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/*******************************************************************************
* Copyright (c) 2004, 2014 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Andrew Niefer (IBM Corporation) - initial API and implementation
* Markus Schorn (Wind River Systems)
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
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.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.IntegralValue;
import org.eclipse.cdt.internal.core.dom.parser.ValueFactory;
import org.eclipse.core.runtime.CoreException;
public class CPPArrayType implements IArrayType, ITypeContainer, ISerializableType {
private IType type;
private IASTExpression sizeExpression;
private IValue value= IntegralValue.NOT_INITIALIZED;
public CPPArrayType(IType type, IValue value) {
this.value= value;
setType(type);
}
public CPPArrayType(IType type, IASTExpression sizeExp) {
this.sizeExpression = sizeExp;
setType(type);
}
@Override
public IType getType() {
return type;
}
@Override
public final void setType(IType t) {
assert t != null;
this.type = t;
}
@Override
public boolean isSameType(IType obj) {
if (obj == this)
return true;
if (obj instanceof ITypedef)
return ((ITypedef) obj).isSameType(this);
if (obj instanceof IArrayType) {
final IArrayType rhs = (IArrayType) obj;
IType objType = rhs.getType();
if (objType != null) {
if (objType.isSameType(type)) {
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());
}
}
}
return false;
}
@Override
public IValue getSize() {
if (value != IntegralValue.NOT_INITIALIZED)
return value;
if (sizeExpression == null)
return value= null;
return value= ValueFactory.create(sizeExpression);
}
@Override
public boolean hasSize() {
return value == IntegralValue.NOT_INITIALIZED ? sizeExpression != null : value != null;
}
@Override
@Deprecated
public IASTExpression getArraySizeExpression() {
return sizeExpression;
}
@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 {
final short firstBytes = ITypeMarshalBuffer.ARRAY_TYPE;
IValue val= getSize();
if (val == null) {
buffer.putShort(firstBytes);
buffer.marshalType(getType());
return;
}
Number num= val.numberValue();
if (num != null) {
long lnum= num.longValue();
if (lnum >= 0) {
buffer.putShort((short) (firstBytes | ITypeMarshalBuffer.FLAG1));
buffer.putLong(lnum);
buffer.marshalType(getType());
return;
}
}
buffer.putShort((short) (firstBytes | ITypeMarshalBuffer.FLAG2));
buffer.marshalValue(val);
buffer.marshalType(getType());
}
public static IType unmarshal(short firstBytes, ITypeMarshalBuffer buffer) throws CoreException {
IValue value= null;
if ((firstBytes & ITypeMarshalBuffer.FLAG1) != 0) {
value = IntegralValue.create(buffer.getLong());
} else if ((firstBytes & ITypeMarshalBuffer.FLAG2) != 0) {
value = buffer.unmarshalValue();
}
IType nested= buffer.unmarshalType();
return new CPPArrayType(nested, value);
}
}
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