/error.c
C | 3091 lines | 1956 code | 369 blank | 766 comment | 274 complexity | 55b901a3fb8c3a0f23239c75d2495816 MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, AGPL-3.0
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- /**********************************************************************
- error.c -
- $Author$
- created at: Mon Aug 9 16:11:34 JST 1993
- Copyright (C) 1993-2007 Yukihiro Matsumoto
- **********************************************************************/
- #include "ruby/internal/config.h"
- #include <errno.h>
- #include <stdarg.h>
- #include <stdio.h>
- #ifdef HAVE_STDLIB_H
- # include <stdlib.h>
- #endif
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- #if defined __APPLE__
- # include <AvailabilityMacros.h>
- #endif
- #include "internal.h"
- #include "internal/error.h"
- #include "internal/eval.h"
- #include "internal/io.h"
- #include "internal/load.h"
- #include "internal/object.h"
- #include "internal/symbol.h"
- #include "internal/thread.h"
- #include "internal/variable.h"
- #include "ruby/encoding.h"
- #include "ruby/st.h"
- #include "ruby_assert.h"
- #include "vm_core.h"
- #include "builtin.h"
- /*!
- * \defgroup exception Exception handlings
- * \{
- */
- #ifndef EXIT_SUCCESS
- #define EXIT_SUCCESS 0
- #endif
- #ifndef WIFEXITED
- #define WIFEXITED(status) 1
- #endif
- #ifndef WEXITSTATUS
- #define WEXITSTATUS(status) (status)
- #endif
- VALUE rb_iseqw_local_variables(VALUE iseqval);
- VALUE rb_iseqw_new(const rb_iseq_t *);
- int rb_str_end_with_asciichar(VALUE str, int c);
- VALUE rb_eEAGAIN;
- VALUE rb_eEWOULDBLOCK;
- VALUE rb_eEINPROGRESS;
- static VALUE rb_mWarning;
- static VALUE rb_cWarningBuffer;
- static ID id_warn;
- extern const char ruby_description[];
- 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
- err_vcatf(VALUE str, const char *pre, const char *file, int line,
- const char *fmt, va_list args)
- {
- 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;
- }
- VALUE
- rb_syntax_error_append(VALUE exc, VALUE file, int line, int column,
- rb_encoding *enc, const char *fmt, va_list args)
- {
- const char *fn = NIL_P(file) ? NULL : RSTRING_PTR(file);
- if (!exc) {
- VALUE mesg = rb_enc_str_new(0, 0, enc);
- err_vcatf(mesg, NULL, fn, line, fmt, args);
- rb_str_cat2(mesg, "\n");
- rb_write_error_str(mesg);
- }
- else {
- VALUE mesg;
- if (NIL_P(exc)) {
- mesg = rb_enc_str_new(0, 0, enc);
- exc = rb_class_new_instance(1, &mesg, rb_eSyntaxError);
- }
- else {
- mesg = rb_attr_get(exc, idMesg);
- if (RSTRING_LEN(mesg) > 0 && *(RSTRING_END(mesg)-1) != '\n')
- rb_str_cat_cstr(mesg, "\n");
- }
- err_vcatf(mesg, NULL, fn, line, fmt, args);
- }
- return exc;
- }
- static unsigned int warning_disabled_categories;
- static unsigned int
- rb_warning_category_mask(VALUE category)
- {
- return 1U << rb_warning_category_from_name(category);
- }
- rb_warning_category_t
- rb_warning_category_from_name(VALUE category)
- {
- rb_warning_category_t cat = RB_WARN_CATEGORY_NONE;
- Check_Type(category, T_SYMBOL);
- if (category == ID2SYM(rb_intern("deprecated"))) {
- cat = RB_WARN_CATEGORY_DEPRECATED;
- }
- else if (category == ID2SYM(rb_intern("experimental"))) {
- cat = RB_WARN_CATEGORY_EXPERIMENTAL;
- }
- else {
- rb_raise(rb_eArgError, "unknown category: %"PRIsVALUE, category);
- }
- return cat;
- }
- void
- rb_warning_category_update(unsigned int mask, unsigned int bits)
- {
- warning_disabled_categories &= ~mask;
- warning_disabled_categories |= mask & ~bits;
- }
- MJIT_FUNC_EXPORTED bool
- rb_warning_category_enabled_p(rb_warning_category_t category)
- {
- return !(warning_disabled_categories & (1U << category));
- }
- /*
- * call-seq
- * Warning[category] -> true or false
- *
- * Returns the flag to show the warning messages for +category+.
- * Supported categories are:
- *
- * +:deprecated+ :: deprecation warnings
- * * assignment of non-nil value to <code>$,</code> and <code>$;</code>
- * * keyword arguments
- * * proc/lambda without block
- * etc.
- *
- * +:experimental+ :: experimental features
- * * Pattern matching
- */
- static VALUE
- rb_warning_s_aref(VALUE mod, VALUE category)
- {
- rb_warning_category_t cat = rb_warning_category_from_name(category);
- if (rb_warning_category_enabled_p(cat))
- return Qtrue;
- return Qfalse;
- }
- /*
- * call-seq
- * Warning[category] = flag -> flag
- *
- * Sets the warning flags for +category+.
- * See Warning.[] for the categories.
- */
- static VALUE
- rb_warning_s_aset(VALUE mod, VALUE category, VALUE flag)
- {
- unsigned int mask = rb_warning_category_mask(category);
- unsigned int disabled = warning_disabled_categories;
- if (!RTEST(flag))
- disabled |= mask;
- else
- disabled &= ~mask;
- warning_disabled_categories = disabled;
- return flag;
- }
- /*
- * call-seq:
- * warn(msg) -> nil
- *
- * Writes warning message +msg+ to $stderr. This method is called by
- * Ruby for all emitted warnings.
