angular-cn/packages/compiler-cli/test/compliance/r3_compiler_compliance_spec.ts

3703 lines
121 KiB
TypeScript
Raw Normal View History

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {AttributeMarker} from '@angular/compiler/src/core';
import {setup} from '@angular/compiler/test/aot/test_util';
import {compile, expectEmit} from './mock_compile';
/**
* These tests are codified version of the tests in compiler_canonical_spec.ts. Every
* test in compiler_canonical_spec.ts should have a corresponding test here.
*/
describe('compiler compliance', () => {
const angularFiles = setup({
compileAngular: false,
compileAnimations: false,
compileFakeCore: true,
});
describe('elements', () => {
it('should handle SVG', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div class="my-app" title="Hello"><svg><circle cx="20" cy="30" r="50"/></svg><p>test</p></div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The factory should look like this:
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
consts: [["title", "Hello", ${AttributeMarker.Classes}, "my-app"], ["cx", "20", "cy", "30", "r", "50"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵnamespaceSVG();
$r3$.ɵɵelementStart(1, "svg");
$r3$.ɵɵelement(2, "circle", 1);
$r3$.ɵɵelementEnd();
$r3$.ɵɵnamespaceHTML();
$r3$.ɵɵelementStart(3, "p");
$r3$.ɵɵtext(4, "test");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementEnd();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should handle MathML', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div class="my-app" title="Hello"><math><infinity/></math><p>test</p></div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The factory should look like this:
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
consts: [["title", "Hello", ${AttributeMarker.Classes}, "my-app"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵnamespaceMathML();
$r3$.ɵɵelementStart(1, "math");
$r3$.ɵɵelement(2, "infinity");
$r3$.ɵɵelementEnd();
$r3$.ɵɵnamespaceHTML();
$r3$.ɵɵelementStart(3, "p");
$r3$.ɵɵtext(4, "test");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementEnd();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should translate DOM structure', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div class="my-app" title="Hello">Hello <b>World</b>!</div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The factory should look like this:
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
consts: [["title", "Hello", ${AttributeMarker.Classes}, "my-app"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵtext(1, "Hello ");
$r3$.ɵɵelementStart(2, "b");
$r3$.ɵɵtext(3, "World");
$r3$.ɵɵelementEnd();
$r3$.ɵɵtext(4, "!");
$r3$.ɵɵelementEnd();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
// TODO(https://github.com/angular/angular/issues/24426): We need to support the parser actually
// building the proper attributes based off of xmlns attributes.
xit('should support namespaced attributes', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div xmlns:foo="http://someuri/foo" class="my-app" foo:bar="baz" title="Hello" foo:qux="quacks">Hello <b>World</b>!</div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The factory should look like this:
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
consts: [["class", "my-app", 0, "http://someuri/foo", "foo:bar", "baz", "title", "Hello", 0, "http://someuri/foo", "foo:qux", "quacks"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵtext(1, "Hello ");
$r3$.ɵɵelementStart(2, "b");
$r3$.ɵɵtext(3, "World");
$r3$.ɵɵelementEnd();
$r3$.ɵɵtext(4, "!");
$r3$.ɵɵelementEnd();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should support <ng-container>', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<ng-container><span>in a </span>container</ng-container>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
i0.ɵɵelementContainerStart(0);
i0.ɵɵelementStart(1, "span");
i0.ɵɵtext(2, "in a ");
i0.ɵɵelementEnd();
i0.ɵɵtext(3, "container");
i0.ɵɵelementContainerEnd();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, template, 'Incorrect template');
});
it('should generate self-closing elementContainer instruction for empty <ng-container>', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<ng-container></ng-container>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
i0.ɵɵelementContainer(0);
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, template, 'Incorrect template');
});
it('should bind to element properties', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div [id]="id"></div>\`
})
export class MyComponent {
id = 'one';
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
const template = `
consts: [[${AttributeMarker.Bindings}, "id"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("id", ctx.id);
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should reserve slots for pure functions', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div
[ternary]="cond ? [a] : [0]"
[pipe]="value | pipe:1:2"
[and]="cond && [b]"
[or]="cond || [c]"
></div>\`
})
export class MyComponent {
id = 'one';
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
///////////////
// TODO(FW-1273): The code generated below is adding extra parens, and we need to stop
// generating those.
//
// For example:
// `$r3$.ɵɵproperty("ternary", (ctx.cond ? $r3$.ɵɵpureFunction1(8, $c0$, ctx.a): $c1$));`
///////////////
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
const template = `
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
$r3$.ɵɵpipe(1, "pipe");
}
if (rf & 2) {
$r3$.ɵɵproperty("ternary", ctx.cond ? $r3$.ɵɵpureFunction1(8, $c0$, ctx.a): $r3$.ɵɵpureFunction0(10, $c1$))("pipe", $r3$.ɵɵpipeBind3(1, 4, ctx.value, 1, 2))("and", ctx.cond && $r3$.ɵɵpureFunction1(11, $c0$, ctx.b))("or", ctx.cond || $r3$.ɵɵpureFunction1(13, $c0$, ctx.c));
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should reserve slots for pure functions in host binding function', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Input} from '@angular/core';
@Component({
selector: 'my-component',
template: '...',
host: {
'[@expansionHeight]': \`{
value: getExpandedState(),
params: {
collapsedHeight: collapsedHeight,
expandedHeight: expandedHeight
}
}\`,
'[@expansionWidth]': \`{
value: getExpandedState(),
params: {
collapsedWidth: collapsedWidth,
expandedWidth: expandedWidth
}
}\`
}
})
export class MyComponent {
@Input() expandedHeight: string;
@Input() collapsedHeight: string;
@Input() expandedWidth: string;
@Input() collapsedWidth: string;
getExpandedState() {
return 'expanded';
}
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const hostBindingsDef = `
const $_c0$ = function (a0, a1) { return { collapsedHeight: a0, expandedHeight: a1 }; };
const $_c1$ = function (a0, a1) { return { value: a0, params: a1 }; };
const $_c2$ = function (a0, a1) { return { collapsedWidth: a0, expandedWidth: a1 }; };
refactor(ivy): move `hostVars`/`hostAttrs` from instruction to `DirectiveDef` (#34683) This change moves information from instructions to declarative position: - `ɵɵallocHostVars(vars)` => `DirectiveDef.hostVars` - `ɵɵelementHostAttrs(attrs)` => `DirectiveDef.hostAttrs` When merging directives it is necessary to know about `hostVars` and `hostAttrs`. Before this change the information was stored in the `hostBindings` function. This was problematic, because in order to get to the information the `hostBindings` would have to be executed. In order for `hostBindings` to be executed the directives would have to be instantiated. This means that the directive instantiation would happen before we had knowledge about the `hostAttrs` and as a result the directive could observe in the constructor that not all of the `hostAttrs` have been applied. This further complicates the runtime as we have to apply `hostAttrs` in parts over many invocations. `ɵɵallocHostVars` was unnecessarily complicated because it would have to update the `LView` (and Blueprint) while existing directives are already executing. By moving it out of `hostBindings` function we can access it statically and we can create correct `LView` (and Blueprint) in a single pass. This change only changes how the instructions are generated, but does not change the runtime much. (We cheat by emulating the old behavior by calling `ɵɵallocHostVars` and `ɵɵelementHostAttrs`) Subsequent change will refactor the runtime to take advantage of the static information. PR Close #34683
2020-01-08 14:32:33 -05:00
hostVars: 14,
hostBindings: function MyComponent_HostBindings(rf, ctx) {
if (rf & 2) {
$r3$.ɵɵupdateSyntheticHostBinding("@expansionHeight",
$r3$.ɵɵpureFunction2(5, $_c1$, ctx.getExpandedState(),
$r3$.ɵɵpureFunction2(2, $_c0$, ctx.collapsedHeight, ctx.expandedHeight)
)
)("@expansionWidth",
$r3$.ɵɵpureFunction2(11, $_c1$, ctx.getExpandedState(),
$r3$.ɵɵpureFunction2(8, $_c2$, ctx.collapsedWidth, ctx.expandedWidth)
)
);
}
},
`;
const result = compile(files, angularFiles);
expectEmit(result.source, hostBindingsDef, 'Incorrect "hostBindings" function');
});
it('should bind to class and style names', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div [class.error]="error" [style.background-color]="color"></div>\`
})
export class MyComponent {
error = true;
color = 'red';
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const factory =
'MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); }';
const template = `
MyComponent.ɵcmp = i0.ɵɵdefineComponent({type:MyComponent,selectors:[["my-component"]],
decls: 1,
vars: 4,
template: function MyComponent_Template(rf,ctx){
if (rf & 1) {
$r3$.ɵɵelement(0, "div");
}
if (rf & 2) {
$r3$.ɵɵstyleProp("background-color", ctx.color);
$r3$.ɵɵclassProp("error", ctx.error);
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should de-duplicate attribute arrays', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`
<div title="hi"></div>
<span title="hi"></span>
\`
})
export class MyComponent {
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const template = `
consts: [["title", "hi"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
$r3$.ɵɵelement(1, "span", 0);
