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https://github.com/ruby/ruby.git
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bebb62e01b
undefined method even if ruby_running is FALSE. We haven't call "undef"ed methods before ruby_running. So that this issue does not make troubles. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2105 lines
56 KiB
C
2105 lines
56 KiB
C
/*
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* This file is included by vm.c
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*/
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#include "id_table.h"
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#define METHOD_DEBUG 0
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#if OPT_GLOBAL_METHOD_CACHE
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#ifndef GLOBAL_METHOD_CACHE_SIZE
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#define GLOBAL_METHOD_CACHE_SIZE 0x800
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#endif
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#define LSB_ONLY(x) ((x) & ~((x) - 1))
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#define POWER_OF_2_P(x) ((x) == LSB_ONLY(x))
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#if !POWER_OF_2_P(GLOBAL_METHOD_CACHE_SIZE)
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# error GLOBAL_METHOD_CACHE_SIZE must be power of 2
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#endif
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#ifndef GLOBAL_METHOD_CACHE_MASK
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#define GLOBAL_METHOD_CACHE_MASK (GLOBAL_METHOD_CACHE_SIZE-1)
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#endif
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#define GLOBAL_METHOD_CACHE_KEY(c,m) ((((c)>>3)^(m))&(global_method_cache.mask))
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#define GLOBAL_METHOD_CACHE(c,m) (global_method_cache.entries + GLOBAL_METHOD_CACHE_KEY(c,m))
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#else
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#define GLOBAL_METHOD_CACHE(c,m) (rb_bug("global method cache disabled improperly"), NULL)
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#endif
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static int vm_redefinition_check_flag(VALUE klass);
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static void rb_vm_check_redefinition_opt_method(const rb_method_entry_t *me, VALUE klass);
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#define object_id idObject_id
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#define added idMethod_added
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#define singleton_added idSingleton_method_added
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#define removed idMethod_removed
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#define singleton_removed idSingleton_method_removed
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#define undefined idMethod_undefined
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#define singleton_undefined idSingleton_method_undefined
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#define attached id__attached__
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struct cache_entry {
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rb_serial_t method_state;
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rb_serial_t class_serial;
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ID mid;
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rb_method_entry_t* me;
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VALUE defined_class;
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};
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#if OPT_GLOBAL_METHOD_CACHE
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static struct {
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unsigned int size;
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unsigned int mask;
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struct cache_entry *entries;
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} global_method_cache = {
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GLOBAL_METHOD_CACHE_SIZE,
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GLOBAL_METHOD_CACHE_MASK,
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};
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#endif
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#define ruby_running (GET_VM()->running)
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/* int ruby_running = 0; */
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static void
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rb_class_clear_method_cache(VALUE klass, VALUE arg)
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{
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RCLASS_SERIAL(klass) = rb_next_class_serial();
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if (RB_TYPE_P(klass, T_ICLASS)) {
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struct rb_id_table *table = RCLASS_CALLABLE_M_TBL(klass);
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if (table) {
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rb_id_table_clear(table);
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}
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}
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else {
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if (RCLASS_CALLABLE_M_TBL(klass) != 0) {
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rb_obj_info_dump(klass);
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rb_bug("RCLASS_CALLABLE_M_TBL(klass) != 0");
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}
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}
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rb_class_foreach_subclass(klass, rb_class_clear_method_cache, arg);
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}
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void
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rb_clear_cache(void)
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{
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ONLY_FOR_INTERNAL_USE("rb_clear_cache()");
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}
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void
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rb_clear_constant_cache(void)
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{
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INC_GLOBAL_CONSTANT_STATE();
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}
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void
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rb_clear_method_cache_by_class(VALUE klass)
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{
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if (klass && klass != Qundef) {
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int global = klass == rb_cBasicObject || klass == rb_cObject || klass == rb_mKernel;
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RUBY_DTRACE_HOOK(METHOD_CACHE_CLEAR, (global ? "global" : rb_class2name(klass)));
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if (global) {
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INC_GLOBAL_METHOD_STATE();
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}
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else {
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rb_class_clear_method_cache(klass, Qnil);
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}
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}
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if (klass == rb_mKernel) {
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rb_subclass_entry_t *entry = RCLASS_EXT(klass)->subclasses;
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for (; entry != NULL; entry = entry->next) {
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struct rb_id_table *table = RCLASS_CALLABLE_M_TBL(entry->klass);
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if (table)rb_id_table_clear(table);
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}
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}
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}
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VALUE
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rb_f_notimplement(int argc, const VALUE *argv, VALUE obj)
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{
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rb_notimplement();
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UNREACHABLE;
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}
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static void
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rb_define_notimplement_method_id(VALUE mod, ID id, rb_method_visibility_t visi)
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{
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rb_add_method(mod, id, VM_METHOD_TYPE_NOTIMPLEMENTED, (void *)1, visi);
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}
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void
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rb_add_method_cfunc(VALUE klass, ID mid, VALUE (*func)(ANYARGS), int argc, rb_method_visibility_t visi)
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{
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if (argc < -2 || 15 < argc) rb_raise(rb_eArgError, "arity out of range: %d for -2..15", argc);
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if (func != rb_f_notimplement) {
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rb_method_cfunc_t opt;
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opt.func = func;
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opt.argc = argc;
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rb_add_method(klass, mid, VM_METHOD_TYPE_CFUNC, &opt, visi);
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}
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else {
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rb_define_notimplement_method_id(klass, mid, visi);
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}
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}
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static void
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rb_method_definition_release(rb_method_definition_t *def, int complemented)
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{
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if (def != NULL) {
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const int alias_count = def->alias_count;
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const int complemented_count = def->complemented_count;
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VM_ASSERT(alias_count >= 0);
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VM_ASSERT(complemented_count >= 0);
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if (alias_count + complemented_count == 0) {
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if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d,%d (remove)\n", def, rb_id2name(def->original_id), alias_count, complemented_count);
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xfree(def);
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}
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else {
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if (complemented) def->complemented_count--;
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else if (def->alias_count > 0) def->alias_count--;
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if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d->%d,%d->%d (dec)\n", def, rb_id2name(def->original_id),
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alias_count, def->alias_count, complemented_count, def->complemented_count);
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}
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}
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}
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void
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rb_free_method_entry(const rb_method_entry_t *me)
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{
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rb_method_definition_release(me->def, METHOD_ENTRY_COMPLEMENTED(me));
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}
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static inline rb_method_entry_t *search_method(VALUE klass, ID id, VALUE *defined_class_ptr);
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static int rb_method_definition_eq(const rb_method_definition_t *d1, const rb_method_definition_t *d2);
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static inline rb_method_entry_t *
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lookup_method_table(VALUE klass, ID id)
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{
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st_data_t body;
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struct rb_id_table *m_tbl = RCLASS_M_TBL(klass);
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if (rb_id_table_lookup(m_tbl, id, &body)) {
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return (rb_method_entry_t *) body;
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}
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else {
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return 0;
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}
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}
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static VALUE
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(*call_cfunc_invoker_func(int argc))(VALUE (*func)(ANYARGS), VALUE recv, int argc, const VALUE *)
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{
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switch (argc) {
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case -2: return &call_cfunc_m2;
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case -1: return &call_cfunc_m1;
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case 0: return &call_cfunc_0;
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case 1: return &call_cfunc_1;
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case 2: return &call_cfunc_2;
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case 3: return &call_cfunc_3;
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case 4: return &call_cfunc_4;
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case 5: return &call_cfunc_5;
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case 6: return &call_cfunc_6;
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case 7: return &call_cfunc_7;
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case 8: return &call_cfunc_8;
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case 9: return &call_cfunc_9;
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case 10: return &call_cfunc_10;
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case 11: return &call_cfunc_11;
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case 12: return &call_cfunc_12;
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case 13: return &call_cfunc_13;
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case 14: return &call_cfunc_14;
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case 15: return &call_cfunc_15;
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default:
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rb_bug("call_cfunc_func: unsupported length: %d", argc);
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}
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}
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static void
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setup_method_cfunc_struct(rb_method_cfunc_t *cfunc, VALUE (*func)(), int argc)
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{
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cfunc->func = func;
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cfunc->argc = argc;
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cfunc->invoker = call_cfunc_invoker_func(argc);
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}
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static void
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method_definition_set(const rb_method_entry_t *me, rb_method_definition_t *def, void *opts)
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{
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*(rb_method_definition_t **)&me->def = def;
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if (opts != NULL) {
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switch (def->type) {
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case VM_METHOD_TYPE_ISEQ:
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{
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rb_method_iseq_t *iseq_body = (rb_method_iseq_t *)opts;
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rb_cref_t *method_cref, *cref = iseq_body->cref;
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/* setup iseq first (before invoking GC) */
