implement dummy enhancement point

packages/transpiler/src/statements/enhancement_point.ts

@@ -0,0 +1,28 @@
+import * as abaplint from "@abaplint/core";
+import {IStatementTranspiler} from "./_statement_transpiler";
+import {Traversal} from "../traversal";
+import {Chunk} from "../chunk";
+
+export class EnhancementPointTranspiler implements IStatementTranspiler {
+
+  public transpile(_node: abaplint.Nodes.StatementNode, _traversal: Traversal): Chunk {
+    // for now, do nothing, but leave a comment
+
+    // ENHANCEMENT-POINT enh_id SPOTS spot1 spot2 ... [STATIC] [INCLUDE BOUND].
+    let enhId: string = "";
+    const spots: string[] = [];
+    for (const tn of _node.getTokenNodes()) {
+      if (tn instanceof abaplint.Nodes.TokenNodeRegex) {
+        if (!enhId) {
+          enhId = tn.get().getStr();
+        } else {
+          spots.push(tn.get().getStr());
+        }
+      }
+    }
+
+    // [Transpiler] EnhancementPoint not implemented. Ignoring 'enh_id' spots 'spot1', 'spot2' ...
+    return new Chunk(`// [Transpiler] EnhancementPoint not implemented. Ignoring '${enhId}' spots '${ spots.join("', '") }'`);
+  }
+
+}

packages/transpiler/src/statements/index.ts

@@ -54,6 +54,7 @@ export * from "./end_loop";
 export * from "./end_method";
 export * from "./end_try";
 export * from "./end_while";
+export * from "./enhancement_point";
 export * from "./enhancement_section";
 export * from "./exit";
 export * from "./export";

test/statements/enhancement_point.ts

@@ -0,0 +1,28 @@
+import {expect} from "chai";
+import {ABAP, MemoryConsole} from "../../packages/runtime/src";
+import {AsyncFunction, runFiles} from "../_utils";
+
+let abap: ABAP;
+
+async function run(contents: string) {
+  return runFiles(abap, [{filename: "zfoobar.prog.abap", contents}]);
+}
+
+describe("Running statements - ENHANCEMENT POINT", () => {
+
+  beforeEach(async () => {
+    abap = new ABAP({console: new MemoryConsole()});
+  });
+
+  it("enhancement point", async () => {
+    const code = `
+WRITE 'hello'.
+ENHANCEMENT-POINT foo SPOTS bar.
+WRITE 'hi'.`;
+    const js = await run(code);
+    const f = new AsyncFunction("abap", js);
+    await f(abap);
+    expect(abap.console.get()).to.equal("hellohi");
+  });
+
+});