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, template, 'Incorrect template');
});
});
describe('components & directives', () => {
it('should instantiate directives', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule} from '@angular/core';
@Component({selector: 'child', template: 'child-view'})
export class ChildComponent {}
@Directive({selector: '[some-directive]'})
export class SomeDirective {}
@Component({selector: 'my-component', template: '<child some-directive></child>!'})
export class MyComponent {}
@NgModule({declarations: [ChildComponent, SomeDirective, MyComponent]})
export class MyModule{}
`
}
};
// ChildComponent definition should be:
const ChildComponentDefinition = `
ChildComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ChildComponent,
selectors: [["child"]],
decls: 1,
vars: 0,
template: function ChildComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtext(0, "child-view");
}
},
encapsulation: 2
});`;
const ChildComponentFactory =
`ChildComponent.ɵfac = function ChildComponent_Factory(t) { return new (t || ChildComponent)(); };`;
// SomeDirective definition should be:
const SomeDirectiveDefinition = `
SomeDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: SomeDirective,
selectors: [["", "some-directive", ""]]
});
`;
const SomeDirectiveFactory =
`SomeDirective.ɵfac = function SomeDirective_Factory(t) {return new (t || SomeDirective)(); };`;
// MyComponent definition should be:
const MyComponentDefinition = `
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 2,
vars: 0,
consts: [["some-directive", ""]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "child", 0);
$r3$.ɵɵtext(1, "!");
}
},
directives: [ChildComponent, SomeDirective],
encapsulation: 2
});
`;
const MyComponentFactory =
`MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); };`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ChildComponentDefinition, 'Incorrect ChildComponent.ɵcmp');
expectEmit(source, ChildComponentFactory, 'Incorrect ChildComponent.ɵfac');
expectEmit(source, SomeDirectiveDefinition, 'Incorrect SomeDirective.ɵdir');
expectEmit(source, SomeDirectiveFactory, 'Incorrect SomeDirective.ɵfac');
expectEmit(source, MyComponentDefinition, 'Incorrect MyComponentDefinition.ɵcmp');
expectEmit(source, MyComponentFactory, 'Incorrect MyComponentDefinition.ɵfac');
});
it('should support complex selectors', () => {
const files = {
app: {
'spec.ts': `
import {Directive, NgModule} from '@angular/core';
@Directive({selector: 'div.foo[some-directive]:not([title]):not(.baz)'})
export class SomeDirective {}
@Directive({selector: ':not(span[title]):not(.baz)'})
export class OtherDirective {}
@NgModule({declarations: [SomeDirective, OtherDirective]})
export class MyModule{}
`
}
};
// SomeDirective definition should be:
const SomeDirectiveDefinition = `
SomeDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: SomeDirective,
selectors: [["div", "some-directive", "", 8, "foo", 3, "title", "", 9, "baz"]]
});
`;
const SomeDirectiveFactory =
`SomeDirective.ɵfac = function SomeDirective_Factory(t) {return new (t || SomeDirective)(); };`;
// OtherDirective definition should be:
const OtherDirectiveDefinition = `
OtherDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: OtherDirective,
selectors: [["", 5, "span", "title", "", 9, "baz"]]
});
`;
const OtherDirectiveFactory =
`OtherDirective.ɵfac = function OtherDirective_Factory(t) {return new (t || OtherDirective)(); };`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, SomeDirectiveDefinition, 'Incorrect SomeDirective.ɵdir');
expectEmit(source, SomeDirectiveFactory, 'Incorrect SomeDirective.ɵfac');
expectEmit(source, OtherDirectiveDefinition, 'Incorrect OtherDirective.ɵdir');
expectEmit(source, OtherDirectiveFactory, 'Incorrect OtherDirective.ɵfac');
});
it('should convert #my-app selector to ["", "id", "my-app"]', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({selector: '#my-app', template: ''})
export class SomeComponent {}
@NgModule({declarations: [SomeComponent]})
export class MyModule{}
`
}
};
// SomeDirective definition should be:
const SomeDirectiveDefinition = `
SomeComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: SomeComponent,
selectors: [["", "id", "my-app"]],
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, SomeDirectiveDefinition, 'Incorrect SomeComponent.ɵcomp');
});
it('should support components without selector', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule} from '@angular/core';
@Component({template: '<router-outlet></router-outlet>'})
export class EmptyOutletComponent {}
@NgModule({declarations: [EmptyOutletComponent]})
export class MyModule{}
`
}
};
// EmptyOutletComponent definition should be:
const EmptyOutletComponentDefinition = `
EmptyOutletComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: EmptyOutletComponent,
selectors: [["ng-component"]],
decls: 1,
vars: 0,
template: function EmptyOutletComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "router-outlet");
}
},
encapsulation: 2
});
`;
const EmptyOutletComponentFactory =
`EmptyOutletComponent.ɵfac = function EmptyOutletComponent_Factory(t) { return new (t || EmptyOutletComponent)(); };`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, EmptyOutletComponentDefinition, 'Incorrect EmptyOutletComponent.ɵcmp');
expectEmit(source, EmptyOutletComponentFactory, 'Incorrect EmptyOutletComponent.ɵfac');
});
it('should not treat ElementRef, ViewContainerRef, or ChangeDetectorRef specially when injecting',
() => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, ElementRef, ChangeDetectorRef, ViewContainerRef} from '@angular/core';
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent {
constructor(public el: ElementRef, public vcr: ViewContainerRef, public cdr: ChangeDetectorRef) {}
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const MyComponentDefinition = `
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 0,
vars: 0,
template: function MyComponent_Template(rf, ctx) {},
encapsulation: 2
});`;
const MyComponentFactory = `MyComponent.ɵfac = function MyComponent_Factory(t) {
return new (t || MyComponent)(
$r3$.ɵɵdirectiveInject($i$.ElementRef), $r3$.ɵɵdirectiveInject($i$.ViewContainerRef),
$r3$.ɵɵdirectiveInject($i$.ChangeDetectorRef));
};`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyComponentDefinition, 'Incorrect MyComponent.ɵcmp');
expectEmit(source, MyComponentFactory, 'Incorrect MyComponent.ɵfac');
});
it('should support structural directives', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule, TemplateRef} from '@angular/core';
@Directive({selector: '[if]'})
export class IfDirective {
constructor(template: TemplateRef<any>) { }
}
@Component({
selector: 'my-component',
template: '<ul #foo><li *if>{{salutation}} {{foo}}</li></ul>'
})
export class MyComponent {
salutation = 'Hello';
}
@NgModule({declarations: [IfDirective, MyComponent]})
export class MyModule {}
`
}
};
const IfDirectiveDefinition = `
IfDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: IfDirective,
selectors: [["", "if", ""]]
});`;
const IfDirectiveFactory =
`IfDirective.ɵfac = function IfDirective_Factory(t) { return new (t || IfDirective)($r3$.ɵɵdirectiveInject($i$.TemplateRef)); };`;
const MyComponentDefinition = `
function MyComponent_li_2_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "li");
$r3$.ɵɵtext(1);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $myComp$ = $r3$.ɵɵnextContext();
const $foo$ = $r3$.ɵɵreference(1);
$r3$.ɵɵadvance(1);
$r3$.ɵɵtextInterpolate2("", $myComp$.salutation, " ", $foo$, "");
}
}
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 3,
vars: 0,
consts: [["foo", ""], [${AttributeMarker.Template}, "if"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "ul", null, 0);
$r3$.ɵɵtemplate(2, MyComponent_li_2_Template, 2, 2, "li", 1);
$r3$.ɵɵelementEnd();
}
},
directives: [IfDirective],
encapsulation: 2
});`;
const MyComponentFactory =
`MyComponent.ɵfac = function MyComponent_Factory(t) { return new (t || MyComponent)(); };`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, IfDirectiveDefinition, 'Incorrect IfDirective.ɵdir');
expectEmit(source, IfDirectiveFactory, 'Incorrect IfDirective.ɵfac');
expectEmit(source, MyComponentDefinition, 'Incorrect MyComponent.ɵcmp');
expectEmit(source, MyComponentFactory, 'Incorrect MyComponent.ɵfac');
});
describe('value composition', () => {
it('should support array literals', () => {
const files = {
app: {
'spec.ts': `
import {Component, Input, NgModule} from '@angular/core';
@Component({
selector: 'my-comp',
template: \`
<p>{{ names[0] }}</p>
<p>{{ names[1] }}</p>
\`
})
export class MyComp {
@Input() names: string[];
}
@Component({
selector: 'my-app',
template: \`
<my-comp [names]="['Nancy', customName]"></my-comp>
\`
})
export class MyApp {
customName = 'Bess';
}
@NgModule({declarations: [MyComp, MyApp]})
export class MyModule { }
`
}
};
const MyAppDeclaration = `
const $e0_ff$ = function ($v$) { return ["Nancy", $v$]; };
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 1,
vars: 3,
consts: [[${AttributeMarker.Bindings}, "names"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "my-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("names", $r3$.ɵɵpureFunction1(1, $e0_ff$, ctx.customName));
}
},
directives: [MyComp],
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDeclaration, 'Invalid array emit');
});
it('should support 9+ bindings in array literals', () => {
const files = {
app: {
'spec.ts': `
import {Component, Input, NgModule} from '@angular/core';
@Component({
selector: 'my-comp',
template: \`
{{ names[0] }}
{{ names[1] }}
{{ names[3] }}
{{ names[4] }}
{{ names[5] }}
{{ names[6] }}
{{ names[7] }}
{{ names[8] }}
{{ names[9] }}
{{ names[10] }}
{{ names[11] }}
\`
})
export class MyComp {
@Input() names: string[];
}
@Component({
selector: 'my-app',
template: \`
<my-comp [names]="['start-', n0, n1, n2, n3, n4, '-middle-', n5, n6, n7, n8, '-end']">
</my-comp>
\`
})
export class MyApp {
n0 = 'a';
n1 = 'b';
n2 = 'c';
n3 = 'd';
n4 = 'e';
n5 = 'f';
n6 = 'g';
n7 = 'h';
n8 = 'i';
}
