submit/ast/If.java


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/*
 * Code formatter project
 * CS 4481
 */
package submit.ast;

/**
 *
 * @author edwajohn
 */
public class If extends AbstractNode implements Statement {

  private final Expression expression;
  private final Statement trueStatement;
  private final Statement falseStatement;

  public If(Expression expression, Statement trueStatement, Statement falseStatement) {
    this.expression = expression;
    this.trueStatement = trueStatement;
    this.falseStatement = falseStatement;
  }

  @Override
  public void toCminus(StringBuilder builder, String prefix) {
    builder.append(prefix).append("if (");
    expression.toCminus(builder, prefix);
    builder.append(")\n");
    if (trueStatement instanceof CompoundStatement) {
      trueStatement.toCminus(builder, prefix);
    } else {
      trueStatement.toCminus(builder, prefix + " ");
    }
    if (falseStatement != null) {
      builder.append(prefix).append("else\n");
      // falseStatement.toCminus(builder, prefix);
      if (falseStatement instanceof CompoundStatement) {
        falseStatement.toCminus(builder, prefix);
      } else {
        falseStatement.toCminus(builder, prefix + " ");
      }
    }
    // builder.append(prefix).append("}");
  }
}