39 lines
1.2 KiB
TypeScript
39 lines
1.2 KiB
TypeScript
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/**
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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 {StaticSymbol} from '../aot/static_symbol';
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import * as o from '../output/output_ast';
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import {OutputContext} from '../util';
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/**
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* Convert an object map with `Expression` values into a `LiteralMapExpr`.
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*/
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export function mapToMapExpression(map: {[key: string]: o.Expression}): o.LiteralMapExpr {
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const result = Object.keys(map).map(key => ({key, value: map[key], quoted: false}));
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return o.literalMap(result);
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}
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/**
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* Convert metadata into an `Expression` in the given `OutputContext`.
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*
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* This operation will handle arrays, references to symbols, or literal `null` or `undefined`.
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*/
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export function convertMetaToOutput(meta: any, ctx: OutputContext): o.Expression {
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if (Array.isArray(meta)) {
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return o.literalArr(meta.map(entry => convertMetaToOutput(entry, ctx)));
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}
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if (meta instanceof StaticSymbol) {
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return ctx.importExpr(meta);
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}
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if (meta == null) {
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return o.literal(meta);
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}
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throw new Error(`Internal error: Unsupported or unknown metadata: ${meta}`);
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}
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