The Tor Browser / file comparison
comparison: js/src/jit/CompilerRoot.h
js/src/jit/CompilerRoot.h
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:daf42ff7f804 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef jit_CompilerRoot_h | |
| 8 #define jit_CompilerRoot_h | |
| 9 | |
| 10 #ifdef JS_ION | |
| 11 | |
| 12 #include "jscntxt.h" | |
| 13 | |
| 14 #include "jit/Ion.h" | |
| 15 #include "jit/IonAllocPolicy.h" | |
| 16 #include "js/RootingAPI.h" | |
| 17 | |
| 18 namespace js { | |
| 19 namespace jit { | |
| 20 | |
| 21 // Roots a read-only GCThing for the lifetime of a single compilation. | |
| 22 // Each root is maintained in a linked list that is walked over during tracing. | |
| 23 // The CompilerRoot must be heap-allocated and may not go out of scope. | |
| 24 template <typename T> | |
| 25 class CompilerRoot : public CompilerRootNode | |
| 26 { | |
| 27 public: | |
| 28 CompilerRoot(T ptr) | |
| 29 : CompilerRootNode(nullptr) | |
| 30 { | |
| 31 if (ptr) { | |
| 32 JS_ASSERT(!GetIonContext()->runtime->isInsideNursery(ptr)); | |
| 33 setRoot(ptr); | |
| 34 } | |
| 35 } | |
| 36 | |
| 37 public: | |
| 38 // Sets the pointer and inserts into root list. The pointer becomes read-only. | |
| 39 void setRoot(T root) { | |
| 40 CompilerRootNode *&rootList = GetIonContext()->temp->rootList(); | |
| 41 | |
| 42 JS_ASSERT(!ptr_); | |
| 43 ptr_ = root; | |
| 44 next = rootList; | |
| 45 rootList = this; | |
| 46 } | |
| 47 | |
| 48 public: | |
| 49 operator T () const { return static_cast<T>(ptr_); } | |
| 50 T operator ->() const { return static_cast<T>(ptr_); } | |
| 51 | |
| 52 private: | |
| 53 CompilerRoot() MOZ_DELETE; | |
| 54 CompilerRoot(const CompilerRoot<T> &) MOZ_DELETE; | |
| 55 CompilerRoot<T> &operator =(const CompilerRoot<T> &) MOZ_DELETE; | |
| 56 }; | |
| 57 | |
| 58 typedef CompilerRoot<JSObject*> CompilerRootObject; | |
| 59 typedef CompilerRoot<JSFunction*> CompilerRootFunction; | |
| 60 typedef CompilerRoot<JSScript*> CompilerRootScript; | |
| 61 typedef CompilerRoot<PropertyName*> CompilerRootPropertyName; | |
| 62 typedef CompilerRoot<Shape*> CompilerRootShape; | |
| 63 typedef CompilerRoot<Value> CompilerRootValue; | |
| 64 | |
| 65 } // namespace jit | |
| 66 } // namespace js | |
| 67 | |
| 68 #endif // JS_ION | |
| 69 | |
| 70 #endif /* jit_CompilerRoot_h */ |
