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proc.c: proc without block

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* proc.c (proc_new): promoted lambda/proc/Proc.new with no block
  in a method called with a block to a warning/error.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2019-01-10 08:19:14 +00:00
parent ec336fb40e
commit 9f1fb0a17f
10 changed files with 144 additions and 66 deletions
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25
spec/ruby/language/lambda_spec.rb
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@ -310,14 +310,25 @@ describe "A lambda expression 'lambda { ... }'" do
def meth; lambda; end
end
it "can be created" do
implicit_lambda = nil
-> {
implicit_lambda = meth { 1 }
}.should complain(/tried to create Proc object without a block/)
ruby_version_is ""..."2.7" do
it "can be created" do
implicit_lambda = nil
-> {
implicit_lambda = meth { 1 }
}.should complain(/tried to create Proc object without a block/)
implicit_lambda.lambda?.should be_true
implicit_lambda.call.should == 1
implicit_lambda.lambda?.should be_true
implicit_lambda.call.should == 1
end
end
ruby_version_is "2.7" do
it "raises ArgumentError" do
implicit_lambda = nil
-> {
meth { 1 }
}.should raise_error(ArgumentError, /tried to create Proc object without a block/)
end
end
end