3523 lines
88 KiB
C
3523 lines
88 KiB
C
/**********************************************************************
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error.c -
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$Author$
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created at: Mon Aug 9 16:11:34 JST 1993
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Copyright (C) 1993-2007 Yukihiro Matsumoto
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**********************************************************************/
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#include "ruby/internal/config.h"
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if defined __APPLE__
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# include <AvailabilityMacros.h>
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#endif
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#include "internal.h"
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#include "internal/error.h"
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#include "internal/eval.h"
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#include "internal/hash.h"
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#include "internal/io.h"
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#include "internal/load.h"
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#include "internal/object.h"
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#include "internal/string.h"
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#include "internal/symbol.h"
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#include "internal/thread.h"
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#include "internal/variable.h"
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#include "ruby/encoding.h"
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#include "ruby/st.h"
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#include "ruby_assert.h"
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#include "vm_core.h"
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#include "builtin.h"
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/*!
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* \addtogroup exception
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* \{
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*/
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#endif
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#ifndef WIFEXITED
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#define WIFEXITED(status) 1
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#endif
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#ifndef WEXITSTATUS
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#define WEXITSTATUS(status) (status)
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#endif
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VALUE rb_iseqw_local_variables(VALUE iseqval);
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VALUE rb_iseqw_new(const rb_iseq_t *);
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int rb_str_end_with_asciichar(VALUE str, int c);
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long rb_backtrace_length_limit = -1;
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VALUE rb_eEAGAIN;
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VALUE rb_eEWOULDBLOCK;
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VALUE rb_eEINPROGRESS;
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static VALUE rb_mWarning;
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static VALUE rb_cWarningBuffer;
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static ID id_warn;
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static ID id_category;
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static ID id_deprecated;
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static ID id_experimental;
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static VALUE sym_category;
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static VALUE sym_highlight;
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static struct {
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st_table *id2enum, *enum2id;
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} warning_categories;
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extern const char *rb_dynamic_description;
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static const char *
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rb_strerrno(int err)
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{
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#define defined_error(name, num) if (err == (num)) return (name);
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#define undefined_error(name)
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#include "known_errors.inc"
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#undef defined_error
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#undef undefined_error
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return NULL;
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}
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static int
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err_position_0(char *buf, long len, const char *file, int line)
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{
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if (!file) {
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return 0;
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}
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else if (line == 0) {
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return snprintf(buf, len, "%s: ", file);
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}
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else {
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return snprintf(buf, len, "%s:%d: ", file, line);
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}
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}
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RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 5, 0)
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static VALUE
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err_vcatf(VALUE str, const char *pre, const char *file, int line,
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const char *fmt, va_list args)
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{
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if (file) {
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rb_str_cat2(str, file);
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if (line) rb_str_catf(str, ":%d", line);
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rb_str_cat2(str, ": ");
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}
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if (pre) rb_str_cat2(str, pre);
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rb_str_vcatf(str, fmt, args);
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return str;
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}
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VALUE
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rb_syntax_error_append(VALUE exc, VALUE file, int line, int column,
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rb_encoding *enc, const char *fmt, va_list args)
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{
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const char *fn = NIL_P(file) ? NULL : RSTRING_PTR(file);
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if (!exc) {
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VALUE mesg = rb_enc_str_new(0, 0, enc);
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err_vcatf(mesg, NULL, fn, line, fmt, args);
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rb_str_cat2(mesg, "\n");
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rb_write_error_str(mesg);
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}
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else {
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VALUE mesg;
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if (NIL_P(exc)) {
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mesg = rb_enc_str_new(0, 0, enc);
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exc = rb_class_new_instance(1, &mesg, rb_eSyntaxError);
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}
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else {
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mesg = rb_attr_get(exc, idMesg);
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if (RSTRING_LEN(mesg) > 0 && *(RSTRING_END(mesg)-1) != '\n')
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rb_str_cat_cstr(mesg, "\n");
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}
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err_vcatf(mesg, NULL, fn, line, fmt, args);
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}
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return exc;
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}
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static unsigned int warning_disabled_categories = (
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1U << RB_WARN_CATEGORY_DEPRECATED |
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0);
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static unsigned int
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rb_warning_category_mask(VALUE category)
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{
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return 1U << rb_warning_category_from_name(category);
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}
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rb_warning_category_t
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rb_warning_category_from_name(VALUE category)
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{
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st_data_t cat_value;
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ID cat_id;
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Check_Type(category, T_SYMBOL);
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if (!(cat_id = rb_check_id(&category)) ||
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!st_lookup(warning_categories.id2enum, cat_id, &cat_value)) {
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rb_raise(rb_eArgError, "unknown category: %"PRIsVALUE, category);
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}
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return (rb_warning_category_t)cat_value;
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}
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static VALUE
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rb_warning_category_to_name(rb_warning_category_t category)
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{
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st_data_t id;
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if (!st_lookup(warning_categories.enum2id, category, &id)) {
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rb_raise(rb_eArgError, "invalid category: %d", (int)category);
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}
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return id ? ID2SYM(id) : Qnil;
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}
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void
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rb_warning_category_update(unsigned int mask, unsigned int bits)
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{
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warning_disabled_categories &= ~mask;
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warning_disabled_categories |= mask & ~bits;
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}
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MJIT_FUNC_EXPORTED bool
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rb_warning_category_enabled_p(rb_warning_category_t category)
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{
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return !(warning_disabled_categories & (1U << category));
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}
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/*
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* call-seq:
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* Warning[category] -> true or false
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*
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* Returns the flag to show the warning messages for +category+.
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* Supported categories are:
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*
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* +:deprecated+ :: deprecation warnings
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* * assignment of non-nil value to <code>$,</code> and <code>$;</code>
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* * keyword arguments
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* * proc/lambda without block
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* etc.
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*
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* +:experimental+ :: experimental features
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* * Pattern matching
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*/
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static VALUE
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rb_warning_s_aref(VALUE mod, VALUE category)
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{
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rb_warning_category_t cat = rb_warning_category_from_name(category);
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return RBOOL(rb_warning_category_enabled_p(cat));
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}
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/*
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* call-seq:
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* Warning[category] = flag -> flag
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*
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* Sets the warning flags for +category+.
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* See Warning.[] for the categories.
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*/
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static VALUE
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rb_warning_s_aset(VALUE mod, VALUE category, VALUE flag)
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{
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unsigned int mask = rb_warning_category_mask(category);
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unsigned int disabled = warning_disabled_categories;
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if (!RTEST(flag))
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disabled |= mask;
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else
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disabled &= ~mask;
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warning_disabled_categories = disabled;
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return flag;
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}
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/*
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* call-seq:
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* warn(msg, category: nil) -> nil
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*
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* Writes warning message +msg+ to $stderr. This method is called by
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* Ruby for all emitted warnings. A +category+ may be included with
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* the warning.
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*
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* See the documentation of the Warning module for how to customize this.
