#include "ruby/ruby.h"
#include "ruby/st.h"
#include "ruby/encoding.h"
#include "internal.h"
#include "vm_core.h"
#include <stdio.h>
#include <stdarg.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef WIFEXITED
#define WIFEXITED(status) 1
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(status) (status)
#endif
extern const char ruby_description[];
#define REPORTBUG_MSG \
"[NOTE]\n" \
"You may have encountered a bug in the Ruby interpreter" \
" or extension libraries.\n" \
"Bug reports are welcome.\n" \
"For details: http://www.ruby-lang.org/bugreport.html\n\n" \
static const char *
rb_strerrno(int err)
{
#define defined_error(name, num) if (err == (num)) return (name);
#define undefined_error(name)
#include "known_errors.inc"
#undef defined_error
#undef undefined_error
return NULL;
}
static int
err_position_0(char *buf, long len, const char *file, int line)
{
if (!file) {
return 0;
}
else if (line == 0) {
return snprintf(buf, len, "%s: ", file);
}
else {
return snprintf(buf, len, "%s:%d: ", file, line);
}
}
static VALUE
compile_snprintf(rb_encoding *enc, const char *pre, const char *file, int line, const char *fmt, va_list args)
{
VALUE str = rb_enc_str_new(0, 0, enc);
if (file) {
rb_str_cat2(str, file);
if (line) rb_str_catf(str, ":%d", line);
rb_str_cat2(str, ": ");
}
if (pre) rb_str_cat2(str, pre);
rb_str_vcatf(str, fmt, args);
return str;
}
static void
compile_err_append(VALUE mesg)
{
rb_thread_t *th = GET_THREAD();
VALUE err = th->errinfo;
rb_block_t *prev_base_block = th->base_block;
th->base_block = 0;
if (th->mild_compile_error) {
if (RTEST(err)) {
VALUE str = rb_obj_as_string(err);
rb_str_cat2(str, "\n");
rb_str_append(str, mesg);
mesg = str;
}
err = rb_exc_new3(rb_eSyntaxError, mesg);
th->errinfo = err;
}
else {
if (!RTEST(err)) {
err = rb_exc_new2(rb_eSyntaxError, "compile error");
th->errinfo = err;
}
rb_str_cat2(mesg, "\n");
rb_write_error_str(mesg);
}
th->base_block = prev_base_block;
}
void
rb_compile_error_with_enc(const char *file, int line, void *enc, const char *fmt, ...)
{
va_list args;
VALUE str;
va_start(args, fmt);
str = compile_snprintf(enc, NULL, file, line, fmt, args);
va_end(args);
compile_err_append(str);
}
void
rb_compile_error(const char *file, int line, const char *fmt, ...)
{
va_list args;
VALUE str;
va_start(args, fmt);
str = compile_snprintf(NULL, NULL, file, line, fmt, args);
va_end(args);
compile_err_append(str);
}
void
rb_compile_error_append(const char *fmt, ...)
{
va_list args;
VALUE str;
va_start(args, fmt);
str = rb_vsprintf(fmt, args);
va_end(args);
compile_err_append(str);
}
static void
compile_warn_print(const char *file, int line, const char *fmt, va_list args)
{
VALUE str;
str = compile_snprintf(NULL, "warning: ", file, line, fmt, args);
rb_str_cat2(str, "\n");
rb_write_error_str(str);
}
void
rb_compile_warn(const char *file, int line, const char *fmt, ...)
{
va_list args;
if (NIL_P(ruby_verbose)) return;
va_start(args, fmt);
compile_warn_print(file, line, fmt, args);
va_end(args);
}
void
rb_compile_warning(const char *file, int line, const char *fmt, ...)
{
va_list args;
if (!RTEST(ruby_verbose)) return;
va_start(args, fmt);
compile_warn_print(file, line, fmt, args);
va_end(args);
}
static void
warn_print(const char *fmt, va_list args)
{
VALUE str = rb_str_new(0, 0);
VALUE file = rb_sourcefilename();
if (!NIL_P(file)) {
int line = rb_sourceline();
str = rb_str_append(str, file);
if (line) rb_str_catf(str, ":%d", line);
rb_str_cat2(str, ": ");
}
rb_str_cat2(str, "warning: ");
rb_str_vcatf(str, fmt, args);
rb_str_cat2(str, "\n");
rb_write_error_str(str);
}
void
rb_warn(const char *fmt, ...)
{
va_list args;
if (NIL_P(ruby_verbose)) return;
va_start(args, fmt);
warn_print(fmt, args);
va_end(args);
}
void
rb_warning(const char *fmt, ...)
