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1 module dmd.OutBuffer;
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2
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3 import std.stdarg;
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4 import std.contracts;
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5
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6 import core.stdc.stdlib;
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7 import core.stdc.string;
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8
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2
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9 import dmd.Memory;
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10
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0
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11 class OutBuffer
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12 {
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13 ubyte* data;
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14 uint offset;
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15 uint size;
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16
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17 this()
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18 {
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19 // do nothing
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20 }
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21
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22 final void* extractData()
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23 {
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24 void* p = cast(void*)data;
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25
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26 data = null;
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27 offset = 0;
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28 size = 0;
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29
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30 return p;
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31 }
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32
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33 void mark()
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34 {
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35 assert(false);
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36 }
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37
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38 final void reserve(uint nbytes)
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39 {
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40 //printf("OutBuffer::reserve: size = %d, offset = %d, nbytes = %d\n", size, offset, nbytes);
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41 if (size - offset < nbytes)
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42 {
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43 size = (offset + nbytes) * 2;
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2
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44 data = cast(ubyte*)GC.realloc(data, size);
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0
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45 }
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46 }
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47
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48 final void setsize(uint size)
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49 {
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50 assert(false);
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51 }
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52
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53 final void reset()
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54 {
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55 offset = 0;
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56 }
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57
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58 final void write(const(void)* data, uint nbytes)
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59 {
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60 reserve(nbytes);
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61 memcpy(this.data + offset, data, nbytes);
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62 offset += nbytes;
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63 }
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64
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65 final void writebstring(ubyte* string_)
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66 {
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67 assert(false);
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68 }
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69
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70 final void writestring(const(char)[] string_)
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71 {
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72 write(string_.ptr , string_.length);
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73 }
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74
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75 final void writedstring(const(char)* string_)
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76 {
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77 assert(false);
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78 }
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79
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80 final void writedstring(const(wchar)* string_)
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81 {
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82 assert(false);
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83 }
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84
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85 final void prependstring(const(char)[] string_)
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86 {
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87 uint len = string_.length;
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88 reserve(len);
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89 memmove(data + len, data, offset);
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90 memcpy(data, string_.ptr, len);
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91 offset += len;
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92 }
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93
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94 final void writenl() // write newline
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95 {
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96 assert(false);
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97 }
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98
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99 final void writeByte(uint b)
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100 {
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101 reserve(1);
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102 this.data[offset] = cast(ubyte)b;
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103 offset++;
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104 }
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105
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106 final void writebyte(uint b) { writeByte(b); }
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107
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108 final void writeUTF8(uint b)
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109 {
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110 reserve(6);
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111 if (b <= 0x7F)
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112 {
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113 this.data[offset] = cast(ubyte)b;
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114 offset++;
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115 }
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116 else if (b <= 0x7FF)
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117 {
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118 this.data[offset + 0] = cast(ubyte)((b >> 6) | 0xC0);
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119 this.data[offset + 1] = cast(ubyte)((b & 0x3F) | 0x80);
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120 offset += 2;
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121 }
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122 else if (b <= 0xFFFF)
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123 {
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124 this.data[offset + 0] = cast(ubyte)((b >> 12) | 0xE0);
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125 this.data[offset + 1] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80);
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126 this.data[offset + 2] = cast(ubyte)((b & 0x3F) | 0x80);
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127 offset += 3;
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128 }
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129 else if (b <= 0x1FFFFF)
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130 {
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131 this.data[offset + 0] = cast(ubyte)((b >> 18) | 0xF0);
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132 this.data[offset + 1] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80);
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133 this.data[offset + 2] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80);
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134 this.data[offset + 3] = cast(ubyte)((b & 0x3F) | 0x80);
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135 offset += 4;
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136 }
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137 else if (b <= 0x3FFFFFF)
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138 {
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139 this.data[offset + 0] = cast(ubyte)((b >> 24) | 0xF8);
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140 this.data[offset + 1] = cast(ubyte)(((b >> 18) & 0x3F) | 0x80);
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141 this.data[offset + 2] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80);
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142 this.data[offset + 3] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80);
