1 // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors 2 // Licensed under the MIT License: 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy 5 // of this software and associated documentation files (the "Software"), to deal 6 // in the Software without restriction, including without limitation the rights 7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 // copies of the Software, and to permit persons to whom the Software is 9 // furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 // THE SOFTWARE. 21 22 module capnproto.ElementSize; 23 24 struct ElementSize 25 { 26 static enum ubyte VOID = 0; 27 static enum ubyte BIT = 1; 28 static enum ubyte BYTE = 2; 29 static enum ubyte TWO_BYTES = 3; 30 static enum ubyte FOUR_BYTES = 4; 31 static enum ubyte EIGHT_BYTES = 5; 32 static enum ubyte POINTER = 6; 33 static enum ubyte INLINE_COMPOSITE = 7; 34 35 static uint dataBitsPerElement(ubyte size) 36 { 37 switch(size) 38 { 39 case VOID: 40 return 0; 41 case BIT: 42 return 1; 43 case BYTE: 44 return 8; 45 case TWO_BYTES: 46 return 16; 47 case FOUR_BYTES: 48 return 32; 49 case EIGHT_BYTES: 50 return 64; 51 case POINTER: 52 return 0; 53 case INLINE_COMPOSITE: 54 return 0; 55 default: 56 break; 57 } 58 import std.conv : to; 59 assert(0, "Impossible field size: " ~ to!string(size)); 60 } 61 62 static ushort pointersPerElement(ubyte size) 63 { 64 switch(size) 65 { 66 case POINTER: 67 return 1; 68 default: 69 break; 70 } 71 return 0; 72 } 73 }