IPStack - Firewall cleanups and speedups (now shoudl at least work)
[tpg/acess2.git] / Usermode / Libraries / libspiderscript.so_src / exec_ast.c
index 480ecc1..5355838 100644 (file)
@@ -749,10 +749,13 @@ tSpiderValue *AST_ExecuteNode(tAST_BlockState *Block, tAST_Node *Node)
                        blockInfo.RetVal = NULL;
                        blockInfo.BaseNamespace = Block->BaseNamespace;
                        blockInfo.CurNamespace = NULL;
+                       blockInfo.BreakTarget = NULL;
                        blockInfo.Ident = giNextBlockIdent ++;
                        ret = NULL;
                        // Loop over all nodes, or until the return value is set
-                       for(node = Node->Block.FirstChild; node && !blockInfo.RetVal; node = node->NextSibling )
+                       for(node = Node->Block.FirstChild;
+                               node && !blockInfo.RetVal && !blockInfo.BreakTarget;
+                               node = node->NextSibling )
                        {
                                ret = AST_ExecuteNode(&blockInfo, node);
                                if(ret == ERRPTR)       break;  // Error check
@@ -771,6 +774,12 @@ tSpiderValue *AST_ExecuteNode(tAST_BlockState *Block, tAST_Node *Node)
                        // Set parent's return value if needed
                        if( blockInfo.RetVal )
                                Block->RetVal = blockInfo.RetVal;
+                       if( blockInfo.BreakTarget ) {
+                               Block->BreakTarget = blockInfo.BreakTarget;
+                               Block->BreakType = blockInfo.BreakType;
+                       }
+                       
+                       // TODO: Unset break if break type deontes a block break
                }
                
                break;
@@ -922,38 +931,59 @@ tSpiderValue *AST_ExecuteNode(tAST_BlockState *Block, tAST_Node *Node)
        
        // Loop
        case NODETYPE_LOOP:
+               // Initialise
                ret = AST_ExecuteNode(Block, Node->For.Init);
                if(ret == ERRPTR)       break;
-               if( Node->For.bCheckAfter )
+               
+               // Check initial condition
+               if( !Node->For.bCheckAfter )
                {
-                       do {
-                               Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Code);
-                               if(ret == ERRPTR)       return ERRPTR;
-                               Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Increment);
-                               if(ret == ERRPTR)       return ERRPTR;
+                       Object_Dereference(ret);
+               
+                       ret = AST_ExecuteNode(Block, Node->For.Condition);
+                       if(ret == ERRPTR)       return ERRPTR;
+                       if(!SpiderScript_IsValueTrue(ret)) {
                                Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Condition);
-                               if(ret == ERRPTR)       return ERRPTR;
-                       } while( SpiderScript_IsValueTrue(ret) );
+                               ret = NULL;
+                               break;
+                       }
                }
-               else
+       
+               // Perform loop
+               for( ;; )
                {
                        Object_Dereference(ret);
-                       ret = AST_ExecuteNode(Block, Node->For.Condition);
+                       
+                       // Code
+                       ret = AST_ExecuteNode(Block, Node->For.Code);
                        if(ret == ERRPTR)       return ERRPTR;
-                       while( SpiderScript_IsValueTrue(ret) ) {
-                               Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Code);
-                               if(ret == ERRPTR)       return ERRPTR;
-                               Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Increment);
-                               if(ret == ERRPTR)       return ERRPTR;
-                               Object_Dereference(ret);
-                               ret = AST_ExecuteNode(Block, Node->For.Condition);
-                               if(ret == ERRPTR)       return ERRPTR;
+                       Object_Dereference(ret);
+                       
+                       if(Block->BreakTarget)
+                       {
+                               if( Block->BreakTarget[0] == '\0' || strcmp(Block->BreakTarget, Node->For.Tag) == 0 )
+                               {
+                                       // Ours
+                                       free((void*)Block->BreakTarget);        Block->BreakTarget = NULL;
+                                       if( Block->BreakType == NODETYPE_CONTINUE ) {
+                                               // Continue, just keep going
+                                       }
+                                       else
+                                               break;
+                               }
+                               else
+                                       break;  // Break out of this loop
                        }
+                       
+                       // Increment
+                       ret = AST_ExecuteNode(Block, Node->For.Increment);
+                       if(ret == ERRPTR)       return ERRPTR;
+                       Object_Dereference(ret);
+                       
+                       // Check condition
+                       ret = AST_ExecuteNode(Block, Node->For.Condition);
+                       if(ret == ERRPTR)       return ERRPTR;
+                       if(!SpiderScript_IsValueTrue(ret))      break;
                }
                Object_Dereference(ret);
                ret = NULL;
@@ -967,6 +997,12 @@ tSpiderValue *AST_ExecuteNode(tAST_BlockState *Block, tAST_Node *Node)
                ret = NULL;     // the `return` statement does not return a value
                break;
        
+       case NODETYPE_BREAK:
+       case NODETYPE_CONTINUE:
+               Block->BreakTarget = strdup(Node->Variable.Name);
+               Block->BreakType = Node->Type;
+               break;
+       
        // Define a variable
        case NODETYPE_DEFVAR:
                if( Node->DefVar.InitialValue ) {
@@ -1601,7 +1637,9 @@ tAST_Variable *Variable_Lookup(tAST_BlockState *Block, tAST_Node *VarNode, int C
  */
 int Variable_SetValue(tAST_BlockState *Block, tAST_Node *VarNode, tSpiderValue *Value)
 {
-       tAST_Variable   *var = Variable_Lookup(Block, VarNode, Value->Type);
+       tAST_Variable   *var;
+       
+       var = Variable_Lookup(Block, VarNode, (Value ? Value->Type : SS_DATATYPE_UNDEF));
        
        if( !var )      return -1;
        

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