The Tor Browser / file comparison
comparison: gfx/graphite2/src/inc/Error.h
gfx/graphite2/src/inc/Error.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:1c0da3741c27 |
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| 1 /* GRAPHITE2 LICENSING | |
| 2 | |
| 3 Copyright 2013, SIL International | |
| 4 All rights reserved. | |
| 5 | |
| 6 This library is free software; you can redistribute it and/or modify | |
| 7 it under the terms of the GNU Lesser General Public License as published | |
| 8 by the Free Software Foundation; either version 2.1 of License, or | |
| 9 (at your option) any later version. | |
| 10 | |
| 11 This program is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Lesser General Public License for more details. | |
| 15 | |
| 16 You should also have received a copy of the GNU Lesser General Public | |
| 17 License along with this library in the file named "LICENSE". | |
| 18 If not, write to the Free Software Foundation, 51 Franklin Street, | |
| 19 Suite 500, Boston, MA 02110-1335, USA or visit their web page on the | |
| 20 internet at http://www.fsf.org/licenses/lgpl.html. | |
| 21 | |
| 22 Alternatively, the contents of this file may be used under the terms of the | |
| 23 Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public | |
| 24 License, as published by the Free Software Foundation, either version 2 | |
| 25 of the License or (at your option) any later version. | |
| 26 */ | |
| 27 #pragma once | |
| 28 | |
| 29 // numbers are explicitly assigned for future proofing | |
| 30 | |
| 31 namespace graphite2 | |
| 32 { | |
| 33 | |
| 34 class Error | |
| 35 { | |
| 36 public: | |
| 37 Error() : _e(0) {}; | |
| 38 operator bool() { return (_e != 0); } | |
| 39 int error() { return _e; } | |
| 40 void error(int e) { _e = e; } | |
| 41 bool test(bool pr, int err) { return (_e = int(pr) * err); } | |
| 42 | |
| 43 private: | |
| 44 int _e; | |
| 45 }; | |
| 46 | |
| 47 enum errcontext { | |
| 48 EC_READGLYPHS = 1, // while reading glyphs | |
| 49 EC_READSILF = 2, // in Silf table | |
| 50 EC_ASILF = 3, // in Silf %d | |
| 51 EC_APASS = 4, // in Silf %d, pass %d | |
| 52 EC_PASSCCODE = 5, // in pass constraint code for Silf %d, pass %d | |
| 53 EC_ARULE = 6, // in Silf %d, pass %d, rule %d | |
| 54 EC_ASTARTS = 7, // in Silf %d, pass %d, start state %d | |
| 55 EC_ATRANS = 8, // in Silf %d, pass %d, fsm state %d | |
| 56 EC_ARULEMAP = 9 // in Silf %d, pass %d, state %d | |
| 57 }; | |
| 58 | |
| 59 enum errors { | |
| 60 E_OUTOFMEM = 1, // Out of memory | |
| 61 E_NOGLYPHS = 2, // There are no glyphs in the font | |
| 62 E_BADUPEM = 3, // The units per em for the font is bad (0) | |
| 63 E_BADCMAP = 4, // The font does not contain any useful cmaps | |
| 64 E_NOSILF = 5, // Missing Silf table | |
| 65 E_TOOOLD = 6, // Silf table version is too old | |
| 66 E_BADSIZE = 7, // context object has the wrong structural size | |
| 67 // Silf Subtable Errors take a Silf subtable number * 256 in the context | |
| 68 E_BADMAXGLYPH = 8, // Silf max glyph id is too high | |
| 69 E_BADNUMJUSTS = 9, // Number of Silf justification blocks is too high | |
| 70 E_BADENDJUSTS = 10, // Silf justification blocks take too much of the Silf table space | |
| 71 E_BADCRITFEATURES = 11, // Critical features section in a Silf table is too big | |
| 72 E_BADSCRIPTTAGS = 12, // Silf script tags area is too big | |
| 73 E_BADAPSEUDO = 13, // The pseudo glyph attribute number is too high | |
| 74 E_BADABREAK = 14, // The linebreak glyph attribute number is too high | |
| 75 E_BADABIDI = 15, // The bidi glyph attribute number is too high | |
| 76 E_BADAMIRROR = 16, // The mirrored glyph attribute number is too high | |
| 77 E_BADNUMPASSES = 17, // The number of passes is > 128 | |
| 78 E_BADPASSESSTART = 18, // The Silf table is too small to hold any passes | |
