Class: JSON::Ext::Generator::State
- Inherits:
-
Object
- Object
- JSON::Ext::Generator::State
- Defined in:
- ext/json/ext/generator/generator.c
Class Method Summary collapse
-
.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.
Instance Method Summary collapse
-
#[](name) ⇒ Object
Return the value returned by method
name
. -
#[]=(name, value) ⇒ Object
Set the attribute name to value.
-
#allow_nan? ⇒ Boolean
Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise returns false.
-
#array_nl ⇒ Object
This string is put at the end of a line that holds a JSON array.
-
#array_nl=(array_nl) ⇒ Object
This string is put at the end of a line that holds a JSON array.
-
#ascii_only? ⇒ Boolean
Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise returns false.
-
#buffer_initial_length ⇒ Object
This integer returns the current inital length of the buffer.
-
#buffer_initial_length=(length) ⇒ Object
This sets the initial length of the buffer to
length
, iflength
> 0, otherwise its value isn’t changed. -
#check_circular? ⇒ Boolean
Returns true, if circular data structures should be checked, otherwise returns false.
-
#configure(opts) ⇒ Object
(also: #merge)
Configure this State instance with the Hash opts, and return itself.
-
#depth ⇒ Object
This integer returns the current depth of data structure nesting.
-
#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.
-
#generate(obj) ⇒ Object
Generates a valid JSON document from object
obj
and returns the result. -
#indent ⇒ Object
This string is used to indent levels in the JSON text.
-
#indent=(indent) ⇒ Object
This string is used to indent levels in the JSON text.
-
#new(opts = {}) ⇒ Object
constructor
Instantiates a new State object, configured by opts.
-
#initialize_copy(orig) ⇒ Object
Initializes this object from orig if it to be duplicated/cloned and returns it.
-
#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.
-
#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.
-
#object_nl ⇒ Object
This string is put at the end of a line that holds a JSON object (or Hash).
-
#object_nl=(object_nl) ⇒ Object
This string is put at the end of a line that holds a JSON object (or Hash).
-
#quirks_mode? ⇒ Object
Returns true, if quirks mode is enabled.
-
#quirks_mode=(enable) ⇒ Object
If set to true, enables the quirks_mode mode.
-
#quirks_mode? ⇒ Boolean
Returns true, if quirks mode is enabled.
-
#space ⇒ Object
This string is used to insert a space between the tokens in a JSON string.
-
#space=(space) ⇒ Object
This string is used to insert a space between the tokens in a JSON string.
-
#space_before ⇒ Object
This string is used to insert a space before the ‘:’ in JSON objects.
-
#space_before=(space_before) ⇒ Object
This string is used to insert a space before the ‘:’ in JSON objects.
-
#to_h ⇒ Object
(also: #to_hash)
Returns the configuration instance variables as a hash, that can be passed to the configure method.
Constructor Details
#new(opts = {}) ⇒ Object
Instantiates a new State object, configured by opts.
opts can have the following keys:
-
indent: a string used to indent levels (default: ”),
-
space: a string that is put after, a : or , delimiter (default: ”),
-
space_before: a string that is put before a : pair delimiter (default: ”),
-
object_nl: a string that is put at the end of a JSON object (default: ”),
-
array_nl: a string that is put at the end of a JSON array (default: ”),
-
allow_nan: true if NaN, Infinity, and -Infinity should be generated, otherwise an exception is thrown, if these values are encountered. This options defaults to false.
-
quirks_mode: Enables quirks_mode for parser, that is for example generating single JSON values instead of documents is possible.
-
buffer_initial_length: sets the initial length of the generator’s internal buffer.
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# File 'ext/json/ext/generator/generator.c', line 939
static VALUE cState_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE opts;
GET_STATE(self);
state->max_nesting = 100;
state->buffer_initial_length = FBUFFER_INITIAL_LENGTH_DEFAULT;
rb_scan_args(argc, argv, "01", &opts);
if (!NIL_P(opts)) cState_configure(self, opts);
return self;
}
|
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.
