Version 2.4.0.
Fix bug in Object.freeze and Object.seal when Array.prototype or Object.prototype is changed (issue 842).
Update Array.splice to follow Safari and Firefox when called with zero arguments.
Fix a missing live register when breaking at keyed loads on ARM.
Performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@5388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/parser.h b/src/parser.h
index 225a368..2952581 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -68,11 +68,18 @@
void set_literal_count(int value) { backing_[kLiteralCountOffset] = value; }
int property_count() { return backing_[kPropertyCountOffset]; }
- void set_property_count(int value) { backing_[kPropertyCountOffset] = value; }
+ void set_property_count(int value) {
+ backing_[kPropertyCountOffset] = value;
+ }
+
+ int predata_skip() { return backing_[kPredataSkipOffset]; }
+ void set_predata_skip(int value) {
+ backing_[kPredataSkipOffset] = value;
+ }
bool is_valid() { return backing_.length() > 0; }
- static const int kSize = 4;
+ static const int kSize = 5;
private:
Vector<unsigned> backing_;
@@ -80,6 +87,7 @@
static const int kEndPosOffset = 1;
static const int kLiteralCountOffset = 2;
static const int kPropertyCountOffset = 3;
+ static const int kPredataSkipOffset = 4;
};
@@ -87,12 +95,13 @@
public:
explicit ScriptDataImpl(Vector<unsigned> store)
: store_(store),
- last_entry_(0) { }
+ index_(kHeaderSize) { }
virtual ~ScriptDataImpl();
virtual int Length();
virtual const char* Data();
virtual bool HasError();
- FunctionEntry GetFunctionEnd(int start);
+ FunctionEntry GetFunctionEntry(int start);
+ void SkipFunctionEntry(int start);
bool SanityCheck();
Scanner::Location MessageLocation();
@@ -102,31 +111,33 @@
bool has_error() { return store_[kHasErrorOffset]; }
unsigned magic() { return store_[kMagicOffset]; }
unsigned version() { return store_[kVersionOffset]; }
+ // Skip forward in the preparser data by the given number
+ // of unsigned ints.
+ virtual void Skip(int entries) {
+ ASSERT(entries >= 0);
+ ASSERT(entries <= store_.length() - index_);
+ index_ += entries;
+ }
static const unsigned kMagicNumber = 0xBadDead;
static const unsigned kCurrentVersion = 1;
- static const unsigned kMagicOffset = 0;
- static const unsigned kVersionOffset = 1;
- static const unsigned kHasErrorOffset = 2;
- static const unsigned kSizeOffset = 3;
- static const unsigned kHeaderSize = 4;
+ static const int kMagicOffset = 0;
+ static const int kVersionOffset = 1;
+ static const int kHasErrorOffset = 2;
+ static const int kSizeOffset = 3;
+ static const int kHeaderSize = 4;
private:
+ Vector<unsigned> store_;
+ int index_;
+
unsigned Read(int position);
unsigned* ReadAddress(int position);
- int EntryCount();
- FunctionEntry nth(int n);
- Vector<unsigned> store_;
-
+ void FindStart(int position);
// Read strings written by ParserRecorder::WriteString.
static const char* ReadString(unsigned* start, int* chars);
-
- // The last entry returned. This is used to make lookup faster:
- // the next entry to return is typically the next entry so lookup
- // will usually be much faster if we start from the last entry.
- int last_entry_;
};