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/*
* Mesa 3-D graphics library
* Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul 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.
*/
#ifndef SLANG_COMPILE_OPERATION_H
#define SLANG_COMPILE_OPERATION_H
#if defined __cplusplus
extern "C" {
#endif
/**
* Types of slang operations.
* These are the basic intermediate code representations.
* [foo] indicates a sub-tree or reference to another type of node
*/
typedef enum slang_operation_type_
{
slang_oper_none,
slang_oper_block_no_new_scope, /* "{" sequence "}" */
slang_oper_block_new_scope, /* "{" sequence "}" */
slang_oper_variable_decl, /* [type] [var] or [var] = [expr] */
slang_oper_asm,
slang_oper_break, /* "break" statement */
slang_oper_continue, /* "continue" statement */
slang_oper_discard, /* "discard" (kill fragment) statement */
slang_oper_return, /* "return" [expr] */
slang_oper_expression, /* [expr] */
slang_oper_if, /* "if" [0] then [1] else [2] */
slang_oper_while, /* "while" [cond] [body] */
slang_oper_do, /* "do" [body] "while" [cond] */
slang_oper_for, /* "for" [init] [while] [incr] [body] */
slang_oper_void, /* nop */
slang_oper_literal_bool, /* "true" or "false" */
slang_oper_literal_int, /* integer literal */
slang_oper_literal_float, /* float literal */
slang_oper_identifier, /* var name, func name, etc */
slang_oper_sequence, /* [expr] "," [expr] "," etc */
slang_oper_assign, /* [var] "=" [expr] */
slang_oper_addassign, /* [var] "+=" [expr] */
slang_oper_subassign, /* [var] "-=" [expr] */
slang_oper_mulassign, /* [var] "*=" [expr] */
slang_oper_divassign, /* [var] "/=" [expr] */
/*slang_oper_modassign, */
/*slang_oper_lshassign, */
/*slang_oper_rshassign, */
/*slang_oper_orassign, */
/*slang_oper_xorassign, */
/*slang_oper_andassign, */
slang_oper_select, /* [expr] "?" [expr] ":" [expr] */
slang_oper_logicalor, /* [expr] "||" [expr] */
slang_oper_logicalxor, /* [expr] "^^" [expr] */
slang_oper_logicaland, /* [expr] "&&" [expr] */
/*slang_oper_bitor, */
/*slang_oper_bitxor, */
/*slang_oper_bitand, */
slang_oper_equal, /* [expr] "==" [expr] */
slang_oper_notequal, /* [expr] "!=" [expr] */
slang_oper_less, /* [expr] "<" [expr] */
slang_oper_greater, /* [expr] ">" [expr] */
slang_oper_lessequal, /* [expr] "<=" [expr] */
slang_oper_greaterequal, /* [expr] ">=" [expr] */
/*slang_oper_lshift, */
/*slang_oper_rshift, */
slang_oper_add, /* [expr] "+" [expr] */
slang_oper_subtract, /* [expr] "-" [expr] */
slang_oper_multiply, /* [expr] "*" [expr] */
slang_oper_divide, /* [expr] "/" [expr] */
/*slang_oper_modulus, */
slang_oper_preincrement, /* "++" [var] */
slang_oper_predecrement, /* "--" [var] */
slang_oper_plus, /* "-" [expr] */
slang_oper_minus, /* "+" [expr] */
/*slang_oper_complement, */
slang_oper_not, /* "!" [expr] */
slang_oper_subscript, /* [expr] "[" [expr] "]" */
slang_oper_call, /* [func name] [param] [param] [...] */
slang_oper_field, /* i.e.: ".next" or ".xzy" or ".xxx" etc */
slang_oper_postincrement, /* [var] "++" */
slang_oper_postdecrement /* [var] "--" */
} slang_operation_type;
/**
* A slang_operation is basically a compiled instruction (such as assignment,
* a while-loop, a conditional, a multiply, a function call, etc).
* NOTE: This structure could have been implemented as a union of simpler
* structs which would correspond to the operation types above.
*/
typedef struct slang_operation_
{
slang_operation_type type;
struct slang_operation_ *children;
unsigned int num_children;
float literal; /**< Used for float, int and bool values */
slang_atom a_id; /**< type: asm, identifier, call, field */
slang_variable_scope *locals; /**< local vars for scope */
} slang_operation;
extern int slang_operation_construct(slang_operation *);
extern void slang_operation_destruct(slang_operation *);
extern int slang_operation_copy(slang_operation *, const slang_operation *);
#ifdef __cplusplus
}
#endif
#endif /* SLANG_COMPILE_OPERATION_H */
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