Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

2065 lines (1799 sloc) 47.374 kb
/**********************************************************************
error.c -
$Author$
created at: Mon Aug 9 16:11:34 JST 1993
Copyright (C) 1993-2007 Yukihiro Matsumoto
**********************************************************************/
#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
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef WIFEXITED
#define WIFEXITED(status) 1
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(status) (status)
#endif
VALUE rb_eEAGAIN;
VALUE rb_eEWOULDBLOCK;
VALUE rb_eEINPROGRESS;
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;
/* base_block should be zero while normal Ruby execution */
/* after this line, any Ruby code *can* run */
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);
}
/* returned to the parser world */
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);
}
/* rb_compile_warning() reports only in verbose mode */
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);
}
/* rb_warning() reports only in verbose mode */
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);
}
/*
* call-seq:
* warn(msg, ...) -> nil
*
* Displays each of the given messages followed by a record separator on
* STDERR unless warnings have been disabled (for example with the
* <code>-W0</code> flag).
*
* warn("warning 1", "warning 2")
*
* <em>produces:</em>
*
* warning 1
* warning 2
*/
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)
{
/* SIGSEGV handler might have a very small stack. Thus we need to use it carefully. */
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);
}
}
/*
* this is safe to call inside signal handler and timer thread
* (which isn't a Ruby Thread object)
*/
#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] = {
"", /* 0x00, */
"Object",
"Class",
"Module",
"Float",
"String",
"Regexp",
"Array",
"Hash",
"Struct",
"Bignum",
"File",
"Data", /* internal use: wrapped C pointers */
"MatchData", /* data of $~ */
"Complex",
"Rational",
"", /* 0x10 */
"nil",
"true",
"false",
"Symbol", /* :symbol */
"Fixnum",
"", /* 0x16 */
"", /* 0x17 */
"", /* 0x18 */
"", /* 0x19 */
"", /* 0x1a */
"undef", /* internal use: #undef; should not happen */
"Node", /* internal use: syntax tree node */
"iClass", /* internal use: mixed-in module holder */
};
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);
}
/* exception classes */
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_new_cstr
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_new_cstr(VALUE etype, const char *s)
{
return rb_exc_new(etype, s, strlen(s));
}
VALUE
rb_exc_new_str(VALUE etype, VALUE str)
{
StringValue(str);
return rb_funcall(etype, rb_intern("new"), 1, str);
}
/*
* call-seq:
* Exception.new(msg = nil) -> exception
*
* Construct a new Exception object, optionally passing in
* a message.
*/
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;
}
/*
* Document-method: exception
*
* call-seq:
* exc.exception(string) -> an_exception or exc
*
* With no argument, or if the argument is the same as the receiver,
* return the receiver. Otherwise, create a new
* exception object of the same class as the receiver, but with a
* message equal to <code>string.to_str</code>.
*
*/
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;
}
/*
* call-seq:
* exception.to_s -> string
*
* Returns exception's message (or the name of the exception if
* no message is set).
*/
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;
}
/*
* call-seq:
* exception.message -> string
*
* Returns the result of invoking <code>exception.to_s</code>.
* Normally this returns the exception's message or name. By
* supplying a to_str method, exceptions are agreeing to
* be used where Strings are expected.
*/
static VALUE
exc_message(VALUE exc)
{
return rb_funcall(exc, rb_intern("to_s"), 0, 0);
}
/*
* call-seq:
* exception.inspect -> string
*
* Return this exception's class name and message
*/
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;
}
/*
* call-seq:
* exception.backtrace -> array
*
* Returns any backtrace associated with the exception. The backtrace
* is an array of strings, each containing either ``filename:lineNo: in
* `method''' or ``filename:lineNo.''
*
* def a
* raise "boom"
* end
*
* def b
* a()
* end
*
* begin
* b()
* rescue => detail
* print detail.backtrace.join("\n")
* end
*
* <em>produces:</em>
*
* prog.rb:2:in `a'
* prog.rb:6:in `b'
* prog.rb:10
*/
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);
/* rb_iv_set(exc, "bt", 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++) {
VALUE e = RARRAY_AREF(bt, i);
if (!RB_TYPE_P(e, T_STRING)) {
rb_raise(rb_eTypeError, err);
}
}
}
return bt;
}
/*
* call-seq:
* exc.set_backtrace(backtrace) -> array
*
* Sets the backtrace information associated with +exc+. The +backtrace+ must
* be an array of String objects or a single String in the format described
* in Exception#backtrace.