- */
- static VALUE
- rb_warning_s_warn(VALUE mod, VALUE str)
- {
- Check_Type(str, T_STRING);
- rb_must_asciicompat(str);
- rb_write_error_str(str);
- return Qnil;
- }
- /*
- * Document-module: Warning
- *
- * The Warning module contains a single method named #warn, and the
- * module extends itself, making Warning.warn available.
- * Warning.warn is called for all warnings issued by Ruby.
- * By default, warnings are printed to $stderr.
- *
- * By overriding Warning.warn, you can change how warnings are
- * handled by Ruby, either filtering some warnings, and/or outputting
- * warnings somewhere other than $stderr. When Warning.warn is
- * overridden, super can be called to get the default behavior of
- * printing the warning to $stderr.
- */
- static VALUE
- rb_warning_warn(VALUE mod, VALUE str)
- {
- return rb_funcallv(mod, id_warn, 1, &str);
- }
- static void
- rb_write_warning_str(VALUE str)
- {
- rb_warning_warn(rb_mWarning, str);
- }
- static VALUE
- warn_vsprintf(rb_encoding *enc, const char *file, int line, const char *fmt, va_list args)
- {
- VALUE str = rb_enc_str_new(0, 0, enc);
- err_vcatf(str, "warning: ", file, line, fmt, args);
- return rb_str_cat2(str, "\n");
- }
- void
- rb_compile_warn(const char *file, int line, const char *fmt, ...)
- {
- VALUE str;
- va_list args;
- if (NIL_P(ruby_verbose)) return;
- va_start(args, fmt);
- str = warn_vsprintf(NULL, file, line, fmt, args);
- va_end(args);
- rb_write_warning_str(str);
- }
- /* rb_compile_warning() reports only in verbose mode */
- void
- rb_compile_warning(const char *file, int line, const char *fmt, ...)
- {
- VALUE str;
- va_list args;
- if (!RTEST(ruby_verbose)) return;
- va_start(args, fmt);
- str = warn_vsprintf(NULL, file, line, fmt, args);
- va_end(args);
- rb_write_warning_str(str);
- }
- static VALUE
- warning_string(rb_encoding *enc, const char *fmt, va_list args)
- {
- int line;
- const char *file = rb_source_location_cstr(&line);
- return warn_vsprintf(enc, file, line, fmt, args);
- }
- #define with_warning_string(mesg, enc, fmt) \
- VALUE mesg; \
- va_list args; va_start(args, fmt); \
- mesg = warning_string(enc, fmt, args); \
- va_end(args);
- void
- rb_warn(const char *fmt, ...)
- {
- if (!NIL_P(ruby_verbose)) {
- with_warning_string(mesg, 0, fmt) {
- rb_write_warning_str(mesg);
- }
- }
- }
- void
- rb_enc_warn(rb_encoding *enc, const char *fmt, ...)
- {
- if (!NIL_P(ruby_verbose)) {
- with_warning_string(mesg, enc, fmt) {
- rb_write_warning_str(mesg);
- }
- }
- }
- /* rb_warning() reports only in verbose mode */
- void
- rb_warning(const char *fmt, ...)
- {
- if (RTEST(ruby_verbose)) {
- with_warning_string(mesg, 0, fmt) {
- rb_write_warning_str(mesg);
- }
- }
- }
- VALUE
- rb_warning_string(const char *fmt, ...)
- {
- with_warning_string(mesg, 0, fmt) {
- }
- return mesg;
- }
- #if 0
- void
- rb_enc_warning(rb_encoding *enc, const char *fmt, ...)
- {
- if (RTEST(ruby_verbose)) {
- with_warning_string(mesg, enc, fmt) {
- rb_write_warning_str(mesg);
- }
- }
- }
- #endif
- void
- rb_warn_deprecated(const char *fmt, const char *suggest, ...)
- {
- if (NIL_P(ruby_verbose)) return;
- if (!rb_warning_category_enabled_p(RB_WARN_CATEGORY_DEPRECATED)) return;
- va_list args;
- va_start(args, suggest);
- VALUE mesg = warning_string(0, fmt, args);
- va_end(args);
- rb_str_set_len(mesg, RSTRING_LEN(mesg) - 1);
- rb_str_cat_cstr(mesg, " is deprecated");
- if (suggest) rb_str_catf(mesg, "; use %s instead", suggest);
- rb_str_cat_cstr(mesg, "\n");
- rb_write_warning_str(mesg);
- }
- void
- rb_warn_deprecated_to_remove(const char *fmt, const char *removal, ...)
