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[rubygems/rubygems] Bump Molinillo and tsort 

And configure tsort to be vendored as a dependency of Molinillo.

https://github.com/rubygems/rubygems/commit/8ec749f891
This commit is contained in:
David Rodríguez 2022-12-10 22:05:03 +01:00 коммит произвёл git
Родитель 9477ec732b
Коммит d82328ffc8
4 изменённых файлов: 345 добавлений и 341 удалений
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2
lib/rubygems/resolver/molinillo/lib/molinillo/dependency_graph.rb
Просмотреть файл

@ -32,7 +32,7 @@ module Gem::Resolver::Molinillo
# all belong to the same graph.
# @return [Array<Vertex>] The sorted vertices.
def self.tsort(vertices)
TSort.tsort(
Gem::TSort.tsort(
lambda { |b| vertices.each(&b) },
lambda { |v, &b| (v.successors & vertices).each(&b) }
)

60
lib/rubygems/resolver/molinillo/lib/molinillo/errors.rb
Просмотреть файл

@ -107,36 +107,42 @@ module Gem::Resolver::Molinillo
end
end
conflicts.sort.reduce(''.dup) do |o, (name, conflict)|
o << "\n" << incompatible_version_message_for_conflict.call(name, conflict) << "\n"
if conflict.locked_requirement
o << %( In snapshot (#{name_for_locking_dependency_source}):\n)
o << %( #{printable_requirement.call(conflict.locked_requirement)}\n)
o << %(\n)
end
o << %( In #{name_for_explicit_dependency_source}:\n)
trees = reduce_trees.call(conflict.requirement_trees)
o << trees.map do |tree|
t = ''.dup
depth = 2
tree.each do |req|
t << ' ' * depth << printable_requirement.call(req)
unless tree.last == req
if spec = conflict.activated_by_name[name_for(req)]
t << %( was resolved to #{version_for_spec.call(spec)}, which)
end
t << %( depends on)
end
t << %(\n)
depth += 1
full_message_for_conflict = opts.delete(:full_message_for_conflict) do
proc do |name, conflict|
o = "\n".dup << incompatible_version_message_for_conflict.call(name, conflict) << "\n"
if conflict.locked_requirement
o << %( In snapshot (#{name_for_locking_dependency_source}):\n)
o << %( #{printable_requirement.call(conflict.locked_requirement)}\n)
o << %(\n)
end
t
end.join("\n")
o << %( In #{name_for_explicit_dependency_source}:\n)
trees = reduce_trees.call(conflict.requirement_trees)
additional_message_for_conflict.call(o, name, conflict)
o << trees.map do |tree|
t = ''.dup
depth = 2
tree.each do |req|
t << ' ' * depth << printable_requirement.call(req)
unless tree.last == req
if spec = conflict.activated_by_name[name_for(req)]
t << %( was resolved to #{version_for_spec.call(spec)}, which)
end
t << %( depends on)
end
t << %(\n)
depth += 1
end
t
end.join("\n")
o
additional_message_for_conflict.call(o, name, conflict)
o
end
end
conflicts.sort.reduce(''.dup) do |o, (name, conflict)|
o << full_message_for_conflict.call(name, conflict)
end.strip
end
end

2
lib/rubygems/resolver/molinillo/lib/molinillo/gem_metadata.rb
Просмотреть файл

@ -2,5 +2,5 @@
module Gem::Resolver::Molinillo
# The version of Gem::Resolver::Molinillo.
VERSION = '0.7.0'.freeze
VERSION = '0.8.0'.freeze
end

