#define ast_instantiate(T, ctx, destroyfn) \
T* self = (T*)mem_a(sizeof(T)); \
+ if (!self) { \
+ return NULL; \
+ } \
ast_node_init((ast_node*)self, ctx); \
( (ast_node*)self )->node.destroy = (ast_node_delete*)destroyfn
mem_d(self);
}
+ast_entfield* ast_entfield_new(lex_ctx ctx, ast_expression *entity, ast_expression *field)
+{
+ ast_instantiate(ast_entfield, ctx, ast_entfield_delete);
+ ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_entfield_codegen);
+
+ self->entity = entity;
+ self->field = field;
+
+ return self;
+}
+
+void ast_entfield_delete(ast_entfield *self)
+{
+ ast_unref(self->entity);
+ ast_unref(self->field);
+ mem_d(self);
+}
+
+ast_ifthen* ast_ifthen_new(lex_ctx ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse)
+{
+ ast_instantiate(ast_ifthen, ctx, ast_ifthen_delete);
+ if (!ontrue && !onfalse) {
+ /* because it is invalid */
+ mem_d(self);
+ return NULL;
+ }
+ ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_ifthen_codegen);
+
+ self->cond = cond;
+ self->on_true = ontrue;
+ self->on_false = onfalse;
+
+ return self;
+}
+
+void ast_ifthen_delete(ast_ifthen *self)
+{
+ ast_unref(self->cond);
+ ast_unref(self->on_true);
+ ast_unref(self->on_false);
+ mem_d(self);
+}
+
ast_store* ast_store_new(lex_ctx ctx, int op,
ast_value *dest, ast_expression *source)
{
/* AST codegen aprt
*/
-bool ast_value_codegen(ast_value *self, ast_function *func, ir_value **out)
+bool ast_value_codegen(ast_value *self, ast_function *func, bool lvalue, ir_value **out)
{
/* NOTE: This is the codegen for a variable used in an expression.
* It is not the codegen to generate the value. For this purpose,
return false;
}
-bool ast_block_codegen(ast_block *self, ast_function *func, ir_value **out)
+bool ast_block_codegen(ast_block *self, ast_function *func, bool lvalue, ir_value **out)
+{
+ return false;
+}
+
+bool ast_store_codegen(ast_store *self, ast_function *func, bool lvalue, ir_value **out)
+{
+ /* NOTE: remember: destination codegen needs to have lvalue=true */
+ return false;
+}
+
+bool ast_binary_codegen(ast_binary *self, ast_function *func, bool lvalue, ir_value **out)
{
return false;
}
-bool ast_store_codegen(ast_store *self, ast_function *func, ir_value **out)
+bool ast_entfield_codegen(ast_entfield *self, ast_function *func, bool lvalue, ir_value **out)
{
return false;
}
-bool ast_binary_codegen(ast_binary *self, ast_function *func, ir_value **out)
+bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_value **out)
{
+ if (out) *out = NULL;
return false;
}