vue2/test/unit/modules/compiler/codegen.spec.ts

744 lines
27 KiB
TypeScript

import { parse } from 'compiler/parser/index'
import { optimize } from 'compiler/optimizer'
import { generate } from 'compiler/codegen'
import { isObject, isFunction, extend } from 'shared/util'
import { isReservedTag } from 'web/util/index'
import { baseOptions } from 'web/compiler/options'
import { BindingTypes } from '../../../../packages/compiler-sfc/src/types'
function assertCodegen(template, generatedCode, ...args) {
let staticRenderFnCodes: string[] = []
let generateOptions = baseOptions
let proc: Function | null = 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 (isFunction(arg)) {
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)
}
describe('codegen', () => {
it('generate directive', () => {
assertCodegen(
'<p v-custom1:arg1.modifier="value1" v-custom2></p>',
`with(this){return _c('p',{directives:[{name:"custom1",rawName:"v-custom1:arg1.modifier",value:(value1),expression:"value1",arg:"arg1",modifiers:{"modifier":true}},{name:"custom2",rawName:"v-custom2"}]})}`
)
})
it('generate filters', () => {
assertCodegen(
'<div :id="a | b | c">{{ d | e | f }}</div>',
`with(this){return _c('div',{attrs:{"id":_f("c")(_f("b")(a))}},[_v(_s(_f("f")(_f("e")(d))))])}`
)
})
it('generate filters with no arguments', () => {
assertCodegen(
'<div>{{ d | e() }}</div>',
`with(this){return _c('div',[_v(_s(_f("e")(d)))])}`
)
})
it('generate v-for directive', () => {
assertCodegen(
'<div><li v-for="item in items" :key="item.uid"></li></div>',
`with(this){return _c('div',_l((items),function(item){return _c('li',{key:item.uid})}),0)}`
)
// iterator syntax
assertCodegen(
'<div><li v-for="(item, i) in items"></li></div>',
`with(this){return _c('div',_l((items),function(item,i){return _c('li')}),0)}`
)
assertCodegen(
'<div><li v-for="(item, key, index) in items"></li></div>',
`with(this){return _c('div',_l((items),function(item,key,index){return _c('li')}),0)}`
)
// destructuring
assertCodegen(
'<div><li v-for="{ a, b } in items"></li></div>',
`with(this){return _c('div',_l((items),function({ a, b }){return _c('li')}),0)}`
)
assertCodegen(
'<div><li v-for="({ a, b }, key, index) in items"></li></div>',
`with(this){return _c('div',_l((items),function({ a, b },key,index){return _c('li')}),0)}`
)
// v-for with extra element
assertCodegen(
'<div><p></p><li v-for="item in items"></li></div>',
`with(this){return _c('div',[_c('p'),_l((items),function(item){return _c('li')})],2)}`
)
})
it('generate v-if directive', () => {
assertCodegen(
'<p v-if="show">hello</p>',
`with(this){return (show)?_c('p',[_v("hello")]):_e()}`
)
})
it('generate v-else directive', () => {
assertCodegen(
'<div><p v-if="show">hello</p><p v-else>world</p></div>',
`with(this){return _c('div',[(show)?_c('p',[_v("hello")]):_c('p',[_v("world")])])}`
)
})
it('generate v-else-if directive', () => {
assertCodegen(
'<div><p v-if="show">hello</p><p v-else-if="hide">world</p></div>',
`with(this){return _c('div',[(show)?_c('p',[_v("hello")]):(hide)?_c('p',[_v("world")]):_e()])}`
)
})
it('generate v-else-if with v-else directive', () => {
assertCodegen(
'<div><p v-if="show">hello</p><p v-else-if="hide">world</p><p v-else>bye</p></div>',
`with(this){return _c('div',[(show)?_c('p',[_v("hello")]):(hide)?_c('p',[_v("world")]):_c('p',[_v("bye")])])}`
)
})
it('generate multi v-else-if with v-else directive', () => {
assertCodegen(
'<div><p v-if="show">hello</p><p v-else-if="hide">world</p><p v-else-if="3">elseif</p><p v-else>bye</p></div>',
`with(this){return _c('div',[(show)?_c('p',[_v("hello")]):(hide)?_c('p',[_v("world")]):(3)?_c('p',[_v("elseif")]):_c('p',[_v("bye")])])}`
)
})
it('generate ref', () => {
assertCodegen(
'<p ref="component1"></p>',
`with(this){return _c('p',{ref:"component1"})}`
)
})
it('generate ref on v-for', () => {
assertCodegen(
'<ul><li v-for="item in items" ref="component1"></li></ul>',
`with(this){return _c('ul',_l((items),function(item){return _c('li',{ref:"component1",refInFor:true})}),0)}`
)
})
it('generate v-bind directive', () => {
assertCodegen(
'<p v-bind="test"></p>',
`with(this){return _c('p',_b({},'p',test,false))}`
)
})
it('generate v-bind with prop directive', () => {
assertCodegen(
'<p v-bind.prop="test"></p>',
`with(this){return _c('p',_b({},'p',test,true))}`
)
})
it('generate v-bind directive with sync modifier', () => {
assertCodegen(
'<p v-bind.sync="test"></p>',
`with(this){return _c('p',_b({},'p',test,false,true))}`
)
})
it('generate v-model directive', () => {
assertCodegen(
'<input v-model="test">',
`with(this){return _c('input',{directives:[{name:"model",rawName:"v-model",value:(test),expression:"test"}],domProps:{"value":(test)},on:{"input":function($event){if($event.target.composing)return;test=$event.target.value}}})}`
