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
{ ... }
172 lines
4.7 KiB
Plaintext
172 lines
4.7 KiB
Plaintext
SOURCE_FILE@0..112
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FN@0..33
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FN_KW@0..2 "fn"
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WHITESPACE@2..3 " "
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NAME@3..4
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IDENT@3..4 "a"
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PARAM_LIST@4..6
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L_PAREN@4..5 "("
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R_PAREN@5..6 ")"
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WHITESPACE@6..7 " "
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BLOCK_EXPR@7..33
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STMT_LIST@7..33
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L_CURLY@7..8 "{"
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WHITESPACE@8..9 " "
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EXPR_STMT@9..17
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ARRAY_EXPR@9..17
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L_BRACK@9..10 "["
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LITERAL@10..11
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INT_NUMBER@10..11 "1"
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COMMA@11..12 ","
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WHITESPACE@12..13 " "
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LITERAL@13..14
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INT_NUMBER@13..14 "2"
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COMMA@14..15 ","
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WHITESPACE@15..16 " "
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ERROR@16..17
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AT@16..17 "@"
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ERROR@17..18
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COMMA@17..18 ","
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WHITESPACE@18..19 " "
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STRUCT@19..26
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STRUCT_KW@19..25 "struct"
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ERROR@25..26
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COMMA@25..26 ","
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WHITESPACE@26..27 " "
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LET_STMT@27..31
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LET_KW@27..30 "let"
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ERROR@30..31
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R_BRACK@30..31 "]"
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WHITESPACE@31..32 " "
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R_CURLY@32..33 "}"
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WHITESPACE@33..34 "\n"
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FN@34..68
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FN_KW@34..36 "fn"
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WHITESPACE@36..37 " "
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NAME@37..38
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IDENT@37..38 "b"
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PARAM_LIST@38..40
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L_PAREN@38..39 "("
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R_PAREN@39..40 ")"
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WHITESPACE@40..41 " "
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BLOCK_EXPR@41..68
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STMT_LIST@41..68
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L_CURLY@41..42 "{"
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WHITESPACE@42..43 " "
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EXPR_STMT@43..54
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CALL_EXPR@43..54
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PATH_EXPR@43..46
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PATH@43..46
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PATH_SEGMENT@43..46
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NAME_REF@43..46
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IDENT@43..46 "foo"
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ARG_LIST@46..54
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L_PAREN@46..47 "("
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LITERAL@47..48
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INT_NUMBER@47..48 "1"
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COMMA@48..49 ","
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WHITESPACE@49..50 " "
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LITERAL@50..51
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INT_NUMBER@50..51 "2"
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COMMA@51..52 ","
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WHITESPACE@52..53 " "
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ERROR@53..54
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AT@53..54 "@"
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ERROR@54..55
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COMMA@54..55 ","
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WHITESPACE@55..56 " "
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IMPL@56..60
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IMPL_KW@56..60 "impl"
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ERROR@60..61
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COMMA@60..61 ","
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WHITESPACE@61..62 " "
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LET_STMT@62..65
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LET_KW@62..65 "let"
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ERROR@65..66
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R_PAREN@65..66 ")"
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WHITESPACE@66..67 " "
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R_CURLY@67..68 "}"
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WHITESPACE@68..69 "\n"
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FN@69..111
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FN_KW@69..71 "fn"
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WHITESPACE@71..72 " "
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NAME@72..73
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IDENT@72..73 "c"
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PARAM_LIST@73..75
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L_PAREN@73..74 "("
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R_PAREN@74..75 ")"
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WHITESPACE@75..76 " "
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BLOCK_EXPR@76..111
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STMT_LIST@76..111
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L_CURLY@76..77 "{"
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WHITESPACE@77..78 " "
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EXPR_STMT@78..93
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METHOD_CALL_EXPR@78..93
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PATH_EXPR@78..81
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PATH@78..81
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PATH_SEGMENT@78..81
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NAME_REF@78..81
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IDENT@78..81 "foo"
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DOT@81..82 "."
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NAME_REF@82..85
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IDENT@82..85 "bar"
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ARG_LIST@85..93
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L_PAREN@85..86 "("
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LITERAL@86..87
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INT_NUMBER@86..87 "1"
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COMMA@87..88 ","
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WHITESPACE@88..89 " "
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LITERAL@89..90
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INT_NUMBER@89..90 "2"
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COMMA@90..91 ","
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WHITESPACE@91..92 " "
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ERROR@92..93
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AT@92..93 "@"
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ERROR@93..94
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COMMA@93..94 ","
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WHITESPACE@94..95 " "
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ERROR@95..96
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R_BRACK@95..96 "]"
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ERROR@96..97
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COMMA@96..97 ","
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WHITESPACE@97..98 " "
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TRAIT@98..104
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TRAIT_KW@98..103 "trait"
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ERROR@103..104
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COMMA@103..104 ","
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WHITESPACE@104..105 " "
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LET_STMT@105..108
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LET_KW@105..108 "let"
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ERROR@108..109
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R_PAREN@108..109 ")"
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WHITESPACE@109..110 " "
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R_CURLY@110..111 "}"
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WHITESPACE@111..112 "\n"
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error 16..16: expected expression
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error 17..17: expected R_BRACK
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error 17..17: expected SEMICOLON
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error 17..17: expected expression
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error 25..25: expected a name
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error 26..26: expected `;`, `{`, or `(`
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error 30..30: expected pattern
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error 31..31: expected SEMICOLON
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error 53..53: expected expression
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error 54..54: expected SEMICOLON
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error 54..54: expected expression
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error 60..60: expected type
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error 60..60: expected `{`
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error 60..60: expected expression
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error 65..65: expected pattern
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error 65..65: expected SEMICOLON
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error 65..65: expected expression
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error 92..92: expected expression
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error 93..93: expected SEMICOLON
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error 93..93: expected expression
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error 95..95: expected expression
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error 96..96: expected expression
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error 103..103: expected a name
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error 104..104: expected `{`
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error 108..108: expected pattern
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error 108..108: expected SEMICOLON
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error 108..108: expected expression
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