6 files changed, 708 insertions, 155 deletions

diff --git a/crates/ide/src/diagnostics/break_outside_of_loop.rs b/crates/ide/src/diagnostics/break_outside_of_loop.rs
new file mode 100644
index 000000000..80e68f3cc
--- /dev/null
+++ b/crates/ide/src/diagnostics/break_outside_of_loop.rs
@@ -0,0 +1,30 @@
+use crate::diagnostics::{Diagnostic, DiagnosticsContext};
+
+// Diagnostic: break-outside-of-loop
+//
+// This diagnostic is triggered if the `break` keyword is used outside of a loop.
+pub(super) fn break_outside_of_loop(
+    ctx: &DiagnosticsContext<'_>,
+    d: &hir::BreakOutsideOfLoop,
+) -> Diagnostic {
+    Diagnostic::new(
+        "break-outside-of-loop",
+        "break outside of loop",
+        ctx.sema.diagnostics_display_range(d.expr.clone().map(|it| it.into())).range,
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::diagnostics::tests::check_diagnostics;
+
+    #[test]
+    fn break_outside_of_loop() {
+        check_diagnostics(
+            r#"
+fn foo() { break; }
+         //^^^^^ break outside of loop
+"#,
+        );
+    }
+}
diff --git a/crates/ide/src/diagnostics/fixes/create_field.rs b/crates/ide/src/diagnostics/fixes/create_field.rs
index f6e45967a..8b1378917 100644
--- a/crates/ide/src/diagnostics/fixes/create_field.rs
+++ b/crates/ide/src/diagnostics/fixes/create_field.rs
@@ -1,156 +1 @@
-use hir::{db::AstDatabase, diagnostics::NoSuchField, HasSource, HirDisplay, Semantics};
-use ide_db::{base_db::FileId, source_change::SourceChange, RootDatabase};
-use syntax::{
-    ast::{self, edit::IndentLevel, make},
-    AstNode,
-};
-use text_edit::TextEdit;
 
-use crate::{
-    diagnostics::{fix, DiagnosticWithFixes},
-    Assist, AssistResolveStrategy,
-};
-impl DiagnosticWithFixes for NoSuchField {
-    fn fixes(
-        &self,
-        sema: &Semantics<RootDatabase>,
-        _resolve: &AssistResolveStrategy,
-    ) -> Option<Vec<Assist>> {
-        let root = sema.db.parse_or_expand(self.file)?;
-        missing_record_expr_field_fixes(
-            sema,
-            self.file.original_file(sema.db),
-            &self.field.to_node(&root),
-        )
-    }
-}
-
-fn missing_record_expr_field_fixes(
-    sema: &Semantics<RootDatabase>,
-    usage_file_id: FileId,
-    record_expr_field: &ast::RecordExprField,
-) -> Option<Vec<Assist>> {
-    let record_lit = ast::RecordExpr::cast(record_expr_field.syntax().parent()?.parent()?)?;
-    let def_id = sema.resolve_variant(record_lit)?;
-    let module;
-    let def_file_id;
-    let record_fields = match def_id {
-        hir::VariantDef::Struct(s) => {
-            module = s.module(sema.db);
-            let source = s.source(sema.db)?;
-            def_file_id = source.file_id;
-            let fields = source.value.field_list()?;
-            record_field_list(fields)?
-        }
-        hir::VariantDef::Union(u) => {
-            module = u.module(sema.db);
-            let source = u.source(sema.db)?;
-            def_file_id = source.file_id;
-            source.value.record_field_list()?
-        }
-        hir::VariantDef::Variant(e) => {
-            module = e.module(sema.db);
-            let source = e.source(sema.db)?;
-            def_file_id = source.file_id;
-            let fields = source.value.field_list()?;
-            record_field_list(fields)?
