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      1 // Copyright 2017 The SwiftShader Authors. All Rights Reserved.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //    http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 #include "DiagnosticsBase.h"
     16 
     17 #include <cassert>
     18 
     19 namespace pp
     20 {
     21 
     22 Diagnostics::~Diagnostics()
     23 {
     24 }
     25 
     26 void Diagnostics::report(ID id, const SourceLocation &loc, const std::string &text)
     27 {
     28 	print(id, loc, text);
     29 }
     30 
     31 bool Diagnostics::isError(ID id)
     32 {
     33 	if ((id > PP_ERROR_BEGIN) && (id < PP_ERROR_END))
     34 		return true;
     35 
     36 	if ((id > PP_WARNING_BEGIN) && (id < PP_WARNING_END))
     37 		return false;
     38 
     39 	assert(false);
     40 	return true;
     41 }
     42 
     43 Diagnostics::Severity Diagnostics::severity(ID id)
     44 {
     45 	if((id > PP_ERROR_BEGIN) && (id < PP_ERROR_END))
     46 		return PP_ERROR;
     47 
     48 	if((id > PP_WARNING_BEGIN) && (id < PP_WARNING_END))
     49 		return PP_WARNING;
     50 
     51 	assert(false);
     52 	return PP_ERROR;
     53 }
     54 
     55 const char *Diagnostics::message(ID id)
     56 {
     57 	switch (id)
     58 	{
     59 	// Errors begin.
     60 	case PP_INTERNAL_ERROR:
     61 		return "internal error";
     62 	case PP_OUT_OF_MEMORY:
     63 		return "out of memory";
     64 	case PP_INVALID_CHARACTER:
     65 		return "invalid character";
     66 	case PP_INVALID_NUMBER:
     67 		return "invalid number";
     68 	case PP_INTEGER_OVERFLOW:
     69 		return "integer overflow";
     70 	case PP_FLOAT_OVERFLOW:
     71 		return "float overflow";
     72 	case PP_TOKEN_TOO_LONG:
     73 		return "token too long";
     74 	case PP_INVALID_EXPRESSION:
     75 		return "invalid expression";
     76 	case PP_DIVISION_BY_ZERO:
     77 		return "division by zero";
     78 	case PP_EOF_IN_COMMENT:
     79 		return "unexpected end of file found in comment";
     80 	case PP_UNEXPECTED_TOKEN:
     81 		return "unexpected token";
     82 	case PP_DIRECTIVE_INVALID_NAME:
     83 		return "invalid directive name";
     84 	case PP_MACRO_NAME_RESERVED:
     85 		return "macro name is reserved";
     86 	case PP_MACRO_REDEFINED:
     87 		return "macro redefined";
     88 	case PP_MACRO_PREDEFINED_REDEFINED:
     89 		return "predefined macro redefined";
     90 	case PP_MACRO_PREDEFINED_UNDEFINED:
     91 		return "predefined macro undefined";
     92 	case PP_MACRO_UNTERMINATED_INVOCATION:
     93 		return "unterminated macro invocation";
     94 	case PP_MACRO_UNDEFINED_WHILE_INVOKED:
     95 		return "macro undefined while being invoked";
     96 	case PP_MACRO_TOO_FEW_ARGS:
     97 		return "Not enough arguments for macro";
     98 	case PP_MACRO_TOO_MANY_ARGS:
     99 		return "Too many arguments for macro";
    100 	case PP_MACRO_DUPLICATE_PARAMETER_NAMES:
    101 		return "duplicate macro parameter name";
    102 	case PP_MACRO_INVOCATION_CHAIN_TOO_DEEP:
    103 		return "macro invocation chain too deep";
    104 	case PP_CONDITIONAL_ENDIF_WITHOUT_IF:
    105 		return "unexpected #endif found without a matching #if";
    106 	case PP_CONDITIONAL_ELSE_WITHOUT_IF:
    107 		return "unexpected #else found without a matching #if";
    108 	case PP_CONDITIONAL_ELSE_AFTER_ELSE:
    109 		return "unexpected #else found after another #else";
    110 	case PP_CONDITIONAL_ELIF_WITHOUT_IF:
    111 		return "unexpected #elif found without a matching #if";
    112 	case PP_CONDITIONAL_ELIF_AFTER_ELSE:
    113 		return "unexpected #elif found after #else";
    114 	case PP_CONDITIONAL_UNTERMINATED:
    115 		return "unexpected end of file found in conditional block";
    116 	case PP_INVALID_EXTENSION_NAME:
    117 		return "invalid extension name";
    118 	case PP_INVALID_EXTENSION_BEHAVIOR:
    119 		return "invalid extension behavior";
    120 	case PP_INVALID_EXTENSION_DIRECTIVE:
    121 		return "invalid extension directive";
    122 	case PP_INVALID_VERSION_NUMBER:
    123 		return "invalid version number";
    124 	case PP_INVALID_VERSION_DIRECTIVE:
    125 		return "invalid version directive";
    126 	case PP_VERSION_NOT_FIRST_STATEMENT:
    127 		return "#version directive must occur before anything else, "
    128 		       "except for comments and white space";
    129 	case PP_VERSION_NOT_FIRST_LINE_ESSL3:
    130 		return "#version directive must occur on the first line of the shader";
    131 	case PP_INVALID_LINE_NUMBER:
    132 		return "invalid line number";
    133 	case PP_INVALID_FILE_NUMBER:
    134 		return "invalid file number";
    135 	case PP_INVALID_LINE_DIRECTIVE:
    136 		return "invalid line directive";
    137 	case PP_NON_PP_TOKEN_BEFORE_EXTENSION_ESSL3:
    138 		return "extension directive must occur before any non-preprocessor tokens in ESSL3";
    139 	case PP_UNDEFINED_SHIFT:
    140 		return "shift exponent is negative or undefined";
    141 	case PP_TOKENIZER_ERROR:
    142 		return "internal tokenizer error";
    143 	// Errors end.
    144 	// Warnings begin.
    145 	case PP_EOF_IN_DIRECTIVE:
    146 		return "unexpected end of file found in directive";
    147 	case PP_CONDITIONAL_UNEXPECTED_TOKEN:
    148 		return "unexpected token after conditional expression";
    149 	case PP_UNRECOGNIZED_PRAGMA:
    150 		return "unrecognized pragma";
    151 	case PP_NON_PP_TOKEN_BEFORE_EXTENSION_ESSL1:
    152 		return "extension directive should occur before any non-preprocessor tokens";
    153 	case PP_WARNING_MACRO_NAME_RESERVED:
    154 		return "macro name with a double underscore is reserved - unintented behavior is "
    155 		       "possible";
    156 	// Warnings end.
    157 	default:
    158 		assert(false);
    159 		return "";
    160 	}
    161 }
    162 
    163 }  // namespace pp
    164