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fix: array rest destructuring in markup (#8555)

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Fixes #8554

---------

Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>
pull/8567/head
Nguyen Tran 2 years ago committed by GitHub
parent 17bf6db541
commit 83679e9700
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 281 additions and 31 deletions
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2
src/compiler/compile/compiler_warnings.ts
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@ -220,7 +220,7 @@ export default {
},
invalid_rest_eachblock_binding: (rest_element_name: string) => ({
code: 'invalid-rest-eachblock-binding',
message: `...${rest_element_name} operator will create a new object and binding propagation with original object will not work`
message: `The rest operator (...) will create a new object and binding '${rest_element_name}' with the original object will not work`
}),
avoid_mouse_events_on_document: {
code: 'avoid-mouse-events-on-document',

50
src/compiler/compile/nodes/shared/Context.ts
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@ -1,5 +1,5 @@
import { x } from 'code-red';
import { Node, Identifier, Expression, PrivateIdentifier } from 'estree';
import { Node, Identifier, Expression, PrivateIdentifier, Pattern } from 'estree';
import { walk } from 'estree-walker';
import is_reference, { NodeWithPropertyDefinition } from 'is-reference';
import { clone } from '../../../utils/clone';
@ -30,15 +30,17 @@ export function unpack_destructuring({
default_modifier = (node) => node,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element = false
}: {
contexts: Context[];
node: Node;
node: Pattern;
modifier?: DestructuredVariable['modifier'];
default_modifier?: DestructuredVariable['default_modifier'];
scope: TemplateScope;
component: Component;
context_rest_properties: Map<string, Node>;
in_rest_element?: boolean;
}) {
if (!node) return;
@ -49,28 +51,26 @@ export function unpack_destructuring({
modifier,
default_modifier
});
} else if (node.type === 'RestElement') {
contexts.push({
type: 'DestructuredVariable',
key: node.argument as Identifier,
modifier,
default_modifier
});
context_rest_properties.set((node.argument as Identifier).name, node);
if (in_rest_element) {
context_rest_properties.set(node.name, node);
}
} else if (node.type === 'ArrayPattern') {
node.elements.forEach((element, i) => {
if (element && element.type === 'RestElement') {
node.elements.forEach((element: Pattern | null, i: number) => {
if (!element) {
return;
} else if (element.type === 'RestElement') {
unpack_destructuring({
contexts,
node: element,
node: element.argument,
modifier: (node) => x`${modifier(node)}.slice(${i})` as Node,
default_modifier,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element: true
});
context_rest_properties.set((element.argument as Identifier).name, element);
} else if (element && element.type === 'AssignmentPattern') {
} else if (element.type === 'AssignmentPattern') {
const n = contexts.length;
mark_referenced(element.right, scope, component);
@ -87,7 +87,8 @@ export function unpack_destructuring({
)}` as Node,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element
});
} else {
unpack_destructuring({
@ -97,7 +98,8 @@ export function unpack_destructuring({
default_modifier,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element
});
}
});
@ -116,9 +118,9 @@ export function unpack_destructuring({
default_modifier,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element: true
});
context_rest_properties.set((property.argument as Identifier).name, property);
} else if (property.type === 'Property') {
const key = property.key;
const value = property.value;
@ -168,7 +170,8 @@ export function unpack_destructuring({
)}` as Node,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element
});
} else {
// e.g. { property } or { property: newName }
@ -179,7 +182,8 @@ export function unpack_destructuring({
default_modifier,
scope,
component,
context_rest_properties
context_rest_properties,
in_rest_element
});
}
}

