diff options
94 files changed, 408 insertions, 969 deletions
diff --git a/src/librustc_mir/transform/qualify_consts.rs b/src/librustc_mir/transform/qualify_consts.rs index a04dd5bb597..193b0fe05f0 100644 --- a/src/librustc_mir/transform/qualify_consts.rs +++ b/src/librustc_mir/transform/qualify_consts.rs @@ -21,7 +21,7 @@ use rustc::mir::visit::{PlaceContext, Visitor, MutatingUseContext, NonMutatingUs use rustc::middle::lang_items; use rustc::session::config::nightly_options; use syntax::ast::LitKind; -use syntax::feature_gate::{UnstableFeatures, feature_err, emit_feature_err, GateIssue}; +use syntax::feature_gate::{UnstableFeatures, emit_feature_err, GateIssue}; use syntax_pos::{Span, DUMMY_SP}; use std::fmt; @@ -104,7 +104,6 @@ struct Qualifier<'a, 'gcx: 'a+'tcx, 'tcx: 'a> { param_env: ty::ParamEnv<'tcx>, local_qualif: IndexVec<Local, Option<Qualif>>, qualif: Qualif, - const_fn_arg_vars: BitSet<Local>, temp_promotion_state: IndexVec<Local, TempState>, promotion_candidates: Vec<Candidate> } @@ -139,7 +138,6 @@ impl<'a, 'tcx> Qualifier<'a, 'tcx, 'tcx> { param_env, local_qualif, qualif: Qualif::empty(), - const_fn_arg_vars: BitSet::new_empty(mir.local_decls.len()), temp_promotion_state: temps, promotion_candidates: vec![] } @@ -168,26 +166,6 @@ impl<'a, 'tcx> Qualifier<'a, 'tcx, 'tcx> { } } - /// Error about extra statements in a constant. - fn statement_like(&mut self) { - self.add(Qualif::NOT_CONST); - if self.mode != Mode::Fn { - let mut err = feature_err( - &self.tcx.sess.parse_sess, - "const_let", - self.span, - GateIssue::Language, - &format!("statements in {}s are unstable", self.mode), - ); - if self.tcx.sess.teach(&err.get_code().unwrap()) { - err.note("Blocks in constants may only contain items (such as constant, function \ - definition, etc...) and a tail expression."); - err.help("To avoid it, you have to replace the non-item object."); - } - err.emit(); - } - } - /// Add the given qualification to self.qualif. fn add(&mut self, qualif: Qualif) { self.qualif = self.qualif | qualif; @@ -233,80 +211,46 @@ impl<'a, 'tcx> Qualifier<'a, 'tcx, 'tcx> { return; } - if self.tcx.features().const_let { - let mut dest = dest; - let index = loop { - match dest { - // with `const_let` active, we treat all locals equal - Place::Local(index) => break *index, - // projections are transparent for assignments - // we qualify the entire destination at once, even if just a field would have - // stricter qualification - Place::Projection(proj) => { - // Catch more errors in the destination. `visit_place` also checks various - // projection rules like union field access and raw pointer deref - self.visit_place( - dest, - PlaceContext::MutatingUse(MutatingUseContext::Store), - location - ); - dest = &proj.base; - }, - Place::Promoted(..) => bug!("promoteds don't exist yet during promotion"), - Place::Static(..) => { - // Catch more errors in the destination. `visit_place` also checks that we - // do not try to access statics from constants or try to mutate statics - self.visit_place( - dest, - PlaceContext::MutatingUse(MutatingUseContext::Store), - location - ); - return; - } + let mut dest = dest; + let index = loop { + match dest { + // We treat all locals equal in constants + Place::Local(index) => break *index, + // projections are transparent for assignments + // we qualify the entire destination at once, even if just a field would have + // stricter qualification + Place::Projection(proj) => { + // Catch more errors in the destination. `visit_place` also checks various + // projection rules like union field access and raw pointer deref + self.visit_place( + dest, + PlaceContext::MutatingUse(MutatingUseContext::Store), + location + ); + dest = &proj.base; + }, + Place::Promoted(..) => bug!("promoteds don't exist yet during promotion"), + Place::Static(..) => { + // Catch more errors in the destination. `visit_place` also checks that we + // do not try to access statics from constants or try to mutate statics + self.visit_place( + dest, + PlaceContext::MutatingUse(MutatingUseContext::Store), + location + ); + return; } - }; - debug!