+.deps
+COPYING
+INSTALL
+Makefile.in
+aclocal.m4
+autom4te.cache
+config.*
+configure
+depcomp
+ylwrap
+install-sh
+missing
+stamp-h1
+Makefile
*.o
*~
builtin_types.h
glsl_lexer.cpp
glsl_parser.output
-glsl_parser.tab.cpp
-glsl_parser.tab.h
-glsl_parser.tab.hpp
+glsl_parser.cpp
+glsl_parser.h
glsl
+++ /dev/null
-CSRCS = symbol_table.c hash_table.c glsl_types.c
-CCSRCS = glsl_parser.tab.cpp glsl_lexer.cpp glsl_parser_extras.cpp \
- ast_expr.cpp
-# ast_to_hir.cpp ir.cpp hir_field_selection.cpp
-OBJS = $(CSRCS:.c=.o) $(CCSRCS:.cpp=.o)
-
-CC = gcc
-CXX = g++
-WARN = -Wall -Wextra -Wunsafe-loop-optimizations -Wstack-protector \
- -Wunreachable-code
-CPPFLAGS = -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
-CFLAGS = -O0 -ggdb3 -fstack-protector $(CPPFLAGS) $(WARN) -std=c89 -ansi -pedantic
-CXXFLAGS = -O0 -ggdb3 -fstack-protector $(CPPFLAGS) $(WARN)
-LDLAGS = -ggdb3
-
-glsl: $(OBJS)
- $(CXX) $(LDLAGS) $(OBJS) -o glsl
-
-glsl_parser.tab.cpp glsl_parser.tab.h: glsl_parser.y
- bison --report-file=glsl_parser.output -v -d \
- --output=glsl_parser.tab.cpp \
- --name-prefix=_mesa_glsl_ $< && \
- mv glsl_parser.tab.hpp glsl_parser.tab.h
-
-glsl_lexer.cpp: glsl_lexer.l
- flex --outfile="glsl_lexer.cpp" $<
-
-glsl_parser_tab.o: glsl_parser.tab.cpp
-glsl_types.o: glsl_types.c glsl_types.h builtin_types.h
-glsl_lexer.o: glsl_lexer.cpp glsl_parser.tab.h glsl_parser_extras.h ast.h
-glsl_parser.o: glsl_parser_extras.h ast.h
-ast_to_hir.o: ast_to_hir.cpp symbol_table.h glsl_parser_extras.h ast.h glsl_types.h ir.h
-
-builtin_types.h: builtin_types.sh
- ./builtin_types.sh > builtin_types.h
-
-clean:
- rm -f $(OBJS) glsl
- rm -f glsl_lexer.cpp glsl_parser.tab.{cpp,h,hpp} glsl_parser.output
- rm -f builtin_types.h
- rm -f *~
\ No newline at end of file
--- /dev/null
+# Copyright © 2010 Intel Corporation
+# All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, and/or sell copies of the Software, and to permit persons to whom
+# the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+# AUTHORS, COPYRIGHT HOLDERS, AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+# USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+AUTOMAKE_OPTIONS = foreign
+
+bin_PROGRAMS = glsl
+glsl_SOURCES = symbol_table.c hash_table.c glsl_types.c \
+ glsl_parser.ypp glsl_lexer.lpp glsl_parser_extras.cpp \
+ ast_expr.cpp
+# ast_to_hir.cpp ir.cpp hir_field_selection.cpp
+
+BUILT_SOURCES = glsl_parser.h builtin_types.h
+
+glsl_parser.h: glsl_parser.ypp
+
+.lpp.cpp:
+ $(LEXCOMPILE) --outfile="$@" $<
+
+builtin_types.h: builtin_types.sh
+ sh ./builtin_types.sh > builtin_types.h
--- /dev/null
+#! /bin/sh
+
+srcdir=`dirname $0`
+test -z "$srcdir" && srcdir=.
+
+ORIGDIR=`pwd`
+cd $srcdir
+
+autoreconf -v --install || exit 1
+cd $ORIGDIR || exit $?
+
+$srcdir/configure --enable-maintainer-mode "$@"
--- /dev/null
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.61)
+AC_INIT(glsl, XXXXX, idr@freedesktop.org, glsl)
+AC_CONFIG_SRCDIR([Makefile.am])
+AM_CONFIG_HEADER([config.h])
+
+AM_INIT_AUTOMAKE
+
+AM_MAINTAINER_MODE
+
+# Checks for programs.
+AC_PROG_CXX
+AC_PROG_CC
+AC_PROG_MAKE_SET
+AC_PROG_YACC
+AC_PROG_LEX
+
+# Checks for libraries.
+
+# Checks for header files.
+
+# Checks for typedefs, structures, and compiler characteristics.
+
+# Checks for library functions.
+AC_HEADER_STDC
+
+
+AC_ARG_ENABLE([debug],
+ [AS_HELP_STRING([--enable-debug],
+ [use debug compiler flags and macros @<:@default=disabled@:>@])],
+ [enable_debug="$enableval"],
+ [enable_debug=no]
+)
+if test "x$enable_debug" = xyes; then
+ DEFINES="$DEFINES -DDEBUG"
+ if test "x$GCC" = xyes; then
+ # Remove any -g or -O flags from the command line
+ CFLAGS=[`echo $CFLAGS | sed 's/-g[^ \t]*[ \t]*//g;s/-O[^ \t]*[ \t]*//g'`]
+ CFLAGS="$CFLAGS -O0 -ggdb3 -fstack-protector -D_FORTIFY_SOURCE=2"
+ fi
+ if test "x$GXX" = xyes; then
+ # Remove any -g flags from the command line
+ CXXFLAGS=[`echo $CXXFLAGS | sed 's/-g[^ \t]*[ \t]*//g;s/-O[^ \t]*[ \t]*//g'`]
+ CXXFLAGS="$CXXFLAGS -O0 -ggdb3 -fstack-protector -D_FORTIFY_SOURCE=2"
+ fi
+fi
+
+
+if test "x$GCC" = xyes ; then
+ WARN="-Wall -Wextra -Wunsafe-loop-optimizations -Wstack-protector -Wunreadchable-code"
+else
+ WARN=""
+fi
+
+if test "x$GXX" = xyes ; then
+ WARN="-Wall -Wextra -Wunsafe-loop-optimizations -Wstack-protector"
+else
+ WARN=""
+fi
+
+if test "x$GCC" = xyes ; then
+ CFLAGS="$CFLAGS -std=c89 -ansi -pedantic"
+fi
+
+CFLAGS="$CFLAGS $WARN"
+CXXFLAGS="$CXXFLAGS $WARN"
+YFLAGS="-d -v"
+
+AC_OUTPUT([Makefile])
+++ /dev/null
-%{
-/*
- * Copyright © 2008, 2009 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-#include "ast.h"
-#include "glsl_parser_extras.h"
-#include "glsl_parser.tab.h"
-#include "symbol_table.h"
-
-#define YY_USER_ACTION \
- do { \
- yylloc->source = 0; \
- yylloc->first_column = yycolumn + 1; \
- yylloc->first_line = yylineno + 1; \
- yycolumn += yyleng; \
- } while(0);
-
-%}
-
-%option bison-bridge bison-locations reentrant noyywrap
-%option never-interactive
-%option prefix="_mesa_glsl_"
-%option extra-type="struct _mesa_glsl_parse_state *"
-%option stack
-
-%x PP COMMENT
-
-%%
-
-"/*" { yy_push_state(COMMENT, yyscanner); }
-<COMMENT>[^*\n]*
-<COMMENT>[^*\n]*\n { yylineno++; yycolumn = 0; }
-<COMMENT>"*"+[^*/\n]*
-<COMMENT>"*"+[^*/\n]*\n { yylineno++; yycolumn = 0; }
-<COMMENT>"*"+"/" { yy_pop_state(yyscanner); }
-
-\/\/.*\n { yylineno++; yycolumn = 0; }
-[ \r\t]+ ;
-
- /* Preprocessor tokens. */
-^[ \t]*#[ \t]*$ ;
-^[ \t]*#[ \t]*version { BEGIN PP; return VERSION; }
-^[ \t]*#[ \t]*extension { BEGIN PP; return EXTENSION; }
-^[ \t]*#[ \t]*line { BEGIN PP; return LINE; }
-^[ \t]*#[ \t]*pragma { BEGIN PP; return PRAGMA; }
-<PP>: return COLON;
-<PP>[_a-zA-Z][_a-zA-Z0-9]* {
- yylval->identifier = strdup(yytext);
- return IDENTIFIER;
- }
-<PP>[1-9][0-9]* {
- yylval->n = strtol(yytext, NULL, 10);
- return INTCONSTANT;
- }
-<PP>\n { BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
-
-\n { yylineno++; yycolumn = 0; }
-
-attribute return ATTRIBUTE;
-const return CONST;
-bool return BOOL;
-float return FLOAT;
-int return INT;
-
-break return BREAK;
-continue return CONTINUE;
-do return DO;
-while return WHILE;
-else return ELSE;
-for return FOR;
-if return IF;
-discard return DISCARD;
-return return RETURN;
-
-bvec2 return BVEC2;
-bvec3 return BVEC3;
-bvec4 return BVEC4;
-ivec2 return IVEC2;
-ivec3 return IVEC3;
-ivec4 return IVEC4;
-vec2 return VEC2;
-vec3 return VEC3;
-vec4 return VEC4;
-mat2 return MAT2;
-mat3 return MAT3;
-mat4 return MAT4;
-mat2x2 return MAT2X2;
-mat2x3 return MAT2X3;
-mat2x4 return MAT2X4;
-mat3x2 return MAT3X2;
-mat3x3 return MAT3X3;
-mat3x4 return MAT3X4;
-mat4x2 return MAT4X2;
-mat4x3 return MAT4X3;
-mat4x4 return MAT4X4;
-
-in return IN;
-out return OUT;
-inout return INOUT;
-uniform return UNIFORM;
-varying return VARYING;
-centroid return CENTROID;
-invariant return INVARIANT;
-
-sampler1D return SAMPLER1D;
-sampler2D return SAMPLER2D;
-sampler3D return SAMPLER3D;
-samplerCube return SAMPLERCUBE;
-sampler1DShadow return SAMPLER1DSHADOW;
-sampler2DShadow return SAMPLER2DSHADOW;
-
-struct return STRUCT;
-void return VOID;
-
-\+\+ return INC_OP;
--- return DEC_OP;
-\<= return LE_OP;
->= return GE_OP;
-== return EQ_OP;
-!= return NE_OP;
-&& return AND_OP;
-\|\| return OR_OP;
-"^^" return XOR_OP;
-
-\*= return MUL_ASSIGN;
-\/= return DIV_ASSIGN;
-\+= return ADD_ASSIGN;
-\%= return MOD_ASSIGN;
-\<\<= return LEFT_ASSIGN;
->>= return RIGHT_ASSIGN;
-&= return AND_ASSIGN;
-^= return XOR_ASSIGN;
-\|= return OR_ASSIGN;
--= return SUB_ASSIGN;
-
-[1-9][0-9]* {
- yylval->n = strtol(yytext, NULL, 10);
- return INTCONSTANT;
- }
-0[xX][0-9a-fA-F]+ {
- yylval->n = strtol(yytext + 2, NULL, 16);
- return INTCONSTANT;
- }
-0[0-7]* {
- yylval->n = strtol(yytext + 2, NULL, 8);
- return INTCONSTANT;
- }
-
-[0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
- yylval->real = strtod(yytext, NULL);
- return FLOATCONSTANT;
- }
-\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
- yylval->real = strtod(yytext, NULL);
- return FLOATCONSTANT;
- }
-[0-9]+\.([eE][+-]?[0-9]+)?[fF]? {
- yylval->real = strtod(yytext, NULL);
- return FLOATCONSTANT;
- }
-[0-9]+[eE][+-]?[0-9]+[fF]? {
- yylval->real = strtod(yytext, NULL);
- return FLOATCONSTANT;
- }
-
-true {
- yylval->n = 1;
- return BOOLCONSTANT;
- }
-false {
- yylval->n = 0;
- return BOOLCONSTANT;
- }
-
-
- /* Reserved words in GLSL 1.10. */
-asm return ASM;
-class return CLASS;
-union return UNION;
-enum return ENUM;
-typedef return TYPEDEF;
-template return TEMPLATE;
-this return THIS;
-packed return PACKED;
-goto return GOTO;
-switch return SWITCH;
-default return DEFAULT;
-inline return INLINE;
-noinline return NOINLINE;
-volatile return VOLATILE;
-public return PUBLIC;
-static return STATIC;
-extern return EXTERN;
-external return EXTERNAL;
-interface return INTERFACE;
-long return LONG;
-short return SHORT;
-double return DOUBLE;
-half return HALF;
