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/* dump_object.c
* Copyright (c) 2012, 2017, Peter Ohler
* All rights reserved.
*/
#include "code.h"
#include "dump.h"
#include "rails.h"
#include "trace.h"
// Workaround in case INFINITY is not defined in math.h or if the OS is CentOS
#define OJ_INFINITY (1.0/0.0)
bool oj_use_hash_alt = false;
bool oj_use_array_alt = false;
static bool use_struct_alt = false;
static bool use_exception_alt = false;
static bool use_bignum_alt = false;
static void
raise_json_err(const char *msg, const char *err_classname) {
rb_raise(oj_get_json_err_class(err_classname), "%s", msg);
}
static void
dump_obj_classname(const char *classname, int depth, Out out) {
int d2 = depth + 1;
size_t len = strlen(classname);
size_t sep_len = out->opts->dump_opts.before_size + out->opts->dump_opts.after_size + 2;
size_t size = d2 * out->indent + 10 + len + out->opts->create_id_len + sep_len;
assure_size(out, size);
*out->cur++ = '{';
fill_indent(out, d2);
*out->cur++ = '"';
memcpy(out->cur, out->opts->create_id, out->opts->create_id_len);
out->cur += out->opts->create_id_len;
*out->cur++ = '"';
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
*out->cur++ = '"';
memcpy(out->cur, classname, len);
out->cur += len;
*out->cur++ = '"';
}
static void
dump_values_array(VALUE *values, int depth, Out out) {
size_t size;
int d2 = depth + 1;
assure_size(out, d2 * out->indent + 3);
*out->cur++ = '[';
if (Qundef == *values) {
*out->cur++ = ']';
} else {
if (out->opts->dump_opts.use) {
size = d2 * out->opts->dump_opts.indent_size + out->opts->dump_opts.array_size + 2;
} else {
size = d2 * out->indent + 3;
}
if (out->opts->dump_opts.use) {
size += out->opts->dump_opts.array_size;
size += out->opts->dump_opts.indent_size;
}
for (; Qundef != *values; values++) {
assure_size(out, size);
if (out->opts->dump_opts.use) {
if (0 < out->opts->dump_opts.array_size) {
strcpy(out->cur, out->opts->dump_opts.array_nl);
out->cur += out->opts->dump_opts.array_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = d2; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
} else {
fill_indent(out, d2);
}
oj_dump_compat_val(*values, d2, out, true);
if (Qundef != *(values + 1)) {
*out->cur++ = ',';
}
}
assure_size(out, size);
if (out->opts->dump_opts.use) {
if (0 < out->opts->dump_opts.array_size) {
strcpy(out->cur, out->opts->dump_opts.array_nl);
out->cur += out->opts->dump_opts.array_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = depth; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
} else {
fill_indent(out, depth);
}
*out->cur++ = ']';
}
}
static void
dump_to_json(VALUE obj, Out out) {
volatile VALUE rs;
const char *s;
int len;
if (Yes == out->opts->trace) {
oj_trace("to_json", obj, __FILE__, __LINE__, 0, TraceRubyIn);
}
if (0 == rb_obj_method_arity(obj, oj_to_json_id)) {
rs = rb_funcall(obj, oj_to_json_id, 0);
} else {
rs = rb_funcall2(obj, oj_to_json_id, out->argc, out->argv);
}
if (Yes == out->opts->trace) {
oj_trace("to_json", obj, __FILE__, __LINE__, 0, TraceRubyOut);
}
s = rb_string_value_ptr((VALUE*)&rs);
len = (int)RSTRING_LEN(rs);
assure_size(out, len + 1);
memcpy(out->cur, s, len);
out->cur += len;
*out->cur = '\0';
}
static void
dump_array(VALUE a, int depth, Out out, bool as_ok) {