- {
- if (NIL_P(ruby_verbose)) return;
- if (!rb_warning_category_enabled_p(RB_WARN_CATEGORY_DEPRECATED)) return;
- va_list args;
- va_start(args, removal);
- VALUE mesg = warning_string(0, fmt, args);
- va_end(args);
- rb_str_set_len(mesg, RSTRING_LEN(mesg) - 1);
- rb_str_catf(mesg, " is deprecated and will be removed in Ruby %s\n", removal);
- rb_write_warning_str(mesg);
- }
- static inline int
- end_with_asciichar(VALUE str, int c)
- {
- return RB_TYPE_P(str, T_STRING) &&
- rb_str_end_with_asciichar(str, c);
- }
- /* :nodoc: */
- static VALUE
- warning_write(int argc, VALUE *argv, VALUE buf)
- {
- while (argc-- > 0) {
- rb_str_append(buf, *argv++);
- }
- return buf;
- }
- VALUE rb_ec_backtrace_location_ary(rb_execution_context_t *ec, long lev, long n);
- static VALUE
- rb_warn_m(rb_execution_context_t *ec, VALUE exc, VALUE msgs, VALUE uplevel)
- {
- VALUE location = Qnil;
- int argc = RARRAY_LENINT(msgs);
- const VALUE *argv = RARRAY_CONST_PTR(msgs);
- if (!NIL_P(ruby_verbose) && argc > 0) {
- VALUE str = argv[0];
- if (!NIL_P(uplevel)) {
- long lev = NUM2LONG(uplevel);
- if (lev < 0) {
- rb_raise(rb_eArgError, "negative level (%ld)", lev);
- }
- location = rb_ec_backtrace_location_ary(ec, lev + 1, 1);
- if (!NIL_P(location)) {
- location = rb_ary_entry(location, 0);
- }
- }
- if (argc > 1 || !NIL_P(uplevel) || !end_with_asciichar(str, '\n')) {
- VALUE path;
- if (NIL_P(uplevel)) {
- str = rb_str_tmp_new(0);
- }
- else if (NIL_P(location) ||
- NIL_P(path = rb_funcall(location, rb_intern("path"), 0))) {
- str = rb_str_new_cstr("warning: ");
- }
- else {
- str = rb_sprintf("%s:%ld: warning: ",
- rb_string_value_ptr(&path),
- NUM2LONG(rb_funcall(location, rb_intern("lineno"), 0)));
- }
- RBASIC_SET_CLASS(str, rb_cWarningBuffer);
- rb_io_puts(argc, argv, str);
- RBASIC_SET_CLASS(str, rb_cString);
- }
- if (exc == rb_mWarning) {
- rb_must_asciicompat(str);
- rb_write_error_str(str);
- }
- else {
- rb_write_warning_str(str);
- }
- }
- return Qnil;
- }
- #define MAX_BUG_REPORTERS 0x100
- static struct bug_reporters {
- void (*func)(FILE *out, void *data);
- void *data;
- } bug_reporters[MAX_BUG_REPORTERS];
- static int bug_reporters_size;
- int
- rb_bug_reporter_add(void (*func)(FILE *, void *), void *data)
- {
- struct bug_reporters *reporter;
- if (bug_reporters_size >= MAX_BUG_REPORTERS) {
- return 0; /* failed to register */
- }
- reporter = &bug_reporters[bug_reporters_size++];
- reporter->func = func;
- reporter->data = data;
- return 1;
- }
- /* SIGSEGV handler might have a very small stack. Thus we need to use it carefully. */
- #define REPORT_BUG_BUFSIZ 256
- static FILE *
- bug_report_file(const char *file, int line)
- {
- char buf[REPORT_BUG_BUFSIZ];
- FILE *out = stderr;
- int len = err_position_0(buf, sizeof(buf), file, line);
- if ((ssize_t)fwrite(buf, 1, len, out) == (ssize_t)len ||
- (ssize_t)fwrite(buf, 1, len, (out = stdout)) == (ssize_t)len) {
- return out;
- }
- return NULL;
- }
- FUNC_MINIMIZED(static void bug_important_message(FILE *out, const char *const msg, size_t len));
- static void
- bug_important_message(FILE *out, const char *const msg, size_t len)
- {
- const char *const endmsg = msg + len;
- const char *p = msg;
- if (!len) return;
- if (isatty(fileno(out))) {
- static const char red[] = "\033[;31;1;7m";
- static const char green[] = "\033[;32;7m";
- static const char reset[] = "\033[m";
- const char *e = strchr(p, '\n');
- const int w = (int)(e - p);
- do {
- int i = (int)(e - p);
- fputs(*p == ' ' ? green : red, out);
- fwrite(p, 1, e - p, out);
- for (; i < w; ++i) fputc(' ', out);
- fputs(reset, out);
- fputc('\n', out);
- } while ((p = e + 1) < endmsg && (e = strchr(p, '\n')) != 0 && e > p + 1);
- }
- fwrite(p, 1, endmsg - p, out);
- }
- static void
- preface_dump(FILE *out)
- {
- #if defined __APPLE__
- static const char msg[] = ""
- "-- Crash Report log information "
- "--------------------------------------------\n"
- " See Crash Report log file under the one of following:\n"
- # if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
- " * ~/Library/Logs/CrashReporter\n"
- " * /Library/Logs/CrashReporter\n"
- # endif
- " * ~/Library/Logs/DiagnosticReports\n"
- " * /Library/Logs/DiagnosticReports\n"
- " for more details.\n"
- "Don't forget to include the above Crash Report log file in bug reports.\n"
- "\n";
- const size_t msglen = sizeof(msg) - 1;
- #else
- const char *msg = NULL;
- const size_t msglen = 0;
- #endif
- bug_important_message(out, msg, msglen);
- }
- static void
- postscript_dump(FILE *out)
- {
- #if defined __APPLE__
- static const char msg[] = ""
- "[IMPORTANT]"
- /*" ------------------------------------------------"*/
- "\n""Don't forget to include the Crash Report log file under\n"
- # if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
- "CrashReporter or "
- # endif
- "DiagnosticReports directory in bug reports.\n"
- /*"------------------------------------------------------------\n"*/
- "\n";
- const size_t msglen = sizeof(msg) - 1;
- #else
- const char *msg = NULL;
- const size_t msglen = 0;
- #endif
- bug_important_message(out, msg, msglen);
- }
- static void
- bug_report_begin_valist(FILE *out, const char *fmt, va_list args)
- {
- char buf[REPORT_BUG_BUFSIZ];
- fputs("[BUG] ", out);
- vsnprintf(buf, sizeof(buf), fmt, args);
- fputs(buf, out);
- snprintf(buf, sizeof(buf), "\n%s\n\n", ruby_description);
- fputs(buf, out);
- preface_dump(out);
- }
- #define bug_report_begin(out, fmt) do { \
- va_list args; \
- va_start(args, fmt); \
- bug_report_begin_valist(out, fmt, args); \
- va_end(args); \
- } while (0)
- static void
- bug_report_end(FILE *out)
- {
- /* call additional bug reporters */
- {
- int i;
- for (i=0; i<bug_reporters_size; i++) {
- struct bug_reporters *reporter = &bug_reporters[i];
- (*reporter->func)(out, reporter->data);
- }
- }
- postscript_dump(out);
- }
- #define report_bug(file, line, fmt, ctx) do { \
- FILE *out = bug_report_file(file, line); \
- if (out) { \
- bug_report_begin(out, fmt); \
- rb_vm_bugreport(ctx); \
- bug_report_end(out); \
- } \
- } while (0) \
- #define report_bug_valist(file, line, fmt, ctx, args) do { \
- FILE *out = bug_report_file(file, line); \
- if (out) { \
- bug_report_begin_valist(out, fmt, args); \
- rb_vm_bugreport(ctx); \
- bug_report_end(out); \
- } \
- } while (0) \
- NORETURN(static void die(void));
- static void
- die(void)
- {
- #if defined(_WIN32) && defined(RUBY_MSVCRT_VERSION) && RUBY_MSVCRT_VERSION >= 80
- _set_abort_behavior( 0, _CALL_REPORTFAULT);
- #endif
- abort();
- }
- void
- rb_bug(const char *fmt, ...)
