/error.c
C | 1991 lines | 1146 code | 253 blank | 592 comment | 166 complexity | 7e8b2df119db5b5966a91d562ce7b73f MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, AGPL-3.0, 0BSD, Unlicense
- /**********************************************************************
- 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
- 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 int
- err_position(char *buf, long len)
- {
- return err_position_0(buf, len, rb_sourcefile(), rb_sourceline());
- }
- static void
- err_snprintf(char *buf, long len, const char *fmt, va_list args)
- {
- long n;
- n = err_position(buf, len);
- if (len > n) {
- vsnprintf((char*)buf+n, len-n, fmt, args);
- }
- }
- static void
- compile_snprintf(char *buf, long len, const char *file, int line, const char *fmt, va_list args)
- {
- long n;
- n = err_position_0(buf, len, file, line);
- if (len > n) {
- vsnprintf((char*)buf+n, len-n, fmt, args);
- }
- }
- static void err_append(const char*, rb_encoding *);
- void
- rb_compile_error_with_enc(const char *file, int line, void *enc, const char *fmt, ...)
- {
- va_list args;
- char buf[BUFSIZ];
- va_start(args, fmt);
- compile_snprintf(buf, BUFSIZ, file, line, fmt, args);
- va_end(args);
- err_append(buf, (rb_encoding *)enc);
- }
- void
- rb_compile_error(const char *file, int line, const char *fmt, ...)
- {
- va_list args;
- char buf[BUFSIZ];
- va_start(args, fmt);
- compile_snprintf(buf, BUFSIZ, file, line, fmt, args);
- va_end(args);
- err_append(buf, NULL);
- }
- void
- rb_compile_error_append(const char *fmt, ...)
- {
- va_list args;
- char buf[BUFSIZ];
- va_start(args, fmt);
- vsnprintf(buf, BUFSIZ, fmt, args);
- va_end(args);
- err_append(buf, NULL);
- }
- static void
- compile_warn_print(const char *file, int line, const char *fmt, va_list args)
- {
- char buf[BUFSIZ];
- int len;
- compile_snprintf(buf, BUFSIZ, file, line, fmt, args);
- len = (int)strlen(buf);
- buf[len++] = '\n';
- rb_write_error2(buf, len);
- }
- void
- rb_compile_warn(const char *file, int line, const char *fmt, ...)
- {
- char buf[BUFSIZ];
- va_list args;
- if (NIL_P(ruby_verbose)) return;
- snprintf(buf, BUFSIZ, "warning: %s", fmt);
- va_start(args, fmt);
- compile_warn_print(file, line, buf, args);
- va_end(args);
- }
- /* rb_compile_warning() reports only in verbose mode */
- void
- rb_compile_warning(const char *file, int line, const char *fmt, ...)
- {
- char buf[BUFSIZ];
- va_list args;
- if (!RTEST(ruby_verbose)) return;
- snprintf(buf, BUFSIZ, "warning: %s", fmt);
- va_start(args, fmt);
- compile_warn_print(file, line, buf, args);
- va_end(args);
- }
- static void
- warn_print(const char *fmt, va_list args)
- {
- char buf[BUFSIZ];
- int len;
- err_snprintf(buf, BUFSIZ, fmt, args);
- len = (int)strlen(buf);
- buf[len++] = '\n';
- rb_write_error2(buf, len);
- }
- void
- rb_warn(const char *fmt, ...)
- {
- char buf[BUFSIZ];
- va_list args;
- if (NIL_P(ruby_verbose)) return;
- snprintf(buf, BUFSIZ, "warning: %s", fmt);
- va_start(args, fmt);
- warn_print(buf, args);
- va_end(args);
- }
- /* rb_warning() reports only in verbose mode */
- void
- rb_warning(const char *fmt, ...)
- {
- char buf[BUFSIZ];
- va_list args;
- if (!RTEST(ruby_verbose)) return;
- snprintf(buf, BUFSIZ, "warning: %s", fmt);
- va_start(args, fmt);
- warn_print(buf, 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(RT_VER) && RT_VER >= 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 struct types {
- int type;
- const char *name;
- } builtin_types[] = {
- {T_NIL, "nil"},
- {T_OBJECT, "Object"},
- {T_CLASS, "Class"},
- {T_ICLASS, "iClass"}, /* internal use: mixed-in module holder */
- {T_MODULE, "Module"},
- {T_FLOAT, "Float"},
- {T_STRING, "String"},
- {T_REGEXP, "Regexp"},
- {T_ARRAY, "Array"},
- {T_FIXNUM, "Fixnum"},
- {T_HASH, "Hash"},
- {T_STRUCT, "Struct"},
- {T_BIGNUM, "Bignum"},
- {T_FILE, "File"},
- {T_RATIONAL,"Rational"},
- {T_COMPLEX, "Complex"},
- {T_TRUE, "true"},
- {T_FALSE, "false"},
- {T_SYMBOL, "Symbol"}, /* :symbol */
- {T_DATA, "Data"}, /* internal use: wrapped C pointers */
- {T_MATCH, "MatchData"}, /* data of $~ */
- {T_NODE, "Node"}, /* internal use: syntax tree node */
- {T_UNDEF, "undef"}, /* internal use: #undef; should not happen */
- };
- static const char *
- builtin_type_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)
- {
- const struct types *type = builtin_types;
- const struct types *const typeend = builtin_types +
- sizeof(builtin_types) / sizeof(builtin_types[0]);
- 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))) {
- while (type < typeend) {
- if (type->type == t) {
- const char *etype;
- etype = builtin_type_name(x);
- rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)",
- etype, type->name);
- }
- type++;
- }
- 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 (SPECIAL_CONST_P(obj) || BUILTIN_TYPE(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 (SPECIAL_CONST_P(obj) || BUILTIN_TYPE(obj) != T_DATA) {
- etype = builtin_type_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_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);
- }
- /*
- * 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);
- OBJ_INFECT(r, exc);
- 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;
- CONST_ID(bt, "bt");
- return rb_attr_get(exc, bt);
- }
- VALUE
- rb_check_backtrace(VALUE bt)
- {
- long i;
- static const char err[] = "backtrace must be Array of String";
- if (!NIL_P(bt)) {
- int t = TYPE(bt);
- if (t == T_STRING) return rb_ary_new3(1, bt);
- if (t != T_ARRAY) {
- rb_raise(rb_eTypeError, err);
- }
- for (i=0;i<RARRAY_LEN(bt);i++) {
- if (TYPE(RARRAY_PTR(bt)[i]) != T_STRING) {
- rb_raise(rb_eTypeError, err);
- }
- }
- }
- return bt;
- }
- /*
- * call-seq:
- * exc.set_backtrace(array) -> array
- *
- * Sets the backtrace information associated with <i>exc</i>. The
- * argument must be an array of <code>String</code> objects in the
- * format described in <code>Exception#backtrace</code>.