size_t size;
int i, cnt;
int d2 = depth + 1;
long id = oj_check_circular(a, out);
if (0 > id) {
raise_json_err("Too deeply nested", "NestingError");
return;
}
if (as_ok && !oj_use_hash_alt && rb_obj_class(a) != rb_cArray && rb_respond_to(a, oj_to_json_id)) {
dump_to_json(a, out);
return;
}
cnt = (int)RARRAY_LEN(a);
*out->cur++ = '[';
assure_size(out, 2);
if (0 == cnt) {
*out->cur++ = ']';
} else {
if (out->opts->dump_opts.use) {
size = d2 * out->opts->dump_opts.indent_size + out->opts->dump_opts.array_size + 1;
} else {
size = d2 * out->indent + 2;
}
cnt--;
for (i = 0; i <= cnt; i++) {
assure_size(out, size);
if (out->opts->dump_opts.use) {
if (0 < out->opts->dump_opts.array_size) {
strcpy(out->cur, out->opts->dump_opts.array_nl);
out->cur += out->opts->dump_opts.array_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = d2; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
} else {
fill_indent(out, d2);
}
oj_dump_compat_val(rb_ary_entry(a, i), d2, out, true);
if (i < cnt) {
*out->cur++ = ',';
}
}
size = depth * out->indent + 1;
assure_size(out, size);
if (out->opts->dump_opts.use) {
if (0 < out->opts->dump_opts.array_size) {
strcpy(out->cur, out->opts->dump_opts.array_nl);
out->cur += out->opts->dump_opts.array_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = depth; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
} else {
fill_indent(out, depth);
}
*out->cur++ = ']';
}
*out->cur = '\0';
}
static ID _dump_id = 0;
static void
bigdecimal_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "b", 1, Qnil },
{ NULL, 0, Qnil },
};
if (0 == _dump_id) {
_dump_id = rb_intern("_dump");
}
attrs[0].value = rb_funcall(obj, _dump_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static ID real_id = 0;
static ID imag_id = 0;
static void
complex_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "r", 1, Qnil },
{ "i", 1, Qnil },
{ NULL, 0, Qnil },
};
if (0 == real_id) {
real_id = rb_intern("real");
imag_id = rb_intern("imag");
}
attrs[0].value = rb_funcall(obj, real_id, 0);
attrs[1].value = rb_funcall(obj, imag_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static ID year_id = 0;
static ID month_id = 0;
static ID day_id = 0;
static ID start_id = 0;
static void
date_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "y", 1, Qnil },
{ "m", 1, Qnil },
{ "d", 1, Qnil },
{ "sg", 2, Qnil },
{ NULL, 0, Qnil },
};
if (0 == year_id) {
year_id = rb_intern("year");
month_id = rb_intern("month");
day_id = rb_intern("day");
start_id = rb_intern("start");
}
attrs[0].value = rb_funcall(obj, year_id, 0);
attrs[1].value = rb_funcall(obj, month_id, 0);
attrs[2].value = rb_funcall(obj, day_id, 0);
attrs[3].value = rb_funcall(obj, start_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static ID hour_id = 0;
static ID min_id = 0;
static ID sec_id = 0;
static ID offset_id = 0;
static void
datetime_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "y", 1, Qnil },
{ "m", 1, Qnil },
{ "d", 1, Qnil },
{ "H", 1, Qnil },
{ "M", 1, Qnil },
{ "S", 1, Qnil },
{ "of", 2, Qnil },
{ "sg", 2, Qnil },
{ NULL, 0, Qnil },
};
if (0 == hour_id) {
year_id = rb_intern("year");
month_id = rb_intern("month");
day_id = rb_intern("day");
hour_id = rb_intern("hour");
min_id = rb_intern("min");