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# File 'ext/json/ext/generator/generator.c', line 983
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 {
if (NIL_P(CJSON_SAFE_STATE_PROTOTYPE)) {
CJSON_SAFE_STATE_PROTOTYPE = rb_const_get(mJSON, i_SAFE_STATE_PROTOTYPE);
}
return rb_funcall(CJSON_SAFE_STATE_PROTOTYPE, i_dup, 0);
}
}
|
Instance Method Details
#[](name) ⇒ Object
Return the value returned by method name
.
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# File 'ext/json/ext/generator/generator.c', line 643
static VALUE cState_aref(VALUE self, VALUE name)
{
name = rb_funcall(name, i_to_s, 0);
if (RTEST(rb_funcall(self, i_respond_to_p, 1, name))) {
return rb_funcall(self, i_send, 1, name);
} else {
return rb_ivar_get(self, rb_intern_str(rb_str_concat(rb_str_new2("@"), name)));
}
}
|
#[]=(name, value) ⇒ Object
Set the attribute name to value.
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# File 'ext/json/ext/generator/generator.c', line 658
static VALUE cState_aset(VALUE self, VALUE name, VALUE value)
{
VALUE name_writer;
name = rb_funcall(name, i_to_s, 0);
name_writer = rb_str_cat2(rb_str_dup(name), "=");
if (RTEST(rb_funcall(self, i_respond_to_p, 1, name_writer))) {
return rb_funcall(self, i_send, 2, name_writer, value);
} else {
rb_ivar_set(self, rb_intern_str(rb_str_concat(rb_str_new2("@"), name)), value);
}
return Qnil;
}
|
#allow_nan? ⇒ Boolean
Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise returns false.
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# File 'ext/json/ext/generator/generator.c', line 1223
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.
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# File 'ext/json/ext/generator/generator.c', line 1149
static VALUE cState_array_nl(VALUE self)
{
GET_STATE(self);
return state->array_nl ? rb_str_new(state->array_nl, state->array_nl_len) : rb_str_new2("");
}
|
#array_nl=(array_nl) ⇒ Object
This string is put at the end of a line that holds a JSON array.
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# File 'ext/json/ext/generator/generator.c', line 1160
static VALUE cState_array_nl_set(VALUE self, VALUE array_nl)
{
unsigned long len;
GET_STATE(self);
Check_Type(array_nl, T_STRING);
len = RSTRING_LEN(array_nl);
if (len == 0) {
if (state->array_nl) {
ruby_xfree(state->array_nl);
state->array_nl = NULL;
}
} else {
if (state->array_nl) ruby_xfree(state->array_nl);
state->array_nl = strdup(RSTRING_PTR(array_nl));
state->array_nl_len = len;
}
return Qnil;
}
|
#ascii_only? ⇒ Boolean
Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise returns false.
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# File 'ext/json/ext/generator/generator.c', line 1235
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 inital length of the buffer.
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# File 'ext/json/ext/generator/generator.c', line 1294
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.
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# File 'ext/json/ext/generator/generator.c', line 1306
static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_length)
{
long initial_length;
GET_STATE(self);
Check_Type(buffer_initial_length, T_FIXNUM);
initial_length = FIX2LONG(buffer_initial_length);
if (initial_length > 0) {
state->buffer_initial_length = initial_length;
}
return Qnil;
}
|
#check_circular? ⇒ Boolean
Returns true, if circular data structures should be checked, otherwise returns false.
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# File 'ext/json/ext/generator/generator.c', line 1186
static VALUE cState_check_circular_p(VALUE self)
{
GET_STATE(self);
return state->max_nesting ? Qtrue : Qfalse;
}
|
#configure(opts) ⇒ Object Also known as: merge
Configure this State instance with the Hash opts, and return itself.