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RB_OBJ_WRITE(me, &def->body.iseq.iseqptr, iseq_body->iseqptr);
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if (0) vm_cref_dump("rb_method_definition_create", cref);
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if (cref) {
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method_cref = cref;
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}
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else {
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method_cref = vm_cref_new_toplevel(GET_THREAD()); /* TODO: can we reuse? */
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}
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RB_OBJ_WRITE(me, &def->body.iseq.cref, method_cref);
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return;
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}
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case VM_METHOD_TYPE_CFUNC:
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{
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rb_method_cfunc_t *cfunc = (rb_method_cfunc_t *)opts;
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setup_method_cfunc_struct(&def->body.cfunc, cfunc->func, cfunc->argc);
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return;
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}
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case VM_METHOD_TYPE_ATTRSET:
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case VM_METHOD_TYPE_IVAR:
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{
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rb_thread_t *th = GET_THREAD();
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rb_control_frame_t *cfp;
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int line;
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def->body.attr.id = (ID)(VALUE)opts;
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cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp);
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if (cfp && (line = rb_vm_get_sourceline(cfp))) {
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VALUE location = rb_ary_new3(2, cfp->iseq->body->location.path, INT2FIX(line));
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RB_OBJ_WRITE(me, &def->body.attr.location, rb_ary_freeze(location));
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}
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else {
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VM_ASSERT(def->body.attr.location == 0);
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}
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return;
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}
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case VM_METHOD_TYPE_BMETHOD:
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RB_OBJ_WRITE(me, &def->body.proc, (VALUE)opts);
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return;
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case VM_METHOD_TYPE_NOTIMPLEMENTED:
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setup_method_cfunc_struct(&def->body.cfunc, rb_f_notimplement, -1);
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return;
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case VM_METHOD_TYPE_OPTIMIZED:
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def->body.optimize_type = (enum method_optimized_type)opts;
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return;
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case VM_METHOD_TYPE_REFINED:
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{
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const rb_method_refined_t *refined = (rb_method_refined_t *)opts;
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RB_OBJ_WRITE(me, &def->body.refined.orig_me, refined->orig_me);
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RB_OBJ_WRITE(me, &def->body.refined.owner, refined->owner);
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return;
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}
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case VM_METHOD_TYPE_ALIAS:
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RB_OBJ_WRITE(me, &def->body.alias.original_me, (rb_method_entry_t *)opts);
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return;
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case VM_METHOD_TYPE_ZSUPER:
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case VM_METHOD_TYPE_UNDEF:
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case VM_METHOD_TYPE_MISSING:
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return;
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}
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}
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}
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static void
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method_definition_reset(const rb_method_entry_t *me)
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{
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rb_method_definition_t *def = me->def;
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switch(def->type) {
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case VM_METHOD_TYPE_ISEQ:
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RB_OBJ_WRITTEN(me, Qundef, def->body.iseq.iseqptr);
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RB_OBJ_WRITTEN(me, Qundef, def->body.iseq.cref);
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break;
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case VM_METHOD_TYPE_ATTRSET:
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case VM_METHOD_TYPE_IVAR:
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RB_OBJ_WRITTEN(me, Qundef, def->body.attr.location);
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break;
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case VM_METHOD_TYPE_BMETHOD:
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RB_OBJ_WRITTEN(me, Qundef, def->body.proc);
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break;
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case VM_METHOD_TYPE_REFINED:
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RB_OBJ_WRITTEN(me, Qundef, def->body.refined.orig_me);
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RB_OBJ_WRITTEN(me, Qundef, def->body.refined.owner);
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break;
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case VM_METHOD_TYPE_ALIAS:
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RB_OBJ_WRITTEN(me, Qundef, def->body.alias.original_me);
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break;
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case VM_METHOD_TYPE_CFUNC:
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case VM_METHOD_TYPE_ZSUPER:
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case VM_METHOD_TYPE_MISSING:
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case VM_METHOD_TYPE_OPTIMIZED:
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case VM_METHOD_TYPE_UNDEF:
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case VM_METHOD_TYPE_NOTIMPLEMENTED:
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break;
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}
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}
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static rb_method_definition_t *
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method_definition_create(rb_method_type_t type, ID mid)
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{
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rb_method_definition_t *def;
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def = ZALLOC(rb_method_definition_t);
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def->type = type;
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def->original_id = mid;
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return def;
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}
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static rb_method_definition_t *
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method_definition_addref(rb_method_definition_t *def)
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{
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def->alias_count++;
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if (METHOD_DEBUG) fprintf(stderr, "+%p-%s:%d\n", def, rb_id2name(def->original_id), def->alias_count);
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return def;
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}
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static rb_method_definition_t *
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method_definition_addref_complement(rb_method_definition_t *def)
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{
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def->complemented_count++;
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if (METHOD_DEBUG) fprintf(stderr, "+%p-%s:%d\n", def, rb_id2name(def->original_id), def->alias_count);
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return def;
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}
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static rb_method_entry_t *
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rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, const rb_method_definition_t *def)
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{
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rb_method_entry_t *me = (rb_method_entry_t *)rb_imemo_new(imemo_ment, (VALUE)def, (VALUE)called_id, owner, defined_class);
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return me;
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}
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static VALUE
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filter_defined_class(VALUE klass)
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{
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switch (BUILTIN_TYPE(klass)) {
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case T_CLASS:
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return klass;
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case T_MODULE:
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return 0;
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case T_ICLASS:
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break;
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}
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rb_bug("filter_defined_class: %s", rb_obj_info(klass));
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}
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rb_method_entry_t *
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rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, const rb_method_definition_t *def)
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{
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rb_method_entry_t *me = rb_method_entry_alloc(called_id, klass, filter_defined_class(klass), def);
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METHOD_ENTRY_FLAGS_SET(me, visi, ruby_running ? FALSE : TRUE);
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if (def != NULL) method_definition_reset(me);
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return me;
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}
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const rb_method_entry_t *
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rb_method_entry_clone(const rb_method_entry_t *src_me)
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{
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rb_method_entry_t *me = rb_method_entry_alloc(src_me->called_id, src_me->owner, src_me->defined_class,
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method_definition_addref(src_me->def));
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METHOD_ENTRY_FLAGS_COPY(me, src_me);
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return me;
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}
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const rb_callable_method_entry_t *
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rb_method_entry_complement_defined_class(const rb_method_entry_t *src_me, VALUE defined_class)
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{
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rb_method_entry_t *me = rb_method_entry_alloc(src_me->called_id, src_me->owner, defined_class,
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method_definition_addref_complement(src_me->def));
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METHOD_ENTRY_FLAGS_COPY(me, src_me);
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METHOD_ENTRY_COMPLEMENTED_SET(me);
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VM_ASSERT(RB_TYPE_P(me->owner, T_MODULE));
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return (rb_callable_method_entry_t *)me;
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}
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void
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rb_method_entry_copy(rb_method_entry_t *dst, const rb_method_entry_t *src)
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{
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*(rb_method_definition_t **)&dst->def = method_definition_addref(src->def);
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method_definition_reset(dst);
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dst->called_id = src->called_id;
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RB_OBJ_WRITE((VALUE)dst, &dst->owner, src->owner);
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RB_OBJ_WRITE((VALUE)dst, &dst->defined_class, src->defined_class);
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METHOD_ENTRY_FLAGS_COPY(dst, src);
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}
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static void
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make_method_entry_refined(VALUE owner, rb_method_entry_t *me)
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{
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if (me->def->type == VM_METHOD_TYPE_REFINED) {
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return;
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}
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else {
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struct {
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const struct rb_method_entry_struct *orig_me;
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VALUE owner;
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} refined;
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rb_vm_check_redefinition_opt_method(me, me->owner);
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refined.orig_me = rb_method_entry_clone(me);
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refined.owner = owner;
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method_definition_set(me, method_definition_create(VM_METHOD_TYPE_REFINED, me->called_id), (void *)&refined);
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METHOD_ENTRY_VISI_SET(me, METHOD_VISI_PUBLIC);
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}
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}
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void
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rb_add_refined_method_entry(VALUE refined_class, ID mid)
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{
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rb_method_entry_t *me = lookup_method_table(refined_class, mid);
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if (me) {
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make_method_entry_refined(refined_class, me);
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rb_clear_method_cache_by_class(refined_class);
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}
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else {
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rb_add_method(refined_class, mid, VM_METHOD_TYPE_REFINED, 0, METHOD_VISI_PUBLIC);
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}
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}
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static void
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check_override_opt_method(VALUE klass, VALUE arg)
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|
{
|
|
ID mid = (ID)arg;
|
|
const rb_method_entry_t *me, *newme;
|
|
|
|
if (vm_redefinition_check_flag(klass)) {
|
|
me = lookup_method_table(RCLASS_ORIGIN(klass), mid);
|
|
if (me) {
|
|
newme = rb_method_entry(klass, mid);
|
|
if (newme != me) rb_vm_check_redefinition_opt_method(me, me->owner);
|
|
}
|
|
}
|
|
rb_class_foreach_subclass(klass, check_override_opt_method, (VALUE)mid);
|
|
}
|
|
|
|
/*
|
|
* klass->method_table[mid] = method_entry(defined_class, visi, def)
|
|
*
|
|
* If def is given (!= NULL), then just use it and ignore original_id and otps.
|
|
* If not given, then make a new def with original_id and opts.
