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-rw-r--r--crates/hir_def/src/diagnostics.rs227
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diff --git a/crates/hir_def/src/diagnostics.rs b/crates/hir_def/src/diagnostics.rs
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1//! Diagnostics produced by `hir_def`.
2
3use std::any::Any;
4use stdx::format_to;
5
6use cfg::{CfgExpr, CfgOptions, DnfExpr};
7use hir_expand::diagnostics::{Diagnostic, DiagnosticCode, DiagnosticSink};
8use hir_expand::{HirFileId, InFile};
9use syntax::{ast, AstPtr, SyntaxNodePtr, TextRange};
10
11use crate::{db::DefDatabase, path::ModPath, DefWithBodyId};
12
13pub fn validate_body(db: &dyn DefDatabase, owner: DefWithBodyId, sink: &mut DiagnosticSink<'_>) {
14 let source_map = db.body_with_source_map(owner).1;
15 source_map.add_diagnostics(db, sink);
16}
17
18// Diagnostic: unresolved-module
19//
20// This diagnostic is triggered if rust-analyzer is unable to discover referred module.
21#[derive(Debug)]
22pub struct UnresolvedModule {
23 pub file: HirFileId,
24 pub decl: AstPtr<ast::Module>,
25 pub candidate: String,
26}
27
28impl Diagnostic for UnresolvedModule {
29 fn code(&self) -> DiagnosticCode {
30 DiagnosticCode("unresolved-module")
31 }
32 fn message(&self) -> String {
33 "unresolved module".to_string()
34 }
35 fn display_source(&self) -> InFile<SyntaxNodePtr> {
36 InFile::new(self.file, self.decl.clone().into())
37 }
38 fn as_any(&self) -> &(dyn Any + Send + 'static) {
39 self
40 }
41}
42
43// Diagnostic: unresolved-extern-crate
44//
45// This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate.
46#[derive(Debug)]
47pub struct UnresolvedExternCrate {
48 pub file: HirFileId,
49 pub item: AstPtr<ast::ExternCrate>,
50}
51
52impl Diagnostic for UnresolvedExternCrate {
53 fn code(&self) -> DiagnosticCode {
54 DiagnosticCode("unresolved-extern-crate")
55 }
56 fn message(&self) -> String {
57 "unresolved extern crate".to_string()
58 }
59 fn display_source(&self) -> InFile<SyntaxNodePtr> {
60 InFile::new(self.file, self.item.clone().into())
61 }
62 fn as_any(&self) -> &(dyn Any + Send + 'static) {
63 self
64 }
65}
66
67// Diagnostic: unresolved-import
68//
69// This diagnostic is triggered if rust-analyzer is unable to discover imported module.
70#[derive(Debug)]
71pub struct UnresolvedImport {
72 pub file: HirFileId,
73 pub node: AstPtr<ast::UseTree>,
74}
75
76impl Diagnostic for UnresolvedImport {
77 fn code(&self) -> DiagnosticCode {
78 DiagnosticCode("unresolved-import")
79 }
80 fn message(&self) -> String {
81 "unresolved import".to_string()
82 }
83 fn display_source(&self) -> InFile<SyntaxNodePtr> {
84 InFile::new(self.file, self.node.clone().into())
85 }
86 fn as_any(&self) -> &(dyn Any + Send + 'static) {
87 self
88 }
89 fn is_experimental(&self) -> bool {
90 // This currently results in false positives in the following cases:
91 // - `cfg_if!`-generated code in libstd (we don't load the sysroot correctly)
92 // - `core::arch` (we don't handle `#[path = "../<path>"]` correctly)
93 // - proc macros and/or proc macro generated code
94 true
95 }
96}
97
98// Diagnostic: unresolved-macro-call
99//
100// This diagnostic is triggered if rust-analyzer is unable to resolve the path to a
101// macro in a macro invocation.
