Method write0

examples/src/main/java/File.java:338–354

Perform the common functionality for write and writeLine methods. Since the two functions differ only in whether they write a newline character, this method contains the shared implementation. It handles the creation of the writer if necessary and writes all arguments as strings to the file. @p

(Scriptable thisObj, Object[] args, boolean eol)

     * @throws IOException if an error occurs while writing to the file
     */
    private static void write0(Scriptable thisObj, Object[] args, boolean eol) throws IOException {
        File thisFile = checkInstance(thisObj);
        if (thisFile.reader != null) {
            throw Context.reportRuntimeError("already reading file \"" + thisFile.name + "\"");
        }
        if (thisFile.writer == null)
            thisFile.writer =
                    new BufferedWriter(
                            thisFile.file == null
                                    ? new OutputStreamWriter(System.out)
                                    : new FileWriter(thisFile.file));
        for (int i = 0; i < args.length; i++) {
            String s = Context.toString(args[i]);
            thisFile.writer.write(s, 0, s.length());
        }
        if (eol) thisFile.writer.newLine();
    }

    /**
     * Perform instanceof check and return the downcasted File object.