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*/
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static VALUE
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rb_warning_s_warn(int argc, VALUE *argv, VALUE mod)
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{
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VALUE str;
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VALUE opt;
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VALUE category = Qnil;
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rb_scan_args(argc, argv, "1:", &str, &opt);
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if (!NIL_P(opt)) rb_get_kwargs(opt, &id_category, 0, 1, &category);
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Check_Type(str, T_STRING);
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rb_must_asciicompat(str);
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if (!NIL_P(category)) {
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rb_warning_category_t cat = rb_warning_category_from_name(category);
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if (!rb_warning_category_enabled_p(cat)) return Qnil;
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}
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rb_write_error_str(str);
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return Qnil;
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}
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/*
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* Document-module: Warning
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*
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* The Warning module contains a single method named #warn, and the
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* module extends itself, making Warning.warn available.
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* Warning.warn is called for all warnings issued by Ruby.
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* By default, warnings are printed to $stderr.
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*
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* Changing the behavior of Warning.warn is useful to customize how warnings are
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* handled by Ruby, for instance by filtering some warnings, and/or outputting
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* warnings somewhere other than $stderr.
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*
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* If you want to change the behavior of Warning.warn you should use
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* +Warning.extend(MyNewModuleWithWarnMethod)+ and you can use `super`
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* to get the default behavior of printing the warning to $stderr.
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*
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* Example:
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* module MyWarningFilter
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* def warn(message, category: nil, **kwargs)
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* if /some warning I want to ignore/.match?(message)
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* # ignore
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* else
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* super
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* end
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* end
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* end
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* Warning.extend MyWarningFilter
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*
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* You should never redefine Warning#warn (the instance method), as that will
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* then no longer provide a way to use the default behavior.
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*
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* The +warning+ gem provides convenient ways to customize Warning.warn.
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*/
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static VALUE
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rb_warning_warn(VALUE mod, VALUE str)
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{
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return rb_funcallv(mod, id_warn, 1, &str);
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}
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static int
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rb_warning_warn_arity(void)
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{
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const rb_method_entry_t *me = rb_method_entry(rb_singleton_class(rb_mWarning), id_warn);
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return me ? rb_method_entry_arity(me) : 1;
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}
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static VALUE
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rb_warn_category(VALUE str, VALUE category)
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{
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if (RUBY_DEBUG && !NIL_P(category)) {
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rb_warning_category_from_name(category);
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}
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if (rb_warning_warn_arity() == 1) {
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return rb_warning_warn(rb_mWarning, str);
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}
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else {
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VALUE args[2];
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args[0] = str;
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args[1] = rb_hash_new();
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rb_hash_aset(args[1], sym_category, category);
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return rb_funcallv_kw(rb_mWarning, id_warn, 2, args, RB_PASS_KEYWORDS);
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}
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}
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static void
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rb_write_warning_str(VALUE str)
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{
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rb_warning_warn(rb_mWarning, str);
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}
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RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 4, 0)
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static VALUE
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warn_vsprintf(rb_encoding *enc, const char *file, int line, const char *fmt, va_list args)
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{
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VALUE str = rb_enc_str_new(0, 0, enc);
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err_vcatf(str, "warning: ", file, line, fmt, args);
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return rb_str_cat2(str, "\n");
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}
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#define with_warn_vsprintf(file, line, fmt) \
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VALUE str; \
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va_list args; \
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va_start(args, fmt); \
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str = warn_vsprintf(NULL, file, line, fmt, args); \
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va_end(args);
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void
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rb_compile_warn(const char *file, int line, const char *fmt, ...)
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{
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if (!NIL_P(ruby_verbose)) {
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with_warn_vsprintf(file, line, fmt) {
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rb_write_warning_str(str);
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}
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}
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}
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/* rb_compile_warning() reports only in verbose mode */
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void
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rb_compile_warning(const char *file, int line, const char *fmt, ...)
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{
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if (RTEST(ruby_verbose)) {
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with_warn_vsprintf(file, line, fmt) {
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rb_write_warning_str(str);
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}
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}
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}
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void
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rb_category_compile_warn(rb_warning_category_t category, const char *file, int line, const char *fmt, ...)
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{
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if (!NIL_P(ruby_verbose)) {
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with_warn_vsprintf(file, line, fmt) {
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rb_warn_category(str, rb_warning_category_to_name(category));
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}
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}
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}
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RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 2, 0)
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static VALUE
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warning_string(rb_encoding *enc, const char *fmt, va_list args)
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{
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int line;
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const char *file = rb_source_location_cstr(&line);
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return warn_vsprintf(enc, file, line, fmt, args);
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}
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#define with_warning_string(mesg, enc, fmt) \
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with_warning_string_from(mesg, enc, fmt, fmt)
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#define with_warning_string_from(mesg, enc, fmt, last_arg) \
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VALUE mesg; \
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va_list args; va_start(args, last_arg); \
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mesg = warning_string(enc, fmt, args); \
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va_end(args);
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void
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rb_warn(const char *fmt, ...)
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{
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if (!NIL_P(ruby_verbose)) {
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with_warning_string(mesg, 0, fmt) {
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rb_write_warning_str(mesg);
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}
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}
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}
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void
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rb_category_warn(rb_warning_category_t category, const char *fmt, ...)
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{
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if (!NIL_P(ruby_verbose)) {
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with_warning_string(mesg, 0, fmt) {
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rb_warn_category(mesg, rb_warning_category_to_name(category));
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}
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}
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}
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void
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rb_enc_warn(rb_encoding *enc, const char *fmt, ...)
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{
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if (!NIL_P(ruby_verbose)) {
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with_warning_string(mesg, enc, fmt) {
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rb_write_warning_str(mesg);
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}
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}
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}
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/* rb_warning() reports only in verbose mode */
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void
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rb_warning(const char *fmt, ...)
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{
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if (RTEST(ruby_verbose)) {
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with_warning_string(mesg, 0, fmt) {
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rb_write_warning_str(mesg);
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}
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}
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}
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/* rb_category_warning() reports only in verbose mode */
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void
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rb_category_warning(rb_warning_category_t category, const char *fmt, ...)
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{
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if (RTEST(ruby_verbose)) {
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with_warning_string(mesg, 0, fmt) {
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rb_warn_category(mesg, rb_warning_category_to_name(category));
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}
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}
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}
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VALUE
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rb_warning_string(const char *fmt, ...)
