1283712 - Part 5: Support notes in Debugger.

js/src/jscntxt.cpp

@@ -921,6 +921,52 @@ js::ReportValueErrorFlags(JSContext* cx, unsigned flags, const unsigned errorNum
     return ok;
 }
 
+JSObject*
+js::CreateErrorNotesArray(JSContext* cx, JSErrorReport* report)
+{
+    RootedArrayObject notesArray(cx, NewDenseEmptyArray(cx));
+    if (!notesArray)
+        return nullptr;
+
+    if (!report->notes)
+        return notesArray;
+
+    for (auto&& note : *report->notes) {
+        RootedPlainObject noteObj(cx, NewBuiltinClassInstance<PlainObject>(cx));
+        if (!noteObj)
+            return nullptr;
+
+        RootedString messageStr(cx, note->newMessageString(cx));
+        if (!messageStr)
+            return nullptr;
+        RootedValue messageVal(cx, StringValue(messageStr));
+        if (!DefineProperty(cx, noteObj, cx->names().message, messageVal))
+            return nullptr;
+
+        RootedValue filenameVal(cx);
+        if (note->filename) {
+            RootedString filenameStr(cx, NewStringCopyZ<CanGC>(cx, note->filename));
+            if (!filenameStr)
+                return nullptr;
+            filenameVal = StringValue(filenameStr);
+        }
+        if (!DefineProperty(cx, noteObj, cx->names().fileName, filenameVal))
+            return nullptr;
+
+        RootedValue linenoVal(cx, Int32Value(note->lineno));
+        if (!DefineProperty(cx, noteObj, cx->names().lineNumber, linenoVal))
+            return nullptr;
+        RootedValue columnVal(cx, Int32Value(note->column));
+        if (!DefineProperty(cx, noteObj, cx->names().columnNumber, columnVal))
+            return nullptr;
+
+        if (!NewbornArrayPush(cx, notesArray, ObjectValue(*noteObj)))
+            return nullptr;
+    }
+
+    return notesArray;
+}
+
 const JSErrorFormatString js_ErrorFormatString[JSErr_Limit] = {
 #define MSG_DEF(name, count, exception, format) \
     { #name, format, count, exception } ,

js/src/jscntxt.h

@@ -685,6 +685,9 @@ ReportValueErrorFlags(JSContext* cx, unsigned flags, const unsigned errorNumber,
     ((void)ReportValueErrorFlags(cx, JSREPORT_ERROR, errorNumber,             \
                                     spindex, v, fallback, arg1, arg2))
 
+JSObject*
+CreateErrorNotesArray(JSContext* cx, JSErrorReport* report);
+
 } /* namespace js */
 
 extern const JSErrorFormatString js_ErrorFormatString[JSErr_Limit];

js/src/vm/Debugger.cpp

@@ -8665,6 +8665,14 @@ DebuggerObject::errorMessageNameGetter(JSContext *cx, unsigned argc, Value* vp)
     return true;
 }
 
+/* static */ bool
+DebuggerObject::errorNotesGetter(JSContext *cx, unsigned argc, Value* vp)
+{
+    THIS_DEBUGOBJECT(cx, argc, vp, "get errorNotes", args, object)
+
+    return DebuggerObject::getErrorNotes(cx, object, args.rval());
+}
+
 /* static */ bool
 DebuggerObject::errorLineNumberGetter(JSContext *cx, unsigned argc, Value* vp)
 {
@@ -9324,6 +9332,7 @@ const JSPropertySpec DebuggerObject::properties_[] = {
     JS_PSG("global", DebuggerObject::globalGetter, 0),
     JS_PSG("allocationSite", DebuggerObject::allocationSiteGetter, 0),
     JS_PSG("errorMessageName", DebuggerObject::errorMessageNameGetter, 0),
+    JS_PSG("errorNotes", DebuggerObject::errorNotesGetter, 0),
     JS_PSG("errorLineNumber", DebuggerObject::errorLineNumberGetter, 0),
     JS_PSG("errorColumnNumber", DebuggerObject::errorColumnNumberGetter, 0),
     JS_PSG("isProxy", DebuggerObject::isProxyGetter, 0),
@@ -9694,6 +9703,30 @@ DebuggerObject::getErrorMessageName(JSContext* cx, HandleDebuggerObject object,
     return true;
 }
 
+/* static */ bool
+DebuggerObject::getErrorNotes(JSContext* cx, HandleDebuggerObject object,
+                              MutableHandleValue result)
+{
+    RootedObject referent(cx, object->referent());
+    JSErrorReport* report;
+    if (!getErrorReport(cx, referent, report))
+        return false;
+
+    if (!report) {
+        result.setUndefined();
+        return true;
+    }
+
+    RootedObject errorNotesArray(cx, CreateErrorNotesArray(cx, report));
+    if (!errorNotesArray)
+        return false;
+
+    if (!cx->compartment()->wrap(cx, &errorNotesArray))
+        return false;
+    result.setObject(*errorNotesArray);
+    return true;
+}
+
 /* static */ bool
 DebuggerObject::getErrorLineNumber(JSContext* cx, HandleDebuggerObject object,
                                    MutableHandleValue result)

js/src/vm/Debugger.h

@@ -1246,6 +1246,8 @@ class DebuggerObject : public NativeObject
                                             MutableHandleObject result);
     static MOZ_MUST_USE bool getErrorMessageName(JSContext* cx, HandleDebuggerObject object,
                                                  MutableHandleString result);
+    static MOZ_MUST_USE bool getErrorNotes(JSContext* cx, HandleDebuggerObject object,
+                                           MutableHandleValue result);
     static MOZ_MUST_USE bool getErrorLineNumber(JSContext* cx, HandleDebuggerObject object,
                                                 MutableHandleValue result);
     static MOZ_MUST_USE bool getErrorColumnNumber(JSContext* cx, HandleDebuggerObject object,
@@ -1371,6 +1373,7 @@ class DebuggerObject : public NativeObject
     static MOZ_MUST_USE bool globalGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool allocationSiteGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool errorMessageNameGetter(JSContext* cx, unsigned argc, Value* vp);
+    static MOZ_MUST_USE bool errorNotesGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool errorLineNumberGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool errorColumnNumberGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool isProxyGetter(JSContext* cx, unsigned argc, Value* vp);