stage1 初步实现

stage1/spl_builtin.c

@@ -0,0 +1,28 @@
+/* spl_builtin.c — 内置函数集中注册表实现 */
+
+#include "spl_builtin.h"
+#include "../stage0/include/utils.h"
+#include <string.h>
+
+static const spl_builtin_t k_builtins[] = {
+    {"sizeof", SPL_BUILTIN_SIZE_OF, 1, 1, 0},
+    {"bitsizeof", SPL_BUILTIN_BITSIZE_OF, 1, 1, 0},
+    {"alignof", SPL_BUILTIN_ALIGN_OF, 1, 1, 0},
+    {"offsetof", SPL_BUILTIN_OFFSET_OF, 2, 2, 0},
+    {"field_count", SPL_BUILTIN_FIELD_COUNT, 1, 1, 0},
+    {"dbg", SPL_BUILTIN_DBG, 0, -1, 1},
+    {"assert", SPL_BUILTIN_ASSERT, 1, 1, 1},
+    {"import", SPL_BUILTIN_IMPORT, 1, 1, 1},
+};
+
+const spl_builtin_t *spl_builtin_lookup(const char *name) {
+    if (!name)
+        return NULL;
+    for (usize i = 0; i < sizeof(k_builtins) / sizeof(k_builtins[0]); i++) {
+        if (strcmp(k_builtins[i].name, name) == 0)
+            return &k_builtins[i];
+    }
+    return NULL;
+}
+
+int spl_builtin_count(void) { return (int)(sizeof(k_builtins) / sizeof(k_builtins[0])); }