1 files changed, 32 insertions, 0 deletions
diff --git a/ast.h b/ast.h
new file mode 100644
index 0000000..f6db7da
--- /dev/null
+++ b/ast.h
@@ -0,0 +1,32 @@
+typedef struct {
+    enum {
+        /* Top Level */
+        PROG = 1024,  FUNC_DEF, PARAMS, 
+        DECL, /* declaration */
+        DECLR, /* declarator */
+        DECLRS, 
+        INIT_DECLRS, INIT_DECLR, 
+        INITR, /* initializer */
+        TYPE_SPEC,
+        STRUCT, UNION, 
+        PLAIN_DECL, PLAIN_DECLR,
+
+        /* Statments */
+        EXP_STMT, /* expression-statment */
+        COMP_STMT, IF_STMT, /* selection-statment */
+        WHILE_STMT, FOR_STMT,
+        CONT_STMT , BREAK_STMT, RET_STMT, /* 'continue', 'break', 'return' */
+
+        /* Expressions (expressions use their token ID to denote their types */
+        EXP 
+    } type;
+    union {
+        int intval;
+        char *strvar;
+    } rec;
+    struct CNode *chd, *next;
+    /* For error reporting */
+    struct Location {
+        int row, col;
+    } loc;
+} CNode;