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Vue: Fix out of memory error when using vue-component-meta #28589

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merged 5 commits into from
Jul 17, 2024
Merged

Vue: Fix out of memory error when using vue-component-meta #28589

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33b487f
fix(vue-component-meta): fix out of memory issue
larsrickert Jul 13, 2024
70a6a41
update comment
larsrickert Jul 13, 2024
ebe47ff
fix test
larsrickert Jul 13, 2024
e75ac8b
update docs
larsrickert Jul 16, 2024
9601e82
Merge branch 'next' into larsrickert/26647-out-of-memory
kasperpeulen Jul 16, 2024
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20 changes: 20 additions & 0 deletions code/frameworks/vue3-vite/src/plugins/vue-component-meta.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,26 @@ export async function vueComponentMeta(tsconfigPath = 'tsconfig.json'): Promise<

const exportName = exportNames[index];

// we remove nested object schemas here since they are not used inside Storybook (we don't generate controls for object properties)
// and they can cause "out of memory" issues for large/complex schemas (e.g. HTMLElement)
// it also reduced the bundle size when running "Storybook build" when such schemas are used
(['props', 'exposed'] as const).forEach((key) => {
meta[key].forEach((value) => {
if (typeof value.schema !== 'object') return;

// we need to use Object.defineProperty here since schema is a getter so we can not set it directly
Object.defineProperty(value, 'schema', {
configurable: true,
enumerable: true,
value: {
kind: value.schema.kind,
type: value.schema.type,
// note that value.schema.schema is not included here (see comment above)
},
});
});
});

const exposed =
// the meta also includes duplicated entries in the "exposed" array with "on"
// prefix (e.g. onClick instead of click), so we need to filter them out here
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61 changes: 8 additions & 53 deletions code/renderers/vue3/src/docs/__snapshots__/extractArgTypes.test.ts.snap
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Original file line number Diff line number Diff line change
Expand Up @@ -157,12 +157,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"value": {
"name": "object",
"required": false,
"value": {
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
},
},
Expand All @@ -183,12 +178,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"value": {
"name": "object",
"required": false,
"value": {
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
},
},
Expand Down Expand Up @@ -279,12 +269,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"type": {
"name": "object",
"required": true,
"value": {
"foo": {
"name": "string",
"required": true,
},
},
"value": {},
},
},
"literalFromContext": {
Expand Down Expand Up @@ -325,12 +310,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"type": {
"name": "object",
"required": true,
"value": {
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
},
"nestedIntersection": {
Expand All @@ -347,16 +327,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"type": {
"name": "object",
"required": true,
"value": {
"additionalProp": {
"name": "string",
"required": true,
},
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
},
"nestedOptional": {
Expand All @@ -377,22 +348,12 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
{
"name": "object",
"required": false,
"value": {
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
{
"name": "object",
"required": false,
"value": {
"nestedProp": {
"name": "string",
"required": true,
},
},
"value": {},
},
],
},
Expand All @@ -411,13 +372,7 @@ exports[`extractArgTypes (vue-docgen-api) > should extract props for component 1
"type": {
"name": "object",
"required": false,
"value": {
"recursive": {
"name": "other",
"required": true,
"value": "MyNestedRecursiveProps",
},
},
"value": {},
},
},
"stringArray": {
Expand Down
13 changes: 4 additions & 9 deletions code/renderers/vue3/src/docs/extractArgTypes.ts
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import type { VueDocgenInfo, VueDocgenInfoEntry, VueDocgenPlugin } from '@storybook/vue3-vite';
import type { ExtractedProp } from 'storybook/internal/docs-tools';
import {
convert,
Expand All @@ -6,7 +7,6 @@ import {
type ArgTypesExtractor,
} from 'storybook/internal/docs-tools';
import type { SBType, StrictArgTypes, StrictInputType } from 'storybook/internal/types';
import type { VueDocgenInfo, VueDocgenInfoEntry, VueDocgenPlugin } from '@storybook/vue3-vite';

type PropertyMetaSchema = VueDocgenInfoEntry<'vue-component-meta', 'props'>['schema'];

Expand Down Expand Up @@ -283,17 +283,12 @@ export const convertVueComponentMetaProp = (
};
}

// recursively/deeply convert all properties of the object
case 'object':
return {
name: 'object',
value: Object.entries(schema.schema ?? {}).reduce<Record<string, SBType>>(
(obj, [propName, propSchema]) => {
obj[propName] = convertVueComponentMetaProp(propSchema);
return obj;
},
{}
),
// while Storybook generates simple JSON object controls, nested schemas don't have specialized controls
// so we don't need to recursively map the object schema here
value: {},
required,
};

Expand Down