gcc/d/dmd/root/outbuffer.h

   1
   2 /* Copyright (C) 1999-2021 by The D Language Foundation, All Rights Reserved
   3  * written by Walter Bright
   4  * http://www.digitalmars.com
   5  * Distributed under the Boost Software License, Version 1.0.
   6  * http://www.boost.org/LICENSE_1_0.txt
   7  * https://github.com/dlang/dmd/blob/master/src/dmd/root/outbuffer.h
   8  */
   9
  10 #pragma once
  11
  12 #include "dsystem.h"
  13 #include "dcompat.h"
  14 #include "rmem.h"
  15
  16 class RootObject;
  17
  18 struct OutBuffer
  19 {
  20     // IMPORTANT: PLEASE KEEP STATE AND DESTRUCTOR IN SYNC WITH DEFINITION IN ./outbuffer.d.
  21 private:
  22     DArray<unsigned char> data;
  23     d_size_t offset;
  24     bool notlinehead;
  25     void* fileMapping;  // pointer to a file mapping object not used on the C++ side
  26 public:
  27     bool doindent;
  28     bool spaces;
  29     int level;
  30
  31     OutBuffer()
  32     {
  33         data = DArray<unsigned char>();
  34         offset = 0;
  35
  36         doindent = 0;
  37         level = 0;
  38         notlinehead = 0;
  39         fileMapping = 0;
  40     }
  41     ~OutBuffer()
  42     {
  43         mem.xfree(data.ptr);
  44     }
  45     d_size_t length() const { return offset; }
  46     char *extractData();
  47     void destroy();
  48
  49     void reserve(d_size_t nbytes);
  50     void setsize(d_size_t size);
  51     void reset();
  52     void write(const void *data, size_t nbytes);
  53     void writestring(const char *string);
  54     void prependstring(const char *string);
  55     void writenl();                     // write newline
  56     void writeByte(unsigned b);
  57     void writeUTF8(unsigned b);
  58     void prependbyte(unsigned b);
  59     void writewchar(unsigned w);
  60     void writeword(unsigned w);
  61     void writeUTF16(unsigned w);
  62     void write4(unsigned w);
  63     void write(const OutBuffer *buf);
  64     void write(RootObject *obj);
  65     void fill0(d_size_t nbytes);
  66     void vprintf(const char *format, va_list args);
  67     void printf(const char *format, ...);
  68     void bracket(char left, char right);
  69     d_size_t bracket(d_size_t i, const char *left, d_size_t j, const char *right);
  70     void spread(d_size_t offset, d_size_t nbytes);
  71     d_size_t insert(d_size_t offset, const void *data, d_size_t nbytes);
  72     void remove(d_size_t offset, d_size_t nbytes);
  73     // Append terminating null if necessary and get view of internal buffer
  74     char *peekChars();
  75     // Append terminating null if necessary and take ownership of data
  76     char *extractChars();
  77 };