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# File 'ext/json/ext/generator/generator.c', line 510
static VALUE cState_configure(VALUE self, VALUE opts)
{
VALUE tmp;
GET_STATE(self);
tmp = rb_convert_type(opts, T_HASH, "Hash", "to_hash");
if (NIL_P(tmp)) tmp = rb_convert_type(opts, T_HASH, "Hash", "to_h");
if (NIL_P(tmp)) {
rb_raise(rb_eArgError, "opts has to be hash like or convertable into a hash");
}
opts = tmp;
tmp = rb_hash_aref(opts, ID2SYM(i_indent));
if (RTEST(tmp)) {
unsigned long len;
Check_Type(tmp, T_STRING);
len = RSTRING_LEN(tmp);
state->indent = fstrndup(RSTRING_PTR(tmp), len + 1);
state->indent_len = len;
}
tmp = rb_hash_aref(opts, ID2SYM(i_space));
if (RTEST(tmp)) {
unsigned long len;
Check_Type(tmp, T_STRING);
len = RSTRING_LEN(tmp);
state->space = fstrndup(RSTRING_PTR(tmp), len + 1);
state->space_len = len;
}
tmp = rb_hash_aref(opts, ID2SYM(i_space_before));
if (RTEST(tmp)) {
unsigned long len;
Check_Type(tmp, T_STRING);
len = RSTRING_LEN(tmp);
state->space_before = fstrndup(RSTRING_PTR(tmp), len + 1);
state->space_before_len = len;
}
tmp = rb_hash_aref(opts, ID2SYM(i_array_nl));
if (RTEST(tmp)) {
unsigned long len;
Check_Type(tmp, T_STRING);
len = RSTRING_LEN(tmp);
state->array_nl = fstrndup(RSTRING_PTR(tmp), len + 1);
state->array_nl_len = len;
}
tmp = rb_hash_aref(opts, ID2SYM(i_object_nl));
if (RTEST(tmp)) {
unsigned long len;
Check_Type(tmp, T_STRING);
len = RSTRING_LEN(tmp);
state->object_nl = fstrndup(RSTRING_PTR(tmp), len + 1);
state->object_nl_len = len;
}
tmp = ID2SYM(i_max_nesting);
state->max_nesting = 100;
if (option_given_p(opts, tmp)) {
VALUE max_nesting = rb_hash_aref(opts, tmp);
if (RTEST(max_nesting)) {
Check_Type(max_nesting, T_FIXNUM);
state->max_nesting = FIX2LONG(max_nesting);
} else {
state->max_nesting = 0;
}
}
tmp = ID2SYM(i_depth);
state->depth = 0;
if (option_given_p(opts, tmp)) {
VALUE depth = rb_hash_aref(opts, tmp);
if (RTEST(depth)) {
Check_Type(depth, T_FIXNUM);
state->depth = FIX2LONG(depth);
} else {
state->depth = 0;
}
}
tmp = ID2SYM(i_buffer_initial_length);
if (option_given_p(opts, tmp)) {
VALUE buffer_initial_length = rb_hash_aref(opts, tmp);
if (RTEST(buffer_initial_length)) {
long initial_length;
Check_Type(buffer_initial_length, T_FIXNUM);
initial_length = FIX2LONG(buffer_initial_length);
if (initial_length > 0) state->buffer_initial_length = initial_length;
}
}
tmp = rb_hash_aref(opts, ID2SYM(i_allow_nan));
state->allow_nan = RTEST(tmp);
tmp = rb_hash_aref(opts, ID2SYM(i_ascii_only));
state->ascii_only = RTEST(tmp);
tmp = rb_hash_aref(opts, ID2SYM(i_quirks_mode));
state->quirks_mode = RTEST(tmp);
return self;
}
|
#depth ⇒ Object
This integer returns the current depth of data structure nesting.
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# File 'ext/json/ext/generator/generator.c', line 1269
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.
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# File 'ext/json/ext/generator/generator.c', line 1281
static VALUE cState_depth_set(VALUE self, VALUE depth)
{
GET_STATE(self);
Check_Type(depth, T_FIXNUM);
state->depth = FIX2LONG(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.
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# File 'ext/json/ext/generator/generator.c', line 909
static VALUE cState_generate(VALUE self, VALUE obj)
{
VALUE result = cState_partial_generate(self, obj);
GET_STATE(self);
if (!state->quirks_mode && !isArrayOrObject(result)) {
rb_raise(eGeneratorError, "only generation of JSON objects or arrays allowed");
}
return result;
}
|
#indent ⇒ Object
This string is used to indent levels in the JSON text.
