diff --git a/src/compiler/compile/nodes/Element.ts b/src/compiler/compile/nodes/Element.ts
index 7a70e603a77f..d5ecbe44dadc 100644
--- a/src/compiler/compile/nodes/Element.ts
+++ b/src/compiler/compile/nodes/Element.ts
@@ -807,6 +807,11 @@ export default class Element extends Node {
 			);
 		}
 	}
+
+	get slot_template_name() {
+		// attribute.get_static_value
+		return this.attributes.find(attribute => attribute.name === 'slot').get_static_value() as string;
+	}
 }
 
 function should_have_attribute(
diff --git a/src/compiler/compile/nodes/SlotTemplate.ts b/src/compiler/compile/nodes/SlotTemplate.ts
index 214f081dab59..3f44aeaae497 100644
--- a/src/compiler/compile/nodes/SlotTemplate.ts
+++ b/src/compiler/compile/nodes/SlotTemplate.ts
@@ -12,7 +12,7 @@ export default class SlotTemplate extends Node {
 	children: INode[];
 	lets: Let[] = [];
 	slot_attribute: Attribute;
-	slot_name: string = 'default';
+	slot_template_name: string = 'default';
 
 	constructor(component: Component, parent: INode, scope: TemplateScope, info: any) {
 		super(component, parent, scope, info);
@@ -52,7 +52,7 @@ export default class SlotTemplate extends Node {
 								message: `slot attribute value is missing`
 							});
 						}
-						this.slot_name = this.slot_attribute.get_static_value() as string;
+						this.slot_template_name = this.slot_attribute.get_static_value() as string;
 						break;
 					}
 					throw new Error(`Invalid attribute "${node.name}" in <svelte:slot>`);
@@ -70,7 +70,7 @@ export default class SlotTemplate extends Node {
 		if (this.parent.type !== 'InlineComponent') {
 			this.component.error(this, {
 				code: `invalid-slotted-content`,
-				message: `Element with a slot='...' attribute must be a child of a component`
+				message: `<svelte:slot> must be a child of a component`
 			});
 		}
 	}
diff --git a/src/compiler/compile/nodes/shared/TemplateScope.ts b/src/compiler/compile/nodes/shared/TemplateScope.ts
index 4e087eedf5d5..df694ed45ec7 100644
--- a/src/compiler/compile/nodes/shared/TemplateScope.ts
+++ b/src/compiler/compile/nodes/shared/TemplateScope.ts
@@ -3,8 +3,9 @@ import ThenBlock from '../ThenBlock';
 import CatchBlock from '../CatchBlock';
 import InlineComponent from '../InlineComponent';
 import Element from '../Element';
+import SlotTemplate from '../SlotTemplate';
 
-type NodeWithScope = EachBlock | ThenBlock | CatchBlock | InlineComponent | Element;
+type NodeWithScope = EachBlock | ThenBlock | CatchBlock | InlineComponent | Element | SlotTemplate;
 
 export default class TemplateScope {
 	names: Set<string>;
@@ -40,7 +41,7 @@ export default class TemplateScope {
 
 	is_let(name: string) {
 		const owner = this.get_owner(name);
-		return owner && (owner.type === 'Element' || owner.type === 'InlineComponent');
+		return owner && (owner.type === 'Element' || owner.type === 'InlineComponent' || owner.type === 'SlotTemplate');
 	}
 
 	is_await(name: string) {
diff --git a/src/compiler/compile/render_dom/wrappers/Element/index.ts b/src/compiler/compile/render_dom/wrappers/Element/index.ts
index 148f837ee6d7..fc548d7e9523 100644
--- a/src/compiler/compile/render_dom/wrappers/Element/index.ts
+++ b/src/compiler/compile/render_dom/wrappers/Element/index.ts
@@ -2,7 +2,7 @@ import Renderer from '../../Renderer';
 import Element from '../../../nodes/Element';
 import Wrapper from '../shared/Wrapper';
 import Block from '../../Block';
-import { is_void, sanitize } from '../../../../utils/names';
+import { is_void } from '../../../../utils/names';
 import FragmentWrapper from '../Fragment';
 import { escape_html, string_literal } from '../../../utils/stringify';
 import TextWrapper from '../Text';
@@ -13,12 +13,9 @@ import AttributeWrapper from './Attribute';
 import StyleAttributeWrapper from './StyleAttribute';
 import { dimensions } from '../../../../utils/patterns';
 import Binding from './Binding';
-import InlineComponentWrapper from '../InlineComponent';
 import add_to_set from '../../../utils/add_to_set';
 import { add_event_handler } from '../shared/add_event_handlers';
 import { add_action } from '../shared/add_actions';
-import create_debugging_comment from '../shared/create_debugging_comment';
-import { get_slot_definition } from '../shared/get_slot_definition';
 import bind_this from '../shared/bind_this';
 import { is_head } from '../shared/is_head';
 import { Identifier } from 'estree';
@@ -175,49 +172,6 @@ export default class ElementWrapper extends Wrapper {
 		}
 