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{
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with_warning_string(mesg, 0, fmt) {
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}
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return mesg;
|
|
}
|
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|
|
#if 0
|
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void
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rb_enc_warning(rb_encoding *enc, const char *fmt, ...)
|
|
{
|
|
if (RTEST(ruby_verbose)) {
|
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with_warning_string(mesg, enc, fmt) {
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rb_write_warning_str(mesg);
|
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}
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}
|
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}
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#endif
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|
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static bool
|
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deprecation_warning_enabled(void)
|
|
{
|
|
if (NIL_P(ruby_verbose)) return false;
|
|
if (!rb_warning_category_enabled_p(RB_WARN_CATEGORY_DEPRECATED)) return false;
|
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return true;
|
|
}
|
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|
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static void
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warn_deprecated(VALUE mesg, const char *removal, const char *suggest)
|
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{
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|
rb_str_set_len(mesg, RSTRING_LEN(mesg) - 1);
|
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rb_str_cat_cstr(mesg, " is deprecated");
|
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if (removal) {
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rb_str_catf(mesg, " and will be removed in Ruby %s", removal);
|
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}
|
|
if (suggest) rb_str_catf(mesg, "; use %s instead", suggest);
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rb_str_cat_cstr(mesg, "\n");
|
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rb_warn_category(mesg, ID2SYM(id_deprecated));
|
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}
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|
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void
|
|
rb_warn_deprecated(const char *fmt, const char *suggest, ...)
|
|
{
|
|
if (!deprecation_warning_enabled()) return;
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|
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with_warning_string_from(mesg, 0, fmt, suggest) {
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warn_deprecated(mesg, NULL, suggest);
|
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}
|
|
}
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|
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void
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rb_warn_deprecated_to_remove(const char *removal, const char *fmt, const char *suggest, ...)
|
|
{
|
|
if (!deprecation_warning_enabled()) return;
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|
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with_warning_string_from(mesg, 0, fmt, suggest) {
|
|
warn_deprecated(mesg, removal, suggest);
|
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}
|
|
}
|
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|
|
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;
|
|
}
|
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|
|
VALUE rb_ec_backtrace_location_ary(const rb_execution_context_t *ec, long lev, long n, bool skip_internal);
|
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|
|
static VALUE
|
|
rb_warn_m(rb_execution_context_t *ec, VALUE exc, VALUE msgs, VALUE uplevel, VALUE category)
|
|
{
|
|
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, TRUE);
|
|
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 (!NIL_P(category)) {
|
|
category = rb_to_symbol_type(category);
|
|
rb_warning_category_from_name(category);
|
|
}
|
|
|
|
if (exc == rb_mWarning) {
|
|
rb_must_asciicompat(str);
|
|
rb_write_error_str(str);
|
|
}
|
|
else {
|
|
rb_warn_category(str, category);
|
|
}
|
|
}
|
|
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);
|
|
}
|
|
|
|
#undef CRASH_REPORTER_MAY_BE_CREATED
|
|
#if defined(__APPLE__) && \
|
|
(!defined(MAC_OS_X_VERSION_10_6) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6 || defined(__POWERPC__)) /* 10.6 PPC case */
|
|
# define CRASH_REPORTER_MAY_BE_CREATED
|
|
#endif
|
|
static void
|
|
preface_dump(FILE *out)
|
|
{
|
|
#if defined __APPLE__
|
|
static const char msg[] = ""
|
|
"-- Crash Report log information "
|
|
"--------------------------------------------\n"
|
|
" See Crash Report log file in one of the following locations:\n"
|
|
# ifdef CRASH_REPORTER_MAY_BE_CREATED
|
|
" * ~/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"
|
|
# ifdef CRASH_REPORTER_MAY_BE_CREATED
|
|
"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);
|
|
}
|
|
|
|
RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 2, 0)
|
|
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", rb_dynamic_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();
|
|
}
|
|
|
|
RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 1, 0)
|
|
void
|
|
rb_bug_without_die(const char *fmt, va_list args)
|
|
{
|
|
const char *file = NULL;
|
|
int line = 0;
|
|
|
|
if (GET_EC()) {
|
|
file = rb_source_location_cstr(&line);
|
|
}
|
|
|
|
report_bug_valist(file, line, fmt, NULL, args);
|
|
}
|
|
|
|
void
|
|
rb_bug(const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
rb_bug_without_die(fmt, args);
|
|
va_end(args);
|
|
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, rb_dynamic_description, strlen(rb_dynamic_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, rb_dynamic_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",
|
|
"Integer",
|
|
"File",
|
|
"Data", /* internal use: wrapped C pointers */
|
|
"MatchData", /* data of $~ */
|
|
"Complex",
|
|
"Rational",
|
|
"", /* 0x10 */
|
|
"nil",
|
|
"true",
|
|
"false",
|
|
"Symbol", /* :symbol */
|
|
"Integer",
|
|
"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 VALUE
|
|
displaying_class_of(VALUE x)
|
|
{
|
|
switch (x) {
|
|
case Qfalse: return rb_fstring_cstr("false");
|
|
case Qnil: return rb_fstring_cstr("nil");
|
|
case Qtrue: return rb_fstring_cstr("true");
|
|
default: return rb_obj_class(x);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
COLDFUNC 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) {
|
|
mesg = rb_sprintf("wrong argument type %"PRIsVALUE" (expected %s)",
|
|
displaying_class_of(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 (RB_UNLIKELY(x == Qundef)) {
|
|
rb_bug(UNDEF_LEAKED);
|
|
}
|
|
|
|
xt = TYPE(x);
|
|
if (xt != t || (xt == T_DATA && rbimpl_rtypeddata_p(x))) {
|
|
/*
|
|
* Typed data is not simple `T_DATA`, but in a sense an
|
|
* extension of `struct RVALUE`, which are incompatible with
|
|
* each other except when inherited.
|
|
*
|
|
* So it is not enough to just check `T_DATA`, it must be
|
|
* identified by its `type` using `Check_TypedStruct` instead.
|
|
*/
|
|
unexpected_type(x, xt, t);
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_unexpected_type(VALUE x, int t)
|
|
{
|
|
if (RB_UNLIKELY(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)
|
|
{
|
|
VALUE actual;
|
|
|
|
if (!RB_TYPE_P(obj, T_DATA)) {
|
|
actual = displaying_class_of(obj);
|
|
}
|
|
else if (!RTYPEDDATA_P(obj)) {
|
|
actual = displaying_class_of(obj);
|
|
}
|
|
else if (!rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) {
|
|
const char *name = RTYPEDDATA_TYPE(obj)->wrap_struct_name;
|
|
actual = rb_str_new_cstr(name); /* or rb_fstring_cstr? not sure... */
|
|
}
|
|
else {
|
|
return DATA_PTR(obj);
|
|
}
|
|
|
|
const char *expected = data_type->wrap_struct_name;
|
|
rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE" (expected %s)",
|
|
actual, expected);
|
|
UNREACHABLE_RETURN(NULL);
|
|
}
|
|
|
|
/* 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_eNoMatchingPatternKeyError;
|
|
|
|
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_detailed_message, id_backtrace;
|
|
static ID id_key, id_matchee, 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
|
|
* Exception.exception(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 opt, 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;
|
|
}
|
|
|
|
VALUE
|
|
rb_get_detailed_message(VALUE exc, VALUE opt)
|
|
{
|
|
VALUE e;
|
|
if (NIL_P(opt)) {
|
|
e = rb_check_funcall(exc, id_detailed_message, 0, 0);
|
|
}
|
|
else {
|
|
e = rb_check_funcall_kw(exc, id_detailed_message, 1, &opt, 1);
|
|
}
|
|
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 RBOOL(rb_stderr_tty_p());
|
|
}
|
|
|
|
static VALUE
|
|
check_highlight_keyword(VALUE opt, int auto_tty_detect)
|
|
{
|
|
VALUE highlight = Qnil;
|
|
|
|
if (!NIL_P(opt)) {
|
|
highlight = rb_hash_lookup(opt, sym_highlight);
|
|
|
|
switch (highlight) {
|
|
default:
|
|
rb_bool_expected(highlight, "highlight", TRUE);
|
|
UNREACHABLE;
|
|
case Qtrue: case Qfalse: case Qnil: break;
|
|
}
|
|
}
|
|
|
|
if (NIL_P(highlight)) {
|
|
highlight = RBOOL(auto_tty_detect && rb_stderr_tty_p());
|
|
}
|
|
|
|
return highlight;
|
|
}
|
|
|
|
static VALUE
|
|
check_order_keyword(VALUE opt)
|
|
{
|
|
VALUE order = Qnil;
|
|
|
|
if (!NIL_P(opt)) {
|
|
static VALUE kw_order;
|
|
if (!kw_order) kw_order = ID2SYM(rb_intern_const("order"));
|
|
|
|
order = rb_hash_lookup(opt, kw_order);
|
|
|
|
if (order != Qnil) {
|
|
ID id = rb_check_id(&order);
|
|
if (id == id_bottom) order = Qtrue;
|
|
else if (id == id_top) order = Qfalse;
|
|
else {
|
|
rb_raise(rb_eArgError, "expected :top or :bottom as "
|
|
"order: %+"PRIsVALUE, order);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (NIL_P(order)) order = Qfalse;
|
|
|
|
return order;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
VALUE highlight, order;
|
|
|
|
rb_scan_args(argc, argv, "0:", &opt);
|
|
|
|
highlight = check_highlight_keyword(opt, 1);
|
|
order = check_order_keyword(opt);
|
|
|
|
{
|
|
if (NIL_P(opt)) opt = rb_hash_new();
|
|
rb_hash_aset(opt, sym_highlight, highlight);
|
|
}
|
|
|
|
str = rb_str_new2("");
|
|
errat = rb_get_backtrace(exc);
|
|
emesg = rb_get_detailed_message(exc, opt);
|
|
|
|
rb_error_write(exc, emesg, errat, str, opt, highlight, 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.detailed_message(highlight: bool, **opt) -> string
|
|
*
|
|
* Processes a string returned by #message.
