From af1c4167287b9353fec766f932fe4afe97116ad4 Mon Sep 17 00:00:00 2001 From: naruse Date: Mon, 4 Jun 2007 12:31:26 +0000 Subject: * lib/json.rb, lib/json, ext/json, test/json: import JSON library. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12428 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/json/ext/generator/generator.c | 728 +++++++++++++++++++++++++++++++++++++ 1 file changed, 728 insertions(+) create mode 100755 ext/json/ext/generator/generator.c (limited to 'ext/json/ext/generator/generator.c') diff --git a/ext/json/ext/generator/generator.c b/ext/json/ext/generator/generator.c new file mode 100755 index 0000000000..60e09355f0 --- /dev/null +++ b/ext/json/ext/generator/generator.c @@ -0,0 +1,728 @@ +/* vim: set cin et sw=4 ts=4: */ + +#include +#include "ruby.h" +#include "st.h" +#include "unicode.h" + +static VALUE mJSON, mExt, mGenerator, cState, mGeneratorMethods, mObject, + mHash, mArray, mInteger, mFloat, mString, mString_Extend, + mTrueClass, mFalseClass, mNilClass, eGeneratorError, + eCircularDatastructure; + +static ID i_to_s, i_to_json, i_new, i_indent, i_space, i_space_before, + i_object_nl, i_array_nl, i_check_circular, i_pack, i_unpack, + i_create_id, i_extend; + +typedef struct JSON_Generator_StateStruct { + VALUE indent; + VALUE space; + VALUE space_before; + VALUE object_nl; + VALUE array_nl; + int check_circular; + VALUE seen; + VALUE memo; + VALUE depth; + int flag; +} JSON_Generator_State; + +#define GET_STATE(self) \ + JSON_Generator_State *state; \ + Data_Get_Struct(self, JSON_Generator_State, state); + +/* + * Document-module: JSON::Ext::Generator + * + * This is the JSON generator implemented as a C extension. It can be + * configured to be used by setting + * + * JSON.generator = JSON::Ext::Generator + * + * with the method generator= in JSON. + * + */ + +static int hash_to_json_state_i(VALUE key, VALUE value, VALUE Vstate) +{ + VALUE json, buf, Vdepth; + GET_STATE(Vstate); + buf = state->memo; + Vdepth = state->depth; + + if (key == Qundef) return ST_CONTINUE; + if (state->flag) { + state->flag = 0; + rb_str_buf_cat2(buf, ","); + if (RSTRING_LEN(state->object_nl)) rb_str_buf_append(buf, state->object_nl); + } + if (RSTRING_LEN(state->object_nl)) { + rb_str_buf_append(buf, rb_str_times(state->indent, Vdepth)); + } + json = rb_funcall(rb_funcall(key, i_to_s, 0), i_to_json, 2, Vstate, Vdepth); + rb_str_buf_append(buf, json); + OBJ_INFECT(buf, json); + if (RSTRING_LEN(state->space_before)) { + rb_str_buf_append(buf, state->space_before); + } + rb_str_buf_cat2(buf, ":"); + if (RSTRING_LEN(state->space)) rb_str_buf_append(buf, state->space); + json = rb_funcall(value, i_to_json, 2, Vstate, Vdepth); + state->flag = 1; + rb_str_buf_append(buf, json); + OBJ_INFECT(buf, json); + state->depth = Vdepth; + state->memo = buf; + return ST_CONTINUE; +} + +inline static VALUE mHash_json_transfrom(VALUE self, VALUE Vstate, VALUE Vdepth) { + long depth, len = RHASH(self)->tbl->num_entries; + VALUE result; + GET_STATE(Vstate); + + depth = 1 + FIX2LONG(Vdepth); + result = rb_str_buf_new(len); + state->memo = result; + state->depth = LONG2FIX(depth); + state->flag = 0; + rb_str_buf_cat2(result, "{"); + if (RSTRING_LEN(state->object_nl)) rb_str_buf_append(result, state->object_nl); + rb_hash_foreach(self, hash_to_json_state_i, Vstate); + if (RSTRING_LEN(state->object_nl)) rb_str_buf_append(result, state->object_nl); + if (RSTRING_LEN(state->object_nl)) { + rb_str_buf_append(result, rb_str_times(state->indent, Vdepth)); + } + rb_str_buf_cat2(result, "}"); + return result; +} + +static int hash_to_json_i(VALUE