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diff --git a/mesalib/src/mesa/shader/slang/library/slang_shader.syn b/mesalib/src/mesa/shader/slang/library/slang_shader.syn
deleted file mode 100644
index cc5c70a02..000000000
--- a/mesalib/src/mesa/shader/slang/library/slang_shader.syn
+++ /dev/null
@@ -1,1716 +0,0 @@
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2004-2006 Brian Paul All Rights Reserved.
- * Copyright (C) 2008 VMware, Inc. 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
- * 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 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
- * BRIAN PAUL 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.
- */
-
-/*
- * \file slang_shader.syn
- * slang vertex/fragment shader syntax
- * \author Michal Krol
- */
-
-/*
- * usage:
- * syn2c slang_shader.syn > slang_shader_syn.h
- *
- * when modifying or extending this file, several things must be taken into
- * consideration:
- *
- * - when adding new operators that were marked as reserved in the
- * initial specification, one must only uncomment particular lines of
- * code that refer to operators being added;
- *
- * - when adding new shader targets, one must reserve a new value for
- * shader_type register and use it in .if constructs for symbols that
- * are exclusive for that shader;
- *
- * - some symbols mimic output of other symbols - the best example is
- * the "for" construct: expression "for (foo(); ; bar())" is seen as
- * "for (foo(); true; bar())" by the output processor - hence, special
- * care must be taken when rearranging output of essential symbols;
- *
- * - order of single-quoted tokens does matter in alternatives - so do not
- * parse "<" operator before "<<" and "<<" before "<<=";
- *
- * - all double-quoted tokens are internally preprocessed to eliminate
- * problems with parsing strings that are prefixes of other strings,
- * like "sampler1D" and "sampler1DShadow";
- */
-
-.syntax translation_unit;
-
-/* revision number - increment after each change affecting emitted output */
-.emtcode REVISION 5
-
-/* external declaration (or precision or invariant stmt) */
-.emtcode EXTERNAL_NULL 0
-.emtcode EXTERNAL_FUNCTION_DEFINITION 1
-.emtcode EXTERNAL_DECLARATION 2
-.emtcode DEFAULT_PRECISION 3
-.emtcode INVARIANT_STMT 4
-
-/* precision */
-.emtcode PRECISION_DEFAULT 0
-.emtcode PRECISION_LOW 1
-.emtcode PRECISION_MEDIUM 2
-.emtcode PRECISION_HIGH 3
-
-/* declaration */
-.emtcode DECLARATION_FUNCTION_PROTOTYPE 1
-.emtcode DECLARATION_INIT_DECLARATOR_LIST 2
-
-/* function type */
-.emtcode FUNCTION_ORDINARY 0
-.emtcode FUNCTION_CONSTRUCTOR 1
-.emtcode FUNCTION_OPERATOR 2
-
-/* function call type */
-.emtcode FUNCTION_CALL_NONARRAY 0
-.emtcode FUNCTION_CALL_ARRAY 1
-
-/* operator type */
-.emtcode OPERATOR_ADDASSIGN 1
-.emtcode OPERATOR_SUBASSIGN 2
-.emtcode OPERATOR_MULASSIGN 3
-.emtcode OPERATOR_DIVASSIGN 4
-/*.emtcode OPERATOR_MODASSIGN 5*/
-/*.emtcode OPERATOR_LSHASSIGN 6*/
-/*.emtcode OPERATOR_RSHASSIGN 7*/
-/*.emtcode OPERATOR_ORASSIGN 8*/
-/*.emtcode OPERATOR_XORASSIGN 9*/
-/*.emtcode OPERATOR_ANDASSIGN 10*/
-.emtcode OPERATOR_LOGICALXOR 11
-/*.emtcode OPERATOR_BITOR 12*/
-/*.emtcode OPERATOR_BITXOR 13*/
-/*.emtcode OPERATOR_BITAND 14*/
-.emtcode OPERATOR_LESS 15
-.emtcode OPERATOR_GREATER 16
-.emtcode OPERATOR_LESSEQUAL 17
-.emtcode OPERATOR_GREATEREQUAL 18
-/*.emtcode OPERATOR_LSHIFT 19*/
-/*.emtcode OPERATOR_RSHIFT 20*/
-.emtcode OPERATOR_MULTIPLY 21
-.emtcode OPERATOR_DIVIDE 22
-/*.emtcode OPERATOR_MODULUS 23*/
-.emtcode OPERATOR_INCREMENT 24
-.emtcode OPERATOR_DECREMENT 25
-.emtcode OPERATOR_PLUS 26
-.emtcode OPERATOR_MINUS 27
-/*.emtcode OPERATOR_COMPLEMENT 28*/
-.emtcode OPERATOR_NOT 29
-
-/* init declarator list */
-.emtcode DECLARATOR_NONE 0
-.emtcode DECLARATOR_NEXT 1
-
-/* variable declaration */
-.emtcode VARIABLE_NONE 0
-.emtcode VARIABLE_IDENTIFIER 1
-.emtcode VARIABLE_INITIALIZER 2
-.emtcode VARIABLE_ARRAY_EXPLICIT 3
-.emtcode VARIABLE_ARRAY_UNKNOWN 4
-
-/* type qualifier */
-.emtcode TYPE_QUALIFIER_NONE 0
-.emtcode TYPE_QUALIFIER_CONST 1
-.emtcode TYPE_QUALIFIER_ATTRIBUTE 2
-.emtcode TYPE_QUALIFIER_VARYING 3
-.emtcode TYPE_QUALIFIER_UNIFORM 4
-.emtcode TYPE_QUALIFIER_FIXEDOUTPUT 5
-.emtcode TYPE_QUALIFIER_FIXEDINPUT 6
-
-/* invariant qualifier */
-.emtcode TYPE_VARIANT 90
-.emtcode TYPE_INVARIANT 91
-
-/* centroid qualifier */
-.emtcode TYPE_CENTER 95
-.emtcode TYPE_CENTROID 96
-
-/* type specifier */
-.emtcode TYPE_SPECIFIER_VOID 0
-.emtcode TYPE_SPECIFIER_BOOL 1
-.emtcode TYPE_SPECIFIER_BVEC2 2
-.emtcode TYPE_SPECIFIER_BVEC3 3
-.emtcode TYPE_SPECIFIER_BVEC4 4
-.emtcode TYPE_SPECIFIER_INT 5
-.emtcode TYPE_SPECIFIER_IVEC2 6
-.emtcode TYPE_SPECIFIER_IVEC3 7
-.emtcode TYPE_SPECIFIER_IVEC4 8
-.emtcode TYPE_SPECIFIER_FLOAT 9
-.emtcode TYPE_SPECIFIER_VEC2 10
-.emtcode TYPE_SPECIFIER_VEC3 11
-.emtcode TYPE_SPECIFIER_VEC4 12
-.emtcode TYPE_SPECIFIER_MAT2 13
-.emtcode TYPE_SPECIFIER_MAT3 14
-.emtcode TYPE_SPECIFIER_MAT4 15
-.emtcode TYPE_SPECIFIER_SAMPLER1D 16
-.emtcode TYPE_SPECIFIER_SAMPLER2D 17
-.emtcode TYPE_SPECIFIER_SAMPLER3D 18
-.emtcode TYPE_SPECIFIER_SAMPLERCUBE 19
-.emtcode TYPE_SPECIFIER_SAMPLER1DSHADOW 20
-.emtcode TYPE_SPECIFIER_SAMPLER2DSHADOW 21
-.emtcode TYPE_SPECIFIER_SAMPLER2DRECT 22
-.emtcode TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23
-.emtcode TYPE_SPECIFIER_STRUCT 24
-.emtcode TYPE_SPECIFIER_TYPENAME 25
-
-/* OpenGL 2.1 */
-.emtcode TYPE_SPECIFIER_MAT23 26
-.emtcode TYPE_SPECIFIER_MAT32 27
-.emtcode TYPE_SPECIFIER_MAT24 28
-.emtcode TYPE_SPECIFIER_MAT42 29
-.emtcode TYPE_SPECIFIER_MAT34 30
-.emtcode TYPE_SPECIFIER_MAT43 31
-
-/* type specifier array */
-.emtcode TYPE_SPECIFIER_NONARRAY 0
-.emtcode TYPE_SPECIFIER_ARRAY 1
-
-/* structure field */
-.emtcode FIELD_NONE 0
-.emtcode FIELD_NEXT 1
-.emtcode FIELD_ARRAY 2
-
-/* operation */
-.emtcode OP_END 0
-.emtcode OP_BLOCK_BEGIN_NO_NEW_SCOPE 1
-.emtcode OP_BLOCK_BEGIN_NEW_SCOPE 2
-.emtcode OP_DECLARE 3
-.emtcode OP_ASM 4
-.emtcode OP_BREAK 5
-.emtcode OP_CONTINUE 6
-.emtcode OP_DISCARD 7
-.emtcode OP_RETURN 8
-.emtcode OP_EXPRESSION 9
-.emtcode OP_IF 10
-.emtcode OP_WHILE 11
-.emtcode OP_DO 12
-.emtcode OP_FOR 13
-.emtcode OP_PUSH_VOID 14
-.emtcode OP_PUSH_BOOL 15
-.emtcode OP_PUSH_INT 16
-.emtcode OP_PUSH_FLOAT 17
-.emtcode OP_PUSH_IDENTIFIER 18
-.emtcode OP_SEQUENCE 19
-.emtcode OP_ASSIGN 20