("store to var {:?}", index); - match &mut self.local_qualif[index] { - // this is overly restrictive, because even full assignments do not clear the qualif - // While we could special case full assignments, this would be inconsistent with - // aggregates where we overwrite all fields via assignments, which would not get - // that feature. - Some(ref mut qualif) => *qualif = *qualif | self.qualif, - // insert new qualification - qualif @ None => *qualif = Some(self.qualif), - } - return; - } - - match *dest { - Place::Local(index) if self.mir.local_kind(index) == LocalKind::Temp || - self.mir.local_kind(index) == LocalKind::ReturnPointer => { - debug!("store to {:?} (temp or return pointer)", index); - store(&mut self.local_qualif[index]) - } - - Place::Projection(box Projection { - base: Place::Local(index), - elem: ProjectionElem::Deref - }) if self.mir.local_kind(index) == LocalKind::Temp - && self.mir.local_decls[index].ty.is_box() - && self.local_qualif[index].map_or(false, |qualif| { - qualif.contains(Qualif::NOT_CONST) - }) => { - // Part of `box expr`, we should've errored - // already for the Box allocation Rvalue. - } - - // This must be an explicit assignment. - _ => { - // Catch more errors in the destination. - self.visit_place( - dest, - PlaceContext::MutatingUse(MutatingUseContext::Store), - location - ); - self.statement_like(); } + }; + debug!("store to var {:?}", index); + match &mut self.local_qualif[index] { + // this is overly restrictive, because even full assignments do not clear the qualif + // While we could special case full assignments, this would be inconsistent with + // aggregates where we overwrite all fields via assignments, which would not get + // that feature. + Some(ref mut qualif) => *qualif = *qualif | self.qualif, + // insert new qualification + qualif @ None => *qualif = Some(self.qualif), } } @@ -347,45 +291,6 @@ impl<'a, 'tcx> Qualifier<'a, 'tcx, 'tcx> { TerminatorKind::FalseUnwind { .. } => None, TerminatorKind::Return => { - if !self.tcx.features().const_let { - // Check for unused values. This usually means - // there are extra statements in the AST. - for temp in mir.temps_iter() { - if self.local_qualif[temp].is_none() { - continue; - } - - let state = self.temp_promotion_state[temp]; - if let TempState::Defined { location, uses: 0 } = state { - let data = &mir[location.block]; - let stmt_idx = location.statement_index; - - // Get the span for the initialization. - let source_info = if stmt_idx < data.statements.len() { - data.statements[stmt_idx].source_info - } else { - data.terminator().source_info - }; - self.span = source_info.span; - - // Treat this as a statement in the AST. - self.statement_like(); - } - } - - // Make sure there are no extra unassigned variables. - self.qualif = Qualif::NOT_CONST; - for index in mir.vars_iter() { - if !self.const_fn_arg_vars.contains(index) { - debug!("unassigned variable {:?}", index); - self.assign(&Place::Local(index), Location { - block: bb, - statement_index: usize::MAX, - }); - } - } - } - break; } }; @@ -454,12 +359,7 @@ impl<'a, 'tcx> Visitor<'tcx> for Qualifier<'a, 'tcx, 'tcx> { LocalKind::ReturnPointer => { self.not_const(); } - LocalKind::Var if !self.tcx.features().const_let => { - if self.mode != Mode::Fn { - emit_feature_err(&self.tcx.sess.parse_sess, "const_let", - self.span, GateIssue::Language, - &format!("let bindings in {}s are unstable",self.mode)); - } + LocalKind::Var if self.mode == Mode::Fn => { self.add(Qualif::NOT_CONST); } LocalKind::Var | @@ -569,6 +469,8 @@ impl<'a, 'tcx> Visitor<'tcx> for Qualifier<'a, 'tcx, 'tcx> { } } + ProjectionElem::ConstantIndex {..} | + ProjectionElem::Subslice {..