-# Copyright 2011 the V8 project authors. All rights reserved.
+# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
fast-dtoa.cc
fixed-dtoa.cc
handles.cc
- hashmap.cc
heap-profiler.cc
heap.cc
hydrogen.cc
dtoa.cc
fast-dtoa.cc
fixed-dtoa.cc
- hashmap.cc
preparse-data.cc
preparser.cc
preparser-api.cc
void ObjectLiteral::CalculateEmitStore() {
- HashMap properties(&IsEqualString);
- HashMap elements(&IsEqualNumber);
+ ZoneHashMap properties(&IsEqualString);
+ ZoneHashMap elements(&IsEqualNumber);
for (int i = this->properties()->length() - 1; i >= 0; i--) {
ObjectLiteral::Property* property = this->properties()->at(i);
Literal* literal = property->key();
}
uint32_t hash;
- HashMap* table;
+ ZoneHashMap* table;
void* key;
Factory* factory = Isolate::Current()->factory();
if (handle->IsSymbol()) {
};
class ExtensionStates {
- public:
+ public:
ExtensionStates();
ExtensionTraversalState get_state(RegisteredExtension* extension);
void set_state(RegisteredExtension* extension,
ExtensionTraversalState state);
- private:
- Allocator allocator_;
+ private:
HashMap map_;
DISALLOW_COPY_AND_ASSIGN(ExtensionStates);
};
}
Genesis::ExtensionStates::ExtensionStates()
- : allocator_(),
- map_(MatchRegisteredExtensions, &allocator_, 8)
- {}
+ : map_(MatchRegisteredExtensions, 8) { }
Genesis::ExtensionTraversalState Genesis::ExtensionStates::get_state(
RegisteredExtension* extension) {
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
namespace v8 {
namespace internal {
-class HashMap;
-
// The compilation cache consists of several generational sub-caches which uses
// this class as a base class. A sub-cache contains a compilation cache tables
// for each generation of the sub-cache. Since the same source code string has
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
class CodeMap;
class CpuProfile;
class CpuProfilesCollection;
-class HashMap;
class ProfileGenerator;
class TokenEnumerator;
+++ /dev/null
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "../include/v8stdint.h"
-#include "globals.h"
-#include "checks.h"
-#include "utils.h"
-#include "allocation.h"
-
-#include "hashmap.h"
-
-namespace v8 {
-namespace internal {
-
-Allocator* HashMap::DefaultAllocator = ::new Allocator();
-
-
-HashMap::HashMap(MatchFun match,
- Allocator* allocator,
- uint32_t initial_capacity) {
- allocator_ = allocator;
- match_ = match;
- Initialize(initial_capacity);
-}
-
-
-HashMap::~HashMap() {
- if (allocator_) {
- allocator_->Delete(map_);
- }
-}
-
-
-HashMap::Entry* HashMap::Lookup(void* key, uint32_t hash, bool insert) {
- // Find a matching entry.
- Entry* p = Probe(key, hash);
- if (p->key != NULL) {
- return p;
- }
-
- // No entry found; insert one if necessary.
- if (insert) {
- p->key = key;
- p->value = NULL;
- p->hash = hash;
- occupancy_++;
-
- // Grow the map if we reached >= 80% occupancy.
- if (occupancy_ + occupancy_/4 >= capacity_) {
- Resize();
- p = Probe(key, hash);
- }
-
- return p;
- }
-
- // No entry found and none inserted.
- return NULL;
-}
-
-
-void HashMap::Remove(void* key, uint32_t hash) {
- // Lookup the entry for the key to remove.
- Entry* p = Probe(key, hash);
- if (p->key == NULL) {
- // Key not found nothing to remove.