 		this.attributes = this.node.attributes.map(attribute => {
-			if (attribute.name === 'slot') {
-				// TODO make separate subclass for this?
-				let owner = this.parent;
-				while (owner) {
-					if (owner.node.type === 'InlineComponent') {
-						break;
-					}
-
-					if (owner.node.type === 'Element' && /-/.test(owner.node.name)) {
-						break;
-					}
-
-					owner = owner.parent;
-				}
-
-				if (owner && owner.node.type === 'InlineComponent') {
-					const name = attribute.get_static_value() as string;
-
-					if (!(owner as unknown as InlineComponentWrapper).slots.has(name)) {
-						const child_block = block.child({
-							comment: create_debugging_comment(node, this.renderer.component),
-							name: this.renderer.component.get_unique_name(`create_${sanitize(name)}_slot`),
-							type: 'slot'
-						});
-
-						const { scope, lets } = this.node;
-						const seen = new Set(lets.map(l => l.name.name));
-
-						(owner as unknown as InlineComponentWrapper).node.lets.forEach(l => {
-							if (!seen.has(l.name.name)) lets.push(l);
-						});
-
-						(owner as unknown as InlineComponentWrapper).slots.set(
-							name,
-							get_slot_definition(child_block, scope, lets)
-						);
-						this.renderer.blocks.push(child_block);
-					}
-
-					this.slot_block = (owner as unknown as InlineComponentWrapper).slots.get(name).block;
-					block = this.slot_block;
-				}
-			}
 			if (attribute.name === 'style') {
 				return new StyleAttributeWrapper(this, block, attribute);
 			}
@@ -269,15 +223,6 @@ export default class ElementWrapper extends Wrapper {
 		}
 
 		this.fragment = new FragmentWrapper(renderer, block, node.children, this, strip_whitespace, next_sibling);
-
-		if (this.slot_block) {
-			block.parent.add_dependencies(block.dependencies);
-
-			// appalling hack
-			const index = block.parent.wrappers.indexOf(this);
-			block.parent.wrappers.splice(index, 1);
-			block.wrappers.push(this);
-		}
 	}
 
 	render(block: Block, parent_node: Identifier, parent_nodes: Identifier) {
@@ -285,10 +230,6 @@ export default class ElementWrapper extends Wrapper {
 
 		if (this.node.name === 'noscript') return;
 
-		if (this.slot_block) {
-			block = this.slot_block;
-		}
-
 		const node = this.var;
 		const nodes = parent_nodes && block.get_unique_name(`${this.var.name}_nodes`); // if we're in unclaimable territory, i.e. <head>, parent_nodes is null
 		const children = x`@children(${this.node.name === 'template' ? x`${node}.content` : node})`;
diff --git a/src/compiler/compile/render_dom/wrappers/InlineComponent/index.ts b/src/compiler/compile/render_dom/wrappers/InlineComponent/index.ts
index 271b3de1e1c3..10e934647f33 100644
--- a/src/compiler/compile/render_dom/wrappers/InlineComponent/index.ts
+++ b/src/compiler/compile/render_dom/wrappers/InlineComponent/index.ts
@@ -4,6 +4,7 @@ import Renderer from '../../Renderer';
 import Block from '../../Block';
 import InlineComponent from '../../../nodes/InlineComponent';
 import FragmentWrapper from '../Fragment';
+import SlotTemplateWrapper from '../SlotTemplate';
 import { sanitize } from '../../../../utils/names';
 import add_to_set from '../../../utils/add_to_set';
 import { b, x, p } from 'code-red';
@@ -18,11 +19,15 @@ import EventHandler from '../Element/EventHandler';
 import { extract_names } from 'periscopic';
 import mark_each_block_bindings from '../shared/mark_each_block_bindings';
 
+type SlotDefinition = { block: Block; scope: TemplateScope; get_context?: Node; get_changes?: Node };
+
 export default class InlineComponentWrapper extends Wrapper {
 	var: Identifier;
-	slots: Map<string, { block: Block; scope: TemplateScope; get_context?: Node; get_changes?: Node }> = new Map();
+	slots: Map<string, SlotDefinition> = new Map();
 	node: InlineComponent;
 	fragment: FragmentWrapper;
+	children: Array<Wrapper | FragmentWrapper> = [];
+	default_slot_block: Block;
 
 	constructor(
 		renderer: Renderer,
@@ -75,6 +80,23 @@ export default class InlineComponentWrapper extends Wrapper {
 				});
 			});
 
+			const children = this.node.children.slice();
+			for (let i=children.length - 1; i>=0;) {
+				const child = children[i];
+				if (child.type === 'SlotTemplate' || (child.type === 'Element' && child.attributes.find(attribute => attribute.name === 'slot'))) {
+					const slot_template = new SlotTemplateWrapper(renderer, block, this, child, strip_whitespace, next_sibling);
+					this.children.push(slot_template);
+					children.splice(i, 1);
+					continue;
+				}
+
+				i--;
+			}
+
+			if (this.slots.has('default') && children.filter(node => !(node.type === 'Text' && node.data.trim() === ''))) {
+				throw new Error('Found elements without slot attribute when using slot="default"');
+			}
+
 			const default_slot = block.child({
 				comment: create_debugging_comment(node, renderer.component),
 				name: renderer.component.get_unique_name(`create_default_slot`),
@@ -82,9 +104,11 @@ export default class InlineComponentWrapper extends Wrapper {
 			});
 
 			this.renderer.blocks.push(default_slot);
+			this.default_slot_block = default_slot;
 
 			this.slots.set('default', get_slot_definition(default_slot, this.node.scope, this.node.lets));
-			this.fragment = new FragmentWrapper(renderer, default_slot, node.children, this, strip_whitespace, next_sibling);
+			const fragment = new FragmentWrapper(renderer, default_slot, children, this, strip_whitespace, next_sibling);
+			this.children.push(fragment);
 
 			const dependencies: Set<string> = new Set();
 
@@ -101,6 +125,13 @@ export default class InlineComponentWrapper extends Wrapper {
 		block.add_outro();
 	}
 
+	set_slot(name: string, slot_definition: SlotDefinition) {
+		if (this.slots.has(name)) {
+			throw new Error(`Duplicate slot name "${name}" in <${this.node.name}>`);
+		}
+		this.slots.set(name, slot_definition);
+	}
+
 	warn_if_reactive() {
 		const { name } = this.node;
 		const variable = this.renderer.component.var_lookup.get(name);
@@ -134,14 +165,10 @@ export default class InlineComponentWrapper extends Wrapper {
 		const statements: Array<Node | Node[]> = [];
 		const updates: Array<Node | Node[]> = [];
 