-.emtcode OP_ADDASSIGN 21
-.emtcode OP_SUBASSIGN 22
-.emtcode OP_MULASSIGN 23
-.emtcode OP_DIVASSIGN 24
-/*.emtcode OP_MODASSIGN 25*/
-/*.emtcode OP_LSHASSIGN 26*/
-/*.emtcode OP_RSHASSIGN 27*/
-/*.emtcode OP_ORASSIGN 28*/
-/*.emtcode OP_XORASSIGN 29*/
-/*.emtcode OP_ANDASSIGN 30*/
-.emtcode OP_SELECT 31
-.emtcode OP_LOGICALOR 32
-.emtcode OP_LOGICALXOR 33
-.emtcode OP_LOGICALAND 34
-/*.emtcode OP_BITOR 35*/
-/*.emtcode OP_BITXOR 36*/
-/*.emtcode OP_BITAND 37*/
-.emtcode OP_EQUAL 38
-.emtcode OP_NOTEQUAL 39
-.emtcode OP_LESS 40
-.emtcode OP_GREATER 41
-.emtcode OP_LESSEQUAL 42
-.emtcode OP_GREATEREQUAL 43
-/*.emtcode OP_LSHIFT 44*/
-/*.emtcode OP_RSHIFT 45*/
-.emtcode OP_ADD 46
-.emtcode OP_SUBTRACT 47
-.emtcode OP_MULTIPLY 48
-.emtcode OP_DIVIDE 49
-/*.emtcode OP_MODULUS 50*/
-.emtcode OP_PREINCREMENT 51
-.emtcode OP_PREDECREMENT 52
-.emtcode OP_PLUS 53
-.emtcode OP_MINUS 54
-/*.emtcode OP_COMPLEMENT 55*/
-.emtcode OP_NOT 56
-.emtcode OP_SUBSCRIPT 57
-.emtcode OP_CALL 58
-.emtcode OP_FIELD 59
-.emtcode OP_POSTINCREMENT 60
-.emtcode OP_POSTDECREMENT 61
-.emtcode OP_PRECISION 62
-.emtcode OP_METHOD 63
-
-/* parameter qualifier */
-.emtcode PARAM_QUALIFIER_IN 0
-.emtcode PARAM_QUALIFIER_OUT 1
-.emtcode PARAM_QUALIFIER_INOUT 2
-
-/* function parameter */
-.emtcode PARAMETER_NONE 0
-.emtcode PARAMETER_NEXT 1
-
-/* function parameter array presence */
-.emtcode PARAMETER_ARRAY_NOT_PRESENT 0
-.emtcode PARAMETER_ARRAY_PRESENT 1
-
-/* INVALID_EXTERNAL_DECLARATION seems to be reported when there's */
-/* any syntax errors... */
-.errtext INVALID_EXTERNAL_DECLARATION "2001: Syntax error."
-.errtext INVALID_OPERATOR_OVERRIDE "2002: Invalid operator override."
-.errtext LBRACE_EXPECTED "2003: '{' expected but '$err_token$' found."
-.errtext LPAREN_EXPECTED "2004: '(' expected but '$err_token$' found."
-.errtext RPAREN_EXPECTED "2005: ')' expected but '$err_token$' found."
-.errtext INVALID_PRECISION "2006: Invalid precision specifier '$err_token$'."
-.errtext INVALID_PRECISION_TYPE "2007: Invalid precision type '$err_token$'."
-
-
-/*
- * tells whether the shader that is being parsed is a built-in shader or not
- * 0 - normal behaviour
- * 1 - accepts constructor and operator definitions and __asm statements
- * the implementation will set it to 1 when compiling internal built-in shaders
- */
-.regbyte parsing_builtin 0
-
-/*
- * holds the type of the shader being parsed; possible values are
- * listed below.
- * FRAGMENT_SHADER 1
- * VERTEX_SHADER 2
- * shader type is set by the caller before parsing
- */
-.regbyte shader_type 0
-
-/*
- * <variable_identifier> ::= <identifier>
- */
-variable_identifier
- identifier .emit OP_PUSH_IDENTIFIER;
-
-/*
- * <primary_expression> ::= <variable_identifier>
- * | <intconstant>
- * | <floatconstant>
- * | <boolconstant>
- * | "(" <expression> ")"
- */
-primary_expression
- floatconstant .or boolconstant .or intconstant .or variable_identifier .or primary_expression_1;
-primary_expression_1
- lparen .and expression .and rparen;
-
-/*
- * <postfix_expression> ::= <primary_expression>
- * | <postfix_expression> "[" <integer_expression> "]"
- * | <function_call>
- * | <postfix_expression> "." <field_selection>
- * | <postfix_expression> "++"
- * | <postfix_expression> "--"
- */
-postfix_expression
- postfix_expression_1 .and .loop postfix_expression_2;
-postfix_expression_1
- function_call .or primary_expression;
-postfix_expression_2
- postfix_expression_3 .or postfix_expression_4 .or
- plusplus .emit OP_POSTINCREMENT .or
- minusminus .emit OP_POSTDECREMENT;
-postfix_expression_3
- lbracket .and integer_expression .and rbracket .emit OP_SUBSCRIPT;
-postfix_expression_4
- dot .and field_selection .emit OP_FIELD;
-
-/*
- * <integer_expression> ::= <expression>
- */
-integer_expression
- expression;
-
-/*
- * <function_call> ::= <function_call_generic>
- */
-function_call
- function_call_or_method;
-
-/*
- * <function_call_or_method> ::= <regular_function_call>
- * | <postfix_expression> "." <function_call_generic>
- */
-function_call_or_method
- regular_function_call .or method_call;
-
-/*
- * <method_call> ::= <identifier> "." <function_call_generic>
- */
-method_call
- identifier .emit OP_METHOD .and dot .and function_call_generic .and .true .emit OP_END;
-
-/*
- * <regular_function_call> ::= <function_call_generic>
- */
-regular_function_call
- function_call_generic .emit OP_CALL .and .true .emit OP_END;
-
-/*
- * <function_call_generic> ::= <function_call_header_with_parameters> ")"
- * | <function_call_header_no_parameters> ")"
- */
-function_call_generic
- function_call_generic_1 .or function_call_generic_2;
-function_call_generic_1
- function_call_header_with_parameters .and rparen .error RPAREN_EXPECTED;
-function_call_generic_2
- function_call_header_no_parameters .and rparen .error RPAREN_EXPECTED;
-
-/*
- * <function_call_header_no_parameters>::= <function_call_header> "void"
- * | <function_call_header>
- */
-function_call_header_no_parameters
- function_call_header .and function_call_header_no_parameters_1;
-function_call_header_no_parameters_1
- "void" .or .true;
-
-/*
- * <function_call_header_with_parameters> ::= <function_call_header> <assignment_expression>
- * | <function_call_header_with_parameters> "," <assignment_expression>
- */
-function_call_header_with_parameters
- function_call_header .and assignment_expression .and .true .emit OP_END .and
- .loop function_call_header_with_parameters_1;
-function_call_header_with_parameters_1
- comma .and assignment_expression .and .true .emit OP_END;
-
-/*
- * <function_call_header> ::= <function_identifier> "("
- */
-function_call_header
- function_identifier .and lparen;
-
-/*
- * <function_identifier> ::= <constructor_identifier>
- * | <identifier>
- * | <type_specifier>
- *
- * note: <constructor_identifier> and <type_specifier> have been deleted
- */
-function_identifier
- identifier .and function_identifier_opt_array;
-function_identifier_opt_array
- function_identifier_array .emit FUNCTION_CALL_ARRAY .or
- .true .emit FUNCTION_CALL_NONARRAY;
-function_identifier_array
- lbracket .and constant_expression .and rbracket;
-
-/*
- * <unary_expression> ::= <postfix_expression>
- * | "++" <unary_expression>
- * | "--" <unary_expression>
- * | <unary_operator> <unary_expression>
- *
- * <unary_operator> ::= "+"
- * | "-"
- * | "!"
