diff options
Diffstat (limited to 'crates/ra_syntax/src/grammar/expressions.rs')
| -rw-r--r-- | crates/ra_syntax/src/grammar/expressions.rs | 81 |
1 files changed, 46 insertions, 35 deletions
diff --git a/crates/ra_syntax/src/grammar/expressions.rs b/crates/ra_syntax/src/grammar/expressions.rs index 1604d9b5a..d27eb8b7e 100644 --- a/crates/ra_syntax/src/grammar/expressions.rs +++ b/crates/ra_syntax/src/grammar/expressions.rs | |||
| @@ -45,7 +45,6 @@ pub(crate) fn block(p: &mut Parser) { | |||
| 45 | 45 | ||
| 46 | while !p.at(EOF) && !p.at(R_CURLY) { | 46 | while !p.at(EOF) && !p.at(R_CURLY) { |
| 47 | match p.current() { | 47 | match p.current() { |
| 48 | LET_KW => let_stmt(p), | ||
| 49 | // test nocontentexpr | 48 | // test nocontentexpr |
| 50 | // fn foo(){ | 49 | // fn foo(){ |
| 51 | // ;;;some_expr();;;;{;;;};;;;Ok(()) | 50 | // ;;;some_expr();;;;{;;;};;;;Ok(()) |
| @@ -55,41 +54,54 @@ pub(crate) fn block(p: &mut Parser) { | |||
| 55 | // test block_items | 54 | // test block_items |
| 56 | // fn a() { fn b() {} } | 55 | // fn a() { fn b() {} } |
| 57 | let m = p.start(); | 56 | let m = p.start(); |
| 58 | match items::maybe_item(p, items::ItemFlavor::Mod) { | 57 | let has_attrs = p.at(POUND); |
| 59 | items::MaybeItem::Item(kind) => { | 58 | attributes::outer_attributes(p); |
| 60 | m.complete(p, kind); | 59 | if p.at(LET_KW) { |
| 61 | } | 60 | let_stmt(p, m); |
| 62 | items::MaybeItem::Modifiers => { | 61 | } else { |
| 63 | m.abandon(p); | 62 | match items::maybe_item(p, items::ItemFlavor::Mod) { |
| 64 | p.error("expected an item"); | 63 | items::MaybeItem::Item(kind) => { |
| 65 | } | 64 | m.complete(p, kind); |
| 66 | // test pub_expr | 65 | } |
| 67 | // fn foo() { pub 92; } //FIXME | 66 | items::MaybeItem::Modifiers => { |
| 68 | items::MaybeItem::None => { | ||
| 69 | let is_blocklike = expressions::expr_stmt(p) == BlockLike::Block; | ||
| 70 | if p.at(R_CURLY) { | ||
| 71 | m.abandon(p); | 67 | m.abandon(p); |
| 72 | } else { | 68 | p.error("expected an item"); |
| 73 | // test no_semi_after_block | 69 | } |
| 74 | // fn foo() { | 70 | // test pub_expr |
| 75 | // if true {} | 71 | // fn foo() { pub 92; } //FIXME |
| 76 | // loop {} | 72 | items::MaybeItem::None => { |
| 77 | // match () {} | 73 | if has_attrs { |
| 78 | // while true {} | 74 | m.abandon(p); |
| 79 | // for _ in () {} | 75 | p.error( |
| 80 | // {} | 76 | "expected a let statement or an item after attributes in block", |
| 81 | // {} | 77 | ); |
| 82 | // macro_rules! test { | ||
| 83 | // () => {} | ||
| 84 | // } | ||
| 85 | // test!{} | ||
| 86 | // } | ||
| 87 | if is_blocklike { | ||
| 88 | p.eat(SEMI); | ||
| 89 | } else { | 78 | } else { |
| 90 | p.expect(SEMI); | 79 | let is_blocklike = expressions::expr_stmt(p) == BlockLike::Block; |
| 80 | if p.at(R_CURLY) { | ||
| 81 | m.abandon(p); | ||
| 82 | } else { | ||
| 83 | // test no_semi_after_block | ||
| 84 | // fn foo() { | ||
| 85 | // if true {} | ||
| 86 | // loop {} | ||
| 87 | // match () {} | ||
| 88 | // while true {} | ||
| 89 | // for _ in () {} | ||
| 90 | // {} | ||
| 91 | // {} | ||
| 92 | // macro_rules! test { | ||
| 93 | // () => {} | ||
| 94 | // } | ||
| 95 | // test!{} | ||
| 96 | // } | ||
| 97 | if is_blocklike { | ||
| 98 | p.eat(SEMI); | ||
| 99 | } else { | ||
| 100 | p.expect(SEMI); | ||
| 101 | } | ||
| 102 | m.complete(p, EXPR_STMT); | ||
| 103 | } | ||
| 91 | } | 104 | } |
| 92 | m.complete(p, EXPR_STMT); | ||
| 93 | } | 105 | } |
| 94 | } | 106 | } |
| 95 | } | 107 | } |
| @@ -106,9 +118,8 @@ pub(crate) fn block(p: &mut Parser) { | |||
| 106 | // let c = 92; | 118 | // let c = 92; |
| 107 | // let d: i32 = 92; | 119 | // let d: i32 = 92; |
| 108 | // } | 120 | // } |
| 109 | fn let_stmt(p: &mut Parser) { | 121 | fn let_stmt(p: &mut Parser, m: Marker) { |
| 110 | assert!(p.at(LET_KW)); | 122 | assert!(p.at(LET_KW)); |
| 111 | let m = p.start(); | ||
| 112 | p.bump(); | 123 | p.bump(); |
| 113 | patterns::pattern(p); | 124 | patterns::pattern(p); |
| 114 | if p.at(COLON) { | 125 | if p.at(COLON) { |