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# File 'ext/json/ext/generator/generator.c', line 1002
static VALUE cState_indent(VALUE self)
{
GET_STATE(self);
return state->indent ? rb_str_new(state->indent, state->indent_len) : rb_str_new2("");
}
|
#indent=(indent) ⇒ Object
This string is used to indent levels in the JSON text.
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# File 'ext/json/ext/generator/generator.c', line 1013
static VALUE cState_indent_set(VALUE self, VALUE indent)
{
unsigned long len;
GET_STATE(self);
Check_Type(indent, T_STRING);
len = RSTRING_LEN(indent);
if (len == 0) {
if (state->indent) {
ruby_xfree(state->indent);
state->indent = NULL;
state->indent_len = 0;
}
} else {
if (state->indent) ruby_xfree(state->indent);
state->indent = strdup(RSTRING_PTR(indent));
state->indent_len = len;
}
return Qnil;
}
|
#initialize_copy(orig) ⇒ Object
Initializes this object from orig if it to be duplicated/cloned and returns it.
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# File 'ext/json/ext/generator/generator.c', line 956
static VALUE cState_init_copy(VALUE obj, VALUE orig)
{
JSON_Generator_State *objState, *origState;
Data_Get_Struct(obj, JSON_Generator_State, objState);
Data_Get_Struct(orig, JSON_Generator_State, origState);
if (!objState) rb_raise(rb_eArgError, "unallocated JSON::State");
MEMCPY(objState, origState, JSON_Generator_State, 1);
objState->indent = fstrndup(origState->indent, origState->indent_len);
objState->space = fstrndup(origState->space, origState->space_len);
objState->space_before = fstrndup(origState->space_before, origState->space_before_len);
objState->object_nl = fstrndup(origState->object_nl, origState->object_nl_len);
objState->array_nl = fstrndup(origState->array_nl, origState->array_nl_len);
if (origState->array_delim) objState->array_delim = fbuffer_dup(origState->array_delim);
if (origState->object_delim) objState->object_delim = fbuffer_dup(origState->object_delim);
if (origState->object_delim2) objState->object_delim2 = fbuffer_dup(origState->object_delim2);
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.
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# File 'ext/json/ext/generator/generator.c', line 1198
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.
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# File 'ext/json/ext/generator/generator.c', line 1210
static VALUE cState_max_nesting_set(VALUE self, VALUE depth)
{
GET_STATE(self);
Check_Type(depth, T_FIXNUM);
return state->max_nesting = FIX2LONG(depth);
}
|
#object_nl ⇒ Object
This string is put at the end of a line that holds a JSON object (or Hash).
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# File 'ext/json/ext/generator/generator.c', line 1113
static VALUE cState_object_nl(VALUE self)
{
GET_STATE(self);
return state->object_nl ? rb_str_new(state->object_nl, state->object_nl_len) : rb_str_new2("");
}
|
#object_nl=(object_nl) ⇒ Object
This string is put at the end of a line that holds a JSON object (or Hash).
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# File 'ext/json/ext/generator/generator.c', line 1125
static VALUE cState_object_nl_set(VALUE self, VALUE object_nl)
{
unsigned long len;
GET_STATE(self);
Check_Type(object_nl, T_STRING);
len = RSTRING_LEN(object_nl);
if (len == 0) {
if (state->object_nl) {
ruby_xfree(state->object_nl);
state->object_nl = NULL;
}
} else {
if (state->object_nl) ruby_xfree(state->object_nl);
state->object_nl = strdup(RSTRING_PTR(object_nl));
state->object_nl_len = len;
}
return Qnil;
}
|
#quirks_mode? ⇒ Object
Returns true, if quirks mode is enabled. Otherwise returns false.
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# File 'ext/json/ext/generator/generator.c', line 1246
static VALUE cState_quirks_mode_p(VALUE self)
{
GET_STATE(self);
return state->quirks_mode ? Qtrue : Qfalse;
}
|
#quirks_mode=(enable) ⇒ Object
If set to true, enables the quirks_mode mode.
