mojoshader_parser_hlsl.lemon
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/**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
// This is a Lemon Parser grammar for HLSL. It is based on an ANSI C YACC
// grammar by Jeff Lee: http://www.lysator.liu.se/c/ANSI-C-grammar-y.html
// Lemon is here: http://www.hwaci.com/sw/lemon/ ... the source is included
// with MojoShader, and built with the library, so you don't have to track
// down the dependency.
// HLSL syntax is described, informally, here:
// http://msdn.microsoft.com/en-us/library/bb509615(VS.85).aspx
%name ParseHLSL
%start_symbol shader
%token_prefix TOKEN_HLSL_
%token_type { IncludeState * }
%extra_argument { Context *ctx }
%include {
#define __MOJOSHADER_INTERNAL__ 1
#include "mojoshader_internal.h"
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%parse_failure {
fprintf(stderr,"Giving up. Parser is hopelessly lost...\n");
}
%stack_overflow {
fprintf(stderr,"Giving up. Parser stack overflow\n");
}
// operator precedence (matches C spec)...
%left COMMA.
%right ASSIGN ADDASSIGN SUBASSIGN MULASSIGN DIVASSIGN MODASSIGN LSHIFTASSIGN
RSHIFTASSIGN ANDASSIGN ORASSIGN XORASSIGN.
%right QUESTION.
%left OROR.
%left ANDAND.
%left OR.
%left XOR.
%left AND.
%left EQL NEQ.
%left LT LEQ GT GEQ.
%left LSHIFT RSHIFT.
%left PLUS MINUS.
%left STAR SLASH PERCENT.
%right TYPECAST EXCLAMATION COMPLEMENT MINUSMINUS PLUSPLUS.
%left DOT LBRACKET RBRACKET LPAREN RPAREN.
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// bump up the precedence of ELSE, to avoid shift/reduce conflict on the
// usual "dangling else ambiguity" ...
%right ELSE.
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// The rules...
shader ::= file.
primary_expr ::= identifier.
primary_expr ::= CONSTANT.
primary_expr ::= STRING_LITERAL.
primary_expr ::= LPAREN expr RPAREN.
postfix_expr ::= primary_expr.
postfix_expr ::= postfix_expr LBRACKET expr RBRACKET.
postfix_expr ::= postfix_expr LPAREN RPAREN.
postfix_expr ::= postfix_expr LPAREN argument_expr_list RPAREN.
postfix_expr ::= postfix_expr DOT identifier.
postfix_expr ::= postfix_expr PTR_OP identifier.
postfix_expr ::= postfix_expr INC_OP.
postfix_expr ::= postfix_expr DEC_OP.
argument_expr_list ::= assignment_expr.
argument_expr_list ::= argument_expr_list COMMA assignment_expr.
unary_expr ::= postfix_expr.
unary_expr ::= INC_OP unary_expr.
unary_expr ::= DEC_OP unary_expr.
unary_expr ::= unary_operator cast_expr.
unary_expr ::= SIZEOF unary_expr.
unary_expr ::= SIZEOF LPAREN type_name RPAREN.
unary_operator ::= AND.
unary_operator ::= STAR.
unary_operator ::= PLUS.
unary_operator ::= MINUS.
unary_operator ::= COMPLEMENT.
unary_operator ::= EXCLAMATION.
cast_expr ::= unary_expr.
cast_expr ::= LPAREN type_name RPAREN cast_expr.
multiplicative_expr ::= cast_expr.
multiplicative_expr ::= multiplicative_expr STAR cast_expr.
multiplicative_expr ::= multiplicative_expr SLASH cast_expr.
multiplicative_expr ::= multiplicative_expr PERCENT cast_expr.
additive_expr ::= multiplicative_expr.
additive_expr ::= additive_expr PLUS multiplicative_expr.
additive_expr ::= additive_expr MINUS multiplicative_expr.
shift_expr ::= additive_expr.
shift_expr ::= shift_expr LSHIFT additive_expr.
shift_expr ::= shift_expr RSHIFT additive_expr.
relational_expr ::= shift_expr.
relational_expr ::= relational_expr LT shift_expr.
relational_expr ::= relational_expr GT shift_expr.
relational_expr ::= relational_expr LEQ shift_expr.
relational_expr ::= relational_expr GEQ shift_expr.
equality_expr ::= relational_expr.
equality_expr ::= equality_expr EQL relational_expr.
equality_expr ::= equality_expr NEQ relational_expr.
and_expr ::= equality_expr.
and_expr ::= and_expr AND equality_expr.
exclusive_or_expr ::= and_expr.