-fixed return FIXED;
-unsigned return UNSIGNED;
-input return INPUT;
-output return OUTPUT;
-hvec2 return HVEC2;
-hvec3 return HVEC3;
-hvec4 return HVEC4;
-dvec2 return DVEC2;
-dvec3 return DVEC3;
-dvec4 return DVEC4;
-fvec2 return FVEC2;
-fvec3 return FVEC3;
-fvec4 return FVEC4;
-sampler2DRect return SAMPLER2DRECT;
-sampler3DRect return SAMPLER3DRECT;
-sampler2DRectShadow return SAMPLER2DRECTSHADOW;
-sizeof return SIZEOF;
-cast return CAST;
-namespace return NAMESPACE;
-using return USING;
-
- /* Additional reserved words in GLSL 1.20. */
-lowp return LOWP;
-mediump return MEDIUMP;
-highp return HIGHP;
-precision return PRECISION;
-
-[_a-zA-Z][_a-zA-Z0-9]* {
- yylval->identifier = strdup(yytext);
-
- if (_mesa_symbol_table_find_symbol(yyextra->symbols,
- 0,
- yylval->identifier))
- return TYPE_NAME;
- else
- return IDENTIFIER;
- }
-
-. { return yytext[0]; }
-
-%%
-
-void
-_mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state,
- const char *string, size_t len)
-{
- yylex_init_extra(state, & state->scanner);
- yy_scan_bytes(string, len, state->scanner);
-}
-
-void
-_mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state)
-{
- yylex_destroy(state->scanner);
-}
--- /dev/null
+%{
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_parser.h"
+#include "symbol_table.h"
+
+#define YY_USER_ACTION \
+ do { \
+ yylloc->source = 0; \
+ yylloc->first_column = yycolumn + 1; \
+ yylloc->first_line = yylineno + 1; \
+ yycolumn += yyleng; \
+ } while(0);
+
+%}
+
+%option bison-bridge bison-locations reentrant noyywrap
+%option never-interactive
+%option prefix="_mesa_glsl_"
+%option extra-type="struct _mesa_glsl_parse_state *"
+%option stack
+
+%x PP COMMENT
+
+%%
+
+"/*" { yy_push_state(COMMENT, yyscanner); }
+<COMMENT>[^*\n]*
+<COMMENT>[^*\n]*\n { yylineno++; yycolumn = 0; }
+<COMMENT>"*"+[^*/\n]*
+<COMMENT>"*"+[^*/\n]*\n { yylineno++; yycolumn = 0; }
+<COMMENT>"*"+"/" { yy_pop_state(yyscanner); }
+
+\/\/.*\n { yylineno++; yycolumn = 0; }
+[ \r\t]+ ;
+
+ /* Preprocessor tokens. */
+^[ \t]*#[ \t]*$ ;
+^[ \t]*#[ \t]*version { BEGIN PP; return VERSION; }
+^[ \t]*#[ \t]*extension { BEGIN PP; return EXTENSION; }
+^[ \t]*#[ \t]*line { BEGIN PP; return LINE; }
+^[ \t]*#[ \t]*pragma { BEGIN PP; return PRAGMA; }
+<PP>: return COLON;
+<PP>[_a-zA-Z][_a-zA-Z0-9]* {
+ yylval->identifier = strdup(yytext);
+ return IDENTIFIER;
+ }
+<PP>[1-9][0-9]* {
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+<PP>\n { BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
+
+\n { yylineno++; yycolumn = 0; }
+
+attribute return ATTRIBUTE;
+const return CONST;
+bool return BOOL;
+float return FLOAT;
+int return INT;
+
+break return BREAK;
+continue return CONTINUE;
+do return DO;
+while return WHILE;
+else return ELSE;
+for return FOR;
+if return IF;
+discard return DISCARD;
+return return RETURN;
+
+bvec2 return BVEC2;
+bvec3 return BVEC3;
+bvec4 return BVEC4;
+ivec2 return IVEC2;
+ivec3 return IVEC3;
+ivec4 return IVEC4;
+vec2 return VEC2;
+vec3 return VEC3;
+vec4 return VEC4;
+mat2 return MAT2;
+mat3 return MAT3;
+mat4 return MAT4;
+mat2x2 return MAT2X2;
+mat2x3 return MAT2X3;
+mat2x4 return MAT2X4;
+mat3x2 return MAT3X2;
+mat3x3 return MAT3X3;
+mat3x4 return MAT3X4;
+mat4x2 return MAT4X2;
+mat4x3 return MAT4X3;
+mat4x4 return MAT4X4;
+
+in return IN;
+out return OUT;
+inout return INOUT;
+uniform return UNIFORM;
+varying return VARYING;
+centroid return CENTROID;
+invariant return INVARIANT;
+
+sampler1D return SAMPLER1D;
+sampler2D return SAMPLER2D;
+sampler3D return SAMPLER3D;
+samplerCube return SAMPLERCUBE;
+sampler1DShadow return SAMPLER1DSHADOW;
+sampler2DShadow return SAMPLER2DSHADOW;
+
+struct return STRUCT;
+void return VOID;
+
+\+\+ return INC_OP;
+-- return DEC_OP;
+\<= return LE_OP;
+>= return GE_OP;
+== return EQ_OP;
+!= return NE_OP;
+&& return AND_OP;
+\|\| return OR_OP;
+"^^" return XOR_OP;
+
+\*= return MUL_ASSIGN;
+\/= return DIV_ASSIGN;
+\+= return ADD_ASSIGN;
+\%= return MOD_ASSIGN;
+\<\<= return LEFT_ASSIGN;
+>>= return RIGHT_ASSIGN;
+&= return AND_ASSIGN;
+^= return XOR_ASSIGN;
+\|= return OR_ASSIGN;
+-= return SUB_ASSIGN;
+
+[1-9][0-9]* {
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+0[xX][0-9a-fA-F]+ {
+ yylval->n = strtol(yytext + 2, NULL, 16);
+ return INTCONSTANT;
+ }
+0[0-7]* {
+ yylval->n = strtol(yytext + 2, NULL, 8);
+ return INTCONSTANT;
+ }
+
+[0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+[0-9]+\.([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+[0-9]+[eE][+-]?[0-9]+[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+
+true {
+ yylval->n = 1;
+ return BOOLCONSTANT;
+ }
+false {
+ yylval->n = 0;
+ return BOOLCONSTANT;
+ }
+
+
+ /* Reserved words in GLSL 1.10. */
+asm return ASM;
+class return CLASS;
+union return UNION;
+enum return ENUM;
+typedef return TYPEDEF;
+template return TEMPLATE;
+this return THIS;
+packed return PACKED;
+goto return GOTO;
+switch return SWITCH;
+default return DEFAULT;
+inline return INLINE;
+noinline return NOINLINE;
+volatile return VOLATILE;
+public return PUBLIC;
+static return STATIC;
+extern return EXTERN;
+external return EXTERNAL;
+interface return INTERFACE;
+long return LONG;
+short return SHORT;
+double return DOUBLE;
+half return HALF;
+fixed return FIXED;
+unsigned return UNSIGNED;
+input return INPUT;
+output return OUTPUT;
+hvec2 return HVEC2;
+hvec3 return HVEC3;
+hvec4 return HVEC4;
+dvec2 return DVEC2;
+dvec3 return DVEC3;
+dvec4 return DVEC4;
+fvec2 return FVEC2;
+fvec3 return FVEC3;
+fvec4 return FVEC4;
+sampler2DRect return SAMPLER2DRECT;
+sampler3DRect return SAMPLER3DRECT;
+sampler2DRectShadow return SAMPLER2DRECTSHADOW;
+sizeof return SIZEOF;
+cast return CAST;
+namespace return NAMESPACE;
+using return USING;
+
+ /* Additional reserved words in GLSL 1.20. */
+lowp return LOWP;
+mediump return MEDIUMP;
+highp return HIGHP;
+precision return PRECISION;
+
+[_a-zA-Z][_a-zA-Z0-9]* {
+ yylval->identifier = strdup(yytext);
+
+ if (_mesa_symbol_table_find_symbol(yyextra->symbols,
+ 0,
+ yylval->identifier))
+ return TYPE_NAME;
+ else
+ return IDENTIFIER;
+ }
+
+. { return yytext[0]; }
+
+%%
+
+void
+_mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state,
+ const char *string, size_t len)
+{
+ yylex_init_extra(state, & state->scanner);
+ yy_scan_bytes(string, len, state->scanner);
+}
+
+void
+_mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state)
+{
+ yylex_destroy(state->scanner);
+}
+++ /dev/null
-%{
-/*
- * Copyright © 2008, 2009 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#include "ast.h"
-#include "glsl_parser_extras.h"
-#include "symbol_table.h"
-#include "glsl_types.h"
-
-#define YYLEX_PARAM state->scanner
-
-%}
-
-%pure-parser
-%locations
-%error-verbose
-
-%lex-param {void *scanner}
-%parse-param {struct _mesa_glsl_parse_state *state}
-
-%union {
- int n;
- float real;
- char *identifier;
-
- union {
- struct ast_type_qualifier q;
- unsigned i;
- } type_qualifier;
-
- struct ast_node *node;
- struct ast_type_specifier *type_specifier;
- struct ast_fully_specified_type *fully_specified_type;
- struct ast_function *function;
- struct ast_parameter_declarator *parameter_declarator;
- struct ast_function_definition *function_definition;
- struct ast_compound_statement *compound_statement;
- struct ast_expression *expression;
- struct ast_declarator_list *declarator_list;
- struct ast_struct_specifier *struct_specifier;
- struct ast_declaration *declaration;
-
- struct {
- struct ast_node *cond;
- struct ast_expression *rest;
- } for_rest_statement;
-}
-
-%token ATTRIBUTE CONST BOOL FLOAT INT UINT
-%token BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN SWITCH CASE DEFAULT
-%token BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 UVEC2 UVEC3 UVEC4 VEC2 VEC3 VEC4
-%token MAT2 MAT3 MAT4 CENTROID IN OUT INOUT UNIFORM VARYING
-%token NOPERSPECTIVE FLAT SMOOTH
-%token MAT2X2 MAT2X3 MAT2X4
-%token MAT3X2 MAT3X3 MAT3X4
-%token MAT4X2 MAT4X3 MAT4X4
-%token SAMPLER1D SAMPLER2D SAMPLER3D SAMPLERCUBE SAMPLER1DSHADOW SAMPLER2DSHADOW
-%token SAMPLERCUBESHADOW SAMPLER1DARRAY SAMPLER2DARRAY SAMPLER1DARRAYSHADOW
-%token SAMPLER2DARRAYSHADOW ISAMPLER1D ISAMPLER2D ISAMPLER3D ISAMPLERCUBE
-%token ISAMPLER1DARRAY ISAMPLER2DARRAY USAMPLER1D USAMPLER2D USAMPLER3D
-%token USAMPLERCUBE USAMPLER1DARRAY USAMPLER2DARRAY
-%token STRUCT VOID WHILE
-%token <identifier> IDENTIFIER TYPE_NAME
-%token <real> FLOATCONSTANT
-%token <n> INTCONSTANT UINTCONSTANT BOOLCONSTANT
-%token <identifier> FIELD_SELECTION
-%token LEFT_OP RIGHT_OP
-%token INC_OP DEC_OP LE_OP GE_OP EQ_OP NE_OP
-%token AND_OP OR_OP XOR_OP MUL_ASSIGN DIV_ASSIGN ADD_ASSIGN
-%token MOD_ASSIGN LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN
-%token SUB_ASSIGN
-%token INVARIANT
-%token HIGH_PRECISION MEDIUM_PRECISION LOW_PRECISION PRECISION
-
-%token VERSION EXTENSION LINE PRAGMA COLON EOL INTERFACE OUTPUT
-
- /* Reserved words that are not actually used in the grammar.