- return;
- }
-
- // To remove an entry we need to ensure that it does not create an empty
- // entry that will cause the search for another entry to stop too soon. If all
- // the entries between the entry to remove and the next empty slot have their
- // initial position inside this interval, clearing the entry to remove will
- // not break the search. If, while searching for the next empty entry, an
- // entry is encountered which does not have its initial position between the
- // entry to remove and the position looked at, then this entry can be moved to
- // the place of the entry to remove without breaking the search for it. The
- // entry made vacant by this move is now the entry to remove and the process
- // starts over.
- // Algorithm from http://en.wikipedia.org/wiki/Open_addressing.
-
- // This guarantees loop termination as there is at least one empty entry so
- // eventually the removed entry will have an empty entry after it.
- ASSERT(occupancy_ < capacity_);
-
- // p is the candidate entry to clear. q is used to scan forwards.
- Entry* q = p; // Start at the entry to remove.
- while (true) {
- // Move q to the next entry.
- q = q + 1;
- if (q == map_end()) {
- q = map_;
- }
-
- // All entries between p and q have their initial position between p and q
- // and the entry p can be cleared without breaking the search for these
- // entries.
- if (q->key == NULL) {
- break;
- }
-
- // Find the initial position for the entry at position q.
- Entry* r = map_ + (q->hash & (capacity_ - 1));
-
- // If the entry at position q has its initial position outside the range
- // between p and q it can be moved forward to position p and will still be
- // found. There is now a new candidate entry for clearing.
- if ((q > p && (r <= p || r > q)) ||
- (q < p && (r <= p && r > q))) {
- *p = *q;
- p = q;
- }
- }
-
- // Clear the entry which is allowed to en emptied.
- p->key = NULL;
- occupancy_--;
-}
-
-
-void HashMap::Clear() {
- // Mark all entries as empty.
- const Entry* end = map_end();
- for (Entry* p = map_; p < end; p++) {
- p->key = NULL;
- }
- occupancy_ = 0;
-}
-
-
-HashMap::Entry* HashMap::Start() const {
- return Next(map_ - 1);
-}
-
-
-HashMap::Entry* HashMap::Next(Entry* p) const {
- const Entry* end = map_end();
- ASSERT(map_ - 1 <= p && p < end);
- for (p++; p < end; p++) {
- if (p->key != NULL) {
- return p;
- }
- }
- return NULL;
-}
-
-
-HashMap::Entry* HashMap::Probe(void* key, uint32_t hash) {
- ASSERT(key != NULL);
-
- ASSERT(IsPowerOf2(capacity_));
- Entry* p = map_ + (hash & (capacity_ - 1));
- const Entry* end = map_end();
- ASSERT(map_ <= p && p < end);
-
- ASSERT(occupancy_ < capacity_); // Guarantees loop termination.
- while (p->key != NULL && (hash != p->hash || !match_(key, p->key))) {
- p++;
- if (p >= end) {
- p = map_;
- }
- }
-
- return p;
-}
-
-
-void HashMap::Initialize(uint32_t capacity) {
- ASSERT(IsPowerOf2(capacity));
- map_ = reinterpret_cast<Entry*>(allocator_->New(capacity * sizeof(Entry)));
- if (map_ == NULL) {
- v8::internal::FatalProcessOutOfMemory("HashMap::Initialize");
- return;
- }
- capacity_ = capacity;
- Clear();
-}
-
-
-void HashMap::Resize() {
- Entry* map = map_;
- uint32_t n = occupancy_;
-
- // Allocate larger map.
- Initialize(capacity_ * 2);
-
- // Rehash all current entries.
- for (Entry* p = map; n > 0; p++) {
- if (p->key != NULL) {
- Lookup(p->key, p->hash, true)->value = p->value;
- n--;
- }
- }
-
- // Delete old map.
- allocator_->Delete(map);
-}
-
-
-} } // namespace v8::internal
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
#define V8_HASHMAP_H_
#include "allocation.h"
+#include "checks.h"
+#include "utils.h"
namespace v8 {
namespace internal {
-
-// Allocator defines the memory allocator interface
-// used by HashMap and implements a default allocator.