{
va_list args;
if (!RTEST(ruby_verbose)) return;
va_start(args, fmt);
warn_print(fmt, args);
va_end(args);
}
static VALUE
rb_warn_m(int argc, VALUE *argv, VALUE exc)
{
if (!NIL_P(ruby_verbose) && argc > 0) {
rb_io_puts(argc, argv, rb_stderr);
}
return Qnil;
}
static void
report_bug(const char *file, int line, const char *fmt, va_list args)
{
char buf[256];
FILE *out = stderr;
int len = err_position_0(buf, 256, file, line);
if ((ssize_t)fwrite(buf, 1, len, out) == (ssize_t)len ||
(ssize_t)fwrite(buf, 1, len, (out = stdout)) == (ssize_t)len) {
fputs("[BUG] ", out);
vsnprintf(buf, 256, fmt, args);
fputs(buf, out);
snprintf(buf, 256, "\n%s\n\n", ruby_description);
fputs(buf, out);
rb_vm_bugreport();
fprintf(out, REPORTBUG_MSG);
}
}
void
rb_bug(const char *fmt, ...)
{
va_list args;
const char *file = NULL;
int line = 0;
if (GET_THREAD()) {
file = rb_sourcefile();
line = rb_sourceline();
}
va_start(args, fmt);
report_bug(file, line, fmt, args);
va_end(args);
#if defined(_WIN32) && defined(RUBY_MSVCRT_VERSION) && RUBY_MSVCRT_VERSION >= 80
_set_abort_behavior( 0, _CALL_REPORTFAULT);
#endif
abort();
}
void
rb_bug_errno(const char *mesg, int errno_arg)
{
if (errno_arg == 0)
rb_bug("%s: errno == 0 (NOERROR)", mesg);
else {
const char *errno_str = rb_strerrno(errno_arg);
if (errno_str)
rb_bug("%s: %s (%s)", mesg, strerror(errno_arg), errno_str);
else
rb_bug("%s: %s (%d)", mesg, strerror(errno_arg), errno_arg);
}
}
#define write_or_abort(fd, str, len) (write((fd), (str), (len)) < 0 ? abort() : (void)0)
#define WRITE_CONST(fd,str) write_or_abort((fd),(str),sizeof(str) - 1)
void
rb_async_bug_errno(const char *mesg, int errno_arg)
{
WRITE_CONST(2, "[ASYNC BUG] ");
write_or_abort(2, mesg, strlen(mesg));
WRITE_CONST(2, "\n");
if (errno_arg == 0) {
WRITE_CONST(2, "errno == 0 (NOERROR)\n");
}
else {
const char *errno_str = rb_strerrno(errno_arg);
if (!errno_str)
errno_str = "undefined errno";
write_or_abort(2, errno_str, strlen(errno_str));
}
WRITE_CONST(2, "\n\n");
write_or_abort(2, ruby_description, strlen(ruby_description));
WRITE_CONST(2, "\n\n");
WRITE_CONST(2, REPORTBUG_MSG);
abort();
}
void
rb_compile_bug(const char *file, int line, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
report_bug(file, line, fmt, args);
va_end(args);
abort();
}
static const char builtin_types[][10] = {
"",
"Object",
"Class",
"Module",
"Float",
"String",
"Regexp",
"Array",
"Hash",
"Struct",
"Bignum",
"File",
"Data",
"MatchData",
"Complex",
"Rational",
"",
"nil",
"true",
"false",
"Symbol",
"Fixnum",
"",
"",
"",
"",
"",
"undef",
"Node",
"iClass",
};
const char *
rb_builtin_type_name(int t)
{
const char *name;
if ((unsigned int)t >= numberof(builtin_types)) return 0;
name = builtin_types[t];
if (*name) return name;
return 0;
}
#define builtin_class_name rb_builtin_class_name
const char *
rb_builtin_class_name(VALUE x)
{
const char *etype;
if (NIL_P(x)) {
etype = "nil";
}
else if (FIXNUM_P(x)) {
etype = "Fixnum";
}
else if (SYMBOL_P(x)) {
etype = "Symbol";
}
else if (RB_TYPE_P(x, T_TRUE)) {
etype = "true";
}
else if (RB_TYPE_P(x, T_FALSE)) {
etype = "false";
}
else {
etype = rb_obj_classname(x);
}
return etype;
}
void
rb_check_type(VALUE x, int t)
{
int xt;
if (x == Qundef) {
rb_bug("undef leaked to the Ruby space");
}
