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import { parse } from 'compiler/parser/index'
import { optimize } from 'compiler/optimizer'
import { generate } from 'compiler/codegen'
import { isObject } from 'shared/util'
import directives from 'web/compiler/directives/index'
import { isReservedTag } from 'web/util/index'
import { baseOptions } from 'web/compiler/index'
function assertCodegen (template, generatedCode, ...args) {
let staticRenderFnCodes = []
let generateOptions = baseOptions
let proc = null
let len = args.length
while (len--) {
const arg = args[len]
if (Array.isArray(arg)) {
staticRenderFnCodes = arg
} else if (isObject(arg)) {
generateOptions = arg
} else if (typeof arg === 'function') {
proc = arg
}
}
const ast = parse(template, baseOptions)
optimize(ast, baseOptions)
proc && proc(ast)
const res = generate(ast, generateOptions)
expect(res.render).toBe(generatedCode)
expect(res.staticRenderFns).toEqual(staticRenderFnCodes)
}
/* eslint-disable quotes */
describe('codegen', () => {
it('generate directive', () => {
assertCodegen(
'<p v-custom1:arg1.modifire="value1" v-custom2><p>',
`with(this){return _h('p',{directives:[{name:"custom1",value:(value1),expression:"value1",arg:"arg1",modifiers:{"modifire":true}},{name:"custom2",arg:"arg1"}]})}`
)
})
it('generate v-for directive', () => {
assertCodegen(
'<li v-for="item in items" :key="item.uid"></li>',
`with(this){return (items)&&_l((items),function(item){return _h('li',{key:item.uid})})}`
)
// iterator syntax
assertCodegen(
'<li v-for="(item, i) in items"></li>',
`with(this){return (items)&&_l((items),function(item,i){return _h('li')})}`
)
assertCodegen(
'<li v-for="(item, key, index) in items"></li>',
`with(this){return (items)&&_l((items),function(item,key,index){return _h('li')})}`
)
})
it('generate v-if directive', () => {
assertCodegen(
'<p v-if="show">hello</p>',
`with(this){return (show)?_h('p',["hello"]):void 0}`
)
})
it('generate v-else directive', () => {
assertCodegen(
'<div><p v-if="show">hello</p><p v-else>world</p></div>',
`with(this){return _h('div',[(show)?_h('p',["hello"]):_h('p',["world"])])}`
)
})
it('generate ref', () => {
assertCodegen(
'<p ref="component1"></p>',
`with(this){return _h('p',{ref:"component1"})}`
)
})
it('generate ref on v-for', () => {
assertCodegen(
'<ul><li v-for="item in items" ref="component1"></li></ul>',
`with(this){return _h('ul',[(items)&&_l((items),function(item){return _h('li',{ref:"component1",refInFor:true})})])}`
)
})
it('generate v-bind directive', () => {
assertCodegen(
'<p v-bind="test"></p>',
`with(this){return _h('p',{hook:{"construct":function(n1,n2){_b(n1,test)}}})}`
)
})
it('generate template tag', () => {
assertCodegen(
'<template><p>{{hello}}</p></template>',
`with(this){return [_h('p',[_s(hello)])]}`
)
})
it('generate single slot', () => {
assertCodegen(
'<slot></slot>',
`with(this){return $slots["default"]}`
)
})
it('generate named slot', () => {
assertCodegen(
'<slot name="one"></slot>',
`with(this){return $slots["one"]}`
)
})
it('generate slot fallback content', () => {
assertCodegen(
'<slot><div>hi</div></slot>',
`with(this){return ($slots["default"]||[_m(0)])}`,
[`with(this){return _h('div',["hi"])}`]
)
})
it('generate slot target', () => {
assertCodegen(
'<p slot="one">hello world</p>',
`with(this){return _h('p',{slot:"one"},["hello world"])}`
)
})
it('generate class binding', () => {
// static
assertCodegen(
'<p class="class1">hello world</p>',
'with(this){return _m(0)}',
[`with(this){return _h('p',{staticClass:"class1"},["hello world"])}`]
)
// dynamic
assertCodegen(
'<p :class="class1">hello world</p>',
`with(this){return _h('p',{class:class1},["hello world"])}`
)
})
it('generate style binding', () => {
assertCodegen(
'<p :style="error">hello world</p>',
`with(this){return _h('p',{style:(error)},["hello world"])}`
)
})
it('generate transition', () => {
assertCodegen(
'<p transition="expand">hello world</p>',
`with(this){return _h('p',{transition:"expand"},["hello world"])}`
)
})
it('generate dynamic transition with transition on appear', () => {
assertCodegen(
`<p :transition="{name:'expand',appear:true}">hello world</p>`,
`with(this){return _h('p',{transition:{name:'expand',appear:true}},["hello world"])}`
)
})
it('generate v-show directive', () => {
assertCodegen(
'<p v-show="shown">hello world</p>',
`with(this){return _h('p',{directives:[{name:"show",value:(shown),expression:"shown"}],show:true},["hello world"])}`
)
})
it('generate props with v-bind directive', () => {
assertCodegen(
'<p :value="msg">',
`with(this){return _h('p',{props:{"value":msg}})}`
)
})
