Auto merge of #133476 - SomeoneToIgnore:stable, r=BoxyUwU,davidbarsky

[stable(not yet) backport] Revert r-a completions breakage

This PR revers recent completion-related changes in r-a, which caused nvim and helix to malfunction.
Changes reverted:
1. rust-lang/rust-analyzer#18167
2. rust-lang/rust-analyzer#18247
3. rust-lang/rust-analyzer#18503

See rust-lang/rust-analyzer#18503 (comment) for more context

cc `@BoxyUwU`

Author: bors

src/tools/rust-analyzer/crates/ide-completion/src/config.rs

@@ -7,7 +7,7 @@
 use hir::ImportPathConfig;
 use ide_db::{imports::insert_use::InsertUseConfig, SnippetCap};
 
-use crate::{snippet::Snippet, CompletionFieldsToResolve};
+use crate::snippet::Snippet;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CompletionConfig {
@@ -27,7 +27,6 @@ pub struct CompletionConfig {
     pub prefer_absolute: bool,
     pub snippets: Vec<Snippet>,
     pub limit: Option<usize>,
-    pub fields_to_resolve: CompletionFieldsToResolve,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq)]

src/tools/rust-analyzer/crates/ide-completion/src/lib.rs

@@ -37,31 +37,6 @@ pub use crate::{
     snippet::{Snippet, SnippetScope},
 };
 
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub struct CompletionFieldsToResolve {
-    pub resolve_label_details: bool,
-    pub resolve_tags: bool,
-    pub resolve_detail: bool,
-    pub resolve_documentation: bool,
-    pub resolve_filter_text: bool,
-    pub resolve_text_edit: bool,
-    pub resolve_command: bool,
-}
-
-impl CompletionFieldsToResolve {
-    pub const fn empty() -> Self {
-        Self {
-            resolve_label_details: false,
-            resolve_tags: false,
-            resolve_detail: false,
-            resolve_documentation: false,
-            resolve_filter_text: false,
-            resolve_text_edit: false,
-            resolve_command: false,
-        }
-    }
-}
-
 //FIXME: split the following feature into fine-grained features.
 
 // Feature: Magic Completions

src/tools/rust-analyzer/crates/ide-completion/src/tests.rs

@@ -37,8 +37,8 @@ use test_fixture::ChangeFixture;
 use test_utils::assert_eq_text;
 
 use crate::{
-    resolve_completion_edits, CallableSnippets, CompletionConfig, CompletionFieldsToResolve,
-    CompletionItem, CompletionItemKind,
+    resolve_completion_edits, CallableSnippets, CompletionConfig, CompletionItem,
+    CompletionItemKind,
 };
 
 /// Lots of basic item definitions
@@ -84,7 +84,6 @@ pub(crate) const TEST_CONFIG: CompletionConfig = CompletionConfig {
     prefer_absolute: false,
     snippets: Vec::new(),
     limit: None,
-    fields_to_resolve: CompletionFieldsToResolve::empty(),
 };
 
 pub(crate) fn completion_list(ra_fixture: &str) -> String {

src/tools/rust-analyzer/crates/ide/src/lib.rs

@@ -119,8 +119,8 @@ pub use ide_assists::{
     Assist, AssistConfig, AssistId, AssistKind, AssistResolveStrategy, SingleResolve,
 };
 pub use ide_completion::{
-    CallableSnippets, CompletionConfig, CompletionFieldsToResolve, CompletionItem,
-    CompletionItemKind, CompletionRelevance, Snippet, SnippetScope,
+    CallableSnippets, CompletionConfig, CompletionItem, CompletionItemKind, CompletionRelevance,
+    Snippet, SnippetScope,
 };
 pub use ide_db::{
     base_db::{Cancelled, CrateGraph, CrateId, FileChange, SourceRoot, SourceRootId},

src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs

@@ -12,10 +12,10 @@ use std::{
 use cfg::{CfgAtom, CfgDiff};
 use hir::Symbol;
 use ide::{
-    AssistConfig, CallableSnippets, CompletionConfig, CompletionFieldsToResolve, DiagnosticsConfig,
-    ExprFillDefaultMode, GenericParameterHints, HighlightConfig, HighlightRelatedConfig,
-    HoverConfig, HoverDocFormat, InlayFieldsToResolve, InlayHintsConfig, JoinLinesConfig,
-    MemoryLayoutHoverConfig, MemoryLayoutHoverRenderKind, Snippet, SnippetScope, SourceRootId,
+    AssistConfig, CallableSnippets, CompletionConfig, DiagnosticsConfig, ExprFillDefaultMode,
+    GenericParameterHints, HighlightConfig, HighlightRelatedConfig, HoverConfig, HoverDocFormat,
+    InlayFieldsToResolve, InlayHintsConfig, JoinLinesConfig, MemoryLayoutHoverConfig,
+    MemoryLayoutHoverRenderKind, Snippet, SnippetScope, SourceRootId,
 };
 use ide_db::{
     imports::insert_use::{ImportGranularity, InsertUseConfig, PrefixKind},
@@ -1393,7 +1393,6 @@ impl Config {
     }
 
