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require_relative '../spec_helper'
require_relative 'fixtures/delegation'
# Forwarding anonymous parameters
describe "delegation with def(...)" do
it "delegates rest and kwargs" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(...)
target(...)
end
RUBY
a.new.delegate(1, b: 2).should == [[1], {b: 2}, nil]
end
it "delegates a block literal" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate_block(...)
target_block(...)
end
RUBY
a.new.delegate_block(1, b: 2) { |x| x }.should == [{b: 2}, [1]]
end
it "delegates a block argument" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(...)
target(...)
end
RUBY
block = proc {}
a.new.delegate(1, b: 2, &block).should == [[1], {b: 2}, block]
end
it "parses as open endless Range when brackets are omitted" do
a = Class.new(DelegationSpecs::Target)
suppress_warning do
a.class_eval(<<-RUBY)
def delegate(...)
target ...
end
RUBY
end
a.new.delegate(1, b: 2).should == Range.new([[], {}, nil], nil, true)
end
end
describe "delegation with def(x, ...)" do
it "delegates rest and kwargs" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(x, ...)
target(...)
end
RUBY
a.new.delegate(0, 1, b: 2).should == [[1], {b: 2}, nil]
end
it "delegates a block literal" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate_block(x, ...)
target_block(...)
end
RUBY
a.new.delegate_block(0, 1, b: 2) { |x| x }.should == [{b: 2}, [1]]
end
it "delegates a block argument" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(...)
target(...)
end
RUBY
block = proc {}
a.new.delegate(1, b: 2, &block).should == [[1], {b: 2}, block]
end
end
ruby_version_is "3.2" do
describe "delegation with def(*)" do
it "delegates rest" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(*)
target(*)
end
RUBY
a.new.delegate(0, 1).should == [[0, 1], {}, nil]
end
ruby_version_is "3.3" do
context "within a block that accepts anonymous rest within a method that accepts anonymous rest" do
it "does not allow delegating rest" do
-> {
eval "def m(*); proc { |*| n(*) } end"
}.should raise_error(SyntaxError, /anonymous rest parameter is also used within block/)
end
end
end
end
end
ruby_version_is "3.2" do
describe "delegation with def(**)" do
it "delegates kwargs" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(**)
target(**)
end
RUBY
a.new.delegate(a: 1) { |x| x }.should == [[], {a: 1}, nil]
end
ruby_version_is "3.3" do
context "within a block that accepts anonymous kwargs within a method that accepts anonymous kwargs" do
it "does not allow delegating kwargs" do
-> {
eval "def m(**); proc { |**| n(**) } end"
}.should raise_error(SyntaxError, /anonymous keyword rest parameter is also used within block/)
end
end
end
end
end
describe "delegation with def(&)" do
it "delegates an anonymous block parameter" do
a = Class.new(DelegationSpecs::Target)
a.class_eval(<<-RUBY)
def delegate(&)
target(&)
end
RUBY
block = proc {}
a.new.delegate(&block).should == [[], {}, block]
end
ruby_version_is "3.3" do
context "within a block that accepts anonymous block within a method that accepts anonymous block" do
it "does not allow delegating a block" do
-> {
eval "def m(&); proc { |&| n(&) } end"
}.should raise_error(SyntaxError, /anonymous block parameter is also used within block/)
end
end
end
end
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