Merge parser and expressions into repository

actions-expressions/src/evaluator.test.ts

@@ -0,0 +1,27 @@
+import * as data from "./data";
+import { Evaluator } from "./evaluator";
+import { Lexer } from "./lexer";
+import { Parser } from "./parser";
+
+test("evaluator", () => {
+  const input = "foo['']";
+
+  const lexer = new Lexer(input);
+  const result = lexer.lex();
+
+  // Parse
+  const parser = new Parser(result.tokens, ["foo"], []);
+  const expr = parser.parse();
+
+  // Evaluate expression
+  const evaluator = new Evaluator(
+    expr,
+    new data.Dictionary({
+      key: "foo",
+      value: new data.Dictionary({ key: "bar", value: new data.NumberData(42) }),
+    })
+  );
+  const eresult = evaluator.evaluate();
+
+  expect(eresult.kind).toBe(data.Kind.Null);
+});