org.eclipse.jdt.internal.compiler.ast.Literal.java Source code

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/*******************************************************************************
 * Copyright (c) 2000, 2012 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.ast;

import org.eclipse.jdt.internal.compiler.flow.FlowContext;
import org.eclipse.jdt.internal.compiler.flow.FlowInfo;
import org.eclipse.jdt.internal.compiler.impl.*;
import org.eclipse.jdt.internal.compiler.lookup.*;

public abstract class Literal extends Expression {

    public Literal(int s, int e) {

        this.sourceStart = s;
        this.sourceEnd = e;
    }

    @Override
    public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {

        return flowInfo;
    }

    public abstract void computeConstant();

    public abstract TypeBinding literalType(BlockScope scope);

    @Override
    public StringBuffer printExpression(int indent, StringBuffer output) {

        return output.append(source());
    }

    @Override
    public TypeBinding resolveType(BlockScope scope) {
        // compute the real value, which must range its type's range
        this.resolvedType = literalType(scope);

        // in case of error, constant did remain null
        computeConstant();
        if (this.constant == null) {
            scope.problemReporter().constantOutOfRange(this, this.resolvedType);
            this.constant = Constant.NotAConstant;
        }
        return this.resolvedType;
    }

    public abstract char[] source();
}