Fix parsing of _ = x
in closure body
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parent
21e61bee8b
commit
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@ -288,7 +288,7 @@ fn expr_bp(
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}
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}
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const LHS_FIRST: TokenSet =
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const LHS_FIRST: TokenSet =
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atom::ATOM_EXPR_FIRST.union(TokenSet::new(&[T![&], T![*], T![!], T![.], T![-]]));
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atom::ATOM_EXPR_FIRST.union(TokenSet::new(&[T![&], T![*], T![!], T![.], T![-], T![_]]));
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fn lhs(p: &mut Parser<'_>, r: Restrictions) -> Option<(CompletedMarker, BlockLike)> {
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fn lhs(p: &mut Parser<'_>, r: Restrictions) -> Option<(CompletedMarker, BlockLike)> {
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let m;
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let m;
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@ -278,6 +278,8 @@ fn closure_expr(p: &mut Parser<'_>) -> CompletedMarker {
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// fn main() { || -> i32 { 92 }(); }
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// fn main() { || -> i32 { 92 }(); }
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block_expr(p);
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block_expr(p);
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} else if p.at_ts(EXPR_FIRST) {
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} else if p.at_ts(EXPR_FIRST) {
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// test closure_body_underscore_assignment
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// fn main() { || _ = 0; }
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expr(p);
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expr(p);
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} else {
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} else {
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p.error("expected expression");
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p.error("expected expression");
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@ -0,0 +1,32 @@
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SOURCE_FILE
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FN
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FN_KW "fn"
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WHITESPACE " "
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NAME
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IDENT "main"
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PARAM_LIST
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L_PAREN "("
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R_PAREN ")"
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WHITESPACE " "
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BLOCK_EXPR
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STMT_LIST
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L_CURLY "{"
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WHITESPACE " "
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EXPR_STMT
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CLOSURE_EXPR
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PARAM_LIST
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PIPE "|"
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PIPE "|"
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WHITESPACE " "
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BIN_EXPR
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UNDERSCORE_EXPR
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UNDERSCORE "_"
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WHITESPACE " "
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EQ "="
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WHITESPACE " "
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LITERAL
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INT_NUMBER "0"
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SEMICOLON ";"
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WHITESPACE " "
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R_CURLY "}"
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WHITESPACE "\n"
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@ -0,0 +1 @@
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fn main() { || _ = 0; }
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