2bf81922f7
Consider these expples
{ 92 }
async { 92 }
'a: { 92 }
#[a] { 92 }
Previously the tree for them were
BLOCK_EXPR
{ ... }
EFFECT_EXPR
async
BLOCK_EXPR
{ ... }
EFFECT_EXPR
'a:
BLOCK_EXPR
{ ... }
BLOCK_EXPR
#[a]
{ ... }
As you see, it gets progressively worse :) The last two items are
especially odd. The last one even violates the balanced curleys
invariant we have (#10357) The new approach is to say that the stuff in
`{}` is stmt_list, and the block is stmt_list + optional modifiers
BLOCK_EXPR
STMT_LIST
{ ... }
BLOCK_EXPR
async
STMT_LIST
{ ... }
BLOCK_EXPR
'a:
STMT_LIST
{ ... }
BLOCK_EXPR
#[a]
STMT_LIST
{ ... }
56 lines
1.4 KiB
Plaintext
56 lines
1.4 KiB
Plaintext
SOURCE_FILE@0..48
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USE@0..13
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USE_KW@0..3 "use"
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WHITESPACE@3..4 " "
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USE_TREE@4..12
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PATH@4..12
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PATH@4..7
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PATH_SEGMENT@4..7
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NAME_REF@4..7
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IDENT@4..7 "foo"
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COLON2@7..9 "::"
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PATH_SEGMENT@9..12
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NAME_REF@9..12
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IDENT@9..12 "bar"
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SEMICOLON@12..13 ";"
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WHITESPACE@13..14 "\n"
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USE@14..17
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USE_KW@14..17 "use"
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WHITESPACE@17..18 "\n"
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USE@18..33
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USE_KW@18..21 "use"
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WHITESPACE@21..22 " "
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USE_TREE@22..32
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PATH@22..32
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PATH@22..27
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PATH_SEGMENT@22..27
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NAME_REF@22..27
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CRATE_KW@22..27 "crate"
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COLON2@27..29 "::"
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PATH_SEGMENT@29..32
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NAME_REF@29..32
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IDENT@29..32 "baz"
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SEMICOLON@32..33 ";"
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WHITESPACE@33..34 "\n"
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USE@34..37
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USE_KW@34..37 "use"
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WHITESPACE@37..38 "\n"
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FN@38..47
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FN_KW@38..40 "fn"
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WHITESPACE@40..41 " "
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NAME@41..42
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IDENT@41..42 "f"
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PARAM_LIST@42..44
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L_PAREN@42..43 "("
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R_PAREN@43..44 ")"
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WHITESPACE@44..45 " "
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BLOCK_EXPR@45..47
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STMT_LIST@45..47
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L_CURLY@45..46 "{"
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R_CURLY@46..47 "}"
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WHITESPACE@47..48 "\n"
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error 17..17: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
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error 17..17: expected SEMICOLON
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error 37..37: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
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error 37..37: expected SEMICOLON
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