Before this commit:
`finish frame' was place holder which indicates that VM loop
needs to return function.
If a C method calls a Ruby methods (a method written by Ruby),
then VM loop will be (re-)invoked. When the Ruby method returns,
then also VM loop should be escaped. `finish frame' has only
one instruction `finish', which returns VM loop function.
VM loop function executes `finish' instruction, then VM loop
function returns itself.
With such mechanism, `leave' instruction (which returns one
frame from current scope) doesn't need to check that this `leave'
should also return from VM loop function.
Strictly, one branch can be removed from `leave' instructon.
Consideration:
However, pushing the `finish frame' needs costs because
it needs several memory accesses. The number of pushing
`finish frame' is greater than I had assumed. Of course,
pushing `finish frame' consumes additional control frame.
Moreover, recent processors has good branch prediction,
with which we can ignore such trivial checking.
After this commit:
Finally, I decide to remove `finish frame' and `finish'
instruction. Some parts of VM depend on `finish frame',
so the new frame flag VM_FRAME_FLAG_FINISH is introduced.
If this frame should escape from VM function loop, then
the result of VM_FRAME_TYPE_FINISH_P(cfp) is true.
`leave' instruction checks this flag every time.
I measured performance on it. However on my environments,
it improves some benchmarks and slows some benchmarks down.
Maybe it is because of C compiler optimization parameters.
I'll re-visit here if this cause problems.
* insns.def (leave, finish): remove finish instruction.
* vm.c, vm_eval.c, vm_exec.c, vm_backtrace.c, vm_dump.c:
apply above changes.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36099 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/test/unit.rb (Test::Unit::Runner#failed): use different color
for Skipped.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* bootstraptest/runner.rb (main): add --color option to the help
message.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36093 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/make-snapshot (package): MKDIR_P is needed as direct macro to
build enc/unicode/name2ctype.h.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36090 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in (RUBY_CPPOUTFILE): check if output is really sent to
specified file to tell if -o option works. [ruby-dev:45742]
[Bug#6591]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36087 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
File.basename and File.dirname support File::ALT_SEPARATOR.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36084 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* eval.c (ruby_eval_main_internal): set nil to the result if nothing
executed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36082 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* include/ruby/ruby.h: public symbols must have default visibility.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36081 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
for few years because:
* NODE is no longer accessible.
* rb_iseq_eval_main crashes without preparing with rb_thread_t.
* some existing APIs calls exit(3) without giving the opportunity to
finalize or handle errors to the client.
* No general-purpose function to compile a source to an iseq are
published in the public headers.
This commit solves the problems.
* include/ruby/ruby.h: Grouped APIs for embedding CRuby interpreter.
(ruby_setup, ruby_compile_main_from_file,
ruby_compile_main_from_string, ruby_eval_main,
ruby_set_script_name): new APIs to embed CRuby.
(ruby_opaque_t) Opaque pointer to an internal data, to NODE or iseq
in particular.
* eval.c (ruby_setup): Similar to ruby_init but returns an error code
instead of exit(3) on error.
(ruby_eval_main): Similar to ruby_exec_node but returns the
evaluation result.
(ruby_eval_main_internal): renamed from ruby_exec_internal.
* ruby.c (toplevel_context): new helper function.
(PREPARE_EVAL_MAIN): moved.
(process_options): refactored with new functions.
(parse_and_compile_main) new helper funciton.
(ruby_compile_main_from_file, ruby_compile_main_from_string) new API
(ruby_set_script_name): new API.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36079 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* regparse.c (is_onechar_cclass): restructured to clarify that c is
used iff found == 1.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This prevents errors introduced by disabling bulitin functions,
which is the sub-effect of -ansi/-std.
Now NetBSD can use -ansi -std=iso9899:199409.
Maybe mingw, cygwin and darwin can also.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36071 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/enc-unicode.rb: add comment why it uses Hash#index.
* enc/unicode/{name2ctype.kwd,name2ctype.src,name2ctype.h.blt}:
update to follow the current name2ctype.h.
FYI current Unicode version is 6.1.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36070 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
response codes added in RFCs 2817 and 4918. [ruby-core:45547]
[Feature #6569]
* lib/net/http/responses.rb: Rename Net::HTTPMultipleChoice to
Net::HTTPMultipleChoices, leaving the former as alias to the
latter for backward compatibitily. [ruby-core:45547]
[Feature #6569]
* lib/net/http/responses.rb: Add comments about unused,
still-in-draft and private extension response codes.
[ruby-core:45547] [Feature #6569]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36068 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: remove -ansi and -std options for lgamma_r() and
finite().
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36065 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: cygwin does not provide some declarations in strict
ANSI mode.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36064 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: cygwin does not provide some declarations in strict
ANSI mode.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36063 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
but did emit warnings if -Wuninitialized was set. Assigning
NULL instead if pfetch_prev should suffice the situation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36060 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Makefile.in (.c.i): add warnflags to make the result consistent with
compilation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36058 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
VC++ optimized. That is, C++ habits are often contaminated into
various headers. Most frequent situation is the use of //
comments. We bypass ANSI C mode for them. Otherwise extension
libs cannot include those headers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36056 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* include/ruby/win32.h: get rid of C99 style one line comments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36055 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* encoding.c (enc_alias_internal): use strdup defined as macro.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36054 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in (RUBY_NACL_CHECK_PEPPER_TYPES): check only on nacl.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36053 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* thread_pthread.c (get_stack): define guard only when it is used.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36052 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c (rb_exec_fillarg): get rid of SIZE_T_MAX which may need
more headers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36051 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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