[jruby-dev] [jira] (JRUBY-6831) Enumerator combined with reduce using symbols fails

Sat, 11 Aug 2012 14:23:29 -0700

Issue Type: Bug Bug
Affects Versions: JRuby 1.7.0.pre2
Assignee: Thomas E Enebo
Components: Ruby 1.9.3
Created: 11/Aug/12 4:22 PM
Description:

require 'prime'

  1. FAILS:
    p Prime.each(3).reduce(:+) == 5
    p Prime.each(3).reduce(0, :+) == 5
  1. Issue seems to be connected with Enumerator
    p Enumerator.new{|y| y << 1}.reduce(:+) == 1
    p Enumerator.new{|y| y << 1}.reduce(0, :+) == 1

=begin

  1. WORKS
    jruby-1.7.0.preview2 :001 > Enumerator.new{|y| y << 1}.reduce{|sum, n| sum + n}
    => 1
    jruby-1.7.0.preview2 :002 > Enumerator.new{|y| y << 1}.reduce(0){|sum, n| sum + n}
    => 1
  1. FAILS
    jruby-1.7.0.preview2 :003 > Enumerator.new{|y| y << 1}.reduce(:+)
    => nil
    jruby-1.7.0.preview2 :004 > Enumerator.new{|y| y << 1}.reduce(0, :+)
    Java::JavaLang::NullPointerException:
    from org.jruby.RubyNumeric.coerceBody(RubyNumeric.java:447)
    from org.jruby.RubyNumeric.doCoerce(RubyNumeric.java:456)
    from org.jruby.RubyNumeric.coerceBin(RubyNumeric.java:478)
    from org.jruby.RubyFixnum.addOther(RubyFixnum.java:407)
    from org.jruby.RubyFixnum.op_plus(RubyFixnum.java:347)
    from org.jruby.RubyFixnum$INVOKER$i$1$0$op_plus.call(RubyFixnum$INVOKER$i$1$0$op_plus.gen)
    from org.jruby.RubyClass.finvoke(RubyClass.java:749)
    from org.jruby.javasupport.util.RuntimeHelpers.invoke(RuntimeHelpers.java:540)
    from org.jruby.RubyBasicObject.callMethod(RubyBasicObject.java:361)
    from org.jruby.RubyEnumerable$26.call(RubyEnumerable.java:832)
    from org.jruby.runtime.CallBlock.call(CallBlock.java:66)
    from org.jruby.runtime.Block.call(Block.java:89)
    from org.jruby.RubyProc.call(RubyProc.java:271)
    from org.jruby.RubyProc.call19(RubyProc.java:259)
    from org.jruby.RubyYielder.yield(RubyYielder.java:86)
    from org.jruby.RubyYielder.op_lshift(RubyYielder.java:94)
    ... 149 levels...
    from org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:75)
    from org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
    from org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:192)
    from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:312)
    from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:169)
    from Users.aa.$dot_rvm.rubies.jruby_minus_1_dot_7_dot_0_dot_preview2.bin.irb.file_(/Users/aa/.rvm/rubies/jruby-1.7.0.preview2/bin/irb:17)
    from Users.aa.$_dot_rvm.rubies.jruby_minus_1_dot_7_dot_0_dot_preview2.bin.irb.load(/Users/aa/.rvm/rubies/jruby-1.7.0.preview2/bin/irb)
    from org.jruby.Ruby.runScript(Ruby.java:780)
    from org.jruby.Ruby.runScript(Ruby.java:773)
    from org.jruby.Ruby.runNormally(Ruby.java:650)
    from org.jruby.Ruby.runFromMain(Ruby.java:499)
    from org.jruby.Main.doRunFromMain(Main.java:376)
    from org.jruby.Main.internalRun(Main.java:265)
    from org.jruby.Main.run(Main.java:231)
    from org.jruby.Main.run(Main.java:215)
    from org.jruby.Main.main(Main.java:195)

=end
Project: JRuby
Priority: Minor Minor
Reporter: Andreas A
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