refactor script compilation to make it easy to add new expressions #41 #53

tests/unit/stubs/ExpressionStub.ts

@@ -0,0 +1,26 @@
+import { ExpressionPosition } from '@/application/Parser/Script/Compiler/Expressions/Expression/ExpressionPosition';
+import { ExpressionArguments, IExpression } from '@/application/Parser/Script/Compiler/Expressions/Expression/IExpression';
+
+export class ExpressionStub implements IExpression {
+    public callHistory = new Array<ExpressionArguments>();
+    public position = new ExpressionPosition(0, 5);
+    public parameters = [];
+    private result: string;
+    public withParameters(...parameters: string[]) {
+        this.parameters = parameters;
+        return this;
+    }
+    public withPosition(start: number, end: number) {
+        this.position = new ExpressionPosition(start, end);
+        return this;
+    }
+    public withEvaluatedResult(result: string) {
+        this.result = result;
+        return this;
+    }
+    public evaluate(args?: ExpressionArguments): string {
+        this.callHistory.push(args);
+        const result = this.result || `[expression-stub] args: ${args ? Object.keys(args).map((key) => `${key}: ${args[key]}`).join('", "') : 'none'}`;
+        return result;
+    }
+}