622
lib/rubygems/tsort/lib/tsort.rb
Просмотреть файл

@ -121,334 +121,332 @@
# <em>SIAM Journal on Computing</em>, Vol. 1, No. 2, pp. 146-160, June 1972.
#
module Gem
module TSort
class Cyclic < StandardError
end
module Gem::TSort
class Cyclic < StandardError
end
# Returns a topologically sorted array of nodes.
# The array is sorted from children to parents, i.e.
# the first element has no child and the last node has no parent.
#
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# p graph.tsort #=> [4, 2, 3, 1]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# p graph.tsort # raises Gem::TSort::Cyclic
#
def tsort
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.tsort(each_node, each_child)
end
# Returns a topologically sorted array of nodes.
# The array is sorted from children to parents, i.e.
# the first element has no child and the last node has no parent.
#
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# p graph.tsort #=> [4, 2, 3, 1]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# p graph.tsort # raises Gem::TSort::Cyclic
#
def tsort
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.tsort(each_node, each_child)
end
# Returns a topologically sorted array of nodes.
# The array is sorted from children to parents, i.e.
# the first element has no child and the last node has no parent.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.tsort(each_node, each_child) #=> [4, 2, 3, 1]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.tsort(each_node, each_child) # raises Gem::TSort::Cyclic
#
def TSort.tsort(each_node, each_child)
Gem::TSort.tsort_each(each_node, each_child).to_a
end
# Returns a topologically sorted array of nodes.
# The array is sorted from children to parents, i.e.
# the first element has no child and the last node has no parent.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.tsort(each_node, each_child) #=> [4, 2, 3, 1]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.tsort(each_node, each_child) # raises Gem::TSort::Cyclic
#
def self.tsort(each_node, each_child)
tsort_each(each_node, each_child).to_a
end
# The iterator version of the #tsort method.
# <tt><em>obj</em>.tsort_each</tt> is similar to <tt><em>obj</em>.tsort.each</tt>, but
# modification of _obj_ during the iteration may lead to unexpected results.
#
# #tsort_each returns +nil+.
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.tsort_each {|n| p n }
# #=> 4
# # 2
# # 3
# # 1
#
def tsort_each(&block) # :yields: node
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.tsort_each(each_node, each_child, &block)
end
# The iterator version of the #tsort method.
# <tt><em>obj</em>.tsort_each</tt> is similar to <tt><em>obj</em>.tsort.each</tt>, but
# modification of _obj_ during the iteration may lead to unexpected results.
#
# #tsort_each returns +nil+.
# If there is a cycle, Gem::TSort::Cyclic is raised.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.tsort_each {|n| p n }
# #=> 4
# # 2
# # 3
# # 1
#
def tsort_each(&block) # :yields: node
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.tsort_each(each_node, each_child, &block)
end
# The iterator version of the Gem::TSort.tsort method.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.tsort_each(each_node, each_child) {|n| p n }
# #=> 4
# # 2
# # 3
# # 1
#
def TSort.tsort_each(each_node, each_child) # :yields: node
return to_enum(__method__, each_node, each_child) unless block_given?
# The iterator version of the Gem::TSort.tsort method.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.tsort_each(each_node, each_child) {|n| p n }
# #=> 4
# # 2
# # 3
# # 1
#
def self.tsort_each(each_node, each_child) # :yields: node
return to_enum(__method__, each_node, each_child) unless block_given?
Gem::TSort.each_strongly_connected_component(each_node, each_child) {|component|
if component.size == 1
yield component.first
else
raise Cyclic.new("topological sort failed: #{component.inspect}")
end
}
end
each_strongly_connected_component(each_node, each_child) {|component|
if component.size == 1
yield component.first
else
raise Cyclic.new("topological sort failed: #{component.inspect}")
end
}
end
# Returns strongly connected components as an array of arrays of nodes.
# The array is sorted from children to parents.
# Each elements of the array represents a strongly connected component.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# p graph.strongly_connected_components #=> [[4], [2], [3], [1]]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# p graph.strongly_connected_components #=> [[4], [2, 3], [1]]
#
def strongly_connected_components
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.strongly_connected_components(each_node, each_child)
end
# Returns strongly connected components as an array of arrays of nodes.
# The array is sorted from children to parents.
# Each elements of the array represents a strongly connected component.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# p graph.strongly_connected_components #=> [[4], [2], [3], [1]]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# p graph.strongly_connected_components #=> [[4], [2, 3], [1]]
#
def strongly_connected_components