- * | "~" // reserved
- */
-unary_expression
- postfix_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or
- unary_expression_4 .or unary_expression_5/* .or unary_expression_6*/;
-unary_expression_1
- plusplus .and unary_expression .and .true .emit OP_PREINCREMENT;
-unary_expression_2
- minusminus .and unary_expression .and .true .emit OP_PREDECREMENT;
-unary_expression_3
- plus .and unary_expression .and .true .emit OP_PLUS;
-unary_expression_4
- minus .and unary_expression .and .true .emit OP_MINUS;
-unary_expression_5
- bang .and unary_expression .and .true .emit OP_NOT;
-/*unary_expression_6
- tilde .and unary_expression .and .true .emit OP_COMPLEMENT;*/
-
-/*
- * <multiplicative_expression> ::= <unary_expression>
- * | <multiplicative_expression> "*" <unary_expression>
- * | <multiplicative_expression> "/" <unary_expression>
- * | <multiplicative_expression> "%" <unary_expression> // reserved
- */
-multiplicative_expression
- unary_expression .and .loop multiplicative_expression_1;
-multiplicative_expression_1
- multiplicative_expression_2 .or multiplicative_expression_3/* .or multiplicative_expression_4*/;
-multiplicative_expression_2
- star .and unary_expression .and .true .emit OP_MULTIPLY;
-multiplicative_expression_3
- slash .and unary_expression .and .true .emit OP_DIVIDE;
-/*multiplicative_expression_4
- percent .and unary_expression .and .true .emit OP_MODULUS;*/
-
-/*
- * <additive_expression> ::= <multiplicative_expression>
- * | <additive_expression> "+" <multiplicative_expression>
- * | <additive_expression> "-" <multiplicative_expression>
- */
-additive_expression
- multiplicative_expression .and .loop additive_expression_1;
-additive_expression_1
- additive_expression_2 .or additive_expression_3;
-additive_expression_2
- plus .and multiplicative_expression .and .true .emit OP_ADD;
-additive_expression_3
- minus .and multiplicative_expression .and .true .emit OP_SUBTRACT;
-
-/*
- * <shift_expression> ::= <additive_expression>
- * | <shift_expression> "<<" <additive_expression> // reserved
- * | <shift_expression> ">>" <additive_expression> // reserved
- */
-shift_expression
- additive_expression/* .and .loop shift_expression_1*/;
-/*shift_expression_1
- shift_expression_2 .or shift_expression_3;*/
-/*shift_expression_2
- lessless .and additive_expression .and .true .emit OP_LSHIFT;*/
-/*shift_expression_3
- greatergreater .and additive_expression .and .true .emit OP_RSHIFT;*/
-
-/*
- * <relational_expression> ::= <shift_expression>
- * | <relational_expression> "<" <shift_expression>
- * | <relational_expression> ">" <shift_expression>
- * | <relational_expression> "<=" <shift_expression>
- * | <relational_expression> ">=" <shift_expression>
- */
-relational_expression
- shift_expression .and .loop relational_expression_1;
-relational_expression_1
- relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or
- relational_expression_5;
-relational_expression_2
- lessequals .and shift_expression .and .true .emit OP_LESSEQUAL;
-relational_expression_3
- greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL;
-relational_expression_4
- less .and shift_expression .and .true .emit OP_LESS;
-relational_expression_5
- greater .and shift_expression .and .true .emit OP_GREATER;
-
-/*
- * <equality_expression> ::= <relational_expression>
- * | <equality_expression> "==" <relational_expression>
- * | <equality_expression> "!=" <relational_expression>
- */
-equality_expression
- relational_expression .and .loop equality_expression_1;
-equality_expression_1
- equality_expression_2 .or equality_expression_3;
-equality_expression_2
- equalsequals .and relational_expression .and .true .emit OP_EQUAL;
-equality_expression_3
- bangequals .and relational_expression .and .true .emit OP_NOTEQUAL;
-
-/*
- * <and_expression> ::= <equality_expression>
- * | <and_expression> "&" <equality_expression> // reserved
- */
-and_expression
- equality_expression/* .and .loop and_expression_1*/;
-/*and_expression_1
- ampersand .and equality_expression .and .true .emit OP_BITAND;*/
-
-/*
- * <exclusive_or_expression> ::= <and_expression>
- * | <exclusive_or_expression> "^" <and_expression> // reserved
- */
-exclusive_or_expression
- and_expression/* .and .loop exclusive_or_expression_1*/;
-/*exclusive_or_expression_1
- caret .and and_expression .and .true .emit OP_BITXOR;*/
-
-/*
- * <inclusive_or_expression> ::= <exclusive_or_expression>
- * | <inclusive_or_expression> "|" <exclusive_or_expression> // reserved
- */
-inclusive_or_expression
- exclusive_or_expression/* .and .loop inclusive_or_expression_1*/;
-/*inclusive_or_expression_1
- bar .and exclusive_or_expression .and .true .emit OP_BITOR;*/
-
-/*
- * <logical_and_expression> ::= <inclusive_or_expression>
- * | <logical_and_expression> "&&" <inclusive_or_expression>
- */
-logical_and_expression
- inclusive_or_expression .and .loop logical_and_expression_1;
-logical_and_expression_1
- ampersandampersand .and inclusive_or_expression .and .true .emit OP_LOGICALAND;
-
-/*
- * <logical_xor_expression> ::= <logical_and_expression>
- * | <logical_xor_expression> "^^" <logical_and_expression>
- */
-logical_xor_expression
- logical_and_expression .and .loop logical_xor_expression_1;
-logical_xor_expression_1
- caretcaret .and logical_and_expression .and .true .emit OP_LOGICALXOR;
-
-/*
- * <logical_or_expression> ::= <logical_xor_expression>
- * | <logical_or_expression> "||" <logical_xor_expression>
- */
-logical_or_expression
- logical_xor_expression .and .loop logical_or_expression_1;
-logical_or_expression_1