xt = TYPE(x);
if (xt != t || (xt == T_DATA && RTYPEDDATA_P(x))) {
const char *tname = rb_builtin_type_name(t);
if (tname) {
rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)",
builtin_class_name(x), tname);
}
if (xt > T_MASK && xt <= 0x3f) {
rb_fatal("unknown type 0x%x (0x%x given, probably comes from extension library for ruby 1.8)", t, xt);
}
rb_bug("unknown type 0x%x (0x%x given)", t, xt);
}
}
int
rb_typeddata_inherited_p(const rb_data_type_t *child, const rb_data_type_t *parent)
{
while (child) {
if (child == parent) return 1;
child = child->parent;
}
return 0;
}
int
rb_typeddata_is_kind_of(VALUE obj, const rb_data_type_t *data_type)
{
if (!RB_TYPE_P(obj, T_DATA) ||
!RTYPEDDATA_P(obj) || !rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) {
return 0;
}
return 1;
}
void *
rb_check_typeddata(VALUE obj, const rb_data_type_t *data_type)
{
const char *etype;
static const char mesg[] = "wrong argument type %s (expected %s)";
if (!RB_TYPE_P(obj, T_DATA)) {
etype = builtin_class_name(obj);
rb_raise(rb_eTypeError, mesg, etype, data_type->wrap_struct_name);
}
if (!RTYPEDDATA_P(obj)) {
etype = rb_obj_classname(obj);
rb_raise(rb_eTypeError, mesg, etype, data_type->wrap_struct_name);
}
else if (!rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) {
etype = RTYPEDDATA_TYPE(obj)->wrap_struct_name;
rb_raise(rb_eTypeError, mesg, etype, data_type->wrap_struct_name);
}
return DATA_PTR(obj);
}
VALUE rb_eException;
VALUE rb_eSystemExit;
VALUE rb_eInterrupt;
VALUE rb_eSignal;
VALUE rb_eFatal;
VALUE rb_eStandardError;
VALUE rb_eRuntimeError;
VALUE rb_eTypeError;
VALUE rb_eArgError;
VALUE rb_eIndexError;
VALUE rb_eKeyError;
VALUE rb_eRangeError;
VALUE rb_eNameError;
VALUE rb_eEncodingError;
VALUE rb_eEncCompatError;
VALUE rb_eNoMethodError;
VALUE rb_eSecurityError;
VALUE rb_eNotImpError;
VALUE rb_eNoMemError;
VALUE rb_cNameErrorMesg;
VALUE rb_eScriptError;
VALUE rb_eSyntaxError;
VALUE rb_eLoadError;
VALUE rb_eSystemCallError;
VALUE rb_mErrno;
static VALUE rb_eNOERROR;
#undef rb_exc_new2
VALUE
rb_exc_new(VALUE etype, const char *ptr, long len)
{
return rb_funcall(etype, rb_intern("new"), 1, rb_str_new(ptr, len));
}
VALUE
rb_exc_new2(VALUE etype, const char *s)
{
return rb_exc_new(etype, s, strlen(s));
}
VALUE
rb_exc_new3(VALUE etype, VALUE str)
{
StringValue(str);
return rb_funcall(etype, rb_intern("new"), 1, str);
}
static VALUE
exc_initialize(int argc, VALUE *argv, VALUE exc)
{
VALUE arg;
rb_scan_args(argc, argv, "01", &arg);
rb_iv_set(exc, "mesg", arg);
rb_iv_set(exc, "bt", Qnil);
return exc;
}
static VALUE
exc_exception(int argc, VALUE *argv, VALUE self)
{
VALUE exc;
if (argc == 0) return self;
if (argc == 1 && self == argv[0]) return self;
exc = rb_obj_clone(self);
exc_initialize(argc, argv, exc);
return exc;
}
static VALUE
exc_to_s(VALUE exc)
{
VALUE mesg = rb_attr_get(exc, rb_intern("mesg"));
VALUE r = Qnil;
if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc));
r = rb_String(mesg);
return r;
}
static VALUE
exc_message(VALUE exc)
{
return rb_funcall(exc, rb_intern("to_s"), 0, 0);
}
static VALUE
exc_inspect(VALUE exc)
{
VALUE str, klass;
klass = CLASS_OF(exc);
exc = rb_obj_as_string(exc);
if (RSTRING_LEN(exc) == 0) {
return rb_str_dup(rb_class_name(klass));
}
str = rb_str_buf_new2("#<");