*
*/
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);
}
/*
* call-seq:
* exc == obj -> true or false
*
* Equality---If <i>obj</i> is not an <code>Exception</code>, returns
* <code>false</code>. Otherwise, returns <code>true</code> if <i>exc</i> and
* <i>obj</i> share same class, messages, and backtrace.
*/
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;
}
/*
* call-seq:
* SystemExit.new -> system_exit
* SystemExit.new(status) -> system_exit
* SystemExit.new(status, msg) -> system_exit
* SystemExit.new(msg) -> system_exit
*
* Create a new +SystemExit+ exception with the given status and message.
* Status is true, false, or an integer.
* If status is not given, true is used.
*/
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;
}
/*
* call-seq:
* system_exit.status -> fixnum
*
* Return the status value associated with this system exit.
*/
static VALUE
exit_status(VALUE exc)
{
return rb_attr_get(exc, rb_intern("status"));
}
/*
* call-seq:
* system_exit.success? -> true or false
*
* Returns +true+ if exiting successful, +false+ if not.
*/
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);
}
/*
* call-seq:
* NameError.new(msg [, name]) -> name_error
*
* Construct a new NameError exception. If given the <i>name</i>
* parameter may subsequently be examined using the <code>NameError.name</code>
* method.
*/
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;
}
/*
* call-seq:
* name_error.name -> string or nil
*
* Return the name associated with this NameError exception.
*/
static VALUE
name_err_name(VALUE self)
{
return rb_attr_get(self, rb_intern("name"));
}
/*
* call-seq:
* name_error.to_s -> string
*
* Produce a nicely-formatted string representing the +NameError+.
*/
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;
}
/*
* call-seq:
* NoMethodError.new(msg, name [, args]) -> no_method_error
*
* Construct a NoMethodError exception for a method of the given name
* called with the given arguments. The name may be accessed using
* the <code>#name</code> method on the resulting object, and the
* arguments using the <code>#args</code> method.
*/
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;
}
/* :nodoc: */
#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,
},
};
/* :nodoc: */
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;
}
/* :nodoc: */
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;
}
/* :nodoc: */
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;
}
/* :nodoc: */
static VALUE
name_err_mesg_dump(VALUE obj, VALUE limit)
{
return name_err_mesg_to_str(obj);
}
/* :nodoc: */
static VALUE
name_err_mesg_load(VALUE klass, VALUE str)
{
return str;
}
/*
* call-seq:
* no_method_error.args -> obj
*
* Return the arguments passed in as the third parameter to
* the constructor.
*/
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);
}
/*
* Document-module: Errno
*
* Ruby exception objects are subclasses of <code>Exception</code>.
* However, operating systems typically report errors using plain
* integers. Module <code>Errno</code> is created dynamically to map
* these operating system errors to Ruby classes, with each error
* number generating its own subclass of <code>SystemCallError</code>.
* As the subclass is created in module <code>Errno</code>, its name
* will start <code>Errno::</code>.
*
* The names of the <code>Errno::</code> classes depend on
* the environment in which Ruby runs. On a typical Unix or Windows
* platform, there are <code>Errno</code> classes such as
* <code>Errno::EACCES</code>, <code>Errno::EAGAIN</code>,
* <code>Errno::EINTR</code>, and so on.
*
* The integer operating system error number corresponding to a
* particular error is available as the class constant
* <code>Errno::</code><em>error</em><code>::Errno</code>.
*
* Errno::EACCES::Errno #=> 13
* Errno::EAGAIN::Errno #=> 11
* Errno::EINTR::Errno #=> 4
*
* The full list of operating system errors on your particular platform
* are available as the constants of <code>Errno</code>.
*
* Errno.constants #=> :E2BIG, :EACCES, :EADDRINUSE, :EADDRNOTAVAIL, ...