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.strongly_connected_components(each_node, each_child)
end
# Returns strongly connected components as an array of arrays of nodes.
# The array is sorted from children to parents.
# Each elements of the array represents a strongly connected component.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.strongly_connected_components(each_node, each_child)
# #=> [[4], [2], [3], [1]]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.strongly_connected_components(each_node, each_child)
# #=> [[4], [2, 3], [1]]
#
def TSort.strongly_connected_components(each_node, each_child)
Gem::TSort.each_strongly_connected_component(each_node, each_child).to_a
end
# Returns strongly connected components as an array of arrays of nodes.
# The array is sorted from children to parents.
# Each elements of the array represents a strongly connected component.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.strongly_connected_components(each_node, each_child)
# #=> [[4], [2], [3], [1]]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# p Gem::TSort.strongly_connected_components(each_node, each_child)
# #=> [[4], [2, 3], [1]]
#
def self.strongly_connected_components(each_node, each_child)
each_strongly_connected_component(each_node, each_child).to_a
end
# The iterator version of the #strongly_connected_components method.
# <tt><em>obj</em>.each_strongly_connected_component</tt> is similar to
# <tt><em>obj</em>.strongly_connected_components.each</tt>, but
# modification of _obj_ during the iteration may lead to unexpected results.
#
# #each_strongly_connected_component returns +nil+.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.each_strongly_connected_component {|scc| p scc }
# #=> [4]
# # [2]
# # [3]
# # [1]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# graph.each_strongly_connected_component {|scc| p scc }
# #=> [4]
# # [2, 3]
# # [1]
#
def each_strongly_connected_component(&block) # :yields: nodes
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.each_strongly_connected_component(each_node, each_child, &block)
end
# The iterator version of the #strongly_connected_components method.
# <tt><em>obj</em>.each_strongly_connected_component</tt> is similar to
# <tt><em>obj</em>.strongly_connected_components.each</tt>, but
# modification of _obj_ during the iteration may lead to unexpected results.
#
# #each_strongly_connected_component returns +nil+.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.each_strongly_connected_component {|scc| p scc }
# #=> [4]
# # [2]
# # [3]
# # [1]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# graph.each_strongly_connected_component {|scc| p scc }
# #=> [4]
# # [2, 3]
# # [1]
#
def each_strongly_connected_component(&block) # :yields: nodes
each_node = method(:tsort_each_node)
each_child = method(:tsort_each_child)
Gem::TSort.each_strongly_connected_component(each_node, each_child, &block)
end
# The iterator version of the Gem::TSort.strongly_connected_components method.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.each_strongly_connected_component(each_node, each_child) {|scc| p scc }
# #=> [4]
# # [2]
# # [3]
# # [1]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.each_strongly_connected_component(each_node, each_child) {|scc| p scc }
# #=> [4]
# # [2, 3]
# # [1]
#
def TSort.each_strongly_connected_component(each_node, each_child) # :yields: nodes
return to_enum(__method__, each_node, each_child) unless block_given?
# The iterator version of the Gem::TSort.strongly_connected_components method.
#
# The graph is represented by _each_node_ and _each_child_.
# _each_node_ should have +call+ method which yields for each node in the graph.
# _each_child_ should have +call+ method which takes a node argument and yields for each child node.
#
# g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.each_strongly_connected_component(each_node, each_child) {|scc| p scc }
# #=> [4]
# # [2]
# # [3]
# # [1]
#
# g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_node = lambda {|&b| g.each_key(&b) }
# each_child = lambda {|n, &b| g[n].each(&b) }
# Gem::TSort.each_strongly_connected_component(each_node, each_child) {|scc| p scc }
# #=> [4]
# # [2, 3]
# # [1]
#
def self.each_strongly_connected_component(each_node, each_child) # :yields: nodes
return to_enum(__method__, each_node, each_child) unless block_given?
id_map = {}
stack = []
each_node.call {|node|
unless id_map.include? node
Gem::TSort.each_strongly_connected_component_from(node, each_child, id_map, stack) {|c|
id_map = {}
stack = []
each_node.call {|node|
unless id_map.include? node
each_strongly_connected_component_from(node, each_child, id_map, stack) {|c|
yield c
}
end
}
nil
end