klass = rb_class_name(klass);
rb_str_buf_append(str, klass);
rb_str_buf_cat(str, ": ", 2);
rb_str_buf_append(str, exc);
rb_str_buf_cat(str, ">", 1);
return str;
}
static VALUE
exc_backtrace(VALUE exc)
{
ID bt;
VALUE obj;
CONST_ID(bt, "bt");
obj = rb_attr_get(exc, bt);
if (rb_backtrace_p(obj)) {
obj = rb_backtrace_to_str_ary(obj);
}
return obj;
}
VALUE
rb_check_backtrace(VALUE bt)
{
long i;
static const char err[] = "backtrace must be Array of String";
if (!NIL_P(bt)) {
if (RB_TYPE_P(bt, T_STRING)) return rb_ary_new3(1, bt);
if (rb_backtrace_p(bt)) return bt;
if (!RB_TYPE_P(bt, T_ARRAY)) {
rb_raise(rb_eTypeError, err);
}
for (i=0;i<RARRAY_LEN(bt);i++) {
if (!RB_TYPE_P(RARRAY_PTR(bt)[i], T_STRING)) {
rb_raise(rb_eTypeError, err);
}
}
}
return bt;
}
static VALUE
exc_set_backtrace(VALUE exc, VALUE bt)
{
return rb_iv_set(exc, "bt", rb_check_backtrace(bt));
}
VALUE
rb_exc_set_backtrace(VALUE exc, VALUE bt)
{
return exc_set_backtrace(exc, bt);
}
static VALUE
try_convert_to_exception(VALUE obj)
{
ID id_exception;
CONST_ID(id_exception, "exception");
return rb_check_funcall(obj, id_exception, 0, 0);
}
static VALUE
exc_equal(VALUE exc, VALUE obj)
{
VALUE mesg, backtrace;
ID id_mesg;
if (exc == obj) return Qtrue;
CONST_ID(id_mesg, "mesg");
if (rb_obj_class(exc) != rb_obj_class(obj)) {
int status = 0;
ID id_message, id_backtrace;
CONST_ID(id_message, "message");
CONST_ID(id_backtrace, "backtrace");
obj = rb_protect(try_convert_to_exception, obj, &status);
if (status || obj == Qundef) {
rb_set_errinfo(Qnil);
return Qfalse;
}
if (rb_obj_class(exc) != rb_obj_class(obj)) return Qfalse;
mesg = rb_check_funcall(obj, id_message, 0, 0);
if (mesg == Qundef) return Qfalse;
backtrace = rb_check_funcall(obj, id_backtrace, 0, 0);
if (backtrace == Qundef) return Qfalse;
}
else {
mesg = rb_attr_get(obj, id_mesg);
backtrace = exc_backtrace(obj);
}
if (!rb_equal(rb_attr_get(exc, id_mesg), mesg))
return Qfalse;
if (!rb_equal(exc_backtrace(exc), backtrace))
return Qfalse;
return Qtrue;
}
static VALUE
exit_initialize(int argc, VALUE *argv, VALUE exc)
{
VALUE status;
if (argc > 0) {
status = *argv;
switch (status) {
case Qtrue:
status = INT2FIX(EXIT_SUCCESS);
++argv;
--argc;
break;
case Qfalse:
status = INT2FIX(EXIT_FAILURE);
++argv;
--argc;
break;
default:
status = rb_check_to_int(status);
if (NIL_P(status)) {
status = INT2FIX(EXIT_SUCCESS);
}
else {
#if EXIT_SUCCESS != 0
if (status == INT2FIX(0))
status = INT2FIX(EXIT_SUCCESS);
#endif
++argv;
--argc;
}
break;
}
}
else {
status = INT2FIX(EXIT_SUCCESS);
}
rb_call_super(argc, argv);
rb_iv_set(exc, "status", status);
return exc;
}
static VALUE
exit_status(VALUE exc)
{
return rb_attr_get(exc, rb_intern("status"));
}
static VALUE
exit_success_p(VALUE exc)
{
VALUE status_val = rb_attr_get(exc, rb_intern("status"));
int status;
if (NIL_P(status_val))
return Qtrue;
status = NUM2INT(status_val);
if (WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS)
return Qtrue;
return Qfalse;
}
void
rb_name_error(ID id, const char *fmt, ...)
{
VALUE exc, argv[2];
va_list args;
va_start(args, fmt);
argv[0] = rb_vsprintf(fmt, args);
va_end(args);
argv[1] = ID2SYM(id);
exc = rb_class_new_instance(2, argv, rb_eNameError);
rb_exc_raise(exc);
}
void
rb_name_error_str(VALUE str, const char *fmt, ...)
