Added test for check doc strings in crates.

#1856

crates/ra_assists/src/assist_ctx.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_db::FileRange;
 use ra_fmt::{leading_indent, reindent};

crates/ra_assists/src/assists/add_derive.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{
     ast::{self, AstNode, AttrsOwner},

crates/ra_assists/src/assists/add_explicit_type.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{db::HirDatabase, HirDisplay, Ty};
 use ra_syntax::{
     ast::{self, AstNode, LetStmt, NameOwner},

crates/ra_assists/src/assists/add_impl.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use format_buf::format;
 use hir::db::HirDatabase;
 use join_to_string::join;

crates/ra_assists/src/assists/add_missing_impl_members.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{db::HirDatabase, HasSource};
 use ra_syntax::{
     ast::{self, make, AstNode, NameOwner},

crates/ra_assists/src/assists/auto_import.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{self, db::HirDatabase};
 use ra_text_edit::TextEditBuilder;
 

crates/ra_assists/src/assists/change_visibility.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{
     ast::{self, NameOwner, VisibilityOwner},

crates/ra_assists/src/assists/fill_match_arms.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::iter;
 
 use hir::{db::HirDatabase, Adt, HasSource};

crates/ra_assists/src/assists/flip_binexpr.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::ast::{AstNode, BinExpr, BinOp};
 

crates/ra_assists/src/assists/flip_comma.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{algo::non_trivia_sibling, Direction, T};
 

crates/ra_assists/src/assists/inline_local_variable.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{
     ast::{self, AstNode, AstToken},

crates/ra_assists/src/assists/introduce_variable.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use format_buf::format;
 use hir::db::HirDatabase;
 use ra_syntax::{

crates/ra_assists/src/assists/merge_match_arms.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{Assist, AssistCtx, AssistId, TextRange, TextUnit};
 use hir::db::HirDatabase;
 use ra_syntax::ast::{AstNode, MatchArm};

crates/ra_assists/src/assists/move_bounds.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{
     ast::{self, make, AstNode, NameOwner, TypeBoundsOwner},

crates/ra_assists/src/assists/move_guard.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{
     ast,

crates/ra_assists/src/assists/raw_string.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::db::HirDatabase;
 use ra_syntax::{ast::AstNode, ast::Literal, TextRange, TextUnit};
 

crates/ra_assists/src/assists/remove_dbg.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{Assist, AssistCtx, AssistId};
 use hir::db::HirDatabase;
 use ra_syntax::{

crates/ra_assists/src/assists/replace_if_let_with_match.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use format_buf::format;
 use hir::db::HirDatabase;
 use ra_fmt::extract_trivial_expression;

crates/ra_assists/src/assists/split_import.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::iter::successors;
 
 use hir::db::HirDatabase;

crates/ra_assists/src/ast_editor.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{iter, ops::RangeInclusive};
 
 use arrayvec::ArrayVec;

crates/ra_assists/src/marks.rs

@@ -1,3 +1,5 @@
+//! See test_utils/src/marks.rs
+
 test_utils::marks!(
     introduce_var_in_comment_is_not_applicable
     test_introduce_var_expr_stmt

crates/ra_batch/src/lib.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{collections::HashSet, error::Error, path::Path};
 
 use rustc_hash::FxHashMap;

crates/ra_cli/src/analysis_bench.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{
     path::{Path, PathBuf},
     sync::Arc,

crates/ra_cli/src/analysis_stats.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{collections::HashSet, fmt::Write, path::Path, time::Instant};
 
 use ra_db::SourceDatabase;

crates/ra_cli/src/help.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 pub const GLOBAL_HELP: &str = "ra-cli
 