exclusive_or_expr ::= exclusive_or_expr XOR and_expr.
inclusive_or_expr ::= exclusive_or_expr.
inclusive_or_expr ::= inclusive_or_expr OR exclusive_or_expr.
logical_and_expr ::= inclusive_or_expr.
logical_and_expr ::= logical_and_expr ANDAND inclusive_or_expr.
logical_or_expr ::= logical_and_expr.
logical_or_expr ::= logical_or_expr OROR logical_and_expr.
conditional_expr ::= logical_or_expr.
conditional_expr ::= logical_or_expr QUESTION logical_or_expr COLON conditional_expr.
assignment_expr ::= conditional_expr.
assignment_expr ::= unary_expr assignment_operator assignment_expr.
assignment_operator ::= ASSIGN.
assignment_operator ::= MULASSIGN.
assignment_operator ::= DIVASSIGN.
assignment_operator ::= MODASSIGN.
assignment_operator ::= ADDASSIGN.
assignment_operator ::= SUBASSIGN.
assignment_operator ::= LSHIFTASSIGN.
assignment_operator ::= RSHIFTASSIGN.
assignment_operator ::= ANDASSIGN.
assignment_operator ::= XORASSIGN.
assignment_operator ::= ORASSIGN.
expr ::= assignment_expr.
expr ::= expr COMMA assignment_expr.
constant_expr ::= conditional_expr.
declaration ::= declaration_specifiers SEMICOLON.
declaration ::= declaration_specifiers init_declarator_list SEMICOLON.
declaration_specifiers ::= storage_class_specifier.
declaration_specifiers ::= storage_class_specifier declaration_specifiers.
declaration_specifiers ::= type_specifier.
declaration_specifiers ::= type_specifier declaration_specifiers.
init_declarator_list ::= init_declarator.
init_declarator_list ::= init_declarator_list COMMA init_declarator.
init_declarator ::= declarator.
init_declarator ::= declarator ASSIGN initializer.
storage_class_specifier ::= TYPEDEF.
storage_class_specifier ::= EXTERN.
storage_class_specifier ::= STATIC.
storage_class_specifier ::= AUTO.
storage_class_specifier ::= REGISTER.
type_specifier ::= CHAR.
type_specifier ::= SHORT.
type_specifier ::= INT.
type_specifier ::= LONG.
type_specifier ::= SIGNED.
type_specifier ::= UNSIGNED.
type_specifier ::= FLOAT.
type_specifier ::= DOUBLE.
type_specifier ::= CONST.
type_specifier ::= VOLATILE.
type_specifier ::= VOID.
type_specifier ::= struct_or_union_specifier.
type_specifier ::= enum_specifier.
type_specifier ::= TYPE_NAME.
struct_or_union_specifier ::= struct_or_union identifier LBRACE
struct_declaration_list RBRACE.
struct_or_union_specifier ::= struct_or_union LBRACE struct_declaration_list
RBRACE.
struct_or_union_specifier ::= struct_or_union identifier.
struct_or_union ::= STRUCT.
struct_or_union ::= UNION.
struct_declaration_list ::= struct_declaration.
struct_declaration_list ::= struct_declaration_list struct_declaration.
struct_declaration ::= type_specifier_list struct_declarator_list SEMICOLON.
struct_declarator_list ::= struct_declarator.
struct_declarator_list ::= struct_declarator_list COMMA struct_declarator.
struct_declarator ::= declarator.
struct_declarator ::= COLON constant_expr.
struct_declarator ::= declarator COLON constant_expr.
enum_specifier ::= ENUM LBRACE enumerator_list RBRACE.
enum_specifier ::= ENUM identifier LBRACE enumerator_list RBRACE.
enum_specifier ::= ENUM identifier.
enumerator_list ::= enumerator.
enumerator_list ::= enumerator_list COMMA enumerator.
enumerator ::= identifier.
enumerator ::= identifier ASSIGN constant_expr.
declarator ::= declarator2.
declarator ::= pointer declarator2.
declarator2 ::= identifier.
declarator2 ::= LPAREN declarator RPAREN.
declarator2 ::= declarator2 LBRACKET RBRACKET.
declarator2 ::= declarator2 LBRACKET constant_expr RBRACKET.
declarator2 ::= declarator2 LPAREN RPAREN.
declarator2 ::= declarator2 LPAREN parameter_type_list RPAREN.
declarator2 ::= declarator2 LPAREN parameter_identifier_list RPAREN.
pointer ::= STAR.
pointer ::= STAR type_specifier_list.
pointer ::= STAR pointer.
pointer ::= STAR type_specifier_list pointer.