- {
- const char *file = NULL;
- int line = 0;
- if (GET_EC()) {
- file = rb_source_location_cstr(&line);
- }
- report_bug(file, line, fmt, NULL);
- die();
- }
- void
- rb_bug_for_fatal_signal(ruby_sighandler_t default_sighandler, int sig, const void *ctx, const char *fmt, ...)
- {
- const char *file = NULL;
- int line = 0;
- if (GET_EC()) {
- file = rb_source_location_cstr(&line);
- }
- report_bug(file, line, fmt, ctx);
- if (default_sighandler) default_sighandler(sig);
- die();
- }
- 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));
- abort();
- }
- void
- rb_report_bug_valist(VALUE file, int line, const char *fmt, va_list args)
- {
- report_bug_valist(RSTRING_PTR(file), line, fmt, NULL, args);
- }
- MJIT_FUNC_EXPORTED void
- rb_assert_failure(const char *file, int line, const char *name, const char *expr)
- {
- FILE *out = stderr;
- fprintf(out, "Assertion Failed: %s:%d:", file, line);
- if (name) fprintf(out, "%s:", name);
- fprintf(out, "%s\n%s\n\n", expr, ruby_description);
- preface_dump(out);
- rb_vm_bugreport(NULL);
- bug_report_end(out);
- die();
- }
- 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",
- "undef", /* internal use: #undef; should not happen */
- "", /* 0x17 */
- "", /* 0x18 */
- "", /* 0x19 */
- "Memo", /* internal use: general memo */
- "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;
- }
- static const char *
- builtin_class_name(VALUE x)
- {
- const char *etype;
- if (NIL_P(x)) {
- etype = "nil";
- }
- else if (FIXNUM_P(x)) {
- etype = "Integer";
- }
- 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 = NULL;
- }
- return etype;
- }
- const char *
- rb_builtin_class_name(VALUE x)
- {
- const char *etype = builtin_class_name(x);
- if (!etype) {
- etype = rb_obj_classname(x);
- }
- return etype;
- }
- NORETURN(static void unexpected_type(VALUE, int, int));
- #define UNDEF_LEAKED "undef leaked to the Ruby space"
- static void
- unexpected_type(VALUE x, int xt, int t)
- {
- const char *tname = rb_builtin_type_name(t);
- VALUE mesg, exc = rb_eFatal;
- if (tname) {
- const char *cname = builtin_class_name(x);
- if (cname)
- mesg = rb_sprintf("wrong argument type %s (expected %s)",
- cname, tname);
- else
- mesg = rb_sprintf("wrong argument type %"PRIsVALUE" (expected %s)",
- rb_obj_class(x), tname);
- exc = rb_eTypeError;
- }
- else if (xt > T_MASK && xt <= 0x3f) {
- mesg = rb_sprintf("unknown type 0x%x (0x%x given, probably comes"
- " from extension library for ruby 1.8)", t, xt);
- }
- else {
- mesg = rb_sprintf("unknown type 0x%x (0x%x given)", t, xt);
- }
- rb_exc_raise(rb_exc_new_str(exc, mesg));
- }
- void
- rb_check_type(VALUE x, int t)
- {
- int xt;
- if (x == Qundef) {
- rb_bug(UNDEF_LEAKED);
- }
- xt = TYPE(x);
- if (xt != t || (xt == T_DATA && RTYPEDDATA_P(x))) {
- unexpected_type(x, xt, t);
- }
- }
- void
- rb_unexpected_type(VALUE x, int t)
- {
- if (x == Qundef) {
- rb_bug(UNDEF_LEAKED);
- }
- unexpected_type(x, TYPE(x), t);
- }
- 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;
- }
- #undef rb_typeddata_is_instance_of
- int
- rb_typeddata_is_instance_of(VALUE obj, const rb_data_type_t *data_type)
- {
- return rb_typeddata_is_instance_of_inline(obj, data_type);
- }
- void *
- rb_check_typeddata(VALUE obj, const rb_data_type_t *data_type)
- {
- const char *etype;
- if (!RB_TYPE_P(obj, T_DATA)) {
- wrong_type:
- etype = builtin_class_name(obj);
- if (!etype)
- rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE" (expected %s)",
- rb_obj_class(obj), data_type->wrap_struct_name);
- wrong_datatype:
- rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)",
- etype, data_type->wrap_struct_name);
- }
- if (!RTYPEDDATA_P(obj)) {
- goto wrong_type;
- }
- else if (!rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) {
- etype = RTYPEDDATA_TYPE(obj)->wrap_struct_name;
- goto wrong_datatype;
- }
- 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_eFrozenError;
- 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_eNoMatchingPatternError;
- VALUE rb_eScriptError;
- VALUE rb_eSyntaxError;
- VALUE rb_eLoadError;