|
|
*/
|
|
static rb_method_entry_t *
|
|
rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibility_t visi,
|
|
rb_method_type_t type, rb_method_definition_t *def, ID original_id, void *opts)
|
|
{
|
|
rb_method_entry_t *me;
|
|
struct rb_id_table *mtbl;
|
|
st_data_t data;
|
|
int make_refined = 0;
|
|
|
|
if (NIL_P(klass)) {
|
|
klass = rb_cObject;
|
|
}
|
|
if (!FL_TEST(klass, FL_SINGLETON) &&
|
|
type != VM_METHOD_TYPE_NOTIMPLEMENTED &&
|
|
type != VM_METHOD_TYPE_ZSUPER) {
|
|
switch (mid) {
|
|
case idInitialize:
|
|
case idInitialize_copy:
|
|
case idInitialize_clone:
|
|
case idInitialize_dup:
|
|
case idRespond_to_missing:
|
|
visi = METHOD_VISI_PRIVATE;
|
|
}
|
|
}
|
|
|
|
rb_frozen_class_p(klass);
|
|
|
|
if (FL_TEST(klass, RMODULE_IS_REFINEMENT)) {
|
|
VALUE refined_class = rb_refinement_module_get_refined_class(klass);
|
|
rb_add_refined_method_entry(refined_class, mid);
|
|
}
|
|
if (type == VM_METHOD_TYPE_REFINED) {
|
|
rb_method_entry_t *old_me = lookup_method_table(RCLASS_ORIGIN(klass), mid);
|
|
if (old_me) rb_vm_check_redefinition_opt_method(old_me, klass);
|
|
}
|
|
else {
|
|
klass = RCLASS_ORIGIN(klass);
|
|
}
|
|
mtbl = RCLASS_M_TBL(klass);
|
|
|
|
/* check re-definition */
|
|
if (rb_id_table_lookup(mtbl, mid, &data)) {
|
|
rb_method_entry_t *old_me = (rb_method_entry_t *)data;
|
|
rb_method_definition_t *old_def = old_me->def;
|
|
|
|
if (rb_method_definition_eq(old_def, def)) return old_me;
|
|
rb_vm_check_redefinition_opt_method(old_me, klass);
|
|
|
|
if (old_def->type == VM_METHOD_TYPE_REFINED) make_refined = 1;
|
|
|
|
if (RTEST(ruby_verbose) &&
|
|
type != VM_METHOD_TYPE_UNDEF &&
|
|
(old_def->alias_count == 0) &&
|
|
old_def->type != VM_METHOD_TYPE_UNDEF &&
|
|
old_def->type != VM_METHOD_TYPE_ZSUPER &&
|
|
old_def->type != VM_METHOD_TYPE_ALIAS) {
|
|
const rb_iseq_t *iseq = 0;
|
|
|
|
rb_warning("method redefined; discarding old %"PRIsVALUE, rb_id2str(mid));
|
|
switch (old_def->type) {
|
|
case VM_METHOD_TYPE_ISEQ:
|
|
iseq = def_iseq_ptr(old_def);
|
|
break;
|
|
case VM_METHOD_TYPE_BMETHOD:
|
|
iseq = rb_proc_get_iseq(old_def->body.proc, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (iseq && !NIL_P(iseq->body->location.path)) {
|
|
int line = iseq->body->line_info_table ? FIX2INT(rb_iseq_first_lineno(iseq)) : 0;
|
|
rb_compile_warning(RSTRING_PTR(iseq->body->location.path), line,
|
|
"previous definition of %"PRIsVALUE" was here",
|
|
rb_id2str(old_def->original_id));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* create method entry */
|
|
me = rb_method_entry_create(mid, defined_class, visi, NULL);
|
|
if (def == NULL) def = method_definition_create(type, original_id);
|
|
method_definition_set(me, def, opts);
|
|
|
|
rb_clear_method_cache_by_class(klass);
|
|
|
|
/* check mid */
|
|
if (klass == rb_cObject && mid == idInitialize) {
|
|
rb_warn("redefining Object#initialize may cause infinite loop");
|
|
}
|
|
/* check mid */
|
|
if (mid == object_id || mid == id__send__) {
|
|
if (type == VM_METHOD_TYPE_ISEQ && search_method(klass, mid, 0)) {
|
|
rb_warn("redefining `%s' may cause serious problems", rb_id2name(mid));
|
|
}
|
|
}
|
|
|
|
if (make_refined) {
|
|
make_method_entry_refined(klass, me);
|
|
}
|
|
|
|
rb_id_table_insert(mtbl, mid, (VALUE)me);
|
|
RB_OBJ_WRITTEN(klass, Qundef, (VALUE)me);
|
|
|
|
VM_ASSERT(me->def != NULL);
|
|
|
|
/* check optimized method override by a prepended module */
|
|
if (RB_TYPE_P(klass, T_MODULE)) {
|
|
check_override_opt_method(klass, (VALUE)mid);
|
|
}
|
|
|
|
return me;
|
|
}
|
|
|
|
#define CALL_METHOD_HOOK(klass, hook, mid) do { \
|
|
const VALUE arg = ID2SYM(mid); \
|
|
VALUE recv_class = (klass); \
|
|
ID hook_id = (hook); \
|
|
if (FL_TEST((klass), FL_SINGLETON)) { \
|
|
recv_class = rb_ivar_get((klass), attached); \
|
|
hook_id = singleton_##hook; \
|
|
} \
|
|
rb_funcall2(recv_class, hook_id, 1, &arg); \
|
|
} while (0)
|
|
|
|
static void
|
|
method_added(VALUE klass, ID mid)
|
|
{
|
|
if (ruby_running) {
|
|
CALL_METHOD_HOOK(klass, added, mid);
|
|
}
|
|
}
|
|
|
|
rb_method_entry_t *
|
|
rb_add_method(VALUE klass, ID mid, rb_method_type_t type, void *opts, rb_method_visibility_t visi)
|
|
{
|
|
rb_method_entry_t *me = rb_method_entry_make(klass, mid, klass, visi, type, NULL, mid, opts);
|
|
|
|
if (type != VM_METHOD_TYPE_UNDEF && type != VM_METHOD_TYPE_REFINED) {
|
|
method_added(klass, mid);
|
|
}
|
|
|
|
return me;
|
|
}
|
|
|
|
void
|
|
rb_add_method_iseq(VALUE klass, ID mid, const rb_iseq_t *iseq, rb_cref_t *cref, rb_method_visibility_t visi)
|
|
{
|
|
struct { /* should be same fields with rb_method_iseq_struct */
|
|
const rb_iseq_t *iseqptr;
|
|
rb_cref_t *cref;
|
|
} iseq_body;
|
|
|
|
iseq_body.iseqptr = iseq;
|
|
iseq_body.cref = cref;
|
|
rb_add_method(klass, mid, VM_METHOD_TYPE_ISEQ, &iseq_body, visi);
|
|
}
|
|
|
|
static rb_method_entry_t *
|
|
method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *me,
|
|
rb_method_visibility_t visi, VALUE defined_class)
|
|
{
|
|
rb_method_entry_t *newme = rb_method_entry_make(klass, mid, defined_class, visi,
|
|
me->def->type, method_definition_addref(me->def), 0, NULL);
|
|
method_added(klass, mid);
|
|
return newme;
|
|
}
|
|
|
|
rb_method_entry_t *
|
|
rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *me, rb_method_visibility_t visi)
|
|
{
|
|
return method_entry_set(klass, mid, me, visi, klass);
|
|
}
|
|
|
|
#define UNDEF_ALLOC_FUNC ((rb_alloc_func_t)-1)
|
|
|
|
void
|
|
rb_define_alloc_func(VALUE klass, VALUE (*func)(VALUE))
|
|
{
|
|
Check_Type(klass, T_CLASS);
|
|
RCLASS_EXT(klass)->allocator = func;
|
|
}
|
|
|
|
void
|
|
rb_undef_alloc_func(VALUE klass)
|
|
{
|
|
rb_define_alloc_func(klass, UNDEF_ALLOC_FUNC);
|
|
}
|
|
|
|
rb_alloc_func_t
|
|
rb_get_alloc_func(VALUE klass)
|
|
{
|
|
Check_Type(klass, T_CLASS);
|
|
|
|
for (; klass; klass = RCLASS_SUPER(klass)) {
|
|
rb_alloc_func_t allocator = RCLASS_EXT(klass)->allocator;
|
|
if (allocator == UNDEF_ALLOC_FUNC) break;
|
|
if (allocator) return allocator;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline rb_method_entry_t*
|
|
search_method(VALUE klass, ID id, VALUE *defined_class_ptr)
|
|
{
|
|
rb_method_entry_t *me;
|
|
|
|
for (me = 0; klass; klass = RCLASS_SUPER(klass)) {
|
|
if ((me = lookup_method_table(klass, id)) != 0) break;
|
|
}
|
|
|
|
if (defined_class_ptr)
|
|
*defined_class_ptr = klass;
|
|
return me;
|
|
}
|
|
|
|
const rb_method_entry_t *
|
|
rb_method_entry_at(VALUE klass, ID id)
|
|
{
|
|
return lookup_method_table(klass, id);
|
|
}
|
|
|
|
/*
|
|
* search method entry without the method cache.
|
|
*
|
|
* if you need method entry with method cache (normal case), use
|
|
* rb_method_entry() simply.
