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Improve/add use_item documentation #256
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Original file line number | Diff line number | Diff line change |
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use ::crate_name; // Rust 2018 - All flavours | ||
use crate_name; // Rust 2018 - Anchored paths | ||
use item_in_scope_or_crate_name; // Rust 2018 - Uniform Paths |
38 changes: 38 additions & 0 deletions
38
crates/ra_syntax/tests/data/parser/inline/0114_use_path.txt
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,38 @@ | ||
SOURCE_FILE@[0; 154) | ||
USE_ITEM@[0; 17) | ||
USE_KW@[0; 3) | ||
WHITESPACE@[3; 4) | ||
USE_TREE@[4; 16) | ||
PATH@[4; 16) | ||
PATH_SEGMENT@[4; 16) | ||
COLONCOLON@[4; 6) | ||
NAME_REF@[6; 16) | ||
IDENT@[6; 16) "crate_name" | ||
SEMI@[16; 17) | ||
WHITESPACE@[17; 18) | ||
COMMENT@[18; 45) | ||
WHITESPACE@[45; 46) | ||
USE_ITEM@[46; 61) | ||
USE_KW@[46; 49) | ||
WHITESPACE@[49; 50) | ||
USE_TREE@[50; 60) | ||
PATH@[50; 60) | ||
PATH_SEGMENT@[50; 60) | ||
NAME_REF@[50; 60) | ||
IDENT@[50; 60) "crate_name" | ||
SEMI@[60; 61) | ||
WHITESPACE@[61; 62) | ||
COMMENT@[62; 91) | ||
WHITESPACE@[91; 92) | ||
USE_ITEM@[92; 124) | ||
USE_KW@[92; 95) | ||
WHITESPACE@[95; 96) | ||
USE_TREE@[96; 123) | ||
PATH@[96; 123) | ||
PATH_SEGMENT@[96; 123) | ||
NAME_REF@[96; 123) | ||
IDENT@[96; 123) "item_in_scope_or_crate_name" | ||
SEMI@[123; 124) | ||
WHITESPACE@[124; 125) | ||
COMMENT@[125; 153) | ||
WHITESPACE@[153; 154) |
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use some::path as some_name; | ||
use some::{ | ||
other::path as some_other_name, | ||
different::path as different_name, | ||
yet::another::path, | ||
running::out::of::synonyms::for::different::* | ||
}; |
124 changes: 124 additions & 0 deletions
124
crates/ra_syntax/tests/data/parser/inline/0115_use_alias.txt
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,124 @@ | ||
SOURCE_FILE@[0; 181) | ||
USE_ITEM@[0; 28) | ||
USE_KW@[0; 3) | ||
WHITESPACE@[3; 4) | ||
USE_TREE@[4; 27) | ||
PATH@[4; 14) | ||
PATH@[4; 8) | ||
PATH_SEGMENT@[4; 8) | ||
NAME_REF@[4; 8) | ||
IDENT@[4; 8) "some" | ||
COLONCOLON@[8; 10) | ||
PATH_SEGMENT@[10; 14) | ||
NAME_REF@[10; 14) | ||
IDENT@[10; 14) "path" | ||
WHITESPACE@[14; 15) | ||
ALIAS@[15; 27) | ||
AS_KW@[15; 17) | ||
WHITESPACE@[17; 18) | ||
NAME@[18; 27) | ||
IDENT@[18; 27) "some_name" | ||
SEMI@[27; 28) | ||
WHITESPACE@[28; 29) | ||
USE_ITEM@[29; 180) | ||
USE_KW@[29; 32) | ||
WHITESPACE@[32; 33) | ||
USE_TREE@[33; 179) | ||
PATH@[33; 37) | ||
PATH_SEGMENT@[33; 37) | ||
NAME_REF@[33; 37) | ||
IDENT@[33; 37) "some" | ||
COLONCOLON@[37; 39) | ||
USE_TREE_LIST@[39; 179) | ||
L_CURLY@[39; 40) | ||
WHITESPACE@[40; 42) | ||
USE_TREE@[42; 72) | ||
PATH@[42; 53) | ||
PATH@[42; 47) | ||
PATH_SEGMENT@[42; 47) | ||
NAME_REF@[42; 47) | ||
IDENT@[42; 47) "other" | ||
COLONCOLON@[47; 49) | ||
PATH_SEGMENT@[49; 53) | ||
NAME_REF@[49; 53) | ||
IDENT@[49; 53) "path" | ||
