/*
- * Copyright (C) 2012, 2013, 2014
+ * Copyright (C) 2012, 2013, 2014, 2015
* Wolfgang Bumiller
* Dale Weiler
*
static bool ast_binstore_codegen(ast_binstore*, ast_function*, bool lvalue, ir_value**);
static void ast_binary_delete(ast_binary*);
static bool ast_binary_codegen(ast_binary*, ast_function*, bool lvalue, ir_value**);
+static bool ast_state_codegen(ast_state*, ast_function*, bool lvalue, ir_value**);
/* It must not be possible to get here. */
static GMQCC_NORETURN void _ast_node_destroy(ast_node *self)
self->cvq = CV_NONE;
self->hasvalue = false;
self->isimm = false;
+ self->inexact = false;
self->uses = 0;
memset(&self->constval, 0, sizeof(self->constval));
self->initlist = NULL;
self->target = label;
}
+ast_state* ast_state_new(lex_ctx_t ctx, ast_expression *frame, ast_expression *think)
+{
+ ast_instantiate(ast_state, ctx, ast_state_delete);
+ ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_state_codegen);
+ self->framenum = frame;
+ self->nextthink = think;
+ return self;
+}
+
+void ast_state_delete(ast_state *self)
+{
+ if (self->framenum)
+ ast_unref(self->framenum);
+ if (self->nextthink)
+ ast_unref(self->nextthink);
+
+ ast_expression_delete((ast_expression*)self);
+ mem_d(self);
+}
+
ast_call* ast_call_new(lex_ctx_t ctx,
ast_expression *funcexpr)
{
if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
if (self->expression.flags & AST_FLAG_ERASEABLE)
- self->ir_v->flags |= IR_FLAG_ERASEABLE;
+ self->ir_v->flags |= IR_FLAG_ERASABLE;
if (self->expression.flags & AST_FLAG_BLOCK_COVERAGE)
func->flags |= IR_FLAG_BLOCK_COVERAGE;
/* The function is filled later on ast_function_codegen... */
if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
if (self->expression.flags & AST_FLAG_ERASEABLE)
- self->ir_v->flags |= IR_FLAG_ERASEABLE;
+ self->ir_v->flags |= IR_FLAG_ERASABLE;
namelen = strlen(self->name);
name = (char*)mem_a(namelen + 16);
self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
if (self->expression.flags & AST_FLAG_ERASEABLE)
- self->ir_v->flags |= IR_FLAG_ERASEABLE;
+ self->ir_v->flags |= IR_FLAG_ERASABLE;
}
return true;
}
if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
v->flags |= IR_FLAG_INCLUDE_DEF;
if (self->expression.flags & AST_FLAG_ERASEABLE)
- self->ir_v->flags |= IR_FLAG_ERASEABLE;
+ self->ir_v->flags |= IR_FLAG_ERASABLE;
namelen = strlen(self->name);
name = (char*)mem_a(namelen + 16);
if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
if (self->expression.flags & AST_FLAG_ERASEABLE)
- self->ir_v->flags |= IR_FLAG_ERASEABLE;
+ self->ir_v->flags |= IR_FLAG_ERASABLE;
/* initialize */
if (self->hasvalue) {
return true;
}
+#include <stdio.h>
+bool ast_state_codegen(ast_state *self, ast_function *func, bool lvalue, ir_value **out)
+{
+ ast_expression_codegen *cgen;
+
+ ir_value *frameval, *thinkval;
+
+ if (lvalue) {
+ compile_error(ast_ctx(self), "not an l-value (state operation)");
+ return false;
+ }
+ if (self->expression.outr) {
+ compile_error(ast_ctx(self), "internal error: ast_state cannot be reused!");
+ return false;
+ }
+ *out = NULL;
+
+ cgen = self->framenum->codegen;
+ if (!(*cgen)((ast_expression*)(self->framenum), func, false, &frameval))
+ return false;
+ if (!frameval)
+ return false;
+
+ cgen = self->nextthink->codegen;
+ if (!(*cgen)((ast_expression*)(self->nextthink), func, false, &thinkval))
+ return false;
+ if (!frameval)
+ return false;
+
+ if (!ir_block_create_state_op(func->curblock, ast_ctx(self), frameval, thinkval)) {
+ compile_error(ast_ctx(self), "failed to create STATE instruction");
+ return false;
+ }
+
+ self->expression.outr = (ir_value*)1;
+ return true;
+}
+
bool ast_call_codegen(ast_call *self, ast_function *func, bool lvalue, ir_value **out)
{
ast_expression_codegen *cgen;