@NgModule({declarations: [MyComp, MyApp]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
const $e0_ff$ = function ($v0$, $v1$, $v2$, $v3$, $v4$, $v5$, $v6$, $v7$, $v8$) {
return ["start-", $v0$, $v1$, $v2$, $v3$, $v4$, "-middle-", $v5$, $v6$, $v7$, $v8$, "-end"];
}
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 1,
vars: 11,
consts: [[${AttributeMarker.Bindings}, "names"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "my-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("names",
$r3$.ɵɵpureFunctionV(1, $e0_ff$, [ctx.n0, ctx.n1, ctx.n2, ctx.n3, ctx.n4, ctx.n5, ctx.n6, ctx.n7, ctx.n8]));
}
},
directives: [MyComp],
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid array binding');
});
it('should support object literals', () => {
const files = {
app: {
'spec.ts': `
import {Component, Input, NgModule} from '@angular/core';
@Component({
selector: 'object-comp',
template: \`
<p> {{ config['duration'] }} </p>
<p> {{ config.animation }} </p>
\`
})
export class ObjectComp {
@Input() config: {[key: string]: any};
}
@Component({
selector: 'my-app',
template: \`
<object-comp [config]="{'duration': 500, animation: name}"></object-comp>
\`
})
export class MyApp {
name = 'slide';
}
@NgModule({declarations: [ObjectComp, MyApp]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
const $e0_ff$ = function ($v$) { return {"duration": 500, animation: $v$}; };
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 1,
vars: 3,
consts: [[${AttributeMarker.Bindings}, "config"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "object-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("config", $r3$.ɵɵpureFunction1(1, $e0_ff$, ctx.name));
}
},
directives: [ObjectComp],
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid object literal binding');
});
it('should support expressions nested deeply in object/array literals', () => {
const files = {
app: {
'spec.ts': `
import {Component, Input, NgModule} from '@angular/core';
@Component({
selector: 'nested-comp',
template: \`
<p> {{ config.animation }} </p>
<p> {{config.actions[0].opacity }} </p>
<p> {{config.actions[1].duration }} </p>
\`
})
export class NestedComp {
@Input() config: {[key: string]: any};
}
@Component({
selector: 'my-app',
template: \`
<nested-comp [config]="{animation: name, actions: [{ opacity: 0, duration: 0}, {opacity: 1, duration: duration }]}">
</nested-comp>
\`
})
export class MyApp {
name = 'slide';
duration = 100;
}
@NgModule({declarations: [NestedComp, MyApp]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
const $c0$ = function () { return {opacity: 0, duration: 0}; };
const $e0_ff$ = function ($v$) { return {opacity: 1, duration: $v$}; };
const $e0_ff_1$ = function ($v1$, $v2$) { return [$v1$, $v2$]; };
const $e0_ff_2$ = function ($v1$, $v2$) { return {animation: $v1$, actions: $v2$}; };
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 1,
vars: 10,
consts: [[${AttributeMarker.Bindings}, "config"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "nested-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("config",
$r3$.ɵɵpureFunction2(7, $e0_ff_2$, ctx.name, $r3$.ɵɵpureFunction2(4, $e0_ff_1$, $r3$.ɵɵpureFunction0(1, $c0$), $r3$.ɵɵpureFunction1(2, $e0_ff$, ctx.duration))));
}
},
directives: [NestedComp],
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid array/object literal binding');
});
});
describe('content projection', () => {
it('should support content projection in root template', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule, TemplateRef} from '@angular/core';
@Component({selector: 'simple', template: '<div><ng-content></ng-content></div>'})
export class SimpleComponent {}
@Component({
selector: 'complex',
template: \`
<div id="first"><ng-content select="span[title=toFirst]"></ng-content></div>
<div id="second"><ng-content SELECT="span[title=toSecond]"></ng-content></div>\`
})
export class ComplexComponent { }
@NgModule({declarations: [SimpleComponent, ComplexComponent]})
export class MyModule {}
@Component({
selector: 'my-app',
template: '<simple>content</simple> <complex></complex>'
})
export class MyApp {}
`
}
};
const SimpleComponentDefinition = `
SimpleComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: SimpleComponent,
selectors: [["simple"]],
ngContentSelectors: $c0$,
decls: 2,
vars: 0,
template: function SimpleComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef();
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵprojection(1);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
});`;
const ComplexComponentDefinition = `
const $c1$ = [[["span", "title", "tofirst"]], [["span", "title", "tosecond"]]];
ComplexComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ComplexComponent,
selectors: [["complex"]],
ngContentSelectors: $c2$,
decls: 4,
vars: 0,
consts: [["id","first"], ["id","second"]],
template: function ComplexComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef($c1$);
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵprojection(1);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(2, "div", 1);
$r3$.ɵɵprojection(3, 1);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(
result.source, SimpleComponentDefinition, 'Incorrect SimpleComponent definition');
expectEmit(
result.source, ComplexComponentDefinition, 'Incorrect ComplexComponent definition');
});
it('should support multi-slot content projection with multiple wildcard slots', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
template: \`
<ng-content></ng-content>
<ng-content select="[spacer]"></ng-content>
<ng-content></ng-content>
\`,
})
class Cmp {}
@NgModule({ declarations: [Cmp] })
class Module {}
`,
}
};
const output = `
const $c0$ = ["*", [["", "spacer", ""]], "*"];
const $c1$ = ["*", "[spacer]", "*"];
Cmp.ɵcmp = $r3$.ɵɵdefineComponent({
type: Cmp,
selectors: [["ng-component"]],
ngContentSelectors: $c1$,
decls: 3,
vars: 0,
template: function Cmp_Template(rf, ctx) {
if (rf & 1) {
i0.ɵɵprojectionDef($c0$);
i0.ɵɵprojection(0);
i0.ɵɵprojection(1, 1);
i0.ɵɵprojection(2, 2);
}
},
encapsulation: 2
});
`;
const {source} = compile(files, angularFiles);
expectEmit(source, output, 'Invalid content projection instructions generated');
});
it('should support content projection in nested templates', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
template: \`
<div id="second" *ngIf="visible">
<ng-content SELECT="span[title=toFirst]"></ng-content>
</div>
<div id="third" *ngIf="visible">
No ng-content, no instructions generated.
</div>
<ng-template>
'*' selector: <ng-content></ng-content>
</ng-template>
\`,
})
class Cmp {}
@NgModule({ declarations: [Cmp] })
class Module {}
`
}
};
const output = `
function Cmp_div_0_Template(rf, ctx) { if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 2);
$r3$.ɵɵprojection(1);
$r3$.ɵɵelementEnd();
} }
function Cmp_div_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 3);
$r3$.ɵɵtext(1, " No ng-content, no instructions generated. ");
$r3$.ɵɵelementEnd();
}
}
function Cmp_ng_template_2_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtext(0, " '*' selector: ");
$r3$.ɵɵprojection(1, 1);
}
}
const $_c4$ = [[["span", "title", "tofirst"]], "*"];
consts: [["id", "second", ${AttributeMarker.Template}, "ngIf"], ["id", "third", ${AttributeMarker.Template}, "ngIf"], ["id", "second"], ["id", "third"]],
template: function Cmp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef($_c4$);
$r3$.ɵɵtemplate(0, Cmp_div_0_Template, 2, 0, "div", 0);
$r3$.ɵɵtemplate(1, Cmp_div_1_Template, 2, 0, "div", 1);
$r3$.ɵɵtemplate(2, Cmp_ng_template_2_Template, 2, 0, "ng-template");
}
if (rf & 2) {
$r3$.ɵɵproperty("ngIf", ctx.visible);
$r3$.ɵɵadvance(1);
$r3$.ɵɵproperty("ngIf", ctx.visible);
}
}
`;
const {source} = compile(files, angularFiles);
expectEmit(source, output, 'Invalid content projection instructions generated');
});
it('should support content projection in both the root and nested templates', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
template: \`
<ng-content select="[id=toMainBefore]"></ng-content>
<ng-template>
<ng-content select="[id=toTemplate]"></ng-content>
<ng-template>
<ng-content select="[id=toNestedTemplate]"></ng-content>
</ng-template>
</ng-template>
<ng-template>
'*' selector in a template: <ng-content></ng-content>
</ng-template>
<ng-content select="[id=toMainAfter]"></ng-content>
\`,
})
class Cmp {}
@NgModule({ declarations: [Cmp] })
class Module {}
`
}
};
const output = `
function Cmp_ng_template_1_ng_template_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojection(0, 3);
}
}
function Cmp_ng_template_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojection(0, 2);
$r3$.ɵɵtemplate(1, Cmp_ng_template_1_ng_template_1_Template, 1, 0, "ng-template");
}
}
function Cmp_ng_template_2_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtext(0, " '*' selector in a template: ");
$r3$.ɵɵprojection(1, 4);
}
}
const $_c0$ = [[["", "id", "tomainbefore"]], [["", "id", "tomainafter"]], [["", "id", "totemplate"]], [["", "id", "tonestedtemplate"]], "*"];
const $_c1$ = ["[id=toMainBefore]", "[id=toMainAfter]", "[id=toTemplate]", "[id=toNestedTemplate]", "*"];
template: function Cmp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef($_c0$);
$r3$.ɵɵprojection(0);
$r3$.ɵɵtemplate(1, Cmp_ng_template_1_Template, 2, 0, "ng-template");
$r3$.ɵɵtemplate(2, Cmp_ng_template_2_Template, 2, 0, "ng-template");
$r3$.ɵɵprojection(3, 1);
}
}
`;
const {source} = compile(files, angularFiles);
expectEmit(source, output, 'Invalid content projection instructions generated');
});
it('should parse the selector that is passed into ngProjectAs', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'simple',
template: '<div><ng-content select="[title]"></ng-content></div>'
})
export class SimpleComponent {}
@NgModule({declarations: [SimpleComponent]})
export class MyModule {}
@Component({
selector: 'my-app',
template: '<simple><h1 ngProjectAs="[title]"></h1></simple>'
})
export class MyApp {}
`
}
};
// Note that the c0 and c1 constants aren't being used in this particular test,
// but they are used in some of the logic that is folded under the ellipsis.
