Tobias Bosch 4cac650675 refactor(compiler): extract expression evaluation and writing to renderer from view_compiler
This is needed to that `DirectiveWrapper`s can also use them later on.

Part of #11683
2016-10-26 14:32:24 -07:00

112 lines
4.0 KiB
TypeScript

/**
* @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 {ChangeDetectionStrategy, ViewEncapsulation} from '@angular/core';
import {CompileIdentifierMetadata} from '../compile_metadata';
import {Identifiers, resolveEnumIdentifier, resolveIdentifier} from '../identifiers';
import * as o from '../output/output_ast';
import {ChangeDetectorStatus, ViewType} from '../private_import_core';
function _enumExpression(classIdentifier: CompileIdentifierMetadata, name: string): o.Expression {
return o.importExpr(resolveEnumIdentifier(classIdentifier, name));
}
export class ViewTypeEnum {
static fromValue(value: ViewType): o.Expression {
const viewType = resolveIdentifier(Identifiers.ViewType);
switch (value) {
case ViewType.HOST:
return _enumExpression(viewType, 'HOST');
case ViewType.COMPONENT:
return _enumExpression(viewType, 'COMPONENT');
case ViewType.EMBEDDED:
return _enumExpression(viewType, 'EMBEDDED');
default:
throw Error(`Inavlid ViewType value: ${value}`);
}
}
}
export class ViewEncapsulationEnum {
static fromValue(value: ViewEncapsulation): o.Expression {
const viewEncapsulation = resolveIdentifier(Identifiers.ViewEncapsulation);
switch (value) {
case ViewEncapsulation.Emulated:
return _enumExpression(viewEncapsulation, 'Emulated');
case ViewEncapsulation.Native:
return _enumExpression(viewEncapsulation, 'Native');
case ViewEncapsulation.None:
return _enumExpression(viewEncapsulation, 'None');
default:
throw Error(`Inavlid ViewEncapsulation value: ${value}`);
}
}
}
export class ChangeDetectionStrategyEnum {
static fromValue(value: ChangeDetectionStrategy): o.Expression {
const changeDetectionStrategy = resolveIdentifier(Identifiers.ChangeDetectionStrategy);
switch (value) {
case ChangeDetectionStrategy.OnPush:
return _enumExpression(changeDetectionStrategy, 'OnPush');
case ChangeDetectionStrategy.Default:
return _enumExpression(changeDetectionStrategy, 'Default');
default:
throw Error(`Inavlid ChangeDetectionStrategy value: ${value}`);
}
}
}
export class ChangeDetectorStatusEnum {
static fromValue(value: ChangeDetectorStatusEnum): o.Expression {
const changeDetectorStatus = resolveIdentifier(Identifiers.ChangeDetectorStatus);
switch (value) {
case ChangeDetectorStatus.CheckOnce:
return _enumExpression(changeDetectorStatus, 'CheckOnce');
case ChangeDetectorStatus.Checked:
return _enumExpression(changeDetectorStatus, 'Checked');
case ChangeDetectorStatus.CheckAlways:
return _enumExpression(changeDetectorStatus, 'CheckAlways');
case ChangeDetectorStatus.Detached:
return _enumExpression(changeDetectorStatus, 'Detached');
case ChangeDetectorStatus.Errored:
return _enumExpression(changeDetectorStatus, 'Errored');
case ChangeDetectorStatus.Destroyed:
return _enumExpression(changeDetectorStatus, 'Destroyed');
default:
throw Error(`Inavlid ChangeDetectorStatus value: ${value}`);
}
}
}
export class ViewConstructorVars {
static viewUtils = o.variable('viewUtils');
static parentInjector = o.variable('parentInjector');
static declarationEl = o.variable('declarationEl');
}
export class ViewProperties {
static renderer = o.THIS_EXPR.prop('renderer');
static projectableNodes = o.THIS_EXPR.prop('projectableNodes');
static viewUtils = o.THIS_EXPR.prop('viewUtils');
}
export class InjectMethodVars {
static token = o.variable('token');
static requestNodeIndex = o.variable('requestNodeIndex');
static notFoundResult = o.variable('notFoundResult');
}
export class DetectChangesVars {
static throwOnChange = o.variable(`throwOnChange`);
static changes = o.variable(`changes`);
static changed = o.variable(`changed`);
}