- */
-%token ASM CLASS UNION ENUM TYPEDEF TEMPLATE THIS PACKED GOTO
-%token INLINE NOINLINE VOLATILE PUBLIC STATIC EXTERN EXTERNAL
-%token LONG SHORT DOUBLE HALF FIXED UNSIGNED INPUT OUPTUT
-%token HVEC2 HVEC3 HVEC4 DVEC2 DVEC3 DVEC4 FVEC2 FVEC3 FVEC4
-%token SAMPLER2DRECT SAMPLER3DRECT SAMPLER2DRECTSHADOW
-%token SIZEOF CAST NAMESPACE USING LOWP MEDIUMP HIGHP
-
-%type <identifier> variable_identifier
-%type <node> statement
-%type <node> statement_list
-%type <node> simple_statement
-%type <node> statement_matched
-%type <node> statement_unmatched
-%type <n> precision_qualifier
-%type <type_qualifier> type_qualifier
-%type <type_qualifier> storage_qualifier
-%type <type_qualifier> interpolation_qualifier
-%type <type_specifier> type_specifier
-%type <type_specifier> type_specifier_no_prec
-%type <type_specifier> type_specifier_nonarray
-%type <n> basic_type_specifier_nonarray
-%type <fully_specified_type> fully_specified_type
-%type <function> function_prototype
-%type <function> function_header
-%type <function> function_header_with_parameters
-%type <function> function_declarator
-%type <parameter_declarator> parameter_declarator
-%type <parameter_declarator> parameter_declaration
-%type <type_qualifier> parameter_qualifier
-%type <type_qualifier> parameter_type_qualifier
-%type <type_specifier> parameter_type_specifier
-%type <function_definition> function_definition
-%type <compound_statement> compound_statement_no_new_scope
-%type <compound_statement> compound_statement
-%type <node> statement_no_new_scope
-%type <node> expression_statement
-%type <expression> expression
-%type <expression> primary_expression
-%type <expression> assignment_expression
-%type <expression> conditional_expression
-%type <expression> logical_or_expression
-%type <expression> logical_xor_expression
-%type <expression> logical_and_expression
-%type <expression> inclusive_or_expression
-%type <expression> exclusive_or_expression
-%type <expression> and_expression
-%type <expression> equality_expression
-%type <expression> relational_expression
-%type <expression> shift_expression
-%type <expression> additive_expression
-%type <expression> multiplicative_expression
-%type <expression> unary_expression
-%type <expression> constant_expression
-%type <expression> integer_expression
-%type <expression> postfix_expression
-%type <expression> function_call_header_with_parameters
-%type <expression> function_call_header_no_parameters
-%type <expression> function_call_header
-%type <expression> function_call_generic
-%type <expression> function_call_or_method
-%type <expression> function_call
-%type <n> assignment_operator
-%type <n> unary_operator
-%type <node> function_identifier
-%type <node> external_declaration
-%type <declarator_list> init_declarator_list
-%type <declarator_list> single_declaration
-%type <expression> initializer
-%type <node> declaration
-%type <node> declaration_statement
-%type <node> jump_statement
-%type <struct_specifier> struct_specifier
-%type <node> struct_declaration_list
-%type <declarator_list> struct_declaration
-%type <declaration> struct_declarator
-%type <declaration> struct_declarator_list
-%type <node> selection_statement_matched
-%type <node> selection_statement_unmatched
-%type <node> iteration_statement
-%type <node> condition
-%type <node> conditionopt
-%type <node> for_init_statement
-%type <for_rest_statement> for_rest_statement
-%%
-
-translation_unit:
- version_statement
- {
- _mesa_glsl_initialize_types(state);
- }
- external_declaration_list
- |
- {
- state->language_version = 110;
- _mesa_glsl_initialize_types(state);
- }
- external_declaration_list
- ;
-
-version_statement:
- VERSION INTCONSTANT EOL
- {
- switch ($2) {
- case 110:
- case 120:
- case 130:
- /* FINISHME: Check against implementation support versions. */
- state->language_version = $2;
- break;
- default:
- _mesa_glsl_error(& @2, state, "Shading language version"
- "%u is not supported\n", $2);
- break;
- }
- }
- ;
-
-external_declaration_list:
- external_declaration
- {
- insert_at_tail(& state->translation_unit,
- (struct simple_node *) $1);
- }
- | external_declaration_list external_declaration
- {
- insert_at_tail(& state->translation_unit,
- (struct simple_node *) $2);
- }
- ;
-
-variable_identifier:
- IDENTIFIER
- ;
-
-primary_expression:
- variable_identifier
- {
- $$ = new ast_expression(ast_identifier, NULL, NULL, NULL);
- $$->primary_expression.identifier = $1;
- }
- | INTCONSTANT
- {
- $$ = new ast_expression(ast_int_constant, NULL, NULL, NULL);
- $$->primary_expression.int_constant = $1;
- }
- | UINTCONSTANT
- {
- $$ = new ast_expression(ast_uint_constant, NULL, NULL, NULL);
- $$->primary_expression.uint_constant = $1;
- }
- | FLOATCONSTANT
- {
- $$ = new ast_expression(ast_float_constant, NULL, NULL, NULL);
- $$->primary_expression.float_constant = $1;
- }
- | BOOLCONSTANT
- {
- $$ = new ast_expression(ast_bool_constant, NULL, NULL, NULL);
- $$->primary_expression.bool_constant = $1;
- }
- | '(' expression ')'
- {
- $$ = $2;
- }
- ;
-
-postfix_expression:
- primary_expression
- | postfix_expression '[' integer_expression ']'
- {
- $$ = new ast_expression(ast_array_index, $1, $3, NULL);
- }
- | function_call
- {
- $$ = $1;
- }
- | postfix_expression '.' IDENTIFIER
- {
- $$ = new ast_expression(ast_field_selection, $1, NULL, NULL);
- $$->primary_expression.identifier = $3;
- }
- | postfix_expression INC_OP
- {
- $$ = new ast_expression(ast_post_inc, $1, NULL, NULL);
- }
- | postfix_expression DEC_OP
- {
- $$ = new ast_expression(ast_post_dec, $1, NULL, NULL);
- }
- ;
-
-integer_expression:
- expression
- ;
-
-function_call:
- function_call_or_method
- ;
-
-function_call_or_method:
- function_call_generic
- | postfix_expression '.' function_call_generic
- {
- $$ = new ast_expression(ast_field_selection, $1, $3, NULL);
- }
- ;
-
-function_call_generic:
- function_call_header_with_parameters ')'
- | function_call_header_no_parameters ')'
- ;
-
-function_call_header_no_parameters:
- function_call_header VOID
- | function_call_header
- ;
-
-function_call_header_with_parameters:
- function_call_header assignment_expression
- {
- $$ = $1;
- $$->subexpressions[1] = $2;
- }
- | function_call_header_with_parameters ',' assignment_expression
- {
- $$ = $1;
- insert_at_tail((struct simple_node *) $$->subexpressions[1],
- (struct simple_node *) $3);
- }
- ;
-
- // Grammar Note: Constructors look like functions, but lexical
- // analysis recognized most of them as keywords. They are now
- // recognized through "type_specifier".
-function_call_header:
- function_identifier '('
- {
- $$ = new ast_expression(ast_function_call,
- (struct ast_expression *) $1,
- NULL, NULL);
- }
- ;
-
-function_identifier:
- type_specifier
- {
- $$ = (struct ast_node *) $1;
- }
- | IDENTIFIER
- {
- ast_expression *expr =
- new ast_expression(ast_identifier, NULL, NULL, NULL);
- expr->primary_expression.identifier = $1;
-
- $$ = (struct ast_node *) expr;
- }
- | FIELD_SELECTION
- {
- ast_expression *expr =
- new ast_expression(ast_identifier, NULL, NULL, NULL);
- expr->primary_expression.identifier = $1;
-
- $$ = (struct ast_node *) expr;
- }
- ;
-
- // Grammar Note: No traditional style type casts.
-unary_expression:
- postfix_expression
- | INC_OP unary_expression
- {
- $$ = new ast_expression(ast_pre_inc, $2, NULL, NULL);
- }
- | DEC_OP unary_expression
- {
- $$ = new ast_expression(ast_pre_dec, $2, NULL, NULL);
- }
- | unary_operator unary_expression
- {
- $$ = new ast_expression($1, $2, NULL, NULL);
- }
- ;
-
- // Grammar Note: No '*' or '&' unary ops. Pointers are not supported.