const SimpleComponentDefinition = `
const $_c0$ = [[["", "title", ""]]];
const $_c1$ = ["[title]"];
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 2,
vars: 0,
consts: [["ngProjectAs", "[title]", 5, ["", "title", ""]]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "simple");
$r3$.ɵɵelement(1, "h1", 0);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
})`;
const result = compile(files, angularFiles);
expectEmit(
result.source, SimpleComponentDefinition, 'Incorrect SimpleComponent definition');
});
it('should take the first selector if multiple values are passed into ngProjectAs', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'simple',
template: '<div><ng-content select="[title]"></ng-content></div>'
})
export class SimpleComponent {}
@NgModule({declarations: [SimpleComponent]})
export class MyModule {}
@Component({
selector: 'my-app',
template: '<simple><h1 ngProjectAs="[title],[header]"></h1></simple>'
})
export class MyApp {}
`
}
};
// Note that the c0 and c1 constants aren't being used in this particular test,
// but they are used in some of the logic that is folded under the ellipsis.
const SimpleComponentDefinition = `
const $_c0$ = [[["", "title", ""]]];
const $_c1$ = ["[title]"];
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 2,
vars: 0,
consts: [["ngProjectAs", "[title],[header]", 5, ["", "title", ""]]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "simple");
$r3$.ɵɵelement(1, "h1", 0);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
})`;
const result = compile(files, angularFiles);
expectEmit(
result.source, SimpleComponentDefinition, 'Incorrect SimpleComponent definition');
});
it('should include parsed ngProjectAs selectors into template attrs', () => {
const files = {
app: {
'spec.ts': `
import {Component} from '@angular/core';
@Component({
selector: 'my-app',
template: '<div *ngIf="show" ngProjectAs=".someclass"></div>'
})
export class MyApp {
show = true;
}
`
}
};
const SimpleComponentDefinition = `
MyApp.ɵcmp = i0.ɵɵdefineComponent({
type: MyApp,
selectors: [
["my-app"]
],
decls: 1,
vars: 1,
consts: [
["ngProjectAs", ".someclass", ${AttributeMarker.ProjectAs}, ["", 8, "someclass"], ${AttributeMarker.Template}, "ngIf"],
["ngProjectAs", ".someclass", ${AttributeMarker.ProjectAs}, ["", 8, "someclass"]]
],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
i0.ɵɵtemplate(0, MyApp_div_0_Template, 1, 0, "div", 0);
}
if (rf & 2) {
i0.ɵɵproperty("ngIf", ctx.show);
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
expectEmit(result.source, SimpleComponentDefinition, 'Incorrect MyApp definition');
});
});
describe('queries', () => {
const directive = {
'some.directive.ts': `
import {Directive} from '@angular/core';
@Directive({
selector: '[someDir]',
})
export class SomeDirective { }
`
};
it('should support view queries with directives', () => {
const files = {
app: {
...directive,
'view_query.component.ts': `
import {Component, NgModule, ViewChild, ViewChildren} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'view-query-component',
template: \`
<div someDir></div>
\`
})
export class ViewQueryComponent {
@ViewChild(SomeDirective) someDir: SomeDirective;
@ViewChildren(SomeDirective) someDirs: QueryList<SomeDirective>;
}
@NgModule({declarations: [SomeDirective, ViewQueryComponent]})
export class MyModule {}
`
}
};
const ViewQueryComponentDefinition = `
ViewQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ViewQueryComponent,
selectors: [["view-query-component"]],
viewQuery: function ViewQueryComponent_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵviewQuery(SomeDirective, true);
$r3$.ɵɵviewQuery(SomeDirective, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDirs = $tmp$);
}
},
decls: 1,
vars: 0,
consts: [["someDir",""]],
template: function ViewQueryComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
}
},
directives: function () { return [SomeDirective]; },
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ViewQueryComponentDefinition, 'Invalid ViewQuery declaration');
});
it('should support view queries with local refs', () => {
const files = {
app: {
'view_query.component.ts': `
import {Component, NgModule, ViewChild, ViewChildren, QueryList} from '@angular/core';
@Component({
selector: 'view-query-component',
template: \`
<div #myRef></div>
<div #myRef1></div>
\`
})
export class ViewQueryComponent {
@ViewChild('myRef') myRef: any;
@ViewChildren('myRef1, myRef2, myRef3') myRefs: QueryList<any>;
}
@NgModule({declarations: [ViewQueryComponent]})
export class MyModule {}
`
}
};
const ViewQueryComponentDefinition = `
const $e0_attrs$ = ["myRef"];
const $e1_attrs$ = ["myRef1", "myRef2", "myRef3"];
ViewQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
viewQuery: function ViewQueryComponent_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵviewQuery($e0_attrs$, true);
$r3$.ɵɵviewQuery($e1_attrs$, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRef = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRefs = $tmp$);
}
},
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ViewQueryComponentDefinition, 'Invalid ViewQuery declaration');
});
it('should support static view queries', () => {
const files = {
app: {
...directive,
'view_query.component.ts': `
import {Component, NgModule, ViewChild} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'view-query-component',
template: \`
<div someDir></div>
\`
})
export class ViewQueryComponent {
@ViewChild(SomeDirective, {static: true}) someDir !: SomeDirective;
@ViewChild('foo') foo !: ElementRef;
}
@NgModule({declarations: [SomeDirective, ViewQueryComponent]})
export class MyModule {}
`
}
};
const ViewQueryComponentDefinition = `
const $refs$ = ["foo"];
ViewQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ViewQueryComponent,
selectors: [["view-query-component"]],
viewQuery: function ViewQueryComponent_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵstaticViewQuery(SomeDirective, true);
$r3$.ɵɵviewQuery($refs$, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.foo = $tmp$.first);
}
},
decls: 1,
vars: 0,
consts: [["someDir",""]],
template: function ViewQueryComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
}
},
directives: function () { return [SomeDirective]; },
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ViewQueryComponentDefinition, 'Invalid ViewQuery declaration');
});
it('should support view queries with read tokens specified', () => {
const files = {
app: {
...directive,
'view_query.component.ts': `
import {Component, NgModule, ViewChild, ViewChildren, QueryList, ElementRef, TemplateRef} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'view-query-component',
template: \`
<div someDir></div>
<div #myRef></div>
<div #myRef1></div>
\`
})
export class ViewQueryComponent {
@ViewChild('myRef', {read: TemplateRef}) myRef: TemplateRef;
@ViewChildren('myRef1, myRef2, myRef3', {read: ElementRef}) myRefs: QueryList<ElementRef>;
@ViewChild(SomeDirective, {read: ElementRef}) someDir: ElementRef;
@ViewChildren(SomeDirective, {read: TemplateRef}) someDirs: QueryList<TemplateRef>;
}
@NgModule({declarations: [ViewQueryComponent]})
export class MyModule {}
`
}
};
const ViewQueryComponentDefinition = `
const $e0_attrs$ = ["myRef"];
const $e1_attrs$ = ["myRef1", "myRef2", "myRef3"];
ViewQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
viewQuery: function ViewQueryComponent_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵviewQuery($e0_attrs$, true, TemplateRef);
$r3$.ɵɵviewQuery(SomeDirective, true, ElementRef);
$r3$.ɵɵviewQuery($e1_attrs$, true, ElementRef);
$r3$.ɵɵviewQuery(SomeDirective, true, TemplateRef);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRef = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRefs = $tmp$);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDirs = $tmp$);
}
},
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ViewQueryComponentDefinition, 'Invalid ViewQuery declaration');
});
it('should support content queries with directives', () => {
const files = {
app: {
...directive,
'content_query.ts': `
import {Component, ContentChild, ContentChildren, NgModule, QueryList} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'content-query-component',
template: \`
<div><ng-content></ng-content></div>
\`
})
export class ContentQueryComponent {
@ContentChild(SomeDirective) someDir: SomeDirective;
@ContentChildren(SomeDirective) someDirList !: QueryList<SomeDirective>;
}
@Component({
selector: 'my-app',
template: \`