{
VALUE exc, argv[2];
va_list args;
va_start(args, fmt);
argv[0] = rb_vsprintf(fmt, args);
va_end(args);
argv[1] = str;
exc = rb_class_new_instance(2, argv, rb_eNameError);
rb_exc_raise(exc);
}
static VALUE
name_err_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE name;
name = (argc > 1) ? argv[--argc] : Qnil;
rb_call_super(argc, argv);
rb_iv_set(self, "name", name);
return self;
}
static VALUE
name_err_name(VALUE self)
{
return rb_attr_get(self, rb_intern("name"));
}
static VALUE
name_err_to_s(VALUE exc)
{
VALUE mesg = rb_attr_get(exc, rb_intern("mesg"));
VALUE str = mesg;
if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc));
StringValue(str);
return str;
}
static VALUE
nometh_err_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE args = (argc > 2) ? argv[--argc] : Qnil;
name_err_initialize(argc, argv, self);
rb_iv_set(self, "args", args);
return self;
}
#define NAME_ERR_MESG_COUNT 3
static void
name_err_mesg_mark(void *p)
{
VALUE *ptr = p;
rb_gc_mark_locations(ptr, ptr+NAME_ERR_MESG_COUNT);
}
#define name_err_mesg_free RUBY_TYPED_DEFAULT_FREE
static size_t
name_err_mesg_memsize(const void *p)
{
return p ? (NAME_ERR_MESG_COUNT * sizeof(VALUE)) : 0;
}
static const rb_data_type_t name_err_mesg_data_type = {
"name_err_mesg",
{
name_err_mesg_mark,
name_err_mesg_free,
name_err_mesg_memsize,
},
};
VALUE
rb_name_err_mesg_new(VALUE obj, VALUE mesg, VALUE recv, VALUE method)
{
VALUE *ptr = ALLOC_N(VALUE, NAME_ERR_MESG_COUNT);
VALUE result;
ptr[0] = mesg;
ptr[1] = recv;
ptr[2] = method;
result = TypedData_Wrap_Struct(rb_cNameErrorMesg, &name_err_mesg_data_type, ptr);
RB_GC_GUARD(mesg);
RB_GC_GUARD(recv);
RB_GC_GUARD(method);
return result;
}
static VALUE
name_err_mesg_equal(VALUE obj1, VALUE obj2)
{
VALUE *ptr1, *ptr2;
int i;
if (obj1 == obj2) return Qtrue;
if (rb_obj_class(obj2) != rb_cNameErrorMesg)
return Qfalse;
TypedData_Get_Struct(obj1, VALUE, &name_err_mesg_data_type, ptr1);
TypedData_Get_Struct(obj2, VALUE, &name_err_mesg_data_type, ptr2);
for (i=0; i<NAME_ERR_MESG_COUNT; i++) {
if (!rb_equal(ptr1[i], ptr2[i]))
return Qfalse;
}
return Qtrue;
}
static VALUE
name_err_mesg_to_str(VALUE obj)
{
VALUE *ptr, mesg;
TypedData_Get_Struct(obj, VALUE, &name_err_mesg_data_type, ptr);
mesg = ptr[0];
if (NIL_P(mesg)) return Qnil;
else {
const char *desc = 0;
VALUE d = 0, args[NAME_ERR_MESG_COUNT];
int state = 0;
obj = ptr[1];
switch (obj) {
case Qnil:
desc = "nil";
break;
case Qtrue:
desc = "true";
break;
case Qfalse:
desc = "false";
break;
default:
d = rb_protect(rb_inspect, obj, &state);
if (state)
rb_set_errinfo(Qnil);
if (NIL_P(d) || RSTRING_LEN(d) > 65) {
d = rb_any_to_s(obj);
}
desc = RSTRING_PTR(d);
break;
}
if (desc && desc[0] != '#') {
d = d ? rb_str_dup(d) : rb_str_new2(desc);
rb_str_cat2(d, ":");
rb_str_append(d, rb_class_name(CLASS_OF(obj)));
}
args[0] = mesg;
args[1] = ptr[2];
args[2] = d;
mesg = rb_f_sprintf(NAME_ERR_MESG_COUNT, args);
}
return mesg;
}
static VALUE
name_err_mesg_dump(VALUE obj, VALUE limit)
{
return name_err_mesg_to_str(obj);
}
static VALUE
name_err_mesg_load(VALUE klass, VALUE str)
{
return str;
}
static VALUE
nometh_err_args(VALUE self)
{
return rb_attr_get(self, rb_intern("args"));
}
void
rb_invalid_str(const char *str, const char *type)
{
VALUE s = rb_str_new2(str);
rb_raise(rb_eArgError, "invalid value for %s: %+"PRIsVALUE, type, s);
}
static st_table *syserr_tbl;
static VALUE
set_syserr(int n, const char *name)
{
st_data_t error;
if (!st_lookup(syserr_tbl, n, &error)) {
