X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=ast.c;h=0b61fe0653afbf5b6b6701ff714d0ee98899656c;hb=8dccf69060478c5665052dddaa6845d9e5d34f6c;hp=56db3f94f872b678930e934ea9ca679c20bd4b25;hpb=31ba1ec6c1302aa466bd25b9e275b5cc16303808;p=xonotic%2Fgmqcc.git

diff --git a/ast.c b/ast.c
index 56db3f9..0b61fe0 100644
--- a/ast.c
+++ b/ast.c
@@ -32,7 +32,7 @@
     if (!self) {                                                    \
         return NULL;                                                \
     }                                                               \
-    ast_node_init((ast_node*)self, ctx);                            \
+    ast_node_init((ast_node*)self, ctx, TYPE_##T);                  \
     ( (ast_node*)self )->node.destroy = (ast_node_delete*)destroyfn
 
 /* It must not be possible to get here. */
@@ -43,11 +43,12 @@ static GMQCC_NORETURN void _ast_node_destroy(ast_node *self)
 }
 
 /* Initialize main ast node aprts */
-static void ast_node_init(ast_node *self, lex_ctx ctx)
+static void ast_node_init(ast_node *self, lex_ctx ctx, int nodetype)
 {
     self->node.context = ctx;
     self->node.destroy = &_ast_node_destroy;
     self->node.keep    = false;
+    self->node.nodetype = nodetype;
 }
 
 /* General expression initialization */
@@ -57,12 +58,18 @@ static void ast_expression_init(ast_expression *self,
     self->expression.codegen = codegen;
     self->expression.vtype   = TYPE_VOID;
     self->expression.next    = NULL;
+    MEM_VECTOR_INIT(&self->expression, params);
 }
 
 static void ast_expression_delete(ast_expression *self)
 {
+    size_t i;
     if (self->expression.next)
         ast_delete(self->expression.next);
+    for (i = 0; i < self->expression.params_count; ++i) {
+        ast_delete(self->expression.params[i]);
+    }
+    MEM_VECTOR_CLEAR(&self->expression, params);
 }
 
 static void ast_expression_delete_full(ast_expression *self)
@@ -71,9 +78,26 @@ static void ast_expression_delete_full(ast_expression *self)
     mem_d(self);
 }
 
+MEM_VEC_FUNCTIONS(ast_expression_common, ast_value*, params)
+
+static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex);
+static ast_value* ast_value_copy(const ast_value *self)
+{
+    ast_value *cp = ast_value_new(self->expression.node.context, self->name, self->expression.vtype);
+    if (self->expression.next) {
+        cp->expression.next = ast_type_copy(self->expression.node.context, self->expression.next);
+        if (!cp->expression.next) {
+            ast_value_delete(cp);
+            return NULL;
+        }
+    }
+    return cp;
+}
+
 static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
 {
-    const ast_expression_common *cpex;
+    size_t i;
+    const ast_expression_common *fromex;
     ast_expression_common *selfex;
 
     if (!ex)
@@ -82,23 +106,32 @@ static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
     {
         ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
 
-        cpex   = &ex->expression;
+        fromex   = &ex->expression;
         selfex = &self->expression;
 
-        selfex->vtype = cpex->vtype;
-        if (cpex->next)
+        /* This may never be codegen()d */
+        selfex->codegen = NULL;
+
+        selfex->vtype = fromex->vtype;
+        if (fromex->next)
         {
-            selfex->next = ast_type_copy(ctx, cpex->next);
+            selfex->next = ast_type_copy(ctx, fromex->next);
             if (!selfex->next) {
-                mem_d(self);
+                ast_expression_delete_full(self);
                 return NULL;
             }
         }
         else
             selfex->next = NULL;
 
