Decouple RubyLex from prompt and line_no #701
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st0012
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Oct 11, 2023
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Currently we don't declare private methods under IRB::Irb, but I think these 2 prompt methods can be the first 2. WDYT?
While we expect Irb to be a private component, it's still relatively easy to retrieve (e.g. with irb_context.irb) and could be used by us in other gems too (e.g. ruby/debug#1024). So making some methods private could ideally make people think twice before calling them.
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(ruby/irb#701) * Remove instance variable prompt and line_no from RubyLex * Fix prompt test * Rename prompt generating method and make it private ruby/irb@1ceb97fe2e
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Removes the last RubyLex's instance variable
@promptand@line_no.Reason:
@line_nois completely controlled by IRB::Irb with@scanner.increase_line_no. It should be IRB::Irb's instance variable.@scanner.set_prompt do endand@scanner.prompt(args)seems roundabout.I wanted to remove
save_prompt_to_context_iobecause the flow is complex and hard to understand.After deleting
@promptand@line_nofrom RubyLex, RubyLex will have no state at all. RubyLex does not have to be a class anymore.