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# File 'ext/json/ext/generator/generator.c', line 1257
static VALUE cState_quirks_mode_set(VALUE self, VALUE enable)
{
GET_STATE(self);
state->quirks_mode = RTEST(enable);
return Qnil;
}
|
#quirks_mode? ⇒ Boolean
Returns true, if quirks mode is enabled. Otherwise returns false.
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# File 'ext/json/ext/generator/generator.c', line 1246
static VALUE cState_quirks_mode_p(VALUE self)
{
GET_STATE(self);
return state->quirks_mode ? Qtrue : Qfalse;
}
|
#space ⇒ Object
This string is used to insert a space between the tokens in a JSON string.
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# File 'ext/json/ext/generator/generator.c', line 1039
static VALUE cState_space(VALUE self)
{
GET_STATE(self);
return state->space ? rb_str_new(state->space, state->space_len) : rb_str_new2("");
}
|
#space=(space) ⇒ Object
This string is used to insert a space between the tokens in a JSON string.
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# File 'ext/json/ext/generator/generator.c', line 1051
static VALUE cState_space_set(VALUE self, VALUE space)
{
unsigned long len;
GET_STATE(self);
Check_Type(space, T_STRING);
len = RSTRING_LEN(space);
if (len == 0) {
if (state->space) {
ruby_xfree(state->space);
state->space = NULL;
state->space_len = 0;
}
} else {
if (state->space) ruby_xfree(state->space);
state->space = strdup(RSTRING_PTR(space));
state->space_len = len;
}
return Qnil;
}
|
#space_before ⇒ Object
This string is used to insert a space before the ‘:’ in JSON objects.
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# File 'ext/json/ext/generator/generator.c', line 1076
static VALUE cState_space_before(VALUE self)
{
GET_STATE(self);
return state->space_before ? rb_str_new(state->space_before, state->space_before_len) : rb_str_new2("");
}
|
#space_before=(space_before) ⇒ Object
This string is used to insert a space before the ‘:’ in JSON objects.
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# File 'ext/json/ext/generator/generator.c', line 1087
static VALUE cState_space_before_set(VALUE self, VALUE space_before)
{
unsigned long len;
GET_STATE(self);
Check_Type(space_before, T_STRING);
len = RSTRING_LEN(space_before);
if (len == 0) {
if (state->space_before) {
ruby_xfree(state->space_before);
state->space_before = NULL;
state->space_before_len = 0;
}
} else {
if (state->space_before) ruby_xfree(state->space_before);
state->space_before = strdup(RSTRING_PTR(space_before));
state->space_before_len = len;
}
return Qnil;
}
|
#to_h ⇒ Object Also known as: to_hash
Returns the configuration instance variables as a hash, that can be passed to the configure method.
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# File 'ext/json/ext/generator/generator.c', line 619
static VALUE cState_to_h(VALUE self)
{
VALUE result = rb_hash_new();
GET_STATE(self);
set_state_ivars(result, self);
rb_hash_aset(result, ID2SYM(i_indent), rb_str_new(state->indent, state->indent_len));
rb_hash_aset(result, ID2SYM(i_space), rb_str_new(state->space, state->space_len));
rb_hash_aset(result, ID2SYM(i_space_before), rb_str_new(state->space_before, state->space_before_len));
rb_hash_aset(result, ID2SYM(i_object_nl), rb_str_new(state->object_nl, state->object_nl_len));
rb_hash_aset(result, ID2SYM(i_array_nl), rb_str_new(state->array_nl, state->array_nl_len));
rb_hash_aset(result, ID2SYM(i_allow_nan), state->allow_nan ? Qtrue : Qfalse);
rb_hash_aset(result, ID2SYM(i_ascii_only), state->ascii_only ? Qtrue : Qfalse);
rb_hash_aset(result, ID2SYM(i_quirks_mode), state->quirks_mode ? Qtrue : Qfalse);
rb_hash_aset(result, ID2SYM(i_max_nesting), LONG2FIX(state->max_nesting));
rb_hash_aset(result, ID2SYM(i_depth), LONG2FIX(state->depth));
rb_hash_aset(result, ID2SYM(i_buffer_initial_length), LONG2FIX(state->buffer_initial_length));
return result;
}
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