key, VALUE value, VALUE buf) +{ + VALUE tmp; + + if (key == Qundef) return ST_CONTINUE; + if (RSTRING_LEN(buf) > 1) rb_str_buf_cat2(buf, ","); + tmp = rb_funcall(rb_funcall(key, i_to_s, 0), i_to_json, 0); + rb_str_buf_append(buf, tmp); + OBJ_INFECT(buf, tmp); + rb_str_buf_cat2(buf, ":"); + tmp = rb_funcall(value, i_to_json, 0); + rb_str_buf_append(buf, tmp); + OBJ_INFECT(buf, tmp); + + return ST_CONTINUE; +} + +/* + * call-seq: to_json(state = nil, depth = 0) + * + * Returns a JSON string containing a JSON object, that is unparsed from + * this Hash instance. + * _state_ is a JSON::State object, that can also be used to configure the + * produced JSON string output further. + * _depth_ is used to find out nesting depth, to indent accordingly. + */ +static VALUE mHash_to_json(int argc, VALUE *argv, VALUE self) +{ + VALUE Vstate, Vdepth, result; + long depth; + + rb_scan_args(argc, argv, "02", &Vstate, &Vdepth); + depth = NIL_P(Vdepth) ? 0 : FIX2LONG(Vdepth); + if (NIL_P(Vstate)) { + long len = RHASH(self)->tbl->num_entries; + result = rb_str_buf_new(len); + rb_str_buf_cat2(result, "{"); + rb_hash_foreach(self, hash_to_json_i, result); + rb_str_buf_cat2(result, "}"); + } else { + GET_STATE(Vstate); + if (state->check_circular) { + VALUE self_id = rb_obj_id(self); + if (RTEST(rb_hash_aref(state->seen, self_id))) { + rb_raise(eCircularDatastructure, + "circular data structures not supported!"); + } + rb_hash_aset(state->seen, self_id, Qtrue); + result = mHash_json_transfrom(self, Vstate, LONG2FIX(depth)); + rb_hash_delete(state->seen, self_id); + } else { + result = mHash_json_transfrom(self, Vstate, LONG2FIX(depth)); + } + } + OBJ_INFECT(result, self); + return result; +} + +inline static VALUE mArray_json_transfrom(VALUE self, VALUE Vstate, VALUE Vdepth) { + long i, len = RARRAY_LEN(self); + VALUE shift, result; + long depth = NIL_P(Vdepth) ? 0 : FIX2LONG(Vdepth); + VALUE delim = rb_str_new2(","); + GET_STATE(Vstate); + + if (state->check_circular) { + VALUE self_id = rb_obj_id(self); + rb_hash_aset(state->seen, self_id, Qtrue); + result = rb_str_buf_new(len); + if (RSTRING_LEN(state->array_nl)) rb_str_append(delim, state->array_nl); + shift = rb_str_times(state->indent, LONG2FIX(depth + 1)); + + rb_str_buf_cat2(result, "["); + rb_str_buf_append(result, state->array_nl); + for (i = 0; i < len; i++) { + VALUE element = RARRAY_PTR(self)[i]; + if (RTEST(rb_hash_aref(state->seen, rb_obj_id(element)))) { + rb_raise(eCircularDatastructure, + "circular data structures not supported!"); + } + OBJ_INFECT(result, element); + if (i > 0) rb_str_buf_append(result, delim); + rb_str_buf_append(result, shift); + rb_str_buf_append(result, rb_funcall(element, i_to_json, 2, Vstate, LONG2FIX(depth + 1))); + } + if (RSTRING_LEN(state->array_nl)) { + rb_str_buf_append(result, state->array_nl); + rb_str_buf_append(result, rb_str_times(state->indent, LONG2FIX(depth))); + } + rb_str_buf_cat2(result, "]"); + rb_hash_delete(state->seen, self_id); + } else { + result = rb_str_buf_new(len); + if (RSTRING_LEN(state->array_nl)) rb_str_append(delim, state->array_nl); + shift = rb_str_times(state->indent, LONG2FIX(depth + 1)); + + rb_str_buf_cat2(result, "["); + rb_str_buf_append(result, state->array_nl); + for (i = 0; i < len; i++) { + VALUE element = RARRAY_PTR(self)[i]; + OBJ_INFECT(result, element); + if (i > 0) rb_str_buf_append(result, delim); + rb_str_buf_append(result, shift); + rb_str_buf_append(result, rb_funcall(element, i_to_json, 2, Vstate, LONG2FIX(depth + 1))); + } + rb_str_buf_append(result, state->array_nl); + if (RSTRING_LEN(state->array_nl)) { + rb_str_buf_append(result, rb_str_times(state->indent, LONG2FIX(depth))); + } + rb_str_buf_cat2(result, "]"); + } + return result; +} + +/* + * call-seq: to_json(state = nil, depth = 0) + * + * Returns a JSON string containing a JSON array, that is unparsed from + * this Array instance. + * _state_ is a JSON::State object, that can also be used to configure the + * produced JSON string output further. + * _depth_ is used to find out nesting depth, to indent accordingly. + */ +static VALUE mArray_to_json(int argc, VALUE *argv, VALUE self) { + VALUE Vstate, Vdepth, result; + + rb_scan_args(argc, argv, "02", &Vstate, &Vdepth); + if (NIL_P(Vstate)) { + long i, len = RARRAY_LEN(self); + result = rb_str_buf_new(2 + 2 * len); + rb_str_buf_cat2(result, "["); + for (i = 0; i < len; i++) { + VALUE element = RARRAY_PTR(self)[i]; + OBJ_INFECT(result, element); + if (i > 0) rb_str_buf_cat2(result, ","); + rb_str_buf_append(result, rb_funcall(element, i_to_json, 0)); + } + rb_str_buf_cat2(result, "]"); + } else { + result = mArray_json_transfrom(self, Vstate, Vdepth); + } + OBJ_INFECT(result, self); + return result; +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string representation for this Integer number. + */ +static VALUE mInteger_to_json(int argc, VALUE *argv, VALUE self) +{ + return rb_funcall(self, i_to_s, 0); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string representation for this Float number. + */ +static VALUE mFloat_to_json(int argc, VALUE *argv, VALUE self) +{ + return rb_funcall(self, i_to_s, 0); +} + +/* + * call-seq: String.included(modul) + * + * Extends _modul_ with the String::Extend module. + */ +static VALUE mString_included_s(VALUE self, VALUE modul) { + return rb_funcall(modul, i_extend, 1, mString_Extend); +} + +/* + * call-seq: to_json(*) + * + * This string should be encoded with UTF-8 A call to this method + * returns a JSON string encoded with UTF16 big endian characters as + * \u????. + */ +static VALUE mString_to_json(int argc, VALUE *argv, VALUE self) +{ + VALUE result = rb_str_buf_new(RSTRING_LEN(self)); + rb_str_buf_cat2(result, "\""); + JSON_convert_UTF8_to_JSON(result, self, strictConversion); + rb_str_buf_cat2(result, "\""); + return result; +} + +/* + * call-seq: to_json_raw_object() + * + * This method creates a raw object hash, that can be nested into + * other data structures and will be unparsed as a raw string. This + * method should be used, if you want to convert raw strings to JSON + * instead of UTF-8 strings, e. g. binary data. + */ +static VALUE mString_to_json_raw_object(VALUE self) { + VALUE ary; + VALUE result = rb_hash_new(); + rb_hash_aset(result, rb_funcall(mJSON, i_create_id, 0), rb_class_name(rb_obj_class(self))); + ary = rb_funcall(self, i_unpack, 1, rb_str_new2("C*")); + rb_hash_aset(result, rb_str_new2("raw"), ary); + return result; +} + +/* + * call-seq: to_json_raw(*args) + * + * This method creates a JSON text from the result of a call to + * to_json_raw_object of this String. + */ +static VALUE mString_to_json_raw(int argc, VALUE *argv, VALUE self) { + VALUE obj = mString_to_json_raw_object(self); + Check_Type(obj, T_HASH); + return mHash_to_json(argc, argv, obj); +} + +/* + * call-seq: json_create(o) + * + * Raw Strings are JSON Objects (the raw bytes are stored in an array for the + * key "raw"). The Ruby String can be created by this module method. + */ +static VALUE mString_Extend_json_create(VALUE self, VALUE o) { + VALUE ary; + Check_Type(o, T_HASH); + ary = rb_hash_aref(o, rb_str_new2("raw")); + return rb_funcall(ary, i_pack, 1, rb_str_new2("C*")); +} + +/* + * call-seq: to_json(state = nil, depth = 0) + * + * Returns a JSON string for true: 'true'. + */ +static VALUE mTrueClass_to_json(int argc, VALUE *argv, VALUE self) +{ + return rb_str_new2("true"); +} + +/* + * call-seq: to_json(state = nil, depth = 0) + * + * Returns a JSON string for false: 'false'. + */ +static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self) +{ + return rb_str_new2("false"); +} + +/* + * call-seq: to_json(state = nil, depth = 0) + * + */ +static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self) +{ + return rb_str_new2("null"); +} + +/* + * call-seq: to_json(*) + * + * Converts this object to a string (calling #to_s), converts + * it to a JSON string, and returns the result. This is a fallback, if no + * special method #to_json was defined for some object. + */ +static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self) +{ + VALUE string = rb_funcall(self, i_to_s, 0); + Check_Type(string, T_STRING); + return mString_to_json(argc, argv, string); +} + +/* + * Document-class: JSON::Ext::Generator::State + * + * This class is used to create State instances, that are use to hold data + * while generating a JSON text from a a Ruby data structure. + */ + +static void State_mark(JSON_Generator_State *state) +{ + rb_gc_mark_maybe(state->indent); + rb_gc_mark_maybe(state->space); + rb_gc_mark_maybe(state->space_before); + rb_gc_mark_maybe(state->object_nl); + rb_gc_mark_maybe(state->array_nl); + rb_gc_mark_maybe(state->seen); + rb_gc_mark_maybe(state->memo); + rb_gc_mark_maybe(state->depth); +} + +static JSON_Generator_State *State_allocate() +{ + JSON_Generator_State *state = ALLOC(JSON_Generator_State); + return state; +} + +static VALUE cState_s_allocate(VALUE klass) +{ + JSON_Generator_State *state = State_allocate(); + return Data_Wrap_Struct(klass, State_mark, -1, state); +} + +/* + * call-seq: new(opts = {}) + * + * 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: ''), + * * *check_circular*: true if checking for circular data structures + * should be done, false (the default) otherwise. + */ +static VALUE cState_initialize(int argc, VALUE *argv, VALUE self) +{ + VALUE opts; + GET_STATE(self); + + rb_scan_args(argc, argv, "01", &opts); + if (NIL_P(opts)) { + state->indent = rb_str_new2(""); + state->space = rb_str_new2(""); + state->space_before = rb_str_new2(""); + state->array_nl = rb_str_new2(""); + state->object_nl = rb_str_new2(""); + state->check_circular = 0; + } else { + VALUE tmp; + opts = rb_convert_type(opts, T_HASH, "Hash", "to_hash"); + tmp = rb_hash_aref(opts, ID2SYM(i_indent)); + if (RTEST(tmp)) { + Check_Type(tmp, T_STRING); + state->indent = tmp; + } else { + state->indent = rb_str_new2(""); + } + tmp = rb_hash_aref(opts, ID2SYM(i_space)); + if (RTEST(tmp)) { + Check_Type(tmp, T_STRING); + state->space = tmp; + } else { + state->space = rb_str_new2(""); + } + tmp = rb_hash_aref(opts, ID2SYM(i_space_before)); + if (RTEST(tmp)) { + Check_Type(tmp, T_STRING); + state->space_before = tmp; + } else { + state->space_before = rb_str_new2(""); + } + tmp = rb_hash_aref(opts, ID2SYM(i_array_nl)); + if (RTEST(tmp)) { + Check_Type(tmp, T_STRING); + state->array_nl = tmp; + } else { + state->array_nl = rb_str_new2(""); + } + tmp = rb_hash_aref(opts, ID2SYM(i_object_nl)); + if (RTEST(tmp)) { + Check_Type(tmp, T_STRING); + state->object_nl = tmp; + } else { + state->object_nl = rb_str_new2(""); + } + tmp = rb_hash_aref(opts, ID2SYM(i_check_circular)); + state->check_circular = RTEST(tmp); + } + state->seen = rb_hash_new(); + state->memo = Qnil; + state->depth = INT2FIX(0); + return self; +} + +/* + * call-seq: