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-- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries
--
-- SmartEiffel is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License, as published by the
-- Free Software Foundation; either version 2, or (at your option) any later
-- version.
-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT
-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-- more details. You should have received a copy of the GNU General Public
-- License along with SmartEiffel; see the file COPYING. If not, write to
-- the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-- MA 02111-1307, USA.
--
-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.
-- - University of Nancy 1 - FRANCE
-- Copyright(C) 2003: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne
-- - University of Nancy 2 - FRANCE
--
-- Dominique COLNET, Suzanne COLLIN, Olivier ZENDRA,
-- Philippe RIBET, Cyril ADRIAN
--
-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
--
class METHOD_INFO
--
-- Unique Global Object in charge of a method_info as
-- describe in the JVM specification.
-- Obviously, the same object is recycled.
--
inherit
GLOBALS
VISITABLE
feature {METHOD_INFO_VISITOR}
accept(visitor: METHOD_INFO_VISITOR) is
do
visitor.visit_method_info(Current)
end
feature {NATIVE_JAVA}
is_synchronized: BOOLEAN
set_synchronized is
do
is_synchronized := True;
end;
feature {JVM}
clear is
do
count := 0
storage.clear
is_synchronized := False
end
write_bytes is
do
echo.print_count("method",count)
jvm.b_put_u2(count)
jvm.b_put_byte_string(storage)
end
feature {RUN_FEATURE,JVM,SWITCH,AGENT_ARGS,AGENT_POOL}
start(flags: INTEGER; name_key, descriptor: STRING;) is
require
not name_key.is_empty
not descriptor.is_empty
do
code_attribute.clear
count := count + 1
access_flags := flags
name_index := constant_pool.idx_utf8(name_key)
descriptor_index := constant_pool.idx_utf8(descriptor)
ensure
access_flags = flags
end
finish is
do
-- access_flag :
if is_synchronized then
access_flags := access_flags + 32
is_synchronized := False
end
append_u2(storage,access_flags)
append_u2(storage,name_index)
append_u2(storage,descriptor_index)
-- attributes_count :
append_u2(storage,1)
code_attribute.store_in(storage)
end
add_init(super: STRING) is
local
ca: like code_attribute
idx: INTEGER
do
start(1,fz_35,fz_29)
ca := code_attribute
ca.opcode_aload_0
idx := constant_pool.idx_methodref3(super,fz_35,fz_29)
ca.opcode_invokespecial(idx,-1)
ca.opcode_return
finish
end
is_static: BOOLEAN is
local
i: INTEGER
do
i := access_flags // 8
Result := i.odd
end
feature {NONE}
count: INTEGER
-- Number of methods.
storage: STRING is
-- To store the final JVM `method_info'.
once
create Result.make(4096)
end
access_flags: INTEGER
name_index: INTEGER
-- Memorize the name_index in the `constant_pool'.
descriptor_index: INTEGER
-- Memorize the descriptor_index in the `constant_pool'.
singleton_memory: METHOD_INFO is
once
Result := Current
end
invariant
is_real_singleton: Current = singleton_memory
end -- METHOD_INFO
|