 USAGE:

crates/ra_cli/src/main.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 mod analysis_stats;
 mod analysis_bench;
 mod help;

crates/ra_db/src/input.rs

@@ -1,10 +1,11 @@
-/// This module specifies the input to rust-analyzer. In some sense, this is
-/// **the** most important module, because all other fancy stuff is strictly
-/// derived from this input.
-///
-/// Note that neither this module, nor any other part of the analyzer's core do
-/// actual IO. See `vfs` and `project_model` in the `ra_lsp_server` crate for how
-/// actual IO is done and lowered to input.
+//! This module specifies the input to rust-analyzer. In some sense, this is
+//! **the** most important module, because all other fancy stuff is strictly
+//! derived from this input.
+//!
+//! Note that neither this module, nor any other part of the analyzer's core do
+//! actual IO. See `vfs` and `project_model` in the `ra_lsp_server` crate for how
+//! actual IO is done and lowered to input.
+
 use relative_path::{RelativePath, RelativePathBuf};
 use rustc_hash::FxHashMap;
 

crates/ra_hir/src/code_model.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 pub(crate) mod src;
 pub(crate) mod docs;
 

crates/ra_hir/src/code_model/docs.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use ra_syntax::ast;

crates/ra_hir/src/code_model/src.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{
     ast::{self, AstNode},
     SyntaxNode,

crates/ra_hir/src/db.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use ra_db::{salsa, SourceDatabase};

crates/ra_hir/src/diagnostics.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{any::Any, fmt};
 
 use ra_syntax::{ast, AstNode, AstPtr, SyntaxNode, SyntaxNodePtr, TextRange};

crates/ra_hir/src/either.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum Either<A, B> {
     A(A),

crates/ra_hir/src/expr.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 pub(crate) mod lower;
 pub(crate) mod scope;
 pub(crate) mod validation;

crates/ra_hir/src/expr/lower.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_arena::Arena;
 use ra_syntax::{
     ast::{

crates/ra_hir/src/expr/scope.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use ra_arena::{impl_arena_id, Arena, RawId};

crates/ra_hir/src/expr/validation.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use ra_syntax::ast;

crates/ra_hir/src/from_source.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::{FileId, FilePosition};
 use ra_syntax::{
     algo::find_node_at_offset,

crates/ra_hir/src/ids.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{
     hash::{Hash, Hasher},
     sync::Arc,

crates/ra_hir/src/impl_block.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use rustc_hash::FxHashMap;
 use std::sync::Arc;
 

crates/ra_hir/src/lang_item.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use rustc_hash::FxHashMap;
 use std::sync::Arc;
 

crates/ra_hir/src/lib.rs

@@ -1,5 +1,3 @@
-#![recursion_limit = "512"]
-
 //! HIR (previously known as descriptors) provides a high-level object oriented
 //! access to Rust code.
 //!
@@ -7,6 +5,8 @@
 //! to a particular crate instance. That is, it has cfg flags and features
 //! applied. So, the relation between syntax and HIR is many-to-one.
 
+#![recursion_limit = "512"]
+
 macro_rules! impl_froms {
     ($e:ident: $($v:ident $(($($sv:ident),*))?),*) => {
         $(

crates/ra_hir/src/marks.rs

@@ -1,3 +1,5 @@
+//! See test_utils/src/marks.rs
+
 test_utils::marks!(
     bogus_paths
     name_res_works_for_broken_modules

crates/ra_hir/src/mock.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{panic, sync::Arc};
 
 use parking_lot::Mutex;

crates/ra_hir/src/name.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::fmt;
 
 use ra_syntax::{ast, SmolStr};

crates/ra_hir/src/nameres/collector.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::FileId;
 use ra_syntax::{ast, SmolStr};
 use rustc_hash::FxHashMap;

crates/ra_hir/src/nameres/per_ns.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{MacroDef, ModuleDef};
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]

crates/ra_hir/src/nameres/raw.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{ops::Index, sync::Arc};
 
 use ra_arena::{impl_arena_id, map::ArenaMap, Arena, RawId};

crates/ra_hir/src/path.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{iter, sync::Arc};
 
 use ra_syntax::{

crates/ra_hir/src/source_binder.rs

@@ -1,10 +1,10 @@
-/// Lookup hir elements using positions in the source code. This is a lossy
-/// transformation: in general, a single source might correspond to several
-/// modules, functions, etc, due to macros, cfgs and `#[path=]` attributes on
-/// modules.
-///
-/// So, this modules should not be used during hir construction, it exists
-/// purely for "IDE needs".
+//! Lookup hir elements using positions in the source code. This is a lossy
+//! transformation: in general, a single source might correspond to several
+//! modules, functions, etc, due to macros, cfgs and `#[path=]` attributes on
+//! modules.
+//!
+//! So, this modules should not be used during hir construction, it exists
+//! purely for "IDE needs".
 use std::sync::Arc;
 
