Set
the real user ID of the calling process to user. Not available on all platforms.
Set
the real group ID of the calling process to group. Not available on all platforms.
Sets the (user) real and/or effective user IDs of the current process to rid and eid, respectively. A value of -1
for either means to leave that ID unchanged. Not available on all platforms.
Sets the (group) real and/or effective group IDs of the current process to rid and eid, respectively. A value of -1
for either means to leave that ID unchanged. Not available on all platforms.
Sets the (user) real, effective, and saved user IDs of the current process to rid, eid, and sid respectively. A value of -1
for any value means to leave that ID unchanged. Not available on all platforms.
Sets the (group) real, effective, and saved user IDs of the current process to rid, eid, and sid respectively. A value of -1
for any value means to leave that ID unchanged. Not available on all platforms.
Load extra data embed into binary format String
object.
Foo ||= bar
becomes
defined?(Foo) ? Foo : Foo = bar
Return the best specification that contains the file matching path
, among those already activated.
Reset nil attributes to their default values to make the spec valid
Return the best specification in the record that contains the file matching path
, among those already activated.
When there is an invalid block with a keyword missing an end right before another end, it is unclear where which keyword is missing the end
Take this example:
class Dog # 1 def bark # 2 puts "woof" # 3 end # 4
However due to github.com/ruby/syntax_suggest/issues/32 the problem line will be identified as:
> class Dog # 1
Because lines 2, 3, and 4 are technically valid code and are expanded first, deemed valid, and hidden. We need to un-hide the matching end line 4. Also work backwards and if there’s a mis-matched keyword, show it too
Parses the most indented lines into blocks that are marked and added to the frontier
Attempts to return an array, based on the given object
.
If object
is an array, returns object
.
Otherwise if object
responds to :to_ary
. calls object.to_ary
: if the return value is an array or nil
, returns that value; if not, raises TypeError
.
Otherwise returns nil
.
Related: see Methods for Creating an Array.
Replaces the elements of self
with the elements of other_array
, which must be an array-convertible object; returns self
:
a = ['a', 'b', 'c'] # => ["a", "b", "c"] a.replace(['d', 'e']) # => ["d", "e"]
Related: see Methods for Assigning.
With a block given, iterates over the elements of self
, passing each array index to the block; returns self
:
a = [:foo, 'bar', 2] a.each_index {|index| puts "#{index} #{a[index]}" }
Output:
0 foo 1 bar 2 2
Allows the array to be modified during iteration:
a = [:foo, 'bar', 2] a.each_index {|index| puts index; a.clear if index > 0 } a # => []
Output:
0 1
With no block given, returns a new Enumerator
.
Related: see Methods for Iterating.
With a block given, calls the block with each repeated combination of length size
of the elements of self
; each combination is an array; returns self
. The order of the combinations is indeterminate.
If a positive integer argument size
is given, calls the block with each size
-tuple repeated combination of the elements of self
. The number of combinations is (size+1)(size+2)/2
.
Examples:
size
is 1:
c = [] [0, 1, 2].repeated_combination(1) {|combination| c.push(combination) } c # => [[0], [1], [2]]
size
is 2:
c = [] [0, 1, 2].repeated_combination(2) {|combination| c.push(combination) } c # => [[0, 0], [0, 1], [0, 2], [1, 1], [1, 2], [2, 2]]
If size
is zero, calls the block once with an empty array.
If size
is negative, does not call the block:
[0, 1, 2].repeated_combination(-1) {|combination| fail 'Cannot happen' }
With no block given, returns a new Enumerator
.
Related: see Methods for Combining.
Returns the integer index of the element from self
found by a binary search, or nil
if the search found no suitable element.
See Binary Searching.
Related: see Methods for Fetching.