2 * Copyright 2000-2009 JetBrains s.r.o.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package com
.intellij
.codeInspection
.dataFlow
.instructions
;
18 import com
.intellij
.codeInspection
.dataFlow
.DataFlowRunner
;
19 import com
.intellij
.codeInspection
.dataFlow
.DfaInstructionState
;
20 import com
.intellij
.codeInspection
.dataFlow
.DfaMemoryState
;
21 import com
.intellij
.codeInspection
.dataFlow
.InstructionVisitor
;
26 public class GosubInstruction
extends Instruction
{
27 private final int mySubprogramOffset
;
29 public GosubInstruction(int subprogramOffset
) {
30 mySubprogramOffset
= subprogramOffset
;
34 public DfaInstructionState
[] accept(DataFlowRunner runner
, DfaMemoryState stateBefore
, InstructionVisitor visitor
) {
35 final int returnIndex
= getIndex() + 1;
36 stateBefore
.pushOffset(returnIndex
);
37 Instruction nextInstruction
= runner
.getInstruction(mySubprogramOffset
);
38 return new DfaInstructionState
[] {new DfaInstructionState(nextInstruction
, stateBefore
)};
41 public String
toString() {
42 return "GOSUB: " + mySubprogramOffset
;