gfx/angle/src/compiler/InfoSink.h@6474c204b198
gfx/angle/src/compiler/InfoSink.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
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 //
7 #ifndef _INFOSINK_INCLUDED_
8 #define _INFOSINK_INCLUDED_
10 #include <math.h>
11 #include "compiler/Common.h"
13 // Returns the fractional part of the given floating-point number.
14 inline float fractionalPart(float f) {
15 float intPart = 0.0f;
16 return modff(f, &intPart);
17 }
19 //
20 // TPrefixType is used to centralize how info log messages start.
21 // See below.
22 //
23 enum TPrefixType {
24 EPrefixNone,
25 EPrefixWarning,
26 EPrefixError,
27 EPrefixInternalError,
28 EPrefixUnimplemented,
29 EPrefixNote
30 };
32 //
33 // Encapsulate info logs for all objects that have them.
34 //
35 // The methods are a general set of tools for getting a variety of
36 // messages and types inserted into the log.
37 //
38 class TInfoSinkBase {
39 public:
40 TInfoSinkBase() {}
42 template <typename T>
43 TInfoSinkBase& operator<<(const T& t) {
44 TPersistStringStream stream;
45 stream << t;
46 sink.append(stream.str());
47 return *this;
48 }
49 // Override << operator for specific types. It is faster to append strings
50 // and characters directly to the sink.
51 TInfoSinkBase& operator<<(char c) {
52 sink.append(1, c);
53 return *this;
54 }
55 TInfoSinkBase& operator<<(const char* str) {
56 sink.append(str);
57 return *this;
58 }
59 TInfoSinkBase& operator<<(const TPersistString& str) {
60 sink.append(str);
61 return *this;
62 }
63 TInfoSinkBase& operator<<(const TString& str) {
64 sink.append(str.c_str());
65 return *this;
66 }
67 // Make sure floats are written with correct precision.
68 TInfoSinkBase& operator<<(float f) {
69 // Make sure that at least one decimal point is written. If a number
70 // does not have a fractional part, the default precision format does
71 // not write the decimal portion which gets interpreted as integer by
72 // the compiler.
73 TPersistStringStream stream;
74 if (fractionalPart(f) == 0.0f) {
75 stream.precision(1);
76 stream << std::showpoint << std::fixed << f;
77 } else {
78 stream.unsetf(std::ios::fixed);
79 stream.unsetf(std::ios::scientific);
80 stream.precision(8);
81 stream << f;
82 }
83 sink.append(stream.str());
84 return *this;
85 }
86 // Write boolean values as their names instead of integral value.
87 TInfoSinkBase& operator<<(bool b) {
88 const char* str = b ? "true" : "false";
89 sink.append(str);
90 return *this;
91 }
93 void erase() { sink.clear(); }
94 int size() { return static_cast<int>(sink.size()); }
96 const TPersistString& str() const { return sink; }
97 const char* c_str() const { return sink.c_str(); }
99 void prefix(TPrefixType p);
100 void location(int file, int line);
101 void location(const TSourceLoc& loc);
102 void message(TPrefixType p, const TSourceLoc& loc, const char* m);
104 private:
105 TPersistString sink;
106 };
108 class TInfoSink {
109 public:
110 TInfoSinkBase info;
111 TInfoSinkBase debug;
112 TInfoSinkBase obj;
113 };
115 #endif // _INFOSINK_INCLUDED_
