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333 lines
10 KiB
333 lines
10 KiB
import { parse } from 'compiler/parser/index'
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import { optimize } from 'compiler/optimizer'
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import { generate } from 'compiler/codegen'
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import { isObject } from 'shared/util'
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import { isReservedTag } from 'web/util/index'
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import { baseOptions } from 'web/compiler/index'
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function assertCodegen (template, generatedCode, ...args) {
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let staticRenderFnCodes = []
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let generateOptions = baseOptions
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let proc = null
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let len = args.length
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while (len--) {
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const arg = args[len]
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if (Array.isArray(arg)) {
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staticRenderFnCodes = arg
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} else if (isObject(arg)) {
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generateOptions = arg
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} else if (typeof arg === 'function') {
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proc = arg
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}
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}
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const ast = parse(template, baseOptions)
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optimize(ast, baseOptions)
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proc && proc(ast)
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const res = generate(ast, generateOptions)
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expect(res.render).toBe(generatedCode)
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expect(res.staticRenderFns).toEqual(staticRenderFnCodes)
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}
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/* eslint-disable quotes */
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describe('codegen', () => {
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it('generate directive', () => {
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assertCodegen(
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'<p v-custom1:arg1.modifier="value1" v-custom2><p>',
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`with(this){return _h('p',{directives:[{name:"custom1",rawName:"v-custom1:arg1.modifier",value:(value1),expression:"value1",arg:"arg1",modifiers:{"modifier":true}},{name:"custom2",rawName:"v-custom2",arg:"arg1"}]})}`
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)
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})
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it('generate v-for directive', () => {
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assertCodegen(
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'<li v-for="item in items" :key="item.uid"></li>',
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`with(this){return _l((items),function(item){return _h('li',{key:item.uid})})}`
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)
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// iterator syntax
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assertCodegen(
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'<li v-for="(item, i) in items"></li>',
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`with(this){return _l((items),function(item,i){return _h('li')})}`
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)
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assertCodegen(
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'<li v-for="(item, key, index) in items"></li>',
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`with(this){return _l((items),function(item,key,index){return _h('li')})}`
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)
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})
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it('generate v-if directive', () => {
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assertCodegen(
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'<p v-if="show">hello</p>',
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`with(this){return (show)?_h('p',["hello"]):_e()}`
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)
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})
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it('generate v-else directive', () => {
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assertCodegen(
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'<div><p v-if="show">hello</p><p v-else>world</p></div>',
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`with(this){return _h('div',[(show)?_h('p',["hello"]):_h('p',["world"])])}`
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)
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})
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it('generate ref', () => {
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assertCodegen(
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'<p ref="component1"></p>',
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`with(this){return _h('p',{ref:"component1"})}`
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)
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})
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it('generate ref on v-for', () => {
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assertCodegen(
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'<ul><li v-for="item in items" ref="component1"></li></ul>',
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`with(this){return _h('ul',[_l((items),function(item){return _h('li',{ref:"component1",refInFor:true})})])}`
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)
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})
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it('generate v-bind directive', () => {
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assertCodegen(
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'<p v-bind="test"></p>',
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`with(this){return _h('p',_b({},test))}`
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)
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})
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it('generate template tag', () => {
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assertCodegen(
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'<template><p>{{hello}}</p></template>',
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`with(this){return [_h('p',[_s(hello)])]}`
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)
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})
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it('generate single slot', () => {
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assertCodegen(
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'<slot></slot>',
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`with(this){return _t("default")}`
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)
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})
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it('generate named slot', () => {
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assertCodegen(
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'<slot name="one"></slot>',
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`with(this){return _t("one")}`
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)
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})
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it('generate slot fallback content', () => {
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assertCodegen(
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'<slot><div>hi</div></slot>',
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`with(this){return _t("default",[_m(0)])}`,
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[`with(this){return _h('div',["hi"])}`]
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)
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})
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it('generate slot target', () => {
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assertCodegen(
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'<p slot="one">hello world</p>',
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`with(this){return _h('p',{slot:"one"},["hello world"])}`
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)
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})
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it('generate class binding', () => {
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// static
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assertCodegen(
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'<p class="class1">hello world</p>',
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'with(this){return _m(0)}',
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[`with(this){return _h('p',{staticClass:"class1"},["hello world"])}`]
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)
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// dynamic
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assertCodegen(
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'<p :class="class1">hello world</p>',
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`with(this){return _h('p',{class:class1},["hello world"])}`
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)
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})
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it('generate style binding', () => {
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assertCodegen(
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'<p :style="error">hello world</p>',
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`with(this){return _h('p',{style:(error)},["hello world"])}`
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)
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})
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it('generate v-show directive', () => {
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assertCodegen(
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'<p v-show="shown">hello world</p>',
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`with(this){return _h('p',{directives:[{name:"show",rawName:"v-show",value:(shown),expression:"shown"}]},["hello world"])}`
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)
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})
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it('generate DOM props with v-bind directive', () => {
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assertCodegen(
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'<p :value="msg">',
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`with(this){return _h('p',{domProps:{"value":msg}})}`
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)
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})
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it('generate attrs with v-bind directive', () => {
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assertCodegen(
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'<input :name="field1">',
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`with(this){return _h('input',{attrs:{"name":field1}})}`
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)
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})
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it('generate static attrs', () => {