)
})
it('generate multiline v-model directive', () => {
assertCodegen(
'<input v-model="\n test \n">',
`with(this){return _c('input',{directives:[{name:"model",rawName:"v-model",value:(\n test \n),expression:"\\n test \\n"}],domProps:{"value":(\n test \n)},on:{"input":function($event){if($event.target.composing)return;\n test \n=$event.target.value}}})}`
)
})
it('generate multiline v-model directive on custom component', () => {
assertCodegen(
'<my-component v-model="\n test \n" />',
`with(this){return _c('my-component',{model:{value:(\n test \n),callback:function ($$v) {\n test \n=$$v},expression:"\\n test \\n"}})}`
)
})
it('generate template tag', () => {
assertCodegen(
'<div><template><p>{{hello}}</p></template></div>',
`with(this){return _c('div',[[_c('p',[_v(_s(hello))])]],2)}`
)
})
it('generate single slot', () => {
assertCodegen(
'<div><slot></slot></div>',
`with(this){return _c('div',[_t("default")],2)}`
)
})
it('generate named slot', () => {
assertCodegen(
'<div><slot name="one"></slot></div>',
`with(this){return _c('div',[_t("one")],2)}`
)
})
it('generate slot fallback content', () => {
assertCodegen(
'<div><slot><div>hi</div></slot></div>',
`with(this){return _c('div',[_t("default",function(){return [_c('div',[_v("hi")])]})],2)}`
)
})
it('generate slot target', () => {
assertCodegen(
'<p slot="one">hello world</p>',
`with(this){return _c('p',{attrs:{"slot":"one"},slot:"one"},[_v("hello world")])}`
)
})
it('generate scoped slot', () => {
assertCodegen(
'<foo><template slot-scope="bar">{{ bar }}</template></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return [_v(_s(bar))]}}])})}`
)
assertCodegen(
'<foo><div slot-scope="bar">{{ bar }}</div></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return _c('div',{},[_v(_s(bar))])}}])})}`
)
})
it('generate named scoped slot', () => {
assertCodegen(
'<foo><template slot="foo" slot-scope="bar">{{ bar }}</template></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:"foo",fn:function(bar){return [_v(_s(bar))]}}])})}`
)
assertCodegen(
'<foo><div slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:"foo",fn:function(bar){return _c('div',{},[_v(_s(bar))])}}])})}`
)
})
it('generate dynamic scoped slot', () => {
assertCodegen(
'<foo><template :slot="foo" slot-scope="bar">{{ bar }}</template></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:foo,fn:function(bar){return [_v(_s(bar))]}}],null,true)})}`
)
})
it('generate scoped slot with multiline v-if', () => {
assertCodegen(
'<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',
`with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}],null,true)})}`
)
assertCodegen(
'<foo><div v-if="\nshow\n" slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
`with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}],null,true)})}`
)
})
it('generate scoped slot with new slot syntax', () => {
assertCodegen(
'<foo><template v-if="show" #default="bar">{{ bar }}</template></foo>',
`with(this){return _c('foo',{scopedSlots:_u([(show)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],null,true)})}`
)
})
it('generate class binding', () => {
// static
assertCodegen(
'<p class="class1">hello world</p>',
`with(this){return _c('p',{staticClass:"class1"},[_v("hello world")])}`
)
// dynamic
assertCodegen(
'<p :class="class1">hello world</p>',
`with(this){return _c('p',{class:class1},[_v("hello world")])}`
)
})
it('generate style binding', () => {
assertCodegen(
'<p :style="error">hello world</p>',
`with(this){return _c('p',{style:(error)},[_v("hello world")])}`
)
})
it('generate v-show directive', () => {
assertCodegen(
'<p v-show="shown">hello world</p>',
`with(this){return _c('p',{directives:[{name:"show",rawName:"v-show",value:(shown),expression:"shown"}]},[_v("hello world")])}`
)
})
it('generate DOM props with v-bind directive', () => {
// input + value
assertCodegen(
'<input :value="msg">',
`with(this){return _c('input',{domProps:{"value":msg}})}`
)
// non input
assertCodegen(
'<p :value="msg"/>',
`with(this){return _c('p',{attrs:{"value":msg}})}`
)
})
it('generate attrs with v-bind directive', () => {
assertCodegen(
'<input :name="field1">',
`with(this){return _c('input',{attrs:{"name":field1}})}`
)
})
it('generate static attrs', () => {
assertCodegen(
'<input name="field1">',
`with(this){return _c('input',{attrs:{"name":"field1"}})}`
)
})
it('generate events with v-on directive', () => {
assertCodegen(
'<input @input="onInput">',
`with(this){return _c('input',{on:{"input":onInput}})}`
)
})
it('generate events with method call', () => {
assertCodegen(
'<input @input="onInput($event);">',
`with(this){return _c('input',{on:{"input":function($event){return onInput($event);}}})}`
