 6,
+			} );
+			const tokenObject = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifier-destructuring/exports.json' ),
+				'utf-8'
+			);
+			const astObject = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifier-destructuring/ast.json' ),
+				'utf-8'
+			);
+			const irNamedIdDestructuring = getIntermediateRepresentation( null, JSON.parse( tokenObject ), JSON.parse( astObject ) );
+			expect( irNamedIdDestructuring ).toHaveLength( 1 );
+			expect( irNamedIdDestructuring[ 0 ] ).toEqual( {
+				path: null,
+				name: 'myDeclaration',
+				description: 'My declaration example.',
+				tags: [],
+				lineStart: 6,
+				lineEnd: 6,
+			} );
+			const tokens = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifiers/exports.json' ),
+				'utf-8'
+			);
+			const asts = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifiers/ast.json' ),
+				'utf-8'
+			);
+			const irIds = getIntermediateRepresentation( null, JSON.parse( tokens ), JSON.parse( asts ) );
+			expect( irIds ).toHaveLength( 3 );
+			expect( irIds[ 0 ] ).toEqual(
+				{ path: null, name: 'functionDeclaration', description: 'Function declaration example.', tags: [], lineStart: 16, lineEnd: 16 }
+			);
+			expect( irIds[ 1 ] ).toEqual(
+				{ path: null, name: 'variableDeclaration', description: 'Variable declaration example.', tags: [], lineStart: 16, lineEnd: 16 }
+			);
+			expect( irIds[ 2 ] ).toEqual(
+				{ path: null, name: 'ClassDeclaration', description: 'Class declaration example.', tags: [], lineStart: 16, lineEnd: 16 }
+			);
+			const foo = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifiers-and-inline/exports.json' ),
+				'utf-8'
+			);
+			const bar = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifiers-and-inline/ast.json' ),
+				'utf-8'
+			);
+			const irIdInline0 = getIntermediateRepresentation( null, JSON.parse( foo )[ 0 ], JSON.parse( bar ) );
+			expect( irIdInline0 ).toHaveLength( 2 );
+			expect( irIdInline0[ 0 ] ).toEqual(
+				{ path: null, name: 'functionDeclaration', description: 'Function declaration example.', tags: [], lineStart: 11, lineEnd: 11 }
+			);
+			expect( irIdInline0[ 1 ] ).toEqual(
+				{ path: null, name: 'ClassDeclaration', description: 'Class declaration example.', tags: [], lineStart: 11, lineEnd: 11 }
+			);
+			const irIdInline1 = getIntermediateRepresentation( null, JSON.parse( foo )[ 1 ], JSON.parse( bar ) );
+			expect( irIdInline1[ 0 ] ).toEqual(
+				{ path: null, name: 'variableDeclaration', description: 'Variable declaration example.', tags: [], lineStart: 16, lineEnd: 16 }
+			);
+		} );
+	} );
+
+	describe( 'JSDoc in module dependency', function() {
+		it( 'named export', function() {
+			const tokenImportNamed = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-import-named/exports.json' ),
+				'utf-8'
+			);
+			const getModuleImportNamed = () => JSON.parse( fs.readFileSync(
+				path.join( __dirname, './fixtures/named-identifiers/ir.json' ),
+				'utf-8'
+			) );
+			const ir = getIntermediateRepresentation( null, JSON.parse( tokenImportNamed ), { body: [] }, getModuleImportNamed );
+			expect( ir ).toHaveLength( 3 );
+			expect( ir[ 0 ] ).toEqual(
+				{ path: null, name: 'functionDeclaration', description: 'Function declaration example.', tags: [], lineStart: 2, lineEnd: 2 }
+			);
+			expect( ir[ 1 ] ).toEqual(
+				{ path: null, name: 'variableDeclaration', description: 'Variable declaration example.', tags: [], lineStart: 3, lineEnd: 3 }
+			);
+			expect( ir[ 2 ] ).toEqual(