-class Allocator BASE_EMBEDDED {
- public:
- virtual ~Allocator() {}
- virtual void* New(size_t size) { return Malloced::New(size); }
- virtual void Delete(void* p) { Malloced::Delete(p); }
-};
-
-
-class HashMap {
+template<class AllocationPolicy>
+class TemplateHashMap {
public:
- static Allocator* DefaultAllocator;
-
typedef bool (*MatchFun) (void* key1, void* key2);
// initial_capacity is the size of the initial hash map;
// it must be a power of 2 (and thus must not be 0).
- explicit HashMap(MatchFun match,
- Allocator* allocator = DefaultAllocator,
- uint32_t initial_capacity = 8);
+ TemplateHashMap(MatchFun match, uint32_t initial_capacity = 8);
- ~HashMap();
+ ~TemplateHashMap();
// HashMap entries are (key, value, hash) triplets.
// Some clients may not need to use the value slot
Entry* Next(Entry* p) const;
private:
- Allocator* allocator_;
MatchFun match_;
Entry* map_;
uint32_t capacity_;
void Resize();
};
+typedef TemplateHashMap<FreeStoreAllocationPolicy> HashMap;
+
+template<class P>
+TemplateHashMap<P>::TemplateHashMap(MatchFun match,
+ uint32_t initial_capacity) {
+ match_ = match;
+ Initialize(initial_capacity);
+}
+
+
+template<class P>
+TemplateHashMap<P>::~TemplateHashMap() {
+ P::Delete(map_);
+}
+
+
+template<class P>
+struct TemplateHashMap<P>::Entry* TemplateHashMap<P>::Lookup(
+ void* key, uint32_t hash, bool insert) {
+ // Find a matching entry.
+ Entry* p = Probe(key, hash);
+ if (p->key != NULL) {
+ return p;
+ }
+
+ // No entry found; insert one if necessary.
+ if (insert) {
+ p->key = key;
+ p->value = NULL;
+ p->hash = hash;
+ occupancy_++;
+
+ // Grow the map if we reached >= 80% occupancy.
+ if (occupancy_ + occupancy_/4 >= capacity_) {
+ Resize();
+ p = Probe(key, hash);
+ }
+
+ return p;
+ }
+
+ // No entry found and none inserted.
+ return NULL;
+}
+
+
+template<class P>
+void TemplateHashMap<P>::Remove(void* key, uint32_t hash) {
+ // Lookup the entry for the key to remove.
+ Entry* p = Probe(key, hash);
+ if (p->key == NULL) {
+ // Key not found nothing to remove.
+ return;
+ }
+
+ // To remove an entry we need to ensure that it does not create an empty
+ // entry that will cause the search for another entry to stop too soon. If all
+ // the entries between the entry to remove and the next empty slot have their
+ // initial position inside this interval, clearing the entry to remove will
+ // not break the search. If, while searching for the next empty entry, an
+ // entry is encountered which does not have its initial position between the
+ // entry to remove and the position looked at, then this entry can be moved to
+ // the place of the entry to remove without breaking the search for it. The
+ // entry made vacant by this move is now the entry to remove and the process
+ // starts over.
+ // Algorithm from http://en.wikipedia.org/wiki/Open_addressing.
+
+ // This guarantees loop termination as there is at least one empty entry so
+ // eventually the removed entry will have an empty entry after it.
+ ASSERT(occupancy_ < capacity_);
+
+ // p is the candidate entry to clear. q is used to scan forwards.
+ Entry* q = p; // Start at the entry to remove.
+ while (true) {
+ // Move q to the next entry.
+ q = q + 1;
+ if (q == map_end()) {
+ q = map_;
+ }
+
+ // All entries between p and q have their initial position between p and q
+ // and the entry p can be cleared without breaking the search for these
+ // entries.
+ if (q->key == NULL) {
+ break;
+ }
+
+ // Find the initial position for the entry at position q.