- VALUE rb_eSystemCallError;
- VALUE rb_mErrno;
- static VALUE rb_eNOERROR;
- ID ruby_static_id_cause;
- #define id_cause ruby_static_id_cause
- static ID id_message, id_backtrace;
- static ID id_key, id_args, id_Errno, id_errno, id_i_path;
- static ID id_receiver, id_recv, id_iseq, id_local_variables;
- static ID id_private_call_p, id_top, id_bottom;
- #define id_bt idBt
- #define id_bt_locations idBt_locations
- #define id_mesg idMesg
- #define id_name idName
- #undef rb_exc_new_cstr
- VALUE
- rb_exc_new(VALUE etype, const char *ptr, long len)
- {
- VALUE mesg = rb_str_new(ptr, len);
- return rb_class_new_instance(1, &mesg, etype);
- }
- 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_class_new_instance(1, &str, etype);
- }
- static VALUE
- exc_init(VALUE exc, VALUE mesg)
- {
- rb_ivar_set(exc, id_mesg, mesg);
- rb_ivar_set(exc, id_bt, Qnil);
- return exc;
- }
- /*
- * 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;
- arg = (!rb_check_arity(argc, 0, 1) ? Qnil : argv[0]);
- return exc_init(exc, arg);
- }
- /*
- * 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;
- argc = rb_check_arity(argc, 0, 1);
- if (argc == 0) return self;
- if (argc == 1 && self == argv[0]) return self;
- exc = rb_obj_clone(self);
- rb_ivar_set(exc, id_mesg, argv[0]);
- 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, idMesg);
- if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc));
- return rb_String(mesg);
- }
- /* FIXME: Include eval_error.c */
- void rb_error_write(VALUE errinfo, VALUE emesg, VALUE errat, VALUE str, VALUE highlight, VALUE reverse);
- VALUE
- rb_get_message(VALUE exc)
- {
- VALUE e = rb_check_funcall(exc, id_message, 0, 0);
- if (e == Qundef) return Qnil;
- if (!RB_TYPE_P(e, T_STRING)) e = rb_check_string_type(e);
- return e;
- }
- /*
- * call-seq:
- * Exception.to_tty? -> true or false
- *
- * Returns +true+ if exception messages will be sent to a tty.
- */
- static VALUE
- exc_s_to_tty_p(VALUE self)
- {
- return rb_stderr_tty_p() ? Qtrue : Qfalse;
- }
- /*
- * call-seq:
- * exception.full_message(highlight: bool, order: [:top or :bottom]) -> string
- *
- * Returns formatted string of _exception_.
- * The returned string is formatted using the same format that Ruby uses
- * when printing an uncaught exceptions to stderr.
- *
- * If _highlight_ is +true+ the default error handler will send the
- * messages to a tty.
- *
- * _order_ must be either of +:top+ or +:bottom+, and places the error
- * message and the innermost backtrace come at the top or the bottom.
- *
- * The default values of these options depend on <code>$stderr</code>
- * and its +tty?+ at the timing of a call.
- */
- static VALUE
- exc_full_message(int argc, VALUE *argv, VALUE exc)
- {
- VALUE opt, str, emesg, errat;
- enum {kw_highlight, kw_order, kw_max_};
- static ID kw[kw_max_];
- VALUE args[kw_max_] = {Qnil, Qnil};
- rb_scan_args(argc, argv, "0:", &opt);
- if (!NIL_P(opt)) {
- if (!kw[0]) {
- #define INIT_KW(n) kw[kw_##n] = rb_intern_const(#n)
- INIT_KW(highlight);
- INIT_KW(order);
- #undef INIT_KW
- }
- rb_get_kwargs(opt, kw, 0, kw_max_, args);
- switch (args[kw_highlight]) {
- default:
- rb_raise(rb_eArgError, "expected true or false as "
- "highlight: %+"PRIsVALUE, args[kw_highlight]);
- case Qundef: args[kw_highlight] = Qnil; break;
- case Qtrue: case Qfalse: case Qnil: break;
- }
- if (args[kw_order] == Qundef) {
- args[kw_order] = Qnil;
- }
- else {
- ID id = rb_check_id(&args[kw_order]);
- if (id == id_bottom) args[kw_order] = Qtrue;
- else if (id == id_top) args[kw_order] = Qfalse;
- else {
- rb_raise(rb_eArgError, "expected :top or :bottom as "
- "order: %+"PRIsVALUE, args[kw_order]);
- }
- }
- }
- str = rb_str_new2("");
- errat = rb_get_backtrace(exc);
- emesg = rb_get_message(exc);
- rb_error_write(exc, emesg, errat, str, args[kw_highlight], args[kw_order]);
- return str;
- }
- /*
- * call-seq:
- * exception.message -> string
- *
- * Returns the result of invoking <code>exception.to_s</code>.
- * Normally this returns the exception's message or name.