+				{ path: null, name: 'ClassDeclaration', description: 'Class declaration example.', tags: [], lineStart: 4, lineEnd: 4 }
+
+			);
+		} );
+
+		it( 'named default export', function() {
+			const tokenDefault = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-default/exports.json' ),
+				'utf-8'
+			);
+			const getModule = () => JSON.parse( fs.readFileSync(
+				path.join( __dirname, './fixtures/named-default/module-ir.json' ),
+				'utf-8'
+			) );
+			const irNamedDefault = getIntermediateRepresentation( null, JSON.parse( tokenDefault ), { body: [] }, getModule );
+			expect( irNamedDefault ).toHaveLength( 1 );
+			expect( irNamedDefault[ 0 ] ).toEqual(
+				{ path: null, name: 'default', description: 'Module declaration.', tags: [], lineStart: 1, lineEnd: 1 }
+			);
+			const tokenDefaultExported = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-default-exported/exports.json' ),
+				'utf-8'
+			);
+			const irNamedDefaultExported = getIntermediateRepresentation( null, JSON.parse( tokenDefaultExported ), { body: [] }, getModule );
+			expect( irNamedDefaultExported ).toHaveLength( 1 );
+			expect( irNamedDefaultExported[ 0 ] ).toEqual(
+				{ path: null, name: 'moduleName', description: 'Module declaration.', tags: [], lineStart: 1, lineEnd: 1 }
+			);
+		} );
+
+		it( 'namespace export', function() {
+			const token = fs.readFileSync(
+				path.join( __dirname, './fixtures/namespace/exports.json' ),
+				'utf-8'
+			);
+			const getModule = () => JSON.parse( fs.readFileSync(
+				path.join( __dirname, './fixtures/namespace/module-ir.json' ),
+				'utf-8'
+			) );
+			const irNamespace = getIntermediateRepresentation( null, JSON.parse( token ), { body: [] }, getModule );
+			expect( irNamespace ).toHaveLength( 3 );
+			expect( irNamespace[ 0 ] ).toEqual(
+				{ path: null, name: 'MyClass', description: 'Named class.', tags: [], lineStart: 1, lineEnd: 1 }
+			);
+			expect( irNamespace[ 1 ] ).toEqual(
+				{ path: null, name: 'myFunction', description: 'Named function.', tags: [], lineStart: 1, lineEnd: 1 }
+			);
+			expect( irNamespace[ 2 ] ).toEqual(
+				{ path: null, name: 'myVariable', description: 'Named variable.', tags: [], lineStart: 1, lineEnd: 1 }
+			);
+			const tokenCommented = fs.readFileSync(
+				path.join( __dirname, './fixtures/namespace-commented/exports.json' ),
+				'utf-8'
+			);
+			const irNamespaceCommented = getIntermediateRepresentation( null, JSON.parse( tokenCommented ), { body: [] }, getModule );
+			expect( irNamespaceCommented ).toHaveLength( 3 );
+			expect( irNamespaceCommented[ 0 ] ).toEqual(
+				{ path: null, name: 'MyClass', description: 'Named class.', tags: [], lineStart: 4, lineEnd: 4 }
+			);
+			expect( irNamespaceCommented[ 1 ] ).toEqual(
+				{ path: null, name: 'myFunction', description: 'Named function.', tags: [], lineStart: 4, lineEnd: 4 }
+			);
+			expect( irNamespaceCommented[ 2 ] ).toEqual(
+				{ path: null, name: 'myVariable', description: 'Named variable.', tags: [], lineStart: 4, lineEnd: 4 }
+			);
+		} );
+	} );
+
+	describe( 'JSDoc in module dependency through import', function() {
+		it( 'default export', function() {
+			const tokenDefault = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-default/exports.json' ),
+				'utf-8'
+			);
+			const astDefault = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-default/ast.json' ),
+				'utf-8'
+			);
+			const getModuleDefault = () => JSON.parse( fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-default/module-ir.json' ),
+				'utf-8'
+			) );
