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
{ ... }
124 lines
3.9 KiB
Plaintext
124 lines
3.9 KiB
Plaintext
SOURCE_FILE@0..90
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FN@0..40
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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 "f"
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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..40
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STMT_LIST@7..40
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L_CURLY@7..8 "{"
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WHITESPACE@8..13 "\n "
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EXPR_STMT@13..31
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PATH_EXPR@13..31
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PATH@13..31
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PATH_SEGMENT@13..31
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NAME_REF@13..14
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IDENT@13..14 "S"
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GENERIC_ARG_LIST@14..31
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COLON2@14..16 "::"
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L_ANGLE@16..17 "<"
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TYPE_ARG@17..31
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PATH_TYPE@17..31
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PATH@17..31
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PATH@17..28
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PATH_SEGMENT@17..28
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NAME_REF@17..21
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IDENT@17..21 "Item"
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GENERIC_ARG_LIST@21..28
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COLON2@21..23 "::"
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L_ANGLE@23..24 "<"
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TYPE_ARG@24..27
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PATH_TYPE@24..27
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PATH@24..27
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PATH_SEGMENT@24..27
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NAME_REF@24..27
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IDENT@24..27 "lol"
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R_ANGLE@27..28 ">"
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COLON2@28..30 "::"
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ERROR@30..31
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L_ANGLE@30..31 "<"
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BIN_EXPR@31..38
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PATH_EXPR@31..35
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PATH@31..35
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PATH_SEGMENT@31..35
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NAME_REF@31..35
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IDENT@31..35 "nope"
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SHR@35..37 ">>"
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ERROR@37..38
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SEMICOLON@37..38 ";"
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WHITESPACE@38..39 "\n"
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R_CURLY@39..40 "}"
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WHITESPACE@40..42 "\n\n"
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FN@42..89
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FN_KW@42..44 "fn"
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WHITESPACE@44..45 " "
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NAME@45..46
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IDENT@45..46 "g"
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PARAM_LIST@46..48
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L_PAREN@46..47 "("
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R_PAREN@47..48 ")"
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WHITESPACE@48..49 " "
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BLOCK_EXPR@49..89
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STMT_LIST@49..89
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L_CURLY@49..50 "{"
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WHITESPACE@50..55 "\n "
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LET_STMT@55..76
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LET_KW@55..58 "let"
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WHITESPACE@58..59 " "
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WILDCARD_PAT@59..60
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UNDERSCORE@59..60 "_"
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COLON@60..61 ":"
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WHITESPACE@61..62 " "
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PATH_TYPE@62..76
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PATH@62..76
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PATH@62..73
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PATH_SEGMENT@62..73
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NAME_REF@62..66
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IDENT@62..66 "Item"
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GENERIC_ARG_LIST@66..73
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COLON2@66..68 "::"
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L_ANGLE@68..69 "<"
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TYPE_ARG@69..72
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PATH_TYPE@69..72
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PATH@69..72
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PATH_SEGMENT@69..72
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NAME_REF@69..72
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IDENT@69..72 "lol"
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R_ANGLE@72..73 ">"
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COLON2@73..75 "::"
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ERROR@75..76
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L_ANGLE@75..76 "<"
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EXPR_STMT@76..83
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BIN_EXPR@76..83
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PATH_EXPR@76..80
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PATH@76..80
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PATH_SEGMENT@76..80
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NAME_REF@76..80
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IDENT@76..80 "nope"
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R_ANGLE@80..81 ">"
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WHITESPACE@81..82 " "
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ERROR@82..83
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EQ@82..83 "="
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WHITESPACE@83..84 " "
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EXPR_STMT@84..87
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TUPLE_EXPR@84..86
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L_PAREN@84..85 "("
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R_PAREN@85..86 ")"
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SEMICOLON@86..87 ";"
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WHITESPACE@87..88 "\n"
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R_CURLY@88..89 "}"
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WHITESPACE@89..90 "\n"
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error 30..30: expected identifier
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error 31..31: expected COMMA
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error 31..31: expected R_ANGLE
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error 31..31: expected SEMICOLON
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error 37..37: expected expression
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error 75..75: expected identifier
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error 76..76: expected SEMICOLON
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error 82..82: expected expression
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error 83..83: expected SEMICOLON
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