-unary_operator:
- '+' { $$ = ast_plus; }
- | '-' { $$ = ast_neg; }
- | '!' { $$ = ast_logic_not; }
- | '~' { $$ = ast_bit_not; }
- ;
-
-multiplicative_expression:
- unary_expression
- | multiplicative_expression '*' unary_expression
- {
- $$ = new ast_expression_bin(ast_mul, $1, $3);
- }
- | multiplicative_expression '/' unary_expression
- {
- $$ = new ast_expression_bin(ast_div, $1, $3);
- }
- | multiplicative_expression '%' unary_expression
- {
- $$ = new ast_expression_bin(ast_mod, $1, $3);
- }
- ;
-
-additive_expression:
- multiplicative_expression
- | additive_expression '+' multiplicative_expression
- {
- $$ = new ast_expression_bin(ast_add, $1, $3);
- }
- | additive_expression '-' multiplicative_expression
- {
- $$ = new ast_expression_bin(ast_sub, $1, $3);
- }
- ;
-
-shift_expression:
- additive_expression
- | shift_expression LEFT_OP additive_expression
- {
- $$ = new ast_expression_bin(ast_lshift, $1, $3);
- }
- | shift_expression RIGHT_OP additive_expression
- {
- $$ = new ast_expression_bin(ast_rshift, $1, $3);
- }
- ;
-
-relational_expression:
- shift_expression
- | relational_expression '<' shift_expression
- {
- $$ = new ast_expression_bin(ast_less, $1, $3);
- }
- | relational_expression '>' shift_expression
- {
- $$ = new ast_expression_bin(ast_greater, $1, $3);
- }
- | relational_expression LE_OP shift_expression
- {
- $$ = new ast_expression_bin(ast_lequal, $1, $3);
- }
- | relational_expression GE_OP shift_expression
- {
- $$ = new ast_expression_bin(ast_gequal, $1, $3);
- }
- ;
-
-equality_expression:
- relational_expression
- | equality_expression EQ_OP relational_expression
- {
- $$ = new ast_expression_bin(ast_equal, $1, $3);
- }
- | equality_expression NE_OP relational_expression
- {
- $$ = new ast_expression_bin(ast_nequal, $1, $3);
- }
- ;
-
-and_expression:
- equality_expression
- | and_expression '&' equality_expression
- {
- $$ = new ast_expression_bin(ast_bit_or, $1, $3);
- }
- ;
-
-exclusive_or_expression:
- and_expression
- | exclusive_or_expression '^' and_expression
- {
- $$ = new ast_expression_bin(ast_bit_xor, $1, $3);
- }
- ;
-
-inclusive_or_expression:
- exclusive_or_expression
- | inclusive_or_expression '|' exclusive_or_expression
- {
- $$ = new ast_expression_bin(ast_bit_or, $1, $3);
- }
- ;
-
-logical_and_expression:
- inclusive_or_expression
- | logical_and_expression AND_OP inclusive_or_expression
- {
- $$ = new ast_expression_bin(ast_logic_and, $1, $3);
- }
- ;
-
-logical_xor_expression:
- logical_and_expression
- | logical_xor_expression XOR_OP logical_and_expression
- {
- $$ = new ast_expression_bin(ast_logic_xor, $1, $3);
- }
- ;
-
-logical_or_expression:
- logical_xor_expression
- | logical_or_expression OR_OP logical_xor_expression
- {
- $$ = new ast_expression_bin(ast_logic_or, $1, $3);
- }
- ;
-
-conditional_expression:
- logical_or_expression
- | logical_or_expression '?' expression ':' assignment_expression
- {
- $$ = new ast_expression(ast_conditional, $1, $3, $5);
- }
- ;
-
-assignment_expression:
- conditional_expression
- | unary_expression assignment_operator assignment_expression
- {
- $$ = new ast_expression($2, $1, $3, NULL);
- }
- ;
-
-assignment_operator:
- '=' { $$ = ast_assign; }
- | MUL_ASSIGN { $$ = ast_mul_assign; }
- | DIV_ASSIGN { $$ = ast_div_assign; }
- | MOD_ASSIGN { $$ = ast_mod_assign; }
- | ADD_ASSIGN { $$ = ast_add_assign; }
- | SUB_ASSIGN { $$ = ast_sub_assign; }
- | LEFT_ASSIGN { $$ = ast_ls_assign; }
- | RIGHT_ASSIGN { $$ = ast_rs_assign; }
- | AND_ASSIGN { $$ = ast_and_assign; }
- | XOR_ASSIGN { $$ = ast_xor_assign; }
- | OR_ASSIGN { $$ = ast_or_assign; }
- ;
-
-expression:
- assignment_expression
- {
- $$ = $1;
- }
- | expression ',' assignment_expression
- {
- if ($1->oper != ast_sequence) {
- $$ = new ast_expression(ast_sequence, NULL, NULL, NULL);
- insert_at_tail(& $$->expressions, $1);
- } else {
- $$ = $1;
- }
-
- insert_at_tail(& $$->expressions, $3);
- }
- ;
-
-constant_expression:
- conditional_expression
- ;
-
-declaration:
- function_prototype ';'
- {
- $$ = $1;
- }
- | init_declarator_list ';'
- {
- $$ = $1;
- }
- | PRECISION precision_qualifier type_specifier_no_prec ';'
- {
- $$ = NULL; /* FINISHME */
- }
- ;
-
-function_prototype:
- function_declarator ')'
- ;
-
-function_declarator:
- function_header
- | function_header_with_parameters
- ;
-
-function_header_with_parameters:
- function_header parameter_declaration
- {
- $$ = $1;
- insert_at_head(& $$->parameters,
- (struct simple_node *) $2);
- }
- | function_header_with_parameters ',' parameter_declaration
- {
- $$ = $1;
- insert_at_head(& $$->parameters,
- (struct simple_node *) $3);
- }
- ;
-
-function_header:
- fully_specified_type IDENTIFIER '('
- {
- $$ = new ast_function();
- $$->return_type = $1;
- $$->identifier = $2;
- }
- ;
-
-parameter_declarator:
- type_specifier IDENTIFIER
- {
- $$ = new ast_parameter_declarator();
- $$->type = new ast_fully_specified_type();
- $$->type->specifier = $1;
- $$->identifier = $2;
- }
- | type_specifier IDENTIFIER '[' constant_expression ']'
- {
- $$ = new ast_parameter_declarator();
- $$->type = new ast_fully_specified_type();
- $$->type->specifier = $1;
- $$->identifier = $2;
- $$->is_array = true;
- $$->array_size = $4;
- }
- ;
-
-parameter_declaration:
- parameter_type_qualifier parameter_qualifier parameter_declarator
- {
- $1.i |= $2.i;
-
- $$ = $3;
- $$->type->qualifier = $1.q;
- }
- | parameter_qualifier parameter_declarator
- {
- $$ = $2;
- $$->type->qualifier = $1.q;
- }
- | parameter_type_qualifier parameter_qualifier parameter_type_specifier
- {
- $1.i |= $2.i;
-
- $$ = new ast_parameter_declarator();
- $$->type = new ast_fully_specified_type();
- $$->type->qualifier = $1.q;
- $$->type->specifier = $3;
- }
- | parameter_qualifier parameter_type_specifier
- {
- $$ = new ast_parameter_declarator();
- $$->type = new ast_fully_specified_type();
- $$->type->qualifier = $1.q;
- $$->type->specifier = $2;
- }
- ;
-
-parameter_qualifier:
- /* empty */ { $$.i = 0; }
- | IN { $$.i = 0; $$.q.in = 1; }
- | OUT { $$.i = 0; $$.q.out = 1; }
- | INOUT { $$.i = 0; $$.q.in = 1; $$.q.out = 1; }
- ;
-
-parameter_type_specifier:
- type_specifier
- ;
-
-init_declarator_list:
- single_declaration
- | init_declarator_list ',' IDENTIFIER
- {
- ast_declaration *decl = new ast_declaration($3, false, NULL, NULL);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | init_declarator_list ',' IDENTIFIER '[' ']'
- {
- ast_declaration *decl = new ast_declaration($3, true, NULL, NULL);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | init_declarator_list ',' IDENTIFIER '[' constant_expression ']'
- {
- ast_declaration *decl = new ast_declaration($3, true, $5, NULL);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | init_declarator_list ',' IDENTIFIER '[' ']' '=' initializer
- {
- ast_declaration *decl = new ast_declaration($3, true, NULL, $7);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | init_declarator_list ',' IDENTIFIER '[' constant_expression ']' '=' initializer
- {
- ast_declaration *decl = new ast_declaration($3, true, $5, $8);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | init_declarator_list ',' IDENTIFIER '=' initializer
- {
- ast_declaration *decl = new ast_declaration($3, false, NULL, $5);
-
- $$ = $1;
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- ;
-
- // Grammar Note: No 'enum', or 'typedef'.
-single_declaration:
- fully_specified_type
- {
- $$ = new ast_declarator_list($1);
- }
- | fully_specified_type IDENTIFIER
- {
- ast_declaration *decl = new ast_declaration($2, false, NULL, NULL);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | fully_specified_type IDENTIFIER '[' ']'
- {
- ast_declaration *decl = new ast_declaration($2, true, NULL, NULL);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | fully_specified_type IDENTIFIER '[' constant_expression ']'
- {
- ast_declaration *decl = new ast_declaration($2, true, $4, NULL);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | fully_specified_type IDENTIFIER '[' ']' '=' initializer
- {
- ast_declaration *decl = new ast_declaration($2, true, NULL, $6);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | fully_specified_type IDENTIFIER '[' constant_expression ']' '=' initializer
- {
- ast_declaration *decl = new ast_declaration($2, true, $4, $7);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | fully_specified_type IDENTIFIER '=' initializer
- {
- ast_declaration *decl = new ast_declaration($2, false, NULL, $4);
-
- $$ = new ast_declarator_list($1);
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- | INVARIANT IDENTIFIER // Vertex only.
- {
- ast_declaration *decl = new ast_declaration($2, false, NULL, NULL);
-
- $$ = new ast_declarator_list(NULL);
- $$->invariant = true;
-
- insert_at_tail(& $$->declarations,
- (struct simple_node *) decl);
- }
- ;
-
-fully_specified_type:
- type_specifier
- {
- $$ = new ast_fully_specified_type();
- $$->specifier = $1;
- }
- | type_qualifier type_specifier
- {
- $$ = new ast_fully_specified_type();
- $$->qualifier = $1.q;
- $$->specifier = $2;
- }
- ;
-
-interpolation_qualifier:
- SMOOTH { $$.i = 0; $$.q.smooth = 1; }
- | FLAT { $$.i = 0; $$.q.flat = 1; }
- | NOPERSPECTIVE { $$.i = 0; $$.q.noperspective = 1; }
- ;
-
-parameter_type_qualifier:
- CONST { $$.i = 0; $$.q.constant = 1; }
- ;
-
-type_qualifier:
- storage_qualifier
- | interpolation_qualifier type_qualifier
- {
- $$.i = $1.i | $2.i;
- }
- | INVARIANT type_qualifier
- {
- $$ = $2;
- $$.q.invariant = 1;
- }
- ;
-
-storage_qualifier:
- CONST { $$.i = 0; $$.q.constant = 1; }
- | ATTRIBUTE { $$.i = 0; $$.q.attribute = 1; }
- | VARYING { $$.i = 0; $$.q.varying = 1; }
- | CENTROID VARYING { $$.i = 0; $$.q.centroid = 1; $$.q.varying = 1; }
- | IN { $$.i = 0; $$.q.in = 1; }
- | OUT { $$.i = 0; $$.q.out = 1; }
- | CENTROID IN { $$.i = 0; $$.q.centroid = 1; $$.q.in = 1; }
- | CENTROID OUT { $$.i = 0; $$.q.centroid = 1; $$.q.out = 1; }
- | UNIFORM { $$.i = 0; $$.q.uniform = 1; }
- ;
-
-type_specifier:
- type_specifier_no_prec
- | precision_qualifier type_specifier_no_prec
- {
- $$ = $2;
- $$->precision = $1;
- }
- ;
-
-type_specifier_no_prec:
- type_specifier_nonarray
- | type_specifier_nonarray '[' ']'
- {
- $$ = $1;
- $$->is_array = true;
- $$->array_size = NULL;
- }
- | type_specifier_nonarray '[' constant_expression ']'
- {
- $$ = $1;
- $$->is_array = true;
- $$->array_size = $3;
- }
- ;
-