|
|
*
|
|
* It may add the class name of the exception to the end of the first line.
|
|
* Also, when +highlight+ keyword is true, it adds ANSI escape sequences to
|
|
* make the message bold.
|
|
*
|
|
* If you override this method, it must be tolerant for unknown keyword
|
|
* arguments. All keyword arguments passed to #full_message are delegated
|
|
* to this method.
|
|
*
|
|
* This method is overridden by did_you_mean and error_highlight to add
|
|
* their information.
|
|
*
|
|
* A user-defined exception class can also define their own
|
|
* +detailed_message+ method to add supplemental information.
|
|
* When +highlight+ is true, it can return a string containing escape
|
|
* sequences, but use widely-supported ones. It is recommended to limit
|
|
* the following codes:
|
|
*
|
|
* - Reset (+\e[0m+)
|
|
* - Bold (+\e[1m+)
|
|
* - Underline (+\e[4m+)
|
|
* - Foreground color except white and black
|
|
* - Red (+\e[31m+)
|
|
* - Green (+\e[32m+)
|
|
* - Yellow (+\e[33m+)
|
|
* - Blue (+\e[34m+)
|
|
* - Magenta (+\e[35m+)
|
|
* - Cyan (+\e[36m+)
|
|
*
|
|
* Use escape sequences carefully even if +highlight+ is true.
|
|
* Do not use escape sequences to express essential information;
|
|
* the message should be readable even if all escape sequences are
|
|
* ignored.
|
|
*/
|
|
|
|
static VALUE
|
|
exc_detailed_message(int argc, VALUE *argv, VALUE exc)
|
|
{
|
|
VALUE opt;
|
|
|
|
rb_scan_args(argc, argv, "0:", &opt);
|
|
|
|
VALUE highlight = check_highlight_keyword(opt, 0);
|
|
|
|
extern VALUE rb_decorate_message(const VALUE eclass, const VALUE emesg, int highlight);
|
|
|
|
return rb_decorate_message(CLASS_OF(exc), rb_get_message(exc), RTEST(highlight));
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
|
|
if (RTEST(rb_str_include(exc, rb_str_new2("\n")))) {
|
|
rb_str_catf(str, ":%+"PRIsVALUE, exc);
|
|
}
|
|
else {
|
|
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;
|
|
return rb_equal(exc_backtrace(exc), backtrace);
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
return RBOOL(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
|
|
}
|
|
|
|
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, RBOOL(priv));
|
|
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_init(VALUE klass, VALUE mesg, VALUE recv, VALUE method)
|
|
{
|
|
VALUE result = TypedData_Wrap_Struct(klass, &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
|
|
rb_name_err_mesg_new(VALUE mesg, VALUE recv, VALUE method)
|
|
{
|
|
return rb_name_err_mesg_init(rb_cNameErrorMesg, mesg, recv, method);
|
|
}
|
|
|
|
/* :nodoc: */
|
|
static VALUE
|
|
name_err_mesg_alloc(VALUE klass)
|
|
{
|
|
return rb_name_err_mesg_init(klass, Qnil, Qnil, Qnil);
|
|
}
|
|
|
|
/* :nodoc: */
|
|
static VALUE
|
|
name_err_mesg_init_copy(VALUE obj1, VALUE obj2)
|
|
{
|
|
VALUE *ptr1, *ptr2;
|
|
|
|
if (obj1 == obj2) return obj1;
|
|
rb_obj_init_copy(obj1, obj2);
|
|
|
|
TypedData_Get_Struct(obj1, VALUE, &name_err_mesg_data_type, ptr1);
|
|
TypedData_Get_Struct(obj2, VALUE, &name_err_mesg_data_type, ptr2);
|
|
MEMCPY(ptr1, ptr2, VALUE, NAME_ERR_MESG_COUNT);
|
|
return obj1;
|
|
}
|
|
|
|
/* :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_receiver_name(VALUE obj)
|
|
{
|
|
if (RB_SPECIAL_CONST_P(obj)) return Qundef;
|
|
if (RB_BUILTIN_TYPE(obj) == T_MODULE || RB_BUILTIN_TYPE(obj) == T_CLASS) {
|
|
return rb_check_funcall(obj, rb_intern("name"), 0, 0);
|
|
}
|
|
return Qundef;
|
|
}
|
|
|
|
/* :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(name_err_mesg_receiver_name, obj, &state);
|
|
if (state || d == Qundef || NIL_P(d))
|
|
d = rb_protect(rb_inspect, obj, &state);
|
|
if (state) {
|
|
rb_set_errinfo(Qnil);
|
|
}
|
|
d = rb_check_string_type(d);
|
|
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:
|
|
* no_matching_pattern_key_error.matchee -> object
|
|
*
|
|
* Return the matchee associated with this NoMatchingPatternKeyError exception.
|
|
*/
|
|
|
|
static VALUE
|
|
no_matching_pattern_key_err_matchee(VALUE self)
|
|
{
|
|
VALUE matchee;
|
|
|
|
matchee = rb_ivar_lookup(self, id_matchee, Qundef);
|
|
if (matchee != Qundef) return matchee;
|
|
rb_raise(rb_eArgError, "no matchee is available");
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* no_matching_pattern_key_error.key -> object
|
|
*
|
|
* Return the key caused this NoMatchingPatternKeyError exception.