*/
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);
/* capture nonblock errnos for WaitReadable/WaitWritable subclasses */
switch (n) {
case EAGAIN:
rb_eEAGAIN = error;
#if EAGAIN != EWOULDBLOCK
break;
case EWOULDBLOCK:
#endif
rb_eEWOULDBLOCK = error;
break;
case EINPROGRESS:
rb_eEINPROGRESS = error;
break;
}
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]; /* some Windows' errno have 5 digits. */
snprintf(name, sizeof(name), "E%03d", n);
error = set_syserr(n, name);
}
return error;
}
/*
* call-seq:
* SystemCallError.new(msg, errno) -> system_call_error_subclass
*
* If _errno_ corresponds to a known system error code, constructs
* the appropriate <code>Errno</code> class for that error, otherwise
* constructs a generic <code>SystemCallError</code> object. The
* error number is subsequently available via the <code>errno</code>
* method.
*/
static VALUE
syserr_initialize(int argc, VALUE *argv, VALUE self)
{
#if !defined(_WIN32)
char *strerror();
#endif
const char *err;
VALUE mesg, error, func;
VALUE klass = rb_obj_class(self);
if (klass == rb_eSystemCallError) {
st_data_t data = (st_data_t)klass;
rb_scan_args(argc, argv, "12", &mesg, &error, &func);
if (argc == 1 && FIXNUM_P(mesg)) {
error = mesg; mesg = Qnil;
}
if (!NIL_P(error) && st_lookup(syserr_tbl, NUM2LONG(error), &data)) {
klass = (VALUE)data;
/* change class */
if (!RB_TYPE_P(self, T_OBJECT)) { /* insurance to avoid type crash */
rb_raise(rb_eTypeError, "invalid instance type");
}
RBASIC_SET_CLASS(self, klass);
}
}
else {
rb_scan_args(argc, argv, "02", &mesg, &func);
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);
if (NIL_P(func))
mesg = rb_sprintf("%s - %"PRIsVALUE, err, mesg);
else
mesg = rb_sprintf("%s @ %"PRIsVALUE" - %"PRIsVALUE, err, func, mesg);
if (le != me && rb_enc_asciicompat(me)) {
le = me;
}/* else assume err is non ASCII string. */
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;
}
/*
* call-seq:
* system_call_error.errno -> fixnum
*
* Return this SystemCallError's error number.
*/
static VALUE
syserr_errno(VALUE self)
{
return rb_attr_get(self, rb_intern("errno"));
}
/*
* call-seq:
* system_call_error === other -> true or false
*
* Return +true+ if the receiver is a generic +SystemCallError+, or
* if the error numbers +self+ and _other_ are the same.
*/
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;
}
/*
* Document-class: StandardError
*
* The most standard error types are subclasses of StandardError. A
* rescue clause without an explicit Exception class will rescue all
* StandardErrors (and only those).
*
* def foo
* raise "Oups"
* end
* foo rescue "Hello" #=> "Hello"
*
* On the other hand:
*
* require 'does/not/exist' rescue "Hi"
*
* <em>raises the exception:</em>
*
* LoadError: no such file to load -- does/not/exist
*
*/
/*
* Document-class: SystemExit
*
* Raised by +exit+ to initiate the termination of the script.
*/
/*
* Document-class: SignalException
*
* Raised when a signal is received.
*
* begin
* Process.kill('HUP',Process.pid)
* sleep # wait for receiver to handle signal sent by Process.kill
* rescue SignalException => e
* puts "received Exception #{e}"
* end
*
* <em>produces:</em>
*
* received Exception SIGHUP
*/
/*
* Document-class: Interrupt
*
* Raised with the interrupt signal is received, typically because the
* user pressed on Control-C (on most posix platforms). As such, it is a
* subclass of +SignalException+.
*
* begin
* puts "Press ctrl-C when you get bored"
* loop {}
* rescue Interrupt => e
* puts "Note: You will typically use Signal.trap instead."
* end
*
* <em>produces:</em>
*
* Press ctrl-C when you get bored
*
* <em>then waits until it is interrupted with Control-C and then prints:</em>
*
* Note: You will typically use Signal.trap instead.
*/
/*
* Document-class: TypeError
*
* Raised when encountering an object that is not of the expected type.