-		if (this.fragment) {
+		this.children.forEach((child) => {
 			this.renderer.add_to_context('$$scope', true);
-			const default_slot = this.slots.get('default');
-
-			this.fragment.nodes.forEach((child) => {
-				child.render(default_slot.block, null, x`#nodes` as unknown as Identifier);
-			});
-		}
+			child.render(this.default_slot_block, null, x`#nodes` as Identifier);
+		});
 
 		let props;
 		const name_changes = block.get_unique_name(`${name.name}_changes`);
@@ -193,7 +220,7 @@ export default class InlineComponentWrapper extends Wrapper {
 			component_opts.properties.push(p`$$inline: true`);
 		}
 
-		const fragment_dependencies = new Set(this.fragment ? ['$$scope'] : []);
+		const fragment_dependencies = new Set(this.slots.size ? ['$$scope'] : []);
 		this.slots.forEach(slot => {
 			slot.block.dependencies.forEach(name => {
 				const is_let = slot.scope.is_let(name);
diff --git a/src/compiler/compile/render_dom/wrappers/SlotTemplate.ts b/src/compiler/compile/render_dom/wrappers/SlotTemplate.ts
index d7b390f0fcf6..4effe62a249c 100644
--- a/src/compiler/compile/render_dom/wrappers/SlotTemplate.ts
+++ b/src/compiler/compile/render_dom/wrappers/SlotTemplate.ts
@@ -1,63 +1,77 @@
 import Wrapper from "./shared/Wrapper";
 import Renderer from "../Renderer";
 import Block from "../Block";
-import SlotTemplate from "../../nodes/SlotTemplate";
 import FragmentWrapper from "./Fragment";
 import create_debugging_comment from "./shared/create_debugging_comment";
-import { get_slot_definition } from './shared/get_slot_definition';
+import { get_slot_definition } from "./shared/get_slot_definition";
 import { x } from "code-red";
 import { sanitize } from "../../../utils/names";
 import { Identifier } from "estree";
 import InlineComponentWrapper from "./InlineComponent";
+import { extract_names } from "periscopic";
+import { INode } from "../../nodes/interfaces";
+import Let from "../../nodes/Let";
+import TemplateScope from "../../nodes/shared/TemplateScope";
 
-export default class SlotWrapper extends Wrapper {
-	node: SlotTemplate;
+type NodeWithLets = INode & {
+	scope: TemplateScope;
+	lets: Let[];
+	slot_template_name: string;
+};
+
+export default class SlotTemplateWrapper extends Wrapper {
+	node: NodeWithLets;
 	fragment: FragmentWrapper;
 	block: Block;
+	parent: InlineComponentWrapper;
 
 	constructor(
 		renderer: Renderer,
 		block: Block,
 		parent: Wrapper,
-		node: SlotTemplate,
+		node: NodeWithLets,
 		strip_whitespace: boolean,
 		next_sibling: Wrapper
 	) {
 		super(renderer, block, parent, node);
 
-		const { scope, lets, slot_name } = this.node;
+		const { scope, lets, slot_template_name } = this.node;
+
+		lets.forEach(l => {
+			extract_names(l.value || l.name).forEach(name => {
+				renderer.add_to_context(name, true);
+			});
+		});
 
 		this.block = block.child({
-			comment: create_debugging_comment(node, this.renderer.component),
+			comment: create_debugging_comment(this.node, this.renderer.component),
 			name: this.renderer.component.get_unique_name(
-				`create_${sanitize(slot_name)}_slot`
+				`create_${sanitize(slot_template_name)}_slot`
 			),
 			type: "slot"
 		});
 		this.renderer.blocks.push(this.block);
 
-		if (this.parent.node.type === "InlineComponent") {
-			const component = (this.parent as unknown) as InlineComponentWrapper;
-			const seen = new Set(lets.map(l => l.name.name));
-			component.node.lets.forEach(l => {
-				if (!seen.has(l.name.name)) lets.push(l);
-			});
-
-			component.slots.set(
-				slot_name,
-				get_slot_definition(this.block, scope, lets)
-			);
-		}
+		const seen = new Set(lets.map(l => l.name.name));
+		this.parent.node.lets.forEach(l => {
+			if (!seen.has(l.name.name)) lets.push(l);
+		});
 
-		this.fragment = new FragmentWrapper(renderer, this.block, node.children, this, strip_whitespace, next_sibling);
+		this.parent.set_slot(
+			slot_template_name,
+			get_slot_definition(this.block, scope, lets)
+		);
 
+		this.fragment = new FragmentWrapper(
+			renderer,
+			this.block,
+			node.type === "SlotTemplate" ? node.children : [node],
+			this,
+			strip_whitespace,
+			next_sibling
+		);
 
 		this.block.parent.add_dependencies(this.block.dependencies);
-
-		// appalling hack, copied from ElementWrapper
-		const index = this.block.parent.wrappers.indexOf(this);
-		this.block.parent.wrappers.splice(index, 1);
-		this.block.wrappers.push(this);
 	}
 
 	render() {
diff --git a/src/compiler/compile/render_ssr/handlers/SlotTemplate.ts b/src/compiler/compile/render_ssr/handlers/SlotTemplate.ts
index 688cf3169793..71680494a511 100644
--- a/src/compiler/compile/render_ssr/handlers/SlotTemplate.ts
+++ b/src/compiler/compile/render_ssr/handlers/SlotTemplate.ts
@@ -19,7 +19,7 @@ export default function(node: SlotTemplate, renderer: Renderer, options: RenderO
 		if (!seen.has(l.name.name)) lets.push(l);
 	});
 
