diff options
Diffstat (limited to 'src')
26 files changed, 56 insertions, 60 deletions
diff --git a/src/librustc/mir/mod.rs b/src/librustc/mir/mod.rs index 36818020569..51718592fd9 100644 --- a/src/librustc/mir/mod.rs +++ b/src/librustc/mir/mod.rs @@ -1198,7 +1198,7 @@ impl<'tcx> TerminatorKind<'tcx> { t: BasicBlock, f: BasicBlock, ) -> TerminatorKind<'tcx> { - static BOOL_SWITCH_FALSE: &'static [u128] = &[0]; + static BOOL_SWITCH_FALSE: &[u128] = &[0]; TerminatorKind::SwitchInt { discr: cond, switch_ty: tcx.types.bool, diff --git a/src/librustc_builtin_macros/format.rs b/src/librustc_builtin_macros/format.rs index 3724a83a949..d6b8b8cafb7 100644 --- a/src/librustc_builtin_macros/format.rs +++ b/src/librustc_builtin_macros/format.rs @@ -284,7 +284,7 @@ impl<'a, 'b> Context<'a, 'b> { err.tool_only_span_suggestion( sp, &format!("use the `{}` trait", name), - fmt.to_string(), + (*fmt).to_string(), Applicability::MaybeIncorrect, ); } @@ -476,7 +476,7 @@ impl<'a, 'b> Context<'a, 'b> { match ty { Placeholder(_) => { // record every (position, type) combination only once - let ref mut seen_ty = self.arg_unique_types[arg]; + let seen_ty = &mut self.arg_unique_types[arg]; let i = seen_ty.iter().position(|x| *x == ty).unwrap_or_else(|| { let i = seen_ty.len(); seen_ty.push(ty); @@ -526,7 +526,7 @@ impl<'a, 'b> Context<'a, 'b> { // Map the arguments for i in 0..args_len { - let ref arg_types = self.arg_types[i]; + let arg_types = &self.arg_types[i]; let arg_offsets = arg_types.iter().map(|offset| sofar + *offset).collect::<Vec<_>>(); self.arg_index_map.push(arg_offsets); sofar += self.arg_unique_types[i].len(); @@ -597,7 +597,7 @@ impl<'a, 'b> Context<'a, 'b> { let arg_idx = match arg_index_consumed.get_mut(i) { None => 0, // error already emitted elsewhere Some(offset) => { - let ref idx_map = self.arg_index_map[i]; + let idx_map = &self.arg_index_map[i]; // unwrap_or branch: error already emitted elsewhere let arg_idx = *idx_map.get(*offset).unwrap_or(&0); *offset += 1; @@ -721,7 +721,7 @@ impl<'a, 'b> Context<'a, 'b> { let name = names_pos[i]; let span = self.ecx.with_def_site_ctxt(e.span); pats.push(self.ecx.pat_ident(span, name)); - for ref arg_ty in self.arg_unique_types[i].iter() { + for arg_ty in self.arg_unique_types[i].iter() { locals.push(Context::format_arg(self.ecx, self.macsp, e.span, arg_ty, name)); } heads.push(self.ecx.expr_addr_of(e.span, e)); diff --git a/src/librustc_builtin_macros/global_allocator.rs b/src/librustc_builtin_macros/global_allocator.rs index 8de7455a09a..5d16be3206a 100644 --- a/src/librustc_builtin_macros/global_allocator.rs +++ b/src/librustc_builtin_macros/global_allocator.rs @@ -57,12 +57,12 @@ impl AllocFnFactory<'_, '_> { fn allocator_fn(&self, method: &AllocatorMethod) -> Stmt { let mut abi_args = Vec::new(); let mut i = 0; - let ref mut mk = || { + let mut mk = || { let name = self.cx.ident_of(&format!