788 lines
20 KiB
TypeScript
788 lines
20 KiB
TypeScript
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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createCallExpression,
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createConditionalExpression,
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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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IfConditionalExpression,
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createVNodeCall,
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VNodeCall,
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DirectiveArguments,
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ConstantTypes
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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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FRAGMENT,
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RENDER_LIST,
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CREATE_ELEMENT_VNODE
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} from '../src/runtimeHelpers'
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import { createElementWithCodegen, genFlagText } from './testUtils'
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import { PatchFlags } from '@vue/shared'
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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 { ${helperNameMap[CREATE_VNODE]} as _${
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helperNameMap[CREATE_VNODE]
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}, ${helperNameMap[RESOLVE_DIRECTIVE]} as _${
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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('module mode preamble w/ optimizeImports: 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, { mode: 'module', optimizeImports: true })
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expect(code).toMatch(
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`import { ${helperNameMap[CREATE_VNODE]}, ${
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helperNameMap[RESOLVE_DIRECTIVE]
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} } from "vue"`
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)
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expect(code).toMatch(
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`const _${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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}`
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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[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('assets + temps', () => {
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const root = createRoot({
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components: [`Foo`, `bar-baz`, `barbaz`, `Qux__self`],
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directives: [`my_dir_0`, `my_dir_1`],
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temps: 3
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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 = _${
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helperNameMap[RESOLVE_COMPONENT]
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}("barbaz")\n`
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)
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// implicit self reference from SFC filename
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expect(code).toMatch(
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`const _component_Qux = _${
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helperNameMap[RESOLVE_COMPONENT]
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}("Qux", true)\n`
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)
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expect(code).toMatch(
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`const _directive_my_dir_0 = _${
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helperNameMap[RESOLVE_DIRECTIVE]
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}("my_dir_0")\n`
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)
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expect(code).toMatch(
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`const _directive_my_dir_1 = _${
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helperNameMap[RESOLVE_DIRECTIVE]
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}("my_dir_1")\n`
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)
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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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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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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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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 _${helperNameMap[TO_DISPLAY_STRING]}(hello)`)
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expect(code).toMatchSnapshot()
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})
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test('comment', () => {
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const { code } = generate(
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createRoot({
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codegenNode: {
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type: NodeTypes.COMMENT,
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content: 'foo',
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loc: locStub
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}
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})
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)
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expect(code).toMatch(`return _${helperNameMap[CREATE_COMMENT]}("foo")`)
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expect(code).toMatchSnapshot()
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})
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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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// nested compound
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createCompoundExpression([` + `, `nested`])
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])
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})