+ Entry* r = map_ + (q->hash & (capacity_ - 1));
+
+ // If the entry at position q has its initial position outside the range
+ // between p and q it can be moved forward to position p and will still be
+ // found. There is now a new candidate entry for clearing.
+ if ((q > p && (r <= p || r > q)) ||
+ (q < p && (r <= p && r > q))) {
+ *p = *q;
+ p = q;
+ }
+ }
+
+ // Clear the entry which is allowed to en emptied.
+ p->key = NULL;
+ occupancy_--;
+}
+
+
+template<class P>
+void TemplateHashMap<P>::Clear() {
+ // Mark all entries as empty.
+ const Entry* end = map_end();
+ for (Entry* p = map_; p < end; p++) {
+ p->key = NULL;
+ }
+ occupancy_ = 0;
+}
+
+
+template<class P>
+struct TemplateHashMap<P>::Entry* TemplateHashMap<P>::Start() const {
+ return Next(map_ - 1);
+}
+
+
+template<class P>
+struct TemplateHashMap<P>::Entry* TemplateHashMap<P>::Next(Entry* p) const {
+ const Entry* end = map_end();
+ ASSERT(map_ - 1 <= p && p < end);
+ for (p++; p < end; p++) {
+ if (p->key != NULL) {
+ return p;
+ }
+ }
+ return NULL;
+}
+
+
+template<class P>
+struct TemplateHashMap<P>::Entry* TemplateHashMap<P>::Probe(void* key,
+ uint32_t hash) {
+ ASSERT(key != NULL);
+
+ ASSERT(IsPowerOf2(capacity_));
+ Entry* p = map_ + (hash & (capacity_ - 1));
+ const Entry* end = map_end();
+ ASSERT(map_ <= p && p < end);
+
+ ASSERT(occupancy_ < capacity_); // Guarantees loop termination.
+ while (p->key != NULL && (hash != p->hash || !match_(key, p->key))) {
+ p++;
+ if (p >= end) {
+ p = map_;
+ }
+ }
+
+ return p;
+}
+
+
+template<class P>
+void TemplateHashMap<P>::Initialize(uint32_t capacity) {
+ ASSERT(IsPowerOf2(capacity));
+ map_ = reinterpret_cast<Entry*>(P::New(capacity * sizeof(Entry)));
+ if (map_ == NULL) {
+ v8::internal::FatalProcessOutOfMemory("HashMap::Initialize");
+ return;
+ }
+ capacity_ = capacity;
+ Clear();
+}
+
+
+template<class P>
+void TemplateHashMap<P>::Resize() {
+ Entry* map = map_;
+ uint32_t n = occupancy_;
+
+ // Allocate larger map.
+ Initialize(capacity_ * 2);
+
+ // Rehash all current entries.
+ for (Entry* p = map; n > 0; p++) {
+ if (p->key != NULL) {
+ Lookup(p->key, p->hash, true)->value = p->value;
+ n--;
+ }
+ }
+
+ // Delete old map.
+ P::Delete(map);
+}
} } // namespace v8::internal
#include "frames.h"
#include "global-handles.h"
#include "handles.h"
+#include "hashmap.h"
#include "heap.h"
#include "regexp-stack.h"
#include "runtime-profiler.h"
Address try_catch_handler_address_;
};
-#if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_MIPS)
-
-#define ISOLATE_PLATFORM_INIT_LIST(V) \
- /* VirtualFrame::SpilledScope state */ \
- V(bool, is_virtual_frame_in_spilled_scope, false) \
- /* CodeGenerator::EmitNamedStore state */ \
- V(int, inlined_write_barrier_size, -1)
-
-#if !defined(__arm__) && !defined(__mips__)
-class HashMap;
-#endif
-
-#else
-
-#define ISOLATE_PLATFORM_INIT_LIST(V)
-
-#endif
#ifdef ENABLE_DEBUGGER_SUPPORT
V(uint64_t, enabled_cpu_features, 0) \
V(CpuProfiler*, cpu_profiler, NULL) \
V(HeapProfiler*, heap_profiler, NULL) \
- ISOLATE_PLATFORM_INIT_LIST(V) \
ISOLATE_DEBUGGER_INIT_LIST(V)
class Isolate {
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// tick profiler requires code events, so --prof implies --log-code.