*
* [1, 2, 3].first("two")
*
* <em>raises the exception:</em>
*
* TypeError: no implicit conversion of String into Integer
*
*/
/*
* Document-class: ArgumentError
*
* Raised when the arguments are wrong and there isn't a more specific
* Exception class.
*
* Ex: passing the wrong number of arguments
*
* [1, 2, 3].first(4, 5)
*
* <em>raises the exception:</em>
*
* ArgumentError: wrong number of arguments (2 for 1)
*
* Ex: passing an argument that is not acceptable:
*
* [1, 2, 3].first(-4)
*
* <em>raises the exception:</em>
*
* ArgumentError: negative array size
*/
/*
* Document-class: IndexError
*
* Raised when the given index is invalid.
*
* a = [:foo, :bar]
* a.fetch(0) #=> :foo
* a[4] #=> nil
* a.fetch(4) #=> IndexError: index 4 outside of array bounds: -2...2
*
*/
/*
* Document-class: KeyError
*
* Raised when the specified key is not found. It is a subclass of
* IndexError.
*
* h = {"foo" => :bar}
* h.fetch("foo") #=> :bar
* h.fetch("baz") #=> KeyError: key not found: "baz"
*
*/
/*
* Document-class: RangeError
*
* Raised when a given numerical value is out of range.
*
* [1, 2, 3].drop(1 << 100)
*
* <em>raises the exception:</em>
*
* RangeError: bignum too big to convert into `long'
*/
/*
* Document-class: ScriptError
*
* ScriptError is the superclass for errors raised when a script
* can not be executed because of a +LoadError+,
* +NotImplementedError+ or a +SyntaxError+. Note these type of
* +ScriptErrors+ are not +StandardError+ and will not be
* rescued unless it is specified explicitly (or its ancestor
* +Exception+).
*/
/*
* Document-class: SyntaxError
*
* Raised when encountering Ruby code with an invalid syntax.
*
* eval("1+1=2")
*
* <em>raises the exception:</em>
*
* SyntaxError: (eval):1: syntax error, unexpected '=', expecting $end
*/
/*
* Document-class: LoadError
*
* Raised when a file required (a Ruby script, extension library, ...)
* fails to load.
*
* require 'this/file/does/not/exist'
*
* <em>raises the exception:</em>
*
* LoadError: no such file to load -- this/file/does/not/exist
*/
/*
* Document-class: NotImplementedError
*
* Raised when a feature is not implemented on the current platform. For
* example, methods depending on the +fsync+ or +fork+ system calls may
* raise this exception if the underlying operating system or Ruby
* runtime does not support them.
*
* Note that if +fork+ raises a +NotImplementedError+, then
* <code>respond_to?(:fork)</code> returns +false+.
*/
/*
* Document-class: NameError
*
* Raised when a given name is invalid or undefined.
*
* puts foo
*
* <em>raises the exception:</em>
*
* NameError: undefined local variable or method `foo' for main:Object
*
* Since constant names must start with a capital:
*
* Fixnum.const_set :answer, 42
*
* <em>raises the exception:</em>
*
* NameError: wrong constant name answer
*/
/*
* Document-class: NoMethodError
*
* Raised when a method is called on a receiver which doesn't have it
* defined and also fails to respond with +method_missing+.
*
* "hello".to_ary
*
* <em>raises the exception:</em>
*
* NoMethodError: undefined method `to_ary' for "hello":String
*/
/*
* Document-class: RuntimeError
*
* A generic error class raised when an invalid operation is attempted.
*
* [1, 2, 3].freeze << 4
*
* <em>raises the exception:</em>
*
* RuntimeError: can't modify frozen array
*
* Kernel.raise will raise a RuntimeError if no Exception class is
* specified.
*
* raise "ouch"
*
* <em>raises the exception:</em>
*
* RuntimeError: ouch
*/
/*
* Document-class: SecurityError
*
* Raised when attempting a potential unsafe operation, typically when
* the $SAFE level is raised above 0.
