2019-09-25 03:49:02 +08:00
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import {
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locStub,
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generate,
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NodeTypes,
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RootNode,
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createSimpleExpression,
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createObjectExpression,
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createObjectProperty,
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createArrayExpression,
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createCompoundExpression,
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createInterpolation,
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createSequenceExpression,
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createCallExpression,
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createConditionalExpression,
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IfCodegenNode,
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ForCodegenNode,
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createCacheExpression,
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createTemplateLiteral,
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createBlockStatement,
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createIfStatement,
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createAssignmentExpression
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} from '../src'
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import {
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CREATE_VNODE,
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TO_DISPLAY_STRING,
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RESOLVE_DIRECTIVE,
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helperNameMap,
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RESOLVE_COMPONENT,
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CREATE_COMMENT
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} from '../src/runtimeHelpers'
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import { createElementWithCodegen } from './testUtils'
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import { PatchFlags } from '@vue/shared'
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2019-09-25 03:49:02 +08:00
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function createRoot(options: Partial<RootNode> = {}): RootNode {
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return {
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type: NodeTypes.ROOT,
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children: [],
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helpers: [],
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components: [],
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directives: [],
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imports: [],
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hoists: [],
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cached: 0,
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temps: 0,
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codegenNode: createSimpleExpression(`null`, false),
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loc: locStub,
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...options
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}
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}
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describe('compiler: codegen', () => {
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test('module mode preamble', () => {
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const root = createRoot({
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helpers: [CREATE_VNODE, RESOLVE_DIRECTIVE]
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})
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const { code } = generate(root, { mode: 'module' })
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expect(code).toMatch(
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`import { ${helperNameMap[CREATE_VNODE]}, ${
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helperNameMap[RESOLVE_DIRECTIVE]
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} } from "vue"`
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)
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expect(code).toMatchSnapshot()
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})
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test('function mode preamble', () => {
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const root = createRoot({
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helpers: [CREATE_VNODE, RESOLVE_DIRECTIVE]
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})
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const { code } = generate(root, { mode: 'function' })
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expect(code).toMatch(`const _Vue = Vue`)
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expect(code).toMatch(
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`const { ${helperNameMap[CREATE_VNODE]}: _${
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helperNameMap[CREATE_VNODE]
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}, ${helperNameMap[RESOLVE_DIRECTIVE]}: _${
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helperNameMap[RESOLVE_DIRECTIVE]
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} } = _Vue`
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)
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expect(code).toMatchSnapshot()
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})
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test('function mode preamble w/ prefixIdentifiers: true', () => {
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const root = createRoot({
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helpers: [CREATE_VNODE, RESOLVE_DIRECTIVE]
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})
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const { code } = generate(root, {
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mode: 'function',
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prefixIdentifiers: true
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})
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expect(code).not.toMatch(`const _Vue = Vue`)
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expect(code).toMatch(
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`const { ${helperNameMap[CREATE_VNODE]}, ${
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helperNameMap[RESOLVE_DIRECTIVE]
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} } = Vue`
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)
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expect(code).toMatchSnapshot()
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})
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test('assets', () => {
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const root = createRoot({
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components: [`Foo`, `bar-baz`, `barbaz`],
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directives: [`my_dir`]
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})
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const { code } = generate(root, { mode: 'function' })
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expect(code).toMatch(
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`const _component_Foo = _${helperNameMap[RESOLVE_COMPONENT]}("Foo")\n`
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)
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expect(code).toMatch(
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`const _component_bar_baz = _${
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helperNameMap[RESOLVE_COMPONENT]
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}("bar-baz")\n`
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)
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expect(code).toMatch(
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`const _component_barbaz = _${
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helperNameMap[RESOLVE_COMPONENT]
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}("barbaz")\n`
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)
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expect(code).toMatch(
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`const _directive_my_dir = _${
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helperNameMap[RESOLVE_DIRECTIVE]
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}("my_dir")\n`
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)
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expect(code).toMatchSnapshot()
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})
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2019-09-26 02:13:33 +08:00
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test('hoists', () => {
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const root = createRoot({
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hoists: [
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createSimpleExpression(`hello`, false, locStub),
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createObjectExpression(
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[
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createObjectProperty(
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createSimpleExpression(`id`, true, locStub),
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createSimpleExpression(`foo`, true, locStub)
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)
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],
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locStub
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)
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]
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})
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const { code } = generate(root)
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expect(code).toMatch(`const _hoisted_1 = hello`)
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expect(code).toMatch(`const _hoisted_2 = { id: "foo" }`)
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expect(code).toMatchSnapshot()
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})
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2020-02-05 11:49:47 +08:00
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test('temps', () => {
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const root = createRoot({
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temps: 3
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})
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const { code } = generate(root)
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expect(code).toMatch(`let _temp0, _temp1, _temp2`)
