Mercurial > projects > ddmd
view dmd/OutBuffer.d @ 0:10317f0c89a5
Initial commit
author | korDen |
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date | Sat, 24 Oct 2009 08:42:06 +0400 |
parents | |
children | 7427ded8caf7 |
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module dmd.OutBuffer; import std.stdarg; import std.contracts; import core.stdc.stdlib; import core.stdc.string; class OutBuffer { ubyte* data; uint offset; uint size; this() { // do nothing } final void* extractData() { void* p = cast(void*)data; data = null; offset = 0; size = 0; return p; } void mark() { assert(false); } final void reserve(uint nbytes) { //printf("OutBuffer::reserve: size = %d, offset = %d, nbytes = %d\n", size, offset, nbytes); if (size - offset < nbytes) { size = (offset + nbytes) * 2; data = cast(ubyte*)realloc(data, size); } } final void setsize(uint size) { assert(false); } final void reset() { offset = 0; } final void write(const(void)* data, uint nbytes) { reserve(nbytes); memcpy(this.data + offset, data, nbytes); offset += nbytes; } final void writebstring(ubyte* string_) { assert(false); } final void writestring(const(char)[] string_) { write(string_.ptr , string_.length); } final void writedstring(const(char)* string_) { assert(false); } final void writedstring(const(wchar)* string_) { assert(false); } final void prependstring(const(char)[] string_) { uint len = string_.length; reserve(len); memmove(data + len, data, offset); memcpy(data, string_.ptr, len); offset += len; } final void writenl() // write newline { assert(false); } final void writeByte(uint b) { reserve(1); this.data[offset] = cast(ubyte)b; offset++; } final void writebyte(uint b) { writeByte(b); } final void writeUTF8(uint b) { reserve(6); if (b <= 0x7F) { this.data[offset] = cast(ubyte)b; offset++; } else if (b <= 0x7FF) { this.data[offset + 0] = cast(ubyte)((b >> 6) | 0xC0); this.data[offset + 1] = cast(ubyte)((b & 0x3F) | 0x80); offset += 2; } else if (b <= 0xFFFF) { this.data[offset + 0] = cast(ubyte)((b >> 12) | 0xE0); this.data[offset + 1] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80); this.data[offset + 2] = cast(ubyte)((b & 0x3F) | 0x80); offset += 3; } else if (b <= 0x1FFFFF) { this.data[offset + 0] = cast(ubyte)((b >> 18) | 0xF0); this.data[offset + 1] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80); this.data[offset + 2] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80); this.data[offset + 3] = cast(ubyte)((b & 0x3F) | 0x80); offset += 4; } else if (b <= 0x3FFFFFF) { this.data[offset + 0] = cast(ubyte)((b >> 24) | 0xF8); this.data[offset + 1] = cast(ubyte)(((b >> 18) & 0x3F) | 0x80); this.data[offset + 2] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80); this.data[offset + 3] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80); this.data[offset + 4] = cast(ubyte)((b & 0x3F) | 0x80); offset += 5; } else if (b <= 0x7FFFFFFF) { this.data[offset + 0] = cast(ubyte)((b >> 30) | 0xFC); this.data[offset + 1] = cast(ubyte)(((b >> 24) & 0x3F) | 0x80); this.data[offset + 2] = cast(ubyte)(((b >> 18) & 0x3F) | 0x80); this.data[offset + 3] = cast(ubyte)(((b >> 12) & 0x3F) | 0x80); this.data[offset + 4] = cast(ubyte)(((b >> 6) & 0x3F) | 0x80); this.data[offset + 5] = cast(ubyte)((b & 0x3F) | 0x80); offset += 6; } else assert(0); } final void writedchar(uint b) { assert(false); } final void prependbyte(uint b) { assert(false); } final void writeword(uint w) { reserve(2); *cast(ushort*)(this.data + offset) = cast(ushort)w; offset += 2; } final void writeUTF16(uint w) { reserve(4); if (w <= 0xFFFF) { *cast(ushort*)(this.data + offset) = cast(ushort)w; offset += 2; } else if (w <= 0x10FFFF) { *cast(ushort*)(this.data + offset) = cast(ushort)((w >> 10) + 0xD7C0); *cast(ushort*)(this.data + offset + 2) = cast(ushort)((w & 0x3FF) | 0xDC00); offset += 4; } else assert(0); } final void write4(uint w) { assert(false); } final void write(OutBuffer buf) { if (buf) { reserve(buf.offset); memcpy(data + offset, buf.data, buf.offset); offset += buf.offset; } } final void write(Object obj) { assert(false); } final void fill0(uint nbytes) { reserve(nbytes); memset(data + offset, 0, nbytes); offset += nbytes; } final void align_(uint size) { assert(false); } void vprintf(const(char)* format, va_list args) { assert(false); } void printf(T...)(string format, T t) { string s = std.string.format(format, t); writestring(s); } version (M_UNICODE) { /// void vprintf(const uint short *format, va_list args); /// void printf(const uint short *format, ...); } final void bracket(char left, char right) { assert(false); } final uint bracket(uint i, const(char)* left, uint j, const(char)* right) { assert(false); } final void spread(uint offset, uint nbytes) { assert(false); } final uint insert(uint offset, const(void)* data, uint nbytes) { assert(false); } final void remove(uint offset, uint nbytes) { assert(false); } string toChars() { return getString().idup; } final string extractString() { char[] s = getString(); data = null; offset = 0; size = 0; return assumeUnique(s); } final char[] getString() { char* s = cast(char*)data; return s[0..offset]; } }