error = rb_define_class_under(rb_mErrno, name, rb_eSystemCallError);
rb_define_const(error, "Errno", INT2NUM(n));
st_add_direct(syserr_tbl, n, error);
}
else {
rb_define_const(rb_mErrno, name, error);
}
return error;
}
static VALUE
get_syserr(int n)
{
st_data_t error;
if (!st_lookup(syserr_tbl, n, &error)) {
char name[8];
snprintf(name, sizeof(name), "E%03d", n);
error = set_syserr(n, name);
}
return error;
}
static VALUE
syserr_initialize(int argc, VALUE *argv, VALUE self)
{
#if !defined(_WIN32)
char *strerror();
#endif
const char *err;
VALUE mesg, error;
VALUE klass = rb_obj_class(self);
if (klass == rb_eSystemCallError) {
st_data_t data = (st_data_t)klass;
rb_scan_args(argc, argv, "11", &mesg, &error);
if (argc == 1 && FIXNUM_P(mesg)) {
error = mesg; mesg = Qnil;
}
if (!NIL_P(error) && st_lookup(syserr_tbl, NUM2LONG(error), &data)) {
klass = (VALUE)data;
if (!RB_TYPE_P(self, T_OBJECT)) {
rb_raise(rb_eTypeError, "invalid instance type");
}
RBASIC(self)->klass = klass;
}
}
else {
rb_scan_args(argc, argv, "01", &mesg);
error = rb_const_get(klass, rb_intern("Errno"));
}
if (!NIL_P(error)) err = strerror(NUM2INT(error));
else err = "unknown error";
if (!NIL_P(mesg)) {
rb_encoding *le = rb_locale_encoding();
VALUE str = StringValue(mesg);
rb_encoding *me = rb_enc_get(mesg);
mesg = rb_sprintf("%s - %"PRIsVALUE, err, mesg);
if (le != me && rb_enc_asciicompat(me)) {
le = me;
}
OBJ_INFECT(mesg, str);
rb_enc_associate(mesg, le);
}
else {
mesg = rb_str_new2(err);
rb_enc_associate(mesg, rb_locale_encoding());
}
rb_call_super(1, &mesg);
rb_iv_set(self, "errno", error);
return self;
}
static VALUE
syserr_errno(VALUE self)
{
return rb_attr_get(self, rb_intern("errno"));
}
static VALUE
syserr_eqq(VALUE self, VALUE exc)
{
VALUE num, e;
ID en;
CONST_ID(en, "errno");
if (!rb_obj_is_kind_of(exc, rb_eSystemCallError)) {
if (!rb_respond_to(exc, en)) return Qfalse;
}
else if (self == rb_eSystemCallError) return Qtrue;
num = rb_attr_get(exc, rb_intern("errno"));
if (NIL_P(num)) {
num = rb_funcall(exc, en, 0, 0);
}
e = rb_const_get(self, rb_intern("Errno"));
if (FIXNUM_P(num) ? num == e : rb_equal(num, e))
return Qtrue;
return Qfalse;
}
void
Init_Exception(void)
{
rb_eException = rb_define_class("Exception", rb_cObject);
rb_define_singleton_method(rb_eException, "exception", rb_class_new_instance, -1);
rb_define_method(rb_eException, "exception", exc_exception, -1);
rb_define_method(rb_eException, "initialize", exc_initialize, -1);
rb_define_method(rb_eException, "==", exc_equal, 1);
rb_define_method(rb_eException, "to_s", exc_to_s, 0);
rb_define_method(rb_eException, "message", exc_message, 0);
rb_define_method(rb_eException, "inspect", exc_inspect, 0);
rb_define_method(rb_eException, "backtrace", exc_backtrace, 0);
rb_define_method(rb_eException, "set_backtrace", exc_set_backtrace, 1);
rb_eSystemExit = rb_define_class("SystemExit", rb_eException);
rb_define_method(rb_eSystemExit, "initialize", exit_initialize, -1);
rb_define_method(rb_eSystemExit, "status", exit_status, 0);
rb_define_method(rb_eSystemExit, "success?", exit_success_p, 0);
rb_eFatal = rb_define_class("fatal", rb_eException);
rb_eSignal = rb_define_class("SignalException", rb_eException);
rb_eInterrupt = rb_define_class("Interrupt", rb_eSignal);
rb_eStandardError = rb_define_class("StandardError", rb_eException);
rb_eTypeError = rb_define_class("TypeError", rb_eStandardError);
rb_eArgError = rb_define_class("ArgumentError", rb_eStandardError);