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assertCodegen(
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'<input name="field1">',
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`with(this){return _m(0)}`,
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[`with(this){return _h('input',{attrs:{"name":"field1"}})}`]
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)
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})
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it('generate events with v-on directive', () => {
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assertCodegen(
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'<input @input="onInput">',
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`with(this){return _h('input',{on:{"input":onInput}})}`
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)
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})
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it('generate events with keycode', () => {
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assertCodegen(
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'<input @input.enter="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==13)return;onInput($event)}}})}`
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)
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// multiple keycodes (delete)
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assertCodegen(
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'<input @input.delete="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==8&&$event.keyCode!==46)return;onInput($event)}}})}`
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)
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// multiple keycodes (chained)
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assertCodegen(
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'<input @keydown.enter.delete="onInput">',
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`with(this){return _h('input',{on:{"keydown":function($event){if($event.keyCode!==13&&$event.keyCode!==8&&$event.keyCode!==46)return;onInput($event)}}})}`
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)
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// number keycode
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assertCodegen(
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'<input @input.13="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==13)return;onInput($event)}}})}`
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)
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// custom keycode
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assertCodegen(
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'<input @input.custom="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==_k("custom"))return;onInput($event)}}})}`
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)
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})
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it('generate events with modifiers', () => {
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assertCodegen(
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'<input @input.stop="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){$event.stopPropagation();onInput($event)}}})}`
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)
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assertCodegen(
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'<input @input.prevent="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){$event.preventDefault();onInput($event)}}})}`
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)
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assertCodegen(
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'<input @input.self="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return;onInput($event)}}})}`
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)
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})
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it('generate events with multiple modifers', () => {
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assertCodegen(
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'<input @input.stop.prevent.self="onInput">',
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`with(this){return _h('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return;onInput($event)}}})}`
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)
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})
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it('generate events with capture modifier', () => {
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assertCodegen(
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'<input @input.capture="onInput">',
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`with(this){return _h('input',{on:{"!input":function($event){onInput($event)}}})}`
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)
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})
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it('generate events with inline statement', () => {
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assertCodegen(
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'<input @input="curent++">',
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`with(this){return _h('input',{on:{"input":function($event){curent++}}})}`
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)
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})
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// #3893
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it('should not treat handler with unexpected whitespace as inline statement', () => {
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assertCodegen(
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'<input @input=" onInput ">',
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`with(this){return _h('input',{on:{"input": onInput }})}`
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)
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})
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it('generate unhandled events', () => {
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assertCodegen(
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'<input @input="curent++">',
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`with(this){return _h('input',{on:{"input":function(){}}})}`,
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ast => {
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ast.events.input = undefined
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}
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)
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})
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it('generate multiple event handlers', () => {
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assertCodegen(
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'<input @input="curent++" @input="onInput">',
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`with(this){return _h('input',{on:{"input":[function($event){curent++},onInput]}})}`
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)
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})
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it('generate component', () => {
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assertCodegen(
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'<my-component name="mycomponent1" :msg="msg" @notify="onNotify"><div>hi</div></my-component>',
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`with(this){return _h('my-component',{attrs:{"name":"mycomponent1","msg":msg},on:{"notify":onNotify}},[_h('div',["hi"])])}`
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)
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})
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it('generate svg component with children', () => {
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assertCodegen(
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'<svg><my-comp><circle :r="10"></circle></my-comp></svg>',
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`with(this){return _h('svg',[_h('my-comp',[_h('circle',{attrs:{"r":10}})])])}`
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)
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})
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it('generate is attribute', () => {
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assertCodegen(
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'<div is="component1"></div>',
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`with(this){return _h("component1",{tag:"div"})}`
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)
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assertCodegen(
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'<div :is="component1"></div>',
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`with(this){return _h(component1,{tag:"div"})}`
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)
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})
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it('generate component with inline-template', () => {
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// have "inline-template'"
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assertCodegen(
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'<my-component inline-template><p>hello world</p></my-component>',
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`with(this){return _h('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _h('p',["hello world"])}}]}})}`
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)
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// "have inline-template attrs, but not having extactly one child element
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assertCodegen(
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'<my-component inline-template><hr><hr></my-component>',
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`with(this){return _h('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _h('hr')}}]}})}`
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)
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expect('Inline-template components must have exactly one child element.').toHaveBeenWarned()
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})
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it('generate static trees inside v-for', () => {
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assertCodegen(
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`<div><div v-for="i in 10"><span></span></div></div>`,
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`with(this){return _h('div',[_l((10),function(i){return _h('div',[_m(0,true)])})])}`,
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[`with(this){return _h('span')}`]
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)
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})
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it('not specified ast type', () => {
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const res = generate(null, baseOptions)
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expect(res.render).toBe(`with(this){return _h("div")}`)
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expect(res.staticRenderFns).toEqual([])
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})
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it('not specified directives option', () => {
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assertCodegen(
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'<p v-if="show">hello world</p>',
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`with(this){return (show)?_h('p',["hello world"]):_e()}`,
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{ isReservedTag }
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)
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})
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})
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/* eslint-enable quotes */
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