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Prefix ++,--

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This commit is contained in:
Wolfgang (Blub) Bumiller 2012-11-23 11:52:03 +01:00
parent 9a43eb6370
commit 38f5090778
1 changed files with 23 additions and 1 deletions

24
parser.c
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@ -413,7 +413,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
ast_expression *exprs[3];
ast_block *blocks[3];
ast_value *asvalue[3];
size_t i, assignop;
size_t i, assignop, addop;
qcint generated_op = 0;
char ty1[1024];
@ -878,6 +878,28 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
}
out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
break;
case opid3('+','+','P'):
case opid3('-','-','P'):
/* prefix ++ */
if (exprs[0]->expression.vtype != TYPE_FLOAT) {
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
parseerror(parser, "invalid type for prefix increment: %s", ty1);
return false;
}
if (op->id == opid3('+','+','P'))
addop = INSTR_ADD_F;
else
addop = INSTR_SUB_F;
if (ast_istype(exprs[0], ast_entfield)) {
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
exprs[0],
(ast_expression*)parser_const_float(parser, 1));
} else {
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
exprs[0],
(ast_expression*)parser_const_float(parser, 1));
}
break;
case opid2('+','='):
case opid2('-','='):
if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||