sec_id = rb_intern("sec");
offset_id = rb_intern("offset");
start_id = rb_intern("start");
}
attrs[0].value = rb_funcall(obj, year_id, 0);
attrs[1].value = rb_funcall(obj, month_id, 0);
attrs[2].value = rb_funcall(obj, day_id, 0);
attrs[3].value = rb_funcall(obj, hour_id, 0);
attrs[4].value = rb_funcall(obj, min_id, 0);
attrs[5].value = rb_funcall(obj, sec_id, 0);
attrs[6].value = rb_funcall(rb_funcall(obj, offset_id, 0), oj_to_s_id, 0);
attrs[7].value = rb_funcall(obj, start_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static ID message_id = 0;
static ID backtrace_id = 0;
static void
exception_alt(VALUE obj, int depth, Out out) {
int d3 = depth + 2;
size_t size = d3 * out->indent + 2;
size_t sep_len = out->opts->dump_opts.before_size + out->opts->dump_opts.after_size + 2;
if (0 == message_id) {
message_id = rb_intern("message");
backtrace_id = rb_intern("backtrace");
}
dump_obj_classname(rb_class2name(rb_obj_class(obj)), depth, out);
assure_size(out, size + sep_len + 6);
*out->cur++ = ',';
fill_indent(out, d3);
*out->cur++ = '"';
*out->cur++ = 'm';
*out->cur++ = '"';
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
oj_dump_str(rb_funcall(obj, message_id, 0), 0, out, false);
assure_size(out, size + sep_len + 6);
*out->cur++ = ',';
fill_indent(out, d3);
*out->cur++ = '"';
*out->cur++ = 'b';
*out->cur++ = '"';
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
dump_array(rb_funcall(obj, backtrace_id, 0), depth, out, false);
fill_indent(out, depth);
*out->cur++ = '}';
*out->cur = '\0';
}
static ID table_id = 0;
static void
openstruct_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "t", 1, Qnil },
{ NULL, 0, Qnil },
};
if (0 == table_id) {
table_id = rb_intern("table");
}
attrs[0].value = rb_funcall(obj, table_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static void
range_alt(VALUE obj, int depth, Out out) {
int d3 = depth + 2;
size_t size = d3 * out->indent + 2;
size_t sep_len = out->opts->dump_opts.before_size + out->opts->dump_opts.after_size + 2;
VALUE args[] = { Qundef, Qundef, Qundef, Qundef };
dump_obj_classname(rb_class2name(rb_obj_class(obj)), depth, out);
assure_size(out, size + sep_len + 6);
*out->cur++ = ',';
fill_indent(out, d3);
*out->cur++ = '"';
*out->cur++ = 'a';
*out->cur++ = '"';
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
args[0] = rb_funcall(obj, oj_begin_id, 0);
args[1] = rb_funcall(obj, oj_end_id, 0);
args[2] = rb_funcall(obj, oj_exclude_end_id, 0);
dump_values_array(args, depth, out);
fill_indent(out, depth);
*out->cur++ = '}';
*out->cur = '\0';
}
static ID numerator_id = 0;
static ID denominator_id = 0;
static void
rational_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "n", 1, Qnil },
{ "d", 1, Qnil },
{ NULL, 0, Qnil },
};
if (0 == numerator_id) {
numerator_id = rb_intern("numerator");
denominator_id = rb_intern("denominator");
}
attrs[0].value = rb_funcall(obj, numerator_id, 0);
attrs[1].value = rb_funcall(obj, denominator_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static ID options_id = 0;
static ID source_id = 0;
static void
regexp_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "o", 1, Qnil },
{ "s", 1, Qnil },
{ NULL, 0, Qnil },
};
if (0 == options_id) {
options_id = rb_intern("options");
source_id = rb_intern("source");