 use ra_db::FileId;

crates/ra_hir/src/source_id.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{
     hash::{Hash, Hasher},
     marker::PhantomData,

crates/ra_hir/src/ty/display.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::fmt;
 
 use crate::db::HirDatabase;

crates/ra_hir/src/ty/op.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use super::{InferTy, Ty, TypeCtor};
 use crate::{
     expr::{BinaryOp, CmpOp},

crates/ra_hir/src/ty/primitive.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::fmt;
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]

crates/ra_ide_api/src/assists.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::{FilePosition, FileRange};
 
 use crate::{db::RootDatabase, SourceChange, SourceFileEdit};

crates/ra_ide_api/src/call_info.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::SourceDatabase;
 use ra_syntax::{
     algo::find_node_at_offset,

crates/ra_ide_api/src/change.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{fmt, sync::Arc, time};
 
 use ra_db::{

crates/ra_ide_api/src/completion.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 mod completion_item;
 mod completion_context;
 mod presentation;

crates/ra_ide_api/src/completion/complete_dot.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{Adt, Ty, TypeCtor};
 
 use crate::completion::completion_item::CompletionKind;

crates/ra_ide_api/src/completion/complete_fn_param.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{
     algo::visit::{visitor_ctx, VisitorCtx},
     ast, AstNode,

crates/ra_ide_api/src/completion/complete_keyword.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{
     algo::visit::{visitor, Visitor},
     ast::{self, LoopBodyOwner},

crates/ra_ide_api/src/completion/complete_macro_in_item_position.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::completion::{CompletionContext, Completions};
 
 pub(super) fn complete_macro_in_item_position(acc: &mut Completions, ctx: &CompletionContext) {

crates/ra_ide_api/src/completion/complete_path.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{Adt, Either, PathResolution};
 use ra_syntax::AstNode;
 use test_utils::tested_by;

crates/ra_ide_api/src/completion/complete_pattern.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::completion::{CompletionContext, Completions};
 
 /// Completes constats and paths in patterns.

crates/ra_ide_api/src/completion/complete_postfix.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{
     completion::{
         completion_context::CompletionContext,

crates/ra_ide_api/src/completion/complete_record_literal.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::Substs;
 
 use crate::completion::{CompletionContext, Completions};

crates/ra_ide_api/src/completion/complete_record_pattern.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::Substs;
 
 use crate::completion::{CompletionContext, Completions};

crates/ra_ide_api/src/completion/complete_scope.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_assists::auto_import_text_edit;
 use ra_syntax::{ast, AstNode, SmolStr};
 use ra_text_edit::TextEditBuilder;

crates/ra_ide_api/src/completion/complete_snippet.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::completion::{
     completion_item::Builder, CompletionContext, CompletionItem, CompletionItemKind,
     CompletionKind, Completions,

crates/ra_ide_api/src/completion/completion_context.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{
     algo::{find_covering_element, find_node_at_offset},
     ast, AstNode, Parse, SourceFile,

crates/ra_ide_api/src/completion/completion_item.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::fmt;
 
 use hir::Documentation;

crates/ra_ide_api/src/completion/presentation.rs

@@ -1,4 +1,5 @@
 //! This modules takes care of rendering various definitions as completion items.
+
 use hir::{Docs, HasSource, HirDisplay, ScopeDef, Ty, TypeWalk};
 use join_to_string::join;
 use ra_syntax::ast::NameOwner;

crates/ra_ide_api/src/db.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use ra_db::{

crates/ra_ide_api/src/diagnostics.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::cell::RefCell;
 
 use hir::diagnostics::{AstDiagnostic, Diagnostic as _, DiagnosticSink};

crates/ra_ide_api/src/display/function_signature.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::fmt::{self, Display};
 
 use hir::{Docs, Documentation, HasSource};

crates/ra_ide_api/src/display/navigation_target.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{AssocItem, FieldSource, HasSource, ModuleSource};
 use ra_db::{FileId, SourceDatabase};
 use ra_syntax::{

crates/ra_ide_api/src/display/short_label.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use format_buf::format;
 use ra_syntax::ast::{self, AstNode, NameOwner, TypeAscriptionOwner, VisibilityOwner};
 

crates/ra_ide_api/src/display/structure.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::TextRange;
 
 use ra_syntax::{

crates/ra_ide_api/src/extend_selection.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::SourceDatabase;
 use ra_syntax::{
     algo::find_covering_element,

crates/ra_ide_api/src/feature_flags.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use rustc_hash::FxHashMap;
 