| 79 E_BADPASSBOUND = 19, // The positioning pass number is too low or the substitution pass number is too high | |
| 80 E_BADPPASS = 20, // The positioning pass number is too high | |
| 81 E_BADSPASS = 21, // the substitution pass number is too high | |
| 82 E_BADJPASSBOUND = 22, // the justification pass must be higher than the positioning pass | |
| 83 E_BADJPASS = 23, // the justification pass is too high | |
| 84 E_BADALIG = 24, // the number of initial ligature component glyph attributes is too high | |
| 85 E_BADBPASS = 25, // the bidi pass number is specified and is either too high or too low | |
| 86 E_BADNUMPSEUDO = 26, // The number of pseudo glyphs is too high | |
| 87 E_BADCLASSSIZE = 27, // The size of the classes block is bad | |
| 88 E_TOOMANYLINEAR = 28, // The number of linear classes in the silf table is too high | |
| 89 E_CLASSESTOOBIG = 29, // There are too many classes for the space allocated in the Silf subtable | |
| 90 E_MISALIGNEDCLASSES = 30, // The class offsets in the class table don't line up with the number of classes | |
| 91 E_HIGHCLASSOFFSET = 31, // The class offsets point out of the class table | |
| 92 E_BADCLASSOFFSET = 32, // A class offset is less than one following it | |
| 93 E_BADCLASSLOOKUPINFO = 33, // The search header info for a non-linear class has wrong values in it | |
| 94 // Pass subtable errors. Context has pass number * 65536 | |
| 95 E_BADPASSSTART = 34, // The start offset for a particular pass is bad | |
| 96 E_BADPASSEND = 35, // The end offset for a particular pass is bad | |
| 97 E_BADPASSLENGTH = 36, // The length of the pass is too small | |
| 98 E_BADNUMTRANS = 37, // The number of transition states in the fsm is bad | |
| 99 E_BADNUMSUCCESS = 38, // The number of success states in the fsm is bad | |
| 100 E_BADNUMSTATES = 39, // The number of states in the fsm is bad | |
| 101 E_NORANGES = 40, // There are no columns in the fsm | |
| 102 E_BADRULEMAPLEN = 41, // The size of the success state to rule mapping is bad | |
| 103 E_BADCTXTLENBOUNDS = 42, // The precontext maximum is greater than its minimum | |
| 104 E_BADCTXTLENS = 43, // The lists of rule lengths or pre context lengths is bad | |
| 105 E_BADPASSCCODEPTR = 44, // The pass constraint code position does not align with where the forward reference says it should be | |
| 106 E_BADRULECCODEPTR = 45, // The rule constraint code position does not align with where the forward reference says it should be | |
| 107 E_BADCCODELEN = 46, // Bad rule/pass constraint code length | |
| 108 E_BADACTIONCODEPTR = 47, // The action code position does not align with where the forward reference says it should be | |
| 109 E_MUTABLECCODE = 48, // Constraint code edits slots. It shouldn't. | |
| 110 E_BADSTATE = 49, // Bad state transition referencing an illegal state | |
| 111 E_BADRULEMAPPING = 50, // The structure of the rule mapping is bad | |
| 112 E_BADRANGE = 51, // Bad column range structure including a glyph in more than one column | |
| 113 E_BADRULENUM = 52, // A reference to a rule is out of range (too high) | |
| 114 // Code errors | |
| 115 E_CODEFAILURE = 60, // Base code error. The following subcodes must align with Machine::Code::status_t in Code.h | |
| 116 E_CODEALLOC = 61, // Out of memory | |
| 117 E_INVALIDOPCODE = 62, // Invalid op code | |
| 118 E_UNIMPOPCODE = 63, // Unimplemented op code encountered | |
| 119 E_OUTOFRANGECODE = 64, // Code argument out of range | |
| 120 E_BADJUMPCODE = 65, // Code jumps past end of op codes | |
| 121 E_CODEBADARGS = 66, // Code arguments exhausted | |
| 122 E_CODENORETURN = 67, // Missing return type op code at end of code | |
| 123 E_CODENESTEDCTXT = 68 // Nested context encountered in code | |
| 124 }; | |
| 125 | |
| 126 } | |
| 127 |