- barbar .and logical_xor_expression .and .true .emit OP_LOGICALOR;
-
-/*
- * <conditional_expression> ::= <logical_or_expression>
- * | <logical_or_expression> "?" <expression> ":" <conditional_expression>
- */
-conditional_expression
- logical_or_expression .and .loop conditional_expression_1;
-conditional_expression_1
- question .and expression .and colon .and conditional_expression .and .true .emit OP_SELECT;
-
-/*
- * <assignment_expression> ::= <conditional_expression>
- * | <unary_expression> <assignment_operator> <assignment_expression>
- *
- * <assignment_operator> ::= "="
- * | "*="
- * | "/="
- * | "+="
- * | "-="
- * | "%=" // reserved
- * | "<<=" // reserved
- * | ">>=" // reserved
- * | "&=" // reserved
- * | "^=" // reserved
- * | "|=" // reserved
- */
-assignment_expression
- assignment_expression_1 .or assignment_expression_2 .or assignment_expression_3 .or
- assignment_expression_4 .or assignment_expression_5/* .or assignment_expression_6 .or
- assignment_expression_7 .or assignment_expression_8 .or assignment_expression_9 .or
- assignment_expression_10 .or assignment_expression_11*/ .or conditional_expression;
-assignment_expression_1
- unary_expression .and equals .and assignment_expression .and .true .emit OP_ASSIGN;
-assignment_expression_2
- unary_expression .and starequals .and assignment_expression .and .true .emit OP_MULASSIGN;
-assignment_expression_3
- unary_expression .and slashequals .and assignment_expression .and .true .emit OP_DIVASSIGN;
-assignment_expression_4
- unary_expression .and plusequals .and assignment_expression .and .true .emit OP_ADDASSIGN;
-assignment_expression_5
- unary_expression .and minusequals .and assignment_expression .and .true .emit OP_SUBASSIGN;
-/*assignment_expression_6
- unary_expression .and percentequals .and assignment_expression .and .true .emit OP_MODASSIGN;*/
-/*assignment_expression_7
- unary_expression .and lesslessequals .and assignment_expression .and .true .emit OP_LSHASSIGN;*/
-/*assignment_expression_8
- unary_expression .and greatergreaterequals .and assignment_expression .and
- .true .emit OP_RSHASSIGN;*/
-/*assignment_expression_9
- unary_expression .and ampersandequals .and assignment_expression .and .true .emit OP_ANDASSIGN;*/
-/*assignment_expression_10
- unary_expression .and caretequals .and assignment_expression .and .true .emit OP_XORASSIGN;*/
-/*assignment_expression_11
- unary_expression .and barequals .and assignment_expression .and .true .emit OP_ORASSIGN;*/
-
-/*
- * <expression> ::= <assignment_expression>
- * | <expression> "," <assignment_expression>
- */
-expression
- assignment_expression .and .loop expression_1;
-expression_1
- comma .and assignment_expression .and .true .emit OP_SEQUENCE;
-
-/*
- * <constant_expression> ::= <conditional_expression>
- */
-constant_expression
- conditional_expression .and .true .emit OP_END;
-
-/*
- * <declaration> ::= <function_prototype> ";"
- * | <init_declarator_list> ";"
- */
-declaration
- declaration_1 .or declaration_2;
-declaration_1
- function_prototype .emit DECLARATION_FUNCTION_PROTOTYPE .and semicolon;
-declaration_2
- init_declarator_list .emit DECLARATION_INIT_DECLARATOR_LIST .and semicolon;
-
-/*
- * <function_prototype> ::= <function_header> "void" ")"
- * | <function_declarator> ")"
- */
-function_prototype
- function_prototype_1 .or function_prototype_2;
-function_prototype_1
- function_header .and "void" .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;
-function_prototype_2
- function_declarator .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;
-
-/*
- * <function_declarator> ::= <function_header>
- * | <function_header_with_parameters>
- */
-function_declarator
- function_header_with_parameters .or function_header;
-
-/*
- * <function_header_with_parameters> ::= <function_header> <parameter_declaration>
- * | <function_header_with_parameters> ","
- * <parameter_declaration>
- */
-function_header_with_parameters
- function_header .and parameter_declaration .and .loop function_header_with_parameters_1;
-function_header_with_parameters_1
- comma .and parameter_declaration;
-
-/*
- * <function_header> ::= <fully_specified_type> <identifier> "("
- */
-function_header
- function_header_nospace .or function_header_space;
-function_header_space
- fully_specified_type_space .and space .and function_decl_identifier .and lparen;
-function_header_nospace
- fully_specified_type_nospace .and function_decl_identifier .and lparen;
-
-/*
- * <function_decl_identifier> ::= "__constructor"
- * | <__operator>
- * | <identifier>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator and constructor prototypes and definitions
- */
-function_decl_identifier
- .if (parsing_builtin != 0) __operator .emit FUNCTION_OPERATOR .or
- .if (parsing_builtin != 0) "__constructor" .emit FUNCTION_CONSTRUCTOR .or
- identifier .emit FUNCTION_ORDINARY;
-
-/*
- * <__operator> ::= "__operator" <overriden_op>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator prototypes and definitions
- */
-__operator
- "__operator" .and overriden_operator .error INVALID_OPERATOR_OVERRIDE;
-
-/*
- * <overriden_op> ::= "="
- * | "+="
- * | "-="
- * | "*="
- * | "/="
- * | "%=" // reserved
- * | "<<=" // reserved
- * | ">>=" // reserved
- * | "&=" // reserved
- * | "^=" // reserved
- * | "|=" // reserved
- * | "^^"
- * | "|" // reserved
- * | "^" // reserved
- * | "&" // reserved
- * | "=="
- * | "!="
- * | "<"
- * | ">"
- * | "<="
- * | ">="
- * | "<<" // reserved
- * | ">>" // reserved
- * | "*"
- * | "/"
- * | "%" // reserved
- * | "++"
- * | "--"
- * | "+"
- * | "-"
- * | "~" // reserved
- * | "!"