("arg{}", i), self.span); i += 1; name }; - let args = method.inputs.iter().map(|ty| self.arg_ty(ty, &mut abi_args, mk)).collect(); + let args = method.inputs.iter().map(|ty| self.arg_ty(ty, &mut abi_args, &mut mk)).collect(); let result = self.call_allocator(method.name, args); let (output_ty, output_expr) = self.ret_ty(&method.output, result); let decl = self.cx.fn_decl(abi_args, ast::FnRetTy::Ty(output_ty)); diff --git a/src/librustc_builtin_macros/test.rs b/src/librustc_builtin_macros/test.rs index 7fe65f28532..bc194a3eec4 100644 --- a/src/librustc_builtin_macros/test.rs +++ b/src/librustc_builtin_macros/test.rs @@ -313,7 +313,7 @@ fn should_fail(i: &ast::Item) -> bool { fn should_panic(cx: &ExtCtxt<'_>, i: &ast::Item) -> ShouldPanic { match attr::find_by_name(&i.attrs, sym::should_panic) { Some(attr) => { - let ref sd = cx.parse_sess.span_diagnostic; + let sd = &cx.parse_sess.span_diagnostic; match attr.meta_item_list() { // Handle #[should_panic(expected = "foo")] @@ -378,7 +378,7 @@ fn test_type(cx: &ExtCtxt<'_>) -> TestType { fn has_test_signature(cx: &ExtCtxt<'_>, i: &ast::Item) -> bool { let has_should_panic_attr = attr::contains_name(&i.attrs, sym::should_panic); - let ref sd = cx.parse_sess.span_diagnostic; + let sd = &cx.parse_sess.span_diagnostic; if let ast::ItemKind::Fn(_, ref sig, ref generics, _) = i.kind { if let ast::Unsafe::Yes(span) = sig.header.unsafety { sd.struct_span_err(i.span, "unsafe functions cannot be used for tests") diff --git a/src/librustc_builtin_macros/test_harness.rs b/src/librustc_builtin_macros/test_harness.rs index 51a21702805..e7e1ad8eda7 100644 --- a/src/librustc_builtin_macros/test_harness.rs +++ b/src/librustc_builtin_macros/test_harness.rs @@ -326,7 +326,7 @@ fn mk_main(cx: &mut TestCtxt<'_>) -> P<ast::Item> { /// &[&test1, &test2] fn mk_tests_slice(cx: &TestCtxt<'_>, sp: Span) -> P<ast::Expr> { debug!("building test vector from {} tests", cx.test_cases.len()); - let ref ecx = cx.ext_cx; + let ecx = &cx.ext_cx; ecx.expr_vec_slice( sp, diff --git a/src/librustc_codegen_llvm/asm.rs b/src/librustc_codegen_llvm/asm.rs index 8066136c2fe..c8f0fe8c723 100644 --- a/src/librustc_codegen_llvm/asm.rs +++ b/src/librustc_codegen_llvm/asm.rs @@ -60,7 +60,7 @@ impl AsmBuilderMethods<'tcx> for Builder<'a, 'll, 'tcx> { .chain(ia.inputs.iter().map(|s| s.to_string())) .chain(ext_constraints) .chain(clobbers) - .chain(arch_clobbers.iter().map(|s| s.to_string())) + .chain(arch_clobbers.iter().map(|s| (*s).to_string())) .collect::<Vec<String>>() .join(","); diff --git a/src/librustc_incremental/persist/dirty_clean.rs b/src/librustc_incremental/persist/dirty_clean.rs index f304292d922..e212dc81070 100644 --- a/src/librustc_incremental/persist/dirty_clean.rs +++ b/src/librustc_incremental/persist/dirty_clean.rs @@ -343,7 +343,8 @@ impl DirtyCleanVisitor<'tcx> { &format!("clean/dirty auto-assertions not yet defined for {:?}", node), ), }; - let labels = Labels::from_iter(labels.iter().flat_map(|s| s.iter().map(|l| l.to_string()))); + let labels = + Labels::from_iter(labels.iter().flat_map(|s| s.iter().map(|l| (*l).to_string()))); (name, labels) } diff --git a/src/librustc_infer/traits/auto_trait.rs b/src/librustc_infer/traits/auto_trait.rs index 1a4f899ac85..3166fe06576 100644 --- a/src/librustc_infer/traits/auto_trait.rs +++ b/src/librustc_infer/traits/auto_trait.rs @@ -150,7 +150,7 @@ impl<'tcx> AutoTraitFinder<'tcx> { // SelectionContext to return it back to us. let (new_env, user_env) = match self.evaluate_predicates( - &mut infcx, + &infcx, trait_did, ty, orig_env, diff --git a/src/librustc_infer/traits/select.rs b/src/librustc_infer/traits/select.rs index 4c312c9fce2..fd94e3b6994 100644 --- a/src/librustc_infer/traits/select.rs +++ b/src/librustc_infer/traits/select.rs @@ -1341,7 +1341,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { stack: &TraitObligationStack<'o, 'tcx>, ) -> Result<SelectionCandidateSet<'tcx>, SelectionError<'tcx>> { let TraitObligationStack { obligation, .. } = *stack; - let ref obligation = Obligation { + let obligation = &Obligation { param_env: obligation.param_env, cause: obligation.cause.clone(), recursion_depth: obligation.recursion_depth, diff --git a/src/librustc_lint/context.rs b/src/librustc_lint/context.rs index a6e8a0ab930..5b7b73b48ec 100644 --- a/src/librustc_lint/context.rs +++ b/src/librustc_lint/context.rs @@ -369,7 +369,7 @@ impl LintStore { return if *silent { CheckLintNameResult::Ok(&lint_ids) } else { - CheckLintNameResult::Tool(Err((Some(&lint_ids), name.to_string()))) + CheckLintNameResult::Tool(Err((Some(&lint_ids), (*name).to_string()))) }; } CheckLintNameResult::Ok(&lint_ids) @@ -404,7 +404,7 @@ impl LintStore { return if *silent { CheckLintNameResult::Tool(Err((Some(&lint_ids), complete_name))) } else { - CheckLintNameResult::Tool(Err((Some(&lint_ids), name.to_string()))) + CheckLintNameResult::Tool(Err((Some(&lint_ids), (*name).to_string()))) }; } CheckLintNameResult::Tool(Err((Some(&lint_ids), complete_name))) diff --git a/src/librustc_mir/dataflow/generic/graphviz.rs b/src/librustc_mir/dataflow/generic/graphviz.rs index 157526d3c51..f8e1d3e9fe8 100644 --- a/src/librustc_mir/dataflow/generic/graphviz.rs +++ b/src/librustc_mir/dataflow/generic/graphviz.rs @@ -604,8 +604,8 @@ fn write_diff<A: Analysis<'tcx>>( Ok(()) } -const BR_LEFT: &'static str = r#"<br align="left"/>"#; -const BR_LEFT_SPACE: &'static str = r#"<br align="left"/> "#; +const BR_LEFT: &str = r#"<br align="left"/>"#; +const BR_LEFT_SPACE: &str = r#"<br align="left"/> "#; /// Line break policy that breaks at 40 characters and starts the next line with a single space. const LIMIT_30_ALIGN_1: Option<LineBreak> = Some(LineBreak { sequence: BR_LEFT_SPACE, limit: 30 }); diff --git a/src/librustc_mir/dataflow/generic/visitor.rs b/src/librustc_mir/dataflow/generic/visitor.rs index 5bad8c61a0c..6e1513bcd1d 100644 --- a/src/librustc_mir/dataflow/generic/visitor.rs +++ b/src/librustc_mir/dataflow/generic/visitor.rs @@ -22,20 +22,20 @@ pub fn visit_results<F>( let loc = Location { block, statement_index }; results.reconstruct_before_statement_effect(&mut state, stmt, loc); - vis.visit_statement(&mut state, stmt, loc); + vis.visit_statement(&state, stmt, loc); results.reconstruct_statement_effect(&mut state, stmt, loc); - vis.visit_statement_exit(&mut state, stmt, loc); + vis.visit_statement_exit(&state, stmt, loc); } let loc = body.terminator_loc(block); let term = block_data.terminator(); results.reconstruct_before_terminator_effect(&mut state, term, loc); - vis.visit_terminator(&mut state, term, loc); + vis.visit_terminator(&state, term, loc); results.reconstruct_terminator_effect(&mut state, term, loc); - vis.visit_terminator_exit(&mut state, term, loc); + vis.visit_terminator_exit(&state, term, loc); } } diff --git a/src/librustc_mir/interpret/terminator.rs b/src/librustc_mir/interpret/terminator.rs index 08d4ae34afb..ea8378574a3 100644 --- a/src/librustc_mir/interpret/terminator.rs +++ b/src/librustc_mir/interpret/terminator.rs @@ -311,9 +311,8 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { // taking into account the `spread_arg`. If we could write // this is a single iterator (that handles `spread_arg`), then // `pass_argument` would be the loop body. It takes care to - // not advance `caller_iter` for ZSTs. - let mut locals_iter = body.args_iter(); - while let Some(local) = locals_iter.next() { + // not advance `caller_iter` for ZSTs + for local in body.args_iter() { let dest = self.eval_place(&mir::Place::from(local))?; if Some(local) == body.spread_arg { // Must be a tuple diff --git a/src/librustc_mir/transform/promote_consts.rs b/src/librustc_mir/transform/promote_consts.rs index 286740f99dd..9fe21964b98 100644 --- a/src/librustc_mir/transform/promote_consts.rs +++ b/src/librustc_mir/transform/promote_consts.rs @@ -920,7 +920,7 @@ impl<'a, 'tcx> Promoter<'a, 'tcx> { let (blocks, local_decls) = self.source.basic_blocks_and_local_decls_mut(); match candidate { Candidate::Ref(loc) => { - let ref mut statement = blocks[loc.block].statements[loc.statement_index]; + let statement = &mut blocks[loc.block].statements[loc.statement_index]; match statement.kind { StatementKind::Assign(box ( _, @@ -971,7 +971,7 @@ impl<'a, 'tcx> Promoter<'a, 'tcx> { } } Candidate::Repeat(loc) => { - let ref mut statement = blocks[loc.block].statements[loc.statement_index]; + let statement = &mut blocks[loc.block].statements[loc.statement_index]; match statement.kind { StatementKind::Assign(box (_, Rvalue::Repeat(ref mut operand, _))) => { let ty = operand.ty(local_decls, self.tcx); diff --git a/src/librustc_mir_build/hair/pattern/_match.rs b/src/librustc_mir_build/hair/pattern/_match.rs index 4c7e6e1754a..5b054c04522 100644 --- a/src/librustc_mir_build/hair/pattern/_match.rs +++ b/src/librustc_mir_build/hair/pattern/_match.rs @@ -2331,7 +2331,7 @@ fn specialize_one_pattern<'p, 'tcx>( PatKind::Binding { .. } | PatKind::Wild => Some(ctor_wild_subpatterns.iter().collect()), PatKind::Variant { adt_def, variant_index, ref subpatterns, .. } => { - let ref variant = adt_def.variants[variant_index]; + let variant = &adt_def.variants[variant_index]; let is_non_exhaustive = cx.is_foreign_non_exhaustive_variant(pat.ty, variant); Some(Variant(variant.def_id)) .filter(|variant_constructor| variant_constructor == constructor) diff --git a/src/librustc_parse/parser/diagnostics.rs b/src/librustc_parse/parser/diagnostics.rs index 0759c43d452..8b43b424f55 100644 --- a/src/librustc_parse/parser/diagnostics.rs +++ b/src/librustc_parse/parser/diagnostics.rs @@ -19,7 +19,7 @@ use rustc_span::{MultiSpan, Span, SpanSnippetError, DUMMY_SP}; use log::{debug, trace}; use std::mem; -const TURBOFISH: &'static str = "use `::<...>` instead of `<...>` to specify type arguments"; +const TURBOFISH: &str = "use `::<...>` instead of `<...>` to specify type arguments"; /// Creates a placeholder argument. pub(super) fn dummy_arg(ident: Ident) -> Param { diff --git a/src/librustc_resolve/imports.rs b/src/librustc_resolve/imports.rs index 73bc038ea15..3b018005a88 100644 --- a/src/librustc_resolve/imports.rs +++ b/src/librustc_resolve/imports.rs @@ -1432,7 +1432,7 @@ impl<'a, 'b> ImportResolver<'a, 'b> { } msg } - ref s @ _ => bug!("unexpected import subclass {:?}", s), + ref s => bug!("unexpected import subclass {:?