1 //
2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 #ifndef _COMMON_INCLUDED_
8 #define _COMMON_INCLUDED_
9
10 #include <map>
11 #include <sstream>
12 #include <string>
13 #include <vector>
14 #include <limits>
15 #include <stdio.h>
16
17 #include "compiler/translator/PoolAlloc.h"
18 #include "compiler/translator/compilerdebug.h"
19 #include "common/angleutils.h"
20
21 struct TSourceLoc {
22 int first_file;
23 int first_line;
24 int last_file;
25 int last_line;
26 };
27
28 //
29 // Put POOL_ALLOCATOR_NEW_DELETE in base classes to make them use this scheme.
30 //
31 #define POOL_ALLOCATOR_NEW_DELETE() \
32 void* operator new(size_t s) { return GetGlobalPoolAllocator()->allocate(s); } \
33 void* operator new(size_t, void *_Where) { return (_Where); } \
34 void operator delete(void*) { } \
35 void operator delete(void *, void *) { } \
36 void* operator new[](size_t s) { return GetGlobalPoolAllocator()->allocate(s); } \
37 void* operator new[](size_t, void *_Where) { return (_Where); } \
38 void operator delete[](void*) { } \
39 void operator delete[](void *, void *) { }
40
41 //
42 // Pool version of string.
43 //
44 typedef pool_allocator<char> TStringAllocator;
45 typedef std::basic_string <char, std::char_traits<char>, TStringAllocator> TString;
46 typedef std::basic_ostringstream<char, std::char_traits<char>, TStringAllocator> TStringStream;
NewPoolTString(const char * s)47 inline TString* NewPoolTString(const char* s)
48 {
49 void* memory = GetGlobalPoolAllocator()->allocate(sizeof(TString));
50 return new(memory) TString(s);
51 }
52
53 //
54 // Persistent string memory. Should only be used for strings that survive
55 // across compiles.
56 //
57 #define TPersistString std::string
58 #define TPersistStringStream std::ostringstream
59
60 //
61 // Pool allocator versions of vectors, lists, and maps
62 //
63 template <class T> class TVector : public std::vector<T, pool_allocator<T> > {
64 public:
65 typedef typename std::vector<T, pool_allocator<T> >::size_type size_type;
TVector()66 TVector() : std::vector<T, pool_allocator<T> >() {}
TVector(const pool_allocator<T> & a)67 TVector(const pool_allocator<T>& a) : std::vector<T, pool_allocator<T> >(a) {}
TVector(size_type i)68 TVector(size_type i): std::vector<T, pool_allocator<T> >(i) {}
69 };
70
71 template <class K, class D, class CMP = std::less<K> >
72 class TMap : public std::map<K, D, CMP, pool_allocator<std::pair<const K, D> > > {
73 public:
74 typedef pool_allocator<std::pair<const K, D> > tAllocator;
75
TMap()76 TMap() : std::map<K, D, CMP, tAllocator>() {}
77 // use correct two-stage name lookup supported in gcc 3.4 and above
TMap(const tAllocator & a)78 TMap(const tAllocator& a) : std::map<K, D, CMP, tAllocator>(std::map<K, D, CMP, tAllocator>::key_compare(), a) {}
79 };
80
81 // Integer to TString conversion
82 template <typename T>
str(T i)83 inline TString str(T i)
84 {
85 ASSERT(std::numeric_limits<T>::is_integer);
86 char buffer[((8 * sizeof(T)) / 3) + 3];
87 const char *formatStr = std::numeric_limits<T>::is_signed ? "%d" : "%u";
88 snprintf(buffer, sizeof(buffer), formatStr, i);
89 return buffer;
90 }
91
92 #endif // _COMMON_INCLUDED_
93