- */
- static VALUE
- exc_message(VALUE exc)
- {
- return rb_funcallv(exc, idTo_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_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 or nil
- *
- * 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
- *
- * In the case no backtrace has been set, +nil+ is returned
- *
- * ex = StandardError.new
- * ex.backtrace
- * #=> nil
- */
- static VALUE
- exc_backtrace(VALUE exc)
- {
- VALUE obj;
- obj = rb_attr_get(exc, id_bt);
- if (rb_backtrace_p(obj)) {
- obj = rb_backtrace_to_str_ary(obj);
- /* rb_ivar_set(exc, id_bt, obj); */
- }
- return obj;
- }
- static VALUE rb_check_backtrace(VALUE);
- VALUE
- rb_get_backtrace(VALUE exc)
- {
- ID mid = id_backtrace;
- VALUE info;
- if (rb_method_basic_definition_p(CLASS_OF(exc), id_backtrace)) {
- VALUE klass = rb_eException;
- rb_execution_context_t *ec = GET_EC();
- if (NIL_P(exc))
- return Qnil;
- EXEC_EVENT_HOOK(ec, RUBY_EVENT_C_CALL, exc, mid, mid, klass, Qundef);
- info = exc_backtrace(exc);
- EXEC_EVENT_HOOK(ec, RUBY_EVENT_C_RETURN, exc, mid, mid, klass, info);
- }
- else {
- info = rb_funcallv(exc, mid, 0, 0);
- }
- if (NIL_P(info)) return Qnil;
- return rb_check_backtrace(info);
- }
- /*
- * call-seq:
- * exception.backtrace_locations -> array or nil
- *
- * Returns any backtrace associated with the exception. This method is
- * similar to Exception#backtrace, but the backtrace is an array of
- * Thread::Backtrace::Location.
- *
- * This method is not affected by Exception#set_backtrace().
- */
- static VALUE
- exc_backtrace_locations(VALUE exc)
- {
- VALUE obj;
- obj = rb_attr_get(exc, id_bt_locations);
- if (!NIL_P(obj)) {
- obj = rb_backtrace_to_location_ary(obj);
- }
- return obj;
- }
- static 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_ivar_set(exc, id_bt, rb_check_backtrace(bt));
- }
- MJIT_FUNC_EXPORTED VALUE
- rb_exc_set_backtrace(VALUE exc, VALUE bt)
- {
- return exc_set_backtrace(exc, bt);
- }
- /*
- * call-seq:
- * exception.cause -> an_exception or nil
- *
- * Returns the previous exception ($!) at the time this exception was raised.
- * This is useful for wrapping exceptions and retaining the original exception
- * information.
- */
- static VALUE
- exc_cause(VALUE exc)
- {
- return rb_attr_get(exc, id_cause);
- }
- static VALUE
- try_convert_to_exception(VALUE obj)
- {
- return rb_check_funcall(obj, idException, 0, 0);
- }
- /*
- * call-seq:
- * exc == obj -> true or false
- *
- * Equality---If <i>obj</i> is not an Exception, 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;
- if (exc == obj) return Qtrue;
- if (rb_obj_class(exc) != rb_obj_class(obj)) {
- int state;
- obj = rb_protect(try_convert_to_exception, obj, &state);
- if (state || 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_ivar_set(exc, id_status, status);
- return exc;
- }
- /*
- * call-seq:
- * system_exit.status -> integer
- *
- * Return the status value associated with this system exit.
- */
- static VALUE
- exit_status(VALUE exc)
- {
- return rb_attr_get(exc, id_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, id_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;
- }
- static VALUE
- err_init_recv(VALUE exc, VALUE recv)
- {
- if (recv != Qundef) rb_ivar_set(exc, id_recv, recv);
- return exc;
- }
- /*
- * call-seq:
- * FrozenError.new(msg=nil, receiver: nil) -> frozen_error
- *
- * Construct a new FrozenError exception. If given the <i>receiver</i>
- * parameter may subsequently be examined using the FrozenError#receiver
- * method.
- *
- * a = [].freeze
- * raise FrozenError.new("can't modify frozen array", receiver: a)
- */
- static VALUE
- frozen_err_initialize(int argc, VALUE *argv, VALUE self)
- {
- ID keywords[1];
- VALUE values[numberof(keywords)], options;
- argc = rb_scan_args(argc, argv, "*:", NULL, &options);
- keywords[0] = id_receiver;
- rb_get_kwargs(options, keywords, 0, numberof(values), values);
- rb_call_super(argc, argv);
- err_init_recv(self, values[0]);
- return self;
- }
- /*
- * Document-method: FrozenError#receiver
- * call-seq:
- * frozen_error.receiver -> object
- *
- * Return the receiver associated with this FrozenError exception.
- */
- #define frozen_err_receiver name_err_receiver
- void
- rb_name_error(ID id, const char *fmt, ...)
- {
- VALUE exc, argv[2];
- va_list args;
- va_start(args, fmt);
- argv[0] = rb_vsprintf(fmt, args);
- va_end(args);
- argv[1] = ID2SYM(id);
- exc = rb_class_new_instance(2, argv, rb_eNameError);
- rb_exc_raise(exc);
- }
- void
- rb_name_error_str(VALUE str, const char *fmt, ...)
