v3 proposal

.eslintignore

@@ -7,6 +7,4 @@
 /.eslintcache
 
 # These are artifacts from various scripts
-/mithril.js
-/mithril.min.js
-/stream/stream.min.js
+/dist

.eslintrc.js → .eslintrc.json

@@ -1,14 +1,102 @@
-"use strict"
+{
+	"overrides": [
+		{"files": "*.cjs", "parserOptions": {"sourceType": "script"}},
+		{
+			"files": ["scripts/**"],
+			"env": {
+				"node": true,
+				"es2022": true
+			},
+			"parserOptions": {
+				"ecmaVersion": 2022
+			},
+			"rules": {
+				"no-process-env": "off",
+				"no-restricted-syntax": "off"
+			}
+		},
+		{
+			"files": ["performance/**"],
+			"env": {
+				"browser": true
+			},
+			"rules": {
+				"no-restricted-syntax": ["error",
+					{"selector": "Literal[bigint]", "message": "BigInts are not supported in ES2018"},
+					{"selector": "ChainExpression", "message": "Optional chaining is not supported in ES2018"},
+					{"selector": "BinaryExpression[operator='??']", "message": "Nullish coalescing is not supported in ES2018"},
+					{"selector": "MetaProperty[meta.name='import'][property.name='meta']", "message": "`import.meta` is not supported in ES2018"},
+					{"selector": "ExportAllDeclaration[exported!=null]", "message": "`export * as foo from ...` is not supported in ES2018"},
+					{"selector": "CatchClause[param=null]", "message": "Omitted `catch` bindings are not supported in ES2018"},
+					{"selector": "Literal[regex.flags=/s/]", "message": "`/.../s` is not supported in ES2018"},
+					{"selector": "Literal[regex.flags=/v/]", "message": "`/.../v` is not supported in ES2018"},
+
+					{"selector": "MemberExpression[property.name='matchAll']", "message": "`string.matchAll` is not supported in ES2018"},
+					{"selector": "MemberExpression[property.name='trimStart']", "message": "`string.trimStart` is not supported in ES2018"}
+				]
+			}
+		},
+		{
+			"files": ["tests/**", "test-utils/**"],
+			"env": {
+				"node": true
+			},
+			"rules": {
+				"no-process-env": "off",
+				"no-restricted-syntax": ["error",
+					{"selector": "Literal[bigint]", "message": "BigInts are not supported in ES2018"},
+					{"selector": "ChainExpression", "message": "Optional chaining is not supported in ES2018"},
+					{"selector": "BinaryExpression[operator='??']", "message": "Nullish coalescing is not supported in ES2018"},
+					{"selector": "MetaProperty[meta.name='import'][property.name='meta']", "message": "`import.meta` is not supported in ES2018"},
+					{"selector": "ExportAllDeclaration[exported!=null]", "message": "`export * as foo from ...` is not supported in ES2018"},
+					{"selector": "CatchClause[param=null]", "message": "Omitted `catch` bindings are not supported in ES2018"},
+					{"selector": "Literal[regex.flags=/s/]", "message": "`/.../s` is not supported in ES2018"},
+					{"selector": "Literal[regex.flags=/v/]", "message": "`/.../v` is not supported in ES2018"},
 
