The Tor Browser: gfx/angle/src/compiler/glslang.l@141e0f1194b1 (annotated)

gfx/angle/src/compiler/glslang.l@141e0f1194b1 (annotated)

gfx/angle/src/compiler/glslang.l

Wed, 31 Dec 2014 07:16:47 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:16:47 +0100
branch: TOR_BUG_9701
changeset 3: 141e0f1194b1
permissions: -rw-r--r--

Revert simplistic fix pending revisit of Mozilla integration attempt.

 /*
 //
 // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 This file contains the Lex specification for GLSL ES.
 Based on ANSI C grammar, Lex specification:
 http://www.lysator.liu.se/c/ANSI-C-grammar-l.html
 IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh,
 WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp).
 */
 %top{
 //
 // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // This file is auto-generated by generate_parser.sh. DO NOT EDIT!
 // Ignore errors in auto-generated code.
 #if defined(__GNUC__)
 #pragma GCC diagnostic ignored "-Wunused-function"
 #pragma GCC diagnostic ignored "-Wunused-variable"
 #pragma GCC diagnostic ignored "-Wswitch-enum"
 #elif defined(_MSC_VER)
 #pragma warning(disable: 4065)
 #pragma warning(disable: 4189)
 #pragma warning(disable: 4505)
 #pragma warning(disable: 4701)
 #endif
 }
 %{
 #include "compiler/glslang.h"
 #include "compiler/ParseHelper.h"
 #include "compiler/preprocessor/Token.h"
 #include "compiler/util.h"
 #include "glslang_tab.h"
 /* windows only pragma */
 #ifdef _MSC_VER
 #pragma warning(disable : 4102)
 #endif
 #define YY_USER_ACTION                                 \
     yylloc->first_file = yylloc->last_file = yycolumn; \
     yylloc->first_line = yylloc->last_line = yylineno;
 #define YY_INPUT(buf, result, max_size) \
     result = string_input(buf, max_size, yyscanner);
 static yy_size_t string_input(char* buf, yy_size_t max_size, yyscan_t yyscanner);
 static int check_type(yyscan_t yyscanner);
 static int reserved_word(yyscan_t yyscanner);
 %}
 %option noyywrap nounput never-interactive
 %option yylineno reentrant bison-bridge bison-locations
 %option extra-type="TParseContext*"
 D           [0-9]
 L           [a-zA-Z_]
 H           [a-fA-F0-9]
 E           [Ee][+-]?{D}+
 O           [0-7]
 %%
 "invariant"    { return INVARIANT; }
 "highp"        { return HIGH_PRECISION; }
 "mediump"      { return MEDIUM_PRECISION; }
 "lowp"         { return LOW_PRECISION; }
 "precision"    { return PRECISION; }
 "attribute"    { return ATTRIBUTE; }
 "const"        { return CONST_QUAL; }
 "uniform"      { return UNIFORM; }
 "varying"      { return VARYING; }
 "break"        { return BREAK; }
 "continue"     { return CONTINUE; }
 "do"           { return DO; }
 "for"          { return FOR; }
 "while"        { return WHILE; }
 "if"           { return IF; }
 "else"         { return ELSE; }
 "in"           { return IN_QUAL; }
 "out"          { return OUT_QUAL; }
 "inout"        { return INOUT_QUAL; }
 "float"        { return FLOAT_TYPE; }
 "int"          { return INT_TYPE; }
 "void"         { return VOID_TYPE; }
 "bool"         { return BOOL_TYPE; }
 "true"         { yylval->lex.b = true;  return BOOLCONSTANT; }
 "false"        { yylval->lex.b = false; return BOOLCONSTANT; }
 "discard"      { return DISCARD; }
 "return"       { return RETURN; }
 "mat2"         { return MATRIX2; }
 "mat3"         { return MATRIX3; }
 "mat4"         { return MATRIX4; }
 "vec2"         { return VEC2; }
 "vec3"         { return VEC3; }
 "vec4"         { return VEC4; }
 "ivec2"        { return IVEC2; }
 "ivec3"        { return IVEC3; }
 "ivec4"        { return IVEC4; }
 "bvec2"        { return BVEC2; }
 "bvec3"        { return BVEC3; }
 "bvec4"        { return BVEC4; }
 "sampler2D"          { return SAMPLER2D; }
 "samplerCube"        { return SAMPLERCUBE; }