}
attrs[0].value = rb_funcall(obj, options_id, 0);
attrs[1].value = rb_funcall(obj, source_id, 0);
oj_code_attrs(obj, attrs, depth, out, true);
}
static void
time_alt(VALUE obj, int depth, Out out) {
struct _attr attrs[] = {
{ "s", 1, Qundef, 0, Qundef },
{ "n", 1, Qundef, 0, Qundef },
{ NULL, 0, Qnil },
};
time_t sec;
long long nsec;
#ifdef HAVE_RB_TIME_TIMESPEC
if (16 <= sizeof(struct timespec)) {
struct timespec ts = rb_time_timespec(obj);
sec = (long long)ts.tv_sec;
nsec = ts.tv_nsec;
} else {
sec = rb_num2ll(rb_funcall2(obj, oj_tv_sec_id, 0, 0));
nsec = rb_num2ll(rb_funcall2(obj, oj_tv_nsec_id, 0, 0));
}
#else
sec = rb_num2ll(rb_funcall2(obj, oj_tv_sec_id, 0, 0));
nsec = rb_num2ll(rb_funcall2(obj, oj_tv_nsec_id, 0, 0));
#endif
attrs[0].num = sec;
attrs[1].num = nsec;
oj_code_attrs(obj, attrs, depth, out, true);
}
struct _code oj_compat_codes[] = {
{ "BigDecimal", Qnil, bigdecimal_alt, NULL, false },
{ "Complex", Qnil, complex_alt, NULL, false },
{ "Date", Qnil, date_alt, false },
{ "DateTime", Qnil, datetime_alt, NULL, false },
{ "OpenStruct", Qnil, openstruct_alt, NULL, false },
{ "Range", Qnil, range_alt, NULL, false },
{ "Rational", Qnil, rational_alt, NULL, false },
{ "Regexp", Qnil, regexp_alt, NULL, false },
{ "Time", Qnil, time_alt, NULL, false },
// TBD the rest of the library classes
{ NULL, Qundef, NULL, NULL, false },
};
VALUE
oj_add_to_json(int argc, VALUE *argv, VALUE self) {
Code a;
if (0 == argc) {
for (a = oj_compat_codes; NULL != a->name; a++) {
if (Qnil == a->clas || Qundef == a->clas) {
a->clas = rb_const_get_at(rb_cObject, rb_intern(a->name));
}
a->active = true;
}
use_struct_alt = true;
use_exception_alt = true;
use_bignum_alt = true;
oj_use_hash_alt = true;
oj_use_array_alt = true;
} else {
for (; 0 < argc; argc--, argv++) {
if (rb_cStruct == *argv) {
use_struct_alt = true;
continue;
}
if (rb_eException == *argv) {
use_exception_alt = true;
continue;
}
if (rb_cInteger == *argv) {
use_bignum_alt = true;
continue;
}
if (rb_cHash == *argv) {
oj_use_hash_alt = true;
continue;
}
if (rb_cArray == *argv) {
oj_use_array_alt = true;
continue;
}
for (a = oj_compat_codes; NULL != a->name; a++) {
if (Qnil == a->clas || Qundef == a->clas) {
a->clas = rb_const_get_at(rb_cObject, rb_intern(a->name));
}
if (*argv == a->clas) {
a->active = true;
break;
}
}
}
}
return Qnil;
}
VALUE
oj_remove_to_json(int argc, VALUE *argv, VALUE self) {
if (0 == argc) {
oj_code_set_active(oj_compat_codes, Qnil, false);
use_struct_alt = false;
use_exception_alt = false;
use_bignum_alt = false;
oj_use_hash_alt = false;
oj_use_array_alt = false;
} else {
for (; 0 < argc; argc--, argv++) {
if (rb_cStruct == *argv) {
use_struct_alt = false;
continue;
}
if (rb_eException == *argv) {
use_exception_alt = false;
continue;
}
if (rb_cInteger == *argv) {
use_bignum_alt = false;
continue;
}
if (rb_cHash == *argv) {
oj_use_hash_alt = false;
continue;
}
if (rb_cArray == *argv) {
oj_use_array_alt = false;
continue;
}
oj_code_set_active(oj_compat_codes, *argv, false);
}
}
return Qnil;
}
// The JSON gem is inconsistent with handling of infinity. Using
// JSON.dump(0.1/0) returns the string Infinity but (0.1/0).to_json raise and
// exception. Worse, for BigDecimals a quoted "Infinity" is returned.