-        }
-    };
-    let def_file_id = def_file_id.original_file(sema.db);
-
-    let new_field_type = sema.type_of_expr(&record_expr_field.expr()?)?;
-    if new_field_type.is_unknown() {
-        return None;
-    }
-    let new_field = make::record_field(
-        None,
-        make::name(&record_expr_field.field_name()?.text()),
-        make::ty(&new_field_type.display_source_code(sema.db, module.into()).ok()?),
-    );
-
-    let last_field = record_fields.fields().last()?;
-    let last_field_syntax = last_field.syntax();
-    let indent = IndentLevel::from_node(last_field_syntax);
-
-    let mut new_field = new_field.to_string();
-    if usage_file_id != def_file_id {
-        new_field = format!("pub(crate) {}", new_field);
-    }
-    new_field = format!("\n{}{}", indent, new_field);
-
-    let needs_comma = !last_field_syntax.to_string().ends_with(',');
-    if needs_comma {
-        new_field = format!(",{}", new_field);
-    }
-
-    let source_change = SourceChange::from_text_edit(
-        def_file_id,
-        TextEdit::insert(last_field_syntax.text_range().end(), new_field),
-    );
-
-    return Some(vec![fix(
-        "create_field",
-        "Create field",
-        source_change,
-        record_expr_field.syntax().text_range(),
-    )]);
-
-    fn record_field_list(field_def_list: ast::FieldList) -> Option<ast::RecordFieldList> {
-        match field_def_list {
-            ast::FieldList::RecordFieldList(it) => Some(it),
-            ast::FieldList::TupleFieldList(_) => None,
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::diagnostics::tests::check_fix;
-
-    #[test]
-    fn test_add_field_from_usage() {
-        check_fix(
-            r"
-fn main() {
-    Foo { bar: 3, baz$0: false};
-}
-struct Foo {
-    bar: i32
-}
-",
-            r"
-fn main() {
-    Foo { bar: 3, baz: false};
-}
-struct Foo {
-    bar: i32,
-    baz: bool
-}
-",
-        )
-    }
-
-    #[test]
-    fn test_add_field_in_other_file_from_usage() {
-        check_fix(
-            r#"
-//- /main.rs
-mod foo;
-
-fn main() {
-    foo::Foo { bar: 3, $0baz: false};
-}
-//- /foo.rs
-struct Foo {
-    bar: i32
-}
-"#,
-            r#"
-struct Foo {
-    bar: i32,
-    pub(crate) baz: bool
-}
-"#,
-        )
-    }
-}
diff --git a/crates/ide/src/diagnostics/mismatched_arg_count.rs b/crates/ide/src/diagnostics/mismatched_arg_count.rs
new file mode 100644
index 000000000..08e1cfa5f
--- /dev/null
+++ b/crates/ide/src/diagnostics/mismatched_arg_count.rs
@@ -0,0 +1,272 @@
+use crate::diagnostics::{Diagnostic, DiagnosticsContext};
+
+// Diagnostic: mismatched-arg-count
+//
+// This diagnostic is triggered if a function is invoked with an incorrect amount of arguments.
+pub(super) fn mismatched_arg_count(
+    ctx: &DiagnosticsContext<'_>,
+    d: &hir::MismatchedArgCount,
+) -> Diagnostic {
+    let s = if d.expected == 1 { "" } else { "s" };
+    let message = format!("expected {} argument{}, found {}", d.expected, s, d.found);
+    Diagnostic::new(
+        "mismatched-arg-count",
+        message,
+        ctx.sema.diagnostics_display_range(d.call_expr.clone().map(|it| it.into())).range,
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::diagnostics::tests::check_diagnostics;
+
+    #[test]
+    fn simple_free_fn_zero() {
+        check_diagnostics(
+            r#"
+fn zero() {}
+fn f() { zero(1); }
+       //^^^^^^^ expected 0 arguments, found 1
+"#,
+        );
+
+        check_diagnostics(
+            r#"
+fn zero() {}
+fn f() { zero(); }
+"#,
+        );
+    }
+
+    #[test]
+    fn simple_free_fn_one() {
+        check_diagnostics(
+            r#"
+fn one(arg: u8) {}
+fn f() { one(); }
+       //^^^^^ expected 1 argument, found 0
+"#,
+        );
+
+        check_diagnostics(
+            r#"
+fn one(arg: u8) {}
+fn f() { one(1); }
+"#,
+        );
+    }
+
+    #[test]
+    fn method_as_fn() {
+        check_diagnostics(
+            r#"
+struct S;
+impl S { fn method(&self) {} }
+
+fn f() {
+    S::method();
