Merge #9252

9252: internal: refactor mismatched args count diagnostic r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>

Author: bors[bot]

crates/hir/src/diagnostics.rs

@@ -32,14 +32,19 @@ macro_rules! diagnostics {
 }
 
 diagnostics![
-    UnresolvedModule,
+    BreakOutsideOfLoop,
+    InactiveCode,
+    MacroError,
+    MismatchedArgCount,
+    MissingFields,
+    MissingUnsafe,
+    NoSuchField,
+    UnimplementedBuiltinMacro,
     UnresolvedExternCrate,
     UnresolvedImport,
     UnresolvedMacroCall,
+    UnresolvedModule,
     UnresolvedProcMacro,
-    MacroError,
-    MissingFields,
-    InactiveCode,
 ];
 
 #[derive(Debug)]
@@ -88,101 +93,22 @@ pub struct MacroError {
 
 #[derive(Debug)]
 pub struct UnimplementedBuiltinMacro {
-    pub file: HirFileId,
-    pub node: SyntaxNodePtr,
-}
-
-impl Diagnostic for UnimplementedBuiltinMacro {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("unimplemented-builtin-macro")
-    }
-
-    fn message(&self) -> String {
-        "unimplemented built-in macro".to_string()
-    }
-
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile::new(self.file, self.node.clone())
-    }
-
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
+    pub node: InFile<SyntaxNodePtr>,
 }
 
-// Diagnostic: no-such-field
-//
-// This diagnostic is triggered if created structure does not have field provided in record.
 #[derive(Debug)]
 pub struct NoSuchField {
-    pub file: HirFileId,
-    pub field: AstPtr<ast::RecordExprField>,
+    pub field: InFile<AstPtr<ast::RecordExprField>>,
 }
 
-impl Diagnostic for NoSuchField {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("no-such-field")
-    }
-
-    fn message(&self) -> String {
-        "no such field".to_string()
-    }
-
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile::new(self.file, self.field.clone().into())
-    }
-
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
-}
-
-// Diagnostic: break-outside-of-loop
-//
-// This diagnostic is triggered if the `break` keyword is used outside of a loop.
 #[derive(Debug)]
 pub struct BreakOutsideOfLoop {
-    pub file: HirFileId,
-    pub expr: AstPtr<ast::Expr>,
+    pub expr: InFile<AstPtr<ast::Expr>>,
 }
 
-impl Diagnostic for BreakOutsideOfLoop {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("break-outside-of-loop")
-    }
-    fn message(&self) -> String {
-        "break outside of loop".to_string()
-    }
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile { file_id: self.file, value: self.expr.clone().into() }
-    }
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
-}
-
-// Diagnostic: missing-unsafe
-//
-// This diagnostic is triggered if an operation marked as `unsafe` is used outside of an `unsafe` function or block.
 #[derive(Debug)]
 pub struct MissingUnsafe {
-    pub file: HirFileId,
-    pub expr: AstPtr<ast::Expr>,
-}
-
-impl Diagnostic for MissingUnsafe {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("missing-unsafe")
-    }
-    fn message(&self) -> String {
-        format!("This operation is unsafe and requires an unsafe function or block")
-    }
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile { file_id: self.file, value: self.expr.clone().into() }
-    }
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
+    pub expr: InFile<AstPtr<ast::Expr>>,
 }
 
 #[derive(Debug)]
@@ -218,36 +144,13 @@ impl Diagnostic for ReplaceFilterMapNextWithFindMap {
     }
 }
 
-// Diagnostic: mismatched-arg-count
-//
-// This diagnostic is triggered if a function is invoked with an incorrect amount of arguments.
 #[derive(Debug)]
 pub struct MismatchedArgCount {
-    pub file: HirFileId,
-    pub call_expr: AstPtr<ast::Expr>,
+    pub call_expr: InFile<AstPtr<ast::Expr>>,
     pub expected: usize,
     pub found: usize,
 }
 
-impl Diagnostic for MismatchedArgCount {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("mismatched-arg-count")
-    }
-    fn message(&self) -> String {
-        let s = if self.expected == 1 { "" } else { "s" };
-        format!("Expected {} argument{}, found {}", self.expected, s, self.found)
-    }
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile { file_id: self.file, value: self.call_expr.clone().into() }
-    }
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
-    fn is_experimental(&self) -> bool {
-        true
-    }
-}
-
 #[derive(Debug)]
 pub struct RemoveThisSemicolon {
     pub file: HirFileId,

crates/hir/src/lib.rs

@@ -606,8 +606,12 @@ impl Module {
                     let node = ast.to_node(db.upcast());
                     // Must have a name, otherwise we wouldn't emit it.
                     let name = node.name().expect("unimplemented builtin macro with no name");
-                    let ptr = SyntaxNodePtr::from(AstPtr::new(&name));
-                    sink.push(UnimplementedBuiltinMacro { file: ast.file_id, node: ptr });
+                    acc.push(
+                        UnimplementedBuiltinMacro {
+                            node: ast.with_value(SyntaxNodePtr::from(AstPtr::new(&name))),
+                        }
+                        .into(),
+                    );
                 }
             }
         }
@@ -1073,22 +1077,20 @@ impl Function {
             match d {
                 hir_ty::InferenceDiagnostic::NoSuchField { expr } => {
                     let field = source_map.field_syntax(*expr);
-                    sink.push(NoSuchField { file: field.file_id, field: field.value })
+                    acc.push(NoSuchField { field }.into())
                 }
                 hir_ty::InferenceDiagnostic::BreakOutsideOfLoop { expr } => {
-                    let ptr = source_map
+                    let expr = source_map
                         .expr_syntax(*expr)
                         .expect("break outside of loop in synthetic syntax");
-                    sink.push(BreakOutsideOfLoop { file: ptr.file_id, expr: ptr.value })
+                    acc.push(BreakOutsideOfLoop { expr }.into())
                 }
             }
         }
 
         for expr in hir_ty::diagnostics::missing_unsafe(db, self.id.into()) {
             match source_map.expr_syntax(expr) {
-                Ok(in_file) => {
-                    sink.push(MissingUnsafe { file: in_file.file_id, expr: in_file.value })
-                }
+                Ok(expr) => acc.push(MissingUnsafe { expr }.into()),
                 Err(SyntheticSyntax) => {
                     // FIXME: Here and eslwhere in this file, the `expr` was
                     // desugared, report or assert that this doesn't happen.
@@ -1174,12 +1176,9 @@ impl Function {
                 }
                 BodyValidationDiagnostic::MismatchedArgCount { call_expr, expected, found } => {
                     match source_map.expr_syntax(call_expr) {
-                        Ok(source_ptr) => sink.push(MismatchedArgCount {
-                            file: source_ptr.file_id,
-                            call_expr: source_ptr.value,
-                            expected,
-                            found,
-                        }),
+                        Ok(source_ptr) => acc.push(
+                            MismatchedArgCount { call_expr: source_ptr, expected, found }.into(),
+                        ),
                         Err(SyntheticSyntax) => (),
                     }
                 }