<content-query-component>
<div someDir></div>
</content-query-component>
\`
})
export class MyApp { }
@NgModule({declarations: [SomeDirective, ContentQueryComponent, MyApp]})
export class MyModule { }
`
}
};
const ContentQueryComponentDefinition = `
ContentQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ContentQueryComponent,
selectors: [["content-query-component"]],
contentQueries: function ContentQueryComponent_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵcontentQuery(dirIndex, SomeDirective, true);
$r3$.ɵɵcontentQuery(dirIndex, SomeDirective, false);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDirList = $tmp$);
}
},
ngContentSelectors: _c0,
decls: 2,
vars: 0,
template: function ContentQueryComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef();
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵprojection(1);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ContentQueryComponentDefinition, 'Invalid ContentQuery declaration');
});
it('should support content queries with local refs', () => {
const files = {
app: {
'content_query.component.ts': `
import {Component, ContentChild, ContentChildren, NgModule, QueryList} from '@angular/core';
@Component({
selector: 'content-query-component',
template: \`
<div #myRef></div>
<div #myRef1></div>
\`
})
export class ContentQueryComponent {
@ContentChild('myRef') myRef: any;
@ContentChildren('myRef1, myRef2, myRef3') myRefs: QueryList<any>;
}
@NgModule({declarations: [ContentQueryComponent]})
export class MyModule {}
`
}
};
const ContentQueryComponentDefinition = `
const $e0_attrs$ = ["myRef"];
const $e1_attrs$ = ["myRef1", "myRef2", "myRef3"];
ContentQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
contentQueries: function ContentQueryComponent_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵcontentQuery(dirIndex, $e0_attrs$, true);
$r3$.ɵɵcontentQuery(dirIndex, $e1_attrs$, false);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRef = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRefs = $tmp$);
}
},
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ContentQueryComponentDefinition, 'Invalid ContentQuery declaration');
});
it('should support static content queries', () => {
const files = {
app: {
...directive,
'content_query.ts': `
import {Component, ContentChild, NgModule} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'content-query-component',
template: \`
<div><ng-content></ng-content></div>
\`
})
export class ContentQueryComponent {
@ContentChild(SomeDirective, {static: true}) someDir !: SomeDirective;
@ContentChild('foo') foo !: ElementRef;
}
@Component({
selector: 'my-app',
template: \`
<content-query-component>
<div someDir></div>
</content-query-component>
\`
})
export class MyApp { }
@NgModule({declarations: [SomeDirective, ContentQueryComponent, MyApp]})
export class MyModule { }
`
}
};
const ContentQueryComponentDefinition = `
ContentQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: ContentQueryComponent,
selectors: [["content-query-component"]],
contentQueries: function ContentQueryComponent_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵstaticContentQuery(dirIndex, SomeDirective, true);
$r3$.ɵɵcontentQuery(dirIndex, $ref0$, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.foo = $tmp$.first);
}
},
ngContentSelectors: $_c1$,
decls: 2,
vars: 0,
template: function ContentQueryComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵprojectionDef();
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵprojection(1);
$r3$.ɵɵelementEnd();
}
},
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ContentQueryComponentDefinition, 'Invalid ContentQuery declaration');
});
it('should support content queries with read tokens specified', () => {
const files = {
app: {
...directive,
'content_query.component.ts': `
import {Component, ContentChild, ContentChildren, NgModule, QueryList, ElementRef, TemplateRef} from '@angular/core';
import {SomeDirective} from './some.directive';
@Component({
selector: 'content-query-component',
template: \`
<div someDir></div>
<div #myRef></div>
<div #myRef1></div>
\`
})
export class ContentQueryComponent {
@ContentChild('myRef', {read: TemplateRef}) myRef: TemplateRef;
@ContentChildren('myRef1, myRef2, myRef3', {read: ElementRef}) myRefs: QueryList<ElementRef>;
@ContentChild(SomeDirective, {read: ElementRef}) someDir: ElementRef;
@ContentChildren(SomeDirective, {read: TemplateRef}) someDirs: QueryList<TemplateRef>;
}
@NgModule({declarations: [ContentQueryComponent]})
export class MyModule {}
`
}
};
const ContentQueryComponentDefinition = `
const $e0_attrs$ = ["myRef"];
const $e1_attrs$ = ["myRef1", "myRef2", "myRef3"];
ContentQueryComponent.ɵcmp = $r3$.ɵɵdefineComponent({
contentQueries: function ContentQueryComponent_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵcontentQuery(dirIndex, $e0_attrs$, true, TemplateRef);
$r3$.ɵɵcontentQuery(dirIndex, SomeDirective, true, ElementRef);
$r3$.ɵɵcontentQuery(dirIndex, $e1_attrs$, false, ElementRef);
$r3$.ɵɵcontentQuery(dirIndex, SomeDirective, false, TemplateRef);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRef = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDir = $tmp$.first);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.myRefs = $tmp$);
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.someDirs = $tmp$);
}
},
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, ContentQueryComponentDefinition, 'Invalid ContentQuery declaration');
});
});
describe('pipes', () => {
it('should render pipes', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Pipe, PipeTransform, OnDestroy} from '@angular/core';
@Pipe({
name: 'myPipe',
pure: false
})
export class MyPipe implements PipeTransform,
OnDestroy {
transform(value: any, ...args: any[]) { return value; }
ngOnDestroy(): void { }
}
@Pipe({
name: 'myPurePipe',
pure: true,
})
export class MyPurePipe implements PipeTransform {
transform(value: any, ...args: any[]) { return value; }
}
@Component({
selector: 'my-app',
template: '{{name | myPipe:size | myPurePipe:size }}<p>{{ name | myPipe:1:2:3:4:5 }} {{ name ? 1 : 2 | myPipe }}</p>'
})
export class MyApp {
name = 'World';
size = 0;
}
@NgModule({declarations:[MyPipe, MyPurePipe, MyApp]})
export class MyModule {}
`
}
};
const MyPipeDefinition = `
MyPipe.ɵpipe = $r3$.ɵɵdefinePipe({
name: "myPipe",
type: MyPipe,
pure: false
});
`;
const MyPipeFactoryDef = `
MyPipe.ɵfac = function MyPipe_Factory(t) { return new (t || MyPipe)(); };
`;
const MyPurePipeDefinition = `
MyPurePipe.ɵpipe = $r3$.ɵɵdefinePipe({
name: "myPurePipe",
type: MyPurePipe,
pure: true
});`;
const MyPurePipeFactoryDef = `
MyPurePipe.ɵfac = function MyPurePipe_Factory(t) { return new (t || MyPurePipe)(); };
`;
const MyAppDefinition = `
const $c0$ = function ($a0$) {
return [$a0$, 1, 2, 3, 4, 5];
};
// ...
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 7,
vars: 20,
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtext(0);
$r3$.ɵɵpipe(1, "myPurePipe");
$r3$.ɵɵpipe(2, "myPipe");
$r3$.ɵɵelementStart(3, "p");
$r3$.ɵɵtext(4);
$r3$.ɵɵpipe(5, "myPipe");
$r3$.ɵɵpipe(6, "myPipe");
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵtextInterpolate($r3$.ɵɵpipeBind2(1, 3, $r3$.ɵɵpipeBind2(2, 6, ctx.name, ctx.size), ctx.size));
$r3$.ɵɵadvance(4);
$r3$.ɵɵtextInterpolate2("", $r3$.ɵɵpipeBindV(5, 9, $r3$.ɵɵpureFunction1(18, $c0$, ctx.name)), " ", ctx.name ? 1 : $r3$.ɵɵpipeBind1(6, 16, 2), "");
}
},
pipes: [MyPurePipe, MyPipe],
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyPipeDefinition, 'Invalid pipe definition');
expectEmit(source, MyPipeFactoryDef, 'Invalid pipe factory function');
expectEmit(source, MyPurePipeDefinition, 'Invalid pure pipe definition');
expectEmit(source, MyPurePipeFactoryDef, 'Invalid pure pipe factory function');
expectEmit(source, MyAppDefinition, 'Invalid MyApp definition');
});
it('should use appropriate function for a given no of pipe arguments', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Pipe, PipeTransform, OnDestroy} from '@angular/core';
@Pipe({
name: 'myPipe',
pure: false
})
export class MyPipe implements PipeTransform,
OnDestroy {
transform(value: any, ...args: any[]) { return value; }
ngOnDestroy(): void { }
}
@Component({
selector: 'my-app',
template: '0:{{name | myPipe}}1:{{name | myPipe:1}}2:{{name | myPipe:1:2}}3:{{name | myPipe:1:2:3}}4:{{name | myPipe:1:2:3:4}}'
})
export class MyApp {
}
@NgModule({declarations:[MyPipe, MyApp]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
// ...