|
|
*/
|
|
static rb_method_entry_t *
|
|
method_entry_get_without_cache(VALUE klass, ID id,
|
|
VALUE *defined_class_ptr)
|
|
{
|
|
VALUE defined_class;
|
|
rb_method_entry_t *me = search_method(klass, id, &defined_class);
|
|
|
|
if (ruby_running) {
|
|
if (OPT_GLOBAL_METHOD_CACHE) {
|
|
struct cache_entry *ent;
|
|
ent = GLOBAL_METHOD_CACHE(klass, id);
|
|
ent->class_serial = RCLASS_SERIAL(klass);
|
|
ent->method_state = GET_GLOBAL_METHOD_STATE();
|
|
ent->defined_class = defined_class;
|
|
ent->mid = id;
|
|
|
|
if (UNDEFINED_METHOD_ENTRY_P(me)) {
|
|
me = ent->me = NULL;
|
|
}
|
|
else {
|
|
ent->me = me;
|
|
}
|
|
}
|
|
else if (UNDEFINED_METHOD_ENTRY_P(me)) {
|
|
me = NULL;
|
|
}
|
|
}
|
|
else if (UNDEFINED_METHOD_ENTRY_P(me)) {
|
|
me = NULL;
|
|
}
|
|
|
|
if (defined_class_ptr)
|
|
*defined_class_ptr = defined_class;
|
|
return me;
|
|
}
|
|
|
|
#if VM_DEBUG_VERIFY_METHOD_CACHE
|
|
static void
|
|
verify_method_cache(VALUE klass, ID id, VALUE defined_class, rb_method_entry_t *me)
|
|
{
|
|
VALUE actual_defined_class;
|
|
rb_method_entry_t *actual_me =
|
|
method_entry_get_without_cache(klass, id, &actual_defined_class);
|
|
|
|
if (me != actual_me || defined_class != actual_defined_class) {
|
|
rb_bug("method cache verification failed");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static rb_method_entry_t *
|
|
method_entry_get(VALUE klass, ID id, VALUE *defined_class_ptr)
|
|
{
|
|
#if OPT_GLOBAL_METHOD_CACHE
|
|
struct cache_entry *ent;
|
|
ent = GLOBAL_METHOD_CACHE(klass, id);
|
|
if (ent->method_state == GET_GLOBAL_METHOD_STATE() &&
|
|
ent->class_serial == RCLASS_SERIAL(klass) &&
|
|
ent->mid == id) {
|
|
#if VM_DEBUG_VERIFY_METHOD_CACHE
|
|
verify_method_cache(klass, id, ent->defined_class, ent->me);
|
|
#endif
|
|
if (defined_class_ptr) *defined_class_ptr = ent->defined_class;
|
|
return ent->me;
|
|
}
|
|
#endif
|
|
|
|
return method_entry_get_without_cache(klass, id, defined_class_ptr);
|
|
}
|
|
|
|
const rb_method_entry_t *
|
|
rb_method_entry(VALUE klass, ID id)
|
|
{
|
|
return method_entry_get(klass, id, NULL);
|
|
}
|
|
|
|
static const rb_callable_method_entry_t *
|
|
prepare_callable_method_entry(VALUE defined_class, ID id, const rb_method_entry_t *me)
|
|
{
|
|
struct rb_id_table *mtbl;
|
|
const rb_callable_method_entry_t *cme;
|
|
|
|
if (me && me->defined_class == 0) {
|
|
VM_ASSERT(RB_TYPE_P(defined_class, T_ICLASS));
|
|
VM_ASSERT(me->defined_class == 0);
|
|
|
|
if ((mtbl = RCLASS_CALLABLE_M_TBL(defined_class)) == NULL) {
|
|
mtbl = RCLASS_EXT(defined_class)->callable_m_tbl = rb_id_table_create(0);
|
|
}
|
|
|
|
if (rb_id_table_lookup(mtbl, id, (VALUE *)&me)) {
|
|
cme = (rb_callable_method_entry_t *)me;
|
|
VM_ASSERT(callable_method_entry_p(cme));
|
|
}
|
|
else {
|
|
cme = rb_method_entry_complement_defined_class(me, defined_class);
|
|
rb_id_table_insert(mtbl, id, (VALUE)cme);
|
|
VM_ASSERT(callable_method_entry_p(cme));
|
|
}
|
|
}
|
|
else {
|
|
cme = (const rb_callable_method_entry_t *)me;
|
|
VM_ASSERT(callable_method_entry_p(cme));
|
|
}
|
|
|
|
return cme;
|
|
}
|
|
|
|
const rb_callable_method_entry_t *
|
|
rb_callable_method_entry(VALUE klass, ID id)
|
|
{
|
|
VALUE defined_class;
|
|
rb_method_entry_t *me = method_entry_get(klass, id, &defined_class);
|
|
return prepare_callable_method_entry(defined_class, id, me);
|
|
}
|
|
|
|
static const rb_method_entry_t *resolve_refined_method(VALUE refinements, const rb_method_entry_t *me, VALUE *defined_class_ptr);
|
|
|
|
static const rb_method_entry_t *
|
|
method_entry_resolve_refinement(VALUE klass, ID id, int with_refinement, VALUE *defined_class_ptr)
|
|
{
|
|
const rb_method_entry_t *me = method_entry_get(klass, id, defined_class_ptr);
|
|
|
|
if (me) {
|
|
if (me->def->type == VM_METHOD_TYPE_REFINED) {
|
|
if (with_refinement) {
|
|
const rb_cref_t *cref = rb_vm_cref();
|
|
VALUE refinements = cref ? CREF_REFINEMENTS(cref) : Qnil;
|
|
me = resolve_refined_method(refinements, me, defined_class_ptr);
|
|
}
|
|
else {
|
|
me = resolve_refined_method(Qnil, me, defined_class_ptr);
|
|
}
|
|
|
|
if (UNDEFINED_METHOD_ENTRY_P(me)) me = NULL;
|
|
}
|
|
}
|
|
|
|
return me;
|
|
}
|
|
|
|
const rb_method_entry_t *
|
|
rb_method_entry_with_refinements(VALUE klass, ID id)
|
|
{
|
|
return method_entry_resolve_refinement(klass, id, TRUE, NULL);
|
|
}
|
|
|
|
const rb_callable_method_entry_t *
|
|
rb_callable_method_entry_with_refinements(VALUE klass, ID id)
|
|
{
|
|
VALUE defined_class;
|
|
const rb_method_entry_t *me = method_entry_resolve_refinement(klass, id, TRUE, &defined_class);
|
|
return prepare_callable_method_entry(defined_class, id, me);
|
|
}
|
|
|
|
const rb_method_entry_t *
|
|
rb_method_entry_without_refinements(VALUE klass, ID id)
|
|
{
|
|
return method_entry_resolve_refinement(klass, id, FALSE, NULL);
|
|
}
|
|
|
|
const rb_callable_method_entry_t *
|
|
rb_callable_method_entry_without_refinements(VALUE klass, ID id)
|
|
{
|
|
VALUE defined_class;
|
|
const rb_method_entry_t *me = method_entry_resolve_refinement(klass, id, FALSE, &defined_class);
|
|
return prepare_callable_method_entry(defined_class, id, me);
|
|
}
|
|
|
|
static const rb_method_entry_t *
|
|
refined_method_original_method_entry(VALUE refinements, const rb_method_entry_t *me, VALUE *defined_class_ptr)
|
|
{
|
|
VALUE super;
|
|
|
|
if (me->def->body.refined.orig_me) {
|
|
if (defined_class_ptr) *defined_class_ptr = me->def->body.refined.orig_me->defined_class;
|
|
return me->def->body.refined.orig_me;
|
|
}
|
|
else if (!(super = RCLASS_SUPER(me->owner))) {
|
|
return 0;
|
|
}
|
|
else {
|
|
rb_method_entry_t *tmp_me;
|
|
tmp_me = method_entry_get(super, me->called_id, defined_class_ptr);
|
|
return resolve_refined_method(refinements, tmp_me, defined_class_ptr);
|
|
}
|
|
}
|
|
|
|
static const rb_method_entry_t *
|
|
resolve_refined_method(VALUE refinements, const rb_method_entry_t *me, VALUE *defined_class_ptr)
|
|
{
|
|
if (me && me->def->type == VM_METHOD_TYPE_REFINED) {
|
|
VALUE refinement;
|
|
rb_method_entry_t *tmp_me;
|
|
|
|
refinement = find_refinement(refinements, me->owner);
|
|
if (NIL_P(refinement)) {
|
|
return refined_method_original_method_entry(refinements, me, defined_class_ptr);
|
|
}
|
|
else {
|
|
tmp_me = method_entry_get(refinement, me->called_id, defined_class_ptr);
|
|
|
|
if (tmp_me && tmp_me->def->type != VM_METHOD_TYPE_REFINED) {
|
|
return tmp_me;
|
|
}
|
|
else {
|
|
return refined_method_original_method_entry(refinements, me, defined_class_ptr);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
return me;
|
|
}
|
|
}
|
|
|
|
const rb_method_entry_t *
|
|
rb_resolve_refined_method(VALUE refinements, const rb_method_entry_t *me)
|
|
{
|
|
return resolve_refined_method(refinements, me, NULL);
|
|
}
|
|
|
|
const rb_callable_method_entry_t *
|
|
rb_resolve_refined_method_callable(VALUE refinements, const rb_callable_method_entry_t *me)
|
|
{
|
|
VALUE defined_class = me->defined_class;
|
|
const rb_method_entry_t *resolved_me = resolve_refined_method(refinements, (const rb_method_entry_t *)me, &defined_class);
|
|
|
|
if (resolved_me && resolved_me->defined_class == 0) {
|
|
return rb_method_entry_complement_defined_class(resolved_me, defined_class);
|
|
}
|
|
else {
|
|
return (const rb_callable_method_entry_t *)resolved_me;
|
|
}
|
|
}
|
|
|
|
static void
|
|
remove_method(VALUE klass, ID mid)
|
|
{
|
|
VALUE data;
|
|
rb_method_entry_t *me = 0;
|
|
VALUE self = klass;
|
|
|
|
klass = RCLASS_ORIGIN(klass);
|
|
rb_frozen_class_p(klass);
|
|
if (mid == object_id || mid == id__send__ || mid == idInitialize) {
|
|
rb_warn("removing `%s' may cause serious problems", rb_id2name(mid));
|
|
}
|
|
|
|
if (!rb_id_table_lookup(RCLASS_M_TBL(klass), mid, &data) ||
|
|
!(me = (rb_method_entry_t *)data) ||
|
|
(!me->def || me->def->type == VM_METHOD_TYPE_UNDEF) ||
|
|
UNDEFINED_REFINED_METHOD_P(me->def)) {
|
|
rb_name_err_raise("method `%1$s' not defined in %2$s",
|
|
klass, ID2SYM(mid));
|
|
}
|
|
|
|
rb_id_table_delete(RCLASS_M_TBL(klass), mid);
|
|
|
|
rb_vm_check_redefinition_opt_method(me, klass);
|
|
rb_clear_method_cache_by_class(klass);
|
|
|
|
if (me->def->type == VM_METHOD_TYPE_REFINED) {
|
|
rb_add_refined_method_entry(klass, mid);
|
|
}
|
|
|
|
CALL_METHOD_HOOK(self, removed, mid);
|
|
}
|
|
|
|
void
|
|
rb_remove_method_id(VALUE klass, ID mid)
|
|
{
|
|
remove_method(klass, mid);
|
|
}
|
|
|
|
void
|
|
rb_remove_method(VALUE klass, const char *name)
|
|
{
|
|
remove_method(klass, rb_intern(name));
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* remove_method(symbol) -> self
|
|
* remove_method(string) -> self
|
|
*
|
|
* Removes the method identified by _symbol_ from the current
|
|
* class. For an example, see <code>Module.undef_method</code>.
