macros: fix partially consumed tokens in macro matchers#37208
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bors merged 2 commits intorust-lang:masterfrom Oct 19, 2016
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macros: fix partially consumed tokens in macro matchers#37208bors merged 2 commits intorust-lang:masterfrom
bors merged 2 commits intorust-lang:masterfrom
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nrc
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src/libsyntax/ext/tt/macro_parser.rs
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nit: this panic should be unreachable (it might be better though to encapsulate this on the token tree somewhere, rather than doing it here.
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Changed to unreachable!().
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r+ with the nit addressed |
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@bors r=nrc |
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…kens_in_macros, r=nrc macros: fix partially consumed tokens in macro matchers Fixes rust-lang#37175. This PR also avoids re-transcribing the tokens consumed by a matcher (and cloning the `TtReader` once per matcher), which improves expansion performance of the test case from rust-lang#34630 by ~8%. r? @nrc
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…kens_in_macros, r=nrc macros: fix partially consumed tokens in macro matchers Fixes rust-lang#37175. This PR also avoids re-transcribing the tokens consumed by a matcher (and cloning the `TtReader` once per matcher), which improves expansion performance of the test case from rust-lang#34630 by ~8%. r? @nrc
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Fixes #37175.
This PR also avoids re-transcribing the tokens consumed by a matcher (and cloning the
TtReaderonce per matcher), which improves expansion performance of the test case from #34630 by ~8%.r? @nrc