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feat: use swc for import component transpilation (in case of esbuild)
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packages/react/import-component/import-component-loader.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| function createAstHelper(span = { start: 0, end: 0, ctxt: 0 }) { | ||
| const ast = { | ||
| IdentifierOrExpression: (subject) => { | ||
| if (typeof subject === 'string') { | ||
| return { | ||
| type: 'Identifier', | ||
| span, | ||
| value: subject, | ||
| optional: false, | ||
| }; | ||
| } else { | ||
| return subject; | ||
| } | ||
| }, | ||
| ObjectExpression: (properties) => { | ||
| return { | ||
| type: 'ObjectExpression', | ||
| span, | ||
| properties: Object.entries(properties).map(([key, value]) => { | ||
| return { | ||
| type: 'KeyValueProperty', | ||
| key: { | ||
| type: 'Identifier', | ||
| span, | ||
| value: key, | ||
| optional: false, | ||
| }, | ||
| value, | ||
| }; | ||
| }), | ||
| }; | ||
| }, | ||
| ArrowFunctionExpression: (body) => { | ||
| return { | ||
| type: 'ArrowFunctionExpression', | ||
| span, | ||
| params: [], | ||
| body, | ||
| }; | ||
| }, | ||
| CallExpression: (callee, ...args) => { | ||
| return { | ||
| type: 'CallExpression', | ||
| span, | ||
| callee: ast.IdentifierOrExpression(callee), | ||
| arguments: args.map((expression) => { | ||
| return { | ||
| spread: null, | ||
| expression, | ||
| }; | ||
| }), | ||
| typeArguments: null, | ||
| }; | ||
| }, | ||
| MemberExpression: (object, property) => { | ||
| return { | ||
| type: 'MemberExpression', | ||
| span, | ||
| object: ast.IdentifierOrExpression(object), | ||
| property: ast.IdentifierOrExpression(property), | ||
| computed: false, | ||
| }; | ||
| }, | ||
| }; | ||
|
|
||
| return ast; | ||
| } | ||
|
|
||
| module.exports = { | ||
| createAstHelper, | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| const { transformSync } = require('@swc/core'); | ||
| const { ImportComponentTransformer } = require('./swc-transformer'); | ||
|
|
||
| function importComponentLoader(source, inputSourceMap) { | ||
| if (!/[^\w]importComponent\s*\(/.test(source)) return source; | ||
|
|
||
| const { resourcePath: sourceFileName } = this; | ||
| const ts = /\.tsx?$/.test(sourceFileName); | ||
| const tsx = /\.tsx$/.test(sourceFileName); | ||
| const parser = ts | ||
| ? { syntax: 'typescript', tsx } | ||
| : { syntax: 'ecmascript', jsx: true }; | ||
|
|
||
| const { code } = transformSync(source, { | ||
| sourceFileName, | ||
| inputSourceMap: inputSourceMap && JSON.stringify(inputSourceMap), | ||
| jsc: { | ||
| target: 'es2022', | ||
| parser, | ||
| }, | ||
| plugin: (m) => new ImportComponentTransformer().visitProgram(m), | ||
| }); | ||
|
|
||
| return code; | ||
| } | ||
|
|
||
| module.exports = importComponentLoader; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| const { default: Visitor } = require('@swc/core/Visitor'); | ||
| const { createAstHelper } = require('./swc-ast-helper'); | ||
|
|
||
| class ImportComponentTransformer extends Visitor { | ||
| visitCallExpression(expression) { | ||
| if ( | ||
| expression.callee.type !== 'Identifier' || | ||
| expression.callee.value !== 'importComponent' | ||
| ) { | ||
| return expression; | ||
| } | ||
|
|
||
| if ( | ||
| !Array.isArray(expression.arguments) || | ||
| expression.arguments.length < 1 | ||
| ) { | ||
| throw new Error( | ||
| '"importComponent" must be called with at least one parameter!' | ||
| ); | ||
| } | ||
|
|
||
| const argument = expression.arguments[0].expression; | ||
|
|
||
| if (argument.type !== 'ArrowFunctionExpression') { | ||
| return expression; | ||
| } | ||
|
|
||
| const ast = createAstHelper(expression.span); | ||
| const importValueExpression = argument.body.arguments[0].expression; | ||
|
|
||
| return ast.CallExpression( | ||
| 'importComponent', | ||
| ast.ObjectExpression({ | ||
| load: ast.ArrowFunctionExpression( | ||
| ast.CallExpression('import', importValueExpression) | ||
| ), | ||
| moduleId: ast.CallExpression( | ||
| ast.MemberExpression('require', 'resolveWeak'), | ||
| importValueExpression | ||
| ), | ||
| }) | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| module.exports = { ImportComponentTransformer }; |
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