-type_specifier_nonarray:
- basic_type_specifier_nonarray
- {
- $$ = new ast_type_specifier($1);
- }
- | struct_specifier
- {
- $$ = new ast_type_specifier(ast_struct);
- $$->structure = $1;
- }
- | TYPE_NAME
- {
- $$ = new ast_type_specifier(ast_type_name);
- $$->type_name = $1;
- }
- ;
-
-basic_type_specifier_nonarray:
- VOID { $$ = ast_void; }
- | FLOAT { $$ = ast_float; }
- | INT { $$ = ast_int; }
- | UINT { $$ = ast_uint; }
- | BOOL { $$ = ast_bool; }
- | VEC2 { $$ = ast_vec2; }
- | VEC3 { $$ = ast_vec3; }
- | VEC4 { $$ = ast_vec4; }
- | BVEC2 { $$ = ast_bvec2; }
- | BVEC3 { $$ = ast_bvec3; }
- | BVEC4 { $$ = ast_bvec4; }
- | IVEC2 { $$ = ast_ivec2; }
- | IVEC3 { $$ = ast_ivec3; }
- | IVEC4 { $$ = ast_ivec4; }
- | UVEC2 { $$ = ast_uvec2; }
- | UVEC3 { $$ = ast_uvec3; }
- | UVEC4 { $$ = ast_uvec4; }
- | MAT2 { $$ = ast_mat2; }
- | MAT3 { $$ = ast_mat3; }
- | MAT4 { $$ = ast_mat4; }
- | MAT2X2 { $$ = ast_mat2; }
- | MAT2X3 { $$ = ast_mat2x3; }
- | MAT2X4 { $$ = ast_mat2x4; }
- | MAT3X2 { $$ = ast_mat3x2; }
- | MAT3X3 { $$ = ast_mat3; }
- | MAT3X4 { $$ = ast_mat3x4; }
- | MAT4X2 { $$ = ast_mat4x2; }
- | MAT4X3 { $$ = ast_mat4x3; }
- | MAT4X4 { $$ = ast_mat4; }
- | SAMPLER1D { $$ = ast_sampler1d; }
- | SAMPLER2D { $$ = ast_sampler2d; }
- | SAMPLER3D { $$ = ast_sampler3d; }
- | SAMPLERCUBE { $$ = ast_samplercube; }
- | SAMPLER1DSHADOW { $$ = ast_sampler1dshadow; }
- | SAMPLER2DSHADOW { $$ = ast_sampler2dshadow; }
- | SAMPLERCUBESHADOW { $$ = ast_samplercubeshadow; }
- | SAMPLER1DARRAY { $$ = ast_sampler1darray; }
- | SAMPLER2DARRAY { $$ = ast_sampler2darray; }
- | SAMPLER1DARRAYSHADOW { $$ = ast_sampler1darrayshadow; }
- | SAMPLER2DARRAYSHADOW { $$ = ast_sampler2darrayshadow; }
- | ISAMPLER1D { $$ = ast_isampler1d; }
- | ISAMPLER2D { $$ = ast_isampler2d; }
- | ISAMPLER3D { $$ = ast_isampler3d; }
- | ISAMPLERCUBE { $$ = ast_isamplercube; }
- | ISAMPLER1DARRAY { $$ = ast_isampler1darray; }
- | ISAMPLER2DARRAY { $$ = ast_isampler2darray; }
- | USAMPLER1D { $$ = ast_usampler1d; }
- | USAMPLER2D { $$ = ast_usampler2d; }
- | USAMPLER3D { $$ = ast_usampler3d; }
- | USAMPLERCUBE { $$ = ast_usamplercube; }
- | USAMPLER1DARRAY { $$ = ast_usampler1darray; }
- | USAMPLER2DARRAY { $$ = ast_usampler2darray; }
- ;
-
-precision_qualifier:
- HIGH_PRECISION { $$ = ast_precision_high; }
- | MEDIUM_PRECISION { $$ = ast_precision_medium; }
- | LOW_PRECISION { $$ = ast_precision_low; }
- ;
-
-struct_specifier:
- STRUCT IDENTIFIER '{' struct_declaration_list '}'
- {
- $$ = new ast_struct_specifier($2, $4);
-
- _mesa_symbol_table_add_symbol(state->symbols, 0, $2, $$);
- }
- | STRUCT '{' struct_declaration_list '}'
- {
- $$ = new ast_struct_specifier(NULL, $3);
- }
- ;
-
-struct_declaration_list:
- struct_declaration
- {
- $$ = (struct ast_node *) $1;
- }
- | struct_declaration_list struct_declaration
- {
- $$ = (struct ast_node *) $1;
- insert_at_tail((struct simple_node *) $$,
- (struct simple_node *) $2);
- }
- ;
-
-struct_declaration:
- type_specifier struct_declarator_list ';'
- {
- ast_fully_specified_type *type = new ast_fully_specified_type();
-
- type->specifier = $1;
- $$ = new ast_declarator_list(type);
-
- insert_at_tail((struct simple_node *) $2,
- & $$->declarations);
- }
- ;
-
-struct_declarator_list:
- struct_declarator
- | struct_declarator_list ',' struct_declarator
- {
- $$ = $1;
- insert_at_tail((struct simple_node *) $$,
- (struct simple_node *) $3);
- }
- ;
-
-struct_declarator:
- IDENTIFIER
- {
- $$ = new ast_declaration($1, false, NULL, NULL);
- }
- | IDENTIFIER '[' constant_expression ']'
- {
- $$ = new ast_declaration($1, true, $3, NULL);
- }
- ;
-
-initializer:
- assignment_expression
- ;
-
-declaration_statement:
- declaration
- ;
-
- // Grammar Note: labeled statements for SWITCH only; 'goto' is not
- // supported.
-statement:
- statement_matched
- | statement_unmatched
- ;
-
-statement_matched:
- compound_statement { $$ = (struct ast_node *) $1; }
- | simple_statement
- ;
-
-statement_unmatched:
- selection_statement_unmatched
- ;
-
-simple_statement:
- declaration_statement
- | expression_statement
- | selection_statement_matched
- | switch_statement { $$ = NULL; }
- | case_label { $$ = NULL; }
- | iteration_statement
- | jump_statement
- ;
-
-compound_statement:
- '{' '}'
- {
- $$ = new ast_compound_statement(true, NULL);
- }
- | '{' statement_list '}'
- {
- $$ = new ast_compound_statement(true, $2);
- }
- ;
-
-statement_no_new_scope:
- compound_statement_no_new_scope { $$ = (struct ast_node *) $1; }
- | simple_statement
- ;
-
-compound_statement_no_new_scope:
- '{' '}'
- {
- $$ = new ast_compound_statement(false, NULL);
- }
- | '{' statement_list '}'
- {
- $$ = new ast_compound_statement(false, $2);
- }
- ;
-
-statement_list:
- statement
- {
- if ($1 == NULL) {
- _mesa_glsl_error(& @1, state, "<nil> statement\n");
- assert($1 != NULL);
- }
-
- $$ = $1;
- make_empty_list((struct simple_node *) $$);
- }
- | statement_list statement
- {
- if ($2 == NULL) {
- _mesa_glsl_error(& @2, state, "<nil> statement\n");
- assert($2 != NULL);
- }
- $$ = $1;
- insert_at_tail((struct simple_node *) $$,
- (struct simple_node *) $2);
- }
- ;
-
-expression_statement:
- ';'
- {
- $$ = new ast_expression_statement(NULL);
- }
- | expression ';'
- {
- $$ = new ast_expression_statement($1);
- }
- ;
-
-selection_statement_matched:
- IF '(' expression ')' statement_matched ELSE statement_matched
- {
- $$ = new ast_selection_statement($3, $5, $7);
- }
- ;
-
-selection_statement_unmatched:
- IF '(' expression ')' statement_matched
- {
- $$ = new ast_selection_statement($3, $5, NULL);
- }
- | IF '(' expression ')' statement_unmatched
- {
- $$ = new ast_selection_statement($3, $5, NULL);
- }
- | IF '(' expression ')' statement_matched ELSE statement_unmatched
- {
- $$ = new ast_selection_statement($3, $5, $7);
- }
- ;
-
-condition:
- expression
- {
- $$ = (struct ast_node *) $1;
- }
- | fully_specified_type IDENTIFIER '=' initializer
- {
- ast_declaration *decl = new ast_declaration($2, false, NULL, $4);
- ast_declarator_list *declarator = new ast_declarator_list($1);
-
- insert_at_tail(& declarator->declarations,
- (struct simple_node *) decl);
-
- $$ = declarator;
- }
- ;
-
-switch_statement:
- SWITCH '(' expression ')' compound_statement
- ;
-
-case_label:
- CASE expression ':'
- | DEFAULT ':'
- ;
-
-iteration_statement:
- WHILE '(' condition ')' statement_no_new_scope
- {
- $$ = new ast_iteration_statement(ast_iteration_statement::ast_while,
- NULL, $3, NULL, $5);
- }
- | DO statement WHILE '(' expression ')' ';'
- {
- $$ = new ast_iteration_statement(ast_iteration_statement::ast_do_while,
- NULL, $5, NULL, $2);
- }
- | FOR '(' for_init_statement for_rest_statement ')' statement_no_new_scope
- {
- $$ = new ast_iteration_statement(ast_iteration_statement::ast_for,
- $3, $4.cond, $4.rest, $6);
- }
- ;
-
-for_init_statement:
- expression_statement
- | declaration_statement
- ;
-
-conditionopt:
- condition
- | /* empty */
- {
- $$ = NULL;
- }
- ;
-
-for_rest_statement:
- conditionopt ';'
- {
- $$.cond = $1;
- $$.rest = NULL;
- }
- | conditionopt ';' expression
- {
- $$.cond = $1;
- $$.rest = $3;
- }
- ;
-
- // Grammar Note: No 'goto'. Gotos are not supported.
-jump_statement:
- CONTINUE ';'
- {
- $$ = new ast_jump_statement(ast_jump_statement::ast_continue, NULL);
- }
- | BREAK ';'
- {
- $$ = new ast_jump_statement(ast_jump_statement::ast_break, NULL);
- }
- | RETURN ';'
- {
- $$ = new ast_jump_statement(ast_jump_statement::ast_return, NULL);
- }
- | RETURN expression ';'
- {
- $$ = new ast_jump_statement(ast_jump_statement::ast_return, $2);
- }
- | DISCARD ';' // Fragment shader only.
- {
- $$ = new ast_jump_statement(ast_jump_statement::ast_discard, NULL);
- }
- ;
-
-external_declaration:
- function_definition { $$ = $1; }
- | declaration { $$ = $1; }
- ;
-
-function_definition:
- function_prototype compound_statement_no_new_scope
- {
- $$ = new ast_function_definition();
- $$->prototype = $1;
- $$->body = $2;
- }
- ;
--- /dev/null
+%{
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "symbol_table.h"
+#include "glsl_types.h"
+
+#define YYLEX_PARAM state->scanner
+
+%}
+
+%pure-parser
+%locations
+%error-verbose
+
+%lex-param {void *scanner}
+%parse-param {struct _mesa_glsl_parse_state *state}
+%name-prefix "_mesa_glsl_"
+
+%union {
+ int n;
+ float real;
+ char *identifier;
+
+ union {
+ struct ast_type_qualifier q;
+ unsigned i;
+ } type_qualifier;
+
+ struct ast_node *node;
+ struct ast_type_specifier *type_specifier;
+ struct ast_fully_specified_type *fully_specified_type;
+ struct ast_function *function;
+ struct ast_parameter_declarator *parameter_declarator;
+ struct ast_function_definition *function_definition;
+ struct ast_compound_statement *compound_statement;
+ struct ast_expression *expression;
+ struct ast_declarator_list *declarator_list;
+ struct ast_struct_specifier *struct_specifier;
+ struct ast_declaration *declaration;
+
+ struct {
+ struct ast_node *cond;
+ struct ast_expression *rest;
+ } for_rest_statement;
+}
+
+%token ATTRIBUTE CONST BOOL FLOAT INT UINT
+%token BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN SWITCH CASE DEFAULT
+%token BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 UVEC2 UVEC3 UVEC4 VEC2 VEC3 VEC4
+%token MAT2 MAT3 MAT4 CENTROID IN OUT INOUT UNIFORM VARYING
+%token NOPERSPECTIVE FLAT SMOOTH
+%token MAT2X2 MAT2X3 MAT2X4
+%token MAT3X2 MAT3X3 MAT3X4
+%token MAT4X2 MAT4X3 MAT4X4
+%token SAMPLER1D SAMPLER2D SAMPLER3D SAMPLERCUBE SAMPLER1DSHADOW SAMPLER2DSHADOW
+%token SAMPLERCUBESHADOW SAMPLER1DARRAY SAMPLER2DARRAY SAMPLER1DARRAYSHADOW
+%token SAMPLER2DARRAYSHADOW ISAMPLER1D ISAMPLER2D ISAMPLER3D ISAMPLERCUBE
+%token ISAMPLER1DARRAY ISAMPLER2DARRAY USAMPLER1D USAMPLER2D USAMPLER3D
+%token USAMPLERCUBE USAMPLER1DARRAY USAMPLER2DARRAY
+%token STRUCT VOID WHILE
+%token <identifier> IDENTIFIER TYPE_NAME
+%token <real> FLOATCONSTANT
+%token <n> INTCONSTANT UINTCONSTANT BOOLCONSTANT
+%token <identifier> FIELD_SELECTION
+%token LEFT_OP RIGHT_OP
+%token INC_OP DEC_OP LE_OP GE_OP EQ_OP NE_OP
+%token AND_OP OR_OP XOR_OP MUL_ASSIGN DIV_ASSIGN ADD_ASSIGN
+%token MOD_ASSIGN LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN
+%token SUB_ASSIGN
+%token INVARIANT
+%token HIGH_PRECISION MEDIUM_PRECISION LOW_PRECISION PRECISION
+
+%token VERSION EXTENSION LINE PRAGMA COLON EOL INTERFACE OUTPUT
+
+ /* Reserved words that are not actually used in the grammar.