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_remove_method(int argc, VALUE *argv, VALUE mod)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
VALUE v = argv[i];
|
|
ID id = rb_check_id(&v);
|
|
if (!id) {
|
|
rb_name_err_raise("method `%1$s' not defined in %2$s",
|
|
mod, v);
|
|
}
|
|
remove_method(mod, id);
|
|
}
|
|
return mod;
|
|
}
|
|
|
|
static void
|
|
rb_export_method(VALUE klass, ID name, rb_method_visibility_t visi)
|
|
{
|
|
rb_method_entry_t *me;
|
|
VALUE defined_class;
|
|
|
|
me = search_method(klass, name, &defined_class);
|
|
if (!me && RB_TYPE_P(klass, T_MODULE)) {
|
|
me = search_method(rb_cObject, name, &defined_class);
|
|
}
|
|
|
|
if (UNDEFINED_METHOD_ENTRY_P(me) ||
|
|
UNDEFINED_REFINED_METHOD_P(me->def)) {
|
|
rb_print_undef(klass, name, METHOD_VISI_UNDEF);
|
|
}
|
|
|
|
if (METHOD_ENTRY_VISI(me) != visi) {
|
|
rb_vm_check_redefinition_opt_method(me, klass);
|
|
|
|
if (klass == defined_class || RCLASS_ORIGIN(klass) == defined_class) {
|
|
METHOD_ENTRY_VISI_SET(me, visi);
|
|
|
|
if (me->def->type == VM_METHOD_TYPE_REFINED && me->def->body.refined.orig_me) {
|
|
METHOD_ENTRY_VISI_SET((rb_method_entry_t *)me->def->body.refined.orig_me, visi);
|
|
}
|
|
rb_clear_method_cache_by_class(klass);
|
|
}
|
|
else {
|
|
rb_add_method(klass, name, VM_METHOD_TYPE_ZSUPER, 0, visi);
|
|
}
|
|
}
|
|
}
|
|
|
|
#define BOUND_PRIVATE 0x01
|
|
#define BOUND_RESPONDS 0x02
|
|
|
|
int
|
|
rb_method_boundp(VALUE klass, ID id, int ex)
|
|
{
|
|
const rb_method_entry_t *me = rb_method_entry_without_refinements(klass, id);
|
|
|
|
if (me != 0) {
|
|
if ((ex & ~BOUND_RESPONDS) &&
|
|
((METHOD_ENTRY_VISI(me) == METHOD_VISI_PRIVATE) ||
|
|
((ex & BOUND_RESPONDS) && (METHOD_ENTRY_VISI(me) == METHOD_VISI_PROTECTED)))) {
|
|
return 0;
|
|
}
|
|
|
|
if (me->def->type == VM_METHOD_TYPE_NOTIMPLEMENTED) {
|
|
if (ex & BOUND_RESPONDS) return 2;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static rb_method_visibility_t
|
|
rb_scope_visibility_get(void)
|
|
{
|
|
rb_thread_t *th = GET_THREAD();
|
|
rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp);
|
|
|
|
if (!vm_env_cref_by_cref(cfp->ep)) {
|
|
return METHOD_VISI_PUBLIC;
|
|
}
|
|
else {
|
|
return CREF_SCOPE_VISI(rb_vm_cref())->method_visi;
|
|
}
|
|
}
|
|
|
|
static int
|
|
rb_scope_module_func_check(void)
|
|
{
|
|
rb_thread_t *th = GET_THREAD();
|
|
rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp);
|
|
|
|
if (!vm_env_cref_by_cref(cfp->ep)) {
|
|
return FALSE;
|
|
}
|
|
else {
|
|
return CREF_SCOPE_VISI(rb_vm_cref())->module_func;
|
|
}
|
|
}
|
|
|
|
static void
|
|
vm_cref_set_visibility(rb_method_visibility_t method_visi, int module_func)
|
|
{
|
|
rb_scope_visibility_t *scope_visi = (rb_scope_visibility_t *)&rb_vm_cref()->scope_visi;
|
|
scope_visi->method_visi = method_visi;
|
|
scope_visi->module_func = module_func;
|
|
}
|
|
|
|
void
|
|
rb_scope_visibility_set(rb_method_visibility_t visi)
|
|
{
|
|
vm_cref_set_visibility(visi, FALSE);
|
|
}
|
|
|
|
static void
|
|
rb_scope_module_func_set(void)
|
|
{
|
|
vm_cref_set_visibility(METHOD_VISI_PRIVATE, TRUE);
|
|
}
|
|
|
|
void
|
|
rb_attr(VALUE klass, ID id, int read, int write, int ex)
|
|
{
|
|
ID attriv;
|
|
rb_method_visibility_t visi;
|
|
|
|
if (!ex) {
|
|
visi = METHOD_VISI_PUBLIC;
|
|
}
|
|
else {
|
|
switch (rb_scope_visibility_get()) {
|
|
case METHOD_VISI_PRIVATE:
|
|
if (rb_scope_module_func_check()) {
|
|
rb_warning("attribute accessor as module_function");
|
|
}
|
|
visi = METHOD_VISI_PRIVATE;
|
|
break;
|
|
case METHOD_VISI_PROTECTED:
|
|
visi = METHOD_VISI_PROTECTED;
|
|
break;
|
|
default:
|
|
visi = METHOD_VISI_PUBLIC;
|
|
break;
|
|
}
|
|
}
|
|
|
|
attriv = rb_intern_str(rb_sprintf("@%"PRIsVALUE, rb_id2str(id)));
|
|
if (read) {
|
|
rb_add_method(klass, id, VM_METHOD_TYPE_IVAR, (void *)attriv, visi);
|
|
}
|
|
if (write) {
|
|
rb_add_method(klass, rb_id_attrset(id), VM_METHOD_TYPE_ATTRSET, (void *)attriv, visi);
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_undef(VALUE klass, ID id)
|
|
{
|
|
rb_method_entry_t *me;
|
|
|
|
if (NIL_P(klass)) {
|
|
rb_raise(rb_eTypeError, "no class to undef method");
|
|
}
|
|
rb_frozen_class_p(klass);
|
|
if (id == object_id || id == id__send__ || id == idInitialize) {
|
|
rb_warn("undefining `%s' may cause serious problems", rb_id2name(id));
|
|
}
|
|
|
|
me = search_method(klass, id, 0);
|
|
|
|
if (UNDEFINED_METHOD_ENTRY_P(me) ||
|
|
UNDEFINED_REFINED_METHOD_P(me->def)) {
|
|
rb_method_name_error(klass, rb_id2str(id));
|
|
}
|
|
|
|
rb_add_method(klass, id, VM_METHOD_TYPE_UNDEF, 0, METHOD_VISI_PUBLIC);
|
|
|
|
CALL_METHOD_HOOK(klass, undefined, id);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* undef_method(symbol) -> self
|
|
* undef_method(string) -> self
|
|
*
|
|
* Prevents the current class from responding to calls to the named
|
|
* method. Contrast this with <code>remove_method</code>, which deletes
|
|
* the method from the particular class; Ruby will still search
|
|
* superclasses and mixed-in modules for a possible receiver.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class Parent
|
|
* def hello
|
|
* puts "In parent"
|
|
* end
|
|
* end
|
|
* class Child < Parent
|
|
* def hello
|
|
* puts "In child"
|
|
* end
|
|
* end
|
|
*
|
|
*
|
|
* c = Child.new
|
|
* c.hello
|
|
*
|
|
*
|
|
* class Child
|
|
* remove_method :hello # remove from child, still in parent
|
|
* end
|
|
* c.hello
|
|
*
|
|
*
|
|
* class Child
|
|
* undef_method :hello # prevent any calls to 'hello'
|
|
* end
|
|
* c.hello
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* In child
|
|
* In parent
|
|
* prog.rb:23: undefined method `hello' for #<Child:0x401b3bb4> (NoMethodError)
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_undef_method(int argc, VALUE *argv, VALUE mod)
|
|
{
|
|
int i;
|
|
for (i = 0; i < argc; i++) {
|
|
VALUE v = argv[i];
|
|
ID id = rb_check_id(&v);
|
|
if (!id) {
|
|
rb_method_name_error(mod, v);
|
|
}
|
|
rb_undef(mod, id);
|
|
}
|
|
return mod;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.method_defined?(symbol) -> true or false
|
|
* mod.method_defined?(string) -> true or false
|
|
*
|
|
* Returns +true+ if the named method is defined by
|
|
* _mod_ (or its included modules and, if _mod_ is a class,
|
|
* its ancestors). Public and protected methods are matched.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module A
|
|
* def method1() end
|
|
* def protected_method1() end
|
|
* protected :protected_method1
|
|
* end
|
|
* class B
|
|
* def method2() end
|
|
* def private_method2() end
|
|
* private :private_method2
|
|
* end
|
|
* class C < B
|
|
* include A
|
|
* def method3() end
|
|
* end
|
|
*
|
|
* A.method_defined? :method1 #=> true
|
|
* C.method_defined? "method1" #=> true
|
|
* C.method_defined? "method2" #=> true
|
|
* C.method_defined? "method3" #=> true
|
|
* C.method_defined? "protected_method1" #=> true
|
|
* C.method_defined? "method4" #=> false
|
|
* C.method_defined? "private_method2" #=> false
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_method_defined(VALUE mod, VALUE mid)
|
|
{
|
|
ID id = rb_check_id(&mid);
|
|
if (!id || !rb_method_boundp(mod, id, 1)) {
|
|
return Qfalse;
|
|
}
|
|
return Qtrue;
|
|
|
|
}
|
|
|
|
static VALUE
|
|
check_definition(VALUE mod, VALUE mid, rb_method_visibility_t visi)
|
|
{
|
|
const rb_method_entry_t *me;
|
|
ID id = rb_check_id(&mid);
|
|
if (!id) return Qfalse;
|
|
me = rb_method_entry_without_refinements(mod, id);
|
|
if (me) {
|
|
if (METHOD_ENTRY_VISI(me) == visi) return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.public_method_defined?(symbol) -> true or false
|
|
* mod.public_method_defined?(string) -> true or false
|
|
*
|
|
* Returns +true+ if the named public method is defined by
|
|
* _mod_ (or its included modules and, if _mod_ is a class,
|
|
* its ancestors).