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expect(code).toMatchSnapshot()
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})
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2019-09-25 03:49:02 +08:00
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test('prefixIdentifiers: true should inject _ctx statement', () => {
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const { code } = generate(createRoot(), { prefixIdentifiers: true })
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expect(code).toMatch(`const _ctx = this\n`)
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expect(code).toMatchSnapshot()
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})
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test('static text', () => {
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const { code } = generate(
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createRoot({
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codegenNode: {
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type: NodeTypes.TEXT,
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content: 'hello',
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loc: locStub
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}
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})
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)
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expect(code).toMatch(`return "hello"`)
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expect(code).toMatchSnapshot()
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})
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test('interpolation', () => {
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const { code } = generate(
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createRoot({
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codegenNode: createInterpolation(`hello`, locStub)
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})
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)
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expect(code).toMatch(`return _${helperNameMap[TO_DISPLAY_STRING]}(hello)`)
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expect(code).toMatchSnapshot()
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})
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test('comment', () => {
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const { code } = generate(
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createRoot({
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codegenNode: {
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type: NodeTypes.COMMENT,
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content: 'foo',
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loc: locStub
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}
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})
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)
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2019-10-25 05:55:00 +08:00
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expect(code).toMatch(`return _${helperNameMap[CREATE_COMMENT]}("foo")`)
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expect(code).toMatchSnapshot()
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})
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2019-10-03 01:11:07 +08:00
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test('compound expression', () => {
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const { code } = generate(
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createRoot({
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codegenNode: createCompoundExpression([
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`_ctx.`,
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createSimpleExpression(`foo`, false, locStub),
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` + `,
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{
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type: NodeTypes.INTERPOLATION,
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loc: locStub,
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content: createSimpleExpression(`bar`, false, locStub)
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}
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])
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})
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)
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2020-01-27 06:35:21 +08:00
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expect(code).toMatch(
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`return _ctx.foo + _${helperNameMap[TO_DISPLAY_STRING]}(bar)`
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)
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2019-09-26 07:17:45 +08:00
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expect(code).toMatchSnapshot()
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})
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2019-10-03 01:11:07 +08:00
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test('ifNode', () => {
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const { code } = generate(
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createRoot({
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codegenNode: {
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type: NodeTypes.IF,
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loc: locStub,
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branches: [],
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codegenNode: createSequenceExpression([
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createSimpleExpression('foo', false),
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createSimpleExpression('bar', false)
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]) as IfCodegenNode
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}
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})
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)
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expect(code).toMatch(`return (foo, bar)`)
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expect(code).toMatchSnapshot()
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})
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2019-10-03 01:11:07 +08:00
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test('forNode', () => {
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const { code } = generate(
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createRoot({
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codegenNode: {
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type: NodeTypes.FOR,
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loc: locStub,
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source: createSimpleExpression('foo', false),
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valueAlias: undefined,
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keyAlias: undefined,
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objectIndexAlias: undefined,
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children: [],
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parseResult: {} as any,
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codegenNode: createSequenceExpression([
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createSimpleExpression('foo', false),
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createSimpleExpression('bar', false)
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]) as ForCodegenNode
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}
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})
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)
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2019-10-02 00:25:13 +08:00
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expect(code).toMatch(`return (foo, bar)`)
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expect(code).toMatchSnapshot()
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})
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2019-10-06 10:47:20 +08:00
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test('Element (callExpression + objectExpression + TemplateChildNode[])', () => {
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const { code } = generate(
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createRoot({
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codegenNode: createElementWithCodegen([
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// string
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`"div"`,
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// ObjectExpression
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createObjectExpression(
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[
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createObjectProperty(
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createSimpleExpression(`id`, true, locStub),
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createSimpleExpression(`foo`, true, locStub)
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),
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createObjectProperty(
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createSimpleExpression(`prop`, false, locStub),
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createSimpleExpression(`bar`, false, locStub)
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),
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// compound expression as computed key
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createObjectProperty(
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{
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type: NodeTypes.COMPOUND_EXPRESSION,
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loc: locStub,
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children: [
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`foo + `,
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createSimpleExpression(`bar`, false, locStub)
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]
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},
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createSimpleExpression(`bar`, false, locStub)
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)
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],
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locStub
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),
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// ChildNode[]
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[
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createElementWithCodegen([
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`"p"`,
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createObjectExpression(
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[
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createObjectProperty(
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// should quote the key!
