diff options
Diffstat (limited to 'ruby_1_8_6/error.c')
| -rw-r--r-- | ruby_1_8_6/error.c | 1566 |
1 files changed, 1566 insertions, 0 deletions
diff --git a/ruby_1_8_6/error.c b/ruby_1_8_6/error.c new file mode 100644 index 0000000000..44e709276f --- /dev/null +++ b/ruby_1_8_6/error.c @@ -0,0 +1,1566 @@ +/********************************************************************** + + error.c - + + $Author$ + $Date$ + created at: Mon Aug 9 16:11:34 JST 1993 + + Copyright (C) 1993-2003 Yukihiro Matsumoto + +**********************************************************************/ + +#include "ruby.h" +#include "env.h" +#include "st.h" + +#include <stdio.h> +#ifdef HAVE_STDARG_PROTOTYPES +#include <stdarg.h> +#define va_init_list(a,b) va_start(a,b) +#else +#include <varargs.h> +#define va_init_list(a,b) va_start(a) +#endif +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif +#ifndef EXIT_SUCCESS +#define EXIT_SUCCESS 0 +#endif + +extern const char ruby_version[], ruby_release_date[], ruby_platform[]; + +int ruby_nerrs; + +static int +err_position(buf, len) + char *buf; + long len; +{ + ruby_set_current_source(); + if (!ruby_sourcefile) { + return 0; + } + else if (ruby_sourceline == 0) { + return snprintf(buf, len, "%s: ", ruby_sourcefile); + } + else { + return snprintf(buf, len, "%s:%d: ", ruby_sourcefile, ruby_sourceline); + } +} + +static void +err_snprintf(buf, len, fmt, args) + 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 err_append _((const char*)); +static void +err_print(fmt, args) + const char *fmt; + va_list args; +{ + char buf[BUFSIZ]; + + err_snprintf(buf, BUFSIZ, fmt, args); + err_append(buf); +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_compile_error(const char *fmt, ...) +#else +rb_compile_error(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list args; + + va_init_list(args, fmt); + err_print(fmt, args); + va_end(args); + ruby_nerrs++; +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_compile_error_append(const char *fmt, ...) +#else +rb_compile_error_append(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list args; + char buf[BUFSIZ]; + + va_init_list(args, fmt); + vsnprintf(buf, BUFSIZ, fmt, args); + va_end(args); + err_append(buf); +} + +static void +warn_print(fmt, args) + const char *fmt; + va_list args; +{ + char buf[BUFSIZ]; + int len; + + err_snprintf(buf, BUFSIZ, fmt, args); + len = strlen(buf); + buf[len++] = '\n'; + rb_write_error2(buf, len); +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_warn(const char *fmt, ...) +#else +rb_warn(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + char buf[BUFSIZ]; + va_list args; + + if (NIL_P(ruby_verbose)) return; + + snprintf(buf, BUFSIZ, "warning: %s", fmt); + + va_init_list(args, fmt); + warn_print(buf, args); + va_end(args); +} + +/* rb_warning() reports only in verbose mode */ +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_warning(const char *fmt, ...) +#else +rb_warning(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + char buf[BUFSIZ]; + va_list args; + + if (!RTEST(ruby_verbose)) return; + + snprintf(buf, BUFSIZ, "warning: %s", fmt); + + va_init_list(args, fmt); + warn_print(buf, args); + va_end(args); +} + +/* + * call-seq: + * warn(msg) => nil + * + * Display the given message (followed by a newline) on STDERR unless + * warnings are disabled (for example with the <code>-W0</code> flag). + */ + +static VALUE +rb_warn_m(self, mesg) + VALUE self, mesg; +{ + if (!NIL_P(ruby_verbose)) { + rb_io_write(rb_stderr, mesg); + rb_io_write(rb_stderr, rb_default_rs); + } + return Qnil; +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_bug(const char *fmt, ...) +#else +rb_bug(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + char buf[BUFSIZ]; + va_list args; + FILE *out = stderr; + int len = err_position(buf, BUFSIZ); + + if (fwrite(buf, 1, len, out) == len || + fwrite(buf, 1, len, (out = stdout)) == len) { + fputs("[BUG] ", out); + va_init_list(args, fmt); + vfprintf(out, fmt, args); + va_end(args); + fprintf(out, "\nruby %s (%s) [%s]\n\n", + ruby_version, ruby_release_date, ruby_platform); + } + abort(); +} + +static 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_TRUE, "true"}, + {T_FALSE, "false"}, + {T_SYMBOL, "Symbol"}, /* :symbol */ + {T_DATA, "Data"}, /* internal use: wrapped C pointers */ + {T_MATCH, "MatchData"}, /* data of $~ */ + {T_VARMAP, "Varmap"}, /* internal use: dynamic variables */ + {T_SCOPE, "Scope"}, /* internal use: variable scope */ + {T_NODE, "Node"}, /* internal use: syntax tree node */ + {T_UNDEF, "undef"}, /* internal use: #undef; should not happen */ + {-1, 0} +}; + +void +rb_check_type(x, t) + VALUE x; + int t; +{ + struct types *type = builtin_types; + + if (x == Qundef) { + rb_bug("undef leaked to the Ruby space"); + } + + if (TYPE(x) != t) { + while (type->type >= 0) { + if (type->type == t) { + 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_special_const_p(x)) { + etype = RSTRING(rb_obj_as_string(x))->ptr; + } + else { + etype = rb_obj_classname(x); + } + rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)", + etype, type->name); + } + type++; + } + rb_bug("unknown type 0x%x", t); + } +} + +/* exception classes */ +#include <errno.h> + +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_eRangeError; +VALUE rb_eNameError; +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; + +VALUE +rb_exc_new(etype, ptr, len) + VALUE etype; + const char *ptr; + long len; +{ + return rb_funcall(etype, rb_intern("new"), 1, rb_str_new(ptr, len)); +} + +VALUE +rb_exc_new2(etype, s) + VALUE etype; + const char *s; +{ + return rb_exc_new(etype, s, strlen(s)); +} + +VALUE +rb_exc_new3(etype, str) + VALUE etype, str; +{ + StringValue(str); + return rb_exc_new(etype, RSTRING(str)->ptr, RSTRING(str)->len); +} + +/* + * call-seq: + * Exception.new(msg = nil) => exception + * + * Construct a new Exception object, optionally passing in + * a message. + */ + +static VALUE +exc_initialize(argc, argv, exc) + 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(argc, argv, self) + 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(exc) + VALUE exc; +{ + VALUE mesg = rb_attr_get(exc, rb_intern("mesg")); + + if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc)); + if (OBJ_TAINTED(exc)) OBJ_TAINT(mesg); + return mesg; +} + +/* + * call-seq: + * exception.message => string + * exception.to_str => 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_to_str(exc) + VALUE exc; +{ + return rb_funcall(exc, rb_intern("to_s"), 0, 0); +} + +/* + * call-seq: + * exception.inspect => string + * + * Return this exception's class name an message + */ + +static VALUE +exc_inspect(exc) + VALUE exc; +{ + VALUE str, klass; + + klass = CLASS_OF(exc); + exc = rb_obj_as_string(exc); + if (RSTRING(exc)->len == 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(exc) + VALUE exc; +{ + ID bt = rb_intern("bt"); + + if (!rb_ivar_defined(exc, bt)) return Qnil; + return rb_ivar_get(exc, bt); +} + +static VALUE +check_backtrace(bt) + VALUE bt; +{ + long i; + static 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(bt)->len;i++) { + if (TYPE(RARRAY(bt)->ptr[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(exc, bt) + VALUE exc; + VALUE bt; +{ + return rb_iv_set(exc, "bt", check_backtrace(bt)); +} + +/* + * call-seq: + * SystemExit.new(status=0) => system_exit + * + * Create a new +SystemExit+ exception with the given status. + */ + +static VALUE +exit_initialize(argc, argv, exc) + int argc; + VALUE *argv; + VALUE exc; +{ + VALUE status = INT2FIX(EXIT_SUCCESS); + if (argc > 0 && FIXNUM_P(argv[0])) { + status = *argv++; + --argc; + } + 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(exc) + 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(exc) + VALUE exc; +{ + VALUE status = rb_attr_get(exc, rb_intern("status")); + if (NIL_P(status)) return Qtrue; + if (status == INT2FIX(EXIT_SUCCESS)) return Qtrue; + return Qfalse; +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_name_error(ID id, const char *fmt, ...) +#else +rb_name_error(id, fmt, va_alist) + ID id; + const char *fmt; + va_dcl +#endif +{ + VALUE exc, argv[2]; + va_list args; + char buf[BUFSIZ]; + + va_init_list(args, fmt); + vsnprintf(buf, BUFSIZ, fmt, args); + va_end(args); + + argv[0] = rb_str_new2(buf); + argv[1] = ID2SYM(id); + 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(argc, argv, self) + 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(self) + VALUE self; +{ + return rb_attr_get(self, rb_intern("name")); +} + +/* + * call-seq: + * name_error.to_s => string + * + * Produce a nicely-formated string representing the +NameError+. + */ + +static VALUE +name_err_to_s(exc) + VALUE exc; +{ + VALUE mesg = rb_attr_get(exc, rb_intern("mesg")), 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); + } + if (OBJ_TAINTED(exc)) OBJ_TAINT(mesg); + 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(argc, argv, self) + 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: */ +static void +name_err_mesg_mark(ptr) + VALUE *ptr; +{ + rb_gc_mark_locations(ptr, ptr+3); +} + +/* :nodoc: */ +static VALUE +name_err_mesg_new(obj, mesg, recv, method) + VALUE obj, mesg, recv, method; +{ + VALUE *ptr = ALLOC_N(VALUE, 3); + + ptr[0] = mesg; + ptr[1] = recv; + ptr[2] = method; + return Data_Wrap_Struct(rb_cNameErrorMesg, name_err_mesg_mark, -1, ptr); +} + +/* :nodoc: */ +static VALUE +name_err_mesg_to_str(obj) + VALUE obj; +{ + VALUE *ptr, mesg; + Data_Get_Struct(obj, VALUE, ptr); + + mesg = ptr[0]; + if (NIL_P(mesg)) return Qnil; + else { + char *desc = 0; + VALUE d = 0, args[3]; + + 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, 0); + if (NIL_P(d) || RSTRING(d)->len > 65) { + d = rb_any_to_s(obj); + } + desc = RSTRING(d)->ptr; + break; + } + if (desc && desc[0] != '#') { + 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(3, args); + } + if (OBJ_TAINTED(obj)) OBJ_TAINT(mesg); + return mesg; +} + +/* :nodoc: */ +static VALUE +name_err_mesg_load(klass, str) + VALUE klass, 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(self) + VALUE self; +{ + return rb_attr_get(self, rb_intern("args")); +} + +void +rb_invalid_str(str, type) + const char *str, *type; +{ + VALUE s = rb_str_inspect(rb_str_new2(str)); + + rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING(s)->ptr); +} + +/* + * 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(n, name) + int n; + const char *name; +{ + VALUE 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(n) + int n; +{ + VALUE 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(argc, argv, self) + int argc; + VALUE *argv; + VALUE self; +{ +#if !defined(_WIN32) && !defined(__VMS) + char *strerror(); +#endif + char *err; + VALUE mesg, error; + VALUE klass = rb_obj_class(self); + + if (klass == rb_eSystemCallError) { + 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), &klass)) { + /* change class */ + if (TYPE(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(NUM2LONG(error)); + else err = "unknown error"; + if (!NIL_P(mesg)) { + VALUE str = mesg; + size_t len; + + StringValue(str); + len = strlen(err)+RSTRING(str)->len+3; + mesg = rb_str_new(0, len); + snprintf(RSTRING(mesg)->ptr, len+1, "%s - %.*s", err, + (int)RSTRING(str)->len, RSTRING(str)->ptr); + rb_str_resize(mesg, strlen(RSTRING(mesg)->ptr)); + } + else { + mesg = rb_str_new2(err); + } + 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(self) + 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(self, exc) + VALUE self, exc; +{ + VALUE num, e; + + if (!rb_obj_is_kind_of(exc, rb_eSystemCallError)) return Qfalse; + if (self == rb_eSystemCallError) return Qtrue; + + num = rb_attr_get(exc, rb_intern("errno")); + if (NIL_P(num)) { + VALUE klass = CLASS_OF(exc); + + while (TYPE(klass) == T_ICLASS || FL_TEST(klass, FL_SINGLETON)) { + klass = (VALUE)RCLASS(klass)->super; + } + num = rb_const_get(klass, rb_intern("Errno")); + } + e = rb_const_get(self, rb_intern("Errno")); + if (FIXNUM_P(num) ? num == e : rb_equal(num, e)) + return Qtrue; + return Qfalse; +} + +/* + * Descendents of class <code>Exception</code> are used to communicate + * between <code>raise</code> methods and <code>rescue</code> + * statements in <code>begin/end</code> blocks. <code>Exception</code> + * objects carry information about the exception---its type (the + * exception's class name), an optional descriptive string, and + * optional traceback information. Programs may subclass + * <code>Exception</code> to add additional information. + */ + +void +Init_Exception() +{ + 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, "to_s", exc_to_s, 0); + rb_define_method(rb_eException, "to_str", exc_to_str, 0); + rb_define_method(rb_eException, "message", exc_to_str, 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_eRangeError = rb_define_class("RangeError", rb_eStandardError); + 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, "!", name_err_mesg_new, 3); + 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_eScriptError = rb_define_class("ScriptError", rb_eException); + rb_eSyntaxError = rb_define_class("SyntaxError", rb_eScriptError); + rb_eLoadError = rb_define_class("LoadError", rb_eScriptError); + rb_eNotImpError = rb_define_class("NotImplementedError", rb_eScriptError); + + rb_eRuntimeError = rb_define_class("RuntimeError", rb_eStandardError); + rb_eSecurityError = rb_define_class("SecurityError", rb_eStandardError); + rb_eNoMemError = rb_define_class("NoMemoryError", rb_eException); + + 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 +#ifdef HAVE_STDARG_PROTOTYPES +rb_raise(VALUE exc, const char *fmt, ...) +#else +rb_raise(exc, fmt, va_alist) + VALUE exc; + const char *fmt; + va_dcl +#endif +{ + va_list args; + char buf[BUFSIZ]; + + va_init_list(args,fmt); + vsnprintf(buf, BUFSIZ, fmt, args); + va_end(args); + rb_exc_raise(rb_exc_new2(exc, buf)); +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_loaderror(const char *fmt, ...) +#else +rb_loaderror(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list args; + char buf[BUFSIZ]; + + va_init_list(args, fmt); + vsnprintf(buf, BUFSIZ, fmt, args); + va_end(args); + rb_exc_raise(rb_exc_new2(rb_eLoadError, buf)); +} + +void +rb_notimplement() +{ + rb_raise(rb_eNotImpError, + "%s() function is unimplemented on this machine", + rb_id2name(ruby_frame->last_func)); +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_fatal(const char *fmt, ...) +#else +rb_fatal(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list args; + char buf[BUFSIZ]; + + va_init_list(args, fmt); + vsnprintf(buf, BUFSIZ, fmt, args); + va_end(args); + + ruby_in_eval = 0; + rb_exc_fatal(rb_exc_new2(rb_eFatal, buf)); +} + +void +rb_sys_fail(mesg) + const char *mesg; +{ + int n = errno; + VALUE arg; + + errno = 0; + if (n == 0) { + rb_bug("rb_sys_fail(%s) - errno == 0", mesg ? mesg : ""); + } + + arg = mesg ? rb_str_new2(mesg) : Qnil; + rb_exc_raise(rb_class_new_instance(1, &arg, get_syserr(n))); +} + +void +#ifdef HAVE_STDARG_PROTOTYPES +rb_sys_warning(const char *fmt, ...) +#else +rb_sys_warning(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + 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_init_list(args, fmt); + warn_print(buf, args); + va_end(args); + errno = errno_save; +} + +void +rb_load_fail(path) + const char *path; +{ + rb_loaderror("%s -- %s", strerror(errno), path); +} + +void +rb_error_frozen(what) + const char *what; +{ + rb_raise(rb_eTypeError, "can't modify frozen %s", what); +} + +void +rb_check_frozen(obj) + VALUE obj; +{ + if (OBJ_FROZEN(obj)) rb_error_frozen(rb_obj_classname(obj)); +} + +void +Init_syserr() +{ +#ifdef EPERM + set_syserr(EPERM, "EPERM"); +#endif +#ifdef ENOENT + set_syserr(ENOENT, "ENOENT"); +#endif +#ifdef ESRCH + set_syserr(ESRCH, "ESRCH"); +#endif +#ifdef EINTR + set_syserr(EINTR, "EINTR"); +#endif +#ifdef EIO + set_syserr(EIO, "EIO"); +#endif +#ifdef ENXIO + set_syserr(ENXIO, "ENXIO"); +#endif +#ifdef E2BIG + set_syserr(E2BIG, "E2BIG"); +#endif +#ifdef ENOEXEC + set_syserr(ENOEXEC, "ENOEXEC"); +#endif +#ifdef EBADF + set_syserr(EBADF, "EBADF"); +#endif +#ifdef ECHILD + set_syserr(ECHILD, "ECHILD"); +#endif +#ifdef EAGAIN + set_syserr(EAGAIN, "EAGAIN"); +#endif +#ifdef ENOMEM + set_syserr(ENOMEM, "ENOMEM"); +#endif +#ifdef EACCES + set_syserr(EACCES, "EACCES"); +#endif +#ifdef EFAULT + set_syserr(EFAULT, "EFAULT"); +#endif +#ifdef ENOTBLK + set_syserr(ENOTBLK, "ENOTBLK"); +#endif +#ifdef EBUSY + set_syserr(EBUSY, "EBUSY"); +#endif +#ifdef EEXIST + set_syserr(EEXIST, "EEXIST"); +#endif +#ifdef EXDEV + set_syserr(EXDEV, "EXDEV"); +#endif +#ifdef