*
* foo = "bar"
* proc = Proc.new do
* $SAFE = 3
* foo.untaint
* end
* proc.call
*
* <em>raises the exception:</em>
*
* SecurityError: Insecure: Insecure operation `untaint' at level 3
*/
/*
* Document-class: NoMemoryError
*
* Raised when memory allocation fails.
*/
/*
* Document-class: SystemCallError
*
* SystemCallError is the base class for all low-level
* platform-dependent errors.
*
* The errors available on the current platform are subclasses of
* SystemCallError and are defined in the Errno module.
*
* File.open("does/not/exist")
*
* <em>raises the exception:</em>
*
* Errno::ENOENT: No such file or directory - does/not/exist
*/
/*
* Document-class: EncodingError
*
* EncodingError is the base class for encoding errors.
*/
/*
* Document-class: Encoding::CompatibilityError
*
* Raised by Encoding and String methods when the source encoding is
* incompatible with the target encoding.
*/
/*
* Document-class: fatal
*
* fatal is an Exception that is raised when ruby has encountered a fatal
* error and must exit. You are not able to rescue fatal.
*/
/*
* Document-class: NameError::message
* :nodoc:
*/
/*
* Descendants of class Exception are used to communicate between
* Kernel#raise and +rescue+ statements in <code>begin ... end</code> blocks.
* Exception objects carry information about the exception -- its type (the
* exception's class name), an optional descriptive string, and optional
* traceback information. Exception subclasses may add additional
* information like NameError#name.
*
* Programs may make subclasses of Exception, typically of StandardError or
* RuntimeError, to provide custom classes and add additional information.
* See the subclass list below for defaults for +raise+ and +rescue+.
*
* When an exception has been raised but not yet handled (in +rescue+,
* +ensure+, +at_exit+ and +END+ blocks) the global variable <code>$!</code>
* will contain the current exception and <code>$@</code> contains the
* current exception's backtrace.
*
* It is recommended that a library should have one subclass of StandardError
* or RuntimeError and have specific exception types inherit from it. This
* allows the user to rescue a generic exception type to catch all exceptions
* the library may raise even if future versions of the library add new
* exception subclasses.
*
* For example:
*
* class MyLibrary
* class Error < RuntimeError
* end
*
* class WidgetError < Error
* end
*
* class FrobError < Error
* end
*
* end
*
* To handle both WidgetError and FrobError the library user can rescue
* MyLibrary::Error.
*
* The built-in subclasses of Exception are:
*
* * NoMemoryError
* * ScriptError
* * LoadError
* * NotImplementedError
* * SyntaxError
* * SignalException
* * Interrupt
* * StandardError -- default for +rescue+
* * ArgumentError
* * IndexError
* * StopIteration
* * IOError
* * EOFError
* * LocalJumpError
* * NameError
* * NoMethodError
* * RangeError
* * FloatDomainError
* * RegexpError
* * RuntimeError -- default for +raise+
* * SecurityError
* * SystemCallError
* * Errno::*
* * SystemStackError
* * ThreadError
* * TypeError
* * ZeroDivisionError
* * SystemExit
* * fatal -- impossible to rescue
*/
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);
/* the path failed to load */
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));
}
#ifdef RUBY_FUNCTION_NAME_STRING
void
rb_sys_fail_path_in(const char *func_name, VALUE path)
{
int n = errno;
VALUE args[2];
errno = 0;
if (!path) path = Qnil;
if (n == 0) {
const char *s = !NIL_P(path) ? RSTRING_PTR(path) : "";
if (!func_name) func_name = "(null)";
rb_bug("rb_sys_fail_path_in(%s, %s) - errno == 0",
func_name, s);
}
args[0] = path;
args[1] = rb_str_new_cstr(func_name);
rb_exc_raise(rb_class_new_instance(2, args, get_syserr(n)));
}
#endif
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); /* should be ASCII compatible */
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)
{
}
#undef rb_check_trusted
void
rb_check_trusted(VALUE obj)
{
}
void
rb_check_copyable(VALUE obj, VALUE orig)
{
if (!FL_ABLE(obj)) return;
rb_check_frozen_internal(obj);
if (!FL_ABLE(orig)) return;
if ((~RBASIC(obj)->flags & RBASIC(orig)->flags) & 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
}
Jump to Line
Something went wrong with that request. Please try again.