+			const irDefault = getIntermediateRepresentation( null, JSON.parse( tokenDefault ), JSON.parse( astDefault ), getModuleDefault );
+			expect( irDefault ).toHaveLength( 1 );
+			expect( irDefault[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Function declaration.',
+				tags: [],
+				lineStart: 3,
+				lineEnd: 3,
+			} );
+			const tokenNamed = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-named/exports.json' ),
+				'utf-8'
+			);
+			const astNamed = fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-named/ast.json' ),
+				'utf-8'
+			);
+			const getModuleNamed = () => JSON.parse( fs.readFileSync(
+				path.join( __dirname, './fixtures/default-import-named/module-ir.json' ),
+				'utf-8'
+			) );
+			const irNamed = getIntermediateRepresentation( null, JSON.parse( tokenNamed ), JSON.parse( astNamed ), getModuleNamed );
+			expect( irNamed ).toHaveLength( 1 );
+			expect( irNamed[ 0 ] ).toEqual( {
+				path: null,
+				name: 'default',
+				description: 'Function declaration.',
+				tags: [],
+				lineStart: 3,
+				lineEnd: 3,
+			} );
+		} );
+
+		it( 'named export', function() {
+			const tokenImportNamespace = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-import-namespace/exports.json' ),
+				'utf-8'
+			);
+			const astImportNamespace = fs.readFileSync(
+				path.join( __dirname, './fixtures/named-import-namespace/ast.json' ),
+				'utf-8'
+			);
+			const getModuleImportNamespace = ( filePath ) => {
+				if ( filePath === './named-import-namespace-module' ) {
+					return JSON.parse( fs.readFileSync(
+						path.join( __dirname, './fixtures/named-import-namespace/module-ir.json' ),
+						'utf-8'
+					) );
+				}
+				return JSON.parse( fs.readFileSync(
+					path.join( __dirname, './fixtures/default-function/ir.json' ),
+					'utf-8'
+				) );
+			};
+			const ir = getIntermediateRepresentation( null, JSON.parse( tokenImportNamespace ), JSON.parse( astImportNamespace ), getModuleImportNamespace );
+			expect( ir ).toHaveLength( 1 );
+			expect( ir[ 0 ] ).toEqual(
+				{ path: null, name: 'variables', description: 'Undocumented declaration.', tags: [], lineStart: 3, lineEnd: 3 }
+			);
+		} );
+	} );
+} );
diff --git a/packages/docgen/src/test/get-jsdoc-from-token.js b/packages/docgen/src/test/get-jsdoc-from-token.js
new file mode 100644
index 00000000000000..335d63e7935ac8
--- /dev/null
+++ b/packages/docgen/src/test/get-jsdoc-from-token.js
@@ -0,0 +1,78 @@
+/**
+ * Internal dependencies.
+ */
+const getJSDocFromToken = require( '../get-jsdoc-from-token' );
+
+describe( 'JSDoc', () => {
+	it( 'extracts description and tags', () => {
+		expect(
+			getJSDocFromToken( {
+				leadingComments: [ {
+					value: '*\n * A function that adds two parameters.\n *\n * @deprecated Use native addition instead.\n * @since v2\n *\n * @see addition\n * @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators\n *\n * @param {number} firstParam The first param to add.\n * @param {number} secondParam The second param to add.\n *\n *  @example\n *\n * ```js\n * const addResult = sum( 1, 3 );\n * console.log( addResult ); // will yield 4\n * ```\n *\n * @return {number} The result of adding the two params.\n ',
+				} ],
+			} )
+		).toEqual(
+			{
+				description: 'A function that adds two parameters.',
+				tags: [
+					{
+						title: 'deprecated',
+						description: 'Use native addition instead.',
+					},
+					{
+						title: 'since',
+						description: 'v2',
+					},
+					{
+						title: 'see',
+						description: 'addition',
+					},
+					{
+						title: 'link',