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator prototypes and definitions
- */
-overriden_operator
- plusplus .emit OPERATOR_INCREMENT .or
- plusequals .emit OPERATOR_ADDASSIGN .or
- plus .emit OPERATOR_PLUS .or
- minusminus .emit OPERATOR_DECREMENT .or
- minusequals .emit OPERATOR_SUBASSIGN .or
- minus .emit OPERATOR_MINUS .or
- bang .emit OPERATOR_NOT .or
- starequals .emit OPERATOR_MULASSIGN .or
- star .emit OPERATOR_MULTIPLY .or
- slashequals .emit OPERATOR_DIVASSIGN .or
- slash .emit OPERATOR_DIVIDE .or
- lessequals .emit OPERATOR_LESSEQUAL .or
- /*lesslessequals .emit OPERATOR_LSHASSIGN .or*/
- /*lessless .emit OPERATOR_LSHIFT .or*/
- less .emit OPERATOR_LESS .or
- greaterequals .emit OPERATOR_GREATEREQUAL .or
- /*greatergreaterequals .emit OPERATOR_RSHASSIGN .or*/
- /*greatergreater .emit OPERATOR_RSHIFT .or*/
- greater .emit OPERATOR_GREATER .or
- /*percentequals .emit OPERATOR_MODASSIGN .or*/
- /*percent .emit OPERATOR_MODULUS .or*/
- /*ampersandequals .emit OPERATOR_ANDASSIGN */
- /*ampersand .emit OPERATOR_BITAND .or*/
- /*barequals .emit OPERATOR_ORASSIGN .or*/
- /*bar .emit OPERATOR_BITOR .or*/
- /*tilde .emit OPERATOR_COMPLEMENT .or*/
- /*caretequals .emit OPERATOR_XORASSIGN .or*/
- caretcaret .emit OPERATOR_LOGICALXOR /*.or
- caret .emit OPERATOR_BITXOR*/;
-
-/*
- * <parameter_declarator> ::= <type_specifier> <identifier>
- * | <type_specifier> <identifier> "[" <constant_expression> "]"
- */
-parameter_declarator
- parameter_declarator_nospace .or parameter_declarator_space;
-parameter_declarator_nospace
- type_specifier_nospace .and identifier .and parameter_declarator_1;
-parameter_declarator_space
- type_specifier_space .and space .and identifier .and parameter_declarator_1;
-parameter_declarator_1
- parameter_declarator_2 .emit PARAMETER_ARRAY_PRESENT .or
- .true .emit PARAMETER_ARRAY_NOT_PRESENT;
-parameter_declarator_2
- lbracket .and constant_expression .and rbracket;
-
-/*
- * <parameter_declaration> ::= <type_qualifier> <parameter_qualifier>
- * <precision> <parameter_declarator>
- * | <type_qualifier> <parameter_qualifier>
- * <precision> <parameter_type_specifier>
- * | <type_qualifier> <parameter_qualifier>
- * <parameter_declarator>
- * | <type_qualifier> <parameter_qualifier>
- * <parameter_type_specifier>
- * | <parameter_qualifier> <precision>
- * <parameter_declarator>
- * | <parameter_qualifier> <precision>
- * <parameter_type_specifier>
- * | <parameter_qualifier> <parameter_declarator>
- * | <parameter_qualifier> <parameter_type_specifier>
- */
-parameter_declaration
- parameter_declaration_1 .emit PARAMETER_NEXT;
-parameter_declaration_1
- parameter_declaration_2 .or parameter_declaration_3;
-parameter_declaration_2
- type_qualifier .and space .and parameter_qualifier .and parameter_declaration_4;
-parameter_declaration_3
- parameter_qualifier .emit TYPE_QUALIFIER_NONE .and parameter_declaration_4;
-parameter_declaration_4
- parameter_declaration_optprec .and parameter_declaration_rest;
-parameter_declaration_optprec
- parameter_declaration_prec .or .true .emit PRECISION_DEFAULT;
-parameter_declaration_prec
- precision .and space;
-parameter_declaration_rest
- parameter_declarator .or parameter_type_specifier;
-
-/*
- * <parameter_qualifier> ::= "in"
- * | "out"
- * | "inout"
- * | ""
- */
-parameter_qualifier
- parameter_qualifier_1 .or .true .emit PARAM_QUALIFIER_IN;
-parameter_qualifier_1
- parameter_qualifier_2 .and space;
-parameter_qualifier_2
- "in" .emit PARAM_QUALIFIER_IN .or
- "out" .emit PARAM_QUALIFIER_OUT .or
- "inout" .emit PARAM_QUALIFIER_INOUT;
-
-/*
- * <parameter_type_specifier> ::= <type_specifier>
- * | <type_specifier> "[" <constant_expression> "]"
- */
-parameter_type_specifier
- parameter_type_specifier_1 .and .true .emit '\0' .and parameter_type_specifier_2;
-parameter_type_specifier_1
- type_specifier_nospace .or type_specifier_space;
-parameter_type_specifier_2
- parameter_type_specifier_3 .emit PARAMETER_ARRAY_PRESENT .or
- .true .emit PARAMETER_ARRAY_NOT_PRESENT;
-parameter_type_specifier_3
- lbracket .and constant_expression .and rbracket;
-
-/*
- * <init_declarator_list> ::= <single_declaration>
- * | <init_declarator_list> "," <identifier>
- * | <init_declarator_list> "," <identifier> "[" "]"
- * | <init_declarator_list> "," <identifier> "[" <constant_expression> "]"
- * | <init_declarator_list> "," <identifier> "=" <initializer>
- */
-init_declarator_list
- single_declaration .and .loop init_declarator_list_1 .emit DECLARATOR_NEXT .and
- .true .emit DECLARATOR_NONE;
-init_declarator_list_1
- comma .and identifier .emit VARIABLE_IDENTIFIER .and init_declarator_list_2;
-init_declarator_list_2
- init_declarator_list_3 .or init_declarator_list_4 .or .true .emit VARIABLE_NONE;
-init_declarator_list_3
- equals .and initializer .emit VARIABLE_INITIALIZER;
-init_declarator_list_4
- lbracket .and init_declarator_list_5 .and rbracket;
-init_declarator_list_5
- constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;
-
-/*
- * <single_declaration> ::= <fully_specified_type>
- * | <fully_specified_type> <identifier>
- * | <fully_specified_type> <identifier> "[" "]"
- * | <fully_specified_type> <identifier> "[" <constant_expression> "]"
- * | <fully_specified_type> <identifier> "=" <initializer>
- */
-single_declaration
- single_declaration_nospace .or single_declaration_space;
-single_declaration_space
- fully_specified_type_space .and single_declaration_space_1;
-single_declaration_nospace
- fully_specified_type_nospace .and single_declaration_nospace_1;
-single_declaration_space_1
- single_declaration_space_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;
-single_declaration_nospace_1
- single_declaration_nospace_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;
-single_declaration_space_2
- space .and identifier .and single_declaration_3;
-single_declaration_nospace_2
- identifier .and single_declaration_3;
-single_declaration_3
- single_declaration_4 .or single_declaration_5 .or .true .emit VARIABLE_NONE;
-single_declaration_4
- equals .and initializer .emit VARIABLE_INITIALIZER;
-single_declaration_5
- lbracket .and single_declaration_6 .and rbracket;
-single_declaration_6
- constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;
-
-/*
- * <fully_specified_type> ::= <opt_invariant> <opt_centroid> <opt_qualifer> <opt_precision> <type_specifier>
- *
- * Example: "invariant varying highp vec3"
- */
-fully_specified_type_space
- fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_space;
-fully_specified_type_nospace
- fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_nospace;
-fully_specified_type_optinvariant
- fully_specified_type_invariant .or .true .emit TYPE_VARIANT;
-fully_specified_type_invariant
- invariant_qualifier .and space;
-fully_specified_type_optcentroid
- fully_specified_type_centroid .or .true .emit TYPE_CENTER;
-fully_specified_type_centroid
- centroid_qualifier .and space;
-fully_specified_type_optqual
- fully_specified_type_qual .or .true .emit TYPE_QUALIFIER_NONE;
-fully_specified_type_qual
- type_qualifier .and space;
-fully_specified_type_optprec
- fully_specified_type_prec .or .true .emit PRECISION_DEFAULT;
-fully_specified_type_prec
- precision .and space;
-
-/*
- * <invariant_qualifier> ::= "invariant"
- */
-invariant_qualifier
- "invariant" .emit TYPE_INVARIANT;
-
-centroid_qualifier
- "centroid" .emit TYPE_CENTROID;
-
-
-/*
- * <type_qualifier> ::= "const"
- * | "attribute" // Vertex only.