)
// empty arguments
assertCodegen(
'<input @input="onInput();">',
`with(this){return _c('input',{on:{"input":function($event){return onInput();}}})}`
)
// without semicolon
assertCodegen(
'<input @input="onInput($event)">',
`with(this){return _c('input',{on:{"input":function($event){return onInput($event)}}})}`
)
// multiple args
assertCodegen(
'<input @input="onInput($event, \'abc\', 5);">',
`with(this){return _c('input',{on:{"input":function($event){return onInput($event, 'abc', 5);}}})}`
)
// expression in args
assertCodegen(
'<input @input="onInput($event, 2+2);">',
`with(this){return _c('input',{on:{"input":function($event){return onInput($event, 2+2);}}})}`
)
// tricky symbols in args
assertCodegen(
`<input @input="onInput(');[\\'());');">`,
`with(this){return _c('input',{on:{"input":function($event){onInput(');[\\'());');}}})}`
)
// function name including a `function` part (#9920)
assertCodegen(
'<input @input="functionName()">',
`with(this){return _c('input',{on:{"input":function($event){return functionName()}}})}`
)
})
it('generate events with multiple statements', () => {
// normal function
assertCodegen(
'<input @input="onInput1();onInput2()">',
`with(this){return _c('input',{on:{"input":function($event){onInput1();onInput2()}}})}`
)
// function with multiple args
assertCodegen(
"<input @input=\"onInput1($event, 'text');onInput2('text2', $event)\">",
`with(this){return _c('input',{on:{"input":function($event){onInput1($event, 'text');onInput2('text2', $event)}}})}`
)
})
it('generate events with keycode', () => {
assertCodegen(
'<input @input.enter="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput.apply(null, arguments)}}})}`
)
// multiple keycodes (delete)
assertCodegen(
'<input @input.delete="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput.apply(null, arguments)}}})}`
)
// multiple keycodes (esc)
assertCodegen(
'<input @input.esc="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput.apply(null, arguments)}}})}`
)
// multiple keycodes (space)
assertCodegen(
'<input @input.space="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput.apply(null, arguments)}}})}`
)
// multiple keycodes (chained)
assertCodegen(
'<input @keydown.enter.delete="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput.apply(null, arguments)}}})}`
)
// number keycode
assertCodegen(
'<input @input.13="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&$event.keyCode!==13)return null;return onInput.apply(null, arguments)}}})}`
)
// custom keycode
assertCodegen(
'<input @input.custom="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with generic modifiers', () => {
assertCodegen(
'<input @input.stop="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();return onInput.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @input.prevent="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.preventDefault();return onInput.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @input.self="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return null;return onInput.apply(null, arguments)}}})}`
)
})
// GitHub Issues #5146
it('generate events with generic modifiers and keycode correct order', () => {
assertCodegen(
'<input @keydown.enter.prevent="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @keydown.enter.stop="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with mouse event modifiers', () => {
assertCodegen(
'<input @click.ctrl="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;return onClick.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @click.shift="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.shiftKey)return null;return onClick.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @click.alt="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.altKey)return null;return onClick.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @click.meta="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;return onClick.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @click.exact="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick.apply(null, arguments)}}})}`
)
assertCodegen(
'<input @click.ctrl.exact="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick.apply(null, arguments)}}})}`
)
})
it('generate events with multiple modifiers', () => {
assertCodegen(
'<input @input.stop.prevent.self="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return null;return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with capture modifier', () => {
assertCodegen(
'<input @input.capture="onInput">',
`with(this){return _c('input',{on:{"!input":function($event){return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with once modifier', () => {
assertCodegen(