rb_eIndexError = rb_define_class("IndexError", rb_eStandardError);
rb_eKeyError = rb_define_class("KeyError", rb_eIndexError);
rb_eRangeError = rb_define_class("RangeError", rb_eStandardError);
rb_eScriptError = rb_define_class("ScriptError", rb_eException);
rb_eSyntaxError = rb_define_class("SyntaxError", rb_eScriptError);
rb_eLoadError = rb_define_class("LoadError", rb_eScriptError);
rb_attr(rb_eLoadError, rb_intern("path"), 1, 0, Qfalse);
rb_eNotImpError = rb_define_class("NotImplementedError", rb_eScriptError);
rb_eNameError = rb_define_class("NameError", rb_eStandardError);
rb_define_method(rb_eNameError, "initialize", name_err_initialize, -1);
rb_define_method(rb_eNameError, "name", name_err_name, 0);
rb_define_method(rb_eNameError, "to_s", name_err_to_s, 0);
rb_cNameErrorMesg = rb_define_class_under(rb_eNameError, "message", rb_cData);
rb_define_singleton_method(rb_cNameErrorMesg, "!", rb_name_err_mesg_new, NAME_ERR_MESG_COUNT);
rb_define_method(rb_cNameErrorMesg, "==", name_err_mesg_equal, 1);
rb_define_method(rb_cNameErrorMesg, "to_str", name_err_mesg_to_str, 0);
rb_define_method(rb_cNameErrorMesg, "_dump", name_err_mesg_dump, 1);
rb_define_singleton_method(rb_cNameErrorMesg, "_load", name_err_mesg_load, 1);
rb_eNoMethodError = rb_define_class("NoMethodError", rb_eNameError);
rb_define_method(rb_eNoMethodError, "initialize", nometh_err_initialize, -1);
rb_define_method(rb_eNoMethodError, "args", nometh_err_args, 0);
rb_eRuntimeError = rb_define_class("RuntimeError", rb_eStandardError);
rb_eSecurityError = rb_define_class("SecurityError", rb_eException);
rb_eNoMemError = rb_define_class("NoMemoryError", rb_eException);
rb_eEncodingError = rb_define_class("EncodingError", rb_eStandardError);
rb_eEncCompatError = rb_define_class_under(rb_cEncoding, "CompatibilityError", rb_eEncodingError);
syserr_tbl = st_init_numtable();
rb_eSystemCallError = rb_define_class("SystemCallError", rb_eStandardError);
rb_define_method(rb_eSystemCallError, "initialize", syserr_initialize, -1);
rb_define_method(rb_eSystemCallError, "errno", syserr_errno, 0);
rb_define_singleton_method(rb_eSystemCallError, "===", syserr_eqq, 1);
rb_mErrno = rb_define_module("Errno");
rb_define_global_function("warn", rb_warn_m, -1);
}
void
rb_enc_raise(rb_encoding *enc, VALUE exc, const char *fmt, ...)
{
va_list args;
VALUE mesg;
va_start(args, fmt);
mesg = rb_enc_vsprintf(enc, fmt, args);
va_end(args);
rb_exc_raise(rb_exc_new3(exc, mesg));
}
void
rb_raise(VALUE exc, const char *fmt, ...)
{
va_list args;
VALUE mesg;
va_start(args, fmt);
mesg = rb_vsprintf(fmt, args);
va_end(args);
rb_exc_raise(rb_exc_new3(exc, mesg));
}
NORETURN(static void raise_loaderror(VALUE path, VALUE mesg));
static void
raise_loaderror(VALUE path, VALUE mesg)
{
VALUE err = rb_exc_new3(rb_eLoadError, mesg);
rb_ivar_set(err, rb_intern("@path"), path);
rb_exc_raise(err);
}
void
rb_loaderror(const char *fmt, ...)
{
va_list args;
VALUE mesg;
va_start(args, fmt);
mesg = rb_enc_vsprintf(rb_locale_encoding(), fmt, args);
va_end(args);
raise_loaderror(Qnil, mesg);
}
void
rb_loaderror_with_path(VALUE path, const char *fmt, ...)
{
va_list args;
VALUE mesg;
va_start(args, fmt);
mesg = rb_enc_vsprintf(rb_locale_encoding(), fmt, args);
va_end(args);
raise_loaderror(path, mesg);
}
void
rb_notimplement(void)
{
rb_raise(rb_eNotImpError,
"%s() function is unimplemented on this machine",
rb_id2name(rb_frame_this_func()));
}
void
rb_fatal(const char *fmt, ...)