- {
- VALUE exc, argv[2];
- va_list args;
- va_start(args, fmt);
- argv[0] = rb_vsprintf(fmt, args);
- va_end(args);
- argv[1] = str;
- exc = rb_class_new_instance(2, argv, rb_eNameError);
- rb_exc_raise(exc);
- }
- static VALUE
- name_err_init_attr(VALUE exc, VALUE recv, VALUE method)
- {
- const rb_execution_context_t *ec = GET_EC();
- rb_control_frame_t *cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(ec->cfp);
- cfp = rb_vm_get_ruby_level_next_cfp(ec, cfp);
- rb_ivar_set(exc, id_name, method);
- err_init_recv(exc, recv);
- if (cfp) rb_ivar_set(exc, id_iseq, rb_iseqw_new(cfp->iseq));
- return exc;
- }
- /*
- * call-seq:
- * NameError.new(msg=nil, name=nil, receiver: nil) -> name_error
- *
- * Construct a new NameError exception. If given the <i>name</i>
- * parameter may subsequently be examined using the NameError#name
- * method. <i>receiver</i> parameter allows to pass object in
- * context of which the error happened. Example:
- *
- * [1, 2, 3].method(:rject) # NameError with name "rject" and receiver: Array
- * [1, 2, 3].singleton_method(:rject) # NameError with name "rject" and receiver: [1, 2, 3]
- */
- static VALUE
- name_err_initialize(int argc, VALUE *argv, VALUE self)
- {
- ID keywords[1];
- VALUE values[numberof(keywords)], name, options;
- argc = rb_scan_args(argc, argv, "*:", NULL, &options);
- keywords[0] = id_receiver;
- rb_get_kwargs(options, keywords, 0, numberof(values), values);
- name = (argc > 1) ? argv[--argc] : Qnil;
- rb_call_super(argc, argv);
- name_err_init_attr(self, values[0], name);
- return self;
- }
- static VALUE rb_name_err_mesg_new(VALUE mesg, VALUE recv, VALUE method);
- static VALUE
- name_err_init(VALUE exc, VALUE mesg, VALUE recv, VALUE method)
- {
- exc_init(exc, rb_name_err_mesg_new(mesg, recv, method));
- return name_err_init_attr(exc, recv, method);
- }
- VALUE
- rb_name_err_new(VALUE mesg, VALUE recv, VALUE method)
- {
- VALUE exc = rb_obj_alloc(rb_eNameError);
- return name_err_init(exc, mesg, recv, method);
- }
- /*
- * 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, id_name);
- }
- /*
- * call-seq:
- * name_error.local_variables -> array
- *
- * Return a list of the local variable names defined where this
- * NameError exception was raised.
- *
- * Internal use only.
- */
- static VALUE
- name_err_local_variables(VALUE self)
- {
- VALUE vars = rb_attr_get(self, id_local_variables);
- if (NIL_P(vars)) {
- VALUE iseqw = rb_attr_get(self, id_iseq);
- if (!NIL_P(iseqw)) vars = rb_iseqw_local_variables(iseqw);
- if (NIL_P(vars)) vars = rb_ary_new();
- rb_ivar_set(self, id_local_variables, vars);
- }
- return vars;
- }
- static VALUE
- nometh_err_init_attr(VALUE exc, VALUE args, int priv)
- {
- rb_ivar_set(exc, id_args, args);
- rb_ivar_set(exc, id_private_call_p, priv ? Qtrue : Qfalse);
- return exc;
- }
- /*
- * call-seq:
- * NoMethodError.new(msg=nil, name=nil, args=nil, private=false, receiver: nil) -> 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.
- *
- * If <i>private</i> argument were passed, it designates method was
- * attempted to call in private context, and can be accessed with
- * <code>#private_call?</code> method.
- *
- * <i>receiver</i> argument stores an object whose method was called.
- */
- static VALUE
- nometh_err_initialize(int argc, VALUE *argv, VALUE self)
- {
- int priv;
- VALUE args, options;
- argc = rb_scan_args(argc, argv, "*:", NULL, &options);
- priv = (argc > 3) && (--argc, RTEST(argv[argc]));
- args = (argc > 2) ? argv[--argc] : Qnil;
- if (!NIL_P(options)) argv[argc++] = options;
- rb_call_super_kw(argc, argv, RB_PASS_CALLED_KEYWORDS);
- return nometh_err_init_attr(self, args, priv);
- }
- VALUE
- rb_nomethod_err_new(VALUE mesg, VALUE recv, VALUE method, VALUE args, int priv)
- {
- VALUE exc = rb_obj_alloc(rb_eNoMethodError);
- name_err_init(exc, mesg, recv, method);
- return nometh_err_init_attr(exc, args, priv);
- }
- /* :nodoc: */
- enum {
- NAME_ERR_MESG__MESG,
- NAME_ERR_MESG__RECV,
- NAME_ERR_MESG__NAME,
- NAME_ERR_MESG_COUNT
- };
- 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 NAME_ERR_MESG_COUNT * sizeof(VALUE);
- }
- 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,
- },
- 0, 0, RUBY_TYPED_FREE_IMMEDIATELY
- };
- /* :nodoc: */
- static VALUE
- rb_name_err_mesg_new(VALUE mesg, VALUE recv, VALUE method)
- {
- VALUE result = TypedData_Wrap_Struct(rb_cNameErrorMesg, &name_err_mesg_data_type, 0);
- VALUE *ptr = ALLOC_N(VALUE, NAME_ERR_MESG_COUNT);
- ptr[NAME_ERR_MESG__MESG] = mesg;
- ptr[NAME_ERR_MESG__RECV] = recv;
- ptr[NAME_ERR_MESG__NAME] = method;
- RTYPEDDATA_DATA(result) = ptr;
- 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[NAME_ERR_MESG__MESG];
- if (NIL_P(mesg)) return Qnil;
- else {
- struct RString s_str, d_str;
- VALUE c, s, d = 0, args[4];
- int state = 0, singleton = 0;
- rb_encoding *usascii = rb_usascii_encoding();
- #define FAKE_CSTR(v, str) rb_setup_fake_str((v), (str), rb_strlen_lit(str), usascii)
- obj = ptr[NAME_ERR_MESG__RECV];
- switch (obj) {
- case Qnil:
- d = FAKE_CSTR(&d_str, "nil");
- break;
- case Qtrue:
- d = FAKE_CSTR(&d_str, "true");
- break;
- case Qfalse:
- d = FAKE_CSTR(&d_str, "false");
- break;
- default:
- d = rb_protect(rb_inspect, obj, &state);
- if (state)
- rb_set_errinfo(Qnil);
- if (NIL_P(d)) {
- d = rb_any_to_s(obj);
- }
- singleton = (RSTRING_LEN(d) > 0 && RSTRING_PTR(d)[0] == '#');
- break;
- }
- if (!singleton) {
- s = FAKE_CSTR(&s_str, ":");
- c = rb_class_name(CLASS_OF(obj));
- }
- else {
- c = s = FAKE_CSTR(&s_str, "");
- }
- args[0] = rb_obj_as_string(ptr[NAME_ERR_MESG__NAME]);
- args[1] = d;
- args[2] = s;
- args[3] = c;
- mesg = rb_str_format(4, args, mesg);
- }
- 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:
- * name_error.receiver -> object
- *
- * Return the receiver associated with this NameError exception.
