Top Level Namespace
Instance Method Summary
-
Digest(name) ⇒ digest_subclass
Returns a Digest subclass by
name
in a thread-safe manner even when on-demand loading is involved.
Instance Method Details
Digest(name) ⇒ digest_subclass
Returns a Digest
subclass by name
in a thread-safe manner even when on-demand loading is involved.
require 'digest'
Digest("MD5")
# => Digest::MD5
Digest(:SHA256)
# => Digest::SHA256
Digest(:Foo)
# => LoadError: library not found for class Digest::Foo -- digest/foo
# File 'ext/digest/lib/digest.rb', line 96
def Digest(name) const = name.to_sym Digest::REQUIRE_MUTEX.synchronize { # Ignore autoload's because it is void when we have #const_missing Digest.const_missing(const) } rescue LoadError # Constants do not necessarily rely on digest/*. if Digest.const_defined?(const) Digest.const_get(const) else raise end end