public void dumpExpression(TabbedPrintWriter writer)
			throws java.io.IOException {
		writer.print("(");
		writer.printType(castType);
		writer.print(") ");
		writer.breakOp();

		/*
		 * There are special cases where a cast isn't allowed. We must cast to
		 * the common super type before. This cases always give a runtime error,
		 * but we want to decompile even bad programs.
		 */
		Type superType = castType.getCastHelper(subExpressions[0].getType());
		if (superType != null) {
			writer.print("(");
			writer.printType(superType);
			writer.print(") ");
			writer.breakOp();
		}
		subExpressions[0].dumpExpression(writer, 700);
	}