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  1. rbconfig ruby
  2. fiddle ruby_free
  3. fiddle build_ruby_platform
  4. rake ruby
  5. rubygems/defaults ruby_engine

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Fiddle::Function#call(*args) -> Integer|DL::CPtr|nil (18132.0)

関数を呼び出します。

...出します。

Fiddle::Function.new で指定した引数と返り値の型に基いて
Ruby
のオブジェクトを適切に C のデータに変換して C の関数を呼び出し、
その返り値を Ruby のオブジェクトに変換して返します。

引数の変換は以下の通り...
...g
Ruby
の整数を C の整数に変換します。

: double/float
Ruby
の整数 or 浮動小数点数を C の浮動小数点数に変換します

返り値の変換は以下の通りです。

: void
nil を返します

: (unsigned) char/short/int/long/long long
C の整数を Ruby...

Method#call(*args) -> object (15121.0)

メソッドオブジェクトに封入されているメソッドを起動します。

...f に渡される引数。

@see UnboundMethod#bind_call
@see spec/safelevel

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...
...@param args self に渡される引数。

@see UnboundMethod#bind_call

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...

Method#call(*args) { ... } -> object (15121.0)

メソッドオブジェクトに封入されているメソッドを起動します。

...f に渡される引数。

@see UnboundMethod#bind_call
@see spec/safelevel

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...
...@param args self に渡される引数。

@see UnboundMethod#bind_call

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...

Method#call(*args) -> object (15115.0)

メソッドオブジェクトに封入されているメソッドを起動します。

...せん。


@param args self に渡される引数。

@see spec/safelevel

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...

Method#call(*args) { ... } -> object (15115.0)

メソッドオブジェクトに封入されているメソッドを起動します。

...せん。


@param args self に渡される引数。

@see spec/safelevel

//emlist[例][ruby]{
class Foo
def foo(arg)
"foo called with arg #{arg}"
end
end

m = Foo.new.method(:foo) # => #<Method: Foo#foo>
m[1] # => "foo called with arg 1"
m.call(2) # => "foo called with arg 2"
//}...

絞り込み条件を変える

Proc#call(*arg) -> () (15114.0)

手続きオブジェクトを実行してその結果を返します。

...す。

//emlist[例][ruby]{
def sign(n)
case n
when lambda{|n| n > 0} then 1
when lambda{|n| n < 0} then -1
else 0
end
end

p sign(-4) #=> -1
p sign(0) #=> 0
p sign(7) #=> 1
//}

また、以下のような syntactic sugar もあります。

//emlist[例][ruby]{
fib = lambda{|n|
case...

Module#ruby2_keywords(method_name, ...) -> nil (6164.0)

For the given method names, marks the method as passing keywords through a normal argument splat. This should only be called on methods that accept an argument splat (`*args`) but not explicit keywords or a keyword splat. It marks the method such that if the method is called with keyword arguments, the final hash argument is marked with a special flag such that if it is the final element of a normal argument splat to another method call, and that method call does not include explicit keywords or a keyword splat, the final element is interpreted as keywords. In other words, keywords will be passed through the method to other methods.

...s passing keywords through
a normal argument splat. This should only be called on methods that
accept an argument splat (`*args`) but not explicit keywords or a
keyword splat. It marks the method such that if the method is called
with keyword arguments, the final hash argument is marked with a spe...
...cial
flag such that if it is the final element of a normal argument splat to
another method call, and that method call does not include explicit
keywords or a keyword splat, the final element is interpreted as
keywords. In other words, keywords will be passed through the method to
other methods.

Th...
...for backwards compatibility with Ruby versions before
2.7.

This method will probably be removed at some point, as it exists only
for backwards compatibility. As it does not exist in Ruby versions
before 2.7, check that the module responds to this method before calling
it. Also, be aware that if th...

Proc#ruby2_keywords -> proc (6164.0)

Marks the proc as passing keywords through a normal argument splat. This should only be called on procs that accept an argument splat (`*args`) but not explicit keywords or a keyword splat. It marks the proc such that if the proc is called with keyword arguments, the final hash argument is marked with a special flag such that if it is the final element of a normal argument splat to another method call, and that method call does not include explicit keywords or a keyword splat, the final element is interpreted as keywords. In other words, keywords will be passed through the proc to other methods.