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createSimpleExpression(`some-key`, true, locStub),
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createSimpleExpression(`foo`, true, locStub)
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)
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],
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locStub
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)
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])
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],
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2019-10-06 10:47:20 +08:00
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// flag
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PatchFlags.FULL_PROPS + ''
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])
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})
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)
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expect(code).toMatch(`
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return _${helperNameMap[CREATE_VNODE]}("div", {
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|
|
id: "foo",
|
2019-09-25 04:35:01 +08:00
|
|
|
[prop]: bar,
|
|
|
|
[foo + bar]: bar
|
2019-09-28 12:19:24 +08:00
|
|
|
}, [
|
2019-10-06 05:18:25 +08:00
|
|
|
_${helperNameMap[CREATE_VNODE]}("p", { "some-key": "foo" })
|
2019-10-06 10:47:20 +08:00
|
|
|
], ${PatchFlags.FULL_PROPS})`)
|
|
|
|
expect(code).toMatchSnapshot()
|
|
|
|
})
|
|
|
|
|
|
|
|
test('ArrayExpression', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createArrayExpression([
|
|
|
|
createSimpleExpression(`foo`, false),
|
|
|
|
createCallExpression(`bar`, [`baz`])
|
|
|
|
])
|
|
|
|
})
|
|
|
|
)
|
|
|
|
expect(code).toMatch(`return [
|
2019-09-25 03:49:02 +08:00
|
|
|
foo,
|
2019-10-06 10:47:20 +08:00
|
|
|
bar(baz)
|
|
|
|
]`)
|
2019-09-25 03:49:02 +08:00
|
|
|
expect(code).toMatchSnapshot()
|
|
|
|
})
|
2019-10-02 00:25:13 +08:00
|
|
|
|
2019-10-02 03:43:59 +08:00
|
|
|
test('SequenceExpression', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
2019-10-03 01:11:07 +08:00
|
|
|
codegenNode: createSequenceExpression([
|
|
|
|
createSimpleExpression(`foo`, false),
|
|
|
|
createCallExpression(`bar`, [`baz`])
|
|
|
|
])
|
2019-10-02 03:43:59 +08:00
|
|
|
})
|
|
|
|
)
|
|
|
|
expect(code).toMatch(`return (foo, bar(baz))`)
|
|
|
|
expect(code).toMatchSnapshot()
|
|
|
|
})
|
2019-10-02 00:25:13 +08:00
|
|
|
|
2019-10-02 03:43:59 +08:00
|
|
|
test('ConditionalExpression', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
2019-10-03 01:11:07 +08:00
|
|
|
codegenNode: createConditionalExpression(
|
|
|
|
createSimpleExpression(`ok`, false),
|
|
|
|
createCallExpression(`foo`),
|
|
|
|
createConditionalExpression(
|
|
|
|
createSimpleExpression(`orNot`, false),
|
|
|
|
createCallExpression(`bar`),
|
|
|
|
createCallExpression(`baz`)
|
|
|
|
)
|
|
|
|
)
|
2019-10-02 03:43:59 +08:00
|
|
|
})
|
|
|
|
)
|
|
|
|
expect(code).toMatch(
|
2019-10-03 01:11:07 +08:00
|
|
|
`return ok
|
2019-10-02 03:43:59 +08:00
|
|
|
? foo()
|
|
|
|
: orNot
|
|
|
|
? bar()
|
2019-10-03 01:11:07 +08:00
|
|
|
: baz()`
|
2019-10-02 03:43:59 +08:00
|
|
|
)
|
|
|
|
expect(code).toMatchSnapshot()
|
|
|
|
})
|
2019-10-19 09:51:34 +08:00
|
|
|
|
|
|
|
test('CacheExpression', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
2019-10-21 05:00:11 +08:00
|
|
|
cached: 1,
|
2019-10-19 09:51:34 +08:00
|
|
|
codegenNode: createCacheExpression(
|
|
|
|
1,
|
|
|
|
createSimpleExpression(`foo`, false)
|
|
|
|
)
|
2019-10-21 05:00:11 +08:00
|
|
|
}),
|
|
|
|
{
|
|
|
|
mode: 'module',
|
|
|
|
prefixIdentifiers: true
|
|
|
|
}
|
2019-10-19 09:51:34 +08:00
|
|
|
)
|
2019-10-21 05:00:11 +08:00
|
|
|
expect(code).toMatch(`const _cache = _ctx.$cache`)
|
|
|
|
expect(code).toMatch(`_cache[1] || (_cache[1] = foo)`)
|
|
|
|
expect(code).toMatchSnapshot()
|
2019-10-19 09:51:34 +08:00
|
|
|
})
|
2019-10-24 05:57:40 +08:00
|
|
|
|
|
|
|
test('CacheExpression w/ isVNode: true', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
cached: 1,
|
|
|
|
codegenNode: createCacheExpression(
|
|
|
|
1,
|
|
|
|
createSimpleExpression(`foo`, false),