- */
- static VALUE
- name_err_receiver(VALUE self)
- {
- VALUE *ptr, recv, mesg;
- recv = rb_ivar_lookup(self, id_recv, Qundef);
- if (recv != Qundef) return recv;
- mesg = rb_attr_get(self, id_mesg);
- if (!rb_typeddata_is_kind_of(mesg, &name_err_mesg_data_type)) {
- rb_raise(rb_eArgError, "no receiver is available");
- }
- ptr = DATA_PTR(mesg);
- return ptr[NAME_ERR_MESG__RECV];
- }
- /*
- * 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, id_args);
- }
- /*
- * call-seq:
- * no_method_error.private_call? -> true or false
- *
- * Return true if the caused method was called as private.
- */
- static VALUE
- nometh_err_private_call_p(VALUE self)
- {
- return rb_attr_get(self, id_private_call_p);
- }
- 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);
- }
- /*
- * call-seq:
- * key_error.receiver -> object
- *
- * Return the receiver associated with this KeyError exception.
- */
- static VALUE
- key_err_receiver(VALUE self)
- {
- VALUE recv;
- recv = rb_ivar_lookup(self, id_receiver, Qundef);
- if (recv != Qundef) return recv;
- rb_raise(rb_eArgError, "no receiver is available");
- }
- /*
- * call-seq:
- * key_error.key -> object
- *
- * Return the key caused this KeyError exception.
- */
- static VALUE
- key_err_key(VALUE self)
- {
- VALUE key;
- key = rb_ivar_lookup(self, id_key, Qundef);
- if (key != Qundef) return key;
- rb_raise(rb_eArgError, "no key is available");
- }
- VALUE
- rb_key_err_new(VALUE mesg, VALUE recv, VALUE key)
- {
- VALUE exc = rb_obj_alloc(rb_eKeyError);
- rb_ivar_set(exc, id_mesg, mesg);
- rb_ivar_set(exc, id_bt, Qnil);
- rb_ivar_set(exc, id_key, key);
- rb_ivar_set(exc, id_receiver, recv);
- return exc;
- }
- /*
- * call-seq:
- * KeyError.new(message=nil, receiver: nil, key: nil) -> key_error
- *
- * Construct a new +KeyError+ exception with the given message,
- * receiver and key.
- */
- static VALUE
- key_err_initialize(int argc, VALUE *argv, VALUE self)
- {
- VALUE options;
- rb_call_super(rb_scan_args(argc, argv, "01:", NULL, &options), argv);
- if (!NIL_P(options)) {
- ID keywords[2];
- VALUE values[numberof(keywords)];
- int i;
- keywords[0] = id_receiver;
- keywords[1] = id_key;
- rb_get_kwargs(options, keywords, 0, numberof(values), values);
- for (i = 0; i < numberof(values); ++i) {
- if (values[i] != Qundef) {
- rb_ivar_set(self, keywords[i], values[i]);
- }
- }
- }
- return self;
- }
- /*
- * call-seq:
- * SyntaxError.new([msg]) -> syntax_error
- *
- * Construct a SyntaxError exception.
- */
- static VALUE
- syntax_error_initialize(int argc, VALUE *argv, VALUE self)
- {
- VALUE mesg;
- if (argc == 0) {
- mesg = rb_fstring_lit("compile error");
- argc = 1;
- argv = &mesg;
- }
- return rb_call_super(argc, argv);
- }
- /*
- * Document-module: Errno
- *
- * Ruby exception objects are subclasses of Exception. However,
- * operating systems typically report errors using plain
- * integers. Module Errno is created dynamically to map these
- * operating system errors to Ruby classes, with each error number
- * generating its own subclass of SystemCallError. As the subclass
- * is created in module Errno, 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 Errno classes such as Errno::EACCES,
- * Errno::EAGAIN, Errno::EINTR, 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 Errno.
- *
- * 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 defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
- 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 Errno class for that error, otherwise constructs a
- * generic SystemCallError object. The error number is subsequently
- * available via the #errno method.
- */
- static VALUE
- syserr_initialize(int argc, VALUE *argv, VALUE self)
- {
- #if !defined(_WIN32)
- char *strerror();
- #endif
- const char *err;
- VALUE mesg, error, func, errmsg;
- 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, id_Errno);
- }
- if (!NIL_P(error)) err = strerror(NUM2INT(error));
- else err = "unknown error";
- errmsg = rb_enc_str_new_cstr(err, rb_locale_encoding());
- if (!NIL_P(mesg)) {
- VALUE str = StringValue(mesg);
- if (!NIL_P(func)) rb_str_catf(errmsg, " @ %"PRIsVALUE, func);
- rb_str_catf(errmsg, " - %"PRIsVALUE, str);
- }
- mesg = errmsg;
- rb_call_super(1, &mesg);
- rb_ivar_set(self, id_errno, error);
- return self;
- }
- /*
- * call-seq:
- * system_call_error.errno -> integer
- *
- * Return this SystemCallError's error number.
- */
- static VALUE
- syserr_errno(VALUE self)
- {
- return rb_attr_get(self, id_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;
- if (!rb_obj_is_kind_of(exc, rb_eSystemCallError)) {
- if (!rb_respond_to(exc, id_errno)) return Qfalse;
- }
- else if (self == rb_eSystemCallError) return Qtrue;
- …
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