diff options
Diffstat (limited to 'crates')
-rw-r--r-- | crates/ra_hir/src/nameres.rs | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/crates/ra_hir/src/nameres.rs b/crates/ra_hir/src/nameres.rs index 17602ee6b..edd2f25f7 100644 --- a/crates/ra_hir/src/nameres.rs +++ b/crates/ra_hir/src/nameres.rs | |||
@@ -10,12 +10,12 @@ | |||
10 | /// | 10 | /// |
11 | /// Computing `CrateDefMap` can be partitioned into several logically | 11 | /// Computing `CrateDefMap` can be partitioned into several logically |
12 | /// independent "phases". The phases are mutually recursive though, there's no | 12 | /// independent "phases". The phases are mutually recursive though, there's no |
13 | /// stric ordering. | 13 | /// strict ordering. |
14 | /// | 14 | /// |
15 | /// ## Collecting RawItems | 15 | /// ## Collecting RawItems |
16 | /// | 16 | /// |
17 | /// This happens in the `raw` module, which parses a single source file into a | 17 | /// This happens in the `raw` module, which parses a single source file into a |
18 | /// set of top-level items. Nested importa are desugared to flat imports in | 18 | /// set of top-level items. Nested imports are desugared to flat imports in |
19 | /// this phase. Macro calls are represented as a triple of (Path, Option<Name>, | 19 | /// this phase. Macro calls are represented as a triple of (Path, Option<Name>, |
20 | /// TokenTree). | 20 | /// TokenTree). |
21 | /// | 21 | /// |
@@ -24,22 +24,28 @@ | |||
24 | /// This happens in the `collector` module. In this phase, we recursively walk | 24 | /// This happens in the `collector` module. In this phase, we recursively walk |
25 | /// tree of modules, collect raw items from submodules, populate module scopes | 25 | /// tree of modules, collect raw items from submodules, populate module scopes |
26 | /// with defined items (so, we assign item ids in this phase) and record the set | 26 | /// with defined items (so, we assign item ids in this phase) and record the set |
27 | /// of unresovled imports and macros. | 27 | /// of unresolved imports and macros. |
28 | /// | 28 | /// |
29 | /// While we walk tree of modules, we also record macro_rules defenitions and | 29 | /// While we walk tree of modules, we also record macro_rules definitions and |
30 | /// expand calls to macro_rules defined macros. | 30 | /// expand calls to macro_rules defined macros. |
31 | /// | 31 | /// |
32 | /// ## Resolving Imports | 32 | /// ## Resolving Imports |
33 | /// | 33 | /// |
34 | /// TBD | 34 | /// We maintain a list of currently unresolved imports. On every iteration, we |
35 | /// try to resolve some imports from this list. If the import is resolved, we | ||
36 | /// record it, by adding an item to current module scope and, if necessary, by | ||
37 | /// recursively populating glob imports. | ||
35 | /// | 38 | /// |
36 | /// ## Resolving Macros | 39 | /// ## Resolving Macros |
37 | /// | 40 | /// |
38 | /// While macro_rules from the same crate use a global mutable namespace, macros | 41 | /// macro_rules from the same crate use a global mutable namespace. We expand |
39 | /// from other crates (including proc-macros) can be used with `foo::bar!` | 42 | /// them immediately, when we collect modules. |
40 | /// syntax. | ||
41 | /// | 43 | /// |
42 | /// TBD; | 44 | /// Macros from other crates (including proc-macros) can be used with |
45 | /// `foo::bar!` syntax. We handle them similarly to imports. There's a list of | ||
46 | /// unexpanded macros. On every iteration, we try to resolve each macro call | ||
47 | /// path and, upon success, we run macro expansion and "collect module" phase | ||
48 | /// on the result | ||
43 | 49 | ||
44 | mod per_ns; | 50 | mod per_ns; |
45 | mod raw; | 51 | mod raw; |