69
test/runtime/samples/await-then-destruct-array-nested-rest/_config.js
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@ -0,0 +1,69 @@
export default {
props: {
thePromise: new Promise(_ => {})
},
html: `
loading...
`,
async test({ assert, component, target }) {
await (component.thePromise = Promise.resolve([1, 2, 3, 4, 5, 6, 7, 8]));
assert.htmlEqual(
target.innerHTML,
`
<p>a: 1</p>
<p>b: 2</p>
<p>c: 5</p>
<p>remaining length: 3</p>
`
);
await (component.thePromise = Promise.resolve([9, 10, 11, 12, 13, 14, 15]));
assert.htmlEqual(
target.innerHTML,
`
<p>a: 9</p>
<p>b: 10</p>
<p>c: 13</p>
<p>remaining length: 2</p>
`
);
try {
await (component.thePromise = Promise.reject([16, 17, 18, 19, 20, 21, 22]));
} catch (e) {
// do nothing
}
assert.htmlEqual(
target.innerHTML,
`
<p>c: 16</p>
<p>d: 17</p>
<p>e: 18</p>
<p>f: 19</p>
<p>g: 22</p>
`
);
try {
await (component.thePromise = Promise.reject([23, 24, 25, 26, 27, 28, 29, 30, 31]));
} catch (e) {
// do nothing
}
assert.htmlEqual(
target.innerHTML,
`
<p>c: 23</p>
<p>d: 24</p>
<p>e: 25</p>
<p>f: 26</p>
<p>g: 29</p>
`
);
}
};

18
test/runtime/samples/await-then-destruct-array-nested-rest/main.svelte
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@ -0,0 +1,18 @@
<script>
export let thePromise;
</script>
{#await thePromise}
loading...
{:then [ a, b, ...[,, c, ...{ length } ]]}
<p>a: {a}</p>
<p>b: {b}</p>
<p>c: {c}</p>
<p>remaining length: {length}</p>
{:catch [c, ...[d, e, f, ...[,,g]]]}
<p>c: {c}</p>
<p>d: {d}</p>
<p>e: {e}</p>
<p>f: {f}</p>
<p>g: {g}</p>
{/await}

19
test/runtime/samples/const-tag-await-then-destructuring-nested-rest/_config.js
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@ -0,0 +1,19 @@
export default {
html: '<div>12 120 70, 30+4=34</div>',
async test({ component, target, assert }) {
component.promise1 = Promise.resolve({width: 5, height: 6});
component.promise2 = Promise.reject({width: 6, height: 7});
await Promise.resolve();
assert.htmlEqual(target.innerHTML, `
<div>30 300 110, 50+6=56</div>
<div>42 420 130, 60+7=67</div>
`);
component.constant = 20;
assert.htmlEqual(target.innerHTML, `
<div>30 600 220, 100+6=106</div>
<div>42 840 260, 120+7=127</div>
`);
}
};

23
test/runtime/samples/const-tag-await-then-destructuring-nested-rest/main.svelte
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@ -0,0 +1,23 @@
<script>
export let promise1 = {width: 3, height: 4};
export let promise2 = {width: 5, height: 7};
export let constant = 10;
function calculate(width, height, constant) {
return { area: width * height, volume: width * height * constant };
}
</script>
{#await promise1 then { width, height }}
{@const {area, volume} = calculate(width, height, constant)}
{@const perimeter = (width + height) * constant}
{@const [_width, ...[_height, ...[sum]]] = [width * constant, height, width * constant + height]}
<div>{area} {volume} {perimeter}, {_width}+{_height}={sum}</div>
{/await}
{#await promise2 catch { width, height }}
{@const {area, volume} = calculate(width, height, constant)}
{@const perimeter = (width + height) * constant}
{@const [_width, ...[_height, ...[sum]]] = [width * constant, height, width * constant + height]}
<div>{area} {volume} {perimeter}, {_width}+{_height}={sum}</div>
{/await}

30
test/runtime/samples/const-tag-each-destructure-nested-rest/_config.js
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@ -0,0 +1,30 @@
export default {
html: `
<div>12 120 70, 30+4=34</div>
<div>35 350 120, 50+7=57</div>
<div>48 480 140, 60+8=68</div>
`,
async test({ component, target, assert }) {
component.constant = 20;
assert.htmlEqual(target.innerHTML, `
<div>12 240 140, 60+4=64</div>
<div>35 700 240, 100+7=107</div>
<div>48 960 280, 120+8=128</div>
`);
component.boxes = [
{width: 3, height: 4},
{width: 4, height: 5},
{width: 5, height: 6},
{width: 6, height: 7}
];
assert.htmlEqual(target.innerHTML, `
<div>12 240 140, 60+4=64</div>
<div>20 400 180, 80+5=85</div>
<div>30 600 220, 100+6=106</div>
<div>42 840 260, 120+7=127</div>
`);
}
};