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module A
|
|
* def method1() end
|
|
* end
|
|
* class B
|
|
* protected
|
|
* def method2() end
|
|
* end
|
|
* class C < B
|
|
* include A
|
|
* def method3() end
|
|
* end
|
|
*
|
|
* A.method_defined? :method1 #=> true
|
|
* C.public_method_defined? "method1" #=> true
|
|
* C.public_method_defined? "method2" #=> false
|
|
* C.method_defined? "method2" #=> true
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_public_method_defined(VALUE mod, VALUE mid)
|
|
{
|
|
return check_definition(mod, mid, METHOD_VISI_PUBLIC);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.private_method_defined?(symbol) -> true or false
|
|
* mod.private_method_defined?(string) -> true or false
|
|
*
|
|
* Returns +true+ if the named private method is defined by
|
|
* _ mod_ (or its included modules and, if _mod_ is a class,
|
|
* its ancestors).
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module A
|
|
* def method1() end
|
|
* end
|
|
* class B
|
|
* private
|
|
* def method2() end
|
|
* end
|
|
* class C < B
|
|
* include A
|
|
* def method3() end
|
|
* end
|
|
*
|
|
* A.method_defined? :method1 #=> true
|
|
* C.private_method_defined? "method1" #=> false
|
|
* C.private_method_defined? "method2" #=> true
|
|
* C.method_defined? "method2" #=> false
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_private_method_defined(VALUE mod, VALUE mid)
|
|
{
|
|
return check_definition(mod, mid, METHOD_VISI_PRIVATE);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.protected_method_defined?(symbol) -> true or false
|
|
* mod.protected_method_defined?(string) -> true or false
|
|
*
|
|
* Returns +true+ if the named protected method is defined
|
|
* by _mod_ (or its included modules and, if _mod_ is a
|
|
* class, its ancestors).
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module A
|
|
* def method1() end
|
|
* end
|
|
* class B
|
|
* protected
|
|
* def method2() end
|
|
* end
|
|
* class C < B
|
|
* include A
|
|
* def method3() end
|
|
* end
|
|
*
|
|
* A.method_defined? :method1 #=> true
|
|
* C.protected_method_defined? "method1" #=> false
|
|
* C.protected_method_defined? "method2" #=> true
|
|
* C.method_defined? "method2" #=> true
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_protected_method_defined(VALUE mod, VALUE mid)
|
|
{
|
|
return check_definition(mod, mid, METHOD_VISI_PROTECTED);
|
|
}
|
|
|
|
int
|
|
rb_method_entry_eq(const rb_method_entry_t *m1, const rb_method_entry_t *m2)
|
|
{
|
|
return rb_method_definition_eq(m1->def, m2->def);
|
|
}
|
|
|
|
static const rb_method_definition_t *
|
|
original_method_definition(const rb_method_definition_t *def)
|
|
{
|
|
again:
|
|
if (def) {
|
|
switch (def->type) {
|
|
case VM_METHOD_TYPE_REFINED:
|
|
if (def->body.refined.orig_me) {
|
|
def = def->body.refined.orig_me->def;
|
|
goto again;
|
|
}
|
|
break;
|
|
case VM_METHOD_TYPE_ALIAS:
|
|
def = def->body.alias.original_me->def;
|
|
goto again;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return def;
|
|
}
|
|
|
|
static int
|
|
rb_method_definition_eq(const rb_method_definition_t *d1, const rb_method_definition_t *d2)
|
|
{
|
|
d1 = original_method_definition(d1);
|
|
d2 = original_method_definition(d2);
|
|
|
|
if (d1 == d2) return 1;
|
|
if (!d1 || !d2) return 0;
|
|
if (d1->type != d2->type) return 0;
|
|
|
|
switch (d1->type) {
|
|
case VM_METHOD_TYPE_ISEQ:
|
|
return d1->body.iseq.iseqptr == d2->body.iseq.iseqptr;
|
|
case VM_METHOD_TYPE_CFUNC:
|
|
return
|
|
d1->body.cfunc.func == d2->body.cfunc.func &&
|
|
d1->body.cfunc.argc == d2->body.cfunc.argc;
|
|
case VM_METHOD_TYPE_ATTRSET:
|
|
case VM_METHOD_TYPE_IVAR:
|
|
return d1->body.attr.id == d2->body.attr.id;
|
|
case VM_METHOD_TYPE_BMETHOD:
|
|
return RTEST(rb_equal(d1->body.proc, d2->body.proc));
|
|
case VM_METHOD_TYPE_MISSING:
|
|
return d1->original_id == d2->original_id;
|
|
case VM_METHOD_TYPE_ZSUPER:
|
|
case VM_METHOD_TYPE_NOTIMPLEMENTED:
|
|
case VM_METHOD_TYPE_UNDEF:
|
|
return 1;
|
|
case VM_METHOD_TYPE_OPTIMIZED:
|
|
return d1->body.optimize_type == d2->body.optimize_type;
|
|
case VM_METHOD_TYPE_REFINED:
|
|
case VM_METHOD_TYPE_ALIAS:
|
|
break;
|
|
}
|
|
rb_bug("rb_method_definition_eq: unsupported type: %d\n", d1->type);
|
|
}
|
|
|
|
static st_index_t
|
|
rb_hash_method_definition(st_index_t hash, const rb_method_definition_t *def)
|
|
{
|
|
hash = rb_hash_uint(hash, def->type);
|
|
def = original_method_definition(def);
|
|
|
|
if (!def) return hash;
|
|
|
|
switch (def->type) {
|
|
case VM_METHOD_TYPE_ISEQ:
|
|
return rb_hash_uint(hash, (st_index_t)def->body.iseq.iseqptr);
|
|
case VM_METHOD_TYPE_CFUNC:
|
|
hash = rb_hash_uint(hash, (st_index_t)def->body.cfunc.func);
|
|
return rb_hash_uint(hash, def->body.cfunc.argc);
|
|
case VM_METHOD_TYPE_ATTRSET:
|
|
case VM_METHOD_TYPE_IVAR:
|
|
return rb_hash_uint(hash, def->body.attr.id);
|
|
case VM_METHOD_TYPE_BMETHOD:
|
|
return rb_hash_proc(hash, def->body.proc);
|
|
case VM_METHOD_TYPE_MISSING:
|
|
return rb_hash_uint(hash, def->original_id);
|
|
case VM_METHOD_TYPE_ZSUPER:
|
|
case VM_METHOD_TYPE_NOTIMPLEMENTED:
|
|
case VM_METHOD_TYPE_UNDEF:
|
|
return hash;
|
|
case VM_METHOD_TYPE_OPTIMIZED:
|
|
return rb_hash_uint(hash, def->body.optimize_type);
|
|
case VM_METHOD_TYPE_REFINED:
|
|
case VM_METHOD_TYPE_ALIAS:
|
|
break; /* unreachable */
|
|
}
|
|
rb_bug("rb_hash_method_definition: unsupported method type (%d)\n", def->type);
|
|
}
|
|
|
|
st_index_t
|
|
rb_hash_method_entry(st_index_t hash, const rb_method_entry_t *me)
|
|
{
|
|
return rb_hash_method_definition(hash, me->def);
|
|
}
|
|
|
|
void
|
|
rb_alias(VALUE klass, ID alias_name, ID original_name)
|
|
{
|
|
const VALUE target_klass = klass;
|
|
VALUE defined_class;
|
|
const rb_method_entry_t *orig_me;
|
|
rb_method_visibility_t visi = METHOD_VISI_UNDEF;
|
|
|
|
if (NIL_P(klass)) {
|
|
rb_raise(rb_eTypeError, "no class to make alias");
|
|
}
|
|
|
|
rb_frozen_class_p(klass);
|
|
|
|
again:
|
|
orig_me = search_method(klass, original_name, &defined_class);
|
|
if (orig_me && orig_me->def->type == VM_METHOD_TYPE_REFINED) {
|
|
orig_me = rb_resolve_refined_method(Qnil, orig_me);
|
|
}
|
|
|
|
if (UNDEFINED_METHOD_ENTRY_P(orig_me) ||
|
|
UNDEFINED_REFINED_METHOD_P(orig_me->def)) {
|
|
if ((!RB_TYPE_P(klass, T_MODULE)) ||
|
|
(orig_me = search_method(rb_cObject, original_name, &defined_class),
|
|
UNDEFINED_METHOD_ENTRY_P(orig_me))) {
|
|
rb_print_undef(klass, original_name, METHOD_VISI_UNDEF);
|
|
}
|
|
}
|
|
|
|
if (orig_me->def->type == VM_METHOD_TYPE_ZSUPER) {
|
|
klass = RCLASS_SUPER(klass);
|
|
original_name = orig_me->def->original_id;
|
|
visi = METHOD_ENTRY_VISI(orig_me);
|
|
goto again;
|
|
}
|
|
|
|
if (visi == METHOD_VISI_UNDEF) visi = METHOD_ENTRY_VISI(orig_me);
|
|
|
|
if (orig_me->defined_class == 0) {
|
|
rb_method_entry_make(target_klass, alias_name, target_klass, visi,
|
|
VM_METHOD_TYPE_ALIAS, NULL, orig_me->called_id,
|
|
(void *)rb_method_entry_clone(orig_me));
|
|
method_added(target_klass, alias_name);
|
|
}
|
|
else {
|
|
rb_method_entry_t *alias_me;
|
|
|
|
alias_me = method_entry_set(target_klass, alias_name, orig_me, visi, orig_me->owner);
|
|
RB_OBJ_WRITE(alias_me, &alias_me->owner, target_klass);
|
|
RB_OBJ_WRITE(alias_me, &alias_me->defined_class, defined_class);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* alias_method(new_name, old_name) -> self
|
|
*
|
|
* Makes <i>new_name</i> a new copy of the method <i>old_name</i>. This can
|
|
* be used to retain access to methods that are overridden.