-	options.slot_scopes.set(node.slot_name, {
+	options.slot_scopes.set(node.slot_template_name, {
 		input: get_slot_scope(node.lets),
 		output: renderer.pop()
 	});
diff --git a/test/parser/samples/error-svelte-selfdestructive/error.json b/test/parser/samples/error-svelte-selfdestructive/error.json
index 2443bb982207..dcec676d78ae 100644
--- a/test/parser/samples/error-svelte-selfdestructive/error.json
+++ b/test/parser/samples/error-svelte-selfdestructive/error.json
@@ -1,6 +1,6 @@
 {
 	"code": "invalid-tag-name",
-	"message": "Valid <svelte:...> tag names are svelte:head, svelte:options, svelte:window, svelte:body, svelte:self or svelte:component",
+	"message": "Valid <svelte:...> tag names are svelte:head, svelte:options, svelte:window, svelte:body, svelte:self, svelte:component or svelte:slot",
 	"pos": 10,
 	"start": {
 		"character": 10,
diff --git a/test/runtime/samples/component-slot-duplicate-error-2/Nested.svelte b/test/runtime/samples/component-slot-duplicate-error-2/Nested.svelte
new file mode 100644
index 000000000000..32eee1534acb
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-2/Nested.svelte
@@ -0,0 +1 @@
+<slot value="Hi" />
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error-2/_config.js b/test/runtime/samples/component-slot-duplicate-error-2/_config.js
new file mode 100644
index 000000000000..1c9fa51dc3d3
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-2/_config.js
@@ -0,0 +1,3 @@
+export default {
+	error: 'Duplicate slot name "foo" in <Nested>'
+};
diff --git a/test/runtime/samples/component-slot-duplicate-error-2/main.svelte b/test/runtime/samples/component-slot-duplicate-error-2/main.svelte
new file mode 100644
index 000000000000..6e423953badc
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-2/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="foo">{value}</svelte:slot>
+	<svelte:slot slot="foo">{value}</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error-3/Nested.svelte b/test/runtime/samples/component-slot-duplicate-error-3/Nested.svelte
new file mode 100644
index 000000000000..32eee1534acb
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-3/Nested.svelte
@@ -0,0 +1 @@
+<slot value="Hi" />
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error-3/_config.js b/test/runtime/samples/component-slot-duplicate-error-3/_config.js
new file mode 100644
index 000000000000..1c9fa51dc3d3
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-3/_config.js
@@ -0,0 +1,3 @@
+export default {
+	error: 'Duplicate slot name "foo" in <Nested>'
+};
diff --git a/test/runtime/samples/component-slot-duplicate-error-3/main.svelte b/test/runtime/samples/component-slot-duplicate-error-3/main.svelte
new file mode 100644
index 000000000000..22c10d7d4331
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-3/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="foo">{value}</svelte:slot>
+	<p slot="foo">{value}</p>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error-4/Nested.svelte b/test/runtime/samples/component-slot-duplicate-error-4/Nested.svelte
new file mode 100644
index 000000000000..0385342cef1b
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-4/Nested.svelte
@@ -0,0 +1 @@
+<slot />
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error-4/_config.js b/test/runtime/samples/component-slot-duplicate-error-4/_config.js
new file mode 100644
index 000000000000..cfe8e7054e0e
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-4/_config.js
@@ -0,0 +1,3 @@
+export default {
+	error: 'Found elements without slot attribute when using slot="default"'
+};
diff --git a/test/runtime/samples/component-slot-duplicate-error-4/main.svelte b/test/runtime/samples/component-slot-duplicate-error-4/main.svelte
new file mode 100644
index 000000000000..559e17b86e0e
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error-4/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="default">value</svelte:slot>
+	<p>value</p>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error/Nested.svelte b/test/runtime/samples/component-slot-duplicate-error/Nested.svelte
new file mode 100644
index 000000000000..32eee1534acb
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error/Nested.svelte
@@ -0,0 +1 @@
+<slot value="Hi" />
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-duplicate-error/_config.js b/test/runtime/samples/component-slot-duplicate-error/_config.js
new file mode 100644
index 000000000000..1c9fa51dc3d3
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error/_config.js
@@ -0,0 +1,3 @@
+export default {
+	error: 'Duplicate slot name "foo" in <Nested>'
+};
diff --git a/test/runtime/samples/component-slot-duplicate-error/main.svelte b/test/runtime/samples/component-slot-duplicate-error/main.svelte
new file mode 100644
index 000000000000..9024bcd46f65
--- /dev/null
+++ b/test/runtime/samples/component-slot-duplicate-error/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<p slot="foo">{value}</p>
+	<p slot="foo">{value}</p>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-slot-warning/_config.js b/test/runtime/samples/component-slot-warning/_config.js
index 6ffe624782e0..c1785f27640e 100644
--- a/test/runtime/samples/component-slot-warning/_config.js
+++ b/test/runtime/samples/component-slot-warning/_config.js
@@ -3,7 +3,6 @@ export default {
 		dev: true
 	},
 	warnings: [
-		'<Nested> received an unexpected slot "default".',
 		'<Nested> received an unexpected slot "slot1".'
 	]
 };
diff --git a/test/runtime/samples/component-svelte-slot-2/Nested.svelte b/test/runtime/samples/component-svelte-slot-2/Nested.svelte
new file mode 100644
index 000000000000..a94392ce5d82
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-2/Nested.svelte
@@ -0,0 +1 @@
+<slot name="name"></slot>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-2/_config.js b/test/runtime/samples/component-svelte-slot-2/_config.js
new file mode 100644
index 000000000000..9dfed6ff531e
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-2/_config.js
