Fix suggestions of unstable constants

Author: kilpkonn

src/tools/rust-analyzer/crates/hir/src/term_search/tactics.rs

@@ -17,8 +17,8 @@ use itertools::Itertools;
 use rustc_hash::FxHashSet;
 
 use crate::{
-    Adt, AssocItem, GenericDef, GenericParam, HasVisibility, Impl, ModuleDef, ScopeDef, Type,
-    TypeParam,
+    Adt, AssocItem, GenericDef, GenericParam, HasAttrs, HasVisibility, Impl, ModuleDef, ScopeDef,
+    Type, TypeParam,
 };
 
 use crate::term_search::Expr;
@@ -122,6 +122,10 @@ pub(super) fn assoc_const<'a, DB: HirDatabase>(
         .filter(move |it| it.is_visible_from(db, module))
         .filter_map(AssocItem::as_const)
         .filter_map(|it| {
+            if it.attrs(db).is_unstable() {
+                return None;
+            }
+
             let expr = Expr::Const(it);
             let ty = it.ty(db);
 
@@ -472,7 +476,7 @@ pub(super) fn impl_method<'a, DB: HirDatabase>(
 
             // Ignore functions with generics for now as they kill the performance
             // Also checking bounds for generics is problematic
-            if fn_generics.type_or_const_params(db).len() > 0 {
+            if !fn_generics.type_or_const_params(db).is_empty() {
                 return None;
             }
 
@@ -661,7 +665,7 @@ pub(super) fn impl_static_method<'a, DB: HirDatabase>(
 
             // Ignore functions with generics for now as they kill the performance
             // Also checking bounds for generics is problematic
-            if fn_generics.type_or_const_params(db).len() > 0 {
+            if !fn_generics.type_or_const_params(db).is_empty() {
                 return None;
             }
 

src/tools/rust-analyzer/docs/user/generated_config.adoc

@@ -9,10 +9,10 @@ for enum variants.
 --
 Placeholder expression to use for missing expressions in assists.
 --
-[[rust-analyzer.assist.termSearch.fuel]]rust-analyzer.assist.termSearch.fuel (default: `400`)::
+[[rust-analyzer.assist.termSearch.fuel]]rust-analyzer.assist.termSearch.fuel (default: `1800`)::
 +
 --
-Term search fuel in "units of work" for assists (Defaults to 400).
+Term search fuel in "units of work" for assists (Defaults to 1800).
 --
 [[rust-analyzer.cachePriming.enable]]rust-analyzer.cachePriming.enable (default: `true`)::
 +
@@ -378,10 +378,10 @@ Custom completion snippets.
 --
 Whether to enable term search based snippets like `Some(foo.bar().baz())`.
 --
-[[rust-analyzer.completion.termSearch.fuel]]rust-analyzer.completion.termSearch.fuel (default: `200`)::
+[[rust-analyzer.completion.termSearch.fuel]]rust-analyzer.completion.termSearch.fuel (default: `1000`)::
 +
 --
-Term search fuel in "units of work" for autocompletion (Defaults to 200).
+Term search fuel in "units of work" for autocompletion (Defaults to 1000).
 --
 [[rust-analyzer.diagnostics.disabled]]rust-analyzer.diagnostics.disabled (default: `[]`)::
 +

src/tools/rust-analyzer/editors/code/package.json

@@ -592,8 +592,8 @@
                 "title": "assist",
                 "properties": {
                     "rust-analyzer.assist.termSearch.fuel": {
-                        "markdownDescription": "Term search fuel in \"units of work\" for assists (Defaults to 400).",
-                        "default": 400,
+                        "markdownDescription": "Term search fuel in \"units of work\" for assists (Defaults to 1800).",
+                        "default": 1800,
                         "type": "integer",
                         "minimum": 0
                     }
@@ -1224,8 +1224,8 @@
                 "title": "completion",
                 "properties": {
                     "rust-analyzer.completion.termSearch.fuel": {
-                        "markdownDescription": "Term search fuel in \"units of work\" for autocompletion (Defaults to 200).",
-                        "default": 200,
+                        "markdownDescription": "Term search fuel in \"units of work\" for autocompletion (Defaults to 1000).",
+                        "default": 1000,
                         "type": "integer",
                         "minimum": 0
                     }