| Index: src/isolate.cc
|
| diff --git a/src/isolate.cc b/src/isolate.cc
|
| index 9a6e6bb33ad007f6465c169e7914016537a29e75..5c7423288ffdf3a36087c8d0e562b79e80f8b9c5 100644
|
| --- a/src/isolate.cc
|
| +++ b/src/isolate.cc
|
| @@ -329,9 +329,16 @@
|
| }
|
|
|
| class StackTraceHelper {
|
| + private:
|
| + enum FrameSkipMode {
|
| + SKIP_FIRST,
|
| + SKIP_UNTIL_SEEN,
|
| + SKIP_NONE,
|
| + };
|
| +
|
| public:
|
| - StackTraceHelper(Isolate* isolate, FrameSkipMode mode, Handle<Object> caller)
|
| - : isolate_(isolate), mode_(mode), caller_(caller) {
|
| + StackTraceHelper(Isolate* isolate, Handle<Object> caller)
|
| + : isolate_(isolate), caller_(caller) {
|
| // The caller parameter can be used to skip a specific set of frames in the
|
| // stack trace. It can be:
|
| // * null, when called from a standard error constructor. We unconditionally
|
| @@ -340,18 +347,15 @@
|
| // * a JSFunction, when called by the user from Error.captureStackTrace().
|
| // We skip each frame until encountering the caller function.
|
| // * For any other value, all frames are included in the trace.
|
| - switch (mode_) {
|
| - case SKIP_FIRST:
|
| - DCHECK(caller_.is_null());
|
| - skip_next_frame_ = true;
|
| - break;
|
| - case SKIP_UNTIL_SEEN:
|
| - DCHECK(caller_->IsJSFunction());
|
| - skip_next_frame_ = true;
|
| - break;
|
| - case SKIP_NONE:
|
| - skip_next_frame_ = false;
|
| - break;
|
| + if (caller_.is_null()) {
|
| + mode_ = SKIP_FIRST;
|
| + skip_next_frame_ = true;
|
| + } else if (caller_->IsJSFunction()) {
|
| + mode_ = SKIP_UNTIL_SEEN;
|
| + skip_next_frame_ = true;
|
| + } else {
|
| + mode_ = SKIP_NONE;
|
| + skip_next_frame_ = false;
|
| }
|
| encountered_strict_function_ = false;
|
| sloppy_frames_ = 0;
|
| @@ -421,8 +425,8 @@
|
|
|
| Isolate* isolate_;
|
|
|
| - const FrameSkipMode mode_;
|
| - const Handle<Object> caller_;
|
| + FrameSkipMode mode_;
|
| + Handle<Object> caller_;
|
| bool skip_next_frame_;
|
|
|
| int sloppy_frames_;
|
| @@ -430,7 +434,6 @@
|
| };
|
|
|
| Handle<Object> Isolate::CaptureSimpleStackTrace(Handle<JSReceiver> error_object,
|
| - FrameSkipMode mode,
|
| Handle<Object> caller) {
|
| DisallowJavascriptExecution no_js(this);
|
|
|
| @@ -449,7 +452,7 @@
|
| Handle<FixedArray> elements =
|
| factory()->NewFixedArrayWithHoles(initial_size * 4 + 1);
|
|
|
| - StackTraceHelper helper(this, mode, caller);
|
| + StackTraceHelper helper(this, caller);
|
|
|
| // First element is reserved to store the number of sloppy frames.
|
| int cursor = 1;
|
| @@ -569,12 +572,10 @@
|
| }
|
|
|
| MaybeHandle<JSReceiver> Isolate::CaptureAndSetSimpleStackTrace(
|
| - Handle<JSReceiver> error_object, FrameSkipMode mode,
|
| - Handle<Object> caller) {
|
| + Handle<JSReceiver> error_object, Handle<Object> caller) {
|
| // Capture stack trace for simple stack trace string formatting.
|
| Handle<Name> key = factory()->stack_trace_symbol();
|
| - Handle<Object> stack_trace =
|
| - CaptureSimpleStackTrace(error_object, mode, caller);
|
| + Handle<Object> stack_trace = CaptureSimpleStackTrace(error_object, caller);
|
| // TODO(jgruber): Set back to STRICT once we have eagerly formatted traces.
|
| RETURN_ON_EXCEPTION(
|
| this, JSReceiver::SetProperty(error_object, key, stack_trace, SLOPPY),
|
| @@ -959,14 +960,20 @@
|
| Object* Isolate::StackOverflow() {
|
| DisallowJavascriptExecution no_js(this);
|
| HandleScope scope(this);
|
| -
|
| - Handle<JSFunction> fun = range_error_function();
|
| - Handle<Object> msg = factory()->NewStringFromAsciiChecked(
|
| - MessageTemplate::TemplateString(MessageTemplate::kStackOverflow));
|
| + // At this point we cannot create an Error object using its javascript
|
| + // constructor. Instead, we copy the pre-constructed boilerplate and
|
| + // attach the stack trace as a hidden property.
|
| Handle<Object> exception;
|
| - ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
|
| - this, exception, ConstructError(this, fun, fun, msg, SKIP_NONE, true));
|
| -
|
| + if (bootstrapper()->IsActive()) {
|
| + // There is no boilerplate to use during bootstrapping.
|
| + exception = factory()->NewStringFromAsciiChecked(
|
| + MessageTemplate::TemplateString(MessageTemplate::kStackOverflow));
|
| + } else {
|
| + Handle<JSObject> boilerplate = stack_overflow_boilerplate();
|
| + Handle<JSObject> copy = factory()->CopyJSObject(boilerplate);
|
| + CaptureAndSetSimpleStackTrace(copy, factory()->undefined_value());
|
| + exception = copy;
|
| + }
|
| Throw(*exception, nullptr);
|
|
|
| #ifdef VERIFY_HEAP
|
|
|