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)
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expect(code).toMatch(
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`return _ctx.foo + _${helperNameMap[TO_DISPLAY_STRING]}(bar) + nested`
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)
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expect(code).toMatchSnapshot()
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})
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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: createConditionalExpression(
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createSimpleExpression('foo', false),
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createSimpleExpression('bar', false),
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createSimpleExpression('baz', false)
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) as IfConditionalExpression
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}
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})
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)
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expect(code).toMatch(/return foo\s+\? bar\s+: baz/)
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expect(code).toMatchSnapshot()
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})
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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: {
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type: NodeTypes.VNODE_CALL,
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tag: FRAGMENT,
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isBlock: true,
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disableTracking: true,
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props: undefined,
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children: createCallExpression(RENDER_LIST),
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patchFlag: '1',
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dynamicProps: undefined,
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directives: undefined,
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loc: locStub
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} as ForCodegenNode
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}
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})
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)
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expect(code).toMatch(`openBlock(true)`)
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expect(code).toMatchSnapshot()
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})
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test('forNode with constant expression', () => {
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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(
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'1 + 2',
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false,
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locStub,
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ConstantTypes.CAN_STRINGIFY
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),
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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: {
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type: NodeTypes.VNODE_CALL,
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tag: FRAGMENT,
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isBlock: true,
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disableTracking: false,
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props: undefined,
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children: createCallExpression(RENDER_LIST),
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patchFlag: genFlagText(PatchFlags.STABLE_FRAGMENT),
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dynamicProps: undefined,
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directives: undefined,
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loc: locStub
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} as ForCodegenNode
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}
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})
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)
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expect(code).toMatch(`openBlock()`)
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expect(code).toMatchSnapshot()
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})
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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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// 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_ELEMENT_VNODE]}("div", {
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id: "foo",
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[prop]: bar,
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[foo + bar]: bar
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}, [
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_${helperNameMap[CREATE_ELEMENT_VNODE]}("p", { "some-key": "foo" })
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], ${PatchFlags.FULL_PROPS})`)
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expect(code).toMatchSnapshot()
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})
|
|
|
|
test('ArrayExpression', () => {
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const { code } = generate(
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createRoot({
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codegenNode: createArrayExpression([
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createSimpleExpression(`foo`, false),
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createCallExpression(`bar`, [`baz`])
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])
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})
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)
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|
expect(code).toMatch(`return [
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foo,
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bar(baz)
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]`)
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expect(code).toMatchSnapshot()
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|
})
|
|
|
|
test('ConditionalExpression', () => {
