Raw identifier syntax build regression - OxCaml version#238
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Raw identifier syntax build regression - OxCaml version#238
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Lexer.is_keyword was exposed as part of the support for raw identifier syntax in OCaml 5.2. Using this function directly added a dependency for Path and Pprintast on Lexer and transitively on Parser which did not exist before. Unfortunately, this significantly reduces the parallelism when compiling ocamlcommon.cmxa. The fix here is to move the keyword_table from Lexer to a new module Keywords and instead expose Keywords.is_keyword and additionally Keywords.token_of_string for the Lexer itself. There is a small wart that Parser.token is required, but can't be directly referenced because this would create a dependency for the new keywords.cmx on parser.cmx and undermine the fix. The solution is to generate an additional mli-only module Keywords_token containing a copy (with type equality) of Parser.token and use that.
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$ hyperfine -p 'git clean -dfX; git checkout {sha}; ./configure --disable-dependency-generation' -L sha 717d9ba2c8,76a2ac4b37,da1cc7acd8,5663fc6a56 'make -j'`PR#12323being mergedPR#12323