WALA/com.ibm.wala.cast/source/java/com/ibm/wala/cast/ir/ssa/AstAssertInstruction.java

67 lines
1.8 KiB
Java

/******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*****************************************************************************/
package com.ibm.wala.cast.ir.ssa;
import java.util.Collection;
import com.ibm.wala.ssa.SSAInstruction;
import com.ibm.wala.ssa.SymbolTable;
import com.ibm.wala.ssa.ValueDecorator;
import com.ibm.wala.util.debug.Assertions;
public class AstAssertInstruction extends SSAInstruction {
private final int value;
private final boolean fromSpecification;
public AstAssertInstruction(int value, boolean fromSpecification) {
this.value = value;
this.fromSpecification = fromSpecification;
}
public int getNumberOfUses() {
return 1;
}
public int getUse(int i) {
Assertions._assert(i == 0);
return value;
}
public SSAInstruction copyForSSA(int[] defs, int[] uses) {
return new AstAssertInstruction(uses==null? value: uses[0], fromSpecification);
}
public String toString(SymbolTable symbolTable, ValueDecorator d) {
return "assert " + getValueString(symbolTable, d, value) +
" (fromSpec: " + fromSpecification + ")";
}
public void visit(IVisitor v) {
((AstInstructionVisitor)v).visitAssert(this);
}
public int hashCode() {
return 2177*value;
}
public Collection getExceptionTypes() {
return null;
}
public boolean isFallThrough() {
return true;
}
public boolean isFromSpecification() {
return fromSpecification;
}
}