static void
dump_float(VALUE obj, int depth, Out out, bool as_ok) {
char buf[64];
char *b;
double d = rb_num2dbl(obj);
int cnt = 0;
if (0.0 == d) {
b = buf;
*b++ = '0';
*b++ = '.';
*b++ = '0';
*b++ = '\0';
cnt = 3;
} else if (OJ_INFINITY == d) {
if (WordNan == out->opts->dump_opts.nan_dump) {
strcpy(buf, "Infinity");
} else {
raise_json_err("Infinity not allowed in JSON.", "GeneratorError");
}
} else if (-OJ_INFINITY == d) {
if (WordNan == out->opts->dump_opts.nan_dump) {
strcpy(buf, "-Infinity");
} else {
raise_json_err("-Infinity not allowed in JSON.", "GeneratorError");
}
} else if (isnan(d)) {
if (WordNan == out->opts->dump_opts.nan_dump) {
strcpy(buf, "NaN");
} else {
raise_json_err("NaN not allowed in JSON.", "GeneratorError");
}
} else if (d == (double)(long long int)d) {
cnt = snprintf(buf, sizeof(buf), "%.1f", d);
} else if (oj_rails_float_opt) {
cnt = oj_dump_float_printf(buf, sizeof(buf), obj, d, "%0.16g");
} else {
volatile VALUE rstr = rb_funcall(obj, oj_to_s_id, 0);
strcpy(buf, rb_string_value_ptr((VALUE*)&rstr));
cnt = (int)RSTRING_LEN(rstr);
}
assure_size(out, cnt);
for (b = buf; '\0' != *b; b++) {
*out->cur++ = *b;
}
*out->cur = '\0';
}
static int
hash_cb(VALUE key, VALUE value, Out out) {
int depth = out->depth;
if (out->omit_nil && Qnil == value) {
return ST_CONTINUE;
}
if (!out->opts->dump_opts.use) {
assure_size(out, depth * out->indent + 1);
fill_indent(out, depth);
} else {
assure_size(out, depth * out->opts->dump_opts.indent_size + out->opts->dump_opts.hash_size + 1);
if (0 < out->opts->dump_opts.hash_size) {
strcpy(out->cur, out->opts->dump_opts.hash_nl);
out->cur += out->opts->dump_opts.hash_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = depth; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
}
switch (rb_type(key)) {
case T_STRING:
oj_dump_str(key, 0, out, false);
break;
case T_SYMBOL:
oj_dump_sym(key, 0, out, false);
break;
default:
/*rb_raise(rb_eTypeError, "In :compat mode all Hash keys must be Strings or Symbols, not %s.\n", rb_class2name(rb_obj_class(key)));*/
oj_dump_str(rb_funcall(key, oj_to_s_id, 0), 0, out, false);
break;
}
if (!out->opts->dump_opts.use) {
*out->cur++ = ':';
} else {
assure_size(out, out->opts->dump_opts.before_size + out->opts->dump_opts.after_size + 2);
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
}
oj_dump_compat_val(value, depth, out, true);
out->depth = depth;
*out->cur++ = ',';
return ST_CONTINUE;
}
static void
dump_hash(VALUE obj, int depth, Out out, bool as_ok) {
int cnt;
long id = oj_check_circular(obj, out);
if (0 > id) {
raise_json_err("Too deeply nested", "NestingError");
return;
}
if (as_ok && !oj_use_hash_alt && rb_obj_class(obj) != rb_cHash && rb_respond_to(obj, oj_to_json_id)) {
dump_to_json(obj, out);
return;
}
cnt = (int)RHASH_SIZE(obj);
assure_size(out, 2);
if (0 == cnt) {
*out->cur++ = '{';
*out->cur++ = '}';
} else {
*out->cur++ = '{';
out->depth = depth + 1;
rb_hash_foreach(obj, hash_cb, (VALUE)out);
if (',' == *(out->cur - 1)) {
out->cur--; // backup to overwrite last comma
}
if (!out->opts->dump_opts.use) {
assure_size(out, depth * out->indent + 2);
fill_indent(out, depth);
} else {
assure_size(out, depth * out->opts->dump_opts.indent_size + out->opts->dump_opts.hash_size + 1);
if (0 < out->opts->dump_opts.hash_size) {
strcpy(out->cur, out->opts->dump_opts.hash_nl);
out->cur += out->opts->dump_opts.hash_size;
}
if (0 < out->opts->dump_opts.indent_size) {
int i;
for (i = depth; 0 < i; i--) {
strcpy(out->cur, out->opts->dump_opts.indent_str);
out->cur += out->opts->dump_opts.indent_size;
}
}
}
*out->cur++ = '}';
}
*out->cur = '\0';
}
// In compat mode only the first call check for to_json. After that to_s is
// called.
