577 lines
16 KiB
TypeScript
577 lines
16 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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createSequenceExpression,
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createCallExpression,
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createConditionalExpression
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} from '../src'
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import { CREATE_VNODE, COMMENT, TO_STRING } from '../src/runtimeConstants'
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import { createElementWithCodegen } from './testUtils'
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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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imports: [],
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statements: [],
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hoists: [],
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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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imports: [`helperOne`, `helperTwo`]
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})
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const { code } = generate(root, { mode: 'module' })
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expect(code).toMatch(`import { helperOne, helperTwo } from "vue"`)
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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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imports: [`helperOne`, `helperTwo`]
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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 { helperOne: _helperOne, helperTwo: _helperTwo } = _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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imports: [`helperOne`, `helperTwo`]
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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(`const { helperOne, helperTwo } = Vue`)
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expect(code).toMatchSnapshot()
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})
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test('statements', () => {
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const root = createRoot({
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statements: [`const a = 1`, `const b = 2`]
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})
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const { code } = generate(root, { mode: 'function' })
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expect(code).toMatch(`const a = 1\n`)
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expect(code).toMatch(`const b = 2\n`)
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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('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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children: [
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{
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type: NodeTypes.TEXT,
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content: 'hello',
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isEmpty: false,
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loc: locStub
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}
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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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children: [createInterpolation(`hello`, locStub)]
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})
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)
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expect(code).toMatch(`return _${TO_STRING}(hello)`)
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expect(code).toMatchSnapshot()
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})
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test('comment', () => {
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const { code } = generate(
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createRoot({
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children: [
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{
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type: NodeTypes.COMMENT,
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content: 'foo',
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loc: locStub
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}
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]
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})
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)
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expect(code).toMatch(`return _${CREATE_VNODE}(_${COMMENT}, 0, "foo")`)
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expect(code).toMatchSnapshot()
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})
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test('text + comment + interpolation', () => {
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const { code } = generate(
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createRoot({
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children: [
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{
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type: NodeTypes.TEXT,
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content: 'foo',
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isEmpty: false,
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loc: locStub
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},
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createInterpolation(`hello`, locStub),
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{
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type: NodeTypes.COMMENT,
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content: 'foo',
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loc: locStub
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}
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]
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})
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)
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expect(code).toMatch(`
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return [
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"foo",
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_${TO_STRING}(hello),
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_${CREATE_VNODE}(_${COMMENT}, 0, "foo")
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]`)
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expect(code).toMatchSnapshot()
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})
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test('text + comment + interpolation w/ prefixIdentifiers: true', () => {
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const { code } = generate(
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createRoot({
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children: [
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{
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type: NodeTypes.TEXT,
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content: 'foo',
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isEmpty: false,
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loc: locStub
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},
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createInterpolation(`hello`, locStub),
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{
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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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{
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prefixIdentifiers: true
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}
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)
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expect(code).toMatch(`
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return [
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"foo",
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${TO_STRING}(hello),
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${CREATE_VNODE}(${COMMENT}, 0, "foo")
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]`)
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expect(code).toMatchSnapshot()
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})
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test('compound expression', () => {
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const { code } = generate(
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createRoot({
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children: [
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createCompoundExpression([
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`_ctx.`,
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createSimpleExpression(`foo`, false, locStub),
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` + `,
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{
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type: NodeTypes.INTERPOLATION,
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loc: locStub,
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content: createSimpleExpression(`bar`, false, locStub)
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}
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])
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]
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})
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)
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expect(code).toMatch(`return _ctx.foo + _${TO_STRING}(bar)`)
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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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children: [
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{
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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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])
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}
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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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// test('forNode', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.FOR,
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// loc: locStub,
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// source: createSimpleExpression(`list`, false, locStub),
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// valueAlias: createSimpleExpression(`v`, false, locStub),
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// keyAlias: createSimpleExpression(`k`, false, locStub),
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// objectIndexAlias: createSimpleExpression(`i`, false, locStub),
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// children: [createInterpolation(`v`, locStub)]
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// }
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// ]
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// })
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// )
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// expect(code).toMatch(
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// `return _${RENDER_LIST}(list, (v, k, i) => {
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// return _${TO_STRING}(v)
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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// test('forNode w/ prefixIdentifiers: true', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.FOR,
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// loc: locStub,
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// source: createSimpleExpression(`list`, false, locStub),
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// valueAlias: createSimpleExpression(`v`, false, locStub),
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// keyAlias: createSimpleExpression(`k`, false, locStub),
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// objectIndexAlias: createSimpleExpression(`i`, false, locStub),
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// children: [createInterpolation(`v`, locStub)]
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// }
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// ]
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// }),
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// {
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// prefixIdentifiers: true
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// }
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// )
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// expect(code).toMatch(
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// `return ${RENDER_LIST}(list, (v, k, i) => {
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// return ${TO_STRING}(v)
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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// test('forNode w/ skipped value alias', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.FOR,