}", s), }; let mut err = this.session.struct_span_err(binding.span, &msg); diff --git a/src/librustc_typeck/check/mod.rs b/src/librustc_typeck/check/mod.rs index b7353c6af26..d8b23998e72 100644 --- a/src/librustc_typeck/check/mod.rs +++ b/src/librustc_typeck/check/mod.rs @@ -737,8 +737,8 @@ impl ItemLikeVisitor<'tcx> for CheckItemTypesVisitor<'tcx> { } pub fn check_wf_new(tcx: TyCtxt<'_>) { - let mut visit = wfcheck::CheckTypeWellFormedVisitor::new(tcx); - tcx.hir().krate().par_visit_all_item_likes(&mut visit); + let visit = wfcheck::CheckTypeWellFormedVisitor::new(tcx); + tcx.hir().krate().par_visit_all_item_likes(&visit); } fn check_mod_item_types(tcx: TyCtxt<'_>, module_def_id: DefId) { diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs index 2dad3d1d6d7..26462e61e5d 100644 --- a/src/librustc_typeck/collect.rs +++ b/src/librustc_typeck/collect.rs @@ -151,7 +151,7 @@ crate fn placeholder_type_error( .unwrap_or(&"ParamName"); let mut sugg: Vec<_> = - placeholder_types.iter().map(|sp| (*sp, type_name.to_string())).collect(); + placeholder_types.iter().map(|sp| (*sp, (*type_name).to_string())).collect(); if generics.is_empty() { sugg.push((span, format!("<{}>", type_name))); } else if let Some(arg) = generics.iter().find(|arg| match arg.name { @@ -160,7 +160,7 @@ crate fn placeholder_type_error( }) { // Account for `_` already present in cases like `struct S<_>(_);` and suggest // `struct S<T>(T);` instead of `struct S<_, T>(T);`. - sugg.push((arg.span, type_name.to_string())); + sugg.push((arg.span, (*type_name).to_string())); } else { sugg.push(( generics.iter().last().unwrap().span.shrink_to_hi(), diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 7c845a9b66b..4c7765b2965 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -50,7 +50,7 @@ pub use self::types::Type::*; pub use self::types::Visibility::{Inherited, Public}; pub use self::types::*; -const FN_OUTPUT_NAME: &'static str = "Output"; +const FN_OUTPUT_NAME: &str = "Output"; pub trait Clean<T> { fn clean(&self, cx: &DocContext<'_>) -> T; diff --git a/src/librustdoc/docfs.rs b/src/librustdoc/docfs.rs index ecc394a2bc9..9c9a00295c3 100644 --- a/src/librustdoc/docfs.rs +++ b/src/librustdoc/docfs.rs @@ -90,14 +90,14 @@ impl DocFS { let sender = self.errors.sender.clone().unwrap(); rayon::spawn(move || match fs::write(&path, &contents) { Ok(_) => { - sender - .send(None) - .expect(&format!("failed to send error on \"{}\"", path.display())); + sender.send(None).unwrap_or_else(|_| { + panic!("failed to send error on \"{}\"", path.display()) + }); } Err(e) => { - sender - .send(Some(format!("\"{}\": {}", path.display(), e))) - .expect(&format!("failed to send non-error on \"{}\"", path.display())); + sender.send(Some(format!("\"{}\": {}", path.display(), e))).unwrap_or_else( + |_| panic!("failed to send non-error on \"{}\"", path.display()), + ); } }); Ok(()) diff --git a/src/librustdoc/html/item_type.rs b/src/librustdoc/html/item_type.rs index 4a0f4e5a4c9..0b2b0cdc18b 100644 --- a/src/librustdoc/html/item_type.rs +++ b/src/librustdoc/html/item_type.rs @@ -62,7 +62,7 @@ impl<'a> From<&'a clean::Item> for ItemType { fn from(item: &'a clean::Item) -> ItemType { let inner = match item.inner { clean::StrippedItem(box ref item) => item, - ref inner @ _ => inner, + ref inner => inner, }; match *inner { @@ -194,7 +194,7 @@ impl fmt::Display for ItemType { } } -pub const NAMESPACE_TYPE: &'static str = "t"; -pub const NAMESPACE_VALUE: &'static str = "v"; -pub const NAMESPACE_MACRO: &'static