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get-accessor calling in ast_array_index_codegen

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Wolfgang (Blub) Bumiller 2012-11-11 16:32:59 +01:00
parent 1ab303c528
commit 30d87ee837
1 changed files with 37 additions and 3 deletions
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40
ast.c
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@ -1520,8 +1520,20 @@ bool ast_array_index_codegen(ast_array_index *self, ast_function *func, bool lva
ast_value *arr;
ast_value *idx;
if (!lvalue && self->expression.outr) {
*out = self->expression.outr;
}
if (lvalue && self->expression.outl) {
*out = self->expression.outl;
}
if (!ast_istype(self->array, ast_value)) {
asterror(ast_ctx(self), "array indexing this way is not supported");
/* note this would actually be pointer indexing because the left side is
* not an actual array but (hopefully) an indexable expression.
* Once we get integer arithmetic, and GADDRESS/GSTORE/GLOAD instruction
* support this path will be filled.
*/
return false;
}
@ -1531,10 +1543,32 @@ bool ast_array_index_codegen(ast_array_index *self, ast_function *func, bool lva
return false;
} else {
/* Time to use accessor functions */
/*
ast_expression_codegen *cgen;
ir_value *iridx;
*/
ir_value *iridx, *funval;
ir_instr *call;
if (!arr->getter) {
asterror(ast_ctx(self), "value has no getter, don't know how to index it");
return false;
}
cgen = self->index->expression.codegen;
if (!(*cgen)((ast_expression*)(self->index), func, true, &iridx))
return false;
cgen = arr->getter->expression.codegen;
if (!(*cgen)((ast_expression*)(arr->getter), func, true, &funval))
return false;
call = ir_block_create_call(func->curblock, ast_function_label(func, "fetch"), funval);
if (!call)
return false;
if (!ir_call_param(call, iridx))
return false;
*out = ir_call_value(call);
self->expression.outr = *out;
return true;
}
}