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
{ ... }
63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
SOURCE_FILE@0..54
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FN@0..31
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ATTR@0..18
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POUND@0..1 "#"
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L_BRACK@1..2 "["
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META@2..17
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PATH@2..5
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PATH_SEGMENT@2..5
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NAME_REF@2..5
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IDENT@2..5 "foo"
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TOKEN_TREE@5..17
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L_PAREN@5..6 "("
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IDENT@6..9 "foo"
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COMMA@9..10 ","
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WHITESPACE@10..11 " "
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PLUS@11..12 "+"
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COMMA@12..13 ","
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WHITESPACE@13..14 " "
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INT_NUMBER@14..16 "92"
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R_PAREN@16..17 ")"
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R_BRACK@17..18 "]"
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WHITESPACE@18..19 "\n"
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FN_KW@19..21 "fn"
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WHITESPACE@21..22 " "
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NAME@22..25
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IDENT@22..25 "foo"
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PARAM_LIST@25..27
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L_PAREN@25..26 "("
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R_PAREN@26..27 ")"
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WHITESPACE@27..28 " "
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BLOCK_EXPR@28..31
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STMT_LIST@28..31
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L_CURLY@28..29 "{"
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WHITESPACE@29..30 "\n"
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R_CURLY@30..31 "}"
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WHITESPACE@31..34 "\n\n\n"
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ATTR@34..53
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POUND@34..35 "#"
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L_BRACK@35..36 "["
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META@36..53
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PATH@36..39
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PATH_SEGMENT@36..39
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NAME_REF@36..39
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IDENT@36..39 "foo"
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TOKEN_TREE@39..53
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L_PAREN@39..40 "("
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WHITESPACE@40..41 "\n"
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FN_KW@41..43 "fn"
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WHITESPACE@43..44 " "
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IDENT@44..47 "foo"
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TOKEN_TREE@47..49
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L_PAREN@47..48 "("
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R_PAREN@48..49 ")"
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WHITESPACE@49..50 " "
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TOKEN_TREE@50..53
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L_CURLY@50..51 "{"
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WHITESPACE@51..52 "\n"
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R_CURLY@52..53 "}"
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WHITESPACE@53..54 "\n"
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error 53..53: expected R_PAREN
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error 53..53: expected `]`
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error 53..53: expected an item
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