Class: Oj::StringWriter

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

Overview

Supports building a JSON document one element at a time. Build the document by pushing values into the document. Pushing an array or an object will create that element in the JSON document and subsequent pushes will add the elements to that array or object until a pop() is called. When complete calling to_s() will return the JSON document. Note that calling to_s() before construction is complete will return the document in it's current state.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 290

static VALUE str_writer_new(int argc, VALUE *argv, VALUE self) {
    StrWriter sw = OJ_R_ALLOC(struct _strWriter);

    oj_str_writer_init(sw, 0);
    if (1 == argc) {
        oj_parse_options(argv[0], &sw->opts);
    }
    oj_options_take_ownership(&sw->opts);
    sw->out.argc   = argc - 1;
    sw->out.argv   = argv + 1;
    sw->out.indent = sw->opts.indent;

    return TypedData_Wrap_Struct(oj_string_writer_class, &oj_string_writer_type, sw);
}

Instance Method Details

#as_json(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 501

static VALUE str_writer_as_json(int argc, VALUE *argv, VALUE self) {
    if (string_writer_optimized) {
        return self;
    }
    return rb_hash_new();
}

#pop ⇒ Object 



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# File 'ext/oj/string_writer.c', line 437

static VALUE str_writer_pop(VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    oj_str_writer_pop(sw);
    return Qnil;
}

#pop_all ⇒ Object 



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# File 'ext/oj/string_writer.c', line 451

static VALUE str_writer_pop_all(VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    oj_str_writer_pop_all(sw);

    return Qnil;
}

#push_array(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 358

static VALUE str_writer_push_array(int argc, VALUE *argv, VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    switch (argc) {
    case 0: oj_str_writer_push_array(sw, 0); break;
    case 1:
        if (Qnil == argv[0]) {
            oj_str_writer_push_array(sw, 0);
        } else {
            oj_str_writer_push_array(sw, StringValuePtr(argv[0]));
        }
        break;
    default: rb_raise(rb_eArgError, "Wrong number of argument to 'push_object'."); break;
    }
    if (rb_block_given_p()) {
        rb_yield(Qnil);
        oj_str_writer_pop(sw);
    }
    return Qnil;
}

#push_json(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 414

static VALUE str_writer_push_json(int argc, VALUE *argv, VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

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

#push_key(key) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 313

static VALUE str_writer_push_key(VALUE self, VALUE key) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    oj_str_writer_push_key(sw, StringValuePtr(key));

    return Qnil;
}

#push_object(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 329

static VALUE str_writer_push_object(int argc, VALUE *argv, VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    switch (argc) {
    case 0: oj_str_writer_push_object(sw, 0); break;
    case 1:
        if (Qnil == argv[0]) {
            oj_str_writer_push_object(sw, 0);
        } else {
            oj_str_writer_push_object(sw, StringValuePtr(argv[0]));
        }
        break;
    default: rb_raise(rb_eArgError, "Wrong number of argument to 'push_object'."); break;
    }
    if (rb_block_given_p()) {
        rb_yield(Qnil);
        oj_str_writer_pop(sw);
    }
    return Qnil;
}

#push_value(*args) ⇒ Object 



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# File 'ext/oj/string_writer.c', line 387

static VALUE str_writer_push_value(int argc, VALUE *argv, VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

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

#raw_json ⇒ Object 



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# File 'ext/oj/string_writer.c', line 485

static VALUE str_writer_to_s(VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);
    return rb_utf8_str_new(sw->out.buf, sw->out.cur - sw->out.buf);
}

#reset ⇒ Object 



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# File 'ext/oj/string_writer.c', line 465

static VALUE str_writer_reset(VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);

    sw->depth      = 0;
    *sw->types     = '\0';
    sw->keyWritten = 0;
    sw->out.cur    = sw->out.buf;
    *sw->out.cur   = '\0';

    return Qnil;
}

#to_s ⇒ Object 



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# File 'ext/oj/string_writer.c', line 485

static VALUE str_writer_to_s(VALUE self) {
    StrWriter sw;
    TypedData_Get_Struct(self, struct _strWriter, &oj_string_writer_type, sw);
    return rb_utf8_str_new(sw->out.buf, sw->out.cur - sw->out.buf);
}