11 files changed, 99 insertions, 47 deletions
diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index be18c845c..3fc2eccdd 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -678,6 +678,10 @@ impl Static {
    pub fn name(self, db: &dyn HirDatabase) -> Option<Name> {
        db.static_data(self.id).name.clone()
    }
+    pub fn is_mut(self, db: &dyn HirDatabase) -> bool {
+        db.static_data(self.id).mutable
+    }
 }
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
diff --git a/crates/ra_hir_def/src/data.rs b/crates/ra_hir_def/src/data.rs
index e7eb2bb11..e2130d931 100644
--- a/crates/ra_hir_def/src/data.rs
+++ b/crates/ra_hir_def/src/data.rs
@@ -251,11 +251,6 @@ impl ConstData {
        Arc::new(ConstData::new(db, vis_default, node))
    }
-    pub(crate) fn static_data_query(db: &dyn DefDatabase, konst: StaticId) -> Arc<ConstData> {
-        let node = konst.lookup(db).source(db);
-        Arc::new(ConstData::new(db, RawVisibility::private(), node))
-    }
    fn new<N: NameOwner + TypeAscriptionOwner + VisibilityOwner>(
        db: &dyn DefDatabase,
        vis_default: RawVisibility,
@@ -270,6 +265,32 @@ impl ConstData {
    }
 }
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct StaticData {
+    pub name: Option<Name>,
+    pub type_ref: TypeRef,
+    pub visibility: RawVisibility,
+    pub mutable: bool,
+}
+impl StaticData {
+    pub(crate) fn static_data_query(db: &dyn DefDatabase, konst: StaticId) -> Arc<StaticData> {
+        let node = konst.lookup(db).source(db);
+        let ctx = LowerCtx::new(db, node.file_id);
+        let name = node.value.name().map(|n| n.as_name());
+        let type_ref = TypeRef::from_ast_opt(&ctx, node.value.ascribed_type());
+        let mutable = node.value.mut_token().is_some();
+        let visibility = RawVisibility::from_ast_with_default(
+            db,
+            RawVisibility::private(),
+            node.map(|n| n.visibility()),
+        );
+        Arc::new(StaticData { name, type_ref, visibility, mutable })
+    }
+}
 fn collect_items_in_macros(
    db: &dyn DefDatabase,
    expander: &mut Expander,
diff --git a/crates/ra_hir_def/src/db.rs b/crates/ra_hir_def/src/db.rs
index 5dc7395f5..e665ab45d 100644
--- a/crates/ra_hir_def/src/db.rs
+++ b/crates/ra_hir_def/src/db.rs
@@ -10,7 +10,7 @@ use crate::{
    adt::{EnumData, StructData},
    attr::Attrs,
    body::{scope::ExprScopes, Body, BodySourceMap},
-    data::{ConstData, FunctionData, ImplData, TraitData, TypeAliasData},
+    data::{ConstData, FunctionData, ImplData, StaticData, TraitData, TypeAliasData},
    docs::Documentation,
    generics::GenericParams,
    lang_item::{LangItemTarget, LangItems},
@@ -77,8 +77,8 @@ pub trait DefDatabase: InternDatabase + AstDatabase + Upcast<dyn AstDatabase> {
    #[salsa::invoke(ConstData::const_data_query)]
    fn const_data(&self, konst: ConstId) -> Arc<ConstData>;
-    #[salsa::invoke(ConstData::static_data_query)]
+    #[salsa::invoke(StaticData::static_data_query)]
-    fn static_data(&self, konst: StaticId) -> Arc<ConstData>;
+    fn static_data(&self, konst: StaticId) -> Arc<StaticData>;
    #[salsa::invoke(Body::body_with_source_map_query)]
    fn body_with_source_map(&self, def: DefWithBodyId) -> (Arc<Body>, Arc<BodySourceMap>);
diff --git a/crates/ra_hir_ty/src/infer.rs b/crates/ra_hir_ty/src/infer.rs
index a21ad8d86..fb7c6cd8c 100644
--- a/crates/ra_hir_ty/src/infer.rs
+++ b/crates/ra_hir_ty/src/infer.rs
@@ -22,7 +22,7 @@ use rustc_hash::FxHashMap;
 use hir_def::{
    body::Body,
-    data::{ConstData, FunctionData},
+    data::{ConstData, FunctionData, StaticData},
    expr::{BindingAnnotation, ExprId, PatId},
