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From 5f3e5dd6901b54707ea4f868d8fa7317c4ab3852 Mon Sep 17 00:00:00 2001
From: Jedrzej Nowacki <jedrzej.nowacki@nokia.com>
Date: Tue, 7 Dec 2010 11:56:42 +0100
Subject: [PATCH 11/15] QtScript/V8: Add new v8 api to check if a value is an
error.
New function v8::Value::IsError was created.
This API is experimental and added only for the purposes of our
research.
---
include/v8.h | 5 +++++
src/api.cc | 6 ++++++
src/heap.h | 1 +
3 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/include/v8.h b/include/v8.h
index 18527e1..43e00f5 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -937,6 +937,11 @@ class Value : public Data {
*/
V8EXPORT bool IsRegExp() const;
+ /**
+ * Returns true if this value is an Error.
+ */
+ V8EXPORT bool IsError() const;
+
V8EXPORT Local<Boolean> ToBoolean() const;
V8EXPORT Local<Number> ToNumber() const;
V8EXPORT Local<String> ToString() const;
diff --git a/src/api.cc b/src/api.cc
index 1a585d6..bd435eb 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2108,6 +2108,12 @@ bool Value::IsRegExp() const {
return obj->IsJSRegExp();
}
+bool Value::IsError() const {
+ if (IsDeadCheck(i::Isolate::Current(), "v8::Value::IsError()")) return false;
+ i::Handle<i::Object> obj = Utils::OpenHandle(this);
+ return obj->HasSpecificClassOf(HEAP->Error_symbol());
+}
+
Local<String> Value::ToString() const {
i::Handle<i::Object> obj = Utils::OpenHandle(this);
diff --git a/src/heap.h b/src/heap.h
index 8cbf378..db90bb9 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -169,6 +169,7 @@ inline Heap* _inline_get_heap_();
V(string_symbol, "string") \
V(String_symbol, "String") \
V(Date_symbol, "Date") \
+ V(Error_symbol, "Error") \
V(this_symbol, "this") \
V(to_string_symbol, "toString") \
V(char_at_symbol, "CharAt") \
--
1.7.4.4
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