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prototypes for ast_binstore, and storing outl/outr in ast_expression_common, TODO: let ast_codegen functions reuse previous results so that binstore can call codegen twice

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Wolfgang (Blub) Bumiller 2012-08-13 19:39:35 +02:00
parent 633561a730
commit 406a32bea6
1 changed files with 31 additions and 0 deletions
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31
ast.h
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@ -36,6 +36,7 @@ typedef struct ast_function_s ast_function;
typedef struct ast_block_s ast_block;
typedef struct ast_binary_s ast_binary;
typedef struct ast_store_s ast_store;
typedef struct ast_binstore_s ast_binstore;
typedef struct ast_entfield_s ast_entfield;
typedef struct ast_ifthen_s ast_ifthen;
typedef struct ast_ternary_s ast_ternary;
@ -53,6 +54,7 @@ enum {
TYPE_ast_block,
TYPE_ast_binary,
TYPE_ast_store,
TYPE_ast_binstore,
TYPE_ast_entfield,
TYPE_ast_ifthen,
TYPE_ast_ternary,
@ -104,6 +106,13 @@ typedef struct
int vtype;
ast_expression *next;
MEM_VECTOR_MAKE(ast_value*, params);
/* The codegen functions should store their output values
* so we can call it multiple times without re-evaluating.
* Store lvalue and rvalue seperately though. So that
* ast_entfield for example can generate both if required.
*/
ir_value *outl;
ir_value *outr;
} ast_expression_common;
MEM_VECTOR_PROTO(ast_expression_common, ast_value*, params);
@ -170,6 +179,28 @@ void ast_binary_delete(ast_binary*);
bool ast_binary_codegen(ast_binary*, ast_function*, bool lvalue, ir_value**);
/* Binstore
*
* An assignment including a binary expression with the source as left operand.
* Eg. a += b; is a binstore { INSTR_STORE, INSTR_ADD, a, b }
*/
struct ast_binstore_s
{
ast_expression_common expression;
int opstore;
int opbin;
ast_expression *left;
ast_expression *right;
};
ast_binstore* ast_binstore_new(lex_ctx ctx,
int op,
ast_expression *left,
ast_expression *right);
void ast_binstore_delete(ast_binstore*);
bool ast_binstore_codegen(ast_binstore*, ast_function*, bool lvalue, ir_value**);
/* Unary
*
* Regular unary expressions: not,neg