+						description: 'https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators',
+					},
+					{
+						title: 'param',
+						description: 'The first param to add.',
+						type: 'number',
+						name: 'firstParam',
+					},
+					{
+						title: 'param',
+						description: 'The second param to add.',
+						type: 'number',
+						name: 'secondParam',
+					},
+					{
+						title: 'example',
+						description: '```js\nconst addResult = sum( 1, 3 );\nconsole.log( addResult ); // will yield 4\n```',
+					},
+					{
+						title: 'return',
+						description: 'The result of adding the two params.',
+						type: 'number',
+					},
+				],
+			}
+		);
+
+		expect(
+			getJSDocFromToken( {
+				leadingComments: [ {
+					value: '*\n * Constant to document the meaning of life,\n * the universe and everything else.\n *\n * @type {number}\n ',
+				} ],
+			} )
+		).toEqual(
+			{
+				description: 'Constant to document the meaning of life,\nthe universe and everything else.',
+				tags: [
+					{
+						title: 'type',
+						description: null,
+						type: 'number',
+					},
+				],
+			}
+		);
+	} );
+} );
diff --git a/packages/docgen/src/test/get-type-as-string.js b/packages/docgen/src/test/get-type-as-string.js
new file mode 100644
index 00000000000000..6ba09acd33df18
--- /dev/null
+++ b/packages/docgen/src/test/get-type-as-string.js
@@ -0,0 +1,108 @@
+/**
+ * Internal dependencies.
+ */
+const getType = require( '../get-type-as-string' );
+
+describe( 'getType from JSDoc', () => {
+	it( 'NameExpression', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'NameExpression',
+				name: 'Array',
+			},
+			name: 'paramName',
+		} );
+		expect( type ).toBe( 'Array' );
+	} );
+
+	it( 'AllLiteral', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'AllLiteral',
+			},
+			name: 'paramName',
+		} );
+		expect( type ).toBe( '*' );
+	} );
+
+	it( 'Applications', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'TypeApplication',
+				expression: {
+					type: 'NameExpression',
+					name: 'Array',
+				},
+				applications: [
+					{
+						type: 'NameExpression',
+						name: 'Object',
+					},
+					{
+						type: 'NameExpression',
+						name: 'String',
+					},
+				],
+			},
+		} );
+		expect( type ).toBe( 'Array<Object,String>' );
+	} );
+
+	it( 'NullableType', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'NullableType',
+				expression: {
+					type: 'NameExpression',
+					name: 'string',
+				},
+				prefix: true,
+			},
+			name: 'paramName',
+		} );
+		expect( type ).toBe( '?string' );
+	} );
+
+	it( 'RestType', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'RestType',
+				expression: {
+					type: 'NameExpression',
+					name: 'Function',
+				},
+			},
+			name: 'paramName',
+		} );
+		expect( type ).toBe( '...Function' );
+	} );
+
+	it( 'RestType with UnionType', () => {
+		const type = getType( {
+			title: 'param',
+			description: 'description',
+			type: {
+				type: 'RestType',
+				expression: {
+					type: 'UnionType',
+					elements: [
+						{ type: 'NameExpression', name: 'Object' },
+						{ type: 'NameExpression', name: 'string' },
+					],
+				},
+			},
+			name: 'paramName',
+		} );
+		expect( type ).toBe( '...(Object|string)' );
+	} );
+} );
diff --git a/packages/e2e-test-utils/README.md b/packages/e2e-test-utils/README.md
index 6743b099d8abb1..4958201be72972 100644
--- a/packages/e2e-test-utils/README.md
+++ b/packages/e2e-test-utils/README.md
@@ -12,6 +12,8 @@ npm install @wordpress/e2e-test-utils --save-dev
 
