50 lines
1.4 KiB
Ruby
Vendored
50 lines
1.4 KiB
Ruby
Vendored
module Errno
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#
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# call-seq:
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# Errno.const_defined?(name) -> true or false
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#
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# Returns true if the given name is defined as an errno constant,
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# false otherwise. This method checks both system-defined errno
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# constants and those defined by the superclass.
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#
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# Errno.const_defined?(:ENOENT) #=> true
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# Errno.const_defined?(:EINVAL) #=> true
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# Errno.const_defined?(:UNKNOWN) #=> false
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#
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def Errno.const_defined?(name)
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__errno_defined?(name) or super
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end
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#
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# call-seq:
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# Errno.const_missing(name) -> errno_class
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#
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# Called when an undefined constant is referenced. This method
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# attempts to define the errno constant if it exists in the system,
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# otherwise delegates to the superclass.
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#
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# Errno::ENOENT # triggers const_missing if not yet defined
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# #=> Errno::ENOENT
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#
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def Errno.const_missing(name)
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__errno_define(name) or super
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end
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#
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# call-seq:
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# Errno.constants -> array
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#
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# Returns an array of all errno constant names available on the system.
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# This includes both already defined constants and those that can be
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# dynamically defined.
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#
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# Errno.constants
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# #=> [:EPERM, :ENOENT, :ESRCH, :EINTR, :EIO, ...]
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#
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# Note: Module#constants is defined in mruby-metaprog, so this method
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# may raise NoMethodError if that gem is not available.
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#
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def Errno.constants
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__errno_list(super)
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end
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end
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