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/*******************************************************************************
* Copyright (c) 2004, 2012 IBM Corporation and others.
* 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:
* Devin Steffler (IBM Corporation) - initial API and implementation
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;
import org.eclipse.cdt.core.dom.ast.ASTTypeUtil;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IArrayType;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.ITypedef;
import org.eclipse.cdt.core.dom.ast.IValue;
import org.eclipse.cdt.core.dom.ast.c.ICASTArrayModifier;
import org.eclipse.cdt.core.dom.ast.c.ICArrayType;
import org.eclipse.cdt.core.parser.util.CharArrayUtils;
import org.eclipse.cdt.internal.core.dom.parser.ISerializableType;
import org.eclipse.cdt.internal.core.dom.parser.ITypeContainer;
import org.eclipse.cdt.internal.core.dom.parser.ITypeMarshalBuffer;
import org.eclipse.cdt.internal.core.dom.parser.Value;
import org.eclipse.core.runtime.CoreException;
public class CArrayType implements ICArrayType, ITypeContainer, ISerializableType {
IType type;
private IASTExpression sizeExpression;
private IValue value= Value.NOT_INITIALIZED;
private boolean isConst;
private boolean isVolatile;
private boolean isRestrict;
private boolean isStatic;
private boolean isVariableSized;
public CArrayType(IType type) {
this.type = type;
}
public CArrayType(IType type, boolean isConst, boolean isVolatile, boolean isRestrict, IValue size) {
this.type= type;
this.isConst= isConst;
this.isVolatile= isVolatile;
this.isRestrict= isRestrict;
this.value= size;
}
public void setIsStatic(boolean val) {
isStatic= val;
}
public void setIsVariableLength(boolean val) {
isVariableSized= val;
}
@Override
public boolean isSameType(IType obj) {
if (obj == this)
return true;
if (obj instanceof ITypedef)
return obj.isSameType(this);
if (obj instanceof ICArrayType) {
ICArrayType at = (ICArrayType) obj;
if (isConst() != at.isConst()) return false;
if (isRestrict() != at.isRestrict()) return false;
if (isStatic() != at.isStatic()) return false;
if (isVolatile() != at.isVolatile()) return false;
if (isVariableLength() != at.isVariableLength()) return false;
return at.getType().isSameType(type) && hasSameSize(at);
}
return false;
}
private boolean hasSameSize(IArrayType rhs) {
IValue s1 = getSize();
IValue s2 = rhs.getSize();
if (s1 == s2)
return true;
if (s1 == null || s2 == null)
return false;
return CharArrayUtils.equals(s1.getSignature(), s2.getSignature());
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IArrayType#getType()
*/
@Override
public IType getType() {
return type;
}
@Override
public void setType(IType t) {
this.type = t;
}
public void setModifier(ICASTArrayModifier mod) {
isConst= mod.isConst();
isVolatile= mod.isVolatile();
isRestrict= mod.isRestrict();
isStatic= mod.isStatic();
isVariableSized= mod.isVariableSized();
sizeExpression= mod.getConstantExpression();
}
@Override
public boolean isConst() {
return isConst;
}
@Override
public boolean isRestrict() {
return isRestrict;
}
@Override
public boolean isVolatile() {
return isVolatile;
}
@Override
public boolean isStatic() {
return isStatic;
}
@Override
public boolean isVariableLength() {
return isVariableSized;
}
@Override
public IValue getSize() {
if (value != Value.NOT_INITIALIZED)
return value;
if (sizeExpression == null)
return value= null;
return value= Value.create(sizeExpression, Value.MAX_RECURSION_DEPTH);
}
@Override
public Object clone() {
IType t = null;
try {
t = (IType) super.clone();
} catch (CloneNotSupportedException e) {
// Not going to happen
}
return t;
}
@Override
public String toString() {
return ASTTypeUtil.getType(this);
}
@Override
public void marshal(ITypeMarshalBuffer buffer) throws CoreException {
short firstBytes = ITypeMarshalBuffer.ARRAY_TYPE;
long nval= -1;
IValue val= null;
if (isConst()) firstBytes |= ITypeMarshalBuffer.FLAG1;
if (isVolatile()) firstBytes |= ITypeMarshalBuffer.FLAG2;
if (isRestrict()) firstBytes |= ITypeMarshalBuffer.FLAG3;
if (isStatic()) firstBytes |= ITypeMarshalBuffer.FLAG4;
if (isVariableLength()) firstBytes |= ITypeMarshalBuffer.FLAG5;
val= getSize();
if (val != null) {
firstBytes |= ITypeMarshalBuffer.FLAG6;
Long num= val.numericalValue();
if (num != null) {
nval= num;
if (nval >= 0) {
firstBytes |= ITypeMarshalBuffer.FLAG7;
}
}
}
buffer.putShort(firstBytes);
if (nval >= 0) {
buffer.putLong(nval);
} else if (val != null) {
buffer.marshalValue(val);
}
buffer.marshalType(getType());
}
public static IType unmarshal(short firstBytes, ITypeMarshalBuffer buffer) throws CoreException {
IValue value= null;
if ((firstBytes & ITypeMarshalBuffer.FLAG7) != 0) {
value = Value.create(buffer.getLong());
} else if ((firstBytes & ITypeMarshalBuffer.FLAG6) != 0) {
value = buffer.unmarshalValue();
}
IType nested= buffer.unmarshalType();
CArrayType result= new CArrayType(nested,
(firstBytes & ITypeMarshalBuffer.FLAG1) != 0,
(firstBytes & ITypeMarshalBuffer.FLAG2) != 0,
(firstBytes & ITypeMarshalBuffer.FLAG3) != 0, value);
result.setIsStatic((firstBytes & ITypeMarshalBuffer.FLAG4) != 0);
result.setIsVariableLength((firstBytes & ITypeMarshalBuffer.FLAG5) != 0);
return result;
}
@Override
@Deprecated
public IASTExpression getArraySizeExpression() {
if (sizeExpression != null)
return sizeExpression;
return null;
}
}
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