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refactor(compiler): introduce directive wrappers to generate less code

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- for now only wraps the `@Input` properties and calls
  to `ngOnInit`, `ngDoCheck` and `ngOnChanges` of directives.
- also groups eval sources by NgModule.

Part of #11683
This commit is contained in:
Tobias Bosch
2016-10-13 16:34:37 -07:00
committed by Alex Rickabaugh
parent c951822c35
commit b0a03fcab3
23 changed files with 606 additions and 278 deletions
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21
modules/@angular/compiler/src/view_compiler/lifecycle_binder.ts
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@ -20,27 +20,6 @@ import {DetectChangesVars} from './constants';
var STATE_IS_NEVER_CHECKED = o.THIS_EXPR.prop('numberOfChecks').identical(new o.LiteralExpr(0));
var NOT_THROW_ON_CHANGES = o.not(DetectChangesVars.throwOnChange);
export function bindDirectiveDetectChangesLifecycleCallbacks(
directiveAst: DirectiveAst, directiveInstance: o.Expression, compileElement: CompileElement) {
var view = compileElement.view;
var detectChangesInInputsMethod = view.detectChangesInInputsMethod;
var lifecycleHooks = directiveAst.directive.type.lifecycleHooks;
if (lifecycleHooks.indexOf(LifecycleHooks.OnChanges) !== -1 && directiveAst.inputs.length > 0) {
detectChangesInInputsMethod.addStmt(new o.IfStmt(
DetectChangesVars.changes.notIdentical(o.NULL_EXPR),
[directiveInstance.callMethod('ngOnChanges', [DetectChangesVars.changes]).toStmt()]));
}
if (lifecycleHooks.indexOf(LifecycleHooks.OnInit) !== -1) {
detectChangesInInputsMethod.addStmt(new o.IfStmt(
STATE_IS_NEVER_CHECKED.and(NOT_THROW_ON_CHANGES),
[directiveInstance.callMethod('ngOnInit', []).toStmt()]));
}
if (lifecycleHooks.indexOf(LifecycleHooks.DoCheck) !== -1) {
detectChangesInInputsMethod.addStmt(new o.IfStmt(
NOT_THROW_ON_CHANGES, [directiveInstance.callMethod('ngDoCheck', []).toStmt()]));
}
}
export function bindDirectiveAfterContentLifecycleCallbacks(
directiveMeta: CompileDirectiveMetadata, directiveInstance: o.Expression,
compileElement: CompileElement) {