    lang_item::LangItemTarget,
    path::{path, Path},
@@ -71,7 +71,7 @@ pub(crate) fn infer_query(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<Infer
    match def {
        DefWithBodyId::ConstId(c) => ctx.collect_const(&db.const_data(c)),
        DefWithBodyId::FunctionId(f) => ctx.collect_fn(&db.function_data(f)),
-        DefWithBodyId::StaticId(s) => ctx.collect_const(&db.static_data(s)),
+        DefWithBodyId::StaticId(s) => ctx.collect_static(&db.static_data(s)),
    }
    ctx.infer_body();
@@ -485,6 +485,10 @@ impl<'a> InferenceContext<'a> {
        self.return_ty = self.make_ty(&data.type_ref);
    }
+    fn collect_static(&mut self, data: &StaticData) {
+        self.return_ty = self.make_ty(&data.type_ref);
+    }
    fn collect_fn(&mut self, data: &FunctionData) {
        let body = Arc::clone(&self.body); // avoid borrow checker problem
        let ctx = crate::lower::TyLoweringContext::new(self.db, &self.resolver)
diff --git a/crates/ra_ide/src/snapshots/highlight_strings.html b/crates/ra_ide/src/snapshots/highlight_strings.html
index de06daf72..752b487e8 100644
--- a/crates/ra_ide/src/snapshots/highlight_strings.html
+++ b/crates/ra_ide/src/snapshots/highlight_strings.html
@@ -27,13 +27,13 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 .keyword.unsafe     { color: #BC8383; font-weight: bold; }
 .control            { font-style: italic; }
 </style>
-<pre><code><span class="macro">macro_rules!</span> println {
+<pre><code><span class="macro">macro_rules!</span> <span class="macro declaration">println</span> {
    ($($arg:tt)*) =&gt; ({
        $<span class="keyword">crate</span>::io::_print($<span class="keyword">crate</span>::format_args_nl!($($arg)*));
    })
 }
 #[rustc_builtin_macro]
-<span class="macro">macro_rules!</span> format_args_nl {
+<span class="macro">macro_rules!</span> <span class="macro declaration">format_args_nl</span> {
    ($fmt:expr) =&gt; {{ <span class="comment">/* compiler built-in */</span> }};
    ($fmt:expr, $($args:tt)*) =&gt; {{ <span class="comment">/* compiler built-in */</span> }};
 }
diff --git a/crates/ra_ide/src/snapshots/highlighting.html b/crates/ra_ide/src/snapshots/highlighting.html
index 4b12fe823..4c27aade4 100644
--- a/crates/ra_ide/src/snapshots/highlighting.html
+++ b/crates/ra_ide/src/snapshots/highlighting.html
@@ -33,11 +33,13 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
    <span class="keyword">pub</span> <span class="field declaration">y</span>: <span class="builtin_type">i32</span>,
 }
+<span class="keyword">static</span> <span class="keyword">mut</span> <span class="static declaration mutable">STATIC_MUT</span>: <span class="builtin_type">i32</span> = <span class="numeric_literal">0</span>;
 <span class="keyword">fn</span> <span class="function declaration">foo</span>&lt;<span class="lifetime declaration">'a</span>, <span class="type_param declaration">T</span>&gt;() -&gt; <span class="type_param">T</span> {
    <span class="function">foo</span>::&lt;<span class="lifetime">'a</span>, <span class="builtin_type">i32</span>&gt;()
 }
-<span class="macro">macro_rules!</span> def_fn {
+<span class="macro">macro_rules!</span> <span class="macro declaration">def_fn</span> {
    ($($tt:tt)*) =&gt; {$($tt)*}
 }
@@ -56,7 +58,10 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
        <span class="keyword">let</span> <span class="variable declaration">x</span> = <span class="numeric_literal">92</span>;
        <span class="variable mutable">vec</span>.<span class="unresolved_reference">push</span>(<span class="struct">Foo</span> { <span class="field">x</span>, <span class="field">y</span>: <span class="numeric_literal">1</span> });
