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-rw-r--r--crates/hir/src/diagnostics.rs95
1 files changed, 4 insertions, 91 deletions
diff --git a/crates/hir/src/diagnostics.rs b/crates/hir/src/diagnostics.rs
index 5e2f94698..158626dc0 100644
--- a/crates/hir/src/diagnostics.rs
+++ b/crates/hir/src/diagnostics.rs
@@ -6,6 +6,7 @@
6use std::any::Any; 6use std::any::Any;
7 7
8use cfg::{CfgExpr, CfgOptions, DnfExpr}; 8use cfg::{CfgExpr, CfgOptions, DnfExpr};
9use either::Either;
9use hir_def::path::ModPath; 10use hir_def::path::ModPath;
10use hir_expand::{name::Name, HirFileId, InFile}; 11use hir_expand::{name::Name, HirFileId, InFile};
11use stdx::format_to; 12use stdx::format_to;
@@ -16,7 +17,7 @@ pub use crate::diagnostics_sink::{
16}; 17};
17 18
18macro_rules! diagnostics { 19macro_rules! diagnostics {
19 ($($diag:ident)*) => { 20 ($($diag:ident),*) => {
20 pub enum AnyDiagnostic {$( 21 pub enum AnyDiagnostic {$(
21 $diag(Box<$diag>), 22 $diag(Box<$diag>),
22 )*} 23 )*}
@@ -31,7 +32,7 @@ macro_rules! diagnostics {
31 }; 32 };
32} 33}
33 34
34diagnostics![UnresolvedModule]; 35diagnostics![UnresolvedModule, MissingFields];
35 36
36#[derive(Debug)] 37#[derive(Debug)]
37pub struct UnresolvedModule { 38pub struct UnresolvedModule {
@@ -321,102 +322,14 @@ impl Diagnostic for MissingUnsafe {
321 } 322 }
322} 323}
323 324
324// Diagnostic: missing-structure-fields
325//
326// This diagnostic is triggered if record lacks some fields that exist in the corresponding structure.
327//
328// Example:
329//
330// ```rust
331// struct A { a: u8, b: u8 }
332//
333// let a = A { a: 10 };
334// ```
335#[derive(Debug)] 325#[derive(Debug)]
336pub struct MissingFields { 326pub struct MissingFields {
337 pub file: HirFileId, 327 pub file: HirFileId,
338 pub field_list_parent: AstPtr<ast::RecordExpr>, 328 pub field_list_parent: Either<AstPtr<ast::RecordExpr>, AstPtr<ast::RecordPat>>,
339 pub field_list_parent_path: Option<AstPtr<ast::Path>>,
340 pub missed_fields: Vec<Name>,
341}
342
343impl Diagnostic for MissingFields {
344 fn code(&self) -> DiagnosticCode {
345 DiagnosticCode("missing-structure-fields")
346 }
347 fn message(&self) -> String {
348 let mut buf = String::from("Missing structure fields:\n");
349 for field in &self.missed_fields {
350 format_to!(buf, "- {}\n", field);
351 }
352 buf
353 }
354
355 fn display_source(&self) -> InFile<SyntaxNodePtr> {
356 InFile {
357 file_id: self.file,
358 value: self
359 .field_list_parent_path
360 .clone()
361 .map(SyntaxNodePtr::from)
362 .unwrap_or_else(|| self.field_list_parent.clone().into()),
363 }
364 }
365
366 fn as_any(&self) -> &(dyn Any + Send + 'static) {
367 self
368 }
369}
370
371// Diagnostic: missing-pat-fields
372//
373// This diagnostic is triggered if pattern lacks some fields that exist in the corresponding structure.
374//
375// Example:
376//
377// ```rust
378// struct A { a: u8, b: u8 }
379//
380// let a = A { a: 10, b: 20 };
381//
382// if let A { a } = a {
383// // ...
384// }
385// ```
386#[derive(Debug)]
387pub struct MissingPatFields {
388 pub file: HirFileId,
389 pub field_list_parent: AstPtr<ast::RecordPat>,
390 pub field_list_parent_path: Option<AstPtr<ast::Path>>, 329 pub field_list_parent_path: Option<AstPtr<ast::Path>>,
391 pub missed_fields: Vec<Name>, 330 pub missed_fields: Vec<Name>,
392} 331}
393 332
394impl Diagnostic for MissingPatFields {
395 fn code(&self) -> DiagnosticCode {
396 DiagnosticCode("missing-pat-fields")
397 }
398 fn message(&self) -> String {
399 let mut buf = String::from("Missing structure fields:\n");
400 for field in &self.missed_fields {
401 format_to!(buf, "- {}\n", field);
402 }
403 buf
404 }
405 fn display_source(&self) -> InFile<SyntaxNodePtr> {
406 InFile {
407 file_id: self.file,
408 value: self
409 .field_list_parent_path
410 .clone()
411 .map(SyntaxNodePtr::from)
412 .unwrap_or_else(|| self.field_list_parent.clone().into()),
413 }
414 }
415 fn as_any(&self) -> &(dyn Any + Send + 'static) {
416 self
417 }
418}
419
420// Diagnostic: replace-filter-map-next-with-find-map 333// Diagnostic: replace-filter-map-next-with-find-map
421// 334//
422// This diagnostic is triggered when `.filter_map(..).next()` is used, rather than the more concise `.find_map(..)`. 335// This diagnostic is triggered when `.filter_map(..).next()` is used, rather than the more concise `.find_map(..)`.