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const { code } = generate(
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createRoot({
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codegenNode: createConditionalExpression(
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createSimpleExpression(`ok`, false),
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createCallExpression(`foo`),
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createConditionalExpression(
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createSimpleExpression(`orNot`, false),
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createCallExpression(`bar`),
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createCallExpression(`baz`)
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)
|
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)
|
|
})
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)
|
|
expect(code).toMatch(
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`return ok
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? foo()
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: orNot
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|
? bar()
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|
: baz()`
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)
|
|
expect(code).toMatchSnapshot()
|
|
})
|
|
|
|
test('CacheExpression', () => {
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|
const { code } = generate(
|
|
createRoot({
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cached: 1,
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|
codegenNode: createCacheExpression(
|
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1,
|
|
createSimpleExpression(`foo`, false)
|
|
)
|
|
}),
|
|
{
|
|
mode: 'module',
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|
prefixIdentifiers: true
|
|
}
|
|
)
|
|
expect(code).toMatch(`_cache[1] || (_cache[1] = foo)`)
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|
expect(code).toMatchSnapshot()
|
|
})
|
|
|
|
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(
|
|
`
|
|
_cache[1] || (
|
|
_setBlockTracking(-1),
|
|
_cache[1] = foo,
|
|
_setBlockTracking(1),
|
|
_cache[1]
|
|
)
|
|
`.trim()
|
|
)
|
|
expect(code).toMatchSnapshot()
|
|
})
|
|
|
|
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, _attrs) {
|
|
_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, _attrs) {
|
|
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, _attrs) {
|
|
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, _attrs) {
|
|
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, _attrs) {
|
|
if (foo) {
|
|
foo()
|
|
} else if (bar) {
|
|
bar()
|
|
} else {
|
|
baz()
|
|
}
|
|
}"
|
|
`)
|
|
})
|
|
})
|
|
|
|
test('AssignmentExpression', () => {
|
|
const { code } = generate(
|
|
createRoot({
|
|
codegenNode: createAssignmentExpression(
|
|
createSimpleExpression(`foo`, false),
|
|
createSimpleExpression(`bar`, false)
|
|
)
|
|
})
|
|
)
|
|
expect(code).toMatchInlineSnapshot(`
|
|
"
|
|
return function render(_ctx, _cache) {
|
|
with (_ctx) {
|
|
return foo = bar
|
|
}
|
|
}"
|
|
`)
|
|
})
|
|
|
|
describe('VNodeCall', () => {
|
|
function genCode(node: VNodeCall) {
|
|
return generate(
|
|
createRoot({
|
|
codegenNode: node
|
|
})
|
|
).code.match(/with \(_ctx\) \{\s+([^]+)\s+\}\s+\}$/)![1]
|
|
}
|
|
|
|
const mockProps = createObjectExpression([
|
|
createObjectProperty(`foo`, createSimpleExpression(`bar`, true))
|
|
])
|
|
const mockChildren = createCompoundExpression(['children'])
|
|
const mockDirs = createArrayExpression([
|
|
createArrayExpression([`foo`, createSimpleExpression(`bar`, false)])
|
|
]) as DirectiveArguments
|
|
|
|
test('tag only', () => {
|
|
expect(genCode(createVNodeCall(null, `"div"`))).toMatchInlineSnapshot(`
|
|
"return _createElementVNode(\\"div\\")
|
|
"
|
|
`)
|
|
expect(genCode(createVNodeCall(null, FRAGMENT))).toMatchInlineSnapshot(`
|
|
"return _createElementVNode(_Fragment)
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('with props', () => {
|
|
expect(genCode(createVNodeCall(null, `"div"`, mockProps)))
|
|
.toMatchInlineSnapshot(`
|
|
"return _createElementVNode(\\"div\\", { foo: \\"bar\\" })
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('with children, no props', () => {
|
|
expect(genCode(createVNodeCall(null, `"div"`, undefined, mockChildren)))
|
|
.toMatchInlineSnapshot(`
|
|
"return _createElementVNode(\\"div\\", null, children)
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('with children + props', () => {
|
|
expect(genCode(createVNodeCall(null, `"div"`, mockProps, mockChildren)))
|
|
.toMatchInlineSnapshot(`
|
|
"return _createElementVNode(\\"div\\", { foo: \\"bar\\" }, children)
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('with patchFlag and no children/props', () => {
|
|
expect(genCode(createVNodeCall(null, `"div"`, undefined, undefined, '1')))
|
|
.toMatchInlineSnapshot(`
|
|
"return _createElementVNode(\\"div\\", null, null, 1)
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('as block', () => {
|
|
expect(
|
|
genCode(
|
|
createVNodeCall(
|
|
null,
|
|
`"div"`,
|
|
mockProps,
|
|
mockChildren,
|
|
undefined,
|
|
undefined,
|
|
undefined,
|
|
true
|
|
)
|
|
)
|
|
).toMatchInlineSnapshot(`
|
|
"return (_openBlock(), _createElementBlock(\\"div\\", { foo: \\"bar\\" }, children))
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('as for block', () => {
|
|
expect(
|
|
genCode(
|
|
createVNodeCall(
|
|
null,
|
|
`"div"`,
|
|
mockProps,
|
|
mockChildren,
|
|
undefined,
|
|
undefined,
|
|
undefined,
|
|
true,
|
|
true
|
|
)
|
|
)
|
|
).toMatchInlineSnapshot(`
|
|
"return (_openBlock(true), _createElementBlock(\\"div\\", { foo: \\"bar\\" }, children))
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('with directives', () => {
|
|
expect(
|
|
genCode(
|
|
createVNodeCall(
|
|
null,
|
|
`"div"`,
|
|
mockProps,
|
|
mockChildren,
|
|
undefined,
|
|
undefined,
|
|
mockDirs
|
|
)
|
|
)
|
|
).toMatchInlineSnapshot(`
|
|
"return _withDirectives(_createElementVNode(\\"div\\", { foo: \\"bar\\" }, children), [
|
|
[foo, bar]
|
|
])
|
|
"
|
|
`)
|
|
})
|
|
|
|
test('block + directives', () => {
|
|
expect(
|
|
genCode(
|
|
createVNodeCall(
|
|
null,
|
|
`"div"`,
|
|
mockProps,
|
|
mockChildren,
|
|
undefined,
|
|
undefined,
|
|
mockDirs,
|
|
true
|
|
)
|
|
)
|
|
).toMatchInlineSnapshot(`
|
|
"return _withDirectives((_openBlock(), _createElementBlock(\\"div\\", { foo: \\"bar\\" }, children)), [
|
|
[foo, bar]
|
|
])
|
|
"
|
|
`)
|
|
})
|
|
})
|
|
})
|