 ## API
 
+<!-- START TOKEN(Autogenerated API docs) -->
+
 ### activatePlugin
 
 [src/index.js#L1-L1](src/index.js#L1-L1)
@@ -76,7 +78,7 @@ Clicks on More Menu item, searches for the button with the text provided and cli
 
 ### createEmbeddingMatcher
 
-[src/index.js#L45-L45](src/index.js#L45-L45)
+[src/index.js#L46-L46](src/index.js#L46-L46)
 
 Creates a function to determine if a request is embedding a certain URL.
 
@@ -90,7 +92,7 @@ Creates a function to determine if a request is embedding a certain URL.
 
 ### createJSONResponse
 
-[src/index.js#L45-L45](src/index.js#L45-L45)
+[src/index.js#L46-L46](src/index.js#L46-L46)
 
 Respond to a request with a JSON response.
 
@@ -129,7 +131,7 @@ Creates new URL by parsing base URL, WPPath and query string.
 
 ### createURLMatcher
 
-[src/index.js#L45-L45](src/index.js#L45-L45)
+[src/index.js#L46-L46](src/index.js#L46-L46)
 
 Creates a function to determine if a request is calling a URL with the substring present.
 
@@ -180,7 +182,7 @@ Verifies that the edit post sidebar is opened, and if it is not, opens it.
 
 `Promise` Promise resolving once the edit post sidebar is opened.
 
-### findSidebarPanelWithTitle
+### findSidebarPanelToggleButtonWithTitle
 
 [src/index.js#L15-L15](src/index.js#L15-L15)
 
@@ -194,10 +196,24 @@ Finds a sidebar panel with the provided title.
 
 `?ElementHandle` Object that represents an in-page DOM element.
 
-### getAllBlocks
+### findSidebarPanelWithTitle
 
 [src/index.js#L16-L16](src/index.js#L16-L16)
 
+Finds the button responsible for toggling the sidebar panel with the provided title.
+
+**Parameters**
+
+-   **panelTitle** `string`: The name of sidebar panel.
+
+**Returns**
+
+`?ElementHandle` Object that represents an in-page DOM element.
+
+### getAllBlocks
+
+[src/index.js#L17-L17](src/index.js#L17-L17)
+
 Returns an array with all blocks; Equivalent to calling wp.data.select( 'core/editor' ).getBlocks();
 
 **Returns**
@@ -206,7 +222,7 @@ Returns an array with all blocks; Equivalent to calling wp.data.select( 'core/ed
 
 ### getAvailableBlockTransforms
 
-[src/index.js#L17-L17](src/index.js#L17-L17)
+[src/index.js#L18-L18](src/index.js#L18-L18)
 
 Returns an array of strings with all block titles,
 that the current selected block can be transformed into.
@@ -217,7 +233,7 @@ that the current selected block can be transformed into.
 
 ### getEditedPostContent
 
-[src/index.js#L18-L18](src/index.js#L18-L18)
+[src/index.js#L19-L19](src/index.js#L19-L19)
 
 Returns a promise which resolves with the edited post content (HTML string).
 
@@ -227,7 +243,7 @@ Returns a promise which resolves with the edited post content (HTML string).
 
 ### hasBlockSwitcher
 
-[src/index.js#L19-L19](src/index.js#L19-L19)
+[src/index.js#L20-L20](src/index.js#L20-L20)
 
 Returns a boolean indicating if the current selected block has a block switcher or not.
 
@@ -237,7 +253,7 @@ Returns a boolean indicating if the current selected block has a block switcher
 
 ### insertBlock
 
-[src/index.js#L20-L20](src/index.js#L20-L20)
+[src/index.js#L21-L21](src/index.js#L21-L21)
 
 Opens the inserter, searches for the given term, then selects the first
 result that appears.
@@ -249,7 +265,7 @@ result that appears.
 
 ### installPlugin
 
-[src/index.js#L21-L21](src/index.js#L21-L21)
+[src/index.js#L22-L22](src/index.js#L22-L22)
 
 Installs a plugin from the WP.org repository.
 
@@ -260,7 +276,7 @@ Installs a plugin from the WP.org repository.
 
 ### isCurrentURL
 
-[src/index.js#L22-L22](src/index.js#L22-L22)
+[src/index.js#L23-L23](src/index.js#L23-L23)
 
 Checks if current URL is a WordPress path.
 
@@ -275,7 +291,7 @@ Checks if current URL is a WordPress path.
 
 ### loginUser
 
-[src/index.js#L23-L23](src/index.js#L23-L23)
+[src/index.js#L24-L24](src/index.js#L24-L24)
 
 Performs log in with specified username and password.
 
