Class: JSON::Ext::Generator::State

Inherits:
Object
  • Object
show all
Defined in:
lib/json/ext/generator/state.rb,
ext/json/ext/generator/generator.c

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.from_state(opts) ⇒ Object

Creates a State object from opts, which ought to be Hash to create a new State instance configured by opts, something else to create an unconfigured instance. If opts is a State object, it is just returned.



1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
 
# File 'ext/json/ext/generator/generator.c', line 1120

static VALUE cState_from_state_s(VALUE self, VALUE opts)
{
    if (rb_obj_is_kind_of(opts, self)) {
        return opts;
    } else if (rb_obj_is_kind_of(opts, rb_cHash)) {
        return rb_funcall(self, i_new, 1, opts);
    } else {
        return rb_class_new_instance(0, NULL, cState);
    }
}

.generate(obj, opts) ⇒ Object 



1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
 
# File 'ext/json/ext/generator/generator.c', line 1505

static VALUE cState_m_generate(VALUE klass, VALUE obj, VALUE opts)
{
    JSON_Generator_State state = {0};
    state_init(&state);
    configure_state(&state, opts);

    char stack_buffer[FBUFFER_STACK_SIZE];
    FBuffer buffer = {0};
    fbuffer_stack_init(&buffer, state.buffer_initial_length, stack_buffer, FBUFFER_STACK_SIZE);

    struct generate_json_data data = {
        .buffer = &buffer,
        .vstate = Qfalse,
        .state = &state,
        .obj = obj,
        .func = generate_json,
    };
    rb_rescue(generate_json_try, (VALUE)&data, generate_json_rescue, (VALUE)&data);

    return fbuffer_to_s(&buffer);
}

Instance Method Details

#[](name) ⇒ Object

call-seq: [](name)

Returns the value returned by method name.



83
84
85
86
87
88
89
90
 
# File 'lib/json/ext/generator/state.rb', line 83

def [](name)
  if respond_to?(name)
    __send__(name)
  else
    instance_variable_get("@#{name}") if
      instance_variables.include?("@#{name}".to_sym) # avoid warning
  end
end

#[]=(name, value) ⇒ Object

call-seq: []=(name, value)

Sets the attribute name to value.



95
96
97
98
99
100
101
 
# File 'lib/json/ext/generator/state.rb', line 95

def []=(name, value)
  if respond_to?(name_writer = "#{name}=")
    __send__ name_writer, value
  else
    instance_variable_set "@#{name}", value
  end
end

#allow_nan=(enable) ⇒ Object

This sets whether or not to serialize NaN, Infinity, and -Infinity



1377
1378
1379
1380
1381
1382
 
# File 'ext/json/ext/generator/generator.c', line 1377

static VALUE cState_allow_nan_set(VALUE self, VALUE enable)
{
    GET_STATE(self);
    state->allow_nan = RTEST(enable);
    return Qnil;
}

#allow_nan? ⇒ Boolean

Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise returns false.

Returns:

  • (Boolean) 


1366
1367
1368
1369
1370
 
# File 'ext/json/ext/generator/generator.c', line 1366

static VALUE cState_allow_nan_p(VALUE self)
{
    GET_STATE(self);
    return state->allow_nan ? Qtrue : Qfalse;
}

#array_nl ⇒ Object

This string is put at the end of a line that holds a JSON array.



1243
1244
1245
1246
1247
 
# File 'ext/json/ext/generator/generator.c', line 1243

static VALUE cState_array_nl(VALUE self)
{
    GET_STATE(self);
    return state->array_nl ? state->array_nl : rb_str_freeze(rb_utf8_str_new("", 0));
}

#array_nl=(array_nl) ⇒ Object

This string is put at the end of a line that holds a JSON array.



1254
1255
1256
1257
1258
1259
 
# File 'ext/json/ext/generator/generator.c', line 1254

static VALUE cState_array_nl_set(VALUE self, VALUE array_nl)
{
    GET_STATE(self);
    RB_OBJ_WRITE(self, &state->array_nl, string_config(array_nl));
    return Qnil;
}

#ascii_only=(enable) ⇒ Object

This sets whether only ASCII characters should be generated.