static void
dump_obj(VALUE obj, int depth, Out out, bool as_ok) {
if (oj_code_dump(oj_compat_codes, obj, depth, out)) {
return;
}
if (use_exception_alt && rb_obj_is_kind_of(obj, rb_eException)) {
exception_alt(obj, depth, out);
return;
}
if (as_ok && rb_respond_to(obj, oj_to_json_id)) {
dump_to_json(obj, out);
return;
}
// Nothing else matched so encode as a JSON object with Ruby obj members
// as JSON object members.
oj_dump_obj_to_s(obj, out);
}
static void
dump_struct(VALUE obj, int depth, Out out, bool as_ok) {
VALUE clas = rb_obj_class(obj);
if (oj_code_dump(oj_compat_codes, obj, depth, out)) {
return;
}
if (rb_cRange == clas) {
*out->cur++ = '"';
oj_dump_compat_val(rb_funcall(obj, oj_begin_id, 0), 0, out, false);
assure_size(out, 3);
*out->cur++ = '.';
*out->cur++ = '.';
if (Qtrue == rb_funcall(obj, oj_exclude_end_id, 0)) {
*out->cur++ = '.';
}
oj_dump_compat_val(rb_funcall(obj, oj_end_id, 0), 0, out, false);
*out->cur++ = '"';
return;
}
if (as_ok && rb_respond_to(obj, oj_to_json_id)) {
dump_to_json(obj, out);
return;
}
if (use_struct_alt) {
int d3 = depth + 2;
size_t size = d3 * out->indent + 2;
size_t sep_len = out->opts->dump_opts.before_size + out->opts->dump_opts.after_size + 2;
const char *classname = rb_class2name(rb_obj_class(obj));
VALUE args[100];
int cnt;
int i;
if (NULL == classname || '#' == *classname) {
raise_json_err("Only named structs are supported.", "JSONError");
}
#ifdef RSTRUCT_LEN
#if RSTRUCT_LEN_RETURNS_INTEGER_OBJECT
cnt = (int)NUM2LONG(RSTRUCT_LEN(obj));
#else // RSTRUCT_LEN_RETURNS_INTEGER_OBJECT
cnt = (int)RSTRUCT_LEN(obj);
#endif // RSTRUCT_LEN_RETURNS_INTEGER_OBJECT
#else
// This is a bit risky as a struct in C ruby is not the same as a Struct
// class in interpreted Ruby so length() may not be defined.
cnt = FIX2INT(rb_funcall2(obj, oj_length_id, 0, 0));
#endif
if (sizeof(args) / sizeof(*args) <= (size_t)cnt) {
// TBD allocate and try again
cnt = 99;
}
dump_obj_classname(rb_class2name(rb_obj_class(obj)), depth, out);
assure_size(out, size + sep_len + 6);
*out->cur++ = ',';
fill_indent(out, d3);
*out->cur++ = '"';
*out->cur++ = 'v';
*out->cur++ = '"';
if (0 < out->opts->dump_opts.before_size) {
strcpy(out->cur, out->opts->dump_opts.before_sep);
out->cur += out->opts->dump_opts.before_size;
}
*out->cur++ = ':';
if (0 < out->opts->dump_opts.after_size) {
strcpy(out->cur, out->opts->dump_opts.after_sep);
out->cur += out->opts->dump_opts.after_size;
}
for (i = 0; i < cnt; i++) {
#ifdef RSTRUCT_LEN
args[i] = RSTRUCT_GET(obj, i);
#else
args[i] = rb_struct_aref(obj, INT2FIX(i));
#endif
}
args[cnt] = Qundef;
dump_values_array(args, depth, out);
fill_indent(out, depth);
*out->cur++ = '}';
*out->cur = '\0';
} else {
oj_dump_obj_to_s(obj, out);
}
}
static void
dump_bignum(VALUE obj, int depth, Out out, bool as_ok) {
// The json gem uses to_s explicitly. to_s can be overridden while
// rb_big2str can not so unless overridden by using add_to_json(Integer)
// this must use to_s to pass the json gem unit tests.