@@ -0,0 +1,6 @@
+export default {
+	html: `
+		<span>Hello</span>
+		<span>world</span>
+	`
+};
diff --git a/test/runtime/samples/component-svelte-slot-2/main.svelte b/test/runtime/samples/component-svelte-slot-2/main.svelte
new file mode 100644
index 000000000000..9686ab39f125
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-2/main.svelte
@@ -0,0 +1,15 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="name">
+		<span>Hello</span>
+	</svelte:slot>
+</Nested>
+
+<Nested>
+	<svelte:slot slot="name">
+		<span>world</span>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-aliased/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-aliased/Nested.svelte
new file mode 100644
index 000000000000..6eaf6fe3adcb
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-aliased/Nested.svelte
@@ -0,0 +1,9 @@
+<script>
+	export let things;
+</script>
+
+<div>
+	{#each things as thing}
+		<slot name="main" {thing}/>
+	{/each}
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-aliased/_config.js b/test/runtime/samples/component-svelte-slot-let-aliased/_config.js
new file mode 100644
index 000000000000..d66f613bb4b0
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-aliased/_config.js
@@ -0,0 +1,24 @@
+export default {
+	props: {
+		things: [1, 2, 3]
+	},
+
+	html: `
+		<div>
+			<span>1</span>
+			<span>2</span>
+			<span>3</span>
+		</div>`,
+
+	test({ assert, component, target }) {
+		component.things = [1, 2, 3, 4];
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				<span>1</span>
+				<span>2</span>
+				<span>3</span>
+				<span>4</span>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-aliased/main.svelte b/test/runtime/samples/component-svelte-slot-let-aliased/main.svelte
new file mode 100644
index 000000000000..9362795d57cf
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-aliased/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	import Nested from './Nested.svelte';
+
+	export let things;
+</script>
+
+<Nested {things} let:thing={x}>
+	<svelte:slot slot="main">
+		<span>{x}</span>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-b/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-b/Nested.svelte
new file mode 100644
index 000000000000..36c10ecbc215
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-b/Nested.svelte
@@ -0,0 +1,6 @@
+<script>
+	let count = 0;
+</script>
+
+<button on:click="{() => count += 1}">+1</button>
+<slot name="main" count={count}/>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-b/_config.js b/test/runtime/samples/component-svelte-slot-let-b/_config.js
new file mode 100644
index 000000000000..f13a3b2bb662
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-b/_config.js
@@ -0,0 +1,18 @@
+export default {
+	html: `
+		<button>+1</button>
+		<span>0</span>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelector('button');
+		const click = new window.MouseEvent('click');
+
+		await button.dispatchEvent(click);
+
+		assert.htmlEqual(target.innerHTML, `
+			<button>+1</button>
+			<span>1</span>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-b/main.svelte b/test/runtime/samples/component-svelte-slot-let-b/main.svelte
new file mode 100644
index 000000000000..c0107a1493f3
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-b/main.svelte
@@ -0,0 +1,9 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested let:count>
+	<svelte:slot slot="main">
+		<span>{count}</span>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-c/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-c/Nested.svelte
new file mode 100644
index 000000000000..122044059048
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-c/Nested.svelte
@@ -0,0 +1,6 @@
+<script>
+	let count = 0;
+</script>
+
+<button on:click="{() => count += 1}">+1</button>
+<slot name='main' c={count}/>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-c/_config.js b/test/runtime/samples/component-svelte-slot-let-c/_config.js
new file mode 100644
index 000000000000..fe8e68b1ac1e
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-c/_config.js
@@ -0,0 +1,18 @@
+export default {
+	html: `
+		<button>+1</button>
+		<span>0 (undefined)</span>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelector('button');
+		const click = new window.MouseEvent('click');
+
+		await button.dispatchEvent(click);
+
+		assert.htmlEqual(target.innerHTML, `
+			<button>+1</button>
+			<span>1 (undefined)</span>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-c/main.svelte b/test/runtime/samples/component-svelte-slot-let-c/main.svelte
new file mode 100644
index 000000000000..54ae1bbf295f
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-c/main.svelte
@@ -0,0 +1,9 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="main" let:c let:count>
+		<span>{c} ({count})</span>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-d/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-d/Nested.svelte
new file mode 100644
index 000000000000..9f3a345acdd5
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-d/Nested.svelte
@@ -0,0 +1,7 @@
+<script>
+	let foo = 'a';
+</script>
+
+<div on:click="{() => foo = 'b'}">
+	<slot name="main" {foo}></slot>
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-d/_config.js b/test/runtime/samples/component-svelte-slot-let-d/_config.js
new file mode 100644
index 000000000000..e293ae136c72
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-d/_config.js
@@ -0,0 +1,20 @@
+export default {
+	html: `
+		<div>
+			<p>a</p>
+		</div>
+	`,
+
+	async test({ assert, target, window }) {
+		const div = target.querySelector('div');
+		const click = new window.MouseEvent('click');
+
+		await div.dispatchEvent(click);
+
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				<p>b</p>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-d/main.svelte b/test/runtime/samples/component-svelte-slot-let-d/main.svelte
new file mode 100644
index 000000000000..b7003724b036
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-d/main.svelte