@@ -286,7 +302,7 @@ Performs log in with specified username and password.
 
 ### mockOrTransform
 
-[src/index.js#L45-L45](src/index.js#L45-L45)
+[src/index.js#L46-L46](src/index.js#L46-L46)
 
 Mocks a request with the supplied mock object, or allows it to run with an optional transform, based on the
 deserialised JSON response for the request.
@@ -303,26 +319,26 @@ deserialised JSON response for the request.
 
 ### observeFocusLoss
 
-[src/index.js#L24-L24](src/index.js#L24-L24)
+[src/index.js#L25-L25](src/index.js#L25-L25)
 
 Binds to the document on page load which throws an error if a `focusout`
 event occurs without a related target (i.e. focus loss).
 
 ### openDocumentSettingsSidebar
 
-[src/index.js#L25-L25](src/index.js#L25-L25)
+[src/index.js#L26-L26](src/index.js#L26-L26)
 
 Clicks on the button in the header which opens Document Settings sidebar when it is closed.
 
 ### openPublishPanel
 
-[src/index.js#L26-L26](src/index.js#L26-L26)
+[src/index.js#L27-L27](src/index.js#L27-L27)
 
 Opens the publish panel.
 
 ### pressKeyTimes
 
-[src/index.js#L27-L27](src/index.js#L27-L27)
+[src/index.js#L28-L28](src/index.js#L28-L28)
 
 Presses the given keyboard key a number of times in sequence.
 
@@ -337,7 +353,7 @@ Presses the given keyboard key a number of times in sequence.
 
 ### pressKeyWithModifier
 
-[src/index.js#L28-L28](src/index.js#L28-L28)
+[src/index.js#L29-L29](src/index.js#L29-L29)
 
 Performs a key press with modifier (Shift, Control, Meta, Alt), where each modifier
 is normalized to platform-specific modifier.
@@ -349,7 +365,7 @@ is normalized to platform-specific modifier.
 
 ### publishPost
 
-[src/index.js#L29-L29](src/index.js#L29-L29)
+[src/index.js#L30-L30](src/index.js#L30-L30)
 
 Publishes the post, resolving once the request is complete (once a notice
 is displayed).
@@ -360,7 +376,7 @@ is displayed).
 
 ### publishPostWithPrePublishChecksDisabled
 
-[src/index.js#L30-L30](src/index.js#L30-L30)
+[src/index.js#L31-L31](src/index.js#L31-L31)
 
 Publishes the post without the pre-publish checks,
 resolving once the request is complete (once a notice is displayed).
@@ -371,7 +387,7 @@ resolving once the request is complete (once a notice is displayed).
 
 ### saveDraft
 
-[src/index.js#L31-L31](src/index.js#L31-L31)
+[src/index.js#L32-L32](src/index.js#L32-L32)
 
 Saves the post as a draft, resolving once the request is complete (once the
 "Saved" indicator is displayed).
@@ -382,7 +398,7 @@ Saves the post as a draft, resolving once the request is complete (once the
 
 ### searchForBlock
 
-[src/index.js#L32-L32](src/index.js#L32-L32)
+[src/index.js#L33-L33](src/index.js#L33-L33)
 
 Search for block in the global inserter
 
@@ -392,7 +408,7 @@ Search for block in the global inserter
 
 ### selectBlockByClientId
 
-[src/index.js#L33-L33](src/index.js#L33-L33)
+[src/index.js#L34-L34](src/index.js#L34-L34)
 
 Given the clientId of a block, selects the block on the editor.
 
@@ -402,7 +418,7 @@ Given the clientId of a block, selects the block on the editor.
 
 ### setBrowserViewport
 
-[src/index.js#L34-L34](src/index.js#L34-L34)
+[src/index.js#L35-L35](src/index.js#L35-L35)
 
 Sets browser viewport to specified type.
 
@@ -412,7 +428,7 @@ Sets browser viewport to specified type.
 