+} //^^^^^^^^^^^ expected 1 argument, found 0
+"#,
+        );
+
+        check_diagnostics(
+            r#"
+struct S;
+impl S { fn method(&self) {} }
+
+fn f() {
+    S::method(&S);
+    S.method();
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn method_with_arg() {
+        check_diagnostics(
+            r#"
+struct S;
+impl S { fn method(&self, arg: u8) {} }
+
+            fn f() {
+                S.method();
+            } //^^^^^^^^^^ expected 1 argument, found 0
+            "#,
+        );
+
+        check_diagnostics(
+            r#"
+struct S;
+impl S { fn method(&self, arg: u8) {} }
+
+fn f() {
+    S::method(&S, 0);
+    S.method(1);
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn method_unknown_receiver() {
+        // note: this is incorrect code, so there might be errors on this in the
+        // future, but we shouldn't emit an argument count diagnostic here
+        check_diagnostics(
+            r#"
+trait Foo { fn method(&self, arg: usize) {} }
+
+fn f() {
+    let x;
+    x.method();
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn tuple_struct() {
+        check_diagnostics(
+            r#"
+struct Tup(u8, u16);
+fn f() {
+    Tup(0);
+} //^^^^^^ expected 2 arguments, found 1
+"#,
+        )
+    }
+
+    #[test]
+    fn enum_variant() {
+        check_diagnostics(
+            r#"
+enum En { Variant(u8, u16), }
+fn f() {
+    En::Variant(0);
+} //^^^^^^^^^^^^^^ expected 2 arguments, found 1
+"#,
+        )
+    }
+
+    #[test]
+    fn enum_variant_type_macro() {
+        check_diagnostics(
+            r#"
+macro_rules! Type {
+    () => { u32 };
+}
+enum Foo {
+    Bar(Type![])
+}
+impl Foo {
+    fn new() {
+        Foo::Bar(0);
+        Foo::Bar(0, 1);
+      //^^^^^^^^^^^^^^ expected 1 argument, found 2
+        Foo::Bar();
+      //^^^^^^^^^^ expected 1 argument, found 0
+    }
+}
+        "#,
+        );
+    }
+
+    #[test]
+    fn varargs() {
+        check_diagnostics(
+            r#"
+extern "C" {
+    fn fixed(fixed: u8);
+    fn varargs(fixed: u8, ...);
+    fn varargs2(...);
+}
+
+fn f() {
+    unsafe {
+        fixed(0);
+        fixed(0, 1);
+      //^^^^^^^^^^^ expected 1 argument, found 2
+        varargs(0);
+        varargs(0, 1);
+        varargs2();
+        varargs2(0);
+        varargs2(0, 1);
+    }
+}
+        "#,
+        )
+    }
+
+    #[test]
+    fn arg_count_lambda() {
+        check_diagnostics(
+            r#"
+fn main() {
+    let f = |()| ();
+    f();
+  //^^^ expected 1 argument, found 0
+    f(());
+    f((), ());
+  //^^^^^^^^^ expected 1 argument, found 2
+}
+"#,
+        )
+    }
+
+    #[test]
+    fn cfgd_out_call_arguments() {
+        check_diagnostics(
+            r#"
+struct C(#[cfg(FALSE)] ());
+impl C {
+    fn new() -> Self {
+        Self(
+            #[cfg(FALSE)]
+            (),
+        )
+    }
+
+    fn method(&self) {}
+}
+
+fn main() {
+    C::new().method(#[cfg(FALSE)] 0);
+}
+            "#,
+        );
+    }
+
+    #[test]
+    fn cfgd_out_fn_params() {
+        check_diagnostics(
+            r#"
+fn foo(#[cfg(NEVER)] x: ()) {}
+
+struct S;
+
+impl S {
+    fn method(#[cfg(NEVER)] self) {}
+    fn method2(#[cfg(NEVER)] self, arg: u8) {}
+    fn method3(self, #[cfg(NEVER)] arg: u8) {}
+}
+
+extern "C" {
+    fn fixed(fixed: u8, #[cfg(NEVER)] ...);
+    fn varargs(#[cfg(not(NEVER))] ...);
+}
+
+fn main() {
+    foo();
+    S::method();
+    S::method2(0);
+    S::method3(S);
+    S.method3();
+    unsafe {
+        fixed(0);
+        varargs(1, 2, 3);
+    }
+}
+            "#,
+        )
+    }
+}
diff --git a/crates/ide/src/diagnostics/missing_unsafe.rs b/crates/ide/src/diagnostics/missing_unsafe.rs
new file mode 100644
index 000000000..5c47e8d0a
--- /dev/null
+++ b/crates/ide/src/diagnostics/missing_unsafe.rs
@@ -0,0 +1,101 @@
+use crate::diagnostics::{Diagnostic, DiagnosticsContext};
+
+// Diagnostic: missing-unsafe
+//
+// This diagnostic is triggered if an operation marked as `unsafe` is used outside of an `unsafe` function or block.
