kc3-lang/angle/src/compiler/InfoSink.h

Branch : - branch - main - tag -

• Show log

  Commit

• Author : Jamie Madill
  Date : 2013-07-08 13:30:19
  Hash : 075edd84
  Message : Refactor location tracking. R=kbr@chromium.org Review URL: https://codereview.appspot.com/9078046 git-svn-id: https://angleproject.googlecode.com/svn/trunk@2202 736b8ea6-26fd-11df-bfd4-992fa37f6226 TRAC #23333 Authored-by: alokp@chromium.org Signed-off-by: Shannon Woods Signed-off-by Nicolas Capens Merged-by: Jamie Madill

• src/compiler/InfoSink.h

• //
  // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #ifndef _INFOSINK_INCLUDED_
  #define _INFOSINK_INCLUDED_
  
  #include <math.h>
  #include "compiler/Common.h"
  
  // Returns the fractional part of the given floating-point number.
  inline float fractionalPart(float f) {
    float intPart = 0.0f;
    return modff(f, &intPart);
  }
  
  //
  // TPrefixType is used to centralize how info log messages start.
  // See below.
  //
  enum TPrefixType {
      EPrefixNone,
      EPrefixWarning,
      EPrefixError,
      EPrefixInternalError,
      EPrefixUnimplemented,
      EPrefixNote
  };
  
  //
  // Encapsulate info logs for all objects that have them.
  //
  // The methods are a general set of tools for getting a variety of
  // messages and types inserted into the log.
  //
  class TInfoSinkBase {
  public:
      TInfoSinkBase() {}
  
      template <typename T>
      TInfoSinkBase& operator<<(const T& t) {
          TPersistStringStream stream;
          stream << t;
          sink.append(stream.str());
          return *this;
      }
      // Override << operator for specific types. It is faster to append strings
      // and characters directly to the sink.
      TInfoSinkBase& operator<<(char c) {
          sink.append(1, c);
          return *this;
      }
      TInfoSinkBase& operator<<(const char* str) {
          sink.append(str);
          return *this;
      }
      TInfoSinkBase& operator<<(const TPersistString& str) {
          sink.append(str);
          return *this;
      }
      TInfoSinkBase& operator<<(const TString& str) {
          sink.append(str.c_str());
          return *this;
      }
      // Make sure floats are written with correct precision.
      TInfoSinkBase& operator<<(float f) {
          // Make sure that at least one decimal point is written. If a number
          // does not have a fractional part, the default precision format does
          // not write the decimal portion which gets interpreted as integer by
          // the compiler.
          TPersistStringStream stream;
          if (fractionalPart(f) == 0.0f) {
              stream.precision(1);
              stream << std::showpoint << std::fixed << f;
          } else {
              stream.unsetf(std::ios::fixed);
              stream.unsetf(std::ios::scientific);
              stream.precision(8);
              stream << f;
          }
          sink.append(stream.str());
          return *this;
      }
      // Write boolean values as their names instead of integral value.
      TInfoSinkBase& operator<<(bool b) {
          const char* str = b ? "true" : "false";
          sink.append(str);
          return *this;
      }
  
      void erase() { sink.clear(); }
      int size() { return static_cast<int>(sink.size()); }
  
      const TPersistString& str() const { return sink; }
      const char* c_str() const { return sink.c_str(); }
  
      void prefix(TPrefixType p);
      void location(int file, int line);
      void location(const TSourceLoc& loc);
      void message(TPrefixType p, const TSourceLoc& loc, const char* m);
  
  private:
      TPersistString sink;
  };
  
  class TInfoSink {
  public:
      TInfoSinkBase info;
      TInfoSinkBase debug;
      TInfoSinkBase obj;
  };
  
  #endif // _INFOSINK_INCLUDED_