from_state(opts) + * + * 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. + */ +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_funcall(self, i_new, 0); + } +} + +/* + * call-seq: indent() + * + * This string is used to indent levels in the JSON text. + */ +static VALUE cState_indent(VALUE self) +{ + GET_STATE(self); + return state->indent; +} + +/* + * call-seq: indent=(indent) + * + * This string is used to indent levels in the JSON text. + */ +static VALUE cState_indent_set(VALUE self, VALUE indent) +{ + GET_STATE(self); + Check_Type(indent, T_STRING); + return state->indent = indent; +} + +/* + * call-seq: space() + * + * This string is used to insert a space between the tokens in a JSON + * string. + */ +static VALUE cState_space(VALUE self) +{ + GET_STATE(self); + return state->space; +} + +/* + * call-seq: space=(space) + * + * This string is used to insert a space between the tokens in a JSON + * string. + */ +static VALUE cState_space_set(VALUE self, VALUE space) +{ + GET_STATE(self); + Check_Type(space, T_STRING); + return state->space = space; +} + +/* + * call-seq: space_before() + * + * This string is used to insert a space before the ':' in JSON objects. + */ +static VALUE cState_space_before(VALUE self) +{ + GET_STATE(self); + return state->space_before; +} + +/* + * call-seq: space_before=(space_before) + * + * This string is used to insert a space before the ':' in JSON objects. + */ +static VALUE cState_space_before_set(VALUE self, VALUE space_before) +{ + GET_STATE(self); + Check_Type(space_before, T_STRING); + return state->space_before = space_before; +} + +/* + * call-seq: object_nl() + * + * This string is put at the end of a line that holds a JSON object (or + * Hash). + */ +static VALUE cState_object_nl(VALUE self) +{ + GET_STATE(self); + return state->object_nl; +} + +/* + * call-seq: object_nl=(object_nl) + * + * This string is put at the end of a line that holds a JSON object (or + * Hash). + */ +static VALUE cState_object_nl_set(VALUE self, VALUE object_nl) +{ + GET_STATE(self); + Check_Type(object_nl, T_STRING); + return state->object_nl = object_nl; +} + +/* + * call-seq: array_nl() + * + * This string is put at the end of a line that holds a JSON array. + */ +static VALUE cState_array_nl(VALUE self) +{ + GET_STATE(self); + return state->array_nl; +} + +/* + * call-seq: array_nl=(array_nl) + * + * This string is put at the end of a line that holds a JSON array. + */ +static VALUE cState_array_nl_set(VALUE self, VALUE array_nl) +{ + GET_STATE(self); + Check_Type(array_nl, T_STRING); + return state->array_nl = array_nl; +} + +/* + * call-seq: check_circular?(object) + * + * Returns true, if circular data structures should be checked, + * otherwise returns false. + */ +static VALUE cState_check_circular_p(VALUE self) +{ + GET_STATE(self); + return state->check_circular ? Qtrue : Qfalse; +} + +/* + * call-seq: seen?(object) + * + * Returns _true_, if _object_ was already seen during this generating run. + */ +static VALUE cState_seen_p(VALUE self, VALUE object) +{ + GET_STATE(self); + return rb_hash_aref(state->seen, rb_obj_id(object)); +} + +/* + * call-seq: remember(object) + * + * Remember _object_, to find out if it was already encountered (if a cyclic + * data structure is rendered). + */ +static VALUE cState_remember(VALUE self, VALUE object) +{ + GET_STATE(self); + return rb_hash_aset(state->seen, rb_obj_id(object), Qtrue); +} + +/* + * call-seq: forget(object) + * + * Forget _object_ for this generating run. + */ +static VALUE cState_forget(VALUE self, VALUE object) +{ + GET_STATE(self); + return rb_hash_delete(state->seen, rb_obj_id(object)); +} + +void Init_generator() +{ + mJSON = rb_define_module("JSON"); + mExt = rb_define_module_under(mJSON, "Ext"); + mGenerator = rb_define_module_under(mExt, "Generator"); + eGeneratorError = rb_path2class("JSON::GeneratorError"); + eCircularDatastructure = rb_path2class("JSON::CircularDatastructure"); + cState = rb_define_class_under(mGenerator, "State", rb_cObject); + rb_define_alloc_func(cState, cState_s_allocate); + rb_define_singleton_method(cState, "from_state", cState_from_state_s, 1); + rb_define_method(cState, "initialize", cState_initialize, -1); + + rb_define_method(cState, "indent", cState_indent, 0); + rb_define_method(cState, "indent=", cState_indent_set, 1); + rb_define_method(cState, "space", cState_space, 0); + rb_define_method(cState, "space=", cState_space_set, 1); + rb_define_method(cState, "space_before", cState_space_before, 0); + rb_define_method(cState, "space_before=", cState_space_before_set, 1); + rb_define_method(cState, "object_nl", cState_object_nl, 0); + rb_define_method(cState, "object_nl=", cState_object_nl_set, 1); + rb_define_method(cState, "array_nl", cState_array_nl, 0); + rb_define_method(cState, "array_nl=", cState_array_nl_set, 1); + rb_define_method(cState, "check_circular?", cState_check_circular_p, 0); + rb_define_method(cState, "seen?", cState_seen_p, 1); + rb_define_method(cState, "remember", cState_remember, 1); + rb_define_method(cState, "forget", cState_forget, 1); + mGeneratorMethods = rb_define_module_under(mGenerator, "GeneratorMethods"); + mObject = rb_define_module_under(mGeneratorMethods, "Object"); + rb_define_method(mObject, "to_json", mObject_to_json, -1); + mHash = rb_define_module_under(mGeneratorMethods, "Hash"); + rb_define_method(mHash, "to_json", mHash_to_json, -1); + mArray = rb_define_module_under(mGeneratorMethods, "Array"); + rb_define_method(mArray, "to_json", mArray_to_json, -1); + mInteger = rb_define_module_under(mGeneratorMethods, "Integer"); + rb_define_method(mInteger, "to_json", mInteger_to_json, -1); + mFloat = rb_define_module_under(mGeneratorMethods, "Float"); + rb_define_method(mFloat, "to_json", mFloat_to_json, -1); + mString = rb_define_module_under(mGeneratorMethods, "String"); + rb_define_singleton_method(mString, "included", mString_included_s, 1); + rb_define_method(mString, "to_json", mString_to_json, -1); + rb_define_method(mString, "to_json_raw", mString_to_json_raw, -1); + rb_define_method(mString, "to_json_raw_object", mString_to_json_raw_object, 0); + mString_Extend = rb_define_module_under(mString, "Extend"); + rb_define_method(mString_Extend, "json_create", mString_Extend_json_create, 1); + mTrueClass = rb_define_module_under(mGeneratorMethods, "TrueClass"); + rb_define_method(mTrueClass, "to_json", mTrueClass_to_json, -1); + mFalseClass = rb_define_module_under(mGeneratorMethods, "FalseClass"); + rb_define_method(mFalseClass, "to_json", mFalseClass_to_json, -1); + mNilClass = rb_define_module_under(mGeneratorMethods, "NilClass"); + rb_define_method(mNilClass, "to_json", mNilClass_to_json, -1); + + i_to_s = rb_intern("to_s"); + i_to_json = rb_intern("to_json"); + i_new = rb_intern("new"); + i_indent = rb_intern("indent"); + i_space = rb_intern("space"); + i_space_before = rb_intern("space_before"); + i_object_nl = rb_intern("object_nl"); + i_array_nl = rb_intern("array_nl"); + i_check_circular = rb_intern("check_circular"); + i_pack = rb_intern("pack"); + i_unpack = rb_intern("unpack"); + i_create_id = rb_intern("create_id"); + i_extend = rb_intern("extend"); +} -- cgit v1.2.3