- * | "varying"
- * | "uniform"
- * | "__fixed_output"
- * | "__fixed_input"
- *
- * note: this is an extension to the standard language specification,
- * normally slang disallows __fixed_output and __fixed_input type qualifiers
- */
-type_qualifier
- "const" .emit TYPE_QUALIFIER_CONST .or
- .if (shader_type == 2) "attribute" .emit TYPE_QUALIFIER_ATTRIBUTE .or
- "varying" .emit TYPE_QUALIFIER_VARYING .or
- "uniform" .emit TYPE_QUALIFIER_UNIFORM .or
- .if (parsing_builtin != 0) "__fixed_output" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or
- .if (parsing_builtin != 0) "__fixed_input" .emit TYPE_QUALIFIER_FIXEDINPUT;
-
-/*
- * <type_specifier_nonarray> ::= "void"
- * | "float"
- * | "int"
- * | "bool"
- * | "vec2"
- * | "vec3"
- * | "vec4"
- * | "bvec2"
- * | "bvec3"
- * | "bvec4"
- * | "ivec2"
- * | "ivec3"
- * | "ivec4"
- * | "mat2"
- * | "mat3"
- * | "mat4"
- * | "mat2x3"
- * | "mat3x2"
- * | "mat2x4"
- * | "mat4x2"
- * | "mat3x4"
- * | "mat4x3"
- * | "sampler1D"
- * | "sampler2D"
- * | "sampler3D"
- * | "samplerCube"
- * | "sampler1DShadow"
- * | "sampler2DShadow"
- * | "sampler2DRect"
- * | "sampler2DRectShadow"
- * | <struct_specifier>
- * | <type_name>
- */
-type_specifier_nonarray_space
- "void" .emit TYPE_SPECIFIER_VOID .or
- "float" .emit TYPE_SPECIFIER_FLOAT .or
- "int" .emit TYPE_SPECIFIER_INT .or
- "bool" .emit TYPE_SPECIFIER_BOOL .or
- "vec2" .emit TYPE_SPECIFIER_VEC2 .or
- "vec3" .emit TYPE_SPECIFIER_VEC3 .or
- "vec4" .emit TYPE_SPECIFIER_VEC4 .or
- "bvec2" .emit TYPE_SPECIFIER_BVEC2 .or
- "bvec3" .emit TYPE_SPECIFIER_BVEC3 .or
- "bvec4" .emit TYPE_SPECIFIER_BVEC4 .or
- "ivec2" .emit TYPE_SPECIFIER_IVEC2 .or
- "ivec3" .emit TYPE_SPECIFIER_IVEC3 .or
- "ivec4" .emit TYPE_SPECIFIER_IVEC4 .or
- "mat2" .emit TYPE_SPECIFIER_MAT2 .or
- "mat3" .emit TYPE_SPECIFIER_MAT3 .or
- "mat4" .emit TYPE_SPECIFIER_MAT4 .or
- "mat2x3" .emit TYPE_SPECIFIER_MAT23 .or
- "mat3x2" .emit TYPE_SPECIFIER_MAT32 .or
- "mat2x4" .emit TYPE_SPECIFIER_MAT24 .or
- "mat4x2" .emit TYPE_SPECIFIER_MAT42 .or
- "mat3x4" .emit TYPE_SPECIFIER_MAT34 .or
- "mat4x3" .emit TYPE_SPECIFIER_MAT43 .or
- "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or
- "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or
- "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or
- "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or
- "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or
- "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or
- "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or
- "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW .or
- type_name .emit TYPE_SPECIFIER_TYPENAME;
-type_specifier_nonarray_nospace
- struct_specifier .emit TYPE_SPECIFIER_STRUCT;
-type_specifier_nonarray
- type_specifier_nonarray_nospace .or type_specifier_nonarray_space;
-
-/*
- * <type_specifier> ::= <type_specifier_nonarray>
- * | <type_specifier_nonarray> "[" <constant_expression> "]"
- */
-type_specifier_space
- type_specifier_nonarray_space .and .true .emit TYPE_SPECIFIER_NONARRAY;
-type_specifier_nospace
- type_specifier_nospace_array .or type_specifier_nospace_1;
-type_specifier_nospace_1
- type_specifier_nonarray_nospace .and .true .emit TYPE_SPECIFIER_NONARRAY;
-type_specifier_nospace_array
- type_specifier_nonarray .and lbracket .emit TYPE_SPECIFIER_ARRAY .and constant_expression .and rbracket;
-
-/*
- * <struct_specifier> ::= "struct" <identifier> "{" <struct_declaration_list> "}"
- * | "struct" "{" <struct_declaration_list> "}"
- */
-struct_specifier
- "struct" .and struct_specifier_1 .and optional_space .and lbrace .error LBRACE_EXPECTED .and
- struct_declaration_list .and rbrace .emit FIELD_NONE;
-struct_specifier_1
- struct_specifier_2 .or .true .emit '\0';
-struct_specifier_2
- space .and identifier;
-
-/*
- * <struct_declaration_list> ::= <struct_declaration>
- * | <struct_declaration_list> <struct_declaration>
- */
-struct_declaration_list
- struct_declaration .and .loop struct_declaration .emit FIELD_NEXT;
-
-/*
- * <struct_declaration> ::= <type_specifier> <struct_declarator_list> ";"
- */
-struct_declaration
- struct_declaration_nospace .or struct_declaration_space;
-struct_declaration_space
- type_specifier_space .and space .and struct_declarator_list .and semicolon .emit FIELD_NONE;
-struct_declaration_nospace
- type_specifier_nospace .and struct_declarator_list .and semicolon .emit FIELD_NONE;
-
-/*
- * <struct_declarator_list> ::= <struct_declarator>
- * | <struct_declarator_list> "," <struct_declarator>
- */
-struct_declarator_list
- struct_declarator .and .loop struct_declarator_list_1 .emit FIELD_NEXT;
-struct_declarator_list_1
- comma .and struct_declarator;
-
-/*
- * <struct_declarator> ::= <identifier>
- * | <identifier> "[" <constant_expression> "]"
- */
-struct_declarator
- identifier .and struct_declarator_1;
-struct_declarator_1
- struct_declarator_2 .emit FIELD_ARRAY .or .true .emit FIELD_NONE;
-struct_declarator_2
- lbracket .and constant_expression .and rbracket;
-
-/*
- * <initializer> ::= <assignment_expression>
- */
-initializer
- assignment_expression .and .true .emit OP_END;
-
-/*
- * <declaration_statement> ::= <declaration>
- */
-declaration_statement
- declaration;
-
-/*
- * <statement> ::= <compound_statement>
- * | <simple_statement>
- */
-statement
- compound_statement .or simple_statement;
-statement_space
- compound_statement .or statement_space_1;
-statement_space_1
- space .and simple_statement;
-
-/*
- * <simple_statement> ::= <__asm_statement>
- * | <selection_statement>
- * | <iteration_statement>
- * | <jump_statement>
- * | <expression_statement>
- * | <declaration_statement>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows use of __asm statements
- */
-simple_statement
- .if (parsing_builtin != 0) __asm_statement .emit OP_ASM .or
- selection_statement .or
- iteration_statement .or
- precision_stmt .emit OP_PRECISION .or
- jump_statement .or
- expression_statement .emit OP_EXPRESSION .or
- declaration_statement .emit OP_DECLARE;
-
-/*
- * <compound_statement> ::= "{" "}"
- * | "{" <statement_list> "}"
- */
-compound_statement
- compound_statement_1 .emit OP_BLOCK_BEGIN_NEW_SCOPE .and .true .emit OP_END;
-compound_statement_1
- compound_statement_2 .or compound_statement_3;
-compound_statement_2
- lbrace .and rbrace;
-compound_statement_3
- lbrace .and statement_list .and rbrace;
-
-/*
- * <compound_statement_no_new_scope> ::= "{" "}"
- * | "{" <statement_list> "}"
- */
-compound_statement_no_new_scope
- compound_statement_no_new_scope_1 .emit OP_BLOCK_BEGIN_NO_NEW_SCOPE .and .true .emit OP_END;
-compound_statement_no_new_scope_1
- compound_statement_no_new_scope_2 .or compound_statement_no_new_scope_3;
-compound_statement_no_new_scope_2
- lbrace .and rbrace;
-compound_statement_no_new_scope_3
- lbrace .and statement_list .and rbrace;
-
-
-/*
- * <statement_list> ::= <statement>
- * | <statement_list> <statement>
- */
-statement_list