 "samplerExternalOES" { return SAMPLER_EXTERNAL_OES; }
 "sampler2DRect"      { return SAMPLER2DRECT; }
 "struct"       { return STRUCT; }
 "asm"          { return reserved_word(yyscanner); }
 "class"        { return reserved_word(yyscanner); }
 "union"        { return reserved_word(yyscanner); }
 "enum"         { return reserved_word(yyscanner); }
 "typedef"      { return reserved_word(yyscanner); }
 "template"     { return reserved_word(yyscanner); }
 "this"         { return reserved_word(yyscanner); }
 "packed"       { return reserved_word(yyscanner); }
 "goto"         { return reserved_word(yyscanner); }
 "switch"       { return reserved_word(yyscanner); }
 "default"      { return reserved_word(yyscanner); }
 "inline"       { return reserved_word(yyscanner); }
 "noinline"     { return reserved_word(yyscanner); }
 "volatile"     { return reserved_word(yyscanner); }
 "public"       { return reserved_word(yyscanner); }
 "static"       { return reserved_word(yyscanner); }
 "extern"       { return reserved_word(yyscanner); }
 "external"     { return reserved_word(yyscanner); }
 "interface"    { return reserved_word(yyscanner); }
 "flat"         { return reserved_word(yyscanner); }
 "long"         { return reserved_word(yyscanner); }
 "short"        { return reserved_word(yyscanner); }
 "double"       { return reserved_word(yyscanner); }
 "half"         { return reserved_word(yyscanner); }
 "fixed"        { return reserved_word(yyscanner); }
 "unsigned"     { return reserved_word(yyscanner); }
 "superp"       { return reserved_word(yyscanner); }
 "input"        { return reserved_word(yyscanner); }
 "output"       { return reserved_word(yyscanner); }
 "hvec2"        { return reserved_word(yyscanner); }
 "hvec3"        { return reserved_word(yyscanner); }
 "hvec4"        { return reserved_word(yyscanner); }
 "dvec2"        { return reserved_word(yyscanner); }
 "dvec3"        { return reserved_word(yyscanner); }
 "dvec4"        { return reserved_word(yyscanner); }
 "fvec2"        { return reserved_word(yyscanner); }
 "fvec3"        { return reserved_word(yyscanner); }
 "fvec4"        { return reserved_word(yyscanner); }
 "sampler1D"           { return reserved_word(yyscanner); }
 "sampler3D"           { return reserved_word(yyscanner); }
 "sampler1DShadow"     { return reserved_word(yyscanner); }
 "sampler2DShadow"     { return reserved_word(yyscanner); }
 "sampler3DRect"       { return reserved_word(yyscanner); }
 "sampler2DRectShadow" { return reserved_word(yyscanner); }
 "sizeof"       { return reserved_word(yyscanner); }
 "cast"         { return reserved_word(yyscanner); }
 "namespace"    { return reserved_word(yyscanner); }
 "using"        { return reserved_word(yyscanner); }
 {L}({L}|{D})*       {
    yylval->lex.string = NewPoolTString(yytext);
    return check_type(yyscanner);
 }
 [xX]{H}+         { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
 {O}+             { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
 {D}+              { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
 {D}+{E}           { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
 {D}+"."{D}*({E})? { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
 "."{D}+({E})?     { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
 "+="            { return ADD_ASSIGN; }
 "-="            { return SUB_ASSIGN; }
 "*="            { return MUL_ASSIGN; }
 "/="            { return DIV_ASSIGN; }
 "%="            { return MOD_ASSIGN; }
 "<<="           { return LEFT_ASSIGN; }
 ">>="           { return RIGHT_ASSIGN; }
 "&="            { return AND_ASSIGN; }
 "^="            { return XOR_ASSIGN; }
 "|="            { return OR_ASSIGN; }
 "++"            { return INC_OP; }
 "--"            { return DEC_OP; }