} | ProjectionElem::Field(..) | ProjectionElem::Index(_) => { let base_ty = proj.base.ty(this.mir, this.tcx).to_ty(this.tcx); @@ -598,8 +500,6 @@ impl<'a, 'tcx> Visitor<'tcx> for Qualifier<'a, 'tcx, 'tcx> { this.qualif.restrict(ty, this.tcx, this.param_env); } - ProjectionElem::ConstantIndex {..} | - ProjectionElem::Subslice {..} | ProjectionElem::Downcast(..) => { this.not_const() } @@ -1168,46 +1068,6 @@ impl<'a, 'tcx> Visitor<'tcx> for Qualifier<'a, 'tcx, 'tcx> { debug!("visit_assign: dest={:?} rvalue={:?} location={:?}", dest, rvalue, location); self.visit_rvalue(rvalue, location); - // Check the allowed const fn argument forms. - if let (Mode::ConstFn, &Place::Local(index)) = (self.mode, dest) { - if self.mir.local_kind(index) == LocalKind::Var && - self.const_fn_arg_vars.insert(index) && - !self.tcx.features().const_let { - // Direct use of an argument is permitted. - match *rvalue { - Rvalue::Use(Operand::Copy(Place::Local(local))) | - Rvalue::Use(Operand::Move(Place::Local(local))) => { - if self.mir.local_kind(local) == LocalKind::Arg { - return; - } - } - _ => {} - } - // Avoid a generic error for other uses of arguments. - if self.qualif.contains(Qualif::FN_ARGUMENT) { - let decl = &self.mir.local_decls[index]; - let mut err = feature_err( - &self.tcx.sess.parse_sess, - "const_let", - decl.source_info.span, - GateIssue::Language, - "arguments of constant functions can only be immutable by-value bindings" - ); - if self.tcx.sess.teach(&err.get_code().unwrap()) { - err.note("Constant functions are not allowed to mutate anything. Thus, \ - binding to an argument with a mutable pattern is not allowed."); - err.note("Remove any mutable bindings from the argument list to fix this \ - error. In case you need to mutate the argument, try lazily \ - initializing a global variable instead of using a const fn, or \ - refactoring the code to a functional style to avoid mutation if \ - possible."); - } - err.emit(); - return; - } - } - } - self.assign(dest, location); } diff --git a/src/librustc_mir/transform/qualify_min_const_fn.rs b/src/librustc_mir/transform/qualify_min_const_fn.rs index 33f309c9957..41a042ebcb6 100644 --- a/src/librustc_mir/transform/qualify_min_const_fn.rs +++ b/src/librustc_mir/transform/qualify_min_const_fn.rs @@ -65,12 +65,6 @@ pub fn is_min_const_fn( } } - for local in mir.vars_iter() { - return Err(( - mir.local_decls[local].source_info.span, - "local variables in const fn are unstable".into(), - )); - } for local in &mir.local_decls { check_ty(tcx, local.ty, local.source_info.span)?; } @@ -147,7 +141,7 @@ fn check_rvalue( check_operand(tcx, mir, operand, span) } Rvalue::Len(place) | Rvalue::Discriminant(place) | Rvalue::Ref(_, _, place) => { - check_place(tcx, mir, place, span, PlaceMode::Read) + check_place(tcx, mir, place, span) } Rvalue::Cast(CastKind::Misc, operand, cast_ty) => { use rustc::ty::cast::CastTy; @@ -213,11 +207,6 @@ fn check_rvalue( } } -enum PlaceMode { - Assign, - Read, -} - fn check_statement( tcx: TyCtxt<'a, 'tcx, 'tcx>, mir: &'a Mir<'tcx>, @@ -226,11 +215,11 @@ fn check_statement( let span = statement.source_info.span; match &statement.kind { StatementKind::Assign(place, rval) => { - check_place(tcx, mir, place, span, PlaceMode::Assign)?; + check_place(tcx, mir, place, span)?; check_rvalue(tcx, mir, rval, span) } - StatementKind::FakeRead(_, place) => check_place(tcx, mir, place, span, PlaceMode::Read), + StatementKind::FakeRead(_, place) => check_place(tcx, mir, place, span), // just an assignment StatementKind::SetDiscriminant { .. } => Ok(()), @@ -256,7 +245,7 @@ fn check_operand( ) -> McfResult { match operand { Operand::Move(place) | Operand::Copy(place) => { - check_place(tcx, mir, place, span, PlaceMode::Read) + check_place(tcx, mir, place, span) } Operand::Constant(_) => Ok(()), } @@ -267,29 +256,17 @@ fn check_place( mir: &'a Mir<'tcx>, place: &Place<'tcx>, span: Span, - mode: PlaceMode, ) -> McfResult { match place { - Place::Local(l) => match mode { - PlaceMode::Assign => match mir.local_kind(*l) { - LocalKind::Temp | LocalKind::ReturnPointer => Ok(()), - LocalKind::Arg | LocalKind::Var => { - Err((span, "assignments in const fn are unstable".into())) - } - }, - PlaceMode::Read => Ok(()), - }, + Place::Local(_) => Ok(()), // promoteds are always fine, they are essentially constants Place::Promoted(_) => Ok(()), Place::Static(_) => Err((span, "cannot access `static` items in const fn".into())), Place::Projection(proj) => { match proj.elem { + | ProjectionElem::ConstantIndex { .. } | ProjectionElem::Subslice { .. } | ProjectionElem::Deref | ProjectionElem::Field(..) | ProjectionElem::Index(_) => { - check_place(tcx, mir, &proj.base, span, mode) - } - // slice patterns are unstable - | ProjectionElem::ConstantIndex { .. } | ProjectionElem::Subslice { .. } => { - return Err((span, "slice patterns in const fn are unstable".into())) + check_place(tcx, mir, &proj.base, span) } | ProjectionElem::Downcast(..) => { Err((span, "`match` or `if let` in `const fn` is unstable".into())) @@ -311,10 +288,10 @@ fn check_terminator( | TerminatorKind::Resume => Ok(()), TerminatorKind::Drop { location, .. } => { - check_place(tcx, mir, location, span, PlaceMode::Read) + check_place(tcx, mir, location, span) } TerminatorKind::DropAndReplace { location, value, .. } => { - check_place(tcx, mir, location, span, PlaceMode::Read)?; + check_place(tcx, mir, location, span)?; check_operand(tcx, mir, value, span) }, diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index cddec3eb23a..6c5c7defd43 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -193,9 +193,6 @@ declare_features! ( // Allows the definition of `const` functions with some advanced features. (active, const_fn, "1.2.0", Some(24111), None), - // Allows let bindings and destructuring in `const` functions and constants. - (active, const_let, "1.22.1", Some(48821), None), - // Allows accessing fields of unions inside `const` functions. (active, const_fn_union, "1.27.0", Some(51909), None), @@ -686,6 +683,10 @@ declare_features! ( (accepted, repr_packed, "1.33.0", Some(33158), None), // Allows calling `const unsafe fn` inside `unsafe` blocks in `const fn` functions. (accepted, min_const_unsafe_fn, "1.33.0", Some(55607), None), + // Allows let bindings, assignments and destructuring in `const` functions and constants. + // As long as control flow is not implemented in const eval, `&&` and `||` may not be used + // at the same time as let bindings. + (accepted, const_let, "1.33.0", Some(48821), None), // `#[cfg_attr(predicate, multiple, attributes, here)]` (accepted, cfg_attr_multi, "1.33.0", Some(54881), None), ); diff --git a/src/test/compile-fail/const-fn-error.rs b/src/test/compile-fail/const-fn-error.rs index 9913138693c..da6036a04a5 100644 --- a/src/test/compile-fail/const-fn-error.rs +++ b/src/test/compile-fail/const-fn-error.rs @@ -1,4 +1,4 @@ -#![feature(const_fn, const_let)] +#![feature(const_fn)] const X : usize = 2; diff --git a/src/test/run-pass/ctfe/const-block-non-item-statement-3.rs b/src/test/run-pass/ctfe/const-block-non-item-statement-3.rs index 90295414d3e..10a4c31f24e 100644 --- a/src/test/run-pass/ctfe/const-block-non-item-statement-3.rs +++ b/src/test/run-pass/ctfe/const-block-non-item-statement-3.rs @@ -1,8 +1,8 @@ // run-pass #![allow(dead_code)] -#![feature(const_let)] - type Array = [u32; { let x = 2; 5 }]; -pub fn main() {} +pub fn main() { + let _: Array = [0; 5]; +} diff --git a/src/test/run-pass/ctfe/const-block-non-item-statement.rs b/src/test/run-pass/ctfe/const-block-non-item-statement.rs index 21ce08ab69c..a1b9b586ad0 100644 --- a/src/test/run-pass/ctfe/const-block-non-item-statement.rs +++ b/src/test/run-pass/ctfe/const-block-non-item-statement.rs @@ -1,10 +1,11 @@ // run-pass #![allow(dead_code)] -#![feature(const_let)] - +#[repr(u8)] enum Foo { Bar = { let x = 1; 3 } } -pub fn main() {} +pub fn main() { + assert_eq!