110 lines
2.2 KiB
Ruby
110 lines
2.2 KiB
Ruby
#
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# irb/inspector.rb - inspect methods
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# $Release Version: 0.9.6$
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# $Revision: 1.19 $
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# $Date: 2002/06/11 07:51:31 $
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# by Keiju ISHITSUKA(keiju@ruby-lang.org)
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#
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# --
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#
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#
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#
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module IRB
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def IRB::Inspector(inspect, init = nil)
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Inspector.new(inspect, init)
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end
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class Inspector
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def initialize(inspect_proc, init_proc = nil)
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@init = init_proc
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@inspect = inspect_proc
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end
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def init
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@init.call if @init
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end
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def inspect_value(v)
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@inspect.call(v)
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end
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end
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INSPECTORS = {}
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def INSPECTORS.keys_with_inspector(inspector)
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select{|k,v| v == inspector}.collect{|k, v| k}
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end
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# ex)
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# INSPECTORS.def_inspector(key, init_p=nil){|v| v.inspect}
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# INSPECTORS.def_inspector([key1,..], init_p=nil){|v| v.inspect}
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# INSPECTORS.def_inspector(key, inspector)
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# INSPECTORS.def_inspector([key1,...], inspector)
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def INSPECTORS.def_inspector(key, arg=nil, &block)
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# if !block_given?
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# case arg
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# when nil, Proc
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# inspector = IRB::Inspector(init_p)
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# when Inspector
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# inspector = init_p
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# else
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# IRB.Raise IllegalParameter, init_p
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# end
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# init_p = nil
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# else
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# inspector = IRB::Inspector(block, init_p)
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# end
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if block_given?
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inspector = IRB::Inspector(block, arg)
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else
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inspector = arg
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end
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case key
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when Array
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for k in key
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def_inspector(k, inspector)
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end
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when Symbol
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self[key] = inspector
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self[key.to_s] = inspector
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when String
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self[key] = inspector
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self[key.intern] = inspector
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else
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self[key] = inspector
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end
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end
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INSPECTORS.def_inspector([false, :to_s, :raw]){|v| v.to_s}
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INSPECTORS.def_inspector([true, :p, :inspect]){|v|
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begin
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v.inspect
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rescue NoMethodError
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puts "(Object doesn't support #inspect)"
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end
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}
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INSPECTORS.def_inspector([:pp, :pretty_inspect], proc{require "pp"}){|v| v.pretty_inspect.chomp}
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INSPECTORS.def_inspector([:yaml, :YAML], proc{require "yaml"}){|v|
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begin
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YAML.dump(v)
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rescue
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puts "(can't dump yaml. use inspect)"
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v.inspect
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end
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}
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INSPECTORS.def_inspector([:marshal, :Marshal, :MARSHAL, Marshal]){|v|
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Marshal.dump(v)
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}
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end
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