ENODEV + set_syserr(ENODEV, "ENODEV"); +#endif +#ifdef ENOTDIR + set_syserr(ENOTDIR, "ENOTDIR"); +#endif +#ifdef EISDIR + set_syserr(EISDIR, "EISDIR"); +#endif +#ifdef EINVAL + set_syserr(EINVAL, "EINVAL"); +#endif +#ifdef ENFILE + set_syserr(ENFILE, "ENFILE"); +#endif +#ifdef EMFILE + set_syserr(EMFILE, "EMFILE"); +#endif +#ifdef ENOTTY + set_syserr(ENOTTY, "ENOTTY"); +#endif +#ifdef ETXTBSY + set_syserr(ETXTBSY, "ETXTBSY"); +#endif +#ifdef EFBIG + set_syserr(EFBIG, "EFBIG"); +#endif +#ifdef ENOSPC + set_syserr(ENOSPC, "ENOSPC"); +#endif +#ifdef ESPIPE + set_syserr(ESPIPE, "ESPIPE"); +#endif +#ifdef EROFS + set_syserr(EROFS, "EROFS"); +#endif +#ifdef EMLINK + set_syserr(EMLINK, "EMLINK"); +#endif +#ifdef EPIPE + set_syserr(EPIPE, "EPIPE"); +#endif +#ifdef EDOM + set_syserr(EDOM, "EDOM"); +#endif +#ifdef ERANGE + set_syserr(ERANGE, "ERANGE"); +#endif +#ifdef EDEADLK + set_syserr(EDEADLK, "EDEADLK"); +#endif +#ifdef ENAMETOOLONG + set_syserr(ENAMETOOLONG, "ENAMETOOLONG"); +#endif +#ifdef ENOLCK + set_syserr(ENOLCK, "ENOLCK"); +#endif +#ifdef ENOSYS + set_syserr(ENOSYS, "ENOSYS"); +#endif +#ifdef ENOTEMPTY + set_syserr(ENOTEMPTY, "ENOTEMPTY"); +#endif +#ifdef ELOOP + set_syserr(ELOOP, "ELOOP"); +#endif +#ifdef EWOULDBLOCK + set_syserr(EWOULDBLOCK, "EWOULDBLOCK"); +#endif +#ifdef ENOMSG + set_syserr(ENOMSG, "ENOMSG"); +#endif +#ifdef EIDRM + set_syserr(EIDRM, "EIDRM"); +#endif +#ifdef ECHRNG + set_syserr(ECHRNG, "ECHRNG"); +#endif +#ifdef EL2NSYNC + set_syserr(EL2NSYNC, "EL2NSYNC"); +#endif +#ifdef EL3HLT + set_syserr(EL3HLT, "EL3HLT"); +#endif +#ifdef EL3RST + set_syserr(EL3RST, "EL3RST"); +#endif +#ifdef ELNRNG + set_syserr(ELNRNG, "ELNRNG"); +#endif +#ifdef EUNATCH + set_syserr(EUNATCH, "EUNATCH"); +#endif +#ifdef ENOCSI + set_syserr(ENOCSI, "ENOCSI"); +#endif +#ifdef EL2HLT + set_syserr(EL2HLT, "EL2HLT"); +#endif +#ifdef EBADE + set_syserr(EBADE, "EBADE"); +#endif +#ifdef EBADR + set_syserr(EBADR, "EBADR"); +#endif +#ifdef EXFULL + set_syserr(EXFULL, "EXFULL"); +#endif +#ifdef ENOANO + set_syserr(ENOANO, "ENOANO"); +#endif +#ifdef EBADRQC + set_syserr(EBADRQC, "EBADRQC"); +#endif +#ifdef EBADSLT + set_syserr(EBADSLT, "EBADSLT"); +#endif +#ifdef EDEADLOCK + set_syserr(EDEADLOCK, "EDEADLOCK"); +#endif +#ifdef EBFONT + set_syserr(EBFONT, "EBFONT"); +#endif +#ifdef ENOSTR + set_syserr(ENOSTR, "ENOSTR"); +#endif +#ifdef ENODATA + set_syserr(ENODATA, "ENODATA"); +#endif +#ifdef ETIME + set_syserr(ETIME, "ETIME"); +#endif +#ifdef ENOSR + set_syserr(ENOSR, "ENOSR"); +#endif +#ifdef ENONET + set_syserr(ENONET, "ENONET"); +#endif +#ifdef ENOPKG + set_syserr(ENOPKG, "ENOPKG"); +#endif +#ifdef EREMOTE + set_syserr(EREMOTE, "EREMOTE"); +#endif +#ifdef ENOLINK + set_syserr(ENOLINK, "ENOLINK"); +#endif +#ifdef EADV + set_syserr(EADV, "EADV"); +#endif +#ifdef ESRMNT + set_syserr(ESRMNT, "ESRMNT"); +#endif +#ifdef ECOMM + set_syserr(ECOMM, "ECOMM"); +#endif +#ifdef EPROTO + set_syserr(EPROTO, "EPROTO"); +#endif +#ifdef EMULTIHOP + set_syserr(EMULTIHOP, "EMULTIHOP"); +#endif +#ifdef EDOTDOT + set_syserr(EDOTDOT, "EDOTDOT"); +#endif +#ifdef EBADMSG + set_syserr(EBADMSG, "EBADMSG"); +#endif +#ifdef EOVERFLOW + set_syserr(EOVERFLOW, "EOVERFLOW"); +#endif +#ifdef ENOTUNIQ + set_syserr(ENOTUNIQ, "ENOTUNIQ"); +#endif +#ifdef EBADFD + set_syserr(EBADFD, "EBADFD"); +#endif +#ifdef EREMCHG + set_syserr(EREMCHG, "EREMCHG"); +#endif +#ifdef ELIBACC + set_syserr(ELIBACC, "ELIBACC"); +#endif +#ifdef ELIBBAD + set_syserr(ELIBBAD, "ELIBBAD"); +#endif +#ifdef ELIBSCN + set_syserr(ELIBSCN, "ELIBSCN"); +#endif +#ifdef ELIBMAX + set_syserr(ELIBMAX, "ELIBMAX"); +#endif +#ifdef ELIBEXEC + set_syserr(ELIBEXEC, "ELIBEXEC"); +#endif +#ifdef EILSEQ + set_syserr(EILSEQ, "EILSEQ"); +#endif +#ifdef ERESTART + set_syserr(ERESTART, "ERESTART"); +#endif +#ifdef ESTRPIPE + set_syserr(ESTRPIPE, "ESTRPIPE"); +#endif +#ifdef EUSERS + set_syserr(EUSERS, "EUSERS"); +#endif +#ifdef ENOTSOCK + set_syserr(ENOTSOCK, "ENOTSOCK"); +#endif +#ifdef EDESTADDRREQ + set_syserr(EDESTADDRREQ, "EDESTADDRREQ"); +#endif +#ifdef EMSGSIZE + set_syserr(EMSGSIZE, "EMSGSIZE"); +#endif +#ifdef EPROTOTYPE + set_syserr(EPROTOTYPE, "EPROTOTYPE"); +#endif +#ifdef ENOPROTOOPT + set_syserr(ENOPROTOOPT, "ENOPROTOOPT"); +#endif +#ifdef EPROTONOSUPPORT + set_syserr(EPROTONOSUPPORT, "EPROTONOSUPPORT"); +#endif +#ifdef ESOCKTNOSUPPORT + set_syserr(ESOCKTNOSUPPORT, "ESOCKTNOSUPPORT"); +#endif +#ifdef EOPNOTSUPP + set_syserr(EOPNOTSUPP, "EOPNOTSUPP"); +#endif +#ifdef EPFNOSUPPORT + set_syserr(EPFNOSUPPORT, "EPFNOSUPPORT"); +#endif +#ifdef EAFNOSUPPORT + set_syserr(EAFNOSUPPORT, "EAFNOSUPPORT"); +#endif +#ifdef EADDRINUSE + set_syserr(EADDRINUSE, "EADDRINUSE"); +#endif +#ifdef EADDRNOTAVAIL + set_syserr(EADDRNOTAVAIL, "EADDRNOTAVAIL"); +#endif +#ifdef ENETDOWN + set_syserr(ENETDOWN, "ENETDOWN"); +#endif +#ifdef ENETUNREACH + set_syserr(ENETUNREACH, "ENETUNREACH"); +#endif +#ifdef ENETRESET + set_syserr(ENETRESET, "ENETRESET"); +#endif +#ifdef ECONNABORTED + set_syserr(ECONNABORTED, "ECONNABORTED"); +#endif +#ifdef ECONNRESET + set_syserr(ECONNRESET, "ECONNRESET"); +#endif +#ifdef ENOBUFS + set_syserr(ENOBUFS, "ENOBUFS"); +#endif +#ifdef EISCONN + set_syserr(EISCONN, "EISCONN"); +#endif +#ifdef ENOTCONN + set_syserr(ENOTCONN, "ENOTCONN"); +#endif +#ifdef ESHUTDOWN + set_syserr(ESHUTDOWN, "ESHUTDOWN"); +#endif +#ifdef ETOOMANYREFS + set_syserr(ETOOMANYREFS, "ETOOMANYREFS"); +#endif +#ifdef ETIMEDOUT + set_syserr(ETIMEDOUT, "ETIMEDOUT"); +#endif +#ifdef ECONNREFUSED + set_syserr(ECONNREFUSED, "ECONNREFUSED"); +#endif +#ifdef EHOSTDOWN + set_syserr(EHOSTDOWN, "EHOSTDOWN"); +#endif +#ifdef EHOSTUNREACH + set_syserr(EHOSTUNREACH, "EHOSTUNREACH"); +#endif +#ifdef EALREADY + set_syserr(EALREADY, "EALREADY"); +#endif +#ifdef EINPROGRESS + set_syserr(EINPROGRESS, "EINPROGRESS"); +#endif +#ifdef ESTALE + set_syserr(ESTALE, "ESTALE"); +#endif +#ifdef EUCLEAN + set_syserr(EUCLEAN, "EUCLEAN"); +#endif +#ifdef ENOTNAM + set_syserr(ENOTNAM, "ENOTNAM"); +#endif +#ifdef ENAVAIL + set_syserr(ENAVAIL, "ENAVAIL"); +#endif +#ifdef EISNAM + set_syserr(EISNAM, "EISNAM"); +#endif +#ifdef EREMOTEIO + set_syserr(EREMOTEIO, "EREMOTEIO"); +#endif +#ifdef EDQUOT + set_syserr(EDQUOT, "EDQUOT"); +#endif +} + +static void +err_append(s) + const char *s; +{ + extern VALUE ruby_errinfo; + + if (ruby_in_eval) { + if (NIL_P(ruby_errinfo)) { + ruby_errinfo = rb_exc_new2(rb_eSyntaxError, s); + } + else { + VALUE str = rb_obj_as_string(ruby_errinfo); + + rb_str_cat2(str, "\n"); + rb_str_cat2(str, s); + ruby_errinfo = rb_exc_new3(rb_eSyntaxError, str); + } + } + else { + rb_write_error(s); + rb_write_error("\n"); + } +} |