str = "m"; -pub const NAMESPACE_KEYWORD: &'static str = "k"; +pub const NAMESPACE_TYPE: &str = "t"; +pub const NAMESPACE_VALUE: &str = "v"; +pub const NAMESPACE_MACRO: &str = "m"; +pub const NAMESPACE_KEYWORD: &str = "k"; diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index 788cc986615..42529a6682e 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -869,12 +869,8 @@ pub fn plain_summary_line(md: &str) -> String { } } let mut s = String::with_capacity(md.len() * 3 / 2); - let mut p = ParserWrapper { inner: Parser::new(md), is_in: 0, is_first: true }; - while let Some(t) = p.next() { - if !t.is_empty() { - s.push_str(&t); - } - } + let p = ParserWrapper { inner: Parser::new(md), is_in: 0, is_first: true }; + p.into_iter().filter(|t| !t.is_empty()).for_each(|i| s.push_str(&i)); s } diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs index 4dd2a6562a4..07fe439ace2 100644 --- a/src/librustdoc/html/render.rs +++ b/src/librustdoc/html/render.rs @@ -2727,7 +2727,7 @@ fn naive_assoc_href(it: &clean::Item, link: AssocItemLink<'_>) -> String { let name = it.name.as_ref().unwrap(); let ty = match it.type_() { Typedef | AssocType => AssocType, - s @ _ => s, + s => s, }; let anchor = format!("#{}.{}", ty, name); @@ -3150,7 +3150,7 @@ fn render_attribute(attr: &ast::MetaItem) -> Option<String> { } } -const ATTRIBUTE_WHITELIST: &'static [Symbol] = &[ +const ATTRIBUTE_WHITELIST: &[Symbol] = &[ sym::export_name, sym::lang, sym::link_section, @@ -4610,7 +4610,7 @@ fn item_keyword(w: &mut Buffer, cx: &Context, it: &clean::Item) { document(w, cx, it) } -crate const BASIC_KEYWORDS: &'static str = "rust, rustlang, rust-lang"; +crate const BASIC_KEYWORDS: &str = "rust, rustlang, rust-lang"; fn make_item_keywords(it: &clean::Item) -> String { format!("{}, {}", BASIC_KEYWORDS, it.name.as_ref().unwrap()) diff --git a/src/libstd/sys/unix/process/process_common.rs b/src/libstd/sys/unix/process/process_common.rs index 83f052c898b..859da691ad2 100644 --- a/src/libstd/sys/unix/process/process_common.rs +++ b/src/libstd/sys/unix/process/process_common.rs @@ -19,9 +19,9 @@ cfg_if::cfg_if! { if #[cfg(target_os = "fuchsia")] { // fuchsia doesn't have /dev/null } else if #[cfg(target_os = "redox")] { - const DEV_NULL: &'static str = "null:\0"; + const DEV_NULL: &str = "null:\0"; } else { - const DEV_NULL: &'static str = "/dev/null\0"; + const DEV_NULL: &str = "/dev/null\0"; } } diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs index b42e41cbfe6..55f9df9caaf 100644 --- a/src/libtest/lib.rs +++ b/src/libtest/lib.rs @@ -96,7 +96,7 @@ use time::TestExecTime; // Process exit code to be used to indicate test failures. const ERROR_EXIT_CODE: i32 = 101; -const SECONDARY_TEST_INVOKER_VAR: &'static str = "__RUST_TEST_INVOKE"; +const SECONDARY_TEST_INVOKER_VAR: &str = "__RUST_TEST_INVOKE"; // The default console test runner. It accepts the command line // arguments and a vector of test_descs. @@ -158,7 +158,7 @@ pub fn test_main_static_abort(tests: &[&TestDescAndFn]) { .filter(|test| test.desc.name.as_slice() == name) .map(make_owned_test) .next() - .expect(&format!("couldn't find a test with the provided name '{}'", name)); + .unwrap_or_else(|| panic!("couldn't find a test with the provided name '{}'", name)); let TestDescAndFn { desc, testfn } = test; let testfn = match testfn { StaticTestFn(f) => f, |