- *
- */
- static VALUE
- exc_set_backtrace(VALUE exc, VALUE bt)
- {
- return rb_iv_set(exc, "bt", rb_check_backtrace(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);
- if (str != mesg) {
- rb_iv_set(exc, "mesg", mesg = str);
- }
- OBJ_INFECT(mesg, exc);
- return mesg;
- }
- /*
- * 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 (TYPE(obj)) {
- case T_NIL:
- desc = "nil";
- break;
- case T_TRUE:
- desc = "true";
- break;
- case T_FALSE:
- 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_cat2(d, rb_obj_classname(obj));
- }
- args[0] = mesg;
- args[1] = ptr[2];
- args[2] = d;
- mesg = rb_f_sprintf(NAME_ERR_MESG_COUNT, args);
- }
- OBJ_INFECT(mesg, obj);
- return mesg;
- }
- /* :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)
- {
- volatile VALUE s = rb_str_inspect(rb_str_new2(str));
- rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING_PTR(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);
- 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;
- 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;
- /* change class */
- if (!RB_TYPE_P(self, T_OBJECT)) { /* insurance to avoid type crash */
- 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 - %.*s", err,
- (int)RSTRING_LEN(str), RSTRING_PTR(str));
- 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)
- * 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: can't convert 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
- * $SAFE = 4
- * foo.gsub! "a", "*"
- * end
- * proc.call
- *
- * <em>raises the exception:</em>
- *
- * SecurityError: Insecure: can't modify string
- */
- /*
- * Document-class: NoMemoryError
- *
- * Raised when memory allocation fails.
- */
- /*
- * Document-class: SystemCallError
- *
- * SystemCallError is the base class for all low-level
- * platform-dependent errors.
- *
- * The errors available on the current platform are subclasses of
- * SystemCallError and are defined in the Errno module.
- *
- * File.open("does/not/exist")
- *
- * <em>raises the exception:</em>
- *
- * Errno::ENOENT: No such file or directory - does/not/exist
- */
- /*
- * Document-class: EncodingError
- *
- * EncodingError is the base class for encoding errors.
- */
- /*
- * Document-class: Encoding::CompatibilityError
- *
- * Raised by Encoding and String methods when the source encoding is
- * incompatible with the target encoding.
- */
- /*
- * Document-class: fatal
- *
- * fatal is an Exception that is raised when ruby has encountered a fatal
- * error and must exit. You are not able to rescue fatal.
- */
- /*
- * Document-class: NameError::message
- * :nodoc:
- */
- /*
- * Descendants of class Exception are used to communicate between
- * Kernel#raise and +rescue+ statements in <code>begin ... end</code> blocks.
- * Exception objects carry information about the exception -- its type (the
- * exception's class name), an optional descriptive string, and optional
- * traceback information. Exception subclasses may add additional
- * information like NameError#name.
- *
- * Programs may make subclasses of Exception, typically of StandardError or
- * RuntimeError, to provide custom classes and add additional information.
- * See the subclass list below for defaults for +raise+ and +rescue+.
- *
- * When an exception has been raised but not yet handled (in +rescue+,
- * +ensure+, +at_exit+ and +END+ blocks) the global variable <code>$!</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);
- 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_to_str, 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_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); /* 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)
- {
- 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
- 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
- }
- static void
- err_append(const char *s, rb_encoding *enc)
- {
- rb_thread_t *th = GET_THREAD();
- VALUE err = th->errinfo;
- if (th->mild_compile_error) {
- if (!RTEST(err)) {
- err = rb_exc_new3(rb_eSyntaxError,
- rb_enc_str_new(s, strlen(s), enc));
- th->errinfo = err;
- }
- else {
- VALUE str = rb_obj_as_string(err);
- rb_str_cat2(str, "\n");
- rb_str_cat2(str, s);
- th->errinfo = rb_exc_new3(rb_eSyntaxError, str);
- }
- }
- else {
- if (!RTEST(err)) {
- err = rb_exc_new2(rb_eSyntaxError, "compile error");
- th->errinfo = err;
- }
- rb_write_error(s);
- rb_write_error("\n");
- }
- }