 "&&"            { return AND_OP; }
 "||"            { return OR_OP; }
 "^^"            { return XOR_OP; }
 "<="            { return LE_OP; }
 ">="            { return GE_OP; }
 "=="            { return EQ_OP; }
 "!="            { return NE_OP; }
 "<<"            { return LEFT_OP; }
 ">>"            { return RIGHT_OP; }
 ";"             { return SEMICOLON; }
 ("{"|"<%")      { return LEFT_BRACE; }
 ("}"|"%>")      { return RIGHT_BRACE; }
 ","         { return COMMA; }
 ":"         { return COLON; }
 "="         { return EQUAL; }
 "("         { return LEFT_PAREN; }
 ")"         { return RIGHT_PAREN; }
 ("["|"<:")  { return LEFT_BRACKET; }
 ("]"|":>")  { return RIGHT_BRACKET; }
 "."         { return DOT; }
 "!"         { return BANG; }
 "-"         { return DASH; }
 "~"         { return TILDE; }
 "+"         { return PLUS; }
 "*"         { return STAR; }
 "/"         { return SLASH; }
 "%"         { return PERCENT; }
 "<"         { return LEFT_ANGLE; }
 ">"         { return RIGHT_ANGLE; }
 "|"         { return VERTICAL_BAR; }
 "^"         { return CARET; }
 "&"         { return AMPERSAND; }
 "?"         { return QUESTION; }
 [ \t\v\n\f\r] { }
 <<EOF>>    { yyterminate(); }
 .          { assert(false); return 0; }
 %%
 yy_size_t string_input(char* buf, yy_size_t max_size, yyscan_t yyscanner) {
     pp::Token token;
     yyget_extra(yyscanner)->preprocessor.lex(&token);
     yy_size_t len = token.type == pp::Token::LAST ? 0 : token.text.size();
     if (len < max_size)
         memcpy(buf, token.text.c_str(), len);
     yyset_column(token.location.file, yyscanner);
     yyset_lineno(token.location.line, yyscanner);
     if (len >= max_size)
         YY_FATAL_ERROR("Input buffer overflow");
     else if (len > 0)
         buf[len++] = ' ';
     return len;
 }
 int check_type(yyscan_t yyscanner) {
     struct yyguts_t* yyg = (struct yyguts_t*) yyscanner;
     int token = IDENTIFIER;
     TSymbol* symbol = yyextra->symbolTable.find(yytext);
     if (symbol && symbol->isVariable()) {
         TVariable* variable = static_cast<TVariable*>(symbol);
         if (variable->isUserType())
             token = TYPE_NAME;
     }
     yylval->lex.symbol = symbol;
     return token;
 }
 int reserved_word(yyscan_t yyscanner) {
     struct yyguts_t* yyg = (struct yyguts_t*) yyscanner;
     yyextra->error(*yylloc, "Illegal use of reserved word", yytext, "");
     yyextra->recover();
     return 0;
 }
 int glslang_initialize(TParseContext* context) {
     yyscan_t scanner = NULL;
     if (yylex_init_extra(context, &scanner))
         return 1;
     context->scanner = scanner;
     return 0;
 }
 int glslang_finalize(TParseContext* context) {
     yyscan_t scanner = context->scanner;
     if (scanner == NULL) return 0;
     context->scanner = NULL;
     yylex_destroy(scanner);
     return 0;
 }
 int glslang_scan(size_t count, const char* const string[], const int length[],
                  TParseContext* context) {
     yyrestart(NULL, context->scanner);
     yyset_column(0, context->scanner);
     yyset_lineno(1, context->scanner);
     // Initialize preprocessor.
     if (!context->preprocessor.init(count, string, length))
         return 1;
     // Define extension macros.
     const TExtensionBehavior& extBehavior = context->extensionBehavior();
     for (TExtensionBehavior::const_iterator iter = extBehavior.begin();
          iter != extBehavior.end(); ++iter) {
         context->preprocessor.predefineMacro(iter->first.c_str(), 1);
     }
     if (context->fragmentPrecisionHigh)
         context->preprocessor.predefineMacro("GL_FRAGMENT_PRECISION_HIGH", 1);
     return 0;
 }

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gfx/angle/src/compiler/glslang.l@141e0f1194b1 (annotated)

gfx/angle/src/compiler/glslang.l