Misc #18125: A strange behavior when same name variable/method coexist issue.

• Status: Closed
• Assignee: -

[zw963 (Wei Zheng)]

Following is a example.

Reproduce

def deploy_to
  "deploy_to"
end

deploy_to = "#{deploy_to} new place"

p defined? deploy_to # => local_varible
p deploy_to  # => " new place"

What we expected.

def deploy_to
  "deploy_to"
end

deploy_to = "#{deploy_to} new place"

p defined? deploy_to # => local_varible
p deploy_to  # => "deploy_to new place"

This strange behavior i found it after several years ruby programming.

Perhaps this is always the expected behavior?

i report here for check anyway

[byroot (Jean Boussier)]

It is excepted because of variable hoisting.

Same reason why foo = 1 unless foo works.

[matz (Yukihiro Matsumoto)]

• Status changed from Open to Closed

Local variables are defined when they appear in assignments, thus

  deploy_to = "#{deploy_to} new place"
# ^ assignment   ^local variable

To avoid ambiguity, use parenthesis.

  deploy_to = "#{deploy_to()} new place"

Matz.