Downloads uri
to path
if necessary. If no path is given, it just passes the data.
Returns a relative path from the given base_directory
to the receiver.
If self
is absolute, then base_directory
must be absolute too.
If self
is relative, then base_directory
must be relative too.
This method doesn’t access the filesystem. It assumes no symlinks.
ArgumentError
is raised when it cannot find a relative path.
Returns the class for the given object
.
class A def foo ObjectSpace::trace_object_allocations do obj = Object.new p "#{ObjectSpace::allocation_class_path(obj)}" end end end A.new.foo #=> "Class"
See ::trace_object_allocations
for more information and examples.
Returns the size of memory allocated by malloc().
Only available if ruby was built with CALC_EXACT_MALLOC_SIZE
.
The number of paths in the ‘$LOAD_PATH` from activated gems. Used to prioritize `-I` and `ENV` entries during `require`.
Returns the value of Gem.source_date_epoch_string
, as a Time
object.
This is used throughout RubyGems for enabling reproducible builds.
Deduce Ruby’s –program-prefix and –program-suffix from its install name
Should be implemented by a extended class.
tsort_each_child
is used to iterate for child nodes of node.
Returns a new lazy enumerator with the concatenated results of running block
once for every element in the lazy enumerator.
["foo", "bar"].lazy.flat_map {|i| i.each_char.lazy}.force #=> ["f", "o", "o", "b", "a", "r"]
A value x
returned by block
is decomposed if either of the following conditions is true:
x
responds to both each and force, which means that x
is a lazy enumerator.
x
is an array or responds to to_ary.
Otherwise, x
is contained as-is in the return value.
[{a:1}, {b:2}].lazy.flat_map {|i| i}.force #=> [{:a=>1}, {:b=>2}]
See Zlib::GzipReader
documentation for a description.
Iterate all direct child instruction sequences. Iteration order is implementation/version defined so that people should not rely on the order.
Returns the eigenvector matrix V
Returns the block diagonal eigenvalue matrix D
Similar to fetch()
, but set
contains unique identifiers.
Yields each message to the passed-in block in turn. Equivalent to:
pop3.mails.each do |popmail| .... end
This method raises a POPError
if an error occurs.
Main name of the switch.