|
|
*/
|
|
|
|
static VALUE
|
|
no_matching_pattern_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");
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* NoMatchingPatternKeyError.new(message=nil, matchee: nil, key: nil) -> no_matching_pattern_key_error
|
|
*
|
|
* Construct a new +NoMatchingPatternKeyError+ exception with the given message,
|
|
* matchee and key.
|
|
*/
|
|
|
|
static VALUE
|
|
no_matching_pattern_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_matchee;
|
|
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)
|
|
{
|
|
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;
|
|
|
|
num = rb_attr_get(exc, id_errno);
|
|
if (NIL_P(num)) {
|
|
num = rb_funcallv(exc, id_errno, 0, 0);
|
|
}
|
|
e = rb_const_get(self, id_Errno);
|
|
return RBOOL(FIXNUM_P(num) ? num == e : rb_equal(num, e));
|
|
}
|
|
|
|
|
|
/*
|
|
* Document-class: StandardError
|
|
*
|
|
* The most standard error types are subclasses of StandardError. A
|
|
* rescue clause without an explicit Exception class will rescue all
|
|
* StandardErrors (and only those).
|
|
*
|
|
* def foo
|
|
* raise "Oups"
|
|
* end
|
|
* foo rescue "Hello" #=> "Hello"
|
|
*
|
|
* On the other hand:
|
|
*
|
|
* require 'does/not/exist' rescue "Hi"
|
|
*
|
|
* <em>raises the exception:</em>
|
|
*
|
|
* LoadError: no such file to load -- does/not/exist
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Document-class: SystemExit
|
|
*
|
|
* Raised by +exit+ to initiate the termination of the script.
|
|
*/
|
|
|
|
/*
|
|
* Document-class: SignalException
|
|
*
|
|
* Raised when a signal is received.
|
|
*
|
|
* begin
|
|
* Process.kill('HUP',Process.pid)
|
|
* sleep # wait for receiver to handle signal sent by Process.kill
|
|
* rescue SignalException => e
|
|
* puts "received Exception #{e}"
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* received Exception SIGHUP
|
|
*/
|
|
|
|
/*
|
|
* Document-class: Interrupt
|
|
*
|
|
* Raised when the interrupt signal is received, typically because the
|
|
* user has pressed Control-C (on most posix platforms). As such, it is a
|
|
* subclass of +SignalException+.
|
|
*
|
|
* begin
|
|
* puts "Press ctrl-C when you get bored"
|
|
* loop {}
|
|
* rescue Interrupt => e
|
|
* puts "Note: You will typically use Signal.trap instead."
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Press ctrl-C when you get bored
|
|
*
|
|
* <em>then waits until it is interrupted with Control-C and then prints:</em>
|
|
*
|
|
* Note: You will typically use Signal.trap instead.
|
|
*/
|
|
|
|
/*
|
|
* Document-class: TypeError
|
|
*
|
|
* Raised when encountering an object that is not of the expected type.
|
|
*
|
|
* [1, 2, 3].first("two")
|
|
*
|
|
* <em>raises the exception:</em>
|
|
*
|
|
* TypeError: no implicit conversion of String into Integer
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Document-class: ArgumentError
|
|
*
|
|
* Raised when the arguments are wrong and there isn't a more specific
|
|
* Exception class.
|
|
*
|
|
* Ex: passing the wrong number of arguments
|
|
*
|
|
* [1, 2, 3].first(4, 5)
|
|
*
|
|
* <em>raises the exception:</em>
|
|
*
|
|
* ArgumentError: wrong number of arguments (given 2, expected 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:
|
|
*
|
|
* Integer.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: FrozenError
|
|
*
|
|
* Raised when there is an attempt to modify a frozen object.
|
|
*
|
|
* [1, 2, 3].freeze << 4
|
|
*
|
|
* <em>raises the exception:</em>
|
|
*
|
|
* FrozenError: can't modify frozen Array
|
|
*/
|
|
|
|
/*
|
|
* Document-class: RuntimeError
|
|
*
|
|
* A generic error class raised when an invalid operation is attempted.
|
|
* Kernel#raise will raise a RuntimeError if no Exception class is
|
|
* specified.
|
|
*
|
|
* raise "ouch"
|
|
*
|
|
* <em>raises the exception:</em>
|
|
*
|
|
* RuntimeError: ouch
|
|
*/
|
|
|
|
/*
|
|
* Document-class: SecurityError
|
|
*
|
|
* No longer used by internal code.
|
|
*/
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Document-class: NameError::message
|
|
* :nodoc:
|
|
*/
|
|
|
|
/*
|
|
* Document-class: Exception
|
|
*
|
|
* \Class Exception and its subclasses are used to communicate between
|
|
* Kernel#raise and +rescue+ statements in <code>begin ... end</code> blocks.
|
|
*
|
|
* An Exception object carries information about an exception:
|
|
* - Its type (the exception's class).
|
|
* - An optional descriptive message.
|
|
* - Optional backtrace information.
|
|
*
|
|
* Some built-in subclasses of Exception have additional methods: e.g., NameError#name.
|
|
*
|
|
* == Defaults
|
|
*
|
|
* Two Ruby statements have default exception classes:
|
|
* - +raise+: defaults to RuntimeError.
|
|
* - +rescue+: defaults to StandardError.
|
|
*
|
|
* == Global Variables
|
|
*
|
|
* When an exception has been raised but not yet handled (in +rescue+,
|
|
* +ensure+, +at_exit+ and +END+ blocks), two global variables are set:
|
|
* - <code>$!</code> contains the current exception.
|
|
* - <code>$@</code> contains its backtrace.
|
|
*
|
|
* == Custom Exceptions
|
|
*
|
|
* To provide additional or alternate information,
|
|
* a program may create custom exception classes
|
|
* that derive from the built-in exception classes.
|
|
*
|
|
* A good practice is for a library to create a single "generic" exception class
|
|
* (typically a subclass of StandardError or RuntimeError)
|
|
* and have its other exception classes derive from that class.
|
|
* This allows the user to rescue the generic exception, thus catching all exceptions
|
|
* the library may raise even if future versions of the library add new
|
|
* exception subclasses.
|
|
*
|
|
* For example:
|
|
*
|
|
* class MyLibrary
|
|
* class Error < ::StandardError
|
|
* end
|
|
*
|
|
* class WidgetError < Error
|
|
* end
|
|
*
|
|
* class FrobError < Error
|
|
* end
|
|
*
|
|
* end
|
|
*
|
|
* To handle both MyLibrary::WidgetError and MyLibrary::FrobError the library
|
|
* user can rescue MyLibrary::Error.