// Forward declarations.
-class HashMap;
class LogMessageBuilder;
class Profiler;
class Semaphore;
DescriptorArray* Map::instance_descriptors() {
Object* object = READ_FIELD(this, kInstanceDescriptorsOrBitField3Offset);
if (object->IsSmi()) {
- return HEAP->empty_descriptor_array();
+ return GetHeap()->empty_descriptor_array();
} else {
return DescriptorArray::cast(object);
}
bool SharedFunctionInfo::IsInobjectSlackTrackingInProgress() {
- return initial_map() != HEAP->undefined_value();
+ return initial_map() != GetHeap()->undefined_value();
}
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
#ifndef V8_PREPARSER_H
#define V8_PREPARSER_H
+#include "hashmap.h"
#include "token.h"
#include "scanner.h"
namespace v8 {
namespace internal {
-// ----------------------------------------------------------------------------
-// A Zone allocator for use with LocalsMap.
-
-// TODO(isolates): It is probably worth it to change the Allocator class to
-// take a pointer to an isolate.
-class ZoneAllocator: public Allocator {
- public:
- /* nothing to do */
- virtual ~ZoneAllocator() {}
-
- virtual void* New(size_t size) { return ZONE->New(static_cast<int>(size)); }
-
- /* ignored - Zone is freed in one fell swoop */
- virtual void Delete(void* p) {}
-};
-
-
-static ZoneAllocator* LocalsMapAllocator = ::new ZoneAllocator();
-
-
// ----------------------------------------------------------------------------
// Implementation of LocalsMap
//
}
-VariableMap::VariableMap() : HashMap(Match, LocalsMapAllocator, 8) {}
+VariableMap::VariableMap() : ZoneHashMap(Match, 8) {}
VariableMap::~VariableMap() {}
bool is_valid_lhs,
Variable::Kind kind,
InitializationFlag initialization_flag) {
- HashMap::Entry* p = HashMap::Lookup(name.location(), name->Hash(), true);
+ Entry* p = ZoneHashMap::Lookup(name.location(), name->Hash(), true);
if (p->value == NULL) {
// The variable has not been declared yet -> insert it.
ASSERT(p->key == name.location());
Variable* VariableMap::Lookup(Handle<String> name) {
- HashMap::Entry* p = HashMap::Lookup(name.location(), name->Hash(), false);
+ Entry* p = ZoneHashMap::Lookup(name.location(), name->Hash(), false);
if (p != NULL) {
ASSERT(*reinterpret_cast<String**>(p->key) == *name);
ASSERT(p->value != NULL);
#define V8_SCOPES_H_
#include "ast.h"
-#include "hashmap.h"
+#include "zone.h"
namespace v8 {
namespace internal {
// A hash map to support fast variable declaration and lookup.
-class VariableMap: public HashMap {
+class VariableMap: public ZoneHashMap {
public:
VariableMap();
#include "allocation.h"
#include "checks.h"
+#include "hashmap.h"
#include "globals.h"
#include "list.h"
#include "splay-tree.h"
};
+typedef TemplateHashMap<ZoneListAllocationPolicy> ZoneHashMap;
+
} } // namespace v8::internal
#endif // V8_ZONE_H_
'../../src/handles-inl.h',
'../../src/handles.cc',
'../../src/handles.h',
- '../../src/hashmap.cc',
'../../src/hashmap.h',
'../../src/heap-inl.h',
'../../src/heap.cc',
'../../src/fixed-dtoa.cc',
'../../src/fixed-dtoa.h',
'../../src/globals.h',
- '../../src/hashmap.cc',
'../../src/hashmap.h',
'../../src/list-inl.h',
'../../src/list.h',
projects / platform / upstream / v8.git / commitdiff