1401
1402
1403
1404
1405
1406
 
# File 'ext/json/ext/generator/generator.c', line 1401

static VALUE cState_ascii_only_set(VALUE self, VALUE enable)
{
    GET_STATE(self);
    state->ascii_only = RTEST(enable);
    return Qnil;
}

#ascii_only? ⇒ Boolean

Returns true, if only ASCII characters should be generated. Otherwise returns false.

Returns:

  • (Boolean) 


1390
1391
1392
1393
1394
 
# File 'ext/json/ext/generator/generator.c', line 1390

static VALUE cState_ascii_only_p(VALUE self)
{
    GET_STATE(self);
    return state->ascii_only ? Qtrue : Qfalse;
}

#buffer_initial_length ⇒ Object

This integer returns the current initial length of the buffer.



1437
1438
1439
1440
1441
 
# File 'ext/json/ext/generator/generator.c', line 1437

static VALUE cState_buffer_initial_length(VALUE self)
{
    GET_STATE(self);
    return LONG2FIX(state->buffer_initial_length);
}

#buffer_initial_length=(length) ⇒ Object

This sets the initial length of the buffer to length, if length > 0, otherwise its value isn’t changed.



1458
1459
1460
1461
1462
1463
 
# File 'ext/json/ext/generator/generator.c', line 1458

static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_length)
{
    GET_STATE(self);
    buffer_initial_length_set(state, buffer_initial_length);
    return Qnil;
}

#check_circular? ⇒ Boolean

Returns true, if circular data structures should be checked, otherwise returns false.

Returns:

  • (Boolean) 


1268
1269
1270
1271
1272
 
# File 'ext/json/ext/generator/generator.c', line 1268

static VALUE cState_check_circular_p(VALUE self)
{
    GET_STATE(self);
    return state->max_nesting ? Qtrue : Qfalse;
}

#configure(opts) ⇒ Object Also known as: merge

call-seq: configure(opts)

Configure this State instance with the Hash opts, and return itself.



35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/json/ext/generator/state.rb', line 35

def configure(opts)
  unless opts.is_a?(Hash)
    if opts.respond_to?(:to_hash)
      opts = opts.to_hash
    elsif opts.respond_to?(:to_h)
      opts = opts.to_h
    else
      raise TypeError, "can't convert #{opts.class} into Hash"
    end
  end
  _configure(opts)
end

#depth ⇒ Object

This integer returns the current depth of data structure nesting.



1413
1414
1415
1416
1417
 
# File 'ext/json/ext/generator/generator.c', line 1413

static VALUE cState_depth(VALUE self)
{
    GET_STATE(self);
    return LONG2FIX(state->depth);
}

#depth=(depth) ⇒ Object

This sets the maximum level of data structure nesting in the generated JSON to the integer depth, max_nesting = 0 if no maximum should be checked.



1425
1426
1427
1428
1429
1430
 
# File 'ext/json/ext/generator/generator.c', line 1425

static VALUE cState_depth_set(VALUE self, VALUE depth)
{
    GET_STATE(self);
    state->depth = long_config(depth);
    return Qnil;
}

#generate(obj) ⇒ Object

Generates a valid JSON document from object obj and returns the result. If no valid JSON document can be created this method raises a GeneratorError exception.



1075
1076
1077
1078
1079
1080
1081
 
# File 'ext/json/ext/generator/generator.c', line 1075

static VALUE cState_generate(VALUE self, VALUE obj)
{
    VALUE result = cState_partial_generate(self, obj, generate_json);
    GET_STATE(self);
    (void)state;
    return result;
}

#indent ⇒ Object

Returns the string that is used to indent levels in the JSON text.



1136
1137
1138
1139
1140
 
# File 'ext/json/ext/generator/generator.c', line 1136

static VALUE cState_indent(VALUE self)
{
    GET_STATE(self);
    return state->indent ? state->indent : rb_str_freeze(rb_utf8_str_new("", 0));
}

#indent=(indent) ⇒ Object

Sets the string that is used to indent levels in the JSON text.



