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authorbors[bot] <bors[bot]@users.noreply.github.com>2019-03-31 10:11:48 +0100
committerbors[bot] <bors[bot]@users.noreply.github.com>2019-03-31 10:11:48 +0100
commitc5ca49678f129045e59438df279829902034ec71 (patch)
tree3fd54185e0c064fbd6f718ac345064ce9c559efb /crates/ra_assists
parent23dd53eb35ff50508d0c0fc5878a55754b12d381 (diff)
parent55dcdb7d094f473c73f87ecf997b24f8e35f2a5e (diff)
Merge #1077
1077: Improve parsing of type bounds r=matklad a=vipentti This adds new TYPE_BOUND_LIST and TYPE_BOUND syntax kinds. These are now used when parsing type bounds. In addition parsing paths inside a bound now does not recursively parse paths, rather they are treated as separate bounds, separated by +. Basically now the generic params `struct S<T: 'a + ?Sized + (Copy)>;` in will be parsed as ``` TYPE_PARAM_LIST@[8; 33) L_ANGLE@[8; 9) TYPE_PARAM@[9; 32) NAME@[9; 10) IDENT@[9; 10) "T" COLON@[10; 11) WHITESPACE@[11; 12) TYPE_BOUND_LIST@[12; 32) TYPE_BOUND@[12; 14) LIFETIME@[12; 14) "'a" WHITESPACE@[14; 15) PLUS@[15; 16) WHITESPACE@[16; 17) TYPE_BOUND@[17; 23) QUESTION@[17; 18) PATH_TYPE@[18; 23) PATH@[18; 23) PATH_SEGMENT@[18; 23) NAME_REF@[18; 23) IDENT@[18; 23) "Sized" WHITESPACE@[23; 24) PLUS@[24; 25) WHITESPACE@[25; 26) TYPE_BOUND@[26; 32) L_PAREN@[26; 27) PATH_TYPE@[27; 31) PATH@[27; 31) PATH_SEGMENT@[27; 31) NAME_REF@[27; 31) IDENT@[27; 31) "Copy" R_PAREN@[31; 32) R_ANGLE@[32; 33) ``` Previously it was parsed, with the paths nested: ``` TYPE_PARAM_LIST@[8; 33) L_ANGLE@[8; 9) TYPE_PARAM@[9; 32) NAME@[9; 10) IDENT@[9; 10) "T" COLON@[10; 11) WHITESPACE@[11; 12) LIFETIME@[12; 14) "'a" WHITESPACE@[14; 15) PLUS@[15; 16) WHITESPACE@[16; 17) QUESTION@[17; 18) PATH_TYPE@[18; 32) PATH@[18; 23) PATH_SEGMENT@[18; 23) NAME_REF@[18; 23) IDENT@[18; 23) "Sized" WHITESPACE@[23; 24) PLUS@[24; 25) WHITESPACE@[25; 26) L_PAREN@[26; 27) PATH_TYPE@[27; 31) PATH@[27; 31) PATH_SEGMENT@[27; 31) NAME_REF@[27; 31) IDENT@[27; 31) "Copy" R_PAREN@[31; 32) R_ANGLE@[32; 33) ``` Looking for feedback. Co-authored-by: Ville Penttinen <[email protected]>
Diffstat (limited to 'crates/ra_assists')
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