|
|
*
|
|
* == Built-In Exception Classes
|
|
*
|
|
* The built-in subclasses of Exception are:
|
|
*
|
|
* * NoMemoryError
|
|
* * ScriptError
|
|
* * LoadError
|
|
* * NotImplementedError
|
|
* * SyntaxError
|
|
* * SecurityError
|
|
* * SignalException
|
|
* * Interrupt
|
|
* * StandardError
|
|
* * ArgumentError
|
|
* * UncaughtThrowError
|
|
* * EncodingError
|
|
* * FiberError
|
|
* * IOError
|
|
* * EOFError
|
|
* * IndexError
|
|
* * KeyError
|
|
* * StopIteration
|
|
* * ClosedQueueError
|
|
* * LocalJumpError
|
|
* * NameError
|
|
* * NoMethodError
|
|
* * RangeError
|
|
* * FloatDomainError
|
|
* * RegexpError
|
|
* * RuntimeError
|
|
* * FrozenError
|
|
* * SystemCallError
|
|
* * Errno::*
|
|
* * ThreadError
|
|
* * TypeError
|
|
* * ZeroDivisionError
|
|
* * SystemExit
|
|
* * SystemStackError
|
|
* * fatal
|
|
*/
|
|
|
|
static VALUE
|
|
exception_alloc(VALUE klass)
|
|
{
|
|
return rb_class_allocate_instance(klass);
|
|
}
|
|
|
|
static VALUE
|
|
exception_dumper(VALUE exc)
|
|
{
|
|
// TODO: Currently, the instance variables "bt" and "bt_locations"
|
|
// refers to the same object (Array of String). But "bt_locations"
|
|
// should have an Array of Thread::Backtrace::Locations.
|
|
|
|
return exc;
|
|
}
|
|
|
|
static int
|
|
ivar_copy_i(st_data_t key, st_data_t val, st_data_t exc)
|
|
{
|
|
rb_ivar_set((VALUE) exc, (ID) key, (VALUE) val);
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
exception_loader(VALUE exc, VALUE obj)
|
|
{
|
|
// The loader function of rb_marshal_define_compat seems to be called for two events:
|
|
// one is for fixup (r_fixup_compat), the other is for TYPE_USERDEF.
|
|
// In the former case, the first argument is an instance of Exception (because
|
|
// we pass rb_eException to rb_marshal_define_compat). In the latter case, the first
|
|
// argument is a class object (see TYPE_USERDEF case in r_object0).
|
|
// We want to copy all instance variables (but "bt_locations") from obj to exc.
|
|
// But we do not want to do so in the second case, so the following branch is for that.
|
|
if (RB_TYPE_P(exc, T_CLASS)) return obj; // maybe called from Marshal's TYPE_USERDEF
|
|
|
|
rb_ivar_foreach(obj, ivar_copy_i, exc);
|
|
|
|
if (rb_attr_get(exc, id_bt) == rb_attr_get(exc, id_bt_locations)) {
|
|
rb_ivar_set(exc, id_bt_locations, Qnil);
|
|
}
|
|
|
|
return exc;
|
|
}
|
|
|
|
void
|
|
Init_Exception(void)
|
|
{
|
|
rb_eException = rb_define_class("Exception", rb_cObject);
|
|
rb_define_alloc_func(rb_eException, exception_alloc);
|
|
rb_marshal_define_compat(rb_eException, rb_eException, exception_dumper, exception_loader);
|
|
rb_define_singleton_method(rb_eException, "exception", rb_class_new_instance, -1);
|
|
rb_define_singleton_method(rb_eException, "to_tty?", exc_s_to_tty_p, 0);
|
|
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, "detailed_message", exc_detailed_message, -1);
|
|
rb_define_method(rb_eException, "full_message", exc_full_message, -1);
|
|
rb_define_method(rb_eException, "inspect", exc_inspect, 0);
|
|
rb_define_method(rb_eException, "backtrace", exc_backtrace, 0);
|
|
rb_define_method(rb_eException, "backtrace_locations", exc_backtrace_locations, 0);
|
|
rb_define_method(rb_eException, "set_backtrace", exc_set_backtrace, 1);
|
|
rb_define_method(rb_eException, "cause", exc_cause, 0);
|
|
|
|
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_define_method(rb_eKeyError, "initialize", key_err_initialize, -1);
|
|
rb_define_method(rb_eKeyError, "receiver", key_err_receiver, 0);
|
|
rb_define_method(rb_eKeyError, "key", key_err_key, 0);
|
|
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_define_method(rb_eSyntaxError, "initialize", syntax_error_initialize, -1);
|
|
|
|
rb_eLoadError = rb_define_class("LoadError", rb_eScriptError);
|
|
/* the path failed to load */
|
|
rb_attr(rb_eLoadError, rb_intern_const("path"), TRUE, FALSE, FALSE);
|
|
|
|
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, "receiver", name_err_receiver, 0);
|
|
rb_define_method(rb_eNameError, "local_variables", name_err_local_variables, 0);
|
|
rb_cNameErrorMesg = rb_define_class_under(rb_eNameError, "message", rb_cObject);
|
|
rb_define_alloc_func(rb_cNameErrorMesg, name_err_mesg_alloc);
|
|
rb_define_method(rb_cNameErrorMesg, "initialize_copy", name_err_mesg_init_copy, 1);
|
|
rb_define_method(rb_cNameErrorMesg, "==", name_err_mesg_equal, 1);
|
|
rb_define_method(rb_cNameErrorMesg, "to_str", name_err_mesg_to_str, 0);
|
|
rb_define_method(rb_cNameErrorMesg, "_dump", name_err_mesg_dump, 1);
|
|
rb_define_singleton_method(rb_cNameErrorMesg, "_load", name_err_mesg_load, 1);
|
|
rb_eNoMethodError = rb_define_class("NoMethodError", rb_eNameError);
|
|
rb_define_method(rb_eNoMethodError, "initialize", nometh_err_initialize, -1);
|
|
rb_define_method(rb_eNoMethodError, "args", nometh_err_args, 0);
|
|
rb_define_method(rb_eNoMethodError, "private_call?", nometh_err_private_call_p, 0);
|
|
|
|
rb_eRuntimeError = rb_define_class("RuntimeError", rb_eStandardError);
|
|
rb_eFrozenError = rb_define_class("FrozenError", rb_eRuntimeError);
|
|
rb_define_method(rb_eFrozenError, "initialize", frozen_err_initialize, -1);
|
|
rb_define_method(rb_eFrozenError, "receiver", frozen_err_receiver, 0);
|
|
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);
|
|
rb_eNoMatchingPatternError = rb_define_class("NoMatchingPatternError", rb_eStandardError);