@@ -0,0 +1,9 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<svelte:slot slot="main" let:foo={bar}>
+		<p>{bar}</p>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured-2/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-destructured-2/Nested.svelte
new file mode 100644
index 000000000000..f46046c78e6f
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured-2/Nested.svelte
@@ -0,0 +1,5 @@
+<script>
+	export let props;
+</script>
+
+<slot name="main" value={props} data={Array.isArray(props) ? props[0] : props.a} />
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured-2/_config.js b/test/runtime/samples/component-svelte-slot-let-destructured-2/_config.js
new file mode 100644
index 000000000000..38b04b7b5e06
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured-2/_config.js
@@ -0,0 +1,68 @@
+export default {
+	html: `
+		<div>
+			hello world 0 hello
+			<button>Increment</button>
+		</div>
+		<div>
+			hello world 0 hello
+			<button>Increment</button>
+		</div>
+		<div>
+			hello world 0 hello
+			<button>Increment</button>
+		</div>
+	`,
+	async test({ assert, component, target, window }) {
+		const [button1, button2, button3] = target.querySelectorAll('button');
+		const event = new window.MouseEvent('click');
+
+		await button1.dispatchEvent(event);
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 0 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 0 hello
+				<button>Increment</button>
+			</div>
+		`);
+
+		await button2.dispatchEvent(event);
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 0 hello
+				<button>Increment</button>
+			</div>
+		`);
+
+		await button3.dispatchEvent(event);
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+			<div>
+				hello world 1 hello
+				<button>Increment</button>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured-2/main.svelte b/test/runtime/samples/component-svelte-slot-let-destructured-2/main.svelte
new file mode 100644
index 000000000000..734e6b139059
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured-2/main.svelte
@@ -0,0 +1,34 @@
+<script>
+	import Nested from "./Nested.svelte";
+	let c = 0, d = 0, e = 0;
+</script>
+
+<div>
+	<Nested props={['hello', 'world']}>
+		<svelte:slot slot="main" let:value={pair} let:data={foo}>
+			{pair[0]} {pair[1]} {c} {foo}
+		</svelte:slot>
+	</Nested>
+
+	<button on:click={() => { c += 1; }}>Increment</button>
+</div>
+
+<div>
+	<Nested props={['hello', 'world']}>
+		<svelte:slot slot="main" let:value={[a, b]} let:data={foo}>
+			{a} {b} {d} {foo}
+		</svelte:slot>
+	</Nested>
+
+	<button on:click={() => { d += 1; }}>Increment</button>
+</div>
+
+<div>
+	<Nested props={{ a: 'hello', b: 'world' }}>
+		<svelte:slot slot="main" let:value={{ a, b }} let:data={foo}>
+			{a} {b} {e} {foo}
+		</svelte:slot>
+	</Nested>
+
+	<button on:click={() => { e += 1; }}>Increment</button>
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-destructured/Nested.svelte
new file mode 100644
index 000000000000..99afb32aa068
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured/Nested.svelte
@@ -0,0 +1,9 @@
+<script>
+	export let things;
+</script>
+
+<div>
+	{#each things as thing}
+		<slot name="item" {thing}/>
+	{/each}
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured/_config.js b/test/runtime/samples/component-svelte-slot-let-destructured/_config.js
new file mode 100644
index 000000000000..d7aaae2d7735
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured/_config.js
@@ -0,0 +1,34 @@
+export default {
+	props: {
+		things: [
+			{ num: 1 },
+			{ num: 2 },
+			{ num: 3 }
+		]
+	},
+
+	html: `
+		<div>
+			<span>1</span>
+			<span>2</span>
+			<span>3</span>
+		</div>`,
+
+	test({ assert, component, target }) {
+		component.things = [
+			{ num: 1 },
+			{ num: 2 },
+			{ num: 3 },
+			{ num: 4 }
+		];
+
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				<span>1</span>
+				<span>2</span>
+				<span>3</span>
+				<span>4</span>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-destructured/main.svelte b/test/runtime/samples/component-svelte-slot-let-destructured/main.svelte
new file mode 100644
index 000000000000..1cf53a325546
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-destructured/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	import Nested from './Nested.svelte';
+
+	export let things;
+</script>
+
+<Nested {things}>
+	<svelte:slot slot="item" let:thing="{{ num }}">
+		<span>{num}</span>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-e/A.svelte b/test/runtime/samples/component-svelte-slot-let-e/A.svelte
new file mode 100644
index 000000000000..5064635f28fe
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-e/A.svelte
@@ -0,0 +1,11 @@
+<script>
+	import B from './B.svelte';
+	export let x;
+</script>
+
+<B {x} let:reflected>
+	<svelte:slot slot="main">
+		<span>{reflected}</span>
+		<slot name="main" {reflected} />
+	</svelte:slot>
+</B>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-e/B.svelte b/test/runtime/samples/component-svelte-slot-let-e/B.svelte
new file mode 100644
index 000000000000..352f10a24947
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-e/B.svelte
@@ -0,0 +1,5 @@
+<script>
+	export let x;
+</script>
+
+<slot name="main" reflected={x}/>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-e/_config.js b/test/runtime/samples/component-svelte-slot-let-e/_config.js
new file mode 100644
index 000000000000..967955dfd856
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-e/_config.js
@@ -0,0 +1,19 @@
+export default {
+	html: `
+		<span>1</span>
+		<span>1</span>
+		<span>1</span>
+		<span>1</span>
+	`,
+
+	async test({ assert, target, component }) {
+		component.x = 2;
+
+		assert.htmlEqual(target.innerHTML, `
+			<span>2</span>
+			<span>2</span>
+			<span>2</span>
+			<span>2</span>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-e/main.svelte b/test/runtime/samples/component-svelte-slot-let-e/main.svelte
new file mode 100644