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// loc: locStub,
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// source: createSimpleExpression(`list`, false, locStub),
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// valueAlias: undefined,
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// keyAlias: createSimpleExpression(`k`, false, locStub),
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// objectIndexAlias: createSimpleExpression(`i`, false, locStub),
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// children: [createInterpolation(`v`, locStub)]
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// }
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// ]
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// })
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// )
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// expect(code).toMatch(
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// `return _${RENDER_LIST}(list, (__value, k, i) => {
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// return _${TO_STRING}(v)
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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// test('forNode w/ skipped key alias', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.FOR,
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// loc: locStub,
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// source: createSimpleExpression(`list`, false, locStub),
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// valueAlias: createSimpleExpression(`v`, false, locStub),
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// keyAlias: undefined,
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// objectIndexAlias: createSimpleExpression(`i`, false, locStub),
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// children: [createInterpolation(`v`, locStub)]
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// }
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// ]
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// })
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// )
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// expect(code).toMatch(
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// `return _${RENDER_LIST}(list, (v, __key, i) => {
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// return _${TO_STRING}(v)
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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// test('forNode w/ skipped value and key aliases', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.FOR,
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// loc: locStub,
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// source: createSimpleExpression(`list`, false, locStub),
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// valueAlias: undefined,
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// keyAlias: undefined,
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// objectIndexAlias: createSimpleExpression(`i`, false, locStub),
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// children: [createInterpolation(`v`, locStub)]
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// }
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// ]
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// })
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// )
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// expect(code).toMatch(
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// `return _${RENDER_LIST}(list, (__value, __key, i) => {
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// return _${TO_STRING}(v)
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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// test('SlotFunctionExpression', () => {
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// const { code } = generate(
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// createRoot({
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// children: [
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// {
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// type: NodeTypes.ELEMENT,
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// tagType: ElementTypes.COMPONENT,
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// ns: Namespaces.HTML,
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// isSelfClosing: false,
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// tag: `Comp`,
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// loc: locStub,
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// props: [],
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// children: [],
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// codegenNode: {
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// type: NodeTypes.JS_CALL_EXPRESSION,
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// loc: locStub,
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// callee: `_${CREATE_VNODE}`,
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// arguments: [
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// `Comp`,
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// `0`,
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// {
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// type: NodeTypes.JS_OBJECT_EXPRESSION,
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// loc: locStub,
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// properties: [
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// {
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// type: NodeTypes.JS_PROPERTY,
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// loc: locStub,
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// key: {
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// type: NodeTypes.SIMPLE_EXPRESSION,
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// isStatic: true,
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// content: `default`,
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// loc: locStub
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// },
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// value: {
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// type: NodeTypes.JS_FUNCTION_EXPRESSION,
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// loc: locStub,
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// params: {
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// type: NodeTypes.SIMPLE_EXPRESSION,
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// isStatic: false,
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// content: `{ foo }`,
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// loc: locStub
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// },
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// returns: [
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// {
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// type: NodeTypes.INTERPOLATION,
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// loc: locStub,
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// content: {
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// type: NodeTypes.SIMPLE_EXPRESSION,
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// isStatic: false,
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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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// }
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// }
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// ]
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// }
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// ]
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// }
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// }
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// ]
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// })
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// )
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// expect(code).toMatch(
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// `return _createVNode(Comp, 0, {
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// default: ({ foo }) => [
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// _toString(foo)
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// ]
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// })`
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// )
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// expect(code).toMatchSnapshot()
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// })
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test('callExpression + objectExpression + arrayExpression', () => {
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const { code } = generate(
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createRoot({
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children: [
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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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// ArrayExpression
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createArrayExpression(
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[
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'foo',
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{
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type: NodeTypes.JS_CALL_EXPRESSION,
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loc: locStub,
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callee: CREATE_VNODE,
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arguments: [`"p"`]
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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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})
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)
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expect(code).toMatch(`
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return ${CREATE_VNODE}("div", {
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id: "foo",
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[prop]: bar,
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[foo + bar]: bar
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}, [
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${CREATE_VNODE}("p", { "some-key": "foo" })
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], [
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foo,
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${CREATE_VNODE}("p")
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])`)
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expect(code).toMatchSnapshot()
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})
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|
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test('SequenceExpression', () => {
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const { code } = generate(
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createRoot({
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children: [
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{
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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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createCallExpression(`bar`, [`baz`])
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])
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}
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]
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})
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)
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expect(code).toMatch(`return (foo, bar(baz))`)
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expect(code).toMatchSnapshot()
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})
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|
|
test('ConditionalExpression', () => {
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const { code } = generate(
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createRoot({
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children: [
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{
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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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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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])
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}
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]
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})
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)
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expect(code).toMatch(
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`return (foo, 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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)
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expect(code).toMatchSnapshot()
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})
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})
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