volatile VALUE rs;
int cnt;
bool dump_as_string = false;
if (use_bignum_alt) {
rs = rb_big2str(obj, 10);
} else {
rs = rb_funcall(obj, oj_to_s_id, 0);
}
rb_check_type(rs, T_STRING);
cnt = (int)RSTRING_LEN(rs);
if (out->opts->integer_range_min != 0 || out->opts->integer_range_max != 0) {
dump_as_string = true; // Bignum cannot be inside of Fixnum range
assure_size(out, cnt + 2);
*out->cur++ = '"';
} else {
assure_size(out, cnt);
}
memcpy(out->cur, rb_string_value_ptr((VALUE*)&rs), cnt);
out->cur += cnt;
if(dump_as_string) {
*out->cur++ = '"';
}
*out->cur = '\0';
}
static DumpFunc compat_funcs[] = {
NULL, // RUBY_T_NONE = 0x00,
dump_obj, // RUBY_T_OBJECT = 0x01,
oj_dump_class, // RUBY_T_CLASS = 0x02,
oj_dump_class, // RUBY_T_MODULE = 0x03,
dump_float, // RUBY_T_FLOAT = 0x04,
oj_dump_str, // RUBY_T_STRING = 0x05,
dump_obj, // RUBY_T_REGEXP = 0x06,
dump_array, // RUBY_T_ARRAY = 0x07,
dump_hash, // RUBY_T_HASH = 0x08,
dump_struct, // RUBY_T_STRUCT = 0x09,
dump_bignum, // RUBY_T_BIGNUM = 0x0a,
NULL, // RUBY_T_FILE = 0x0b,
dump_obj, // RUBY_T_DATA = 0x0c,
NULL, // RUBY_T_MATCH = 0x0d,
dump_obj, // RUBY_T_COMPLEX = 0x0e,
dump_obj, // RUBY_T_RATIONAL = 0x0f,
NULL, // 0x10
oj_dump_nil, // RUBY_T_NIL = 0x11,
oj_dump_true, // RUBY_T_TRUE = 0x12,
oj_dump_false, // RUBY_T_FALSE = 0x13,
oj_dump_sym, // RUBY_T_SYMBOL = 0x14,
oj_dump_fixnum, // RUBY_T_FIXNUM = 0x15,
};
static void
set_state_depth(VALUE state, int depth) {
VALUE json_module = rb_const_get_at(rb_cObject, rb_intern("JSON"));
VALUE ext = rb_const_get(json_module, rb_intern("Ext"));
VALUE generator = rb_const_get(ext, rb_intern("Generator"));
VALUE state_class = rb_const_get(generator, rb_intern("State"));
if (state_class == rb_obj_class(state)) {
rb_funcall(state, rb_intern("depth="), 1, INT2NUM(depth));
}
}
void
oj_dump_compat_val(VALUE obj, int depth, Out out, bool as_ok) {
int type = rb_type(obj);
if (Yes == out->opts->trace) {
oj_trace("dump", obj, __FILE__, __LINE__, depth, TraceIn);
}
if (out->opts->dump_opts.max_depth <= depth) {
// When JSON.dump is called then an ArgumentError is expected and the
// limit is the depth inclusive. If JSON.generate is called then a
// NestingError is expected and the limit is inclusive. Worse than
// that there are unit tests for both.
if (CALLER_DUMP == out->caller) {
if (0 < out->argc) {
set_state_depth(*out->argv, depth);
}
rb_raise(rb_eArgError, "Too deeply nested.");
} else if (out->opts->dump_opts.max_depth < depth) {
if (0 < out->argc) {
set_state_depth(*out->argv, depth - 1);
}
raise_json_err("Too deeply nested", "NestingError");
}
}
if (0 < type && type <= RUBY_T_FIXNUM) {
DumpFunc f = compat_funcs[type];
if (NULL != f) {
f(obj, depth, out, as_ok);
if (Yes == out->opts->trace) {
oj_trace("dump", obj, __FILE__, __LINE__, depth, TraceOut);
}
return;
}
}
oj_dump_nil(Qnil, depth, out, false);
if (Yes == out->opts->trace) {
oj_trace("dump", Qnil, __FILE__, __LINE__, depth, TraceOut);
}
}
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