1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-errorLineNumber-errorColumnNumber.js b/js/src/jit-test/tests/debug/Object-errorLineNumber-errorColumnNumber.js
new file mode 100644
index 0000000000..a581f93b6e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-errorLineNumber-errorColumnNumber.js
@@ -0,0 +1,55 @@
+// Debugger.Object.prototype.{errorLineNumber,errorColumnNumber} return the
+// line number and column number associated with some error object.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger();
+var gw = dbg.addDebuggee(g);
+
+var syntaxError = gw.executeInGlobal("\nlet a, a;").throw;
+assertEq(syntaxError.errorLineNumber, 2);
+assertEq(syntaxError.errorColumnNumber, 7);
+
+var typeError = gw.executeInGlobal("\n1 + f();").throw;
+assertEq(typeError.errorLineNumber, 2);
+assertEq(typeError.errorColumnNumber, 1);
+
+// Custom errors have no line/column numbers .
+var customError = gw.executeInGlobal("\nthrow 1;").throw;
+assertEq(customError.errorLineNumber, undefined);
+assertEq(customError.errorColumnNumber, undefined);
+
+customError = gw.executeInGlobal("\nthrow { errorLineNumber: 10, errorColumnNumber: 20 };").throw;
+assertEq(customError.errorLineNumber, undefined);
+assertEq(customError.errorColumnNumber, undefined);
+
+customError = gw.executeInGlobal("\nthrow { lineNumber: 10, columnNumber: 20 };").throw;
+assertEq(customError.errorLineNumber, undefined);
+assertEq(customError.errorColumnNumber, undefined);
+
+// Ensure that the method works across globals.
+g.eval(`var g = newGlobal({newCompartment: true});
+        g.eval('var err; \\n' +
+               'try {\\n' +
+               '  f();\\n' +
+               '} catch (e) {\\n' +
+               '  err = e;\\n' +
+               '}');
+        var err2 = g.err;`);
+var otherGlobalError = gw.executeInGlobal("throw err2").throw;
+assertEq(otherGlobalError.errorLineNumber, 3);
+assertEq(otherGlobalError.errorColumnNumber, 3);
+
+// Ensure that non-error objects return undefined.
+const Args = [
+    "1",
+    "'blah'",
+    "({})",
+    "[]",
+    "() => 1"
+]
+
+for (let arg of Args) {
+    let nonError = gw.executeInGlobal(`${arg}`).return;
+    assertEq(nonError.errorLineNumber, undefined);
+    assertEq(nonError.errorColumnNumber, undefined);
+}