'<input @input.once="onInput">',
`with(this){return _c('input',{on:{"~input":function($event){return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with capture and once modifier', () => {
assertCodegen(
'<input @input.capture.once="onInput">',
`with(this){return _c('input',{on:{"~!input":function($event){return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with once and capture modifier', () => {
assertCodegen(
'<input @input.once.capture="onInput">',
`with(this){return _c('input',{on:{"~!input":function($event){return onInput.apply(null, arguments)}}})}`
)
})
it('generate events with inline statement', () => {
assertCodegen(
'<input @input="current++">',
`with(this){return _c('input',{on:{"input":function($event){current++}}})}`
)
})
it('generate events with inline function expression', () => {
// normal function
assertCodegen(
'<input @input="function () { current++ }">',
`with(this){return _c('input',{on:{"input":function () { current++ }}})}`
)
// normal named function
assertCodegen(
'<input @input="function fn () { current++ }">',
`with(this){return _c('input',{on:{"input":function fn () { current++ }}})}`
)
// arrow with no args
assertCodegen(
'<input @input="()=>current++">',
`with(this){return _c('input',{on:{"input":()=>current++}})}`
)
// arrow with parens, single arg
assertCodegen(
'<input @input="(e) => current++">',
`with(this){return _c('input',{on:{"input":(e) => current++}})}`
)
// arrow with parens, multi args
assertCodegen(
'<input @input="(a, b, c) => current++">',
`with(this){return _c('input',{on:{"input":(a, b, c) => current++}})}`
)
// arrow with destructuring
assertCodegen(
'<input @input="({ a, b }) => current++">',
`with(this){return _c('input',{on:{"input":({ a, b }) => current++}})}`
)
// arrow single arg no parens
assertCodegen(
'<input @input="e=>current++">',
`with(this){return _c('input',{on:{"input":e=>current++}})}`
)
// with modifiers
assertCodegen(
`<input @keyup.enter="e=>current++">`,
`with(this){return _c('input',{on:{"keyup":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++).apply(null, arguments)}}})}`
)
})
// #3893
it('should not treat handler with unexpected whitespace as inline statement', () => {
assertCodegen(
'<input @input=" onInput ">',
`with(this){return _c('input',{on:{"input":onInput}})}`
)
})
it('generate unhandled events', () => {
assertCodegen(
'<input @input="current++">',
`with(this){return _c('input',{on:{"input":function(){}}})}`,
ast => {
ast.events.input = undefined
}
)
})
it('generate multiple event handlers', () => {
assertCodegen(
'<input @input="current++" @input.stop="onInput">',
`with(this){return _c('input',{on:{"input":[function($event){current++},function($event){$event.stopPropagation();return onInput.apply(null, arguments)}]}})}`
)
})
it('generate component', () => {
assertCodegen(
'<my-component name="mycomponent1" :msg="msg" @notify="onNotify"><div>hi</div></my-component>',
`with(this){return _c('my-component',{attrs:{"name":"mycomponent1","msg":msg},on:{"notify":onNotify}},[_c('div',[_v("hi")])])}`
)
})
it('generate svg component with children', () => {
assertCodegen(
'<svg><my-comp><circle :r="10"></circle></my-comp></svg>',
`with(this){return _c('svg',[_c('my-comp',[_c('circle',{attrs:{"r":10}})])],1)}`
)
})
it('generate is attribute', () => {
assertCodegen(
'<div is="component1"></div>',
`with(this){return _c("component1",{tag:"div"})}`
)
assertCodegen(
'<div :is="component1"></div>',
`with(this){return _c(component1,{tag:"div"})}`
)
// maybe a component and normalize type should be 1
assertCodegen(
'<div><div is="component1"></div></div>',
`with(this){return _c('div',[_c("component1",{tag:"div"})],1)}`
)
})
it('generate component with inline-template', () => {
// have "inline-template'"
assertCodegen(
'<my-component inline-template><p><span>hello world</span></p></my-component>',
`with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _c('p',[_c('span',[_v("hello world")])])}}]}})}`
)
// "have inline-template attrs, but not having exactly one child element
assertCodegen(
'<my-component inline-template><hr><hr></my-component>',
`with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _c('hr')}},staticRenderFns:[]}})}`
)
assertCodegen(
'<my-component inline-template></my-component>',
`with(this){return _c('my-component',{})}`
)
// have "is" attribute
assertCodegen(
'<div is="myComponent" inline-template><div></div></div>',
`with(this){return _c("myComponent",{tag:"div",inlineTemplate:{render:function(){with(this){return _c('div')}},staticRenderFns:[]}})}`
)
assertCodegen(
'<div is="myComponent" inline-template></div>',
`with(this){return _c("myComponent",{tag:"div"})}`
)
expect(
'Inline-template components must have exactly one child element.'