+ */
+%token ASM CLASS UNION ENUM TYPEDEF TEMPLATE THIS PACKED GOTO
+%token INLINE NOINLINE VOLATILE PUBLIC STATIC EXTERN EXTERNAL
+%token LONG SHORT DOUBLE HALF FIXED UNSIGNED INPUT OUPTUT
+%token HVEC2 HVEC3 HVEC4 DVEC2 DVEC3 DVEC4 FVEC2 FVEC3 FVEC4
+%token SAMPLER2DRECT SAMPLER3DRECT SAMPLER2DRECTSHADOW
+%token SIZEOF CAST NAMESPACE USING LOWP MEDIUMP HIGHP
+
+%type <identifier> variable_identifier
+%type <node> statement
+%type <node> statement_list
+%type <node> simple_statement
+%type <node> statement_matched
+%type <node> statement_unmatched
+%type <n> precision_qualifier
+%type <type_qualifier> type_qualifier
+%type <type_qualifier> storage_qualifier
+%type <type_qualifier> interpolation_qualifier
+%type <type_specifier> type_specifier
+%type <type_specifier> type_specifier_no_prec
+%type <type_specifier> type_specifier_nonarray
+%type <n> basic_type_specifier_nonarray
+%type <fully_specified_type> fully_specified_type
+%type <function> function_prototype
+%type <function> function_header
+%type <function> function_header_with_parameters
+%type <function> function_declarator
+%type <parameter_declarator> parameter_declarator
+%type <parameter_declarator> parameter_declaration
+%type <type_qualifier> parameter_qualifier
+%type <type_qualifier> parameter_type_qualifier
+%type <type_specifier> parameter_type_specifier
+%type <function_definition> function_definition
+%type <compound_statement> compound_statement_no_new_scope
+%type <compound_statement> compound_statement
+%type <node> statement_no_new_scope
+%type <node> expression_statement
+%type <expression> expression
+%type <expression> primary_expression
+%type <expression> assignment_expression
+%type <expression> conditional_expression
+%type <expression> logical_or_expression
+%type <expression> logical_xor_expression
+%type <expression> logical_and_expression
+%type <expression> inclusive_or_expression
+%type <expression> exclusive_or_expression
+%type <expression> and_expression
+%type <expression> equality_expression
+%type <expression> relational_expression
+%type <expression> shift_expression
+%type <expression> additive_expression
+%type <expression> multiplicative_expression
+%type <expression> unary_expression
+%type <expression> constant_expression
+%type <expression> integer_expression
+%type <expression> postfix_expression
+%type <expression> function_call_header_with_parameters
+%type <expression> function_call_header_no_parameters
+%type <expression> function_call_header
+%type <expression> function_call_generic
+%type <expression> function_call_or_method
+%type <expression> function_call
+%type <n> assignment_operator
+%type <n> unary_operator
+%type <node> function_identifier
+%type <node> external_declaration
+%type <declarator_list> init_declarator_list
+%type <declarator_list> single_declaration
+%type <expression> initializer
+%type <node> declaration
+%type <node> declaration_statement
+%type <node> jump_statement
+%type <struct_specifier> struct_specifier
+%type <node> struct_declaration_list
+%type <declarator_list> struct_declaration
+%type <declaration> struct_declarator
+%type <declaration> struct_declarator_list
+%type <node> selection_statement_matched
+%type <node> selection_statement_unmatched
+%type <node> iteration_statement
+%type <node> condition
+%type <node> conditionopt
+%type <node> for_init_statement
+%type <for_rest_statement> for_rest_statement
+%%
+
+translation_unit:
+ version_statement
+ {
+ _mesa_glsl_initialize_types(state);
+ }
+ external_declaration_list
+ |
+ {
+ state->language_version = 110;
+ _mesa_glsl_initialize_types(state);
+ }
+ external_declaration_list
+ ;
+
+version_statement:
+ VERSION INTCONSTANT EOL
+ {
+ switch ($2) {
+ case 110:
+ case 120:
+ case 130:
+ /* FINISHME: Check against implementation support versions. */
+ state->language_version = $2;
+ break;
+ default:
+ _mesa_glsl_error(& @2, state, "Shading language version"
+ "%u is not supported\n", $2);
+ break;
+ }
+ }
+ ;
+
+external_declaration_list:
+ external_declaration
+ {
+ insert_at_tail(& state->translation_unit,
+ (struct simple_node *) $1);
+ }
+ | external_declaration_list external_declaration
+ {
+ insert_at_tail(& state->translation_unit,
+ (struct simple_node *) $2);
+ }
+ ;
+
+variable_identifier:
+ IDENTIFIER
+ ;
+
+primary_expression:
+ variable_identifier
+ {
+ $$ = new ast_expression(ast_identifier, NULL, NULL, NULL);
+ $$->primary_expression.identifier = $1;
+ }
+ | INTCONSTANT
+ {
+ $$ = new ast_expression(ast_int_constant, NULL, NULL, NULL);
+ $$->primary_expression.int_constant = $1;
+ }
+ | UINTCONSTANT
+ {
+ $$ = new ast_expression(ast_uint_constant, NULL, NULL, NULL);
+ $$->primary_expression.uint_constant = $1;
+ }
+ | FLOATCONSTANT
+ {
+ $$ = new ast_expression(ast_float_constant, NULL, NULL, NULL);
+ $$->primary_expression.float_constant = $1;
+ }
+ | BOOLCONSTANT
+ {
+ $$ = new ast_expression(ast_bool_constant, NULL, NULL, NULL);
+ $$->primary_expression.bool_constant = $1;
+ }
+ | '(' expression ')'
+ {
+ $$ = $2;
+ }
+ ;
+
+postfix_expression:
+ primary_expression
+ | postfix_expression '[' integer_expression ']'
+ {
+ $$ = new ast_expression(ast_array_index, $1, $3, NULL);
+ }
+ | function_call
+ {
+ $$ = $1;
+ }
+ | postfix_expression '.' IDENTIFIER
+ {
+ $$ = new ast_expression(ast_field_selection, $1, NULL, NULL);
+ $$->primary_expression.identifier = $3;
+ }
+ | postfix_expression INC_OP
+ {
+ $$ = new ast_expression(ast_post_inc, $1, NULL, NULL);
+ }
+ | postfix_expression DEC_OP
+ {
+ $$ = new ast_expression(ast_post_dec, $1, NULL, NULL);
+ }
+ ;
+
+integer_expression:
+ expression
+ ;
+
+function_call:
+ function_call_or_method
+ ;
+
+function_call_or_method:
+ function_call_generic
+ | postfix_expression '.' function_call_generic
+ {
+ $$ = new ast_expression(ast_field_selection, $1, $3, NULL);
+ }
+ ;
+
+function_call_generic:
+ function_call_header_with_parameters ')'
+ | function_call_header_no_parameters ')'
+ ;
+
+function_call_header_no_parameters:
+ function_call_header VOID
+ | function_call_header
+ ;
+
+function_call_header_with_parameters:
+ function_call_header assignment_expression
+ {
+ $$ = $1;
+ $$->subexpressions[1] = $2;
+ }
+ | function_call_header_with_parameters ',' assignment_expression
+ {
+ $$ = $1;
+ insert_at_tail((struct simple_node *) $$->subexpressions[1],
+ (struct simple_node *) $3);
+ }
+ ;
+
+ // Grammar Note: Constructors look like functions, but lexical
+ // analysis recognized most of them as keywords. They are now
+ // recognized through "type_specifier".
+function_call_header:
+ function_identifier '('
+ {
+ $$ = new ast_expression(ast_function_call,
+ (struct ast_expression *) $1,
+ NULL, NULL);
+ }
+ ;
+
+function_identifier:
+ type_specifier
+ {
+ $$ = (struct ast_node *) $1;
+ }
+ | IDENTIFIER
+ {
+ ast_expression *expr =
+ new ast_expression(ast_identifier, NULL, NULL, NULL);
+ expr->primary_expression.identifier = $1;
+
+ $$ = (struct ast_node *) expr;
+ }
+ | FIELD_SELECTION
+ {
+ ast_expression *expr =
+ new ast_expression(ast_identifier, NULL, NULL, NULL);
+ expr->primary_expression.identifier = $1;
+
+ $$ = (struct ast_node *) expr;
+ }
+ ;
+
+ // Grammar Note: No traditional style type casts.
+unary_expression:
+ postfix_expression
+ | INC_OP unary_expression
+ {
+ $$ = new ast_expression(ast_pre_inc, $2, NULL, NULL);
+ }
+ | DEC_OP unary_expression
+ {
+ $$ = new ast_expression(ast_pre_dec, $2, NULL, NULL);
+ }
+ | unary_operator unary_expression
+ {
+ $$ = new ast_expression($1, $2, NULL, NULL);
+ }
+ ;
+
+ // Grammar Note: No '*' or '&' unary ops. Pointers are not supported.