1158
1159
1160
1161
1162
1163
 
# File 'ext/json/ext/generator/generator.c', line 1158

static VALUE cState_indent_set(VALUE self, VALUE indent)
{
    GET_STATE(self);
    RB_OBJ_WRITE(self, &state->indent, string_config(indent));
    return Qnil;
}

#initialize_copy(orig) ⇒ Object

Initializes this object from orig if it can be duplicated/cloned and returns it.



1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
 
# File 'ext/json/ext/generator/generator.c', line 1095

static VALUE cState_init_copy(VALUE obj, VALUE orig)
{
    JSON_Generator_State *objState, *origState;

    if (obj == orig) return obj;
    GET_STATE_TO(obj, objState);
    GET_STATE_TO(orig, origState);
    if (!objState) rb_raise(rb_eArgError, "unallocated JSON::State");

    MEMCPY(objState, origState, JSON_Generator_State, 1);
    objState->indent = origState->indent;
    objState->space = origState->space;
    objState->space_before = origState->space_before;
    objState->object_nl = origState->object_nl;
    objState->array_nl = origState->array_nl;
    return obj;
}

#max_nesting ⇒ Object

This integer returns the maximum level of data structure nesting in the generated JSON, max_nesting = 0 if no maximum is checked.



1280
1281
1282
1283
1284
 
# File 'ext/json/ext/generator/generator.c', line 1280

static VALUE cState_max_nesting(VALUE self)
{
    GET_STATE(self);
    return LONG2FIX(state->max_nesting);
}

#max_nesting=(depth) ⇒ Object

This sets the maximum level of data structure nesting in the generated JSON to the integer depth, max_nesting = 0 if no maximum should be checked.



1297
1298
1299
1300
1301
1302
 
# File 'ext/json/ext/generator/generator.c', line 1297

static VALUE cState_max_nesting_set(VALUE self, VALUE depth)
{
    GET_STATE(self);
    state->max_nesting = long_config(depth);
    return Qnil;
}

#object_nl ⇒ Object

This string is put at the end of a line that holds a JSON object (or Hash).



1219
1220
1221
1222
1223
 
# File 'ext/json/ext/generator/generator.c', line 1219

static VALUE cState_object_nl(VALUE self)
{
    GET_STATE(self);
    return state->object_nl ? state->object_nl : rb_str_freeze(rb_utf8_str_new("", 0));
}

#object_nl=(object_nl) ⇒ Object

This string is put at the end of a line that holds a JSON object (or Hash).



1231
1232
1233
1234
1235
1236
 
# File 'ext/json/ext/generator/generator.c', line 1231

static VALUE cState_object_nl_set(VALUE self, VALUE object_nl)
{
    GET_STATE(self);
    RB_OBJ_WRITE(self, &state->object_nl, string_config(object_nl));
    return Qnil;
}

#script_safe ⇒ Object Also known as: escape_slash

If this boolean is true, the forward slashes will be escaped in the json output.



1310
1311
1312
1313
1314
 
# File 'ext/json/ext/generator/generator.c', line 1310

static VALUE cState_script_safe(VALUE self)
{
    GET_STATE(self);
    return state->script_safe ? Qtrue : Qfalse;
}

#script_safe=(enable) ⇒ Object Also known as: escape_slash=

This sets whether or not the forward slashes will be escaped in the json output.



1322
1323
1324
1325
1326
1327
 
# File 'ext/json/ext/generator/generator.c', line 1322

static VALUE cState_script_safe_set(VALUE self, VALUE enable)
{
    GET_STATE(self);
    state->script_safe = RTEST(enable);
    return Qnil;
}

#script_safe ⇒ Boolean Also known as: escape_slash?

If this boolean is true, the forward slashes will be escaped in the json output.

