From eb001bab8f7a342afde93bd8c2c300a9e837db79 Mon Sep 17 00:00:00 2001
From: Teddy <ted.sybil@gmail.com>
Date: Wed, 26 Mar 2014 19:33:34 +0800
Subject: ...

---
 semantics.c | 20 ++++++++++----------
 test.c      |  9 +++++++++
 2 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/semantics.c b/semantics.c
index f491b2c..0913e65 100644
--- a/semantics.c
+++ b/semantics.c
@@ -94,21 +94,21 @@ void cscope_enter(CScope_t cs) {
 }
 
 void cscope_exit(CScope_t cs) {
-    CSNode *lower = cs->top->next;
+    CSNode *top_o = cs->top;
     CVar *vp;
     CType *tp;
-    for (vp = cs->top->vhead; vp; vp = vp->next)
+    cs->lvl--;
+    cs->top = top_o->next;
+    for (vp = top_o->vhead; vp; vp = vp->next)
         ctable_clip(cs->tvar, bkdr_hash(vp->name), cs->lvl);
-    for (tp = cs->top->thead; tp; tp = tp->next)
+    for (tp = top_o->thead; tp; tp = tp->next)
         ctable_clip(cs->ttype, bkdr_hash(tp->name), cs->lvl);
-    free(cs->top);
-    cs->top = lower;
-    cs->lvl--;
+    free(top_o);
 }
 
 void ctable_debug_print(CTable_t ct) {
     int i;
-    fprintf(stderr, "*** CTable ***\n");
+    fprintf(stderr, "\n*** CTable ***\n");
     for (i = 0; i < MAX_TABLE_SIZE; i++)
         if (ct->head[i])
         {
@@ -118,13 +118,13 @@ void ctable_debug_print(CTable_t ct) {
                 fprintf(stderr, "->[%s:%d]", ct->pfunc(p), p->lvl);
             fprintf(stderr, "\n");
         }
-    fprintf(stderr, "*** CTable ***\n");
+    fprintf(stderr, "*** CTable ***\n\n");
 }
 
 void cscope_debug_print(CScope_t cs) {
     int lvl = cs->lvl;
     CSNode *p;
-    fprintf(stderr, "*** CScope ***\n");
+    fprintf(stderr, "****** CScope ******\n");
     for (p = cs->top; p; p = p->next)
     {
         CVar *vp;
@@ -142,7 +142,7 @@ void cscope_debug_print(CScope_t cs) {
     ctable_debug_print(cs->tvar);
     fprintf(stderr, "Type Table:\n");
     ctable_debug_print(cs->ttype);
-    fprintf(stderr, "*** CScope ***\n");
+    fprintf(stderr, "****** CScope ******\n");
 }
 
 CVar *cscope_lookup_var(CScope_t cs, const char *name) {
diff --git a/test.c b/test.c
index 20b2968..21314b1 100644
--- a/test.c
+++ b/test.c
@@ -22,5 +22,14 @@ int main() {
     PV("a");
     PV("hello");
     cscope_debug_print(scope);
+    cscope_enter(scope);
+    PV("a");
+    PV("yay");
+    PV("world");
+    cscope_debug_print(scope);
+    cscope_exit(scope);
+    cscope_debug_print(scope);
+    cscope_exit(scope);
+    cscope_debug_print(scope);
     return 0;
 }
-- 
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