 /// Feature flags hold fine-grained toggles for all *user-visible* features of

crates/ra_ide_api/src/folding_ranges.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use rustc_hash::FxHashSet;
 
 use ra_syntax::{

crates/ra_ide_api/src/goto_definition.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::{FileId, SourceDatabase};
 use ra_syntax::{
     algo::{

crates/ra_ide_api/src/goto_type_definition.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::SourceDatabase;
 use ra_syntax::{ast, AstNode};
 

crates/ra_ide_api/src/hover.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{Adt, HasSource, HirDisplay};
 use ra_db::SourceDatabase;
 use ra_syntax::{

crates/ra_ide_api/src/impls.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{db::HirDatabase, ApplicationTy, FromSource, Ty, TypeCtor};
 use ra_db::SourceDatabase;
 use ra_syntax::{algo::find_node_at_offset, ast, AstNode};

crates/ra_ide_api/src/inlay_hints.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{db::RootDatabase, FileId};
 use hir::{HirDisplay, SourceAnalyzer, Ty};
 use ra_syntax::{

crates/ra_ide_api/src/join_lines.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use itertools::Itertools;
 use ra_fmt::{compute_ws, extract_trivial_expression};
 use ra_syntax::{

crates/ra_ide_api/src/line_index.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::TextUnit;
 use rustc_hash::FxHashMap;
 use superslice::Ext;

crates/ra_ide_api/src/line_index_utils.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::{line_index::Utf16Char, LineCol, LineIndex};
 use ra_syntax::{TextRange, TextUnit};
 use ra_text_edit::{AtomTextEdit, TextEdit};

crates/ra_ide_api/src/marks.rs

@@ -1,3 +1,5 @@
+//! See test_utils/src/marks.rs
+
 test_utils::marks!(
     inserts_parens_for_function_calls
     goto_definition_works_for_macros

crates/ra_ide_api/src/matching_brace.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{ast::AstNode, SourceFile, SyntaxKind, TextUnit, T};
 
 pub fn matching_brace(file: &SourceFile, offset: TextUnit) -> Option<TextUnit> {

crates/ra_ide_api/src/mock_analysis.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::sync::Arc;
 
 use relative_path::RelativePathBuf;

crates/ra_ide_api/src/name_ref_kind.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::Either;
 use ra_syntax::{ast, AstNode, AstPtr};
 use test_utils::tested_by;

crates/ra_ide_api/src/parent_module.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_db::{CrateId, FileId, FilePosition};
 
 use crate::{db::RootDatabase, NavigationTarget};

crates/ra_ide_api/src/references.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use hir::{Either, ModuleSource};
 use ra_db::SourceDatabase;
 use ra_syntax::{algo::find_node_at_offset, ast, AstNode, SourceFile, SyntaxNode};

crates/ra_ide_api/src/runnables.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use itertools::Itertools;
 use ra_db::SourceDatabase;
 use ra_syntax::{

crates/ra_ide_api/src/status.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use std::{fmt, iter::FromIterator, sync::Arc};
 
 use hir::MacroFile;

crates/ra_ide_api/src/syntax_highlighting.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use rustc_hash::{FxHashMap, FxHashSet};
 
 use hir::{Mutability, Ty};

crates/ra_ide_api/src/syntax_tree.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use crate::db::RootDatabase;
 use ra_db::SourceDatabase;
 use ra_syntax::{

crates/ra_ide_api/src/test_utils.rs

@@ -1,3 +1,5 @@
+//! FIXME: write short doc here
+
 use ra_syntax::{SourceFile, TextUnit};
 use ra_text_edit::TextEdit;