-module.exports = {
+					{"selector": "MemberExpression[property.name='matchAll']", "message": "`string.matchAll` is not supported in ES2018"},
+					{"selector": "MemberExpression[property.name='trimStart']", "message": "`string.trimStart` is not supported in ES2018"}
+				]
+			}
+		}
+	],
 	"env": {
-		"browser": true,
-		"commonjs": true,
-		"es6": true,
-		"node": true
+		"es2018": true
+	},
+	"globals": {
+		"ReadableStream": true,
+		"Response": true,
+		"queueMicrotask": true,
+		"URL": true,
+		"URLSearchParams": true,
+		"AbortController": true,
+		"console": true
+	},
+	"parserOptions": {
+		"ecmaVersion": 2018,
+		"sourceType": "module"
 	},
 	"extends": "eslint:recommended",
 	"rules": {
+		"no-restricted-syntax": ["error",
+			{"selector": "Literal[bigint]", "message": "BigInts are not supported in ES2018"},
+			{"selector": "ChainExpression", "message": "Optional chaining is not supported in ES2018"},
+			{"selector": "BinaryExpression[operator='??']", "message": "Nullish coalescing is not supported in ES2018"},
+			{"selector": "MetaProperty[meta.name='import'][property.name='meta']", "message": "`import.meta` is not supported in ES2018"},
+			{"selector": "ExportAllDeclaration[exported!=null]", "message": "`export * as foo from ...` is not supported in ES2018"},
+			{"selector": "CatchClause[param=null]", "message": "Omitted `catch` bindings are not supported in ES2018"},
+			{"selector": "Function[async=true][generator=true]", "message": "Async generators are not supported in ES2018"},
+			{"selector": "Literal[regex.flags=/v/]", "message": "`/.../v` is not supported in ES2018"},
+
+			{"selector": "MemberExpression[property.name='matchAll']", "message": "`string.matchAll` is not supported in ES2018"},
+			{"selector": "MemberExpression[property.name='trimStart']", "message": "`string.trimStart` is not supported in ES2018"},
+
+			{"selector": "VariableDeclaration[kind!='var']", "message": "Keep to `var` in `src/` to ensure the module compresses better"}
+		],
+		"no-restricted-properties": ["error",
+			{"object": "Promise", "property": "allSettled", "message": "`Promise.allSettled` is not supported in ES2018"},
+			{"object": "Object", "property": "fromEntries", "message": "`Object.fromEntries` is not supported in ES2018"}
+		],
+
 		"accessor-pairs": "error",
 		"array-bracket-spacing": [
 			"error",
@@ -141,7 +229,6 @@ module.exports = {
 		"no-restricted-globals": "error",
 		"no-restricted-imports": "error",
 		"no-restricted-modules": "error",
-		"no-restricted-syntax": "error",
 		"no-return-assign": "off",
 		"no-script-url": "error",
 		"no-self-compare": "error",
@@ -207,7 +294,7 @@ module.exports = {
 		"require-yield": "error",
 		"semi": "off",
 		"semi-spacing": "off",
-		"sort-imports": "error",
+		"sort-imports": ["error", {"allowSeparatedGroups": true}],
 		"sort-vars": "off",
 		"space-before-blocks": "off",
 		"space-before-function-paren": "off",
@@ -228,4 +315,4 @@ module.exports = {
 		"yoda": "off"
 	},
 	"root": true
-};
+}

.gitattributes

@@ -1,6 +1,4 @@
 * text=auto
-/mithril.js binary
-/mithril.min.js binary
 
 # Assets
 *.png binary

.gitignore

@@ -5,3 +5,10 @@
 /.vscode
 /.DS_Store
 /.eslintcache
+
+# Exclude the compiled output. It's available through prerelease publishes anyways, so there's no
+# need to keep a spare copy in the repo.
+/dist
+
+# For an easier time working with console logs from profiles.
+/*.log

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017 Leo Horie
+Copyright (c) 2024 Mithril Contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -15,11 +15,11 @@
 
 ## What is Mithril.js?
 
-A modern client-side JavaScript framework for building Single Page Applications. It's small (<!-- size -->9.05 KB<!-- /size --> gzipped), fast and provides routing and XHR utilities out of the box.
+A modern client-side JavaScript framework for web applications big and small. It's small, fast, and highly stable. And it offers utilities for routing, state management, and more right out of the box.
 
-Mithril.js is used by companies like Vimeo and Nike, and open source platforms like Lichess 👍.
+Mithril.js has been used by companies like Vimeo, Nike, and Amazon, and open source platforms like Lichess. 👍
 
-Mithril.js supports IE11, Firefox ESR, and the last two versions of Firefox, Edge, Safari, and Chrome. No polyfills required. 👌
+Mithril.js supports Firefox ESR and the last two versions of Firefox, Edge, Safari, and Chrome. No polyfills required. 👌
 
 ## Installation