add new opcode REMOVE

close #25
neo-project · Jan 17, 2018 · 2ab361a · 2ab361a
1 parent cb1c4c9
commit 2ab361a
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Showing 3 changed files with 20 additions and 2 deletions.
diff --git a/src/neo-vm/ExecutionEngine.cs b/src/neo-vm/ExecutionEngine.cs
@@ -784,7 +784,6 @@ private void ExecuteOp(OpCode opcode, ExecutionContext context)
                             items.Add(newItem);
                         }
                         break;
-
                     case OpCode.REVERSE:
                         {
                             StackItem arrItem = EvaluationStack.Pop();
@@ -796,6 +795,24 @@ private void ExecuteOp(OpCode opcode, ExecutionContext context)
                             ((Types.Array)arrItem).Reverse();
                         }
                         break;
+                    case OpCode.REMOVE:
+                        {
+                            int index = (int)EvaluationStack.Pop().GetBigInteger();
+                            StackItem arrItem = EvaluationStack.Pop();
+                            if (!arrItem.IsArray)
+                            {
+                                State |= VMState.FAULT;
+                                return;
+                            }
+                            IList<StackItem> items = arrItem.GetArray();
+                            if (index < 0 || index >= items.Count)
+                            {
+                                State |= VMState.FAULT;
+                                return;
+                            }
+                            items.RemoveAt(index);
+                        }
+                        break;
 
                     // Exceptions
                     case OpCode.THROW:

diff --git a/src/neo-vm/OpCode.cs b/src/neo-vm/OpCode.cs
@@ -129,6 +129,7 @@ public enum OpCode : byte
         NEWSTRUCT = 0xC6, //用作值類型
         APPEND = 0xC8,
         REVERSE = 0xC9,
+        REMOVE = 0xCA,
 
         // Exceptions
         THROW = 0xF0,

diff --git a/src/neo-vm/neo-vm.csproj b/src/neo-vm/neo-vm.csproj
@@ -4,7 +4,7 @@
     <Copyright>2016-2017 The Neo Project</Copyright>
     <AssemblyTitle>Neo.VM</AssemblyTitle>
     <Description>Neo.VM</Description>
-    <Version>2.0.4</Version>
+    <Version>2.0.5</Version>
     <Authors>The Neo Project</Authors>
     <TargetFrameworks>netstandard1.6;net461</TargetFrameworks>
     <AssemblyName>Neo.VM</AssemblyName>