+pub(super) fn missing_unsafe(ctx: &DiagnosticsContext<'_>, d: &hir::MissingUnsafe) -> Diagnostic {
+    Diagnostic::new(
+        "missing-unsafe",
+        "this operation is unsafe and requires an unsafe function or block",
+        ctx.sema.diagnostics_display_range(d.expr.clone().map(|it| it.into())).range,
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::diagnostics::tests::check_diagnostics;
+
+    #[test]
+    fn missing_unsafe_diagnostic_with_raw_ptr() {
+        check_diagnostics(
+            r#"
+fn main() {
+    let x = &5 as *const usize;
+    unsafe { let y = *x; }
+    let z = *x;
+}         //^^ this operation is unsafe and requires an unsafe function or block
+"#,
+        )
+    }
+
+    #[test]
+    fn missing_unsafe_diagnostic_with_unsafe_call() {
+        check_diagnostics(
+            r#"
+struct HasUnsafe;
+
+impl HasUnsafe {
+    unsafe fn unsafe_fn(&self) {
+        let x = &5 as *const usize;
+        let y = *x;
+    }
+}
+
+unsafe fn unsafe_fn() {
+    let x = &5 as *const usize;
+    let y = *x;
+}
+
+fn main() {
+    unsafe_fn();
+  //^^^^^^^^^^^ this operation is unsafe and requires an unsafe function or block
+    HasUnsafe.unsafe_fn();
+  //^^^^^^^^^^^^^^^^^^^^^ this operation is unsafe and requires an unsafe function or block
+    unsafe {
+        unsafe_fn();
+        HasUnsafe.unsafe_fn();
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn missing_unsafe_diagnostic_with_static_mut() {
+        check_diagnostics(
+            r#"
+struct Ty {
+    a: u8,
+}
+
+static mut STATIC_MUT: Ty = Ty { a: 0 };
+
+fn main() {
+    let x = STATIC_MUT.a;
+          //^^^^^^^^^^ this operation is unsafe and requires an unsafe function or block
+    unsafe {
+        let x = STATIC_MUT.a;
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn no_missing_unsafe_diagnostic_with_safe_intrinsic() {
+        check_diagnostics(
+            r#"
+extern "rust-intrinsic" {
+    pub fn bitreverse(x: u32) -> u32; // Safe intrinsic
+    pub fn floorf32(x: f32) -> f32; // Unsafe intrinsic
+}
+
+fn main() {
+    let _ = bitreverse(12);
+    let _ = floorf32(12.0);
+          //^^^^^^^^^^^^^^ this operation is unsafe and requires an unsafe function or block
+}
+"#,
+        );
+    }
+}
diff --git a/crates/ide/src/diagnostics/no_such_field.rs b/crates/ide/src/diagnostics/no_such_field.rs
new file mode 100644
index 000000000..61962de28
--- /dev/null
+++ b/crates/ide/src/diagnostics/no_such_field.rs
@@ -0,0 +1,286 @@
+use hir::{db::AstDatabase, HasSource, HirDisplay, Semantics};
+use ide_db::{base_db::FileId, source_change::SourceChange, RootDatabase};
+use syntax::{
+    ast::{self, edit::IndentLevel, make},
+    AstNode,
+};
+use text_edit::TextEdit;
+
+use crate::{
+    diagnostics::{fix, Diagnostic, DiagnosticsContext},
+    Assist,
+};
+
+// Diagnostic: no-such-field
+//
+// This diagnostic is triggered if created structure does not have field provided in record.