index 000000000000..2856d393ea62
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-e/main.svelte
@@ -0,0 +1,16 @@
+<script>
+	import A from './A.svelte';
+	export let x = 1;
+</script>
+
+<A {x}>
+	<svelte:slot slot="main" let:reflected>
+		<span>{reflected}</span>
+	</svelte:slot>	
+</A>
+
+<A {x} let:reflected>
+	<svelte:slot slot="main">
+		<span>{reflected}</span>
+	</svelte:slot>	
+</A>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-f/A.svelte b/test/runtime/samples/component-svelte-slot-let-f/A.svelte
new file mode 100644
index 000000000000..4f4ac95014bb
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-f/A.svelte
@@ -0,0 +1,5 @@
+<script>
+	export let x;
+</script>
+
+<slot name="foo" reflected={x}/>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-f/_config.js b/test/runtime/samples/component-svelte-slot-let-f/_config.js
new file mode 100644
index 000000000000..73b90885b545
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-f/_config.js
@@ -0,0 +1,22 @@
+export default {
+	html: `
+		<span class="1">1</span>
+		0
+	`,
+	async test({ assert, target, component, window }) {
+		component.x = 2;
+
+		assert.htmlEqual(target.innerHTML, `
+			<span class="2">2</span>
+			0
+		`);
+
+		const span = target.querySelector('span');
+		await span.dispatchEvent(new window.MouseEvent('click'));
+
+		assert.htmlEqual(target.innerHTML, `
+			<span class="2">2</span>
+			2
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-f/main.svelte b/test/runtime/samples/component-svelte-slot-let-f/main.svelte
new file mode 100644
index 000000000000..721ca162aa27
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-f/main.svelte
@@ -0,0 +1,17 @@
+<script>
+	import A from './A.svelte';
+	export let x = 1;
+	let y = 0;
+</script>
+
+<A {x}>
+	<svelte:slot slot="foo" let:reflected>
+		<span 
+			on:click={() => y = reflected}
+			class={reflected}
+		>
+			{reflected}
+		</span>
+	</svelte:slot>
+</A>
+{ y }
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-in-binding/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-in-binding/Nested.svelte
new file mode 100644
index 000000000000..95b4842ee6ea
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-binding/Nested.svelte
@@ -0,0 +1,9 @@
+<script>
+	export let items;
+</script>
+
+<div>
+	{#each items as item, index}
+		<slot name="main" {index}/>
+	{/each}
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-in-binding/_config.js b/test/runtime/samples/component-svelte-slot-let-in-binding/_config.js
new file mode 100644
index 000000000000..41e77a9574eb
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-binding/_config.js
@@ -0,0 +1,26 @@
+export default {
+	html: `
+		<div>
+			<label>1: <input></label>
+			<label>2: <input></label>
+			<label>3: <input></label>
+		</div>
+	`,
+
+	ssrHtml: `
+		<div>
+			<label>1: <input value="a"></label>
+			<label>2: <input value="b"></label>
+			<label>3: <input value="c"></label>
+		</div>
+	`,
+
+	async test({ assert, component, target, window }) {
+		const inputs = target.querySelectorAll('input');
+
+		inputs[2].value = 'd';
+		await inputs[2].dispatchEvent(new window.Event('input'));
+
+		assert.deepEqual(component.letters, ['a', 'b', 'd']);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-in-binding/main.svelte b/test/runtime/samples/component-svelte-slot-let-in-binding/main.svelte
new file mode 100644
index 000000000000..54b4f2974896
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-binding/main.svelte
@@ -0,0 +1,13 @@
+<script>
+	import Nested from './Nested.svelte';
+
+	export let letters = ['a', 'b', 'c'];
+</script>
+
+<Nested items={letters}>
+	<svelte:slot slot="main" let:index>
+		<label>
+			{index + 1}: <input bind:value={letters[index]}>
+		</label>
+	</svelte:slot>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-in-slot/Inner.svelte b/test/runtime/samples/component-svelte-slot-let-in-slot/Inner.svelte
new file mode 100644
index 000000000000..50baf3aa93cd
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-slot/Inner.svelte
@@ -0,0 +1 @@
+<slot name="main"/>
diff --git a/test/runtime/samples/component-svelte-slot-let-in-slot/Outer.svelte b/test/runtime/samples/component-svelte-slot-let-in-slot/Outer.svelte
new file mode 100644
index 000000000000..d6c86307a5a4
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-slot/Outer.svelte
@@ -0,0 +1,5 @@
+<script>
+	export let prop
+</script>
+
+<slot name="main" value={prop} />
diff --git a/test/runtime/samples/component-svelte-slot-let-in-slot/_config.js b/test/runtime/samples/component-svelte-slot-let-in-slot/_config.js
new file mode 100644
index 000000000000..a86d869581fa
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-slot/_config.js
@@ -0,0 +1,12 @@
+export default {
+	props: {
+		prop: 'a',
+	},
+
+	html: 'a',
+
+	test({ assert, component, target }) {
+		component.prop = 'b';
+		assert.htmlEqual( target.innerHTML, 'b' );
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-in-slot/main.svelte b/test/runtime/samples/component-svelte-slot-let-in-slot/main.svelte
new file mode 100644
index 000000000000..11b9a4e91d96
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-in-slot/main.svelte
@@ -0,0 +1,16 @@
+<script>
+	import Outer from './Outer.svelte'
+	import Inner from './Inner.svelte'
+
+	export let prop
+</script>
+
+<Outer {prop}>
+	<svelte:slot slot="main" let:value>
+		<Inner>
+			<svelte:slot slot="main">
+				{value}
+			</svelte:slot>
+		</Inner>
+	</svelte:slot>
+</Outer>
diff --git a/test/runtime/samples/component-svelte-slot-let-named/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-named/Nested.svelte
new file mode 100644
index 000000000000..a3b09ff5b213
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-named/Nested.svelte
@@ -0,0 +1,9 @@
+<script>
+	export let things;
+</script>
+
+<div>
+	{#each things as thing}
+		<slot name="foo" {thing}/>
+	{/each}
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-named/_config.js b/test/runtime/samples/component-svelte-slot-let-named/_config.js