# Iterates over strongly connected component in the subgraph reachable from
# _node_.
#
# Return value is unspecified.
#
# #each_strongly_connected_component_from doesn't call #tsort_each_node.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.each_strongly_connected_component_from(2) {|scc| p scc }
# #=> [4]
# # [2]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# graph.each_strongly_connected_component_from(2) {|scc| p scc }
# #=> [4]
# # [2, 3]
#
def each_strongly_connected_component_from(node, id_map={}, stack=[], &block) # :yields: nodes
Gem::TSort.each_strongly_connected_component_from(node, method(:tsort_each_child), id_map, stack, &block)
end
# Iterates over strongly connected components in a graph.
# The graph is represented by _node_ and _each_child_.
#
# _node_ is the first node.
# _each_child_ should have +call+ method which takes a node argument
# and yields for each child node.
#
# Return value is unspecified.
#
# #Gem::TSort.each_strongly_connected_component_from is a class method and
# it doesn't need a class to represent a graph which includes Gem::TSort.
#
# graph = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_child = lambda {|n, &b| graph[n].each(&b) }
# Gem::TSort.each_strongly_connected_component_from(1, each_child) {|scc|
# p scc
# }
# #=> [4]
# # [2, 3]
# # [1]
#
def self.each_strongly_connected_component_from(node, each_child, id_map={}, stack=[]) # :yields: nodes
return to_enum(__method__, node, each_child, id_map, stack) unless block_given?
minimum_id = node_id = id_map[node] = id_map.size
stack_length = stack.length
stack << node
each_child.call(node) {|child|
if id_map.include? child
child_id = id_map[child]
minimum_id = child_id if child_id && child_id < minimum_id
else
sub_minimum_id =
each_strongly_connected_component_from(child, each_child, id_map, stack) {|c|
yield c
}
end
}
nil
end
# Iterates over strongly connected component in the subgraph reachable from
# _node_.
#
# Return value is unspecified.
#
# #each_strongly_connected_component_from doesn't call #tsort_each_node.
#
# class G
# include Gem::TSort
# def initialize(g)
# @g = g
# end
# def tsort_each_child(n, &b) @g[n].each(&b) end
# def tsort_each_node(&b) @g.each_key(&b) end
# end
#
# graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
# graph.each_strongly_connected_component_from(2) {|scc| p scc }
# #=> [4]
# # [2]
#
# graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
# graph.each_strongly_connected_component_from(2) {|scc| p scc }
# #=> [4]
# # [2, 3]
#
def each_strongly_connected_component_from(node, id_map={}, stack=[], &block) # :yields: nodes
Gem::TSort.each_strongly_connected_component_from(node, method(:tsort_each_child), id_map, stack, &block)
end
# Iterates over strongly connected components in a graph.
# The graph is represented by _node_ and _each_child_.
#
# _node_ is the first node.
# _each_child_ should have +call+ method which takes a node argument
# and yields for each child node.
#
# Return value is unspecified.
#
# #Gem::TSort.each_strongly_connected_component_from is a class method and
# it doesn't need a class to represent a graph which includes Gem::TSort.
#
# graph = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]}
# each_child = lambda {|n, &b| graph[n].each(&b) }
# Gem::TSort.each_strongly_connected_component_from(1, each_child) {|scc|
# p scc
# }
# #=> [4]
# # [2, 3]
# # [1]
#
def TSort.each_strongly_connected_component_from(node, each_child, id_map={}, stack=[]) # :yields: nodes
return to_enum(__method__, node, each_child, id_map, stack) unless block_given?
minimum_id = node_id = id_map[node] = id_map.size
stack_length = stack.length
stack << node
each_child.call(node) {|child|
if id_map.include? child
child_id = id_map[child]
minimum_id = child_id if child_id && child_id < minimum_id
else
sub_minimum_id =
Gem::TSort.each_strongly_connected_component_from(child, each_child, id_map, stack) {|c|
yield c
}
minimum_id = sub_minimum_id if sub_minimum_id < minimum_id
end
}
if node_id == minimum_id
component = stack.slice!(stack_length .. -1)
component.each {|n| id_map[n] = nil}
yield component
minimum_id = sub_minimum_id if sub_minimum_id < minimum_id
end
}
minimum_id
if node_id == minimum_id
component = stack.slice!(stack_length .. -1)
component.each {|n| id_map[n] = nil}
yield component
end
# Should be implemented by a extended class.
#
# #tsort_each_node is used to iterate for all nodes over a graph.
#
def tsort_each_node # :yields: node
raise NotImplementedError.new
end
minimum_id
end
# Should be implemented by a extended class.
#
# #tsort_each_child is used to iterate for child nodes of _node_.
#
def tsort_each_child(node) # :yields: child
raise NotImplementedError.new
end
# Should be implemented by a extended class.
#
# #tsort_each_node is used to iterate for all nodes over a graph.
#
def tsort_each_node # :yields: node
raise NotImplementedError.new
end
# Should be implemented by a extended class.
#
# #tsort_each_child is used to iterate for child nodes of _node_.
#
def tsort_each_child(node) # :yields: child
raise NotImplementedError.new
end
end