WHITESPACE@[53; 54) | ||
ALIAS@[54; 72) | ||
AS_KW@[54; 56) | ||
WHITESPACE@[56; 57) | ||
NAME@[57; 72) | ||
IDENT@[57; 72) "some_other_name" | ||
COMMA@[72; 73) | ||
WHITESPACE@[73; 75) | ||
USE_TREE@[75; 108) | ||
PATH@[75; 90) | ||
PATH@[75; 84) | ||
PATH_SEGMENT@[75; 84) | ||
NAME_REF@[75; 84) | ||
IDENT@[75; 84) "different" | ||
COLONCOLON@[84; 86) | ||
PATH_SEGMENT@[86; 90) | ||
NAME_REF@[86; 90) | ||
IDENT@[86; 90) "path" | ||
WHITESPACE@[90; 91) | ||
ALIAS@[91; 108) | ||
AS_KW@[91; 93) | ||
WHITESPACE@[93; 94) | ||
NAME@[94; 108) | ||
IDENT@[94; 108) "different_name" | ||
COMMA@[108; 109) | ||
WHITESPACE@[109; 111) | ||
USE_TREE@[111; 129) | ||
PATH@[111; 129) | ||
PATH@[111; 123) | ||
PATH@[111; 114) | ||
PATH_SEGMENT@[111; 114) | ||
NAME_REF@[111; 114) | ||
IDENT@[111; 114) "yet" | ||
COLONCOLON@[114; 116) | ||
PATH_SEGMENT@[116; 123) | ||
NAME_REF@[116; 123) | ||
IDENT@[116; 123) "another" | ||
COLONCOLON@[123; 125) | ||
PATH_SEGMENT@[125; 129) | ||
NAME_REF@[125; 129) | ||
IDENT@[125; 129) "path" | ||
COMMA@[129; 130) | ||
WHITESPACE@[130; 132) | ||
USE_TREE@[132; 177) | ||
PATH@[132; 174) | ||
PATH@[132; 163) | ||
PATH@[132; 158) | ||
PATH@[132; 148) | ||
PATH@[132; 144) | ||
PATH@[132; 139) | ||
PATH_SEGMENT@[132; 139) | ||
NAME_REF@[132; 139) | ||
IDENT@[132; 139) "running" | ||
COLONCOLON@[139; 141) | ||
PATH_SEGMENT@[141; 144) | ||
NAME_REF@[141; 144) | ||
IDENT@[141; 144) "out" | ||
COLONCOLON@[144; 146) | ||
PATH_SEGMENT@[146; 148) | ||
NAME_REF@[146; 148) | ||
IDENT@[146; 148) "of" | ||
COLONCOLON@[148; 150) | ||
PATH_SEGMENT@[150; 158) | ||
NAME_REF@[150; 158) | ||
IDENT@[150; 158) "synonyms" | ||
COLONCOLON@[158; 160) | ||
err: `expected identifier` | ||
PATH_SEGMENT@[160; 163) | ||
ERROR@[160; 163) | ||
FOR_KW@[160; 163) | ||
COLONCOLON@[163; 165) | ||
PATH_SEGMENT@[165; 174) | ||
NAME_REF@[165; 174) | ||
IDENT@[165; 174) "different" | ||
COLONCOLON@[174; 176) | ||
STAR@[176; 177) | ||
WHITESPACE@[177; 178) | ||
R_CURLY@[178; 179) | ||
SEMI@[179; 180) | ||
WHITESPACE@[180; 181) |
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Original file line number | Diff line number | Diff line change |
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use *; | ||
use ::*; | ||
use some::path::{*}; | ||
use some::path::{::*}; |
59 changes: 59 additions & 0 deletions
59
crates/ra_syntax/tests/data/parser/inline/0116_use_star.txt
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,59 @@ | ||
SOURCE_FILE@[0; 60) | ||
USE_ITEM@[0; 6) | ||
USE_KW@[0; 3) | ||
WHITESPACE@[3; 4) | ||
USE_TREE@[4; 5) | ||
STAR@[4; 5) | ||
SEMI@[5; 6) | ||
WHITESPACE@[6; 7) | ||
USE_ITEM@[7; 15) | ||
USE_KW@[7; 10) | ||
WHITESPACE@[10; 11) | ||
USE_TREE@[11; 14) | ||
COLONCOLON@[11; 13) | ||
STAR@[13; 14) | ||
SEMI@[14; 15) | ||
WHITESPACE@[15; 16) | ||
USE_ITEM@[16; 36) | ||
USE_KW@[16; 19) | ||
WHITESPACE@[19; 20) | ||
USE_TREE@[20; 35) | ||
PATH@[20; 30) | ||
PATH@[20; 24) | ||
PATH_SEGMENT@[20; 24) | ||
NAME_REF@[20; 24) | ||