new file mode 100644
index 000000000000..f65448af93be
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-named/_config.js
@@ -0,0 +1,24 @@
+export default {
+	props: {
+		things: [1, 2, 3]
+	},
+
+	html: `
+		<div>
+			<div slot="foo"><span>1</span></div>
+			<div slot="foo"><span>2</span></div>
+			<div slot="foo"><span>3</span></div>
+		</div>`,
+
+	test({ assert, component, target }) {
+		component.things = [1, 2, 3, 4];
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				<div slot="foo"><span>1</span></div>
+				<div slot="foo"><span>2</span></div>
+				<div slot="foo"><span>3</span></div>
+				<div slot="foo"><span>4</span></div>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-named/main.svelte b/test/runtime/samples/component-svelte-slot-let-named/main.svelte
new file mode 100644
index 000000000000..f9e9e3a10fc6
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-named/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	import Nested from './Nested.svelte';
+
+	export let things;
+</script>
+
+<Nested {things}>
+	<div slot="foo" let:thing>
+		<span>{thing}</span>
+	</div>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-static/Nested.svelte b/test/runtime/samples/component-svelte-slot-let-static/Nested.svelte
new file mode 100644
index 000000000000..32eee1534acb
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-static/Nested.svelte
@@ -0,0 +1 @@
+<slot value="Hi" />
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let-static/_config.js b/test/runtime/samples/component-svelte-slot-let-static/_config.js
new file mode 100644
index 000000000000..3067939b88a3
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-static/_config.js
@@ -0,0 +1,3 @@
+export default {
+	html: `<p>Hi</p>`
+};
diff --git a/test/runtime/samples/component-svelte-slot-let-static/main.svelte b/test/runtime/samples/component-svelte-slot-let-static/main.svelte
new file mode 100644
index 000000000000..3eeaba976e1b
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let-static/main.svelte
@@ -0,0 +1,7 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested let:value>
+	<p>{value}</p>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let/Nested.svelte b/test/runtime/samples/component-svelte-slot-let/Nested.svelte
new file mode 100644
index 000000000000..3758adbd7ce4
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let/Nested.svelte
@@ -0,0 +1,9 @@
+<script>
+	export let things;
+</script>
+
+<div>
+	{#each things as thing}
+		<slot {thing}/>
+	{/each}
+</div>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot-let/_config.js b/test/runtime/samples/component-svelte-slot-let/_config.js
new file mode 100644
index 000000000000..d66f613bb4b0
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let/_config.js
@@ -0,0 +1,24 @@
+export default {
+	props: {
+		things: [1, 2, 3]
+	},
+
+	html: `
+		<div>
+			<span>1</span>
+			<span>2</span>
+			<span>3</span>
+		</div>`,
+
+	test({ assert, component, target }) {
+		component.things = [1, 2, 3, 4];
+		assert.htmlEqual(target.innerHTML, `
+			<div>
+				<span>1</span>
+				<span>2</span>
+				<span>3</span>
+				<span>4</span>
+			</div>
+		`);
+	}
+};
diff --git a/test/runtime/samples/component-svelte-slot-let/main.svelte b/test/runtime/samples/component-svelte-slot-let/main.svelte
new file mode 100644
index 000000000000..d00bb8e41eed
--- /dev/null
+++ b/test/runtime/samples/component-svelte-slot-let/main.svelte
@@ -0,0 +1,9 @@
+<script>
+	import Nested from './Nested.svelte';
+
+	export let things;
+</script>
+
+<Nested {things} let:thing>
+	<span>{thing}</span>
+</Nested>
\ No newline at end of file
diff --git a/test/runtime/samples/component-svelte-slot/main.svelte b/test/runtime/samples/component-svelte-slot/main.svelte
index a37df9e68308..c5c784c1577a 100644
--- a/test/runtime/samples/component-svelte-slot/main.svelte
+++ b/test/runtime/samples/component-svelte-slot/main.svelte
@@ -10,6 +10,4 @@
 	<svelte:slot slot="b">
 		<B name="world" />
 	</svelte:slot>
-	<svelte:slot slot="c">
-	</svelte:slot>
 </Nested>
diff --git a/test/validator/samples/svelte-slot-placement-2/errors.json b/test/validator/samples/svelte-slot-placement-2/errors.json
new file mode 100644
index 000000000000..e3ee8b744594
--- /dev/null
+++ b/test/validator/samples/svelte-slot-placement-2/errors.json
@@ -0,0 +1,9 @@
+[
+	{
+		"code": "invalid-slotted-content",
+		"message": "<svelte:slot> must be a child of a component",
+		"start": { "line": 5, "column": 0, "character": 59 },
+		"end": { "line": 7, "column": 14, "character": 104 },
+		"pos": 59
+	}
+]
diff --git a/test/validator/samples/svelte-slot-placement-2/input.svelte b/test/validator/samples/svelte-slot-placement-2/input.svelte
new file mode 100644
index 000000000000..d5a83bf66446
--- /dev/null
+++ b/test/validator/samples/svelte-slot-placement-2/input.svelte
@@ -0,0 +1,7 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<svelte:slot>
+	<div>test</div>
+</svelte:slot>
\ No newline at end of file
diff --git a/test/validator/samples/svelte-slot-placement/errors.json b/test/validator/samples/svelte-slot-placement/errors.json
new file mode 100644
index 000000000000..5843663f8ddb
--- /dev/null
+++ b/test/validator/samples/svelte-slot-placement/errors.json
@@ -0,0 +1,9 @@
+[
+	{
+		"code": "invalid-slotted-content",
+		"message": "<svelte:slot> must be a child of a component",
+		"start": { "line": 7, "column": 2, "character": 77 },
+		"end": { "line": 9, "column": 16, "character": 126 },
+		"pos": 77
+	}
+]
diff --git a/test/validator/samples/svelte-slot-placement/input.svelte b/test/validator/samples/svelte-slot-placement/input.svelte
new file mode 100644
index 000000000000..4803e75da932
--- /dev/null
+++ b/test/validator/samples/svelte-slot-placement/input.svelte
@@ -0,0 +1,11 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	<div>
+		<svelte:slot>
+			<div>test</div>
+		</svelte:slot>
+	</div>
+</Nested>
\ No newline at end of file