- statement .and .loop statement;
-
-/*
- * <expression_statement> ::= ";"
- * | <expression> ";"
- */
-expression_statement
- expression_statement_1 .or expression_statement_2;
-expression_statement_1
- semicolon .emit OP_PUSH_VOID .emit OP_END;
-expression_statement_2
- expression .and semicolon .emit OP_END;
-
-/*
- * <selection_statement> ::= "if" "(" <expression> ")" <selection_rest_statement>
- */
-selection_statement
- "if" .emit OP_IF .and lparen .error LPAREN_EXPECTED .and expression .and
- rparen .error RPAREN_EXPECTED .emit OP_END .and selection_rest_statement;
-
-/*
- * <selection_rest_statement> ::= <statement> "else" <statement>
- * | <statement>
- */
-selection_rest_statement
- statement .and selection_rest_statement_1;
-selection_rest_statement_1
- selection_rest_statement_2 .or .true .emit OP_EXPRESSION .emit OP_PUSH_VOID .emit OP_END;
-selection_rest_statement_2
- "else" .and optional_space .and statement;
-
-/*
- * <condition> ::= <expression>
- * | <fully_specified_type> <identifier> "=" <initializer>
- *
- * note: if <condition_1> is executed, the emit format must
- * match <declaration> emit format
- */
-condition
- condition_1 .emit OP_DECLARE .emit DECLARATION_INIT_DECLARATOR_LIST .or
- condition_3 .emit OP_EXPRESSION;
-condition_1
- condition_1_nospace .or condition_1_space;
-condition_1_nospace
- fully_specified_type_nospace .and condition_2;
-condition_1_space
- fully_specified_type_space .and space .and condition_2;
-condition_2
- identifier .emit VARIABLE_IDENTIFIER .and equals .emit VARIABLE_INITIALIZER .and
- initializer .and .true .emit DECLARATOR_NONE;
-condition_3
- expression .and .true .emit OP_END;
-
-/*
- * <iteration_statement> ::= "while" "(" <condition> ")" <statement>
- * | "do" <statement> "while" "(" <expression> ")" ";"
- * | "for" "(" <for_init_statement> <for_rest_statement> ")" <statement>
- */
-iteration_statement
- iteration_statement_1 .or iteration_statement_2 .or iteration_statement_3;
-iteration_statement_1
- "while" .emit OP_WHILE .and lparen .error LPAREN_EXPECTED .and condition .and
- rparen .error RPAREN_EXPECTED .and statement;
-iteration_statement_2
- "do" .emit OP_DO .and statement_space .and "while" .and lparen .error LPAREN_EXPECTED .and
- expression .and rparen .error RPAREN_EXPECTED .emit OP_END .and semicolon;
-iteration_statement_3
- "for" .emit OP_FOR .and lparen .error LPAREN_EXPECTED .and for_init_statement .and
- for_rest_statement .and rparen .error RPAREN_EXPECTED .and statement;
-
-/*
- * <for_init_statement> ::= <expression_statement>
- * | <declaration_statement>
- */
-for_init_statement
- expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE;
-
-/*
- * <conditionopt> ::= <condition>
- * | ""
- *
- * note: <conditionopt> is used only by "for" statement.
- * if <condition> is ommitted, parser simulates default behaviour,
- * that is simulates "true" expression
- */
-conditionopt
- condition .or
- .true .emit OP_EXPRESSION .emit OP_PUSH_BOOL .emit 2 .emit '1' .emit '\0' .emit OP_END;
-
-/*
- * <for_rest_statement> ::= <conditionopt> ";"
- * | <conditionopt> ";" <expression>
- */
-for_rest_statement
- conditionopt .and semicolon .and for_rest_statement_1;
-for_rest_statement_1
- for_rest_statement_2 .or .true .emit OP_PUSH_VOID .emit OP_END;
-for_rest_statement_2
- expression .and .true .emit OP_END;
-
-/*
- * <jump_statement> ::= "continue" ";"
- * | "break" ";"
- * | "return" ";"
- * | "return" <expression> ";"
- * | "discard" ";" // Fragment shader only.
- */
-jump_statement
- jump_statement_1 .or jump_statement_2 .or jump_statement_3 .or jump_statement_4 .or
- .if (shader_type == 1) jump_statement_5;
-jump_statement_1
- "continue" .and semicolon .emit OP_CONTINUE;
-jump_statement_2
- "break" .and semicolon .emit OP_BREAK;
-jump_statement_3
- "return" .emit OP_RETURN .and optional_space .and expression .and semicolon .emit OP_END;
-jump_statement_4
- "return" .emit OP_RETURN .and semicolon .emit OP_PUSH_VOID .emit OP_END;
-jump_statement_5
- "discard" .and semicolon .emit OP_DISCARD;
-
-/*
- * <__asm_statement> ::= "__asm" <identifier> <asm_arguments> ";"
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-__asm_statement
- "__asm" .and space .and identifier .and space .and asm_arguments .and semicolon .emit OP_END;
-
-/*
- * <asm_arguments> ::= <asm_argument>
- * | <asm_arguments> "," <asm_argument>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-asm_arguments
- asm_argument .and .true .emit OP_END .and .loop asm_arguments_1;
-asm_arguments_1
- comma .and asm_argument .and .true .emit OP_END;
-
-/*
- * <asm_argument> ::= <variable_identifier>
- * | <floatconstant>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-asm_argument
- var_with_field .or
- variable_identifier .or
- floatconstant;
-
-var_with_field
- variable_identifier .and dot .and field_selection .emit OP_FIELD;
-
-
-/*
- * <translation_unit> ::= <external_declaration>
- * | <translation_unit> <external_declaration>
- */
-translation_unit
- optional_space .emit REVISION .and external_declaration .error INVALID_EXTERNAL_DECLARATION .and
- .loop external_declaration .and optional_space .and
- '\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL;
-
-
-/*
- * <external_declaration> ::= <function_definition>
- * | <declaration>
- */
-external_declaration
- precision_stmt .emit DEFAULT_PRECISION .or
- function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or
- invariant_stmt .emit INVARIANT_STMT .or
- declaration .emit EXTERNAL_DECLARATION;
-
-
-/*
- * <precision_stmt> ::= "precision" <precision> <prectype>
- */
-precision_stmt
- "precision" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon;
-
-/*
- * <precision> ::= "lowp"
- * | "mediump"
- * | "highp"
- */
-precision
- "lowp" .emit PRECISION_LOW .or
- "mediump" .emit PRECISION_MEDIUM .or
- "highp" .emit PRECISION_HIGH;
-
-/*
- * <prectype> ::= "int"
- * | "float"
- * | "a sampler type"
- */
-prectype
- "int" .emit TYPE_SPECIFIER_INT .or
- "float" .emit TYPE_SPECIFIER_FLOAT .or
- "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or
- "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or
- "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or
- "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or
- "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or
- "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or
- "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or
- "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;
-
-
-/*
- * <invariant_stmt> ::= "invariant" identifier;
- */
-invariant_stmt
- "invariant" .and space .and identifier .and semicolon;
-
-
-/*
- * <function_definition> :: <function_prototype> <compound_statement_no_new_scope>
- */
-function_definition
- function_prototype .and compound_statement_no_new_scope;
-
-
-
-/*
- * helper rules, not part of the official language syntax
- */
-
-digit_oct
- '0'-'7';
-
-digit_dec
- '0'-'9';
-
-digit_hex
- '0'-'9' .or 'A'-'F' .or 'a'-'f';