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["my-app"]],
decls: 6,
vars: 27,
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtext(0);
$r3$.ɵɵpipe(1, "myPipe");
$r3$.ɵɵpipe(2, "myPipe");
$r3$.ɵɵpipe(3, "myPipe");
$r3$.ɵɵpipe(4, "myPipe");
$r3$.ɵɵpipe(5, "myPipe");
}
if (rf & 2) {
$r3$.ɵɵtextInterpolate5(
"0:", i0.ɵɵpipeBind1(1, 5, ctx.name),
"1:", i0.ɵɵpipeBind2(2, 7, ctx.name, 1),
"2:", i0.ɵɵpipeBind3(3, 10, ctx.name, 1, 2),
"3:", i0.ɵɵpipeBind4(4, 14, ctx.name, 1, 2, 3),
"4:", i0.ɵɵpipeBindV(5, 19, $r3$.ɵɵpureFunction1(25, $c0$, ctx.name)),
""
);
}
},
pipes: [MyPipe],
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid MyApp definition');
});
it('should generate the proper instruction when injecting ChangeDetectorRef into a pipe',
() => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Pipe, PipeTransform, ChangeDetectorRef, Optional} from '@angular/core';
@Pipe({name: 'myPipe'})
export class MyPipe implements PipeTransform {
constructor(changeDetectorRef: ChangeDetectorRef) {}
transform(value: any, ...args: any[]) { return value; }
}
@Pipe({name: 'myOtherPipe'})
export class MyOtherPipe implements PipeTransform {
constructor(@Optional() changeDetectorRef: ChangeDetectorRef) {}
transform(value: any, ...args: any[]) { return value; }
}
@Component({
selector: 'my-app',
template: '{{name | myPipe }}<p>{{ name | myOtherPipe }}</p>'
})
export class MyApp {
name = 'World';
}
@NgModule({declarations:[MyPipe, MyOtherPipe, MyApp]})
export class MyModule {}
`
}
};
const MyPipeDefinition = `
MyPipe.ɵpipe = $r3$.ɵɵdefinePipe({
name: "myPipe",
type: MyPipe,
pure: true
});
`;
const MyPipeFactory = `
MyPipe.ɵfac = function MyPipe_Factory(t) { return new (t || MyPipe)($r3$.ɵɵinjectPipeChangeDetectorRef()); };
`;
const MyOtherPipeDefinition = `
MyOtherPipe.ɵpipe = $r3$.ɵɵdefinePipe({
name: "myOtherPipe",
type: MyOtherPipe,
pure: true
});`;
const MyOtherPipeFactory = `
MyOtherPipe.ɵfac = function MyOtherPipe_Factory(t) { return new (t || MyOtherPipe)($r3$.ɵɵinjectPipeChangeDetectorRef(8)); };
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyPipeDefinition, 'Invalid pipe definition');
expectEmit(source, MyPipeFactory, 'Invalid pipe factory function');
expectEmit(source, MyOtherPipeDefinition, 'Invalid alternate pipe definition');
expectEmit(source, MyOtherPipeFactory, 'Invalid alternate pipe factory function');
});
});
it('local reference', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({selector: 'my-component', template: '<input #user>Hello {{user.value}}!'})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const MyComponentDefinition = `
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 3,
vars: 1,
consts: [["user", ""]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "input", null, 0);
$r3$.ɵɵtext(2);
}
if (rf & 2) {
const $user$ = $r3$.ɵɵreference(1);
$r3$.ɵɵadvance(2);
$r3$.ɵɵtextInterpolate1("Hello ", $user$.value, "!");
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyComponentDefinition, 'Incorrect MyComponent.ɵcmp');
});
it('local references in nested views', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule, TemplateRef} from '@angular/core';
@Directive({selector: '[if]'})
export class IfDirective {
constructor(template: TemplateRef<any>) { }
}
@Component({
selector: 'my-component',
template: \`
<div #foo></div>
{{foo}}
<div *if>
{{foo}}-{{bar}}
<span *if>{{foo}}-{{bar}}-{{baz}}</span>
<span #bar></span>
</div>
<div #baz></div>
\`
})
export class MyComponent {}
@NgModule({declarations: [IfDirective, MyComponent]})
export class MyModule {}
`
}
};
const MyComponentDefinition = `
function MyComponent_div_3_span_2_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "span");
$r3$.ɵɵtext(1);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵnextContext();
const $bar$ = $r3$.ɵɵreference(4);
$r3$.ɵɵnextContext();
const $foo$ = $r3$.ɵɵreference(1);
const $baz$ = $r3$.ɵɵreference(5);
$r3$.ɵɵadvance(1);
$r3$.ɵɵtextInterpolate3("", $foo$, "-", $bar$, "-", $baz$, "");
}
}
function MyComponent_div_3_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵtext(1);
$r3$.ɵɵtemplate(2, MyComponent_div_3_span_2_Template, 2, 3, "span", 1);
$r3$.ɵɵelement(3, "span", null, 3);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $bar$ = $r3$.ɵɵreference(4);
$r3$.ɵɵnextContext();
const $foo$ = $r3$.ɵɵreference(1);
$r3$.ɵɵadvance(1);
$r3$.ɵɵtextInterpolate2(" ", $foo$, "-", $bar$, " ");
}
}
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 6,
vars: 1,
consts: [["foo", ""], [${AttributeMarker.Template}, "if"], ["baz", ""], ["bar", ""]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", null, 0);
$r3$.ɵɵtext(2);
$r3$.ɵɵtemplate(3, MyComponent_div_3_Template, 5, 2, "div", 1);
$r3$.ɵɵelement(4, "div", null, 2);
}
if (rf & 2) {
const $foo$ = $r3$.ɵɵreference(1);
$r3$.ɵɵadvance(2);
$r3$.ɵɵtextInterpolate1(" ", $foo$, " ");
}
},
directives:[IfDirective],
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyComponentDefinition, 'Incorrect MyComponent.ɵcmp');
});
it('should support local refs mixed with context assignments', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`
<div *ngFor="let item of items">
<div #foo></div>
<span *ngIf="showing">
{{ foo }} - {{ item }}
</span>
</div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
const template = `
function MyComponent_div_0_span_3_Template(rf, ctx) {
if (rf & 1) {
$i0$.ɵɵelementStart(0, "span");
$i0$.ɵɵtext(1);
$i0$.ɵɵelementEnd();
}
if (rf & 2) {
const $item$ = $i0$.ɵɵnextContext().$implicit;
const $foo$ = $i0$.ɵɵreference(2);
$r3$.ɵɵadvance(1);
$i0$.ɵɵtextInterpolate2(" ", $foo$, " - ", $item$, " ");
}
}
function MyComponent_div_0_Template(rf, ctx) {
if (rf & 1) {
$i0$.ɵɵelementStart(0, "div");
$i0$.ɵɵelement(1, "div", null, 1);
$i0$.ɵɵtemplate(3, MyComponent_div_0_span_3_Template, 2, 2, "span", 2);
$i0$.ɵɵelementEnd();
}
if (rf & 2) {
const $app$ = $i0$.ɵɵnextContext();
$r3$.ɵɵadvance(3);
$i0$.ɵɵproperty("ngIf", $app$.showing);
}
}
// ...
consts: [[${AttributeMarker.Template}, "ngFor", "ngForOf"], ["foo", ""], [${AttributeMarker.Template}, "ngIf"]],
template:function MyComponent_Template(rf, ctx){
if (rf & 1) {
$i0$.ɵɵtemplate(0, MyComponent_div_0_Template, 4, 1, "div", 0);
}
if (rf & 2) {
$i0$.ɵɵproperty("ngForOf", ctx.items);
}
}`;
const result = compile(files, angularFiles);
expectEmit(result.source, template, 'Incorrect template');
});
describe('lifecycle hooks', () => {
const files = {
app: {
'spec.ts': `
import {Component, Input, NgModule} from '@angular/core';
let events: string[] = [];
@Component({selector: 'lifecycle-comp', template: ''})
export class LifecycleComp {
@Input('name') nameMin: string;
ngOnChanges() { events.push('changes' + this.nameMin); }
ngOnInit() { events.push('init' + this.nameMin); }
ngDoCheck() { events.push('check' + this.nameMin); }
ngAfterContentInit() { events.push('content init' + this.nameMin); }
ngAfterContentChecked() { events.push('content check' + this.nameMin); }
ngAfterViewInit() { events.push('view init' + this.nameMin); }
ngAfterViewChecked() { events.push('view check' + this.nameMin); }
ngOnDestroy() { events.push(this.nameMin); }
}
@Component({
selector: 'simple-layout',
template: \`
<lifecycle-comp [name]="name1"></lifecycle-comp>
<lifecycle-comp [name]="name2"></lifecycle-comp>
\`
})
export class SimpleLayout {
name1 = '1';
name2 = '2';
}
@NgModule({declarations: [LifecycleComp, SimpleLayout]})
export class LifecycleModule {}
`
}
};
it('should gen hooks with a few simple components', () => {
const LifecycleCompDefinition = `
LifecycleComp.ɵcmp = $r3$.ɵɵdefineComponent({
type: LifecycleComp,
selectors: [["lifecycle-comp"]],
inputs: {nameMin: ["name", "nameMin"]},
features: [$r3$.ɵɵNgOnChangesFeature()],
decls: 0,
vars: 0,
template: function LifecycleComp_Template(rf, ctx) {},
encapsulation: 2
});`;
const SimpleLayoutDefinition = `
SimpleLayout.ɵcmp = $r3$.ɵɵdefineComponent({
type: SimpleLayout,
selectors: [["simple-layout"]],
decls: 2,
vars: 2,
consts: [[3, "name"]],
template: function SimpleLayout_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "lifecycle-comp", 0);
$r3$.ɵɵelement(1, "lifecycle-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("name", ctx.name1);
$r3$.ɵɵadvance(1);
$r3$.ɵɵproperty("name", ctx.name2);
}
},
directives: [LifecycleComp],
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, LifecycleCompDefinition, 'Invalid LifecycleComp definition');
expectEmit(source, SimpleLayoutDefinition, 'Invalid SimpleLayout definition');
});
});
describe('template variables', () => {
const shared = {
shared: {
'for_of.ts': `
import {Directive, Input, SimpleChanges, TemplateRef, ViewContainerRef} from '@angular/core';
export interface ForOfContext {
$implicit: any;
index: number;
even: boolean;
odd: boolean;
}
@Directive({selector: '[forOf]'})
export class ForOfDirective {
private previous: any[];
constructor(private view: ViewContainerRef, private template: TemplateRef<any>) {}
@Input() forOf: any[];
ngOnChanges(simpleChanges: SimpleChanges) {
if ('forOf' in simpleChanges) {
this.update();
}
}
ngDoCheck(): void {
const previous = this.previous;
const current = this.forOf;
if (!previous || previous.length != current.length ||
previous.some((value: any, index: number) => current[index] !== previous[index])) {
