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comparison src/share/vm/oops/method.cpp @ 12264:b2e698d2276c

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8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation Summary: Enhance method resolution and resulting data structures, plus some refactoring. Reviewed-by: twisti, acorn, jrose
author drchase
date Fri, 13 Sep 2013 22:38:02 -0400
parents 8947af8a9cec
children 510fbd28919c
comparison
equal deleted inserted replaced
12261:2c98370f2611 12264:b2e698d2276c
507 } 507 }
508 _access_flags.set_loops_flag_init(); 508 _access_flags.set_loops_flag_init();
509 return _access_flags.has_loops(); 509 return _access_flags.has_loops();
510 } 510 }
511 511
512 bool Method::is_final_method(AccessFlags class_access_flags) const {
513 // or "does_not_require_vtable_entry"
514 // overpass can occur, is not final (reuses vtable entry)
515 // private methods get vtable entries for backward class compatibility.
516 if (is_overpass()) return false;
517 return is_final() || class_access_flags.is_final();
518 }
512 519
513 bool Method::is_final_method() const { 520 bool Method::is_final_method() const {
514 // %%% Should return true for private methods also, 521 return is_final_method(method_holder()->access_flags());
515 // since there is no way to override them. 522 }
516 return is_final() || method_holder()->is_final(); 523
517 } 524 bool Method::can_be_statically_bound(AccessFlags class_access_flags) const {
518 525 if (is_final_method(class_access_flags)) return true;
519 526 #ifdef ASSERT
520 bool Method::is_strict_method() const { 527 bool is_nonv = (vtable_index() == nonvirtual_vtable_index);
521 return is_strict(); 528 if (class_access_flags.is_interface()) assert(is_nonv == is_static(), err_msg("is_nonv=%s", is_nonv));
522 } 529 #endif
523 530 assert(valid_vtable_index() || valid_itable_index(), "method must be linked before we ask this question");
531 return vtable_index() == nonvirtual_vtable_index;
532 }
524 533
525 bool Method::can_be_statically_bound() const { 534 bool Method::can_be_statically_bound() const {
526 if (is_final_method()) return true; 535 return can_be_statically_bound(method_holder()->access_flags());
527 return vtable_index() == nonvirtual_vtable_index; 536 }
528 }
529
530 537
531 bool Method::is_accessor() const { 538 bool Method::is_accessor() const {
532 if (code_size() != 5) return false; 539 if (code_size() != 5) return false;
533 if (size_of_parameters() != 1) return false; 540 if (size_of_parameters() != 1) return false;
534 if (java_code_at(0) != Bytecodes::_aload_0 ) return false; 541 if (java_code_at(0) != Bytecodes::_aload_0 ) return false;
965 return true; 972 return true;
966 } 973 }
967 974
968 assert(ik->is_subclass_of(method_holder()), "should be subklass"); 975 assert(ik->is_subclass_of(method_holder()), "should be subklass");
969 assert(ik->vtable() != NULL, "vtable should exist"); 976 assert(ik->vtable() != NULL, "vtable should exist");
970 if (vtable_index() == nonvirtual_vtable_index) { 977 if (!has_vtable_index()) {
971 return false; 978 return false;
972 } else { 979 } else {
973 Method* vt_m = ik->method_at_vtable(vtable_index()); 980 Method* vt_m = ik->method_at_vtable(vtable_index());
974 return vt_m != this; 981 return vt_m != this;
975 } 982 }
1957 1964
1958 #endif //PRODUCT 1965 #endif //PRODUCT
1959 1966
1960 void Method::print_value_on(outputStream* st) const { 1967 void Method::print_value_on(outputStream* st) const {
1961 assert(is_method(), "must be method"); 1968 assert(is_method(), "must be method");
1962 st->print_cr(internal_name()); 1969 st->print(internal_name());
1963 print_address_on(st); 1970 print_address_on(st);
1964 st->print(" "); 1971 st->print(" ");
1965 name()->print_value_on(st); 1972 name()->print_value_on(st);
1966 st->print(" "); 1973 st->print(" ");
1967 signature()->print_value_on(st); 1974 signature()->print_value_on(st);
1968 st->print(" in "); 1975 st->print(" in ");
1969 method_holder()->print_value_on(st); 1976 method_holder()->print_value_on(st);
1977 if (WizardMode) st->print("#%d", _vtable_index);
1970 if (WizardMode) st->print("[%d,%d]", size_of_parameters(), max_locals()); 1978 if (WizardMode) st->print("[%d,%d]", size_of_parameters(), max_locals());
1971 if (WizardMode && code() != NULL) st->print(" ((nmethod*)%p)", code()); 1979 if (WizardMode && code() != NULL) st->print(" ((nmethod*)%p)", code());
1972 } 1980 }
1973 1981
1974 #if INCLUDE_SERVICES 1982 #if INCLUDE_SERVICES