-
-id_character_first
- 'a'-'z' .or 'A'-'Z' .or '_';
-
-id_character_next
- id_character_first .or digit_dec;
-
-identifier
- id_character_first .emit * .and .loop id_character_next .emit * .and .true .emit '\0';
-
-float
- float_1 .or float_2 .or float_3;
-float_1
- float_fractional_constant .and float_optional_exponent_part .and optional_f_suffix;
-float_2
- float_digit_sequence .and .true .emit '\0' .and float_exponent_part .and optional_f_suffix;
-float_3
- float_digit_sequence .and .true .emit '\0' .and 'f' .emit '\0';
-
-float_fractional_constant
- float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3;
-float_fractional_constant_1
- float_digit_sequence .and '.' .and float_digit_sequence;
-float_fractional_constant_2
- float_digit_sequence .and '.' .and .true .emit '\0';
-float_fractional_constant_3
- '.' .emit '\0' .and float_digit_sequence;
-
-float_optional_exponent_part
- float_exponent_part .or .true .emit '\0';
-
-float_digit_sequence
- digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\0';
-
-float_exponent_part
- float_exponent_part_1 .or float_exponent_part_2;
-float_exponent_part_1
- 'e' .and float_optional_sign .and float_digit_sequence;
-float_exponent_part_2
- 'E' .and float_optional_sign .and float_digit_sequence;
-
-float_optional_sign
- float_sign .or .true;
-
-float_sign
- '+' .or '-' .emit '-';
-
-optional_f_suffix
- 'f' .or .true;
-
-
-integer
- integer_hex .or integer_oct .or integer_dec;
-
-integer_hex
- '0' .and integer_hex_1 .emit 0x10 .and digit_hex .emit * .and .loop digit_hex .emit * .and
- .true .emit '\0';
-integer_hex_1
- 'x' .or 'X';
-
-integer_oct
- '0' .emit 8 .emit * .and .loop digit_oct .emit * .and .true .emit '\0';
-
-integer_dec
- digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\0';
-
-boolean
- "true" .emit 2 .emit '1' .emit '\0' .or
- "false" .emit 2 .emit '0' .emit '\0';
-
-type_name
- identifier;
-
-field_selection
- identifier;
-
-floatconstant
- float .emit OP_PUSH_FLOAT;
-
-intconstant
- integer .emit OP_PUSH_INT;
-
-boolconstant
- boolean .emit OP_PUSH_BOOL;
-
-optional_space
- .loop single_space;
-
-space
- single_space .and .loop single_space;
-
-single_space
- white_char .or c_style_comment_block .or cpp_style_comment_block;
-
-white_char
- ' ' .or '\t' .or new_line .or '\v' .or '\f';
-
-new_line
- cr_lf .or lf_cr .or '\n' .or '\r';
-
-cr_lf
- '\r' .and '\n';
-
-lf_cr
- '\n' .and '\r';
-
-c_style_comment_block
- '/' .and '*' .and c_style_comment_rest;
-
-c_style_comment_rest
- .loop c_style_comment_char_no_star .and c_style_comment_rest_1;
-c_style_comment_rest_1
- c_style_comment_end .or c_style_comment_rest_2;
-c_style_comment_rest_2
- '*' .and c_style_comment_rest;
-
-c_style_comment_char_no_star
- '\x2B'-'\xFF' .or '\x01'-'\x29';
-
-c_style_comment_end
- '*' .and '/';
-
-cpp_style_comment_block
- '/' .and '/' .and cpp_style_comment_block_1;
-cpp_style_comment_block_1
- cpp_style_comment_block_2 .or cpp_style_comment_block_3;
-cpp_style_comment_block_2
- .loop cpp_style_comment_char .and new_line;
-cpp_style_comment_block_3
- .loop cpp_style_comment_char;
-
-cpp_style_comment_char
- '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C';
-
-/* lexical rules */
-
-/*ampersand
- optional_space .and '&' .and optional_space;*/
-
-ampersandampersand
- optional_space .and '&' .and '&' .and optional_space;
-
-/*ampersandequals
- optional_space .and '&' .and '=' .and optional_space;*/
-
-/*bar
- optional_space .and '|' .and optional_space;*/
-
-barbar
- optional_space .and '|' .and '|' .and optional_space;
-
-/*barequals
- optional_space .and '|' .and '=' .and optional_space;*/
-
-bang
- optional_space .and '!' .and optional_space;
-
-bangequals
- optional_space .and '!' .and '=' .and optional_space;
-
-/*caret
- optional_space .and '^' .and optional_space;*/
-
-caretcaret
- optional_space .and '^' .and '^' .and optional_space;
-
-/*caretequals
- optional_space .and '^' .and '=' .and optional_space;*/
-
-colon
- optional_space .and ':' .and optional_space;
-
-comma
- optional_space .and ',' .and optional_space;
-
-dot
- optional_space .and '.' .and optional_space;
-
-equals
- optional_space .and '=' .and optional_space;
-
-equalsequals
- optional_space .and '=' .and '=' .and optional_space;
-
-greater
- optional_space .and '>' .and optional_space;
-
-greaterequals
- optional_space .and '>' .and '=' .and optional_space;
-
-/*greatergreater
- optional_space .and '>' .and '>' .and optional_space;*/
-
-/*greatergreaterequals
- optional_space .and '>' .and '>' .and '=' .and optional_space;*/
-
-lbrace
- optional_space .and '{' .and optional_space;
-
-lbracket
- optional_space .and '[' .and optional_space;
-
-less
- optional_space .and '<' .and optional_space;
-
-lessequals
- optional_space .and '<' .and '=' .and optional_space;
-
-/*lessless
- optional_space .and '<' .and '<' .and optional_space;*/
-
-/*lesslessequals
- optional_space .and '<' .and '<' .and '=' .and optional_space;*/
-
-lparen
- optional_space .and '(' .and optional_space;
-
-minus
- optional_space .and '-' .and optional_space;
-
-minusequals
- optional_space .and '-' .and '=' .and optional_space;
-
-minusminus
- optional_space .and '-' .and '-' .and optional_space;
-
-/*percent
- optional_space .and '%' .and optional_space;*/
-
-/*percentequals
- optional_space .and '%' .and '=' .and optional_space;*/
-
-plus
- optional_space .and '+' .and optional_space;
-
-plusequals
- optional_space .and '+' .and '=' .and optional_space;
-
-plusplus
- optional_space .and '+' .and '+' .and optional_space;
-
-question
- optional_space .and '?' .and optional_space;
-
-rbrace
- optional_space .and '}' .and optional_space;
-
-rbracket
- optional_space .and ']' .and optional_space;
-
-rparen
- optional_space .and ')' .and optional_space;
-
-semicolon
- optional_space .and ';' .and optional_space;
-
-slash
- optional_space .and '/' .and optional_space;
-
-slashequals
- optional_space .and '/' .and '=' .and optional_space;
-
-star
- optional_space .and '*' .and optional_space;
-
-starequals
- optional_space .and '*' .and '=' .and optional_space;
-
-/*tilde
- optional_space .and '~' .and optional_space;*/
-
-/* string rules - these are used internally by the parser when parsing quoted strings */
-
-.string string_lexer;
-
-string_lexer
- lex_first_identifier_character .and .loop lex_next_identifier_character;
-
-lex_first_identifier_character
- 'a'-'z' .or 'A'-'Z' .or '_';
-
-lex_next_identifier_character
- 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_';
-
-/* error rules - these are used by error messages */
-
-err_token
- '~' .or '`' .or '!' .or '@' .or '#' .or '$' .or '%' .or '^' .or '&' .or '*' .or '(' .or ')' .or
- '-' .or '+' .or '=' .or '|' .or '\\' .or '[' .or ']' .or '{' .or '}' .or ':' .or ';' .or '"' .or
- '\'' .or '<' .or ',' .or '>' .or '.' .or '/' .or '?' .or err_identifier;
-
-err_identifier
- id_character_first .and .loop id_character_next;
-