     pub fn completion(&self, source_root: Option<SourceRootId>) -> CompletionConfig {
-        let client_capability_fields = self.completion_resolve_support_properties();
         CompletionConfig {
             enable_postfix_completions: self.completion_postfix_enable(source_root).to_owned(),
             enable_imports_on_the_fly: self.completion_autoimport_enable(source_root).to_owned()
@@ -1418,15 +1417,6 @@ impl Config {
             limit: self.completion_limit(source_root).to_owned(),
             enable_term_search: self.completion_termSearch_enable(source_root).to_owned(),
             term_search_fuel: self.completion_termSearch_fuel(source_root).to_owned() as u64,
-            fields_to_resolve: CompletionFieldsToResolve {
-                resolve_label_details: client_capability_fields.contains("labelDetails"),
-                resolve_tags: client_capability_fields.contains("tags"),
-                resolve_detail: client_capability_fields.contains("detail"),
-                resolve_documentation: client_capability_fields.contains("documentation"),
-                resolve_filter_text: client_capability_fields.contains("filterText"),
-                resolve_text_edit: client_capability_fields.contains("textEdit"),
-                resolve_command: client_capability_fields.contains("command"),
-            },
         }
     }
 

src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs

@@ -10,9 +10,9 @@ use std::{
 use anyhow::Context;
 
 use ide::{
-    AnnotationConfig, AssistKind, AssistResolveStrategy, Cancellable, CompletionFieldsToResolve,
-    FilePosition, FileRange, HoverAction, HoverGotoTypeData, InlayFieldsToResolve, Query,
-    RangeInfo, ReferenceCategory, Runnable, RunnableKind, SingleResolve, SourceChange, TextEdit,
+    AnnotationConfig, AssistKind, AssistResolveStrategy, Cancellable, FilePosition, FileRange,
+    HoverAction, HoverGotoTypeData, InlayFieldsToResolve, Query, RangeInfo, ReferenceCategory,
+    Runnable, RunnableKind, SingleResolve, SourceChange, TextEdit,
 };
 use ide_db::SymbolKind;
 use itertools::Itertools;
@@ -1019,11 +1019,9 @@ pub(crate) fn handle_completion(
 
     let items = to_proto::completion_items(
         &snap.config,
-        &completion_config.fields_to_resolve,
         &line_index,
         snap.file_version(position.file_id),
         text_document_position,
-        completion_trigger_character,
         items,
     );
 
@@ -1056,68 +1054,36 @@ pub(crate) fn handle_completion_resolve(
     };
     let source_root = snap.analysis.source_root_id(file_id)?;
 
-    let mut forced_resolve_completions_config = snap.config.completion(Some(source_root));
-    forced_resolve_completions_config.fields_to_resolve = CompletionFieldsToResolve::empty();
-
-    let position = FilePosition { file_id, offset };
-    let Some(resolved_completions) = snap.analysis.completions(
-        &forced_resolve_completions_config,
-        position,
-        resolve_data.trigger_character,
-    )?
-    else {
-        return Ok(original_completion);
-    };
-    let mut resolved_completions = to_proto::completion_items(
-        &snap.config,
-        &forced_resolve_completions_config.fields_to_resolve,
-        &line_index,
-        snap.file_version(position.file_id),
-        resolve_data.position,
-        resolve_data.trigger_character,
-        resolved_completions,
-    );
-
-    let mut resolved_completion =
-        if resolved_completions.get(resolve_data.completion_item_index).is_some() {
-            resolved_completions.swap_remove(resolve_data.completion_item_index)
-        } else {
-            return Ok(original_completion);
-        };
+    let additional_edits = snap
+        .analysis
+        .resolve_completion_edits(
+            &snap.config.completion(Some(source_root)),
+            FilePosition { file_id, offset },
+            resolve_data
+                .imports
+                .into_iter()
+                .map(|import| (import.full_import_path, import.imported_name)),
+        )?
+        .into_iter()
+        .flat_map(|edit| edit.into_iter().map(|indel| to_proto::text_edit(&line_index, indel)))
+        .collect::<Vec<_>>();
 