    }
-    <span class="keyword unsafe">unsafe</span> { <span class="variable mutable">vec</span>.<span class="unresolved_reference">set_len</span>(<span class="numeric_literal">0</span>); }
+    <span class="keyword unsafe">unsafe</span> {
+        <span class="variable mutable">vec</span>.<span class="unresolved_reference">set_len</span>(<span class="numeric_literal">0</span>);
+        <span class="static mutable">STATIC_MUT</span> = <span class="numeric_literal">1</span>;
+    }
    <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">x</span> = <span class="numeric_literal">42</span>;
    <span class="keyword">let</span> <span class="variable declaration mutable">y</span> = &<span class="keyword">mut</span> <span class="variable mutable">x</span>;
diff --git a/crates/ra_ide/src/syntax_highlighting.rs b/crates/ra_ide/src/syntax_highlighting.rs
index 6658c7bb2..d53a39f57 100644
--- a/crates/ra_ide/src/syntax_highlighting.rs
+++ b/crates/ra_ide/src/syntax_highlighting.rs
@@ -167,6 +167,19 @@ pub(crate) fn highlight(
                        binding_hash: None,
                    });
                }
+                if let Some(name) = mc.is_macro_rules() {
+                    if let Some((highlight, binding_hash)) = highlight_element(
+                        &sema,
+                        &mut bindings_shadow_count,
+                        name.syntax().clone().into(),
+                    ) {
+                        stack.add(HighlightedRange {
+                            range: name.syntax().text_range(),
+                            highlight,
+                            binding_hash,
+                        });
+                    }
+                }
                continue;
            }
            WalkEvent::Leave(Some(mc)) => {
@@ -431,10 +444,16 @@ fn highlight_name(db: &RootDatabase, def: Definition) -> Highlight {
            hir::ModuleDef::Adt(hir::Adt::Union(_)) => HighlightTag::Union,
            hir::ModuleDef::EnumVariant(_) => HighlightTag::EnumVariant,
            hir::ModuleDef::Const(_) => HighlightTag::Constant,
-            hir::ModuleDef::Static(_) => HighlightTag::Static,
            hir::ModuleDef::Trait(_) => HighlightTag::Trait,
            hir::ModuleDef::TypeAlias(_) => HighlightTag::TypeAlias,
            hir::ModuleDef::BuiltinType(_) => HighlightTag::BuiltinType,
+            hir::ModuleDef::Static(s) => {
+                let mut h = Highlight::new(HighlightTag::Static);
+                if s.is_mut(db) {
+                    h |= HighlightModifier::Mutable;
+                }
+                return h;
+            }
        },
        Definition::SelfType(_) => HighlightTag::SelfType,
        Definition::TypeParam(_) => HighlightTag::TypeParam,
diff --git a/crates/ra_ide/src/syntax_highlighting/tests.rs b/crates/ra_ide/src/syntax_highlighting/tests.rs
index d2926ba78..13894869c 100644
--- a/crates/ra_ide/src/syntax_highlighting/tests.rs
+++ b/crates/ra_ide/src/syntax_highlighting/tests.rs
@@ -17,6 +17,8 @@ struct Foo {
    pub y: i32,
 }
+static mut STATIC_MUT: i32 = 0;
 fn foo<'a, T>() -> T {
    foo::<'a, i32>()
 }
@@ -40,7 +42,10 @@ fn main() {
        let x = 92;
        vec.push(Foo { x, y: 1 });
    }
-    unsafe { vec.set_len(0); }
+    unsafe {
+        vec.set_len(0);
+        STATIC_MUT = 1;
+    }
    let mut x = 42;
    let y = &mut x;
diff --git a/crates/ra_toolchain/src/lib.rs b/crates/ra_toolchain/src/lib.rs
index 3c307a0ea..3d2865e09 100644
--- a/crates/ra_toolchain/src/lib.rs
+++ b/crates/ra_toolchain/src/lib.rs
@@ -53,10 +53,9 @@ fn lookup_in_path(exec: &str) -> bool {
    let paths = env::var_os("PATH").unwrap_or_default();