this.update();
}
}
private update() {
// TODO(chuckj): Not implemented yet
// this.view.clear();
if (this.forOf) {
const current = this.forOf;
for (let i = 0; i < current.length; i++) {
const context = {$implicit: current[i], index: i, even: i % 2 == 0, odd: i % 2 == 1};
// TODO(chuckj): Not implemented yet
// this.view.createEmbeddedView(this.template, context);
}
this.previous = [...this.forOf];
}
}
}
`
}
};
it('should support embedded views in the SVG namespace', () => {
const files = {
app: {
...shared,
'spec.ts': `
import {Component, NgModule} from '@angular/core';
import {ForOfDirective} from './shared/for_of';
@Component({
selector: 'my-component',
template: \`<svg><g *for="let item of items"><circle></circle></g></svg>\`
})
export class MyComponent {
items = [{ data: 42 }, { data: 42 }];
}
@NgModule({
declarations: [MyComponent, ForOfDirective]
})
export class MyModule {}
`
}
};
// TODO(benlesh): Enforce this when the directives are specified
const ForDirectiveDefinition = `
ForOfDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: ForOfDirective,
selectors: [["", "forOf", ""]],
features: [$r3$.ɵɵNgOnChangesFeature()],
inputs: {forOf: "forOf"}
});
`;
const ForDirectiveFactory = `ForOfDirective.ɵfac = function ForOfDirective_Factory(t) {
return new (t || ForOfDirective)($r3$.ɵɵdirectiveInject(ViewContainerRef), $r3$.ɵɵdirectiveInject(TemplateRef));
};`;
const MyComponentDefinition = `
function MyComponent__svg_g_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵnamespaceSVG();
$r3$.ɵɵelementStart(0,"g");
$r3$.ɵɵelement(1,"circle");
$r3$.ɵɵelementEnd();
}
}
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 2,
vars: 1,
consts: [[${AttributeMarker.Template}, "for", "forOf"]],
template: function MyComponent_Template(rf, ctx){
if (rf & 1) {
$r3$.ɵɵnamespaceSVG();
$r3$.ɵɵelementStart(0,"svg");
$r3$.ɵɵtemplate(1, MyComponent__svg_g_1_Template, 2, 0, "g", 0);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵadvance(1);
$r3$.ɵɵproperty("forOf", ctx.items);
}
},
directives: function() { return [ForOfDirective]; },
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
// TODO(benlesh): Enforce this when the directives are specified
// expectEmit(source, ForDirectiveDefinition, 'Invalid directive definition');
// expectEmit(source, ForDirectiveFactory, 'Invalid directive factory');
expectEmit(source, MyComponentDefinition, 'Invalid component definition');
});
it('should support a let variable and reference', () => {
const files = {
app: {
...shared,
'spec.ts': `
import {Component, NgModule} from '@angular/core';
import {ForOfDirective} from './shared/for_of';
@Component({
selector: 'my-component',
template: \`<ul><li *for="let item of items">{{item.name}}</li></ul>\`
})
export class MyComponent {
items = [{name: 'one'}, {name: 'two'}];
}
@NgModule({
declarations: [MyComponent, ForOfDirective]
})
export class MyModule {}
`
}
};
// TODO(chuckj): Enforce this when the directives are specified
const ForDirectiveDefinition = `
ForOfDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: ForOfDirective,
selectors: [["", "forOf", ""]],
features: [$r3$.ɵɵNgOnChangesFeature()],
inputs: {forOf: "forOf"}
});
`;
const ForDirectiveFactory = `
ForOfDirective.ɵfac = function ForOfDirective_Factory(t) {
return new (t || ForOfDirective)($r3$.ɵɵdirectiveInject(ViewContainerRef), $r3$.ɵɵdirectiveInject(TemplateRef));
};
`;
const MyComponentDefinition = `
function MyComponent_li_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "li");
$r3$.ɵɵtext(1);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $item$ = ctx.$implicit;
$r3$.ɵɵadvance(1);
$r3$.ɵɵtextInterpolate($item$.name);
}
}
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 2,
vars: 1,
consts: [[${AttributeMarker.Template}, "for", "forOf"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "ul");
$r3$.ɵɵtemplate(1, MyComponent_li_1_Template, 2, 1, "li", 0);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵadvance(1);
$r3$.ɵɵproperty("forOf", ctx.items);
}
},
directives: function() { return [ForOfDirective]; },
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
const source = result.source;
// TODO(chuckj): Enforce this when the directives are specified
// expectEmit(source, ForDirectiveDefinition, 'Invalid directive definition');
// expectEmit(source, ForDirectiveFactory, 'Invalid directive factory');
expectEmit(source, MyComponentDefinition, 'Invalid component definition');
});
it('should support accessing parent template variables', () => {
const files = {
app: {
...shared,
'spec.ts': `
import {Component, NgModule} from '@angular/core';
import {ForOfDirective} from './shared/for_of';
@Component({
selector: 'my-component',
template: \`
<ul>
<li *for="let item of items">
<div>{{item.name}}</div>
<ul>
<li *for="let info of item.infos">
{{item.name}}: {{info.description}}
</li>
</ul>
</li>
</ul>\`
})
export class MyComponent {
items = [
{name: 'one', infos: [{description: '11'}, {description: '12'}]},
{name: 'two', infos: [{description: '21'}, {description: '22'}]}
];
}
@NgModule({
declarations: [MyComponent, ForOfDirective]
})
export class MyModule {}
`
}
};
const MyComponentDefinition = `
function MyComponent_li_1_li_4_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "li");
$r3$.ɵɵtext(1);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $info$ = ctx.$implicit;
const $item$ = $r3$.ɵɵnextContext().$implicit;
$r3$.ɵɵadvance(1);
$r3$.ɵɵtextInterpolate2(" ", $item$.name, ": ", $info$.description, " ");
}
}
function MyComponent_li_1_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "li");
$r3$.ɵɵelementStart(1, "div");
$r3$.ɵɵtext(2);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(3, "ul");
$r3$.ɵɵtemplate(4, MyComponent_li_1_li_4_Template, 2, 2, "li", 0);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $item$ = ctx.$implicit;
$r3$.ɵɵadvance(2);
$r3$.ɵɵtextInterpolate(IDENT.name);
$r3$.ɵɵadvance(2);
$r3$.ɵɵproperty("forOf", IDENT.infos);
}
}
MyComponent.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyComponent,
selectors: [["my-component"]],
decls: 2,
vars: 1,
consts: [[${AttributeMarker.Template}, "for", "forOf"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "ul");
$r3$.ɵɵtemplate(1, MyComponent_li_1_Template, 5, 2, "li", 0);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵadvance(1);
$r3$.ɵɵproperty("forOf", ctx.items);
}
},
directives: function () { return [ForOfDirective]; },
encapsulation: 2
});`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyComponentDefinition, 'Invalid component definition');
});
});
it('should instantiate directives in a closure when they are forward referenced', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Directive} from '@angular/core';
@Component({
selector: 'host-binding-comp',
template: \`
<my-forward-directive></my-forward-directive>
\`
})
export class HostBindingComp {
}
@Directive({
selector: 'my-forward-directive'
})
class MyForwardDirective {}
@NgModule({declarations: [HostBindingComp, MyForwardDirective]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
directives: function () { return [MyForwardDirective]; }
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid component definition');
});
it('should instantiate pipes in a closure when they are forward referenced', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Pipe} from '@angular/core';
@Component({
selector: 'host-binding-comp',
template: \`
<div [attr.style]="{} | my_forward_pipe">...</div>
\`
})
export class HostBindingComp {
}
@Pipe({
name: 'my_forward_pipe'
})
class MyForwardPipe {}
@NgModule({declarations: [HostBindingComp, MyForwardPipe]})
export class MyModule {}
`
}
};
const MyAppDefinition = `
pipes: function () { return [MyForwardPipe]; }
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, MyAppDefinition, 'Invalid component definition');
});
it('should split multiple `exportAs` values into an array', () => {
const files = {
app: {
'spec.ts': `
import {Directive, NgModule} from '@angular/core';
@Directive({selector: '[some-directive]', exportAs: 'someDir, otherDir'})
export class SomeDirective {}
@NgModule({declarations: [SomeDirective]})
export class MyModule{}
`
}
};
// SomeDirective definition should be:
const SomeDirectiveDefinition = `
SomeDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: SomeDirective,
selectors: [["", "some-directive", ""]],
exportAs: ["someDir", "otherDir"]
});
`;
const result = compile(files, angularFiles);
const source = result.source;
expectEmit(source, SomeDirectiveDefinition, 'Incorrect SomeDirective.ɵdir');
});
it('should not throw for empty property bindings on ng-template', () => {
const files = {
app: {
'example.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-app',
template: '<ng-template [id]=""></ng-template>'
})
export class MyComponent {
}
@NgModule({declarations: [MyComponent]})
export class MyModule {}`
}
};
expect(() => compile(files, angularFiles)).not.toThrow();
});
it('should not generate a selectors array if the directive does not have a selector', () => {
const files = {
app: {
'spec.ts': `
import {Directive} from '@angular/core';
@Directive()
export class AbstractDirective {
}
`
}
};
const expectedOutput = `
// ...