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143 this.data[offset + 4] = cast(ubyte)((b & 0x3F) | 0x80);
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144 offset += 5;
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145 }
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146 else if (b <= 0x7FFFFFFF)
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147 {
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148 this.data[offset + 0] = cast(ubyte)((b >> 30) | 0xFC);
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149 this.data[offset + 1] = cast(ubyte)(((b >> 24) & 0x3F) | 0x80);
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150 this.data[offset + 2] = cast(ubyte)(((b >> 18) & 0x3F) | 0x80);
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151 this.data[offset + 3] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80);
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152 this.data[offset + 4] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80);
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153 this.data[offset + 5] = cast(ubyte)((b & 0x3F) | 0x80);
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154 offset += 6;
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155 }
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156 else
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157 assert(0);
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158 }
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159
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160 final void writedchar(uint b)
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161 {
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162 assert(false);
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163 }
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164
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165 final void prependbyte(uint b)
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166 {
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167 assert(false);
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168 }
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169
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170 final void writeword(uint w)
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171 {
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172 reserve(2);
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173 *cast(ushort*)(this.data + offset) = cast(ushort)w;
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174 offset += 2;
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175 }
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176
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177 final void writeUTF16(uint w)
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178 {
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179 reserve(4);
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180 if (w <= 0xFFFF)
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181 {
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182 *cast(ushort*)(this.data + offset) = cast(ushort)w;
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183 offset += 2;
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184 }
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185 else if (w <= 0x10FFFF)
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186 {
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187 *cast(ushort*)(this.data + offset) = cast(ushort)((w >> 10) + 0xD7C0);
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188 *cast(ushort*)(this.data + offset + 2) = cast(ushort)((w & 0x3FF) | 0xDC00);
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189 offset += 4;
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190 }
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191 else
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192 assert(0);
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193 }
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194
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195 final void write4(uint w)
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196 {
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197 assert(false);
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198 }
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199
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200 final void write(OutBuffer buf)
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201 {
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202 if (buf)
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203 {
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204 reserve(buf.offset);
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205 memcpy(data + offset, buf.data, buf.offset);
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206 offset += buf.offset;
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207 }
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208 }
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209
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210 final void write(Object obj)
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211 {
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212 assert(false);
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213 }
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214
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215 final void fill0(uint nbytes)
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216 {
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217 reserve(nbytes);
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218 memset(data + offset, 0, nbytes);
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219 offset += nbytes;
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220 }
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221
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222 final void align_(uint size)
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223 {
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224 assert(false);
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225 }
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226
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227 void vprintf(const(char)* format, va_list args)
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228 {
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229 assert(false);
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230 }
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231
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232 void printf(T...)(string format, T t)
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233 {
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234 string s = std.string.format(format, t);
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235 writestring(s);
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236 }
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237
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238 version (M_UNICODE) {
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239 /// void vprintf(const uint short *format, va_list args);
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240 /// void printf(const uint short *format, ...);
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241 }
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242 final void bracket(char left, char right)
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243 {
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244 assert(false);
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245 }
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246
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247 final uint bracket(uint i, const(char)* left, uint j, const(char)* right)
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248 {
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249 assert(false);
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250 }
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251
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252 final void spread(uint offset, uint nbytes)
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253 {
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254 assert(false);
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255 }
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256
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257 final uint insert(uint offset, const(void)* data, uint nbytes)
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258 {
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259 assert(false);
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260 }
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261
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262 final void remove(uint offset, uint nbytes)
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263 {
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264 assert(false);
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265 }
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266
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267 string toChars()
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268 {
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269 return getString().idup;
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270 }
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271
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272 final string extractString()
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273 {
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274 char[] s = getString();
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275 data = null;
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276 offset = 0;
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277 size = 0;
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278
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279 return assumeUnique(s);
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280 }
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281
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282 final char[] getString()
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283 {
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284 char* s = cast(char*)data;
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285 return s[0..offset];
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286 }
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287 } |