    let mut candidates = env::split_paths(&paths).flat_map(|path| {
        let candidate = path.join(&exec);
-        let with_exe = if env::consts::EXE_EXTENSION == "" {
+        let with_exe = match env::consts::EXE_EXTENSION {
-            None
+            "" => None,
-        } else {
+            it => Some(candidate.with_extension(it)),
-            Some(candidate.with_extension(env::consts::EXE_EXTENSION))
        };
        iter::once(candidate).chain(with_exe)
    });
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index fa72a9cc6..3f12dd718 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -174,7 +174,6 @@ pub fn main_loop(ws_roots: Vec<PathBuf>, config: Config, connection: Connection)
    };
    loop_state.roots_total = world_state.vfs.read().n_roots();
-    loop_state.roots_scanned = 0;
    let pool = ThreadPool::default();
    let (task_sender, task_receiver) = unbounded::<Task>();
@@ -401,10 +400,12 @@ fn loop_turn(
    }
    let max_in_flight_libs = pool.max_count().saturating_sub(2).max(1);
-    while loop_state.in_flight_libraries < max_in_flight_libs
+    while loop_state.in_flight_libraries < max_in_flight_libs {
-        && !loop_state.pending_libraries.is_empty()
+        let (root, files) = match loop_state.pending_libraries.pop() {
-    {
+            Some(it) => it,
-        let (root, files) = loop_state.pending_libraries.pop().unwrap();
+            None => break,
+        };
        loop_state.in_flight_libraries += 1;
        let sender = libdata_sender.clone();
        pool.execute(move || {
diff --git a/crates/rust-analyzer/src/world.rs b/crates/rust-analyzer/src/world.rs
index 16020648d..6333c15b2 100644
--- a/crates/rust-analyzer/src/world.rs
+++ b/crates/rust-analyzer/src/world.rs
@@ -137,15 +137,6 @@ impl WorldState {
            opts
        };
-        // Create crate graph from all the workspaces
-        let mut crate_graph = CrateGraph::default();
-        let mut load = |path: &std::path::Path| {
-            // Some path from metadata will be non canonicalized, e.g. /foo/../bar/lib.rs
-            let path = path.canonicalize().ok()?;
-            let vfs_file = vfs.load(&path);
-            vfs_file.map(|f| FileId(f.0))
-        };
        let proc_macro_client = match &config.proc_macro_srv {
            None => ProcMacroClient::dummy(),
            Some((path, args)) => match ProcMacroClient::extern_process(path.into(), args) {
@@ -161,19 +152,22 @@ impl WorldState {
            },
        };
-        workspaces
+        // Create crate graph from all the workspaces
-            .iter()
+        let mut crate_graph = CrateGraph::default();
-            .map(|ws| {
+        let mut load = |path: &Path| {
-                ws.to_crate_graph(
+            // Some path from metadata will be non canonicalized, e.g. /foo/../bar/lib.rs
-                    &default_cfg_options,
+            let path = path.canonicalize().ok()?;
-                    &extern_source_roots,
+            let vfs_file = vfs.load(&path);
-                    &proc_macro_client,
+            vfs_file.map(|f| FileId(f.0))
-                    &mut load,
+        };
-                )
+        for ws in workspaces.iter() {
-            })
+            crate_graph.extend(ws.to_crate_graph(
-            .for_each(|graph| {
+                &default_cfg_options,
-                crate_graph.extend(graph);
+                &extern_source_roots,
-            });
+                &proc_macro_client,
+                &mut load,
+            ));
+        }
        change.set_crate_graph(crate_graph);
        let flycheck = config.check.as_ref().and_then(|c| create_flycheck(&workspaces, c));