0a7d10ba55
BREAKING CHANGE: - Injector was renamed into `ReflectiveInjector`, as `Injector` is only an abstract class with one method on it - `Injector.getOptional()` was changed into `Injector.get(token, notFoundValue)` to make implementing injectors simpler - `ViewContainerRef.createComponent` now takes an `Injector` instead of `ResolvedProviders`. If a reflective injector should be used, create one before calling this method. (e.g. via `ReflectiveInjector.resolveAndCreate(…)`.
80 lines
2.8 KiB
TypeScript
80 lines
2.8 KiB
TypeScript
import {isPresent, isBlank} from 'angular2/src/facade/lang';
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import * as o from '../output/output_ast';
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import {
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CompileTokenMetadata,
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CompileDirectiveMetadata,
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CompileIdentifierMetadata
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} from '../compile_metadata';
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import {CompileView} from './compile_view';
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export function getPropertyInView(property: o.Expression, viewPath: CompileView[]): o.Expression {
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if (viewPath.length === 0) {
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return property;
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} else {
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var viewProp: o.Expression = o.THIS_EXPR;
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for (var i = 0; i < viewPath.length; i++) {
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viewProp = viewProp.prop('declarationAppElement').prop('parentView');
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}
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if (property instanceof o.ReadPropExpr) {
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var lastView = viewPath[viewPath.length - 1];
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let readPropExpr: o.ReadPropExpr = property;
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// Note: Don't cast for members of the AppView base class...
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if (lastView.fields.some((field) => field.name == readPropExpr.name) ||
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lastView.getters.some((field) => field.name == readPropExpr.name)) {
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viewProp = viewProp.cast(lastView.classType);
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}
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}
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return o.replaceVarInExpression(o.THIS_EXPR.name, viewProp, property);
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}
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}
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export function injectFromViewParentInjector(token: CompileTokenMetadata,
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optional: boolean): o.Expression {
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var args = [createDiTokenExpression(token)];
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if (optional) {
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args.push(o.NULL_EXPR);
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}
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return o.THIS_EXPR.prop('parentInjector').callMethod('get', args);
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}
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export function getViewFactoryName(component: CompileDirectiveMetadata,
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embeddedTemplateIndex: number): string {
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return `viewFactory_${component.type.name}${embeddedTemplateIndex}`;
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}
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export function createDiTokenExpression(token: CompileTokenMetadata): o.Expression {
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if (isPresent(token.value)) {
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return o.literal(token.value);
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} else if (token.identifierIsInstance) {
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return o.importExpr(token.identifier)
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.instantiate([], o.importType(token.identifier, [], [o.TypeModifier.Const]));
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} else {
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return o.importExpr(token.identifier);
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}
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}
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export function createFlatArray(expressions: o.Expression[]): o.Expression {
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var lastNonArrayExpressions = [];
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var result: o.Expression = o.literalArr([]);
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for (var i = 0; i < expressions.length; i++) {
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var expr = expressions[i];
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if (expr.type instanceof o.ArrayType) {
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if (lastNonArrayExpressions.length > 0) {
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result =
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result.callMethod(o.BuiltinMethod.ConcatArray, [o.literalArr(lastNonArrayExpressions)]);
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lastNonArrayExpressions = [];
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}
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result = result.callMethod(o.BuiltinMethod.ConcatArray, [expr]);
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} else {
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lastNonArrayExpressions.push(expr);
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}
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}
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if (lastNonArrayExpressions.length > 0) {
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result =
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result.callMethod(o.BuiltinMethod.ConcatArray, [o.literalArr(lastNonArrayExpressions)]);
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}
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return result;
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}
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