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Bug #16633

closed

TracePoint :line event issue

Added by ViugiNick (Nickolay Viuginov) over 4 years ago. Updated over 4 years ago.

Status:
Rejected
Assignee:
-
Target version:
-
ruby -v:
2.3.1-2.7.0
[ruby-core:97163]

Description

TracePoint.new(:line) do |tp|
  p [tp.lineno, tp.event]
end.enable

def bar
  yield 1
  yield 2
end
def foo
  1 + 1
  bar do |a|
    return a
  end
  1 + 1
end
def foobar
  1 + 1
  puts foo
  1 + 1
end
foobar

[5, :line]
[9, :line]
[16, :line]
[21, :line]
[17, :line]
[18, :line]
[10, :line]
[11, :line]
[6, :line]
[12, :line]
1
[19, :line]

As you can see there is no line event for line #7

Actions #1

Updated by ViugiNick (Nickolay Viuginov) over 4 years ago

  • ruby -v set to 2.3.1-2.7.0

Updated by mame (Yusuke Endoh) over 4 years ago

  • Status changed from Open to Rejected

In fact, Line 7 is not reachable. The return statement in the block jumps to the callsite of foo.

def bar
  yield 1
  puts "unreachable"
end

def foo
  bar do |a|
    return a # skips the rest of bar, and immediately returns to the callsite of foo
  end
  puts "unreachable too"
end

foo # the callsite of foo
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