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Return parser error on parsing invalid encoding regexp #305

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Return parser error on parsing invalid encoding regexp #305

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4 changes: 1 addition & 3 deletions lib/rubocop/ast/processed_source.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -208,15 +208,13 @@ def parse(source, ruby_version, parser_engine)

begin
@buffer.source = source
@ast, @comments, @tokens = tokenize(create_parser(ruby_version, parser_engine))
rescue EncodingError, Parser::UnknownEncodingInMagicComment => e
@parser_error = e
@ast = nil
@comments = []
@tokens = []
return
end

@ast, @comments, @tokens = tokenize(create_parser(ruby_version, parser_engine))
end

def tokenize(parser)
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8 changes: 8 additions & 0 deletions spec/rubocop/ast/processed_source_spec.rb
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Expand Up @@ -38,6 +38,14 @@ def some_method
end
end

context 'when parsing invalid encoding regexp', broken_on: :prism do
let(:source) { '/あ/n' }

it 'returns a parser error' do
expect(processed_source.parser_error).to be_a(EncodingError)
end
end

shared_examples 'invalid parser_engine' do
it 'raises ArgumentError' do
expect { processed_source }.to raise_error(ArgumentError) do |e|
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