au.com.integradev.delphi.antlr.ast.node.ExpressionNodeImpl Maven / Gradle / Ivy
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/*
* Sonar Delphi Plugin
* Copyright (C) 2019 Integrated Application Development
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package au.com.integradev.delphi.antlr.ast.node;
import javax.annotation.Nonnull;
import org.antlr.runtime.Token;
import org.sonar.plugins.communitydelphi.api.ast.ExpressionNode;
import org.sonar.plugins.communitydelphi.api.ast.ParenthesizedExpressionNode;
import org.sonar.plugins.communitydelphi.api.type.Type;
public abstract class ExpressionNodeImpl extends DelphiNodeImpl implements ExpressionNode {
private Type type;
protected ExpressionNodeImpl(Token token) {
super(token);
}
protected ExpressionNodeImpl(int tokenType) {
super(tokenType);
}
@Override
@Nonnull
public Type getType() {
if (type == null) {
type = createType();
}
return type;
}
@Override
@Nonnull
public ExpressionNode skipParentheses() {
ExpressionNode result = this;
while (result instanceof ParenthesizedExpressionNode) {
result = ((ParenthesizedExpressionNode) result).getExpression();
}
return result;
}
@Override
@Nonnull
public ExpressionNode findParentheses() {
ExpressionNode result = this;
while (result.getParent() instanceof ParenthesizedExpressionNode) {
result = (ExpressionNode) result.getParent();
}
return result;
}
protected abstract Type createType();
}
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