Class: Oj::StreamWriter

Inherits:
Object
  • Object
show all
Defined in:
ext/oj/oj.c

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(options) ⇒ Object

Creates a new StreamWriter.

Parameters:

  • options (Hash) —

    formating options


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# File 'ext/oj/oj.c', line 1264

static VALUE
stream_writer_new(int argc, VALUE *argv, VALUE self) {
    StreamWriterType	type = STREAM_IO;
    int			fd = 0;
    VALUE		stream = argv[0];
    VALUE		clas = rb_obj_class(stream);
    StreamWriter	sw;
#if !IS_WINDOWS
    VALUE		s;
#endif
    
    if (oj_stringio_class == clas) {
	type = STRING_IO;
#if !IS_WINDOWS
    } else if (rb_respond_to(stream, oj_fileno_id) &&
	       Qnil != (s = rb_funcall(stream, oj_fileno_id, 0)) &&
	       0 != (fd = FIX2INT(s))) {
	type = FILE_IO;
#endif
    } else if (rb_respond_to(stream, oj_write_id)) {
	type = STREAM_IO;
    } else {
	rb_raise(rb_eArgError, "expected an IO Object.");
    }
    sw = ALLOC(struct _StreamWriter);
    str_writer_init(&sw->sw);
    if (2 == argc) {
	oj_parse_options(argv[1], &sw->sw.opts);
    }
    sw->sw.out.indent = sw->sw.opts.indent;
    sw->stream = stream;
    sw->type = type;
    sw->fd = fd;

    return Data_Wrap_Struct(oj_stream_writer_class, 0, stream_writer_free, sw);
}

Instance Method Details

#pop ⇒ Object

Pops up a level in the JSON document closing the array or object that is currently open.


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# File 'ext/oj/oj.c', line 1451

static VALUE
stream_writer_pop(VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    stream_writer_reset_buf(sw);
    oj_str_writer_pop(&sw->sw);
    stream_writer_write(sw);
    return Qnil;
}

#pop_all ⇒ Object

Pops all level in the JSON document closing all the array or object that is currently open.


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# File 'ext/oj/oj.c', line 1466

static VALUE
stream_writer_pop_all(VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    stream_writer_reset_buf(sw);
    oj_str_writer_pop_all(&sw->sw);
    stream_writer_write(sw);

    return Qnil;
}

#push_array(key = nil) ⇒ Object

Pushes an array onto the JSON document. Future pushes will be to this object until a pop() is called.

Parameters:

  • key (String) —

    the key if adding to an object in the JSON document


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# File 'ext/oj/oj.c', line 1356

static VALUE
stream_writer_push_array(int argc, VALUE *argv, VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    stream_writer_reset_buf(sw);
    switch (argc) {
    case 0:
	oj_str_writer_push_array(&sw->sw, 0);
	break;
    case 1:
	if (Qnil == argv[0]) {
	    oj_str_writer_push_array(&sw->sw, 0);
	} else {
	    rb_check_type(argv[0], T_STRING);
	    oj_str_writer_push_array(&sw->sw, StringValuePtr(argv[0]));
	}
	break;
    default:
	rb_raise(rb_eArgError, "Wrong number of argument to 'push_object'.");
	break;
    }
    stream_writer_write(sw);
    return Qnil;
}

#push_value(value, key = nil) ⇒ Object

Pushes a string onto the JSON document. The String must be a valid JSON encoded string. No additional checking is done to verify the validity of the string.

Parameters:

  • value (Object) —

    value to add to the JSON document

  • key (String) —

    the key if adding to an object in the JSON document


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# File 'ext/oj/oj.c', line 1420

static VALUE
stream_writer_push_json(int argc, VALUE *argv, VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    rb_check_type(argv[0], T_STRING);
    stream_writer_reset_buf(sw);
    switch (argc) {
    case 1:
	oj_str_writer_push_json((StrWriter)DATA_PTR(self), StringValuePtr(*argv), 0);
	break;
    case 2:
	if (Qnil == argv[0]) {
	    oj_str_writer_push_json((StrWriter)DATA_PTR(self), StringValuePtr(*argv), 0);
	} else {
	    rb_check_type(argv[1], T_STRING);
	    oj_str_writer_push_json((StrWriter)DATA_PTR(self), StringValuePtr(*argv), StringValuePtr(argv[1]));
	}
	break;
    default:
	rb_raise(rb_eArgError, "Wrong number of argument to 'push_json'.");
	break;
    }
    stream_writer_write(sw);
    return Qnil;
}

#push_key(key) ⇒ Object

Pushes a key onto the JSON document. The key will be used for the next push if currently in a JSON object and ignored otherwise. If a key is provided on the next push then that new key will be ignored.

Parameters:

  • key (String) —

    the key pending for the next push


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# File 'ext/oj/oj.c', line 1308

static VALUE
stream_writer_push_key(VALUE self, VALUE key) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    rb_check_type(key, T_STRING);
    stream_writer_reset_buf(sw);
    oj_str_writer_push_key(&sw->sw, StringValuePtr(key));
    stream_writer_write(sw);
    return Qnil;
}

#push_object(key = nil) ⇒ Object

Pushes an object onto the JSON document. Future pushes will be to this object until a pop() is called.

Parameters:

  • key (String) —

    the key if adding to an object in the JSON document


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# File 'ext/oj/oj.c', line 1325

static VALUE
stream_writer_push_object(int argc, VALUE *argv, VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    stream_writer_reset_buf(sw);
    switch (argc) {
    case 0:
	oj_str_writer_push_object(&sw->sw, 0);
	break;
    case 1:
	if (Qnil == argv[0]) {
	    oj_str_writer_push_object(&sw->sw, 0);
	} else {
	    rb_check_type(argv[0], T_STRING);
	    oj_str_writer_push_object(&sw->sw, StringValuePtr(argv[0]));
	}
	break;
    default:
	rb_raise(rb_eArgError, "Wrong number of argument to 'push_object'.");
	break;
    }
    stream_writer_write(sw);
    return Qnil;
}

#push_value(value, key = nil) ⇒ Object

Pushes a value onto the JSON document.

Parameters:

  • value (Object) —

    value to add to the JSON document

  • key (String) —

    the key if adding to an object in the JSON document


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# File 'ext/oj/oj.c', line 1387

static VALUE
stream_writer_push_value(int argc, VALUE *argv, VALUE self) {
    StreamWriter	sw = (StreamWriter)DATA_PTR(self);

    stream_writer_reset_buf(sw);
    switch (argc) {
    case 1:
	oj_str_writer_push_value((StrWriter)DATA_PTR(self), *argv, 0);
	break;
    case 2:
	if (Qnil == argv[0]) {
	    oj_str_writer_push_value((StrWriter)DATA_PTR(self), *argv, 0);
	} else {
	    rb_check_type(argv[1], T_STRING);
	    oj_str_writer_push_value((StrWriter)DATA_PTR(self), *argv, StringValuePtr(argv[1]));
	}
	break;
    default:
	rb_raise(rb_eArgError, "Wrong number of argument to 'push_value'.");
	break;
    }
    stream_writer_write(sw);
    return Qnil;
}