|
|
rb_eNoMatchingPatternKeyError = rb_define_class("NoMatchingPatternKeyError", rb_eNoMatchingPatternError);
|
|
rb_define_method(rb_eNoMatchingPatternKeyError, "initialize", no_matching_pattern_key_err_initialize, -1);
|
|
rb_define_method(rb_eNoMatchingPatternKeyError, "matchee", no_matching_pattern_key_err_matchee, 0);
|
|
rb_define_method(rb_eNoMatchingPatternKeyError, "key", no_matching_pattern_key_err_key, 0);
|
|
|
|
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_mWarning = rb_define_module("Warning");
|
|
rb_define_singleton_method(rb_mWarning, "[]", rb_warning_s_aref, 1);
|
|
rb_define_singleton_method(rb_mWarning, "[]=", rb_warning_s_aset, 2);
|
|
rb_define_method(rb_mWarning, "warn", rb_warning_s_warn, -1);
|
|
rb_extend_object(rb_mWarning, rb_mWarning);
|
|
|
|
/* :nodoc: */
|
|
rb_cWarningBuffer = rb_define_class_under(rb_mWarning, "buffer", rb_cString);
|
|
rb_define_method(rb_cWarningBuffer, "write", warning_write, -1);
|
|
|
|
id_cause = rb_intern_const("cause");
|
|
id_message = rb_intern_const("message");
|
|
id_detailed_message = rb_intern_const("detailed_message");
|
|
id_backtrace = rb_intern_const("backtrace");
|
|
id_key = rb_intern_const("key");
|
|
id_matchee = rb_intern_const("matchee");
|
|
id_args = rb_intern_const("args");
|
|
id_receiver = rb_intern_const("receiver");
|
|
id_private_call_p = rb_intern_const("private_call?");
|
|
id_local_variables = rb_intern_const("local_variables");
|
|
id_Errno = rb_intern_const("Errno");
|
|
id_errno = rb_intern_const("errno");
|
|
id_i_path = rb_intern_const("@path");
|
|
id_warn = rb_intern_const("warn");
|
|
id_category = rb_intern_const("category");
|
|
id_deprecated = rb_intern_const("deprecated");
|
|
id_experimental = rb_intern_const("experimental");
|
|
id_top = rb_intern_const("top");
|
|
id_bottom = rb_intern_const("bottom");
|
|
id_iseq = rb_make_internal_id();
|
|
id_recv = rb_make_internal_id();
|
|
|
|
sym_category = ID2SYM(id_category);
|
|
sym_highlight = ID2SYM(rb_intern_const("highlight"));
|
|
|
|
warning_categories.id2enum = rb_init_identtable();
|
|
st_add_direct(warning_categories.id2enum, id_deprecated, RB_WARN_CATEGORY_DEPRECATED);
|
|
st_add_direct(warning_categories.id2enum, id_experimental, RB_WARN_CATEGORY_EXPERIMENTAL);
|
|
|
|
warning_categories.enum2id = rb_init_identtable();
|
|
st_add_direct(warning_categories.enum2id, RB_WARN_CATEGORY_NONE, 0);
|
|
st_add_direct(warning_categories.enum2id, RB_WARN_CATEGORY_DEPRECATED, id_deprecated);
|
|
st_add_direct(warning_categories.enum2id, RB_WARN_CATEGORY_EXPERIMENTAL, id_experimental);
|
|
}
|
|
|
|
void
|
|
rb_enc_raise(rb_encoding *enc, VALUE exc, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
VALUE mesg;
|
|
|
|
va_start(args, fmt);
|
|
mesg = rb_enc_vsprintf(enc, fmt, args);
|
|
va_end(args);
|
|
|
|
rb_exc_raise(rb_exc_new3(exc, mesg));
|
|
}
|
|
|
|
void
|
|
rb_vraise(VALUE exc, const char *fmt, va_list ap)
|
|
{
|
|
rb_exc_raise(rb_exc_new3(exc, rb_vsprintf(fmt, ap)));
|
|
}
|
|
|
|
void
|
|
rb_raise(VALUE exc, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
rb_vraise(exc, fmt, args);
|
|
va_end(args);
|
|
}
|
|
|
|
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, id_i_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,
|
|
"%"PRIsVALUE"() function is unimplemented on this machine",
|
|
rb_id2str(rb_frame_this_func()));
|
|
}
|
|
|
|
void
|
|
rb_fatal(const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
VALUE mesg;
|
|
|
|
if (! ruby_thread_has_gvl_p()) {
|
|
/* The thread has no GVL. Object allocation impossible (cant run GC),
|
|
* thus no message can be printed out. */
|
|
fprintf(stderr, "[FATAL] rb_fatal() outside of GVL\n");
|
|
rb_print_backtrace();
|
|
die();
|
|
}
|
|
|
|
va_start(args, fmt);
|
|
mesg = rb_vsprintf(fmt, args);
|
|
va_end(args);
|
|
|
|
rb_exc_fatal(rb_exc_new3(rb_eFatal, mesg));
|
|
}
|
|
|
|
static VALUE
|
|
make_errno_exc(const char *mesg)
|
|
{
|
|
int n = errno;
|
|
|
|
errno = 0;
|
|
if (n == 0) {
|
|
rb_bug("rb_sys_fail(%s) - errno == 0", mesg ? mesg : "");
|
|
}
|
|
return rb_syserr_new(n, mesg);
|
|
}
|
|
|
|
static VALUE
|
|
make_errno_exc_str(VALUE mesg)
|
|
{
|
|
int n = errno;
|
|
|
|
errno = 0;
|
|
if (!mesg) mesg = Qnil;
|
|
if (n == 0) {
|
|
const char *s = !NIL_P(mesg) ? RSTRING_PTR(mesg) : "";
|
|
rb_bug("rb_sys_fail_str(%s) - errno == 0", s);
|
|
}
|
|
return rb_syserr_new_str(n, mesg);
|
|
}
|
|
|
|
VALUE
|
|
rb_syserr_new(int n, const char *mesg)
|
|
{
|
|
VALUE arg;
|
|
arg = mesg ? rb_str_new2(mesg) : Qnil;
|
|
return rb_syserr_new_str(n, arg);
|
|
}
|
|
|
|
VALUE
|
|
rb_syserr_new_str(int n, VALUE arg)
|
|
{
|
|
return rb_class_new_instance(1, &arg, get_syserr(n));
|
|
}
|
|
|
|
void
|
|
rb_syserr_fail(int e, const char *mesg)
|
|
{
|
|
rb_exc_raise(rb_syserr_new(e, mesg));
|
|
}
|
|
|
|
void
|
|
rb_syserr_fail_str(int e, VALUE mesg)
|
|
{
|
|
rb_exc_raise(rb_syserr_new_str(e, mesg));
|
|
}
|
|
|
|
void
|
|
rb_sys_fail(const char *mesg)
|
|
{
|
|
rb_exc_raise(make_errno_exc(mesg));
|
|
}
|
|
|
|
void
|
|
rb_sys_fail_str(VALUE mesg)
|
|
{
|
|
rb_exc_raise(make_errno_exc_str(mesg));
|
|
}
|
|
|
|
#ifdef RUBY_FUNCTION_NAME_STRING
|
|
void
|
|
rb_sys_fail_path_in(const char *func_name, VALUE path)
|
|
{
|
|
int n = errno;
|
|
|
|
errno = 0;
|
|
rb_syserr_fail_path_in(func_name, n, path);
|
|
}
|
|
|
|
