Converts the contents of the database to an array of [key, value] arrays, and returns it.
Returns digest_obj.hexdigest().
Similar to Object#to_enum, except it returns a lazy enumerator. This makes it easy to define Enumerable methods that will naturally remain lazy if called from a lazy enumerator.
For example, continuing from the example in Object#to_enum:
# See Object#to_enum for the definition of repeat r = 1..Float::INFINITY r.repeat(2).first(5) # => [1, 1, 2, 2, 3] r.repeat(2).class # => Enumerator r.repeat(2).map{|n| n ** 2}.first(5) # => endless loop! # works naturally on lazy enumerator: r.lazy.repeat(2).class # => Enumerator::Lazy r.lazy.repeat(2).map{|n| n ** 2}.first(5) # => [1, 1, 4, 4, 9]
Returns the Fiddle::Pointer of this handle.
Get the underlying pointer for ruby object val and return it as a Fiddle::Pointer object.
Returns the integer memory location of this pointer.
Cast this pointer to a ruby object.
ptr.to_str => string ptr.to_str(len) => string
Returns the pointer contents as a string.
When called with no arguments, this method will return the contents with the length of this pointer’s size.
When called with len, a string of len bytes will be returned.
See to_s
Same as IO.
Returns serialized iseq binary format data as a String object. A corresponding iseq object is created by RubyVM::InstructionSequence.load_from_binary() method.
String extra_data will be saved with binary data. You can access this data with RubyVM::InstructionSequence.load_from_binary_extra_data(binary).
Note that the translated binary data is not portable. You can not move this binary data to another machine. You can not use the binary data which is created by another version/another architecture of Ruby.
Returns the row as a CSV String. Headers are not included:
source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n" table = CSV.parse(source, headers: true) row = table[0] row.to_csv # => "foo,0\n"
Returns the table as CSV string. See Options for Generating.
Defaults option write_headers to true:
source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n" table = CSV.parse(source, headers: true) table.to_csv # => "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
Omits the headers if option write_headers is given as false (see {Option write_headers}):
table.to_csv(write_headers: false) # => "foo,0\nbar,1\nbaz,2\n"
Limit rows if option limit is given like 2:
table.to_csv(limit: 2) # => "Name,Value\nfoo,0\nbar,1\n"
Convert an object reference id to an object.
This implementation looks up the reference id in the local object space and returns the object it refers to.