+unary_operator:
+ '+' { $$ = ast_plus; }
+ | '-' { $$ = ast_neg; }
+ | '!' { $$ = ast_logic_not; }
+ | '~' { $$ = ast_bit_not; }
+ ;
+
+multiplicative_expression:
+ unary_expression
+ | multiplicative_expression '*' unary_expression
+ {
+ $$ = new ast_expression_bin(ast_mul, $1, $3);
+ }
+ | multiplicative_expression '/' unary_expression
+ {
+ $$ = new ast_expression_bin(ast_div, $1, $3);
+ }
+ | multiplicative_expression '%' unary_expression
+ {
+ $$ = new ast_expression_bin(ast_mod, $1, $3);
+ }
+ ;
+
+additive_expression:
+ multiplicative_expression
+ | additive_expression '+' multiplicative_expression
+ {
+ $$ = new ast_expression_bin(ast_add, $1, $3);
+ }
+ | additive_expression '-' multiplicative_expression
+ {
+ $$ = new ast_expression_bin(ast_sub, $1, $3);
+ }
+ ;
+
+shift_expression:
+ additive_expression
+ | shift_expression LEFT_OP additive_expression
+ {
+ $$ = new ast_expression_bin(ast_lshift, $1, $3);
+ }
+ | shift_expression RIGHT_OP additive_expression
+ {
+ $$ = new ast_expression_bin(ast_rshift, $1, $3);
+ }
+ ;
+
+relational_expression:
+ shift_expression
+ | relational_expression '<' shift_expression
+ {
+ $$ = new ast_expression_bin(ast_less, $1, $3);
+ }
+ | relational_expression '>' shift_expression
+ {
+ $$ = new ast_expression_bin(ast_greater, $1, $3);
+ }
+ | relational_expression LE_OP shift_expression
+ {
+ $$ = new ast_expression_bin(ast_lequal, $1, $3);
+ }
+ | relational_expression GE_OP shift_expression
+ {
+ $$ = new ast_expression_bin(ast_gequal, $1, $3);
+ }
+ ;
+
+equality_expression:
+ relational_expression
+ | equality_expression EQ_OP relational_expression
+ {
+ $$ = new ast_expression_bin(ast_equal, $1, $3);
+ }
+ | equality_expression NE_OP relational_expression
+ {
+ $$ = new ast_expression_bin(ast_nequal, $1, $3);
+ }
+ ;
+
+and_expression:
+ equality_expression
+ | and_expression '&' equality_expression
+ {
+ $$ = new ast_expression_bin(ast_bit_or, $1, $3);
+ }
+ ;
+
+exclusive_or_expression:
+ and_expression
+ | exclusive_or_expression '^' and_expression
+ {
+ $$ = new ast_expression_bin(ast_bit_xor, $1, $3);
+ }
+ ;
+
+inclusive_or_expression:
+ exclusive_or_expression
+ | inclusive_or_expression '|' exclusive_or_expression
+ {
+ $$ = new ast_expression_bin(ast_bit_or, $1, $3);
+ }
+ ;
+
+logical_and_expression:
+ inclusive_or_expression
+ | logical_and_expression AND_OP inclusive_or_expression
+ {
+ $$ = new ast_expression_bin(ast_logic_and, $1, $3);
+ }
+ ;
+
+logical_xor_expression:
+ logical_and_expression
+ | logical_xor_expression XOR_OP logical_and_expression
+ {
+ $$ = new ast_expression_bin(ast_logic_xor, $1, $3);
+ }
+ ;
+
+logical_or_expression:
+ logical_xor_expression
+ | logical_or_expression OR_OP logical_xor_expression
+ {
+ $$ = new ast_expression_bin(ast_logic_or, $1, $3);
+ }
+ ;
+
+conditional_expression:
+ logical_or_expression
+ | logical_or_expression '?' expression ':' assignment_expression
+ {
+ $$ = new ast_expression(ast_conditional, $1, $3, $5);
+ }
+ ;
+
+assignment_expression:
+ conditional_expression
+ | unary_expression assignment_operator assignment_expression
+ {
+ $$ = new ast_expression($2, $1, $3, NULL);
+ }
+ ;
+
+assignment_operator:
+ '=' { $$ = ast_assign; }
+ | MUL_ASSIGN { $$ = ast_mul_assign; }
+ | DIV_ASSIGN { $$ = ast_div_assign; }
+ | MOD_ASSIGN { $$ = ast_mod_assign; }
+ | ADD_ASSIGN { $$ = ast_add_assign; }
+ | SUB_ASSIGN { $$ = ast_sub_assign; }
+ | LEFT_ASSIGN { $$ = ast_ls_assign; }
+ | RIGHT_ASSIGN { $$ = ast_rs_assign; }
+ | AND_ASSIGN { $$ = ast_and_assign; }
+ | XOR_ASSIGN { $$ = ast_xor_assign; }
+ | OR_ASSIGN { $$ = ast_or_assign; }
+ ;
+
+expression:
+ assignment_expression
+ {
+ $$ = $1;
+ }
+ | expression ',' assignment_expression
+ {
+ if ($1->oper != ast_sequence) {
+ $$ = new ast_expression(ast_sequence, NULL, NULL, NULL);
+ insert_at_tail(& $$->expressions, $1);
+ } else {
+ $$ = $1;
+ }
+
+ insert_at_tail(& $$->expressions, $3);
+ }
+ ;
+
+constant_expression:
+ conditional_expression
+ ;
+
+declaration:
+ function_prototype ';'
+ {
+ $$ = $1;
+ }
+ | init_declarator_list ';'
+ {
+ $$ = $1;
+ }
+ | PRECISION precision_qualifier type_specifier_no_prec ';'
+ {
+ $$ = NULL; /* FINISHME */
+ }
+ ;
+
+function_prototype:
+ function_declarator ')'
+ ;
+
+function_declarator:
+ function_header
+ | function_header_with_parameters
+ ;
+
+function_header_with_parameters:
+ function_header parameter_declaration
+ {
+ $$ = $1;
+ insert_at_head(& $$->parameters,
+ (struct simple_node *) $2);
+ }
+ | function_header_with_parameters ',' parameter_declaration
+ {
+ $$ = $1;
+ insert_at_head(& $$->parameters,
+ (struct simple_node *) $3);
+ }
+ ;
+
+function_header:
+ fully_specified_type IDENTIFIER '('
+ {
+ $$ = new ast_function();
+ $$->return_type = $1;
+ $$->identifier = $2;
+ }
+ ;
+
+parameter_declarator:
+ type_specifier IDENTIFIER
+ {
+ $$ = new ast_parameter_declarator();
+ $$->type = new ast_fully_specified_type();
+ $$->type->specifier = $1;
+ $$->identifier = $2;
+ }
+ | type_specifier IDENTIFIER '[' constant_expression ']'
+ {
+ $$ = new ast_parameter_declarator();
+ $$->type = new ast_fully_specified_type();
+ $$->type->specifier = $1;
+ $$->identifier = $2;
+ $$->is_array = true;
+ $$->array_size = $4;
+ }
+ ;
+
+parameter_declaration:
+ parameter_type_qualifier parameter_qualifier parameter_declarator
+ {
+ $1.i |= $2.i;
+
+ $$ = $3;
+ $$->type->qualifier = $1.q;
+ }
+ | parameter_qualifier parameter_declarator
+ {
+ $$ = $2;
+ $$->type->qualifier = $1.q;
+ }
+ | parameter_type_qualifier parameter_qualifier parameter_type_specifier
+ {
+ $1.i |= $2.i;
+
+ $$ = new ast_parameter_declarator();
+ $$->type = new ast_fully_specified_type();
+ $$->type->qualifier = $1.q;
+ $$->type->specifier = $3;
+ }
+ | parameter_qualifier parameter_type_specifier
+ {
+ $$ = new ast_parameter_declarator();
+ $$->type = new ast_fully_specified_type();
+ $$->type->qualifier = $1.q;
+ $$->type->specifier = $2;
+ }
+ ;
+
+parameter_qualifier:
+ /* empty */ { $$.i = 0; }
+ | IN { $$.i = 0; $$.q.in = 1; }
+ | OUT { $$.i = 0; $$.q.out = 1; }
+ | INOUT { $$.i = 0; $$.q.in = 1; $$.q.out = 1; }
+ ;
+
+parameter_type_specifier:
+ type_specifier
+ ;
+
+init_declarator_list:
+ single_declaration
+ | init_declarator_list ',' IDENTIFIER
+ {
+ ast_declaration *decl = new ast_declaration($3, false, NULL, NULL);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' ']'
+ {
+ ast_declaration *decl = new ast_declaration($3, true, NULL, NULL);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' constant_expression ']'
+ {
+ ast_declaration *decl = new ast_declaration($3, true, $5, NULL);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' ']' '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($3, true, NULL, $7);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' constant_expression ']' '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($3, true, $5, $8);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | init_declarator_list ',' IDENTIFIER '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($3, false, NULL, $5);
+
+ $$ = $1;
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ ;
+
+ // Grammar Note: No 'enum', or 'typedef'.
+single_declaration:
+ fully_specified_type
+ {
+ $$ = new ast_declarator_list($1);
+ }
+ | fully_specified_type IDENTIFIER
+ {
+ ast_declaration *decl = new ast_declaration($2, false, NULL, NULL);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | fully_specified_type IDENTIFIER '[' ']'
+ {
+ ast_declaration *decl = new ast_declaration($2, true, NULL, NULL);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | fully_specified_type IDENTIFIER '[' constant_expression ']'
+ {
+ ast_declaration *decl = new ast_declaration($2, true, $4, NULL);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | fully_specified_type IDENTIFIER '[' ']' '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($2, true, NULL, $6);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | fully_specified_type IDENTIFIER '[' constant_expression ']' '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($2, true, $4, $7);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | fully_specified_type IDENTIFIER '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($2, false, NULL, $4);
+
+ $$ = new ast_declarator_list($1);
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ | INVARIANT IDENTIFIER // Vertex only.
