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Rewrite attributes into methods #1936

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Rewrite attributes into methods #1936

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10 changes: 10 additions & 0 deletions lib/tapioca/commands/abstract_gem.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -291,6 +291,16 @@ def merge_with_exported_rbi(gem, file)

tree = gem.exported_rbi_tree

begin
tree.replace_attributes_with_methods!
rescue RBI::UnexpectedMultipleSigsError => e
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I don't know how I feel about this.

As implemented, this will leave the tree partially rewritten (up until the time when the multi-sigged attribute is found), and log this message.

Ideally, I'd just log the message from inside RBI and discard all but the first sig, but there's no existing logger API in RBI for this. Without that, I'd have to directly $stderr.puts ... from within the RBI gem, but that feels very wrong.

Suggestions?

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We should discard the tree and return the original file as we do below in case of conflicts.

$stderr.puts(<<~MSG)
WARNING: Attributes cannot have more than one sig.

#{e.node.string.chomp}
MSG
Comment on lines +297 to +301
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Suggested change
$stderr.puts(<<~MSG)
WARNING: Attributes cannot have more than one sig.
#{e.node.string.chomp}
MSG
say_error("\n\n RBIs exported by `#{gem.name}` contain errors and can't be used:", :yellow)
say_error(" #{e.node.string.chomp}", :yellow)
return file

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^ Since we have the node we should also give the location

end

unless tree.conflicts.empty?
say_error("\n\n RBIs exported by `#{gem.name}` contain conflicts and can't be used:", :yellow)

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112 changes: 112 additions & 0 deletions spec/tapioca/cli/gem_spec.rb
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Expand Up @@ -499,6 +499,118 @@ def foo; end
assert_success_status(result)
end


it "must generate a gem RBI and rewrites attributes from exported gem RBIs into methods" do
foo = mock_gem("foo", "0.0.1") do

write!("lib/foo.rb", <<~RBI)
class Foo
attr_reader :i
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Can we add the full set of attr_writer, attr_reader and attr_accessor to this test please?

end
RBI

write!("rbi/foo.rbi", <<~RBI)
class Foo
sig { returns(Integer) }
attr_reader :i
end
RBI
end

@project.require_mock_gem(foo)
@project.bundle_install!

result = @project.tapioca("gem foo")

assert_stdout_includes(result, "create sorbet/rbi/gems/[email protected]")
puts @project.read("sorbet/rbi/gems/[email protected]")
assert_project_file_includes("sorbet/rbi/gems/[email protected]", <<~RBI.chomp)
class Foo
sig { returns(Integer) }
def i; end
end
RBI
assert_empty_stderr(result)
assert_success_status(result)
end

it "must generate a gem RBI that merges methods and attributes" do
foo = mock_gem("foo", "0.0.1") do

write!("lib/foo.rb", <<~RBI)
class Foo
extend T::Sig

sig { returns(Integer) }
attr_reader :i

def s; end
end
RBI

write!("rbi/foo.rbi", <<~RBI)
class Foo
attr_reader :i

sig { returns(String) }
attr_reader :s
end
RBI
end

@project.require_mock_gem(foo)
@project.bundle_install!

result = @project.tapioca("gem foo")

assert_stdout_includes(result, "create sorbet/rbi/gems/[email protected]")
puts result.err
puts @project.read("sorbet/rbi/gems/[email protected]")
assert_project_file_includes("sorbet/rbi/gems/[email protected]", <<~RBI.chomp)
class Foo
sig { returns(Integer) }
def i; end

sig { returns(String) }
def s; end
end
RBI
assert_empty_stderr(result)
assert_success_status(result)
end

it "logs an error message if an attribute has multiple sigs" do
foo = mock_gem("foo", "0.0.1") do
write!("lib/foo.rb", <<~RBI)
class Foo
end
RBI

write!("rbi/foo.rbi", <<~RBI)
class Foo
sig { returns(Integer) }
sig { returns(String) }
attr_reader :i
end
RBI
end

@project.require_mock_gem(foo)
@project.bundle_install!

result = @project.tapioca("gem foo")

assert_stdout_includes(result, "create sorbet/rbi/gems/[email protected]")

assert_stderr_includes(result, <<~MSG)
WARNING: Attributes cannot have more than one sig.

sig { returns(Integer) }
sig { returns(String) }
attr_reader :i
MSG
end

it "must remove outdated RBIs" do
@project.require_mock_gem(mock_gem("foo", "0.0.1"))
@project.require_mock_gem(mock_gem("bar", "0.3.0"))
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