102#[derive(Debug, Clone, Eq, PartialEq)]
103pub struct UnresolvedMacroCall {
104 pub file: HirFileId,
105 pub node: AstPtr<ast::MacroCall>,
106 pub path: ModPath,
107}
108
109impl Diagnostic for UnresolvedMacroCall {
110 fn code(&self) -> DiagnosticCode {
111 DiagnosticCode("unresolved-macro-call")
112 }
113 fn message(&self) -> String {
114 format!("unresolved macro `{}!`", self.path)
115 }
116 fn display_source(&self) -> InFile<SyntaxNodePtr> {
117 InFile::new(self.file, self.node.clone().into())
118 }
119 fn as_any(&self) -> &(dyn Any + Send + 'static) {
120 self
121 }
122 fn is_experimental(&self) -> bool {
123 true
124 }
125}
126
127// Diagnostic: inactive-code
128//
129// This diagnostic is shown for code with inactive `#[cfg]` attributes.
130#[derive(Debug, Clone, Eq, PartialEq)]
131pub struct InactiveCode {
132 pub file: HirFileId,
133 pub node: SyntaxNodePtr,
134 pub cfg: CfgExpr,
135 pub opts: CfgOptions,
136}
137
138impl Diagnostic for InactiveCode {
139 fn code(&self) -> DiagnosticCode {
140 DiagnosticCode("inactive-code")
141 }
142 fn message(&self) -> String {
143 let inactive = DnfExpr::new(self.cfg.clone()).why_inactive(&self.opts);
144 let mut buf = "code is inactive due to #[cfg] directives".to_string();
145
146 if let Some(inactive) = inactive {
147 format_to!(buf, ": {}", inactive);
148 }
149
150 buf
151 }
152 fn display_source(&self) -> InFile<SyntaxNodePtr> {
153 InFile::new(self.file, self.node.clone())
154 }
155 fn as_any(&self) -> &(dyn Any + Send + 'static) {
156 self
157 }
158}
159
160// Diagnostic: unresolved-proc-macro
161//
162// This diagnostic is shown when a procedural macro can not be found. This usually means that
163// procedural macro support is simply disabled (and hence is only a weak hint instead of an error),
164// but can also indicate project setup problems.
165//
166// If you are seeing a lot of "proc macro not expanded" warnings, you can add this option to the
167// `rust-analyzer.diagnostics.disabled` list to prevent them from showing. Alternatively you can
168// enable support for procedural macros (see `rust-analyzer.procMacro.enable`).
169#[derive(Debug, Clone, Eq, PartialEq)]
170pub struct UnresolvedProcMacro {
171 pub file: HirFileId,
172 pub node: SyntaxNodePtr,
173 /// If the diagnostic can be pinpointed more accurately than via `node`, this is the `TextRange`
174 /// to use instead.
175 pub precise_location: Option<TextRange>,
176 pub macro_name: Option<String>,
177}
178
179impl Diagnostic for UnresolvedProcMacro {
180 fn code(&self) -> DiagnosticCode {
181 DiagnosticCode("unresolved-proc-macro")
182 }
183
184 fn message(&self) -> String {
185 match &self.macro_name {
186 Some(name) => format!("proc macro `{}` not expanded", name),
187 None => "proc macro not expanded".to_string(),
188 }
189 }
190
191 fn display_source(&self) -> InFile<SyntaxNodePtr> {
192 InFile::new(self.file, self.node.clone())
193 }
194
195 fn as_any(&self) -> &(dyn Any + Send + 'static) {
196 self
197 }
198}
199
200// Diagnostic: macro-error
201//
202// This diagnostic is shown for macro expansion errors.
203#[derive(Debug, Clone, Eq, PartialEq)]
204pub struct MacroError {
205 pub file: HirFileId,
206 pub node: SyntaxNodePtr,
207 pub message: String,
208}
209
210impl Diagnostic for MacroError {
211 fn code(&self) -> DiagnosticCode {
212 DiagnosticCode("macro-error")
213 }
214 fn message(&self) -> String {
215 self.message.clone()
216 }
217 fn display_source(&self) -> InFile<SyntaxNodePtr> {
218 InFile::new(self.file, self.node.clone())
219 }
220 fn as_any(&self) -> &(dyn Any + Send + 'static) {
221 self
222 }
223 fn is_experimental(&self) -> bool {
224 // Newly added and not very well-tested, might contain false positives.
225 true
226 }
227}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 17:23:46 +0100