* "main" ast node types for now.
*/
-typedef union ast_node_u ast_node;
-typedef union ast_expression_u ast_expression;
+typedef struct ast_node_common ast_node;
+typedef struct ast_expression_common ast_expression;
typedef struct ast_value_s ast_value;
typedef struct ast_function_s ast_function;
typedef struct ast_switch_s ast_switch;
typedef struct ast_label_s ast_label;
typedef struct ast_goto_s ast_goto;
+typedef struct ast_argpipe_s ast_argpipe;
enum {
TYPE_ast_node, /* 0 */
TYPE_ast_breakcont, /* 17 */
TYPE_ast_switch, /* 18 */
TYPE_ast_label, /* 19 */
- TYPE_ast_goto /* 20 */
+ TYPE_ast_goto, /* 20 */
+ TYPE_ast_argpipe /* 21 */
};
-#define ast_istype(x, t) ( ((ast_node_common*)x)->nodetype == (TYPE_##t) )
-#define ast_ctx(node) (((ast_node_common*)(node))->context)
-#define ast_side_effects(node) (((ast_node_common*)(node))->side_effects)
+#define ast_istype(x, t) ( ((ast_node*)x)->nodetype == (TYPE_##t) )
+#define ast_ctx(node) (((ast_node*)(node))->context)
+#define ast_side_effects(node) (((ast_node*)(node))->side_effects)
/* Node interface with common components
*/
typedef void ast_node_delete(ast_node*);
-typedef struct
+struct ast_node_common
{
lex_ctx context;
/* I don't feel comfortable using keywords like 'delete' as names... */
*/
bool keep;
bool side_effects;
-} ast_node_common;
-
-#define ast_delete(x) (*( ((ast_node*)(x))->node.destroy ))((ast_node*)(x))
-#define ast_unref(x) do \
-{ \
- if (! (((ast_node*)(x))->node.keep) ) { \
- ast_delete(x); \
- } \
+};
+
+#define ast_delete(x) (*( ((ast_node*)(x))->destroy ))((ast_node*)(x))
+#define ast_unref(x) do \
+{ \
+ if (! (((ast_node*)(x))->keep) ) { \
+ ast_delete(x); \
+ } \
} while(0)
/* Expression interface
* type `expression`, so the ast_ident's codegen would search for
* variables through the environment (or functions, constants...).
*/
-typedef struct
+struct ast_expression_common
{
- ast_node_common node;
+ ast_node node;
ast_expression_codegen *codegen;
int vtype;
ast_expression *next;
*/
ir_value *outl;
ir_value *outr;
-} ast_expression_common;
+};
#define AST_FLAG_VARIADIC (1<<0)
#define AST_FLAG_NORETURN (1<<1)
#define AST_FLAG_INLINE (1<<2)
#define AST_FLAG_INCLUDE_DEF (1<<5)
#define AST_FLAG_IS_VARARG (1<<6)
#define AST_FLAG_ALIAS (1<<7)
+/* An array declared as []
+ * so that the size is taken from the initializer */
+#define AST_FLAG_ARRAY_INIT (1<<8)
#define AST_FLAG_TYPE_MASK (AST_FLAG_VARIADIC | AST_FLAG_NORETURN)
/* Value
} basic_value_t;
struct ast_value_s
{
- ast_expression_common expression;
+ ast_expression expression;
const char *name;
const char *desc;
const char *argcounter;
- /*
- int vtype;
- ast_value *next;
- */
-
int cvq; /* const/var qualifier */
bool isfield; /* this declares a field */
bool isimm; /* an immediate, not just const */
void ast_type_to_string(ast_expression *e, char *buf, size_t bufsize);
typedef enum ast_binary_ref_s {
+ AST_REF_NONE = 0,
AST_REF_LEFT = 1 << 1,
AST_REF_RIGHT = 1 << 2,
AST_REF_ALL = (AST_REF_LEFT | AST_REF_RIGHT)
*/
struct ast_binary_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *left;
*/
struct ast_binstore_s
{
- ast_expression_common expression;
+ ast_expression expression;
int opstore;
int opbin;
*/
struct ast_unary_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *operand;
*/
struct ast_return_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *operand;
};
ast_return* ast_return_new(lex_ctx ctx,
*/
struct ast_entfield_s
{
- ast_expression_common expression;
+ ast_expression expression;
/* The entity can come from an expression of course. */
ast_expression *entity;
/* As can the field, it just must result in a value of TYPE_FIELD */
*/
struct ast_member_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *owner;
unsigned int field;
const char *name;
*/
struct ast_array_index_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *array;
ast_expression *index;
};
ast_array_index* ast_array_index_new(lex_ctx ctx, ast_expression *array, ast_expression *index);
+/* Vararg pipe node:
+ *
+ * copy all varargs starting from a specific index
+ */
+struct ast_argpipe_s
+{
+ ast_expression expression;
+ ast_expression *index;
+};
+ast_argpipe* ast_argpipe_new(lex_ctx ctx, ast_expression *index);
+
/* Store
*
* Stores left<-right and returns left.
*/
struct ast_store_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *dest;
ast_expression *source;
*/
struct ast_ifthen_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *on_true;
*/
struct ast_ternary_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *on_true;
*/
struct ast_loop_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *initexpr;
ast_expression *precond;
ast_expression *postcond;
*/
struct ast_breakcont_s
{
- ast_expression_common expression;
+ ast_expression expression;
bool is_continue;
unsigned int levels;
};
} ast_switch_case;
struct ast_switch_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *operand;
ast_switch_case *cases;
*/
struct ast_label_s
{
- ast_expression_common expression;
+ ast_expression expression;
const char *name;
ir_block *irblock;
ast_goto **gotos;
*/
struct ast_goto_s
{
- ast_expression_common expression;
+ ast_expression expression;
const char *name;
ast_label *target;
ir_block *irblock_from;
*/
struct ast_call_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *func;
ast_expression* *params;
ast_expression *va_count;
};
ast_call* ast_call_new(lex_ctx ctx,
ast_expression *funcexpr);
-bool ast_call_check_types(ast_call*);
+bool ast_call_check_types(ast_call*, ast_expression *this_func_va_type);
/* Blocks
*
*/
struct ast_block_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_value* *locals;
ast_expression* *exprs;
*/
struct ast_function_s
{
- ast_node_common node;
+ ast_node node;
ast_value *vtype;
const char *name;
ast_value *varargs;
ast_value *argc;
ast_value *fixedparams;
+ ast_value *return_value;
};
ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype);
/* This will NOT delete the underlying ast_value */
bool ast_function_codegen(ast_function *self, ir_builder *builder);
bool ast_generate_accessors(ast_value *asvalue, ir_builder *ir);
-/* Expression union
- */
-union ast_expression_u
-{
- ast_expression_common expression;
-};
-
-/* Node union
- */
-union ast_node_u
-{
- ast_node_common node;
-};
-
#endif
projects / xonotic / gmqcc.git / blobdiff