19
test/runtime/samples/const-tag-each-destructure-nested-rest/main.svelte
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@ -0,0 +1,19 @@
<script>
export let boxes = [
{width: 3, height: 4},
{width: 5, height: 7},
{width: 6, height: 8},
];
export let constant = 10;
function calculate(width, height, constant) {
return { area: width * height, volume: width * height * constant };
}
</script>
{#each boxes as { width, height }}
{@const {area, volume} = calculate(width, height, constant)}
{@const perimeter = (width + height) * constant}
{@const [_width, ...[_height, ...[sum]]] = [width * constant, height, width * constant + height]}
<div>{area} {volume} {perimeter}, {_width}+{_height}={sum}</div>
{/each}

24
test/runtime/samples/each-block-destructured-array-nested-rest/_config.js
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@ -0,0 +1,24 @@
export default {
props: {
array: [
[1, 2, 3, 4, 5],
[6, 7, 8],
[9, 10, 11, 12],
[13, 14, 15, 16, 17, 18, 19, 20, 21, 22]
]
},
html: `
<p>First: 1, Second: 2, Third: 3, Elements remaining: 2</p>
<p>First: 6, Second: 7, Third: 8, Elements remaining: 0</p>
<p>First: 9, Second: 10, Third: 11, Elements remaining: 1</p>
<p>First: 13, Second: 14, Third: 15, Elements remaining: 7</p>
`,
test({ assert, component, target }) {
component.array = [[23, 24, 25, 26, 27, 28, 29]];
assert.htmlEqual( target.innerHTML, `
<p>First: 23, Second: 24, Third: 25, Elements remaining: 4</p>
`);
}
};

9
test/runtime/samples/each-block-destructured-array-nested-rest/main.svelte
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@ -0,0 +1,9 @@
<script>
export let array;
</script>
{#each array as [first, second, ...[third, ...{ length }]]}
<p>
First: {first}, Second: {second}, Third: {third}, Elements remaining: {length}
</p>
{/each}

4
test/validator/samples/rest-eachblock-binding-2/warnings.json
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@ -1,8 +1,8 @@
[
{
"code": "invalid-rest-eachblock-binding",
"message": "...rest operator will create a new object and binding propagation with original object will not work",
"start": { "line": 8, "column": 24 },
"message": "The rest operator (...) will create a new object and binding 'rest' with the original object will not work",
"start": { "line": 8, "column": 27 },
"end": { "line": 8, "column": 31 }
}
]

6
test/validator/samples/rest-eachblock-binding-3/warnings.json
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@ -1,8 +1,8 @@
[
{
"code": "invalid-rest-eachblock-binding",
"message": "...rest operator will create a new object and binding propagation with original object will not work",
"start": { "line": 5, "column": 32 },
"end": { "line": 5, "column": 39 }
"message": "The rest operator (...) will create a new object and binding 'rest' with the original object will not work",
"start": { "line": 5, "column": 35 },
"end": { "line": 5, "column": 39 }
}
]

9
test/validator/samples/rest-eachblock-binding-nested-rest/input.svelte
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@ -0,0 +1,9 @@
<script>
const a = [[1, 2, 3, 4, 5]];
</script>
{#each a as [first, second, ...[third, ...{ length }]]}
<p>{first}, {second}, {length}</p>
<input bind:value={third} />
<input bind:value={length} />
{/each}

26
test/validator/samples/rest-eachblock-binding-nested-rest/warnings.json
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@ -0,0 +1,26 @@
[
{
"code": "invalid-rest-eachblock-binding",
"end": {
"column": 37,
"line": 5
},
"message": "The rest operator (...) will create a new object and binding 'third' with the original object will not work",
"start": {
"column": 32,
"line": 5
}
},
{
"code": "invalid-rest-eachblock-binding",
"end": {
"column": 50,
"line": 5
},
"message": "The rest operator (...) will create a new object and binding 'length' with the original object will not work",
"start": {
"column": 44,
"line": 5
}
}
]

4
test/validator/samples/rest-eachblock-binding/warnings.json
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@ -1,8 +1,8 @@
[
{
"code": "invalid-rest-eachblock-binding",
"message": "...rest operator will create a new object and binding propagation with original object will not work",
"start": { "line": 5, "column": 25 },
"message": "The rest operator (...) will create a new object and binding 'rest' with the original object will not work",
"start": { "line": 5, "column": 28 },
"end": { "line": 5, "column": 32 }
}
]

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