 ### setPostContent
 
-[src/index.js#L35-L35](src/index.js#L35-L35)
+[src/index.js#L36-L36](src/index.js#L36-L36)
 
 Sets code editor content
 
@@ -426,7 +442,7 @@ Sets code editor content
 
 ### setUpResponseMocking
 
-[src/index.js#L45-L45](src/index.js#L45-L45)
+[src/index.js#L46-L46](src/index.js#L46-L46)
 
 Sets up mock checks and responses. Accepts a list of mock settings with the following properties:
 
@@ -457,7 +473,7 @@ If none of the mock settings match the request, the request is allowed to contin
 
 ### switchEditorModeTo
 
-[src/index.js#L36-L36](src/index.js#L36-L36)
+[src/index.js#L37-L37](src/index.js#L37-L37)
 
 Switches editor mode.
 
@@ -467,21 +483,21 @@ Switches editor mode.
 
 ### switchUserToAdmin
 
-[src/index.js#L37-L37](src/index.js#L37-L37)
+[src/index.js#L38-L38](src/index.js#L38-L38)
 
 Switches the current user to the admin user (if the user
 running the test is not already the admin user).
 
 ### switchUserToTest
 
-[src/index.js#L38-L38](src/index.js#L38-L38)
+[src/index.js#L39-L39](src/index.js#L39-L39)
 
 Switches the current user to whichever user we should be
 running the tests as (if we're not already that user).
 
 ### toggleScreenOption
 
-[src/index.js#L39-L39](src/index.js#L39-L39)
+[src/index.js#L40-L40](src/index.js#L40-L40)
 
 Toggles the screen option with the given label.
 
@@ -492,7 +508,7 @@ Toggles the screen option with the given label.
 
 ### transformBlockTo
 
-[src/index.js#L40-L40](src/index.js#L40-L40)
+[src/index.js#L41-L41](src/index.js#L41-L41)
 
 Converts editor's block type.
 
@@ -502,7 +518,7 @@ Converts editor's block type.
 
 ### uninstallPlugin
 
-[src/index.js#L41-L41](src/index.js#L41-L41)
+[src/index.js#L42-L42](src/index.js#L42-L42)
 
 Uninstalls a plugin.
 
@@ -512,7 +528,7 @@ Uninstalls a plugin.
 
 ### visitAdminPage
 
-[src/index.js#L42-L42](src/index.js#L42-L42)
+[src/index.js#L43-L43](src/index.js#L43-L43)
 
 Visits admin page; if user is not logged in then it logging in it first, then visits admin page.
 
@@ -523,7 +539,7 @@ Visits admin page; if user is not logged in then it logging in it first, then vi
 
 ### waitForWindowDimensions
 
-[src/index.js#L43-L43](src/index.js#L43-L43)
+[src/index.js#L44-L44](src/index.js#L44-L44)
 
 Function that waits until the page viewport has the required dimensions.
 It is being used to address a problem where after using setViewport the execution may continue,
@@ -535,4 +551,7 @@ without the new dimensions being applied.
 -   **width** `number`: Width of the window.
 -   **height** `height`: Height of the window.
 
+
+<!-- END TOKEN(Autogenerated API docs) -->
+
 <br/><br/><p align="center"><img src="https://s.w.org/style/images/codeispoetry.png?1" alt="Code is Poetry." /></p>
diff --git a/packages/e2e-test-utils/package.json b/packages/e2e-test-utils/package.json
index f31d67677475e2..0a6871bff1d76c 100644
--- a/packages/e2e-test-utils/package.json
+++ b/packages/e2e-test-utils/package.json
@@ -33,11 +33,17 @@
 		"lodash": "^4.17.11",
 		"node-fetch": "^1.7.3"
 	},
+	"devDependencies": {
+		"@wordpress/docgen": "file:../docgen"
+	},
 	"peerDependencies": {
 		"jest": ">=24",
 		"puppeteer": ">=1.6"
 	},
 	"publishConfig": {
 		"access": "public"
+	},
+	"scripts": {
+		"docs:generate": "docgen ./src/index.js --output ./README.md --to-token"
 	}
 }