stage1 支持指针运算 提供新的类型检查计算

stage1/spl_ast.h

@@ -2,12 +2,12 @@
 #define __SPL_AST_H__
 
 #include "../stage0/include/utils.h"
+#include "spl_attr.h"
 #include "spl_dbg.h"
 #include "spl_lexer.h"
+#include "spl_mpa.h"
 #include "spl_tok.h"
 
-#include "spl_attr.h"
-
 /* clang-format off */
 #define SPL_AST_KIND_TABLE                                            \
     X(SPL_AST_NONE,                 V0, none)                         \
@@ -139,6 +139,7 @@ typedef enum {
     SPL_UNARY_OP_NOT,
     SPL_UNARY_OP_BIT_NOT,
     SPL_UNARY_OP_ADDRESS,
+    SPL_UNARY_OP_DEREF,
 } spl_unary_op_t;
 
 const char *spl_binary_op_name(spl_binary_op_t op);
@@ -291,12 +292,8 @@ struct spl_ast_node {
         } label;
 
         /* ---- 表达式子类型 ---- */
-        struct {
-            isize val;
-        } int_lit;
-        struct {
-            double val;
-        } float_lit;
+        spl_mpa_int_t int_lit;
+        spl_mpa_float_t float_lit;
         struct {
             char val;
         } char_lit;