6123b9c0c6
The goal of this change is to simplify the emitters, as we will soon create a new one to emit TypeScript nodes directly.
47 lines
1.4 KiB
TypeScript
47 lines
1.4 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {OutputContext, ValueTransformer, visitValue} from '../util';
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import * as o from './output_ast';
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export const QUOTED_KEYS = '$quoted$';
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export function convertValueToOutputAst(
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ctx: OutputContext, value: any, type: o.Type | null = null): o.Expression {
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return visitValue(value, new _ValueOutputAstTransformer(ctx), type);
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}
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class _ValueOutputAstTransformer implements ValueTransformer {
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constructor(private ctx: OutputContext) {}
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visitArray(arr: any[], type: o.Type): o.Expression {
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return o.literalArr(arr.map(value => visitValue(value, this, null)), type);
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}
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visitStringMap(map: {[key: string]: any}, type: o.MapType): o.Expression {
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const entries: o.LiteralMapEntry[] = [];
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const quotedSet = new Set<string>(map && map[QUOTED_KEYS]);
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Object.keys(map).forEach(key => {
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entries.push(
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new o.LiteralMapEntry(key, visitValue(map[key], this, null), quotedSet.has(key)));
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});
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return new o.LiteralMapExpr(entries, type);
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}
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visitPrimitive(value: any, type: o.Type): o.Expression { return o.literal(value, type); }
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visitOther(value: any, type: o.Type): o.Expression {
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if (value instanceof o.Expression) {
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return value;
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} else {
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return this.ctx.importExpr(value);
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}
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}
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}
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