+ {
+ ast_declaration *decl = new ast_declaration($2, false, NULL, NULL);
+
+ $$ = new ast_declarator_list(NULL);
+ $$->invariant = true;
+
+ insert_at_tail(& $$->declarations,
+ (struct simple_node *) decl);
+ }
+ ;
+
+fully_specified_type:
+ type_specifier
+ {
+ $$ = new ast_fully_specified_type();
+ $$->specifier = $1;
+ }
+ | type_qualifier type_specifier
+ {
+ $$ = new ast_fully_specified_type();
+ $$->qualifier = $1.q;
+ $$->specifier = $2;
+ }
+ ;
+
+interpolation_qualifier:
+ SMOOTH { $$.i = 0; $$.q.smooth = 1; }
+ | FLAT { $$.i = 0; $$.q.flat = 1; }
+ | NOPERSPECTIVE { $$.i = 0; $$.q.noperspective = 1; }
+ ;
+
+parameter_type_qualifier:
+ CONST { $$.i = 0; $$.q.constant = 1; }
+ ;
+
+type_qualifier:
+ storage_qualifier
+ | interpolation_qualifier type_qualifier
+ {
+ $$.i = $1.i | $2.i;
+ }
+ | INVARIANT type_qualifier
+ {
+ $$ = $2;
+ $$.q.invariant = 1;
+ }
+ ;
+
+storage_qualifier:
+ CONST { $$.i = 0; $$.q.constant = 1; }
+ | ATTRIBUTE { $$.i = 0; $$.q.attribute = 1; }
+ | VARYING { $$.i = 0; $$.q.varying = 1; }
+ | CENTROID VARYING { $$.i = 0; $$.q.centroid = 1; $$.q.varying = 1; }
+ | IN { $$.i = 0; $$.q.in = 1; }
+ | OUT { $$.i = 0; $$.q.out = 1; }
+ | CENTROID IN { $$.i = 0; $$.q.centroid = 1; $$.q.in = 1; }
+ | CENTROID OUT { $$.i = 0; $$.q.centroid = 1; $$.q.out = 1; }
+ | UNIFORM { $$.i = 0; $$.q.uniform = 1; }
+ ;
+
+type_specifier:
+ type_specifier_no_prec
+ | precision_qualifier type_specifier_no_prec
+ {
+ $$ = $2;
+ $$->precision = $1;
+ }
+ ;
+
+type_specifier_no_prec:
+ type_specifier_nonarray
+ | type_specifier_nonarray '[' ']'
+ {
+ $$ = $1;
+ $$->is_array = true;
+ $$->array_size = NULL;
+ }
+ | type_specifier_nonarray '[' constant_expression ']'
+ {
+ $$ = $1;
+ $$->is_array = true;
+ $$->array_size = $3;
+ }
+ ;
+
+type_specifier_nonarray:
+ basic_type_specifier_nonarray
+ {
+ $$ = new ast_type_specifier($1);
+ }
+ | struct_specifier
+ {
+ $$ = new ast_type_specifier(ast_struct);
+ $$->structure = $1;
+ }
+ | TYPE_NAME
+ {
+ $$ = new ast_type_specifier(ast_type_name);
+ $$->type_name = $1;
+ }
+ ;
+
+basic_type_specifier_nonarray:
+ VOID { $$ = ast_void; }
+ | FLOAT { $$ = ast_float; }
+ | INT { $$ = ast_int; }
+ | UINT { $$ = ast_uint; }
+ | BOOL { $$ = ast_bool; }
+ | VEC2 { $$ = ast_vec2; }
+ | VEC3 { $$ = ast_vec3; }
+ | VEC4 { $$ = ast_vec4; }
+ | BVEC2 { $$ = ast_bvec2; }
+ | BVEC3 { $$ = ast_bvec3; }
+ | BVEC4 { $$ = ast_bvec4; }
+ | IVEC2 { $$ = ast_ivec2; }
+ | IVEC3 { $$ = ast_ivec3; }
+ | IVEC4 { $$ = ast_ivec4; }
+ | UVEC2 { $$ = ast_uvec2; }
+ | UVEC3 { $$ = ast_uvec3; }
+ | UVEC4 { $$ = ast_uvec4; }
+ | MAT2 { $$ = ast_mat2; }
+ | MAT3 { $$ = ast_mat3; }
+ | MAT4 { $$ = ast_mat4; }
+ | MAT2X2 { $$ = ast_mat2; }
+ | MAT2X3 { $$ = ast_mat2x3; }
+ | MAT2X4 { $$ = ast_mat2x4; }
+ | MAT3X2 { $$ = ast_mat3x2; }
+ | MAT3X3 { $$ = ast_mat3; }
+ | MAT3X4 { $$ = ast_mat3x4; }
+ | MAT4X2 { $$ = ast_mat4x2; }
+ | MAT4X3 { $$ = ast_mat4x3; }
+ | MAT4X4 { $$ = ast_mat4; }
+ | SAMPLER1D { $$ = ast_sampler1d; }
+ | SAMPLER2D { $$ = ast_sampler2d; }
+ | SAMPLER3D { $$ = ast_sampler3d; }
+ | SAMPLERCUBE { $$ = ast_samplercube; }
+ | SAMPLER1DSHADOW { $$ = ast_sampler1dshadow; }
+ | SAMPLER2DSHADOW { $$ = ast_sampler2dshadow; }
+ | SAMPLERCUBESHADOW { $$ = ast_samplercubeshadow; }
+ | SAMPLER1DARRAY { $$ = ast_sampler1darray; }
+ | SAMPLER2DARRAY { $$ = ast_sampler2darray; }
+ | SAMPLER1DARRAYSHADOW { $$ = ast_sampler1darrayshadow; }
+ | SAMPLER2DARRAYSHADOW { $$ = ast_sampler2darrayshadow; }
+ | ISAMPLER1D { $$ = ast_isampler1d; }
+ | ISAMPLER2D { $$ = ast_isampler2d; }
+ | ISAMPLER3D { $$ = ast_isampler3d; }
+ | ISAMPLERCUBE { $$ = ast_isamplercube; }
+ | ISAMPLER1DARRAY { $$ = ast_isampler1darray; }
+ | ISAMPLER2DARRAY { $$ = ast_isampler2darray; }
+ | USAMPLER1D { $$ = ast_usampler1d; }
+ | USAMPLER2D { $$ = ast_usampler2d; }
+ | USAMPLER3D { $$ = ast_usampler3d; }
+ | USAMPLERCUBE { $$ = ast_usamplercube; }
+ | USAMPLER1DARRAY { $$ = ast_usampler1darray; }
+ | USAMPLER2DARRAY { $$ = ast_usampler2darray; }
+ ;
+
+precision_qualifier:
+ HIGH_PRECISION { $$ = ast_precision_high; }
+ | MEDIUM_PRECISION { $$ = ast_precision_medium; }
+ | LOW_PRECISION { $$ = ast_precision_low; }
+ ;
+
+struct_specifier:
+ STRUCT IDENTIFIER '{' struct_declaration_list '}'
+ {
+ $$ = new ast_struct_specifier($2, $4);
+
+ _mesa_symbol_table_add_symbol(state->symbols, 0, $2, $$);
+ }
+ | STRUCT '{' struct_declaration_list '}'
+ {
+ $$ = new ast_struct_specifier(NULL, $3);
+ }
+ ;
+
+struct_declaration_list:
+ struct_declaration
+ {
+ $$ = (struct ast_node *) $1;
+ }
+ | struct_declaration_list struct_declaration
+ {
+ $$ = (struct ast_node *) $1;
+ insert_at_tail((struct simple_node *) $$,
+ (struct simple_node *) $2);
+ }
+ ;
+
+struct_declaration:
+ type_specifier struct_declarator_list ';'
+ {
+ ast_fully_specified_type *type = new ast_fully_specified_type();
+
+ type->specifier = $1;
+ $$ = new ast_declarator_list(type);
+
+ insert_at_tail((struct simple_node *) $2,
+ & $$->declarations);
+ }
+ ;
+
+struct_declarator_list:
+ struct_declarator
+ | struct_declarator_list ',' struct_declarator
+ {
+ $$ = $1;
+ insert_at_tail((struct simple_node *) $$,
+ (struct simple_node *) $3);
+ }
+ ;
+
+struct_declarator:
+ IDENTIFIER
+ {
+ $$ = new ast_declaration($1, false, NULL, NULL);
+ }
+ | IDENTIFIER '[' constant_expression ']'
+ {
+ $$ = new ast_declaration($1, true, $3, NULL);
+ }
+ ;
+
+initializer:
+ assignment_expression
+ ;
+
+declaration_statement:
+ declaration
+ ;
+
+ // Grammar Note: labeled statements for SWITCH only; 'goto' is not
+ // supported.
+statement:
+ statement_matched
+ | statement_unmatched
+ ;
+
+statement_matched:
+ compound_statement { $$ = (struct ast_node *) $1; }
+ | simple_statement
+ ;
+
+statement_unmatched:
+ selection_statement_unmatched
+ ;
+
+simple_statement:
+ declaration_statement
+ | expression_statement
+ | selection_statement_matched
+ | switch_statement { $$ = NULL; }
+ | case_label { $$ = NULL; }
+ | iteration_statement
+ | jump_statement
+ ;
+
+compound_statement:
+ '{' '}'
+ {
+ $$ = new ast_compound_statement(true, NULL);
+ }
+ | '{' statement_list '}'
+ {
+ $$ = new ast_compound_statement(true, $2);
+ }
+ ;
+
+statement_no_new_scope:
+ compound_statement_no_new_scope { $$ = (struct ast_node *) $1; }
+ | simple_statement
+ ;
+
+compound_statement_no_new_scope:
+ '{' '}'
+ {
+ $$ = new ast_compound_statement(false, NULL);
+ }
+ | '{' statement_list '}'
+ {
+ $$ = new ast_compound_statement(false, $2);
+ }
+ ;
+
+statement_list:
+ statement
+ {
+ if ($1 == NULL) {
+ _mesa_glsl_error(& @1, state, "<nil> statement\n");
+ assert($1 != NULL);
+ }
+
+ $$ = $1;
+ make_empty_list((struct simple_node *) $$);
+ }
+ | statement_list statement
+ {
+ if ($2 == NULL) {
+ _mesa_glsl_error(& @2, state, "<nil> statement\n");
+ assert($2 != NULL);
+ }
+ $$ = $1;
+ insert_at_tail((struct simple_node *) $$,
+ (struct simple_node *) $2);
+ }
+ ;
+
+expression_statement:
+ ';'
+ {
+ $$ = new ast_expression_statement(NULL);
+ }
+ | expression ';'
+ {
+ $$ = new ast_expression_statement($1);
+ }
+ ;
+
+selection_statement_matched:
+ IF '(' expression ')' statement_matched ELSE statement_matched
+ {
+ $$ = new ast_selection_statement($3, $5, $7);
+ }
+ ;
+
+selection_statement_unmatched:
+ IF '(' expression ')' statement_matched
+ {
+ $$ = new ast_selection_statement($3, $5, NULL);
+ }
+ | IF '(' expression ')' statement_unmatched
+ {
+ $$ = new ast_selection_statement($3, $5, NULL);
+ }
+ | IF '(' expression ')' statement_matched ELSE statement_unmatched
+ {
+ $$ = new ast_selection_statement($3, $5, $7);
+ }
+ ;
+
+condition:
+ expression
+ {
+ $$ = (struct ast_node *) $1;
+ }
+ | fully_specified_type IDENTIFIER '=' initializer
+ {
+ ast_declaration *decl = new ast_declaration($2, false, NULL, $4);
+ ast_declarator_list *declarator = new ast_declarator_list($1);
+
+ insert_at_tail(& declarator->declarations,
+ (struct simple_node *) decl);
+
+ $$ = declarator;
+ }
+ ;
+
+switch_statement:
+ SWITCH '(' expression ')' compound_statement
+ ;
+
+case_label:
+ CASE expression ':'
+ | DEFAULT ':'
+ ;
+
+iteration_statement:
+ WHILE '(' condition ')' statement_no_new_scope
+ {
+ $$ = new ast_iteration_statement(ast_iteration_statement::ast_while,
+ NULL, $3, NULL, $5);
+ }
+ | DO statement WHILE '(' expression ')' ';'
+ {
+ $$ = new ast_iteration_statement(ast_iteration_statement::ast_do_while,
+ NULL, $5, NULL, $2);
+ }
+ | FOR '(' for_init_statement for_rest_statement ')' statement_no_new_scope
+ {
+ $$ = new ast_iteration_statement(ast_iteration_statement::ast_for,
+ $3, $4.cond, $4.rest, $6);
+ }
+ ;
+
+for_init_statement:
+ expression_statement
+ | declaration_statement
+ ;
+
+conditionopt:
+ condition
+ | /* empty */
+ {
+ $$ = NULL;
+ }
+ ;
+
+for_rest_statement:
+ conditionopt ';'
+ {
+ $$.cond = $1;
+ $$.rest = NULL;
+ }
+ | conditionopt ';' expression
+ {
+ $$.cond = $1;
+ $$.rest = $3;
+ }
+ ;
+
+ // Grammar Note: No 'goto'. Gotos are not supported.
+jump_statement:
+ CONTINUE ';'
+ {
+ $$ = new ast_jump_statement(ast_jump_statement::ast_continue, NULL);
+ }
+ | BREAK ';'
+ {
+ $$ = new ast_jump_statement(ast_jump_statement::ast_break, NULL);
+ }
+ | RETURN ';'
+ {
+ $$ = new ast_jump_statement(ast_jump_statement::ast_return, NULL);
+ }
+ | RETURN expression ';'
+ {
+ $$ = new ast_jump_statement(ast_jump_statement::ast_return, $2);
+ }
+ | DISCARD ';' // Fragment shader only.
+ {
+ $$ = new ast_jump_statement(ast_jump_statement::ast_discard, NULL);
+ }
+ ;
+
+external_declaration:
+ function_definition { $$ = $1; }
+ | declaration { $$ = $1; }
+ ;
+
+function_definition:
+ function_prototype compound_statement_no_new_scope
+ {
+ $$ = new ast_function_definition();
+ $$->prototype = $1;
+ $$->body = $2;
+ }
+ ;
#include "ast.h"
#include "glsl_parser_extras.h"
-#include "glsl_parser.tab.h"
+#include "glsl_parser.h"
#include "symbol_table.h"
void
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