-    if !resolve_data.imports.is_empty() {
-        let additional_edits = snap
-            .analysis
-            .resolve_completion_edits(
-                &forced_resolve_completions_config,
-                position,
-                resolve_data
-                    .imports
-                    .into_iter()
-                    .map(|import| (import.full_import_path, import.imported_name)),
-            )?
-            .into_iter()
-            .flat_map(|edit| edit.into_iter().map(|indel| to_proto::text_edit(&line_index, indel)))
-            .collect::<Vec<_>>();
-
-        if !all_edits_are_disjoint(&resolved_completion, &additional_edits) {
-            return Err(LspError::new(
-                ErrorCode::InternalError as i32,
-                "Import edit overlaps with the original completion edits, this is not LSP-compliant"
-                    .into(),
-            )
-            .into());
-        }
+    if !all_edits_are_disjoint(&original_completion, &additional_edits) {
+        return Err(LspError::new(
+            ErrorCode::InternalError as i32,
+            "Import edit overlaps with the original completion edits, this is not LSP-compliant"
+                .into(),
+        )
+        .into());
+    }
 
-        if let Some(original_additional_edits) = resolved_completion.additional_text_edits.as_mut()
-        {
-            original_additional_edits.extend(additional_edits)
-        } else {
-            resolved_completion.additional_text_edits = Some(additional_edits);
-        }
+    if let Some(original_additional_edits) = original_completion.additional_text_edits.as_mut() {
+        original_additional_edits.extend(additional_edits)
+    } else {
+        original_completion.additional_text_edits = Some(additional_edits);
     }
 
-    Ok(resolved_completion)
+    Ok(original_completion)
 }
 
 pub(crate) fn handle_folding_range(

src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs

@@ -12,8 +12,7 @@
 
 use hir::ChangeWithProcMacros;
 use ide::{
-    AnalysisHost, CallableSnippets, CompletionConfig, CompletionFieldsToResolve, DiagnosticsConfig,
-    FilePosition, TextSize,
+    AnalysisHost, CallableSnippets, CompletionConfig, DiagnosticsConfig, FilePosition, TextSize,
 };
 use ide_db::{
     imports::insert_use::{ImportGranularity, InsertUseConfig},
@@ -173,7 +172,6 @@ fn integrated_completion_benchmark() {
             snippets: Vec::new(),
             limit: None,
             add_semicolon_to_unit: true,
-            fields_to_resolve: CompletionFieldsToResolve::empty(),
         };
         let position =
             FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() };
@@ -221,7 +219,6 @@ fn integrated_completion_benchmark() {
             snippets: Vec::new(),
             limit: None,
             add_semicolon_to_unit: true,
-            fields_to_resolve: CompletionFieldsToResolve::empty(),
         };
         let position =
             FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() };
@@ -267,7 +264,6 @@ fn integrated_completion_benchmark() {
             snippets: Vec::new(),
             limit: None,
             add_semicolon_to_unit: true,
-            fields_to_resolve: CompletionFieldsToResolve::empty(),
         };
         let position =
             FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() };

src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/capabilities.rs

@@ -448,7 +448,7 @@ impl ClientCapabilities {
             .unwrap_or_default()
     }
 
-    pub fn inlay_hint_resolve_support_properties(&self) -> FxHashSet<&str> {
+    pub fn inlay_hint_resolve_support_properties(&self) -> FxHashSet<String> {
         self.0
             .text_document
             .as_ref()
@@ -457,22 +457,8 @@ impl ClientCapabilities {
             .map(|inlay_resolve| inlay_resolve.properties.iter())
             .into_iter()
             .flatten()
-            .map(|s| s.as_str())
-            .collect()
-    }
-
-    pub fn completion_resolve_support_properties(&self) -> FxHashSet<&str> {
-        self.0
-            .text_document
-            .as_ref()
-            .and_then(|text| text.completion.as_ref())
-            .and_then(|completion_caps| completion_caps.completion_item.as_ref())
-            .and_then(|completion_item_caps| completion_item_caps.resolve_support.as_ref())
-            .map(|resolve_support| resolve_support.properties.iter())
-            .into_iter()
-            .flatten()
-            .map(|s| s.as_str())
-            .collect()
+            .cloned()
+            .collect::<FxHashSet<_>>()
     }
 
     pub fn hover_markdown_support(&self) -> bool {

src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/ext.rs

@@ -825,8 +825,6 @@ pub struct CompletionResolveData {
     pub position: lsp_types::TextDocumentPositionParams,
     pub imports: Vec<CompletionImport>,
     pub version: Option<i32>,
-    pub trigger_character: Option<char>,
-    pub completion_item_index: usize,
 }
 
 #[derive(Debug, Serialize, Deserialize)]