#include "CallFrame.h"
#include "Register.h"
-#include "WriteBarrier.h"
#include <wtf/HashSet.h>
#include <wtf/Vector.h>
namespace JSC {
- class SlotVisitor;
-
- class MarkedArgumentBuffer {
- WTF_MAKE_NONCOPYABLE(MarkedArgumentBuffer);
- friend class JSGlobalData;
- friend class ArgList;
-
- private:
- static const size_t inlineCapacity = 8;
- typedef Vector<Register, inlineCapacity> VectorType;
- typedef HashSet<MarkedArgumentBuffer*> ListSet;
-
- public:
- // Constructor for a read-write list, to which you may append values.
- // FIXME: Remove all clients of this API, then remove this API.
- MarkedArgumentBuffer()
- : m_size(0)
- , m_capacity(inlineCapacity)
- , m_buffer(&m_inlineBuffer[m_capacity - 1])
- , m_markSet(0)
- {
- }
-
- ~MarkedArgumentBuffer()
- {
- if (m_markSet)
- m_markSet->remove(this);
-
- if (EncodedJSValue* base = mallocBase())
- delete [] base;
- }
-
- size_t size() const { return m_size; }
- bool isEmpty() const { return !m_size; }
-
- JSValue at(int i) const
- {
- if (i >= m_size)
- return jsUndefined();
-
- return JSValue::decode(slotFor(i));
- }
-
- void clear()
- {
- m_size = 0;
- }
-
- void append(JSValue v)
- {
- if (m_size >= m_capacity)
- return slowAppend(v);
-
- slotFor(m_size) = JSValue::encode(v);
- ++m_size;
- }
-
- void removeLast()
- {
- ASSERT(m_size);
- m_size--;
- }
-
- JSValue last()
- {
- ASSERT(m_size);
- return JSValue::decode(slotFor(m_size - 1));
- }
+class SlotVisitor;
+
+class MarkedArgumentBuffer {
+ WTF_MAKE_NONCOPYABLE(MarkedArgumentBuffer);
+ friend class VM;
+ friend class ArgList;
+
+private:
+ static const size_t inlineCapacity = 8;
+ typedef HashSet<MarkedArgumentBuffer*> ListSet;
+
+public:
+ // Constructor for a read-write list, to which you may append values.
+ // FIXME: Remove all clients of this API, then remove this API.
+ MarkedArgumentBuffer()
+ : m_size(0)
+ , m_capacity(inlineCapacity)
+ , m_buffer(&m_inlineBuffer[m_capacity - 1])
+ , m_markSet(0)
+ {
+ }
+
+ ~MarkedArgumentBuffer()
+ {
+ if (m_markSet)
+ m_markSet->remove(this);
+
+ if (EncodedJSValue* base = mallocBase())
+ delete [] base;
+ }
+
+ size_t size() const { return m_size; }
+ bool isEmpty() const { return !m_size; }
+
+ JSValue at(int i) const
+ {
+ if (i >= m_size)
+ return jsUndefined();
+
+ return JSValue::decode(slotFor(i));
+ }
+
+ void clear()
+ {
+ m_size = 0;
+ }
+
+ void append(JSValue v)
+ {
+ if (m_size >= m_capacity)
+ return slowAppend(v);
+
+ slotFor(m_size) = JSValue::encode(v);
+ ++m_size;
+ }
+
+ void removeLast()
+ {
+ ASSERT(m_size);
+ m_size--;
+ }
+
+ JSValue last()
+ {
+ ASSERT(m_size);
+ return JSValue::decode(slotFor(m_size - 1));
+ }
- static void markLists(HeapRootVisitor&, ListSet&);
+ static void markLists(HeapRootVisitor&, ListSet&);
- private:
- JS_EXPORT_PRIVATE void slowAppend(JSValue);
+private:
+ JS_EXPORT_PRIVATE void slowAppend(JSValue);
- EncodedJSValue& slotFor(int item) const
- {
- return m_buffer[-item];
- }
+ EncodedJSValue& slotFor(int item) const
+ {
+ return m_buffer[-item];
+ }
- EncodedJSValue* mallocBase()
- {
- if (m_capacity == static_cast<int>(inlineCapacity))
- return 0;
- return &slotFor(m_capacity - 1);
- }
+ EncodedJSValue* mallocBase()
+ {
+ if (m_capacity == static_cast<int>(inlineCapacity))
+ return 0;
+ return &slotFor(m_capacity - 1);
+ }
- int m_size;
- int m_capacity;
- EncodedJSValue m_inlineBuffer[inlineCapacity];
- EncodedJSValue* m_buffer;
- ListSet* m_markSet;
-
- private:
- // Prohibits new / delete, which would break GC.
- void* operator new(size_t size)
- {
- return fastMalloc(size);
- }
- void operator delete(void* p)
- {
- fastFree(p);
- }
-
- void* operator new[](size_t);
- void operator delete[](void*);
-
- void* operator new(size_t, void*);
- void operator delete(void*, size_t);
- };
-
- class ArgList {
- friend class JIT;
- public:
- ArgList()
- : m_args(0)
- , m_argCount(0)
- {
- }
-
- ArgList(ExecState* exec)
- : m_args(reinterpret_cast<JSValue*>(&exec[CallFrame::argumentOffset(0)]))
- , m_argCount(exec->argumentCount())
- {
- }
-
- ArgList(const MarkedArgumentBuffer& args)
- : m_args(reinterpret_cast<JSValue*>(args.m_buffer))
- , m_argCount(args.size())
- {
- }
-
- JSValue at(int i) const
- {
- if (i >= m_argCount)
- return jsUndefined();
- return m_args[-i];
- }
-
- bool isEmpty() const { return !m_argCount; }
- size_t size() const { return m_argCount; }
+ int m_size;
+ int m_capacity;
+ EncodedJSValue m_inlineBuffer[inlineCapacity];
+ EncodedJSValue* m_buffer;
+ ListSet* m_markSet;
+
+private:
+ // Prohibits new / delete, which would break GC.
+ void* operator new(size_t size)
+ {
+ return fastMalloc(size);
+ }
+ void operator delete(void* p)
+ {
+ fastFree(p);
+ }
+
+ void* operator new[](size_t);
+ void operator delete[](void*);
+
+ void* operator new(size_t, void*);
+ void operator delete(void*, size_t);
+};
+
+class ArgList {
+ friend class JIT;
+public:
+ ArgList()
+ : m_args(0)
+ , m_argCount(0)
+ {
+ }
+
+ ArgList(ExecState* exec)
+ : m_args(reinterpret_cast<JSValue*>(&exec[CallFrame::argumentOffset(0)]))
+ , m_argCount(exec->argumentCount())
+ {
+ }
+
+ ArgList(const MarkedArgumentBuffer& args)
+ : m_args(reinterpret_cast<JSValue*>(args.m_buffer))
+ , m_argCount(args.size())
+ {
+ }
+
+ JSValue at(int i) const
+ {
+ if (i >= m_argCount)
+ return jsUndefined();
+ return m_args[-i];
+ }
+
+ bool isEmpty() const { return !m_argCount; }
+ size_t size() const { return m_argCount; }
- JS_EXPORT_PRIVATE void getSlice(int startIndex, ArgList& result) const;
+ JS_EXPORT_PRIVATE void getSlice(int startIndex, ArgList& result) const;
- private:
- JSValue* m_args;
- int m_argCount;
- };
+private:
+ JSValue* m_args;
+ int m_argCount;
+};
} // namespace JSC
projects / apple / javascriptcore.git / blobdiff