4d7ff7edc5
The goal is to be able to modify values of variables used in templates. It enables future functionality such as escaping, inlining etc. It adds support applying predefined pipes to variables. Pipes can be applied to variable substitution in with and parameter substitution expressions. They work in similar way to piping in Unix where each pipe applied to the compiled result of pipe before. It adds support for using pipes in `with` and parameter substitution expressions. It also refactors how their regex is build to reuse more of the logic by abstracting regex building into a new class. Finally, it separates and extends documentation for templating.
36 lines
1.8 KiB
TypeScript
36 lines
1.8 KiB
TypeScript
import { ExpressionPosition } from '@/application/Parser/Script/Compiler/Expressions/Expression/ExpressionPosition';
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import { IExpression } from '@/application/Parser/Script/Compiler/Expressions/Expression/IExpression';
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import { IReadOnlyFunctionParameterCollection } from '@/application/Parser/Script/Compiler/Function/Parameter/IFunctionParameterCollection';
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import { FunctionParameterCollectionStub } from './FunctionParameterCollectionStub';
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import { IExpressionEvaluationContext } from '@/application/Parser/Script/Compiler/Expressions/Expression/ExpressionEvaluationContext';
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export class ExpressionStub implements IExpression {
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public callHistory = new Array<IExpressionEvaluationContext>();
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public position = new ExpressionPosition(0, 5);
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public parameters: IReadOnlyFunctionParameterCollection = new FunctionParameterCollectionStub();
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private result: string;
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public withParameters(parameters: IReadOnlyFunctionParameterCollection) {
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this.parameters = parameters;
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return this;
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}
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public withParameterNames(parameterNames: readonly string[], isOptional = false) {
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const collection = new FunctionParameterCollectionStub()
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.withParameterNames(parameterNames, isOptional);
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return this.withParameters(collection);
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}
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public withPosition(start: number, end: number) {
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this.position = new ExpressionPosition(start, end);
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return this;
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}
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public withEvaluatedResult(result: string) {
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this.result = result;
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return this;
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}
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public evaluate(context: IExpressionEvaluationContext): string {
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const args = context.args;
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this.callHistory.push(context);
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const result = this.result || `[expression-stub] args: ${args ? Object.keys(args).map((key) => `${key}: ${args[key]}`).join('", "') : 'none'}`;
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return result;
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}
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}
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