Code

Fully implement or-pattern parsing#63693

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bors merged 34 commits intorust-lang:masterrust-lang/rust:masterfrom Centril:polish-parse-or-patsCentril/rust:polish-parse-or-patsCopy head branch name to clipboardAug 27, 2019

+1,081-226

Commits

Commits on Aug 24, 2019

• parser: extract ban_unexpected_or_or.

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• parser: type alias type Expected = Option<&'static str>;.

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• parser: refactor parse_pat_with_or + use it in [p0, p1, ..] pats.

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• parser: improve or-patterns recovery.

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• parser: move multiple-pattern-typo -> or-patterns directory.

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• parser: multiple-pattern-typo: cover more or-pattern places.

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• parser: simplify parse_pat_with_or.

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• parser: extract maybe_recover_unexpected_comma.

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• parser: integrate maybe_recover_unexpected_comma in parse_pat_with_or.

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• parser: extract eat_or_separator.

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• parser: improve parse_pat_with_or docs.

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• parser: use eat_or_separator for leading vert.

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• parser: move maybe_recover_unexpected_comma to a more appropriate place.

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• parser: document ban_unexpected_or_or.

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• parser: parse_pats -> parse_top_pat{_unpack}.

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• parser: document parse_pat.

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• parser: let stmts & for exprs: allow or-patterns.

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• parser: drive-by: simplify parse_arg_general.

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• move ui/or-pattern-mismatch -> ui/or-patterns/.

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• or-patterns: add syntactic tests.

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• move feature-gate-or_patterns.* -> ui/or-patterns/

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• or-patterns: harden feature gating tests.

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• parser: better recovery for || in inner pats.

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• parser: bool -> GateOr.

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• parser: bool -> TopLevel.

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• parse_top_pat: silence leading vert gating sometimes.

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• parser: extract recover_inner_leading_vert.

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• parser: reword || recovery.

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• parser: simplify parse_pat_with_or_{inner}

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• parser: 'while parsing this or-pattern...'

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Commits on Aug 25, 2019

• parser: gracefully handle fn foo(A | B: type).

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• or_patterns: add run-rustfix tests.

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• parser: TopLevel -> RecoverComma.

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Commits on Aug 26, 2019

• parser: fix span for leading vert.

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