).toHaveBeenWarned()
expect((console.error as any).mock.calls.length).toBe(3)
})
it('generate static trees inside v-for', () => {
assertCodegen(
`<div><div v-for="i in 10"><p><span></span></p></div></div>`,
`with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true)])}),0)}`,
[`with(this){return _c('p',[_c('span')])}`]
)
})
it('generate component with v-for', () => {
// normalize type: 2
assertCodegen(
'<div><child></child><template v-for="item in list">{{ item }}</template></div>',
`with(this){return _c('div',[_c('child'),_l((list),function(item){return [_v(_s(item))]})],2)}`
)
})
it('generate component with comment', () => {
const options = extend(
{
comments: true
},
baseOptions
)
const template = '<div><!--comment--></div>'
const generatedCode = `with(this){return _c('div',[_e("comment")])}`
const ast = parse(template, options)
optimize(ast, options)
const res = generate(ast, options)
expect(res.render).toBe(generatedCode)
})
// #6150
it('generate comments with special characters', () => {
const options = extend(
{
comments: true
},
baseOptions
)
const template = "<div><!--\n'comment'\n--></div>"
const generatedCode = `with(this){return _c('div',[_e("\\n'comment'\\n")])}`
const ast = parse(template, options)
optimize(ast, options)
const res = generate(ast, options)
expect(res.render).toBe(generatedCode)
})
// #8041
it('does not squash templates inside v-pre', () => {
const template = '<div v-pre><template><p>{{msg}}</p></template></div>'
const generatedCode = `with(this){return _m(0)}`
const renderFn = `with(this){return _c('div',{pre:true},[_c('template',[_c('p',[_v("{{msg}}")])])],2)}`
const ast = parse(template, baseOptions)
optimize(ast, baseOptions)
const res = generate(ast, baseOptions)
expect(res.render).toBe(generatedCode)
expect(res.staticRenderFns).toEqual([renderFn])
})
it('not specified ast type', () => {
const res = generate(undefined, baseOptions)
expect(res.render).toBe(`with(this){return _c("div")}`)
expect(res.staticRenderFns).toEqual([])
})
it('not specified directives option', () => {
assertCodegen(
'<p v-if="show">hello world</p>',
`with(this){return (show)?_c('p',[_v("hello world")]):_e()}`,
{ isReservedTag }
)
})
// #9142
it('should compile single v-for component inside template', () => {
assertCodegen(
`<div><template v-if="ok"><foo v-for="i in 1" :key="i"></foo></template></div>`,
`with(this){return _c('div',[(ok)?_l((1),function(i){return _c('foo',{key:i})}):_e()],2)}`
)
})
it('component with bindings ', () => {
const ast = parse(`<div><Foo/><foo-bar></foo-bar></div>`, baseOptions)
optimize(ast, baseOptions)
const res = generate(ast, {
...baseOptions,
bindings: {
Foo: BindingTypes.SETUP_CONST,
FooBar: BindingTypes.SETUP_CONST
}
})
expect(res.render).toMatchInlineSnapshot(
'"with(this){return _c(\'div\',[_c(Foo),_c(FooBar)],1)}"'
)
})
// #12674
it('component with bindings: should not resolve native elements', () => {
const ast = parse(`<div><form>{{ n }}</form></div>`, baseOptions)
optimize(ast, baseOptions)
const res = generate(ast, {
...baseOptions,
bindings: {
form: BindingTypes.SETUP_CONST
}
})
expect(res.render).toMatch(`_c('form'`)
expect(res.render).toMatchInlineSnapshot(
"\"with(this){return _c('div',[_c('form',[_v(_s(n))])])}\""
)
})
})