+pub(super) fn no_such_field(ctx: &DiagnosticsContext<'_>, d: &hir::NoSuchField) -> Diagnostic {
+    Diagnostic::new(
+        "no-such-field",
+        "no such field".to_string(),
+        ctx.sema.diagnostics_display_range(d.field.clone().map(|it| it.into())).range,
+    )
+    .with_fixes(fixes(ctx, d))
+}
+
+fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::NoSuchField) -> Option<Vec<Assist>> {
+    let root = ctx.sema.db.parse_or_expand(d.field.file_id)?;
+    missing_record_expr_field_fixes(
+        &ctx.sema,
+        d.field.file_id.original_file(ctx.sema.db),
+        &d.field.value.to_node(&root),
+    )
+}
+
+fn missing_record_expr_field_fixes(
+    sema: &Semantics<RootDatabase>,
+    usage_file_id: FileId,
+    record_expr_field: &ast::RecordExprField,
+) -> Option<Vec<Assist>> {
+    let record_lit = ast::RecordExpr::cast(record_expr_field.syntax().parent()?.parent()?)?;
+    let def_id = sema.resolve_variant(record_lit)?;
+    let module;
+    let def_file_id;
+    let record_fields = match def_id {
+        hir::VariantDef::Struct(s) => {
+            module = s.module(sema.db);
+            let source = s.source(sema.db)?;
+            def_file_id = source.file_id;
+            let fields = source.value.field_list()?;
+            record_field_list(fields)?
+        }
+        hir::VariantDef::Union(u) => {
+            module = u.module(sema.db);
+            let source = u.source(sema.db)?;
+            def_file_id = source.file_id;
+            source.value.record_field_list()?
+        }
+        hir::VariantDef::Variant(e) => {
+            module = e.module(sema.db);
+            let source = e.source(sema.db)?;
+            def_file_id = source.file_id;
+            let fields = source.value.field_list()?;
+            record_field_list(fields)?
+        }
+    };
+    let def_file_id = def_file_id.original_file(sema.db);
+
+    let new_field_type = sema.type_of_expr(&record_expr_field.expr()?)?;
+    if new_field_type.is_unknown() {
+        return None;
+    }
+    let new_field = make::record_field(
+        None,
+        make::name(&record_expr_field.field_name()?.text()),
+        make::ty(&new_field_type.display_source_code(sema.db, module.into()).ok()?),
+    );
+
+    let last_field = record_fields.fields().last()?;
+    let last_field_syntax = last_field.syntax();
+    let indent = IndentLevel::from_node(last_field_syntax);
+
+    let mut new_field = new_field.to_string();
+    if usage_file_id != def_file_id {
+        new_field = format!("pub(crate) {}", new_field);
+    }
+    new_field = format!("\n{}{}", indent, new_field);
+
+    let needs_comma = !last_field_syntax.to_string().ends_with(',');
+    if needs_comma {
+        new_field = format!(",{}", new_field);
+    }
+
+    let source_change = SourceChange::from_text_edit(
+        def_file_id,
+        TextEdit::insert(last_field_syntax.text_range().end(), new_field),
+    );
+
+    return Some(vec![fix(
+        "create_field",
+        "Create field",
+        source_change,
+        record_expr_field.syntax().text_range(),
+    )]);
+
+    fn record_field_list(field_def_list: ast::FieldList) -> Option<ast::RecordFieldList> {
+        match field_def_list {
+            ast::FieldList::RecordFieldList(it) => Some(it),
+            ast::FieldList::TupleFieldList(_) => None,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::diagnostics::tests::{check_diagnostics, check_fix};
+
+    #[test]
+    fn no_such_field_diagnostics() {
+        check_diagnostics(
+            r#"
+struct S { foo: i32, bar: () }
+impl S {
+    fn new() -> S {
+        S {
+      //^ Missing structure fields:
+      //|    - bar