Returns:

  • (Boolean) 


1310
1311
1312
1313
1314
 
# File 'ext/json/ext/generator/generator.c', line 1310

static VALUE cState_script_safe(VALUE self)
{
    GET_STATE(self);
    return state->script_safe ? Qtrue : Qfalse;
}

#space ⇒ Object

Returns the string that is used to insert a space between the tokens in a JSON string.



1171
1172
1173
1174
1175
 
# File 'ext/json/ext/generator/generator.c', line 1171

static VALUE cState_space(VALUE self)
{
    GET_STATE(self);
    return state->space ? state->space : rb_str_freeze(rb_utf8_str_new("", 0));
}

#space=(space) ⇒ Object

Sets space to the string that is used to insert a space between the tokens in a JSON string.



1183
1184
1185
1186
1187
1188
 
# File 'ext/json/ext/generator/generator.c', line 1183

static VALUE cState_space_set(VALUE self, VALUE space)
{
    GET_STATE(self);
    RB_OBJ_WRITE(self, &state->space, string_config(space));
    return Qnil;
}

#space_before ⇒ Object

Returns the string that is used to insert a space before the ‘:’ in JSON objects.



1195
1196
1197
1198
1199
 
# File 'ext/json/ext/generator/generator.c', line 1195

static VALUE cState_space_before(VALUE self)
{
    GET_STATE(self);
    return state->space_before ? state->space_before : rb_str_freeze(rb_utf8_str_new("", 0));
}

#space_before=(space_before) ⇒ Object

Sets the string that is used to insert a space before the ‘:’ in JSON objects.



1206
1207
1208
1209
1210
1211
 
# File 'ext/json/ext/generator/generator.c', line 1206

static VALUE cState_space_before_set(VALUE self, VALUE space_before)
{
    GET_STATE(self);
    RB_OBJ_WRITE(self, &state->space_before, string_config(space_before));
    return Qnil;
}

#strict ⇒ Object

If this boolean is false, types unsupported by the JSON format will be serialized as strings. If this boolean is true, types unsupported by the JSON format will raise a JSON::GeneratorError.



1337
1338
1339
1340
1341
 
# File 'ext/json/ext/generator/generator.c', line 1337

static VALUE cState_strict(VALUE self)
{
    GET_STATE(self);
    return state->strict ? Qtrue : Qfalse;
}

#strict=(enable) ⇒ Object

This sets whether or not to serialize types unsupported by the JSON format as strings. If this boolean is false, types unsupported by the JSON format will be serialized as strings. If this boolean is true, types unsupported by the JSON format will raise a JSON::GeneratorError.



1353
1354
1355
1356
1357
1358
 
# File 'ext/json/ext/generator/generator.c', line 1353

static VALUE cState_strict_set(VALUE self, VALUE enable)
{
    GET_STATE(self);
    state->strict = RTEST(enable);
    return Qnil;
}

#strict ⇒ Boolean

If this boolean is false, types unsupported by the JSON format will be serialized as strings. If this boolean is true, types unsupported by the JSON format will raise a JSON::GeneratorError.

Returns:

  • (Boolean) 


1337
1338
1339
1340
1341
 
# File 'ext/json/ext/generator/generator.c', line 1337

static VALUE cState_strict(VALUE self)
{
    GET_STATE(self);
    return state->strict ? Qtrue : Qfalse;
}

#to_h ⇒ Object Also known as: to_hash

call-seq: to_h

Returns the configuration instance variables as a hash, that can be passed to the configure method.



54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/json/ext/generator/state.rb', line 54

def to_h
  result = {
    indent: indent,
    space: space,
    space_before: space_before,
    object_nl: object_nl,
    array_nl: array_nl,
    allow_nan: allow_nan?,
    ascii_only: ascii_only?,
    max_nesting: max_nesting,
    script_safe: script_safe?,
    strict: strict?,
    depth: depth,
    buffer_initial_length: buffer_initial_length,
  }

  instance_variables.each do |iv|
    iv = iv.to_s[1..-1]
    result[iv.to_sym] = self[iv]
  end

  result
end