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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright (c) 2024, salesforce.com, inc. | ||
| * All rights reserved. | ||
| * SPDX-License-Identifier: MIT | ||
| * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT | ||
| */ | ||
| export const reservedKeywords = new Set([ | ||
| 'NaN', | ||
| 'arguments', | ||
| 'break', | ||
| 'case', | ||
| 'catch', | ||
| 'class', | ||
| 'const', | ||
| 'continue', | ||
| 'debugger', | ||
| 'default', | ||
| 'delete', | ||
| 'do', | ||
| 'else', | ||
| 'enum', | ||
| 'eval', | ||
| 'export', | ||
| 'extends', | ||
| 'false', | ||
| 'finally', | ||
| 'for', | ||
| 'function', | ||
| 'if', | ||
| 'implements', | ||
| 'import', | ||
| 'in', | ||
| 'instanceof', | ||
| 'interface', | ||
| 'let', | ||
| 'new', | ||
| 'null', | ||
| 'package', | ||
| 'private', | ||
| 'protected', | ||
| 'public', | ||
| 'return', | ||
| 'static', | ||
| 'super', | ||
| 'switch', | ||
| 'this', | ||
| 'throw', | ||
| 'true', | ||
| 'try', | ||
| 'typeof', | ||
| 'undefined', | ||
| 'var', | ||
| 'void', | ||
| 'while', | ||
| 'with', | ||
| 'yield', | ||
| ]); |
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186 changes: 186 additions & 0 deletions
186
packages/@lwc/ssr-compiler/src/__tests__/estemplate.spec.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| /* | ||
| * Copyright (c) 2024, salesforce.com, inc. | ||
| * All rights reserved. | ||
| * SPDX-License-Identifier: MIT | ||
| * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT | ||
| */ | ||
|
|
||
| import { is, builders as b } from 'estree-toolkit'; | ||
| import { esTemplate, esTemplateWithYield } from '../estemplate'; | ||
|
|
||
| Object.entries({ | ||
| esTemplate, | ||
| esTemplateWithYield, | ||
| }).forEach(([topLevelFnName, topLevelFn]) => { | ||
| const yieldStmtsAllowed = topLevelFnName === 'esTemplateWithYield'; | ||
|
|
||
| describe(topLevelFnName, () => { | ||
| describe('failure upon parse', () => { | ||
| yieldStmtsAllowed || | ||
| test('with yield statements', () => { | ||
| const createTemplate = () => topLevelFn` | ||
| const foo = "bar"; | ||
| yield foo; | ||
| `; | ||
| expect(createTemplate).toThrow('Unexpected token'); | ||
| }); | ||
|
|
||
| test('when attempting to replace unreplaceable code constructs', () => { | ||
| // Someone might try to create a template where 'class' or 'function' | ||
| // is provided as an argument to the ES template. | ||
| const isFunctionOrClass = (node: any) => | ||
| is.functionDeclaration(node) || is.classDeclaration(node); | ||
| const createTemplate = () => topLevelFn` | ||
| ${isFunctionOrClass} classOrFunctionDecl {} | ||
| `; | ||
| expect(createTemplate).toThrow('Unexpected token'); | ||
| }); | ||
|
|
||
| test('syntax errors due to typo', () => { | ||
| const createTemplate = () => topLevelFn` | ||
| calss MyCmp extends LightningElement { | ||
| connectedCallbac() { | ||
| console.log('if you see this, calss has been added to the JS language'); | ||
| } | ||
| } | ||
| `; | ||
| expect(createTemplate).toThrow('Unexpected token'); | ||
| }); | ||
| }); | ||
|
|
||
| describe('failure upon invocation', () => { | ||
| test('when replacing incorrect node type', () => { | ||
| const tmpl = topLevelFn` | ||
| const ${is.identifier} = 'foo'; | ||
| `; | ||
| const doReplacement = () => tmpl(b.literal('I am not an identifier')); | ||
| expect(doReplacement).toThrow( | ||
| 'Validation failed for templated node of type Identifier' | ||
| ); | ||
| }); | ||
| }); | ||
|
|
||
| describe('successful replacement', () => { | ||
| yieldStmtsAllowed && | ||
| test('with yield statements', () => { | ||
| const tmpl = topLevelFn` | ||
| yield ${is.literal}; | ||
| `; | ||
| const replacedAst = tmpl(b.literal('foo')); | ||
|
|
||
| expect(replacedAst).toMatchObject({ | ||
| expression: { | ||
| argument: { | ||
| type: 'Literal', | ||
| value: 'foo', | ||
| }, | ||
| delegate: false, | ||
| type: 'YieldExpression', | ||
| }, | ||
| type: 'ExpressionStatement', | ||
| }); | ||
| }); | ||
|
|
||
| test('with LH identifier nodes', () => { | ||
| const tmpl = topLevelFn` | ||
| const ${is.identifier} = 'foobar' | ||
| `; | ||
| const replacedAst = tmpl(b.identifier('heyImNewHere')); | ||
| expect(replacedAst).toMatchObject({ | ||
| declarations: [ | ||
| { | ||
| id: { | ||
| name: 'heyImNewHere', | ||
| type: 'Identifier', | ||
| }, | ||
| init: { | ||
| type: 'Literal', | ||
| value: 'foobar', | ||
| }, | ||
| type: 'VariableDeclarator', | ||
| }, | ||
| ], | ||
| kind: 'const', | ||
| type: 'VariableDeclaration', | ||
| }); | ||
| }); | ||
| test('with multiple nodes', () => { | ||
| const tmpl = topLevelFn` | ||
| const foo = ${is.literal} + ${is.identifier}; | ||
| fnCall(foo, ${is.objectExpression}); | ||
| `; | ||
| const replacedAst = tmpl( | ||
| b.literal(5), | ||
| b.identifier('bar'), | ||
| b.objectExpression([ | ||
| b.property('init', b.literal('config'), b.literal('someConfig')), | ||
| ]) | ||
| ); | ||
|
|
||
| expect(replacedAst).toMatchObject([ | ||
| { | ||
| declarations: [ | ||
| { | ||
| id: { | ||
| name: 'foo', | ||
| type: 'Identifier', | ||
| }, | ||
| init: { | ||
| left: { | ||
| type: 'Literal', | ||
| value: 5, | ||
| }, | ||
| operator: '+', | ||
| right: { | ||
| name: 'bar', | ||
| type: 'Identifier', | ||
| }, | ||
| type: 'BinaryExpression', | ||
| }, | ||
| type: 'VariableDeclarator', | ||
| }, | ||
| ], | ||
| kind: 'const', | ||
| type: 'VariableDeclaration', | ||
| }, | ||
| { | ||
| expression: { | ||
| arguments: [ | ||
| { | ||
| name: 'foo', | ||
| type: 'Identifier', | ||
| }, | ||
| { | ||
| properties: [ | ||
| { | ||
| computed: false, | ||
| key: { | ||
| type: 'Literal', | ||
| value: 'config', | ||
| }, | ||
| kind: 'init', | ||
| shorthand: false, | ||
| type: 'Property', | ||
| value: { | ||
| type: 'Literal', | ||
| value: 'someConfig', | ||
| }, | ||
| }, | ||
| ], | ||
| type: 'ObjectExpression', | ||
| }, | ||
| ], | ||
| callee: { | ||
| name: 'fnCall', | ||
| type: 'Identifier', | ||
| }, | ||
| optional: false, | ||
| type: 'CallExpression', | ||
| }, | ||
| type: 'ExpressionStatement', | ||
| }, | ||
| ]); | ||
| }); | ||
| }); | ||
| }); | ||
| }); |
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