-        /* This may never be codegen()d */
-        selfex->codegen = NULL;
+        for (i = 0; i < fromex->params_count; ++i) {
+            ast_value *v = ast_value_copy(fromex->params[i]);
+            if (!v || !ast_expression_common_params_add(selfex, v)) {
+                ast_expression_delete_full(self);
+                return NULL;
+            }
+        }
+
         return self;
     }
 }
@@ -113,7 +146,6 @@ ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
     self->name = name ? util_strdup(name) : NULL;
     self->expression.vtype = t;
     self->expression.next  = NULL;
-    MEM_VECTOR_INIT(self, params);
     self->isconst = false;
     memset(&self->constval, 0, sizeof(self->constval));
 
@@ -121,16 +153,11 @@ ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
 
     return self;
 }
-MEM_VEC_FUNCTIONS(ast_value, ast_value*, params)
 
 void ast_value_delete(ast_value* self)
 {
-    size_t i;
     if (self->name)
         mem_d((void*)self->name);
-    for (i = 0; i < self->params_count; ++i)
-        ast_value_delete(self->params[i]); /* delete, the ast_function is expected to die first */
-    MEM_VECTOR_CLEAR(self, params);
     if (self->isconst) {
         switch (self->expression.vtype)
         {
@@ -152,6 +179,11 @@ void ast_value_delete(ast_value* self)
     mem_d(self);
 }
 
+bool GMQCC_WARN ast_value_params_add(ast_value *self, ast_value *p)
+{
+    return ast_expression_common_params_add(&self->expression, p);
+}
+
 bool ast_value_set_name(ast_value *self, const char *name)
 {
     if (self->name)
@@ -200,8 +232,7 @@ void ast_unary_delete(ast_unary *self)
     mem_d(self);
 }
 
-ast_return* ast_return_new(lex_ctx ctx, int op,
-                         ast_expression *expr)
+ast_return* ast_return_new(lex_ctx ctx, ast_expression *expr)
 {
     ast_instantiate(ast_return, ctx, ast_return_delete);
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_return_codegen);
@@ -374,7 +405,7 @@ void ast_call_delete(ast_call *self)
 }
 
 ast_store* ast_store_new(lex_ctx ctx, int op,
-                         ast_value *dest, ast_expression *source)
+                         ast_expression *dest, ast_expression *source)
 {
     ast_instantiate(ast_store, ctx, ast_store_delete);
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_store_codegen);
@@ -421,6 +452,19 @@ void ast_block_delete(ast_block *self)
     mem_d(self);
 }
 
+bool ast_block_set_type(ast_block *self, ast_expression *from)
+{
+    if (self->expression.next)
+        ast_delete(self->expression.next);
+    self->expression.vtype = from->expression.vtype;
+    if (from->expression.next) {
+        self->expression.next = ast_type_copy(self->expression.node.context, from->expression.next);
+        if (!self->expression.next)
+            return false;
+    }
+    return true;
+}
+
 ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype)
 {
     ast_instantiate(ast_function, ctx, ast_function_delete);
@@ -638,6 +682,7 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
 {
     ir_function *irf;
     ir_value    *dummy;
+    ast_expression_common *ec;
     size_t    i;
 
     irf = self->ir_func;
@@ -647,12 +692,13 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
     }
 
     /* fill the parameter list */
-    for (i = 0; i < self->vtype->params_count; ++i)
+    ec = &self->vtype->expression;
+    for (i = 0; i < ec->params_count; ++i)
     {
-        if (!ir_function_params_add(irf, self->vtype->params[i]->expression.vtype))
+        if (!ir_function_params_add(irf, ec->params[i]->expression.vtype))
             return false;
         if (!self->builtin) {
-            if (!ast_local_codegen(self->vtype->params[i], self->ir_func, true))
+            if (!ast_local_codegen(ec->params[i], self->ir_func, true))
                 return false;
         }
     }
@@ -1327,6 +1373,7 @@ bool ast_call_codegen(ast_call *self, ast_function *func, bool lvalue, ir_value
 
     *out = ir_call_value(callinstr);
 
+    MEM_VECTOR_CLEAR(&params, v);
     return true;
 error:
     MEM_VECTOR_CLEAR(&params, v);