|
|
*
|
|
* module Mod
|
|
* alias_method :orig_exit, :exit
|
|
* def exit(code=0)
|
|
* puts "Exiting with code #{code}"
|
|
* orig_exit(code)
|
|
* end
|
|
* end
|
|
* include Mod
|
|
* exit(99)
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Exiting with code 99
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_alias_method(VALUE mod, VALUE newname, VALUE oldname)
|
|
{
|
|
ID oldid = rb_check_id(&oldname);
|
|
if (!oldid) {
|
|
rb_print_undef_str(mod, oldname);
|
|
}
|
|
rb_alias(mod, rb_to_id(newname), oldid);
|
|
return mod;
|
|
}
|
|
|
|
static void
|
|
set_method_visibility(VALUE self, int argc, const VALUE *argv, rb_method_visibility_t visi)
|
|
{
|
|
int i;
|
|
|
|
rb_check_frozen(self);
|
|
if (argc == 0) {
|
|
rb_warning("%"PRIsVALUE" with no argument is just ignored",
|
|
QUOTE_ID(rb_frame_callee()));
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
VALUE v = argv[i];
|
|
ID id = rb_check_id(&v);
|
|
if (!id) {
|
|
rb_print_undef_str(self, v);
|
|
}
|
|
rb_export_method(self, id, visi);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
set_visibility(int argc, const VALUE *argv, VALUE module, rb_method_visibility_t visi)
|
|
{
|
|
if (argc == 0) {
|
|
rb_scope_visibility_set(visi);
|
|
}
|
|
else {
|
|
set_method_visibility(module, argc, argv, visi);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* public -> self
|
|
* public(symbol, ...) -> self
|
|
* public(string, ...) -> self
|
|
*
|
|
* With no arguments, sets the default visibility for subsequently
|
|
* defined methods to public. With arguments, sets the named methods to
|
|
* have public visibility.
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_public(int argc, VALUE *argv, VALUE module)
|
|
{
|
|
return set_visibility(argc, argv, module, METHOD_VISI_PUBLIC);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* protected -> self
|
|
* protected(symbol, ...) -> self
|
|
* protected(string, ...) -> self
|
|
*
|
|
* With no arguments, sets the default visibility for subsequently
|
|
* defined methods to protected. With arguments, sets the named methods
|
|
* to have protected visibility.
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_protected(int argc, VALUE *argv, VALUE module)
|
|
{
|
|
return set_visibility(argc, argv, module, METHOD_VISI_PROTECTED);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* private -> self
|
|
* private(symbol, ...) -> self
|
|
* private(string, ...) -> self
|
|
*
|
|
* With no arguments, sets the default visibility for subsequently
|
|
* defined methods to private. With arguments, sets the named methods
|
|
* to have private visibility.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module Mod
|
|
* def a() end
|
|
* def b() end
|
|
* private
|
|
* def c() end
|
|
* private :a
|
|
* end
|
|
* Mod.private_instance_methods #=> [:a, :c]
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_private(int argc, VALUE *argv, VALUE module)
|
|
{
|
|
return set_visibility(argc, argv, module, METHOD_VISI_PRIVATE);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.public_class_method(symbol, ...) -> mod
|
|
* mod.public_class_method(string, ...) -> mod
|
|
*
|
|
* Makes a list of existing class methods public.
|
|
*
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_public_method(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
set_method_visibility(rb_singleton_class(obj), argc, argv, METHOD_VISI_PUBLIC);
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.private_class_method(symbol, ...) -> mod
|
|
* mod.private_class_method(string, ...) -> mod
|
|
*
|
|
* Makes existing class methods private. Often used to hide the default
|
|
* constructor <code>new</code>.
|
|
*
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class SimpleSingleton # Not thread safe
|
|
* private_class_method :new
|
|
* def SimpleSingleton.create(*args, &block)
|
|
* @me = new(*args, &block) if ! @me
|
|
* @me
|
|
* end
|
|
* end
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_private_method(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
set_method_visibility(rb_singleton_class(obj), argc, argv, METHOD_VISI_PRIVATE);
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* public
|
|
* public(symbol, ...)
|
|
* public(string, ...)
|
|
*
|
|
* With no arguments, sets the default visibility for subsequently
|
|
* defined methods to public. With arguments, sets the named methods to
|
|
* have public visibility.
|
|
*
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
top_public(int argc, VALUE *argv)
|
|
{
|
|
return rb_mod_public(argc, argv, rb_cObject);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* private
|
|
* private(symbol, ...)
|
|
* private(string, ...)
|
|
*
|
|
* With no arguments, sets the default visibility for subsequently
|
|
* defined methods to private. With arguments, sets the named methods to
|
|
* have private visibility.
|
|
*
|
|
* String arguments are converted to symbols.
|
|
*/
|
|
static VALUE
|
|
top_private(int argc, VALUE *argv)
|
|
{
|
|
return rb_mod_private(argc, argv, rb_cObject);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* module_function(symbol, ...) -> self
|
|
* module_function(string, ...) -> self
|
|
*
|
|
* Creates module functions for the named methods. These functions may
|
|
* be called with the module as a receiver, and also become available
|
|
* as instance methods to classes that mix in the module. Module
|
|
* functions are copies of the original, and so may be changed
|
|
* independently. The instance-method versions are made private. If
|
|
* used with no arguments, subsequently defined methods become module
|
|
* functions.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* module Mod
|
|
* def one
|
|
* "This is one"
|
|
* end
|
|
* module_function :one
|
|
* end
|
|
* class Cls
|
|
* include Mod
|
|
* def call_one
|
|
* one
|
|
* end
|
|
* end
|
|
* Mod.one #=> "This is one"
|
|
* c = Cls.new
|
|
* c.call_one #=> "This is one"
|
|
* module Mod
|
|
* def one
|
|
* "This is the new one"
|
|
* end
|
|
* end
|
|
* Mod.one #=> "This is one"
|
|
* c.call_one #=> "This is the new one"
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_modfunc(int argc, VALUE *argv, VALUE module)
|
|
{
|
|
int i;
|
|
ID id;
|
|
const rb_method_entry_t *me;
|
|
|
|
if (!RB_TYPE_P(module, T_MODULE)) {
|
|
rb_raise(rb_eTypeError, "module_function must be called for modules");
|
|
}
|
|
|
|
if (argc == 0) {
|
|
rb_scope_module_func_set();
|
|
return module;
|
|
}
|
|
|
|
set_method_visibility(module, argc, argv, METHOD_VISI_PRIVATE);
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
VALUE m = module;
|
|
|
|
id = rb_to_id(argv[i]);
|
|
for (;;) {
|
|
me = search_method(m, id, 0);
|
|
if (me == 0) {
|
|
me = search_method(rb_cObject, id, 0);
|
|
}
|
|
if (UNDEFINED_METHOD_ENTRY_P(me)) {
|
|
rb_print_undef(module, id, METHOD_VISI_UNDEF);
|
|
}
|
|
if (me->def->type != VM_METHOD_TYPE_ZSUPER) {
|
|
break; /* normal case: need not to follow 'super' link */
|
|
}
|
|
m = RCLASS_SUPER(m);
|
|
if (!m)
|
|
break;
|
|
}
|
|
rb_method_entry_set(rb_singleton_class(module), id, me, METHOD_VISI_PUBLIC);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
int
|
|
rb_method_basic_definition_p(VALUE klass, ID id)
|
|
{
|
|
const rb_method_entry_t *me;
|
|
if (!klass) return TRUE; /* hidden object cannot be overridden */
|
|
me = rb_method_entry(klass, id);
|
|
return (me && METHOD_ENTRY_BASIC(me)) ? TRUE : FALSE;
|
|
}
|
|
|
|
static VALUE
|
|
call_method_entry(rb_thread_t *th, VALUE defined_class, VALUE obj, ID id,
|
|
const rb_method_entry_t *me, int argc, const VALUE *argv)
