Step 147: add JS/TS CST-to-AST parsing

editor/tests/step147_test.cpp

@@ -0,0 +1,48 @@
+// Step 147 TDD Test: JavaScript/TypeScript CST-to-AST
+#include "ast/Parser.h"
+#include <iostream>
+
+static void expect(bool cond, const std::string& name, int& passed, int& failed) {
+    if (cond) {
+        std::cout << "Test " << (passed + failed + 1) << " PASS: " << name << "\n";
+        ++passed;
+    } else {
+        std::cout << "Test " << (passed + failed + 1) << " FAIL: " << name << "\n";
+        ++failed;
+    }
+}
+
+int main() {
+    int passed = 0;
+    int failed = 0;
+
+    std::string js = R"(
+function add(a, b) {
+  return a + b;
+}
+const mul = (x, y) => x * y;
+class Box {
+  size(n) { return n; }
+}
+)";
+
+    auto jsMod = TreeSitterParser::parseJavaScript(js);
+    expect(jsMod != nullptr, "js module created", passed, failed);
+    auto jsFns = jsMod->getChildren("functions");
+    expect(jsFns.size() >= 2, "js functions discovered", passed, failed);
+
+    std::string ts = R"(
+function greet(name: string): string {
+  return "hi " + name;
+}
+const inc = (n: number) => n + 1;
+)";
+    auto tsMod = TreeSitterParser::parseTypeScript(ts);
+    expect(tsMod != nullptr, "ts module created", passed, failed);
+    auto tsFns = tsMod->getChildren("functions");
+    expect(tsFns.size() >= 2, "ts functions discovered", passed, failed);
+
+    std::cout << "\n=== Step 147 Results: " << passed << " passed, "
+              << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}