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| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-05-15 16:03:22 +0200 |
|---|---|---|
| committer | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-06-23 01:29:29 +0200 |
| commit | dff1e379fc55429ea9a4794634e02c17cebee603 (patch) | |
| tree | 4ec38d68cd0186eebcfba9d20144d43e742a0a74 /src/libsyntax/util/parser.rs | |
| parent | 3fc964201486f9fdb006bfb7d0caf9b1c3e6cb71 (diff) | |
| download | rust-dff1e379fc55429ea9a4794634e02c17cebee603.tar.gz rust-dff1e379fc55429ea9a4794634e02c17cebee603.zip | |
let_chains: Add support for parsing let expressions.
Diffstat (limited to 'src/libsyntax/util/parser.rs')
| -rw-r--r-- | src/libsyntax/util/parser.rs | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/libsyntax/util/parser.rs b/src/libsyntax/util/parser.rs index fcecee8c57f..81b5b085937 100644 --- a/src/libsyntax/util/parser.rs +++ b/src/libsyntax/util/parser.rs @@ -260,6 +260,7 @@ pub enum ExprPrecedence { Box, AddrOf, + Let, Unary, Call, @@ -277,9 +278,7 @@ pub enum ExprPrecedence { Path, Paren, If, - IfLet, While, - WhileLet, ForLoop, Loop, Match, @@ -318,6 +317,8 @@ impl ExprPrecedence { // Unary, prefix ExprPrecedence::Box | ExprPrecedence::AddrOf | + // Here `let pats = expr` has `let pats =` as a "unary" prefix of `expr`. + ExprPrecedence::Let | ExprPrecedence::Unary => PREC_PREFIX, // Unary, postfix @@ -338,9 +339,7 @@ impl ExprPrecedence { ExprPrecedence::Path | ExprPrecedence::Paren | ExprPrecedence::If | - ExprPrecedence::IfLet | ExprPrecedence::While | - ExprPrecedence::WhileLet | ExprPrecedence::ForLoop | ExprPrecedence::Loop | ExprPrecedence::Match | |