This helps to reduce repetition in code. Instead of doing "TYPE_*"
everywhere, you can do `include Fiddle::Types`, and write the type name
directly.
This PR is to help reduce repetition when writing Fiddle code. Right now
we have to type `TYPE_` everywhere, and you also have to include all of
`Fiddle` to access `TYPE_*` constants. With this change, you can just
include `Fiddle::Types` and it will shorten your code and also you only
have to include those constants.
Here is an example before:
```ruby
require "fiddle"
module MMAP
# All Fiddle constants included
include Fiddle
def self.make_function name, args, ret
ptr = Handle::DEFAULT[name]
func = Function.new ptr, args, ret, name: name
define_singleton_method name, &func.to_proc
end
make_function "munmap", [TYPE_VOIDP, # addr
TYPE_SIZE_T], # len
TYPE_INT
make_function "mmap", [TYPE_VOIDP,
TYPE_SIZE_T,
TYPE_INT,
TYPE_INT,
TYPE_INT,
TYPE_INT], TYPE_VOIDP
make_function "mprotect", [TYPE_VOIDP, TYPE_SIZE_T, TYPE_INT], TYPE_INT
end
```
After:
```ruby
require "fiddle"
module MMAP
# Only type names included
include Fiddle::Types
def self.make_function name, args, ret
ptr = Fiddle::Handle::DEFAULT[name]
func = Fiddle::Function.new ptr, args, ret, name: name
define_singleton_method name, &func.to_proc
end
make_function "munmap", [VOIDP, # addr
SIZE_T], # len
INT
make_function "mmap", [VOIDP, SIZE_T, INT, INT, INT, INT], VOIDP
make_function "mprotect", [VOIDP, SIZE_T, INT], INT
end
```
We only need to import the type names, and you don't have to type
`TYPE_` over and over. I think this makes Fiddle code easier to read.
49fa7233e5
Co-authored-by: Sutou Kouhei <kou@clear-code.com>
This commit adds constants for unsigned values. Currently we can use `-`
to mean "unsigned", but I think having a specific name makes Fiddle more
user friendly. This commit continues to support `-`, but introduces
negative constants with "unsigned" names
I think this will help to eliminate [this
code](3a56bf0bcc/lib/mjit/c_type.rb (L31-L38))
2bef0f1082
Co-authored-by: Sutou Kouhei <kou@clear-code.com>
I don't use tool/sync_default_gem.rb because the last sync was incomplete.
Co-authored-by: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Co-authored-by: Alan Wu <XrXr@users.noreply.github.com>
Co-authored-by: sinisterchipmunk <sinisterchipmunk@gmail.com>
Co-authored-by: Sutou Kouhei <kou@clear-code.com>
Add rb_fiddle_ prefix to conversion functions.h to keep backward
compatibility but value_to_generic() isn't safe for TYPE_CONST_STRING
and not String src. Use rb_fiddle_value_to_generic() instead.
0ffcaa39e5
* Allow access to a struct's underlying memory with `struct[offset, length]`.
* Make accessing a struct's underlying memory more convenient.
* refactor memory access unit tests for improved clarity
c082c81bb5
* Fix a failing test
This commit fixes the following failure:
```
1) Failure:
Fiddle::TestImport#test_no_message_with_debug [/Users/mrkn/src/github.com/ruby/fiddle/test/fiddle/test_import.rb:152]:
1. [2/2] Assertion for "stderr"
| <[]> expected but was
| <["Exception `NameError' at /Users/mrkn/.rbenv/versions/2.5.1/lib/ruby/2.5.0/fiddle/import.rb:157 - uninitialized constant Fiddle::Function::STDCALL"]>.
```
* Stop using Bundler.with_clean_env
* Clear existing Ruby environment variables on test_no_message_with_debug
13133ddec8
so SIZEOF_LONG_LONG is not always available.
We have to check its defined?-ness before using.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62450 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/fiddle/test_func.rb (test_string): this test break String buffer
by `strcpy` ("000" -> "123"). However, the string literal "000" with
`frozen_string_literal: true` returns a string object from frozen
string pool. So that after this test "000" from fstring pool becomes
"123" (modified string). 'test/date/' uses "000" (as fstring) and tests
are fails (we could check with `make test-all TESTS='fiddle date'`).
* test/fiddle/test_function.rb: ditto.
* test/fiddle/test_import.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59861 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
tests of fiddle already used customized assertions of ruby core.
* test/fiddle/helper.rb: Use Test::Unit::TestCase for base class of
testcase.
* test/fiddle/test_*.rb: Use assert_raise instead of assert_raises.
Remove needless includes for Test::Unit::Assertions.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/fiddle/test_import.rb (LIBC.fprintf): VC14's `fprintf` is very distinct
name, then, just ignore this test.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57081 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
When you change this to true, you may need to add more tests.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test/fiddle/test_c_union_entity.rb,
test/fiddle/test_cparser.rb, test/fiddle/test_func.rb,
test/fiddle/test_handle.rb, test/fiddle/test_import.rb,
test/fiddle/test_pointer.rb: don't run test if the system
don't support fiddle.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40930 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
CPtr -> Pointer.
* test/fiddle/test_import.rb (Fiddle::TestImport#test_sizeof):
Added the test for the above.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38536 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
