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U:RDoc::AnyMethod[iI" tsort:EFI"TSort::tsort;TT: publico:RDoc::Markup::Document: @parts[ o: RDoc::Markup::Paragraph; [I"4Returns a topologically sorted array of nodes. ;TI"8The array is sorted from children to parents, i.e. ;TI"Dthe first element has no child and the last node has no parent.;To: RDoc::Markup::BlankLine o; ; [I"?The graph is represented by _each_node_ and _each_child_. ;TI"T_each_node_ should have +call+ method which yields for each node in the graph. ;TI"g_each_child_ should have +call+ method which takes a node argument and yields for each child node.;T@o; ; [I"2If there is a cycle, TSort::Cyclic is raised.;T@o:RDoc::Markup::Verbatim; [I"/g = {1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]} ;TI"/each_node = lambda {|&b| g.each_key(&b) } ;TI"2each_child = lambda {|n, &b| g[n].each(&b) } ;TI";p TSort.tsort(each_node, each_child) #=> [4, 2, 3, 1] ;TI" ;TI",g = {1=>[2], 2=>[3, 4], 3=>[2], 4=>[]} ;TI"/each_node = lambda {|&b| g.each_key(&b) } ;TI"2each_child = lambda {|n, &b| g[n].each(&b) } ;TI"@p TSort.tsort(each_node, each_child) # raises TSort::Cyclic;T: @format0: @fileI"lib/tsort.rb;T:0@omit_headings_from_table_of_contents_below000[ I" (each_node, each_child);T@$FI" TSort;FcRDoc::NormalModule00
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