it('generate attrs with v-bind directive', () => {
assertCodegen(
'<input :name="field1">',
`with(this){return _h('input',{attrs:{"name":field1}})}`
)
})
it('generate staticAttrs', () => {
assertCodegen(
'<input name="field1">',
`with(this){return _m(0)}`,
[`with(this){return _h('input',{staticAttrs:{"name":"field1"}})}`]
)
})
it('generate events with v-on directive', () => {
assertCodegen(
'<input @input="onInput">',
`with(this){return _h('input',{on:{"input":onInput}})}`
)
})
it('generate events with keycode', () => {
assertCodegen(
'<input @input.enter="onInput">',
`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==13)return;onInput($event)}}})}`
)
// multiple keycodes (delete)
assertCodegen(
'<input @input.delete="onInput">',
`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==8&&$event.keyCode!==46)return;onInput($event)}}})}`
)
// number keycode
assertCodegen(
'<input @input.13="onInput">',
`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==13)return;onInput($event)}}})}`
)
// custom keycode
assertCodegen(
'<input @input.custom="onInput">',
`with(this){return _h('input',{on:{"input":function($event){if($event.keyCode!==_k("custom"))return;onInput($event)}}})}`
)
})
it('generate events with modifiers', () => {
assertCodegen(
'<input @input.stop="onInput">',
`with(this){return _h('input',{on:{"input":function($event){$event.stopPropagation();onInput($event)}}})}`
)
assertCodegen(
'<input @input.prevent="onInput">',
`with(this){return _h('input',{on:{"input":function($event){$event.preventDefault();onInput($event)}}})}`
)
assertCodegen(
'<input @input.self="onInput">',
`with(this){return _h('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return;onInput($event)}}})}`
)
})
it('generate events with multiple modifers', () => {
assertCodegen(
'<input @input.stop.prevent.self="onInput">',
`with(this){return _h('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return;onInput($event)}}})}`
)
})
it('generate events with capture modifier', () => {
assertCodegen(
'<input @input.capture="onInput">',
`with(this){return _h('input',{on:{"!input":function($event){onInput($event)}}})}`
)
})
it('generate events with inline statement', () => {
assertCodegen(
'<input @input="curent++">',
`with(this){return _h('input',{on:{"input":function($event){curent++}}})}`
)
})
it('generate unhandled events', () => {
assertCodegen(
'<input @input="curent++">',
`with(this){return _h('input',{on:{"input":function(){}}})}`,
ast => {
ast.events.input = undefined
}
)
})
it('generate multiple event handlers', () => {
assertCodegen(
'<input @input="curent++" @input="onInput">',
`with(this){return _h('input',{on:{"input":[function($event){curent++},onInput]}})}`
)
})
it('generate component', () => {
assertCodegen(
'<my-component name="mycomponent1" :msg="msg" @notify="onNotify"><div>hi</div></my-component>',
`with(this){return _h('my-component',{attrs:{"msg":msg},staticAttrs:{"name":"mycomponent1"},on:{"notify":onNotify}},function(){return [_m(0)]})}`,
[`with(this){return _h('div',["hi"])}`]
)
})
it('generate is attribute', () => {
assertCodegen(
'<div is="component1"></div>',
`with(this){return _h("component1",{tag:"div"})}`
)
assertCodegen(
'<div :is="component1"></div>',
`with(this){return _h(component1,{tag:"div"})}`
)
})
it('generate component with inline-template', () => {
// have "inline-template'"
assertCodegen(
'<my-component inline-template><p>hello world</p></my-component>',
`with(this){return _h('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _h('p',["hello world"])}}]}})}`
)
// "have inline-template attrs, but not having extactly one child element
assertCodegen(
'<my-component inline-template><hr><hr></my-component>',
`with(this){return _h('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _h('hr')}}]}})}`
)
expect('Inline-template components must have exactly one child element.').toHaveBeenWarned()
})
it('not specified ast type', () => {
const res = generate(null, baseOptions)
expect(res.render).toBe(`with(this){return _h("div")}`)
expect(res.staticRenderFns).toEqual([])
})
it('not specified directives option', () => {
assertCodegen(
'<p v-if="show">hello world</p>',
`with(this){return (show)?_h('p',["hello world"]):void 0}`,
{ isReservedTag }
)
})
it('not specified isReservedTag option', () => {
// this causes all tags to be treated as components,
// thus all children are wrapped in thunks.
assertCodegen(
'<div><p>hello world</p></div>',
`with(this){return _m(0)}`,
[`with(this){return _h('div',function(){return [_h('p',function(){return ["hello world"]})]})}`],
{ directives }
)
})
})
/* eslint-enable quotes */