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/*****************************************************************************
 * Copyright (C) jparsec.org                                                *
 * ------------------------------------------------------------------------- *
 * Licensed under the Apache License, Version 2.0 (the "License");           *
 * you may not use this file except in compliance with the License.          *
 * You may obtain a copy of the License at                                   *
 *                                                                           *
 * http://www.apache.org/licenses/LICENSE-2.0                                *
 *                                                                           *
 * Unless required by applicable law or agreed to in writing, software       *
 * distributed under the License is distributed on an "AS IS" BASIS,         *
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
 * See the License for the specific language governing permissions and       *
 * limitations under the License.                                            *
 *****************************************************************************/
package org.jparsec.examples.java.ast.statement;

import java.util.List;

import org.jparsec.examples.common.Strings;
import org.jparsec.examples.common.ValueObject;
import org.jparsec.examples.java.ast.expression.Expression;
import org.jparsec.examples.java.ast.type.TypeLiteral;

/**
 * Represents a single variable declaration.
 * 
 * @author Ben Yu
 */
public final class VarStatement extends ValueObject implements Statement {
  
  public static final class Var extends ValueObject {
    public final String name;
    public final Expression value;
    
    public Var(String name, Expression value) {
      this.name = name;
      this.value = value;
    }
    
    @Override public String toString() {
      return name + (value == null ? "" : " = " + value);
    }
  }
  public final List modifiers;
  public final TypeLiteral type;
  public final List vars;
  
  public VarStatement(
      List modifiers, TypeLiteral type, List vars) {
    this.modifiers = modifiers;
    this.type = type;
    this.vars = vars;
  }
  
  @Override public String toString() {
    StringBuilder builder = new StringBuilder();
    for (Modifier modifier : modifiers) {
      builder.append(modifier).append(' ');
    }
    builder.append(type).append(" ");
    Strings.join(builder, ", ", vars);
    builder.append(";");
    return builder.toString();
  }
}