...oc as passing keywords through a normal argument splat. This
should only be called on procs that accept an argument splat (`*args`)
but not explicit keywords or a keyword splat. It marks the proc such
that if the proc is called with keyword arguments, the final hash
argument is marked with a specia...
...l flag such that if it is the final
element of a normal argument splat to another method call, and that
method call does not include explicit keywords or a keyword splat, the
final element is interpreted as keywords. In other words, keywords will
be passed through the proc to other methods.

This s...
...y for backwards compatibility with Ruby versions before
2.7.

This method will probably be removed at some point, as it exists only
for backwards compatibility. As it does not exist in Ruby versions
before 2.7, check that the proc responds to this method before calling
it. Also, be aware that if thi...

UnboundMethod#bind_call(recv, *args) -> object (6127.0)

self を recv に bind して args を引数として呼び出します。

...self を recv に bind して args を引数として呼び出します。

self.bind(recv).call(*args) と同じ意味です。

//emlist[][ruby]{
puts Kernel.instance_method(:inspect).bind_call(BasicObject.new) # => #<BasicObject:0x000055c65e8ea7b8>
//}

@see UnboundMethod#bind, Method#call...

UnboundMethod#bind_call(recv, *args) { ... } -> object (6127.0)

self を recv に bind して args を引数として呼び出します。

...self を recv に bind して args を引数として呼び出します。

self.bind(recv).call(*args) と同じ意味です。

//emlist[][ruby]{
puts Kernel.instance_method(:inspect).bind_call(BasicObject.new) # => #<BasicObject:0x000055c65e8ea7b8>
//}

@see UnboundMethod#bind, Method#call...

絞り込み条件を変える

TracePoint#callee_id -> Symbol | nil (6113.0)

イベントが発生したメソッドの呼ばれた名前を Symbol で返します。 トップレベルであった場合は nil を返します。

...ントフックの外側で実行した場合に発生します。

//emlist[][ruby]{
class C
def method_name
end
alias alias_name method_name
end

trace = TracePoint.new(:call) do |tp|
p [tp.method_id, tp.callee_id] # => [:method_name, :alias_name]
end
trace.enable do
C.new.alias_name
end...

Method#<<(callable) -> Proc (155.0)

self と引数を合成した Proc を返します。

...まず受け取った引数を callable に渡して呼び出し、
その戻り値を self に渡して呼び出した結果を返します。

Method#>> とは呼び出しの順序が逆になります。

@param callable Proc、Method、もしくは任意の call メソッドを持ったオブジ...
...* (3 + 3)
p (method(:f) << method(:g)).call(3) # => 36
//}

//emlist[call を定義したオブジェクトを渡す例][ruby]{
class WordScanner
def self.call(str)
str.scan(/\w+/)
end
end

File.write('testfile', <<~TEXT)
Hello, World!
Hello, Ruby!
TEXT

pipeline = method(:pp) << WordSc...
...anner << File.method(:read)
pipeline.call('testfile') # => ["Hello", "World", "Hello", "Ruby"]
//}

@see Proc#<<, Proc#>>...

Method#>>(callable) -> Proc (155.0)

self と引数を合成した Proc を返します。

...し、
その戻り値を callable に渡して呼び出した結果を返します。

Method#<< とは呼び出しの順序が逆になります。

@param callable Proc、Method、もしくは任意の call メソッドを持ったオブジェクト。

//emlist[例][ruby]{
def f(x)
x * x
end...
...+ (3 * 3)
p (method(:f) >> method(:g)).call(3) # => 18
//}

//emlist[call を定義したオブジェクトを渡す例][ruby]{
class WordScanner
def self.call(str)
str.scan(/\w+/)
end
end

File.write('testfile', <<~TEXT)
Hello, World!
Hello, Ruby!
TEXT

pipeline = File.method(:read) >>...
...WordScanner >> method(:pp)
pipeline.call('testfile') # => ["Hello", "World", "Hello", "Ruby"]
//}

@see Proc#<<, Proc#>>...
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