{
va_list args;
VALUE mesg;
va_start(args, fmt);
mesg = rb_vsprintf(fmt, args);
va_end(args);
rb_exc_fatal(rb_exc_new3(rb_eFatal, mesg));
}
static VALUE
make_errno_exc(const char *mesg)
{
int n = errno;
errno = 0;
if (n == 0) {
rb_bug("rb_sys_fail(%s) - errno == 0", mesg ? mesg : "");
}
return rb_syserr_new(n, mesg);
}
static VALUE
make_errno_exc_str(VALUE mesg)
{
int n = errno;
errno = 0;
if (!mesg) mesg = Qnil;
if (n == 0) {
const char *s = !NIL_P(mesg) ? RSTRING_PTR(mesg) : "";
rb_bug("rb_sys_fail_str(%s) - errno == 0", s);
}
return rb_syserr_new_str(n, mesg);
}
VALUE
rb_syserr_new(int n, const char *mesg)
{
VALUE arg;
arg = mesg ? rb_str_new2(mesg) : Qnil;
return rb_syserr_new_str(n, arg);
}
VALUE
rb_syserr_new_str(int n, VALUE arg)
{
return rb_class_new_instance(1, &arg, get_syserr(n));
}
void
rb_syserr_fail(int e, const char *mesg)
{
rb_exc_raise(rb_syserr_new(e, mesg));
}
void
rb_syserr_fail_str(int e, VALUE mesg)
{
rb_exc_raise(rb_syserr_new_str(e, mesg));
}
void
rb_sys_fail(const char *mesg)
{
rb_exc_raise(make_errno_exc(mesg));
}
void
rb_sys_fail_str(VALUE mesg)
{
rb_exc_raise(make_errno_exc_str(mesg));
}
void
rb_mod_sys_fail(VALUE mod, const char *mesg)
{
VALUE exc = make_errno_exc(mesg);
rb_extend_object(exc, mod);
rb_exc_raise(exc);
}
void
rb_mod_sys_fail_str(VALUE mod, VALUE mesg)
{
VALUE exc = make_errno_exc_str(mesg);
rb_extend_object(exc, mod);
rb_exc_raise(exc);
}
void
rb_mod_syserr_fail(VALUE mod, int e, const char *mesg)
{
VALUE exc = rb_syserr_new(e, mesg);
rb_extend_object(exc, mod);
rb_exc_raise(exc);
}
void
rb_mod_syserr_fail_str(VALUE mod, int e, VALUE mesg)
{
VALUE exc = rb_syserr_new_str(e, mesg);
rb_extend_object(exc, mod);
rb_exc_raise(exc);
}
void
rb_sys_warning(const char *fmt, ...)
{
char buf[BUFSIZ];
va_list args;
int errno_save;
errno_save = errno;
if (!RTEST(ruby_verbose)) return;
snprintf(buf, BUFSIZ, "warning: %s", fmt);
snprintf(buf+strlen(buf), BUFSIZ-strlen(buf), ": %s", strerror(errno_save));
va_start(args, fmt);
warn_print(buf, args);
va_end(args);
errno = errno_save;
}
void
rb_load_fail(VALUE path, const char *err)
{
VALUE mesg = rb_str_buf_new_cstr(err);
rb_str_cat2(mesg, " -- ");
rb_str_append(mesg, path);
raise_loaderror(path, mesg);
}
void
rb_error_frozen(const char *what)
{
rb_raise(rb_eRuntimeError, "can't modify frozen %s", what);
}
#undef rb_check_frozen
void
rb_check_frozen(VALUE obj)
{
rb_check_frozen_internal(obj);
}
void
rb_error_untrusted(VALUE obj)
{
if (rb_safe_level() >= 4) {
rb_raise(rb_eSecurityError, "Insecure: can't modify %s",
rb_obj_classname(obj));
}
}
#undef rb_check_trusted
void
rb_check_trusted(VALUE obj)
{
rb_check_trusted_internal(obj);
}
void
rb_check_copyable(VALUE obj, VALUE orig)
{
if (!FL_ABLE(obj)) return;
rb_check_frozen_internal(obj);
rb_check_trusted_internal(obj);
if (!FL_ABLE(orig)) return;
if ((~RBASIC(obj)->flags & RBASIC(orig)->flags) & (FL_UNTRUSTED|FL_TAINT)) {
if (rb_safe_level() > 0) {
rb_raise(rb_eSecurityError, "Insecure: can't modify %"PRIsVALUE,
RBASIC(obj)->klass);
}
}
}
void
Init_syserr(void)
{
rb_eNOERROR = set_syserr(0, "NOERROR");
#define defined_error(name, num) set_syserr((num), (name));
#define undefined_error(name) set_syserr(0, (name));
#include "known_errors.inc"
#undef defined_error
#undef undefined_error
}