|
|
{
|
|
const rb_callable_method_entry_t *cme =
|
|
prepare_callable_method_entry(defined_class, id, me);
|
|
const rb_block_t *passed_block = th->passed_block;
|
|
VALUE result = vm_call0(th, obj, id, argc, argv, cme);
|
|
th->passed_block = passed_block;
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
basic_obj_respond_to_missing(rb_thread_t *th, VALUE klass, VALUE obj,
|
|
VALUE mid, VALUE priv)
|
|
{
|
|
VALUE defined_class, args[2];
|
|
const ID rtmid = idRespond_to_missing;
|
|
const rb_method_entry_t *const me =
|
|
method_entry_get(klass, rtmid, &defined_class);
|
|
|
|
if (!me || METHOD_ENTRY_BASIC(me)) return Qundef;
|
|
args[0] = mid;
|
|
args[1] = priv;
|
|
return call_method_entry(th, defined_class, obj, rtmid, me, 2, args);
|
|
}
|
|
|
|
static inline int
|
|
basic_obj_respond_to(rb_thread_t *th, VALUE obj, ID id, int pub)
|
|
{
|
|
VALUE klass = CLASS_OF(obj);
|
|
VALUE ret;
|
|
|
|
switch (rb_method_boundp(klass, id, pub|BOUND_RESPONDS)) {
|
|
case 2:
|
|
return FALSE;
|
|
case 0:
|
|
ret = basic_obj_respond_to_missing(th, klass, obj, ID2SYM(id),
|
|
pub ? Qfalse : Qtrue);
|
|
return RTEST(ret) && ret != Qundef;
|
|
default:
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
static int
|
|
vm_respond_to(rb_thread_t *th, VALUE klass, VALUE obj, ID id, int priv)
|
|
{
|
|
VALUE defined_class;
|
|
const ID resid = idRespond_to;
|
|
const rb_method_entry_t *const me =
|
|
method_entry_get(klass, resid, &defined_class);
|
|
|
|
if (!me) return -1;
|
|
if (METHOD_ENTRY_BASIC(me)) {
|
|
return -1;
|
|
}
|
|
else {
|
|
int argc = 1;
|
|
VALUE args[2];
|
|
VALUE result;
|
|
|
|
args[0] = ID2SYM(id);
|
|
args[1] = Qtrue;
|
|
if (priv) {
|
|
argc = rb_method_entry_arity(me);
|
|
if (argc > 2) {
|
|
rb_raise(rb_eArgError,
|
|
"respond_to? must accept 1 or 2 arguments (requires %d)",
|
|
argc);
|
|
}
|
|
if (argc != 1) {
|
|
argc = 2;
|
|
}
|
|
else if (!NIL_P(ruby_verbose)) {
|
|
VALUE location = rb_method_entry_location(me);
|
|
rb_warn("%"PRIsVALUE"%c""respond_to?(:%"PRIsVALUE") uses"
|
|
" the deprecated method signature, which takes one parameter",
|
|
(FL_TEST(klass, FL_SINGLETON) ? obj : klass),
|
|
(FL_TEST(klass, FL_SINGLETON) ? '.' : '#'),
|
|
QUOTE_ID(id));
|
|
if (!NIL_P(location)) {
|
|
VALUE path = RARRAY_AREF(location, 0);
|
|
VALUE line = RARRAY_AREF(location, 1);
|
|
if (!NIL_P(path)) {
|
|
rb_compile_warn(RSTRING_PTR(path), NUM2INT(line),
|
|
"respond_to? is defined here");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
result = call_method_entry(th, defined_class, obj, resid, me, argc, args);
|
|
return RTEST(result);
|
|
}
|
|
}
|
|
|
|
int
|
|
rb_obj_respond_to(VALUE obj, ID id, int priv)
|
|
{
|
|
rb_thread_t *th = GET_THREAD();
|
|
VALUE klass = CLASS_OF(obj);
|
|
int ret = vm_respond_to(th, klass, obj, id, priv);
|
|
if (ret == -1) ret = basic_obj_respond_to(th, obj, id, !priv);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
rb_respond_to(VALUE obj, ID id)
|
|
{
|
|
return rb_obj_respond_to(obj, id, FALSE);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.respond_to?(symbol, include_all=false) -> true or false
|
|
* obj.respond_to?(string, include_all=false) -> true or false
|
|
*
|
|
* Returns +true+ if _obj_ responds to the given method. Private and
|
|
* protected methods are included in the search only if the optional
|
|
* second parameter evaluates to +true+.
|
|
*
|
|
* If the method is not implemented,
|
|
* as Process.fork on Windows, File.lchmod on GNU/Linux, etc.,
|
|
* false is returned.
|
|
*
|
|
* If the method is not defined, <code>respond_to_missing?</code>
|
|
* method is called and the result is returned.
|
|
*
|
|
* When the method name parameter is given as a string, the string is
|
|
* converted to a symbol.
|
|
*/
|
|
|
|
static VALUE
|
|
obj_respond_to(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE mid, priv;
|
|
ID id;
|
|
rb_thread_t *th = GET_THREAD();
|
|
|
|
rb_scan_args(argc, argv, "11", &mid, &priv);
|
|
if (!(id = rb_check_id(&mid))) {
|
|
VALUE ret = basic_obj_respond_to_missing(th, CLASS_OF(obj), obj,
|
|
rb_to_symbol(mid), priv);
|
|
if (ret == Qundef) ret = Qfalse;
|
|
return ret;
|
|
}
|
|
if (basic_obj_respond_to(th, obj, id, !RTEST(priv)))
|
|
return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.respond_to_missing?(symbol, include_all) -> true or false
|
|
* obj.respond_to_missing?(string, include_all) -> true or false
|
|
*
|
|
* DO NOT USE THIS DIRECTLY.
|
|
*
|
|
* Hook method to return whether the _obj_ can respond to _id_ method
|
|
* or not.
|
|
*
|
|
* When the method name parameter is given as a string, the string is
|
|
* converted to a symbol.
|
|
*
|
|
* See #respond_to?, and the example of BasicObject.
|
|
*/
|
|
static VALUE
|
|
obj_respond_to_missing(VALUE obj, VALUE mid, VALUE priv)
|
|
{
|
|
return Qfalse;
|
|
}
|
|
|
|
void
|
|
Init_Method(void)
|
|
{
|
|
#if OPT_GLOBAL_METHOD_CACHE
|
|
char *ptr = getenv("RUBY_GLOBAL_METHOD_CACHE_SIZE");
|
|
int val;
|
|
|
|
if (ptr != NULL && (val = atoi(ptr)) > 0) {
|
|
if ((val & (val - 1)) == 0) { /* ensure val is a power of 2 */
|
|
global_method_cache.size = val;
|
|
global_method_cache.mask = val - 1;
|
|
}
|
|
else {
|
|
fprintf(stderr, "RUBY_GLOBAL_METHOD_CACHE_SIZE was set to %d but ignored because the value is not a power of 2.\n", val);
|
|
}
|
|
}
|
|
|
|
global_method_cache.entries = (struct cache_entry *)calloc(global_method_cache.size, sizeof(struct cache_entry));
|
|
if (global_method_cache.entries == NULL) {
|
|
fprintf(stderr, "[FATAL] failed to allocate memory\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
Init_eval_method(void)
|
|
{
|
|
#undef rb_intern
|
|
#define rb_intern(str) rb_intern_const(str)
|
|
|
|
rb_define_method(rb_mKernel, "respond_to?", obj_respond_to, -1);
|
|
rb_define_method(rb_mKernel, "respond_to_missing?", obj_respond_to_missing, 2);
|
|
|
|
rb_define_private_method(rb_cModule, "remove_method", rb_mod_remove_method, -1);
|
|
rb_define_private_method(rb_cModule, "undef_method", rb_mod_undef_method, -1);
|
|
rb_define_private_method(rb_cModule, "alias_method", rb_mod_alias_method, 2);
|
|
rb_define_private_method(rb_cModule, "public", rb_mod_public, -1);
|
|
rb_define_private_method(rb_cModule, "protected", rb_mod_protected, -1);
|
|
rb_define_private_method(rb_cModule, "private", rb_mod_private, -1);
|
|
rb_define_private_method(rb_cModule, "module_function", rb_mod_modfunc, -1);
|
|
|
|
rb_define_method(rb_cModule, "method_defined?", rb_mod_method_defined, 1);
|
|
rb_define_method(rb_cModule, "public_method_defined?", rb_mod_public_method_defined, 1);
|
|
rb_define_method(rb_cModule, "private_method_defined?", rb_mod_private_method_defined, 1);
|
|
rb_define_method(rb_cModule, "protected_method_defined?", rb_mod_protected_method_defined, 1);
|
|
rb_define_method(rb_cModule, "public_class_method", rb_mod_public_method, -1);
|
|
rb_define_method(rb_cModule, "private_class_method", rb_mod_private_method, -1);
|
|
|
|
rb_define_private_method(rb_singleton_class(rb_vm_top_self()),
|
|
"public", top_public, -1);
|
|
rb_define_private_method(rb_singleton_class(rb_vm_top_self()),
|
|
"private", top_private, -1);
|
|
|
|
{
|
|
#define REPLICATE_METHOD(klass, id) do { \
|
|
const rb_method_entry_t *me = rb_method_entry((klass), (id)); \
|
|
rb_method_entry_set((klass), (id), me, METHOD_ENTRY_VISI(me)); \
|
|
} while (0)
|
|
|
|
REPLICATE_METHOD(rb_eException, idMethodMissing);
|
|
REPLICATE_METHOD(rb_eException, idRespond_to);
|
|
REPLICATE_METHOD(rb_eException, idRespond_to_missing);
|
|
}
|
|
}
|