1 files changed, 57 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/isAsyncFunction-isGeneratorFunction.js b/js/src/jit-test/tests/debug/isAsyncFunction-isGeneratorFunction.js
new file mode 100644
index 0000000000..fd2df0277b
--- /dev/null
+++ b/js/src/jit-test/tests/debug/isAsyncFunction-isGeneratorFunction.js
@@ -0,0 +1,57 @@
+// Debugger.Script.prototype.isAsyncFunction, Debugger.Object.prototype.isAsyncFunction,
+// Debugger.Script.prototype.isGeneratorFunction, Debugger.Object.prototype.isGeneratorFunction
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger();
+var gDO = dbg.addDebuggee(g);
+g.non_debuggee = function non_debuggee () {}
+
+function checkExpr(expr, { isAsync, isGenerator })
+{
+  print("Evaluating: " + JSON.stringify(expr));
+  let completion = gDO.executeInGlobal(expr);
+  if (completion.throw)
+    throw completion.throw.unsafeDereference();
+
+  let fn = completion.return;
+  assertEq(fn.isAsyncFunction, isAsync);
+  assertEq(fn.isGeneratorFunction, isGenerator);
+
+  // The Debugger.Object and its Debugger.Script should always agree.
+  if (fn.script) {
+    assertEq(fn.isAsyncFunction, fn.script.isAsyncFunction);
+    assertEq(fn.isGeneratorFunction, fn.script.isGeneratorFunction);
+  }
+}
+
+checkExpr('({})', { isAsync: undefined, isGenerator: undefined });
+checkExpr('non_debuggee', { isAsync: undefined, isGenerator: undefined });
+checkExpr('(function(){})', { isAsync: false, isGenerator: false });
+checkExpr('(function*(){})', { isAsync: false, isGenerator: true });
+checkExpr('(async function snerf(){})', { isAsync: true, isGenerator: false });
+checkExpr('(async function* omlu(){})', { isAsync: true, isGenerator: true });
+
+checkExpr('new Function("1+2")', { isAsync: false, isGenerator: false });
+checkExpr('Object.getPrototypeOf(function*(){}).constructor("1+2")',
+          { isAsync: false, isGenerator: true });
+checkExpr('Object.getPrototypeOf(async function(){}).constructor("1+2")',
+          { isAsync: true, isGenerator: false });
+checkExpr('Object.getPrototypeOf(async function*(){}).constructor("1+2")',
+          { isAsync: true, isGenerator: true });
+
+// Check eval scripts.
+function checkFrame(expr, type)
+{
+  var log = '';
+  dbg.onDebuggerStatement = function(frame) {
+    log += 'd';
+    assertEq(frame.type, type);
+    assertEq(frame.script.isAsyncFunction, false);
+    assertEq(frame.script.isGeneratorFunction, false);
+  }
+  gDO.executeInGlobal(expr);
+  assertEq(log, 'd');
+}
+
+checkFrame('debugger;', 'global');
+checkFrame('eval("debugger;")', 'eval');