type_specifier_list ::= type_specifier.
type_specifier_list ::= type_specifier_list type_specifier.
parameter_identifier_list ::= identifier_list.
parameter_identifier_list ::= identifier_list COMMA ELIPSIS.
identifier_list ::= identifier.
identifier_list ::= identifier_list COMMA identifier.
parameter_type_list ::= parameter_list.
parameter_type_list ::= parameter_list COMMA ELIPSIS.
parameter_list ::= parameter_declaration.
parameter_list ::= parameter_list COMMA parameter_declaration.
parameter_declaration ::= type_specifier_list declarator.
parameter_declaration ::= type_name.
type_name ::= type_specifier_list.
type_name ::= type_specifier_list abstract_declarator.
abstract_declarator ::= pointer.
abstract_declarator ::= abstract_declarator2.
abstract_declarator ::= pointer abstract_declarator2.
abstract_declarator2 ::= LPAREN abstract_declarator RPAREN.
abstract_declarator2 ::= LBRACKET RBRACKET.
abstract_declarator2 ::= LBRACKET constant_expr RBRACKET.
abstract_declarator2 ::= abstract_declarator2 LBRACKET RBRACKET.
abstract_declarator2 ::= abstract_declarator2 LBRACKET constant_expr RBRACKET.
abstract_declarator2 ::= LPAREN RPAREN.
abstract_declarator2 ::= LPAREN parameter_type_list RPAREN.
abstract_declarator2 ::= abstract_declarator2 LPAREN RPAREN.
abstract_declarator2 ::= abstract_declarator2 LPAREN parameter_type_list RPAREN.
initializer ::= assignment_expr.
initializer ::= LBRACE initializer_list RBRACE.
initializer ::= LBRACE initializer_list COMMA RBRACE.
initializer_list ::= initializer.
initializer_list ::= initializer_list COMMA initializer.
statement ::= labeled_statement.
statement ::= compound_statement.
statement ::= expression_statement.
statement ::= selection_statement.
statement ::= iteration_statement.
statement ::= jump_statement.
labeled_statement ::= identifier COLON statement.
labeled_statement ::= CASE constant_expr COLON statement.
labeled_statement ::= DEFAULT COLON statement.
compound_statement ::= LBRACE RBRACE.
compound_statement ::= LBRACE statement_list RBRACE.
compound_statement ::= LBRACE declaration_list RBRACE.
compound_statement ::= LBRACE declaration_list statement_list RBRACE.
declaration_list ::= declaration.
declaration_list ::= declaration_list declaration.
statement_list ::= statement.
statement_list ::= statement_list statement.
expression_statement ::= SEMICOLON.
expression_statement ::= expr SEMICOLON.
selection_statement ::= IF LPAREN expr RPAREN statement.
selection_statement ::= IF LPAREN expr RPAREN statement ELSE statement.
selection_statement ::= SWITCH LPAREN expr RPAREN statement.
iteration_statement ::= WHILE LPAREN expr RPAREN statement.
iteration_statement ::= DO statement WHILE LPAREN expr RPAREN SEMICOLON.
iteration_statement ::= FOR LPAREN SEMICOLON SEMICOLON RPAREN statement.
iteration_statement ::= FOR LPAREN SEMICOLON SEMICOLON expr RPAREN statement.
iteration_statement ::= FOR LPAREN SEMICOLON expr SEMICOLON RPAREN statement.
iteration_statement ::= FOR LPAREN SEMICOLON expr SEMICOLON expr RPAREN statement.
iteration_statement ::= FOR LPAREN expr SEMICOLON SEMICOLON RPAREN statement.
iteration_statement ::= FOR LPAREN expr SEMICOLON SEMICOLON expr RPAREN statement.
iteration_statement ::= FOR LPAREN expr SEMICOLON expr SEMICOLON RPAREN statement.
iteration_statement ::= FOR LPAREN expr SEMICOLON expr SEMICOLON expr RPAREN statement.
jump_statement ::= GOTO identifier SEMICOLON.
jump_statement ::= CONTINUE SEMICOLON.
jump_statement ::= BREAK SEMICOLON.
jump_statement ::= RETURN SEMICOLON.
jump_statement ::= RETURN expr SEMICOLON.
file ::= external_definition.
file ::= file external_definition.
external_definition ::= function_definition.
external_definition ::= declaration.
function_definition ::= declarator function_body.
function_definition ::= declaration_specifiers declarator function_body.
function_body ::= compound_statement.
function_body ::= declaration_list compound_statement.
identifier ::= IDENTIFIER.
// end of mojoshader_parser_hlsl.lemon ...