AbstractDirective.ɵdir = $r3$.ɵɵdefineDirective({
type: AbstractDirective
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should generate a pure function for constant object literals', () => {
const files = {
app: {
'spec.ts': `
import {Component} from '@angular/core';
@Component({
template: '<some-comp [prop]="{}" [otherProp]="{a: 1, b: 2}"></some-comp>'
})
export class MyApp {
}
`
}
};
const MyAppDeclaration = `
const $c0$ = function () { return {}; };
const $c1$ = function () { return { a: 1, b: 2 }; };
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["ng-component"]],
decls: 1,
vars: 4,
consts: [[${AttributeMarker.Bindings}, "prop", "otherProp"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "some-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("prop", $r3$.ɵɵpureFunction0(2, $c0$))("otherProp", $r3$.ɵɵpureFunction0(3, $c1$));
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
expectEmit(result.source, MyAppDeclaration, 'Invalid component definition');
});
it('should generate a pure function for constant array literals', () => {
const files = {
app: {
'spec.ts': `
import {Component} from '@angular/core';
@Component({
template: '<some-comp [prop]="[]" [otherProp]="[0, 1, 2]"></some-comp>'
})
export class MyApp {
}
`
}
};
const MyAppDeclaration = `
const $c0$ = function () { return []; };
const $c1$ = function () { return [0, 1, 2]; };
MyApp.ɵcmp = $r3$.ɵɵdefineComponent({
type: MyApp,
selectors: [["ng-component"]],
decls: 1,
vars: 4,
consts: [[${AttributeMarker.Bindings}, "prop", "otherProp"]],
template: function MyApp_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "some-comp", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("prop", $r3$.ɵɵpureFunction0(2, $c0$))("otherProp", $r3$.ɵɵpureFunction0(3, $c1$));
}
},
encapsulation: 2
});
`;
const result = compile(files, angularFiles);
expectEmit(result.source, MyAppDeclaration, 'Invalid component definition');
});
});
describe('inherited base classes', () => {
const directive = {
'some.directive.ts': `
import {Directive} from '@angular/core';
@Directive({
selector: '[someDir]',
})
export class SomeDirective { }
`
};
it('should add an abstract directive if one or more @Input is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Input} from '@angular/core';
export class BaseClass {
@Input()
input1 = 'test';
@Input('alias2')
input2 = 'whatever';
}
@Component({
selector: 'my-component',
template: \`<div>{{input1}} {{input2}}</div>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
inputs: {
input1: "input1",
input2: ["alias2", "input2"]
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if one or more @Output is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Output, EventEmitter} from '@angular/core';
export class BaseClass {
@Output()
output1 = new EventEmitter<string>();
@Output()
output2 = new EventEmitter<string>();
clicked() {
this.output1.emit('test');
this.output2.emit('test');
}
}
@Component({
selector: 'my-component',
template: \`<button (click)="clicked()">Click Me</button>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
outputs: {
output1: "output1",
output2: "output2"
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a mixture of @Input and @Output props are present',
() => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Input, Output, EventEmitter} from '@angular/core';
export class BaseClass {
@Output()
output1 = new EventEmitter<string>();
@Output()
output2 = new EventEmitter<string>();
@Input()
input1 = 'test';
@Input('whatever')
input2 = 'blah';
clicked() {
this.output1.emit('test');
this.output2.emit('test');
}
}
@Component({
selector: 'my-component',
template: \`<button (click)="clicked()">Click Me</button>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
inputs: {
input1: "input1",
input2: ["whatever", "input2"]
},
outputs: {
output1: "output1",
output2: "output2"
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a ViewChild query is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, ViewChild} from '@angular/core';
export class BaseClass {
@ViewChild('something') something: any;
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
const $e0_attrs$ = ["something"];
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
viewQuery: function BaseClass_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵviewQuery($e0_attrs$, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.something = $tmp$.first);
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a ViewChildren query is present', () => {
const files = {
app: {
...directive,
'spec.ts': `
import {Component, NgModule, ViewChildren} from '@angular/core';
import {SomeDirective} from './some.directive';
export class BaseClass {
@ViewChildren(SomeDirective) something: QueryList<SomeDirective>;
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent, SomeDirective]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
viewQuery: function BaseClass_Query(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵviewQuery(SomeDirective, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.something = $tmp$);
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a ContentChild query is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, ContentChild} from '@angular/core';
export class BaseClass {
@ContentChild('something') something: any;
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
const $e0_attrs$ = ["something"];
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
contentQueries: function BaseClass_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵcontentQuery(dirIndex, $e0_attrs$, true);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.something = $tmp$.first);
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a ContentChildren query is present', () => {
const files = {
app: {
...directive,
'spec.ts': `
import {Component, NgModule, ContentChildren} from '@angular/core';
import {SomeDirective} from './some.directive';
export class BaseClass {
@ContentChildren(SomeDirective) something: QueryList<SomeDirective>;
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent, SomeDirective]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
contentQueries: function BaseClass_ContentQueries(rf, ctx, dirIndex) {
if (rf & 1) {
$r3$.ɵɵcontentQuery(dirIndex, SomeDirective, false);
}
if (rf & 2) {
var $tmp$;
$r3$.ɵɵqueryRefresh($tmp$ = $r3$.ɵɵloadQuery()) && (ctx.something = $tmp$);
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a host binding is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, HostBinding} from '@angular/core';
export class BaseClass {
@HostBinding('attr.tabindex')
tabindex = -1;
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
refactor(ivy): move `hostVars`/`hostAttrs` from instruction to `DirectiveDef` (#34683) This change moves information from instructions to declarative position: - `ɵɵallocHostVars(vars)` => `DirectiveDef.hostVars` - `ɵɵelementHostAttrs(attrs)` => `DirectiveDef.hostAttrs` When merging directives it is necessary to know about `hostVars` and `hostAttrs`. Before this change the information was stored in the `hostBindings` function. This was problematic, because in order to get to the information the `hostBindings` would have to be executed. In order for `hostBindings` to be executed the directives would have to be instantiated. This means that the directive instantiation would happen before we had knowledge about the `hostAttrs` and as a result the directive could observe in the constructor that not all of the `hostAttrs` have been applied. This further complicates the runtime as we have to apply `hostAttrs` in parts over many invocations. `ɵɵallocHostVars` was unnecessarily complicated because it would have to update the `LView` (and Blueprint) while existing directives are already executing. By moving it out of `hostBindings` function we can access it statically and we can create correct `LView` (and Blueprint) in a single pass. This change only changes how the instructions are generated, but does not change the runtime much. (We cheat by emulating the old behavior by calling `ɵɵallocHostVars` and `ɵɵelementHostAttrs`) Subsequent change will refactor the runtime to take advantage of the static information. PR Close #34683
2020-01-08 14:32:33 -05:00
hostVars: 1,
hostBindings: function BaseClass_HostBindings(rf, ctx) {
if (rf & 2) {
$r3$.ɵɵattribute("tabindex", ctx.tabindex);
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive if a host listener is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, HostListener} from '@angular/core';
export class BaseClass {
@HostListener('mousedown', ['$event'])
handleMousedown(event: any) {}
}
@Component({
selector: 'my-component',
template: ''
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
hostBindings: function BaseClass_HostBindings(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵlistener("mousedown", function BaseClass_mousedown_HostBindingHandler($event) {
return ctx.handleMousedown($event);
});
}
}
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive when using any lifecycle hook', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Input} from '@angular/core';
export class BaseClass {
ngAfterContentChecked() {}
}
@Component({
selector: 'my-component',
template: \`<div>{{input1}} {{input2}}</div>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should add an abstract directive when using ngOnChanges', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Input} from '@angular/core';
export class BaseClass {
ngOnChanges() {}
}
@Component({
selector: 'my-component',
template: \`<div>{{input1}} {{input2}}</div>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const expectedOutput = `
// ...
BaseClass.ɵdir = $r3$.ɵɵdefineDirective({
type: BaseClass,
features: [$r3$.ɵɵNgOnChangesFeature()]
});
// ...
`;
const result = compile(files, angularFiles);
expectEmit(result.source, expectedOutput, 'Invalid directive definition');
});
it('should NOT add an abstract directive if @Component is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule, Output, EventEmitter} from '@angular/core';
@Component({
selector: 'whatever',
template: '<button (click)="clicked()">Click {{input1}}</button>'
})
export class BaseClass {
@Output()
output1 = new EventEmitter<string>();
@Input()
input1 = 'whatever';
clicked() {
this.output1.emit('test');
}
}
@Component({
selector: 'my-component',
template: \`<div>What is this developer doing?</div>\`
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const result = compile(files, angularFiles);
expect(result.source).not.toContain('ɵdir');
});
it('should NOT add an abstract directive if @Directive is present', () => {
const files = {
app: {
'spec.ts': `
import {Component, Directive, NgModule, Output, EventEmitter} from '@angular/core';
@Directive({
selector: 'whatever',
})
export class BaseClass {
@Output()
output1 = new EventEmitter<string>();
@Input()
input1 = 'whatever';
clicked() {
this.output1.emit('test');
}
}
@Component({
selector: 'my-component',
template: '<button (click)="clicked()">Click {{input1}}</button>'
})
export class MyComponent extends BaseClass {
}
@NgModule({
declarations: [MyComponent]
})
export class MyModule {}
`
}
};
const result = compile(files, angularFiles);
expect(result.source.match(/ɵdir/g) !.length).toBe(1);
});
});
});