simple sanity check in code_dump

[swftools.git] / lib / as3 / code.c

diff --git a/lib/as3/code.c b/lib/as3/code.c
index b125c95..acccb6a 100644 (file)
--- a/lib/as3/code.c
+++ b/lib/as3/code.c
@@ -207,20 +207,18 @@ opcode_t opcodes[]={
 {0xff, "__break__", "s",            0, 0, 0, OP_RETURN|OP_INTERNAL},
 };
 
-static U8 op2index[256] = {254};
+static opcode_t* op2op[256] = {0,0,0};
 
-opcode_t* opcode_get(U8 op)
+static inline opcode_t* opcode_get(U8 op)
 {
     int t;
-    if(op2index[0]==254) {
-        memset(op2index, 255, sizeof(op2index));
+    if(!op2op[0x02]) {
+        memset(op2op, 0, sizeof(op2op));
         for(t=0;t<sizeof(opcodes)/sizeof(opcodes[0]);t++) {
-            op2index[opcodes[t].opcode] = t;
+            op2op[opcodes[t].opcode] = &opcodes[t];
         }
     }
-    if(op2index[op]!=255)
-        return &opcodes[op2index[op]];
-    return 0;
+    return op2op[op];
 }
 
 static code_t*pos2code(code_t**bytepos, code_t*c, int pos, int len)
@@ -849,6 +847,12 @@ void stats_free(currentstats_t*stats)
 
 int code_dump(code_t*c)
 {
+    code_t*cc = code_start(c);
+    while(cc) {
+        assert(!cc->next || cc->next->prev == cc);
+        cc = cc->next;
+    }
+
     return code_dump2(c, 0, 0, "", stdout);
 }
 int code_dump2(code_t*c, abc_exception_list_t*exceptions, abc_file_t*file, char*prefix, FILE*fo)
@@ -1132,7 +1136,7 @@ code_t*code_cut(code_t*c)
     if(prev) prev->next=next;
     if(next) next->prev=prev;
     code_free(c);
-    
+
     if(next) return code_end(next);
     else     return prev;
 }