|
|
|
|
true
|
|
|
|
)
|
|
|
|
}),
|
|
|
|
{
|
|
|
|
mode: 'module',
|
|
|
|
prefixIdentifiers: true
|
|
|
|
}
|
|
|
|
)
|
|
|
|
expect(code).toMatch(`const _cache = _ctx.$cache`)
|
|
|
|
expect(code).toMatch(
|
|
|
|
`
|
|
|
|
_cache[1] || (
|
|
|
|
setBlockTracking(-1),
|
|
|
|
_cache[1] = foo,
|
|
|
|
setBlockTracking(1),
|
|
|
|
_cache[1]
|
|
|
|
)
|
|
|
|
`.trim()
|
|
|
|
)
|
|
|
|
expect(code).toMatchSnapshot()
|
|
|
|
})
|
2020-02-03 10:35:28 +08:00
|
|
|
|
|
|
|
test('TemplateLiteral', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createCallExpression(`_push`, [
|
|
|
|
createTemplateLiteral([
|
|
|
|
`foo`,
|
|
|
|
createCallExpression(`_renderAttr`, ['id', 'foo']),
|
|
|
|
`bar`
|
|
|
|
])
|
|
|
|
])
|
|
|
|
}),
|
|
|
|
{ ssr: true, mode: 'module' }
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
export function ssrRender(_ctx, _push, _parent) {
|
|
|
|
_push(\`foo\${_renderAttr(id, foo)}bar\`)
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
|
|
|
|
|
|
|
describe('IfStatement', () => {
|
|
|
|
test('if', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createBlockStatement([
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('foo', false),
|
|
|
|
createBlockStatement([createCallExpression(`ok`)])
|
|
|
|
)
|
|
|
|
])
|
|
|
|
}),
|
|
|
|
{ ssr: true, mode: 'module' }
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
export function ssrRender(_ctx, _push, _parent) {
|
|
|
|
if (foo) {
|
|
|
|
ok()
|
|
|
|
}
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
|
|
|
|
|
|
|
test('if/else', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createBlockStatement([
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('foo', false),
|
|
|
|
createBlockStatement([createCallExpression(`foo`)]),
|
|
|
|
createBlockStatement([createCallExpression('bar')])
|
|
|
|
)
|
|
|
|
])
|
|
|
|
}),
|
|
|
|
{ ssr: true, mode: 'module' }
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
export function ssrRender(_ctx, _push, _parent) {
|
|
|
|
if (foo) {
|
|
|
|
foo()
|
|
|
|
} else {
|
|
|
|
bar()
|
|
|
|
}
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
|
|
|
|
|
|
|
test('if/else-if', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createBlockStatement([
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('foo', false),
|
|
|
|
createBlockStatement([createCallExpression(`foo`)]),
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('bar', false),
|
|
|
|
createBlockStatement([createCallExpression(`bar`)])
|
|
|
|
)
|
|
|
|
)
|
|
|
|
])
|
|
|
|
}),
|
|
|
|
{ ssr: true, mode: 'module' }
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
export function ssrRender(_ctx, _push, _parent) {
|
|
|
|
if (foo) {
|
|
|
|
foo()
|
|
|
|
} else if (bar) {
|
|
|
|
bar()
|
|
|
|
}
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
|
|
|
|
|
|
|
test('if/else-if/else', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createBlockStatement([
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('foo', false),
|
|
|
|
createBlockStatement([createCallExpression(`foo`)]),
|
|
|
|
createIfStatement(
|
|
|
|
createSimpleExpression('bar', false),
|
|
|
|
createBlockStatement([createCallExpression(`bar`)]),
|
|
|
|
createBlockStatement([createCallExpression('baz')])
|
|
|
|
)
|
|
|
|
)
|
|
|
|
])
|
|
|
|
}),
|
|
|
|
{ ssr: true, mode: 'module' }
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
export function ssrRender(_ctx, _push, _parent) {
|
|
|
|
if (foo) {
|
|
|
|
foo()
|
|
|
|
} else if (bar) {
|
|
|
|
bar()
|
|
|
|
} else {
|
|
|
|
baz()
|
|
|
|
}
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
|
|
|
})
|
2020-02-05 11:49:47 +08:00
|
|
|
|
|
|
|
test('AssignmentExpression', () => {
|
|
|
|
const { code } = generate(
|
|
|
|
createRoot({
|
|
|
|
codegenNode: createAssignmentExpression(
|
|
|
|
createSimpleExpression(`foo`, false),
|
|
|
|
createSimpleExpression(`bar`, false)
|
|
|
|
)
|
|
|
|
})
|
|
|
|
)
|
|
|
|
expect(code).toMatchInlineSnapshot(`
|
|
|
|
"
|
|
|
|
return function render() {
|
|
|
|
with (this) {
|
|
|
|
return (foo = bar)
|
|
|
|
}
|
|
|
|
}"
|
|
|
|
`)
|
|
|
|
})
|
2019-09-20 11:05:51 +08:00
|
|
|
})
|