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entity-array-field-setter generation

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Wolfgang (Blub) Bumiller 2012-11-12 22:31:54 +01:00
parent 3579e495be
commit 89d86420ad
1 changed files with 131 additions and 3 deletions
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134
parser.c
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@ -2327,6 +2327,77 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast
}
}
static ast_expression *array_field_setter_node(
parser_t *parser,
ast_value *array,
ast_value *entity,
ast_value *index,
ast_value *value,
size_t from,
size_t afterend)
{
lex_ctx ctx = ast_ctx(array);
if (from+1 == afterend) {
// set this value
ast_block *block;
ast_return *ret;
ast_entfield *entfield;
ast_array_index *subscript;
int assignop = type_store_instr[value->expression.vtype];
if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
assignop = INSTR_STORE_V;
subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
if (!subscript)
return NULL;
entfield = ast_entfield_new(ctx, (ast_expression*)entity, (ast_expression*)subscript);
if (!entfield) {
ast_delete(subscript);
return NULL;
}
ast_store *st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
if (!st) {
ast_delete(entfield);
return NULL;
}
block = ast_block_new(ctx);
if (!block) {
ast_delete(st);
return NULL;
}
if (!ast_block_exprs_add(block, (ast_expression*)st)) {
ast_delete(block);
return NULL;
}
ret = ast_return_new(ctx, NULL);
if (!ret) {
ast_delete(block);
return NULL;
}
if (!ast_block_exprs_add(block, (ast_expression*)ret)) {
ast_delete(block);
return NULL;
}
return (ast_expression*)block;
} else {
ast_expression *left, *right;
size_t diff = afterend - from;
size_t middle = from + diff/2;
left = array_field_setter_node(parser, array, entity, index, value, from, middle);
right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
return array_accessor_split(parser, array, index, middle, left, right);
}
}
static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
{
lex_ctx ctx = ast_ctx(array);
@ -2435,6 +2506,65 @@ cleanup:
return false;
}
static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
{
ast_expression *root = NULL;
ast_block *body = NULL;
ast_value *entity = NULL;
ast_value *index = NULL;
ast_value *value = NULL;
ast_function *func;
ast_value *fval;
if (!ast_istype(array->expression.next, ast_value)) {
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
return false;
}
if (!parser_create_array_accessor(parser, array, funcname, &fval))
return false;
func = fval->constval.vfunc;
fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
body = ast_block_new(ast_ctx(array));
if (!body) {
parseerror(parser, "failed to create block for array accessor");
goto cleanup;
}
entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
value = ast_value_copy((ast_value*)array->expression.next);
if (!entity || !index || !value) {
parseerror(parser, "failed to create locals for array accessor");
goto cleanup;
}
(void)!ast_value_set_name(value, "value"); /* not important */
(void)!ast_expression_common_params_add(&fval->expression, entity);
(void)!ast_expression_common_params_add(&fval->expression, index);
(void)!ast_expression_common_params_add(&fval->expression, value);
root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
if (!root) {
parseerror(parser, "failed to build accessor search tree");
goto cleanup;
}
(void)!ast_block_exprs_add(body, root);
(void)!ast_function_blocks_add(func, body);
array->setter = fval;
return true;
cleanup:
if (body) ast_delete(body);
if (entity) ast_delete(entity);
if (index) ast_delete(index);
if (value) ast_delete(value);
if (root) ast_delete(root);
ast_delete(func);
ast_delete(fval);
return false;
}
static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
{
ast_expression *root = NULL;
@ -3074,11 +3204,9 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
goto cleanup;
}
/*
snprintf(name, sizeof(name), "%s##SETF", var->name);
if (!parser_create_array_field_setter(parser, var, name))
if (!parser_create_array_field_setter(parser, array, name))
goto cleanup;
*/
telem = ast_type_copy(ast_ctx(var), array->expression.next);
tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);