void
|
|
rb_syserr_fail_path_in(const char *func_name, int n, VALUE path)
|
|
{
|
|
rb_exc_raise(rb_syserr_new_path_in(func_name, n, path));
|
|
}
|
|
|
|
VALUE
|
|
rb_syserr_new_path_in(const char *func_name, int n, VALUE path)
|
|
{
|
|
VALUE args[2];
|
|
|
|
if (!path) path = Qnil;
|
|
if (n == 0) {
|
|
const char *s = !NIL_P(path) ? RSTRING_PTR(path) : "";
|
|
if (!func_name) func_name = "(null)";
|
|
rb_bug("rb_sys_fail_path_in(%s, %s) - errno == 0",
|
|
func_name, s);
|
|
}
|
|
args[0] = path;
|
|
args[1] = rb_str_new_cstr(func_name);
|
|
return rb_class_new_instance(2, args, get_syserr(n));
|
|
}
|
|
#endif
|
|
|
|
NORETURN(static void rb_mod_exc_raise(VALUE exc, VALUE mod));
|
|
|
|
static void
|
|
rb_mod_exc_raise(VALUE exc, VALUE mod)
|
|
{
|
|
rb_extend_object(exc, mod);
|
|
rb_exc_raise(exc);
|
|
}
|
|
|
|
void
|
|
rb_mod_sys_fail(VALUE mod, const char *mesg)
|
|
{
|
|
VALUE exc = make_errno_exc(mesg);
|
|
rb_mod_exc_raise(exc, mod);
|
|
}
|
|
|
|
void
|
|
rb_mod_sys_fail_str(VALUE mod, VALUE mesg)
|
|
{
|
|
VALUE exc = make_errno_exc_str(mesg);
|
|
rb_mod_exc_raise(exc, mod);
|
|
}
|
|
|
|
void
|
|
rb_mod_syserr_fail(VALUE mod, int e, const char *mesg)
|
|
{
|
|
VALUE exc = rb_syserr_new(e, mesg);
|
|
rb_mod_exc_raise(exc, mod);
|
|
}
|
|
|
|
void
|
|
rb_mod_syserr_fail_str(VALUE mod, int e, VALUE mesg)
|
|
{
|
|
VALUE exc = rb_syserr_new_str(e, mesg);
|
|
rb_mod_exc_raise(exc, mod);
|
|
}
|
|
|
|
static void
|
|
syserr_warning(VALUE mesg, int err)
|
|
{
|
|
rb_str_set_len(mesg, RSTRING_LEN(mesg)-1);
|
|
rb_str_catf(mesg, ": %s\n", strerror(err));
|
|
rb_write_warning_str(mesg);
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
rb_sys_warn(const char *fmt, ...)
|
|
{
|
|
if (!NIL_P(ruby_verbose)) {
|
|
int errno_save = errno;
|
|
with_warning_string(mesg, 0, fmt) {
|
|
syserr_warning(mesg, errno_save);
|
|
}
|
|
errno = errno_save;
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_syserr_warn(int err, const char *fmt, ...)
|
|
{
|
|
if (!NIL_P(ruby_verbose)) {
|
|
with_warning_string(mesg, 0, fmt) {
|
|
syserr_warning(mesg, err);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_sys_enc_warn(rb_encoding *enc, const char *fmt, ...)
|
|
{
|
|
if (!NIL_P(ruby_verbose)) {
|
|
int errno_save = errno;
|
|
with_warning_string(mesg, enc, fmt) {
|
|
syserr_warning(mesg, errno_save);
|
|
}
|
|
errno = errno_save;
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_syserr_enc_warn(int err, rb_encoding *enc, const char *fmt, ...)
|
|
{
|
|
if (!NIL_P(ruby_verbose)) {
|
|
with_warning_string(mesg, enc, fmt) {
|
|
syserr_warning(mesg, err);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void
|
|
rb_sys_warning(const char *fmt, ...)
|
|
{
|
|
if (RTEST(ruby_verbose)) {
|
|
int errno_save = errno;
|
|
with_warning_string(mesg, 0, fmt) {
|
|
syserr_warning(mesg, errno_save);
|
|
}
|
|
errno = errno_save;
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
rb_syserr_warning(int err, const char *fmt, ...)
|
|
{
|
|
if (RTEST(ruby_verbose)) {
|
|
with_warning_string(mesg, 0, fmt) {
|
|
syserr_warning(mesg, err);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void
|
|
rb_sys_enc_warning(rb_encoding *enc, const char *fmt, ...)
|
|
{
|
|
if (RTEST(ruby_verbose)) {
|
|
int errno_save = errno;
|
|
with_warning_string(mesg, enc, fmt) {
|
|
syserr_warning(mesg, errno_save);
|
|
}
|
|
errno = errno_save;
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_syserr_enc_warning(int err, rb_encoding *enc, const char *fmt, ...)
|
|
{
|
|
if (RTEST(ruby_verbose)) {
|
|
with_warning_string(mesg, enc, fmt) {
|
|
syserr_warning(mesg, err);
|
|
}
|
|
}
|
|
}
|
|
|
|
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_eFrozenError, "can't modify frozen %s", what);
|
|
}
|
|
|
|
void
|
|
rb_frozen_error_raise(VALUE frozen_obj, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
VALUE exc, mesg;
|
|
|
|
va_start(args, fmt);
|
|
mesg = rb_vsprintf(fmt, args);
|
|
va_end(args);
|
|
exc = rb_exc_new3(rb_eFrozenError, mesg);
|
|
rb_ivar_set(exc, id_recv, frozen_obj);
|
|
rb_exc_raise(exc);
|
|
}
|
|
|
|
static VALUE
|
|
inspect_frozen_obj(VALUE obj, VALUE mesg, int recur)
|
|
{
|
|
if (recur) {
|
|
rb_str_cat_cstr(mesg, " ...");
|
|
}
|
|
else {
|
|
rb_str_append(mesg, rb_inspect(obj));
|
|
}
|
|
return mesg;
|
|
}
|
|
|
|
void
|
|
rb_error_frozen_object(VALUE frozen_obj)
|
|
{
|
|
VALUE debug_info;
|
|
const ID created_info = id_debug_created_info;
|
|
VALUE mesg = rb_sprintf("can't modify frozen %"PRIsVALUE": ",
|
|
CLASS_OF(frozen_obj));
|
|
VALUE exc = rb_exc_new_str(rb_eFrozenError, mesg);
|
|
|
|
rb_ivar_set(exc, id_recv, frozen_obj);
|
|
rb_exec_recursive(inspect_frozen_obj, frozen_obj, mesg);
|
|
|
|
if (!NIL_P(debug_info = rb_attr_get(frozen_obj, created_info))) {
|
|
VALUE path = rb_ary_entry(debug_info, 0);
|
|
VALUE line = rb_ary_entry(debug_info, 1);
|
|
|
|
rb_str_catf(mesg, ", created at %"PRIsVALUE":%"PRIsVALUE, path, line);
|
|
}
|
|
rb_exc_raise(exc);
|
|
}
|
|
|
|
#undef rb_check_frozen
|
|
void
|
|
rb_check_frozen(VALUE obj)
|
|
{
|
|
rb_check_frozen_internal(obj);
|
|
}
|
|
|
|
void
|
|
rb_check_copyable(VALUE obj, VALUE orig)
|
|
{
|
|
if (!FL_ABLE(obj)) return;
|
|
rb_check_frozen_internal(obj);
|
|
if (!FL_ABLE(orig)) return;
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
#include "warning.rbinc"
|
|
|
|
/*!
|
|
* \}
|
|
*/
|