+            foo: 92,
+            baz: 62,
+          //^^^^^^^ no such field
+        }
+    }
+}
+"#,
+        );
+    }
+    #[test]
+    fn no_such_field_with_feature_flag_diagnostics() {
+        check_diagnostics(
+            r#"
+//- /lib.rs crate:foo cfg:feature=foo
+struct MyStruct {
+    my_val: usize,
+    #[cfg(feature = "foo")]
+    bar: bool,
+}
+
+impl MyStruct {
+    #[cfg(feature = "foo")]
+    pub(crate) fn new(my_val: usize, bar: bool) -> Self {
+        Self { my_val, bar }
+    }
+    #[cfg(not(feature = "foo"))]
+    pub(crate) fn new(my_val: usize, _bar: bool) -> Self {
+        Self { my_val }
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn no_such_field_enum_with_feature_flag_diagnostics() {
+        check_diagnostics(
+            r#"
+//- /lib.rs crate:foo cfg:feature=foo
+enum Foo {
+    #[cfg(not(feature = "foo"))]
+    Buz,
+    #[cfg(feature = "foo")]
+    Bar,
+    Baz
+}
+
+fn test_fn(f: Foo) {
+    match f {
+        Foo::Bar => {},
+        Foo::Baz => {},
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn no_such_field_with_feature_flag_diagnostics_on_struct_lit() {
+        check_diagnostics(
+            r#"
+//- /lib.rs crate:foo cfg:feature=foo
+struct S {
+    #[cfg(feature = "foo")]
+    foo: u32,
+    #[cfg(not(feature = "foo"))]
+    bar: u32,
+}
+
+impl S {
+    #[cfg(feature = "foo")]
+    fn new(foo: u32) -> Self {
+        Self { foo }
+    }
+    #[cfg(not(feature = "foo"))]
+    fn new(bar: u32) -> Self {
+        Self { bar }
+    }
+    fn new2(bar: u32) -> Self {
+        #[cfg(feature = "foo")]
+        { Self { foo: bar } }
+        #[cfg(not(feature = "foo"))]
+        { Self { bar } }
+    }
+    fn new2(val: u32) -> Self {
+        Self {
+            #[cfg(feature = "foo")]
+            foo: val,
+            #[cfg(not(feature = "foo"))]
+            bar: val,
+        }
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn no_such_field_with_type_macro() {
+        check_diagnostics(
+            r#"
+macro_rules! Type { () => { u32 }; }
+struct Foo { bar: Type![] }
+
+impl Foo {
+    fn new() -> Self {
+        Foo { bar: 0 }
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn test_add_field_from_usage() {
+        check_fix(
+            r"
+fn main() {
+    Foo { bar: 3, baz$0: false};
+}
+struct Foo {
+    bar: i32
+}
+",
+            r"
+fn main() {
+    Foo { bar: 3, baz: false};
+}
+struct Foo {
+    bar: i32,
+    baz: bool
+}
+",
+        )
+    }
+
+    #[test]
+    fn test_add_field_in_other_file_from_usage() {
+        check_fix(
+            r#"
+//- /main.rs
+mod foo;
+
+fn main() {
+    foo::Foo { bar: 3, $0baz: false};
+}
+//- /foo.rs
+struct Foo {
+    bar: i32
+}
+"#,
+            r#"
+struct Foo {
+    bar: i32,
+    pub(crate) baz: bool
+}
+"#,
+        )
+    }
+}
diff --git a/crates/ide/src/diagnostics/unimplemented_builtin_macro.rs b/crates/ide/src/diagnostics/unimplemented_builtin_macro.rs
new file mode 100644
index 000000000..09faa3bbc
--- /dev/null
+++ b/crates/ide/src/diagnostics/unimplemented_builtin_macro.rs
@@ -0,0 +1,19 @@
+use crate::{
+    diagnostics::{Diagnostic, DiagnosticsContext},
+    Severity,
+};
+
+// Diagnostic: unimplemented-builtin-macro
+//
+// This diagnostic is shown for builtin macros which are not yet implemented by rust-analyzer
+pub(super) fn unimplemented_builtin_macro(
+    ctx: &DiagnosticsContext<'_>,
+    d: &hir::UnimplementedBuiltinMacro,
+) -> Diagnostic {
+    Diagnostic::new(
+        "unimplemented-builtin-macro",
+        "unimplemented built-in macro".to_string(),
+        ctx.sema.diagnostics_display_range(d.node.clone()).range,
+    )
+    .severity(Severity::WeakWarning)
+}