IDENT@[20; 24) "some" | ||
COLONCOLON@[24; 26) | ||
PATH_SEGMENT@[26; 30) | ||
NAME_REF@[26; 30) | ||
IDENT@[26; 30) "path" | ||
COLONCOLON@[30; 32) | ||
USE_TREE_LIST@[32; 35) | ||
L_CURLY@[32; 33) | ||
USE_TREE@[33; 34) | ||
STAR@[33; 34) | ||
R_CURLY@[34; 35) | ||
SEMI@[35; 36) | ||
WHITESPACE@[36; 37) | ||
USE_ITEM@[37; 59) | ||
USE_KW@[37; 40) | ||
WHITESPACE@[40; 41) | ||
USE_TREE@[41; 58) | ||
PATH@[41; 51) | ||
PATH@[41; 45) | ||
PATH_SEGMENT@[41; 45) | ||
NAME_REF@[41; 45) | ||
IDENT@[41; 45) "some" | ||
COLONCOLON@[45; 47) | ||
PATH_SEGMENT@[47; 51) | ||
NAME_REF@[47; 51) | ||
IDENT@[47; 51) "path" | ||
COLONCOLON@[51; 53) | ||
USE_TREE_LIST@[53; 58) | ||
L_CURLY@[53; 54) | ||
USE_TREE@[54; 57) | ||
COLONCOLON@[54; 56) | ||
STAR@[56; 57) | ||
R_CURLY@[57; 58) | ||
SEMI@[58; 59) | ||
WHITESPACE@[59; 60) |
2 changes: 2 additions & 0 deletions
2
crates/ra_syntax/tests/data/parser/inline/0117_use_tree_list_after_path.rs
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---|---|---|
@@ -0,0 +1,2 @@ | ||
use crate::{Item}; | ||
use self::{Item}; |
37 changes: 37 additions & 0 deletions
37
crates/ra_syntax/tests/data/parser/inline/0117_use_tree_list_after_path.txt
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,37 @@ | ||
SOURCE_FILE@[0; 37) | ||
USE_ITEM@[0; 18) | ||
USE_KW@[0; 3) | ||
WHITESPACE@[3; 4) | ||
USE_TREE@[4; 17) | ||
PATH@[4; 9) | ||
PATH_SEGMENT@[4; 9) | ||
CRATE_KW@[4; 9) | ||
COLONCOLON@[9; 11) | ||
USE_TREE_LIST@[11; 17) | ||
L_CURLY@[11; 12) | ||
USE_TREE@[12; 16) | ||
PATH@[12; 16) | ||
PATH_SEGMENT@[12; 16) | ||
NAME_REF@[12; 16) | ||
IDENT@[12; 16) "Item" | ||
R_CURLY@[16; 17) | ||
SEMI@[17; 18) | ||
WHITESPACE@[18; 19) | ||
USE_ITEM@[19; 36) | ||
USE_KW@[19; 22) | ||
WHITESPACE@[22; 23) | ||
USE_TREE@[23; 35) | ||
PATH@[23; 27) | ||
PATH_SEGMENT@[23; 27) | ||
SELF_KW@[23; 27) | ||
COLONCOLON@[27; 29) | ||
USE_TREE_LIST@[29; 35) | ||
L_CURLY@[29; 30) | ||
USE_TREE@[30; 34) | ||
PATH@[30; 34) | ||
PATH_SEGMENT@[30; 34) | ||
NAME_REF@[30; 34) | ||
IDENT@[30; 34) "Item" | ||
R_CURLY@[34; 35) | ||
SEMI@[35; 36) | ||
WHITESPACE@[36; 37) |
4 changes: 4 additions & 0 deletions
4
crates/ra_syntax/tests/data/parser/inline/0118_use_tree_list.rs
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,4 @@ | ||
use {crate::path::from::root, or::path::from::crate_name}; // Rust 2018 (with a crate named `or`) | ||
use {path::from::root}; // Rust 2015 | ||
use ::{some::arbritrary::path}; // Rust 2015 | ||
use ::{{{crate::export}}}; // Nonsensical but perfectly legal nestnig |
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We should add this error checking, but to the validator and not the parser:
https://github.com/rust-analyzer/rust-analyzer/blob/0b1c0ee225a075d25d700fcd1c007615556e2afb/crates/ra_syntax/src/validation/mod.rs
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Yeah, it was just an overall comment that it was something that naturally comes up there, but should be added somewhere else.