(3, Foo::Bar as u8); +} diff --git a/src/test/run-pass/ctfe/issue-37550.rs b/src/test/run-pass/ctfe/issue-37550.rs index 732c34dff5a..04865830df2 100644 --- a/src/test/run-pass/ctfe/issue-37550.rs +++ b/src/test/run-pass/ctfe/issue-37550.rs @@ -2,7 +2,7 @@ #![allow(dead_code)] #![allow(unused_variables)] -#![feature(const_fn, const_let)] +#![feature(const_fn)] const fn x() { let t = true; diff --git a/src/test/run-pass/ctfe/locals-in-const-fn.rs b/src/test/run-pass/ctfe/locals-in-const-fn.rs index e527e1e88c8..95d50171a84 100644 --- a/src/test/run-pass/ctfe/locals-in-const-fn.rs +++ b/src/test/run-pass/ctfe/locals-in-const-fn.rs @@ -2,8 +2,6 @@ // https://github.com/rust-lang/rust/issues/48821 -#![feature(const_fn, const_let)] - const fn foo(i: usize) -> usize { let x = i; x diff --git a/src/test/ui/check-static-values-constraints.nll.stderr b/src/test/ui/check-static-values-constraints.nll.stderr index d2f6c7510a9..f1a23124908 100644 --- a/src/test/ui/check-static-values-constraints.nll.stderr +++ b/src/test/ui/check-static-values-constraints.nll.stderr @@ -13,44 +13,80 @@ error[E0010]: allocations are not allowed in statics LL | static STATIC11: Box<MyOwned> = box MyOwned; | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:79:37 + | +LL | static STATIC11: Box<MyOwned> = box MyOwned; + | ^^^^^^^ + error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants - --> $DIR/check-static-values-constraints.rs:89:32 + --> $DIR/check-static-values-constraints.rs:90:32 | LL | field2: SafeEnum::Variant4("str".to_string()) | ^^^^^^^^^^^^^^^^^ error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:94:5 + --> $DIR/check-static-values-constraints.rs:95:5 | LL | box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:95:9 + | +LL | box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:95:5 + --> $DIR/check-static-values-constraints.rs:97:5 | LL | box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:97:9 + | +LL | box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:99:6 + --> $DIR/check-static-values-constraints.rs:102:6 | LL | &box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:102:10 + | +LL | &box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:100:6 + --> $DIR/check-static-values-constraints.rs:104:6 | LL | &box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:104:10 + | +LL | &box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:106:5 + --> $DIR/check-static-values-constraints.rs:111:5 | LL | box 3; | ^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:111:9 + | +LL | box 3; + | ^ + error[E0507]: cannot move out of static item - --> $DIR/check-static-values-constraints.rs:110:45 + --> $DIR/check-static-values-constraints.rs:116:45 | LL | let y = { static x: Box<isize> = box 3; x }; | ^ @@ -59,12 +95,18 @@ LL | let y = { static x: Box<isize> = box 3; x }; | help: consider borrowing here: `&x` error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:110:38 + --> $DIR/check-static-values-constraints.rs:116:38 | LL | let y = { static x: Box<isize> = box 3; x }; | ^^^^^ allocation not allowed in statics -error: aborting due to 10 previous errors +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:116:42 + | +LL | let y = { static x: Box<isize> = box 3; x }; + | ^ + +error: aborting due to 17 previous errors -Some errors occurred: E0010, E0015, E0493, E0507. +Some errors occurred: E0010, E0015, E0019, E0493, E0507. For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/check-static-values-constraints.rs b/src/test/ui/check-static-values-constraints.rs index eb0fc39e1bf..acfb3b5e44b 100644 --- a/src/test/ui/check-static-values-constraints.rs +++ b/src/test/ui/check-static-values-constraints.rs @@ -78,6 +78,7 @@ struct MyOwned; static STATIC11: Box<MyOwned> = box MyOwned; //~^ ERROR allocations are not allowed in statics +//~| ERROR static contains unimplemented expression type static mut STATIC12: UnsafeStruct = UnsafeStruct; @@ -92,12 +93,16 @@ static mut STATIC14: SafeStruct = SafeStruct { static STATIC15: &'static [Box<MyOwned>] = &[ box MyOwned, //~ ERROR allocations are not allowed in statics + //~| ERROR contains unimplemented expression box MyOwned, //~ ERROR allocations are not allowed in statics + //~| ERROR contains unimplemented expression ]; static STATIC16: (&'static Box<MyOwned>, &'static Box<MyOwned>) = ( &box MyOwned, //~ ERROR allocations are not allowed in statics + //~| ERROR contains unimplemented expression &box MyOwned, //~ ERROR allocations are not allowed in statics + //~| ERROR contains unimplemented expression ); static mut STATIC17: SafeEnum = SafeEnum::Variant1; @@ -105,9 +110,11 @@ static mut STATIC17: SafeEnum = SafeEnum::Variant1; static STATIC19: Box<isize> = box 3; //~^ ERROR allocations are not allowed in statics + //~| ERROR contains unimplemented expression pub fn main() { let y = { static x: Box<isize> = box 3; x }; //~^ ERROR allocations are not allowed in statics - //~^^ ERROR cannot move out of static item + //~| ERROR cannot move out of static item + //~| ERROR contains unimplemented expression } diff --git a/src/test/ui/check-static-values-constraints.stderr b/src/test/ui/check-static-values-constraints.stderr index 450a9ba0c0d..5b1f265c34a 100644 --- a/src/test/ui/check-static-values-constraints.stderr +++ b/src/test/ui/check-static-values-constraints.stderr @@ -13,55 +13,97 @@ error[E0010]: allocations are not allowed in statics LL | static STATIC11: Box<MyOwned> = box MyOwned; | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:79:37 + | +LL | static STATIC11: Box<MyOwned> = box MyOwned; + | ^^^^^^^ + error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants - --> $DIR/check-static-values-constraints.rs:89:32 + --> $DIR/check-static-values-constraints.rs:90:32 | LL | field2: SafeEnum::Variant4("str".to_string()) | ^^^^^^^^^^^^^^^^^ error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:94:5 + --> $DIR/check-static-values-constraints.rs:95:5 | LL | box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:95:9 + | +LL | box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:95:5 + --> $DIR/check-static-values-constraints.rs:97:5 | LL | box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:97:9 + | +LL | box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:99:6 + --> $DIR/check-static-values-constraints.rs:102:6 | LL | &box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:102:10 + | +LL | &box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:100:6 + --> $DIR/check-static-values-constraints.rs:104:6 | LL | &box MyOwned, //~ ERROR allocations are not allowed in statics | ^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:104:10 + | +LL | &box MyOwned, //~ ERROR allocations are not allowed in statics + | ^^^^^^^ + error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:106:5 + --> $DIR/check-static-values-constraints.rs:111:5 | LL | box 3; | ^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:111:9 + | +LL | box 3; + | ^ + error[E0507]: cannot move out of static item - --> $DIR/check-static-values-constraints.rs:110:45 + --> $DIR/check-static-values-constraints.rs:116:45 | LL | let y = { static x: Box<isize> = box 3; x }; | ^ cannot move out of static item error[E0010]: allocations are not allowed in statics - --> $DIR/check-static-values-constraints.rs:110:38 + --> $DIR/check-static-values-constraints.rs:116:38 | LL | let y = { static x: Box<isize> = box 3; x }; | ^^^^^ allocation not allowed in statics -error: aborting due to 10 previous errors +error[E0019]: static contains unimplemented expression type + --> $DIR/check-static-values-constraints.rs:116:42 + | +LL | let y = { static x: Box<isize> = box 3; x }; + | ^ + +error: aborting due to 17 previous errors -Some errors occurred: E0010, E0015, E0493, E0507. +Some errors occurred: E0010, E0015, E0019, E0493, E0507. For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/consts/const-block-non-item-statement-2.rs b/src/test/ui/consts/const-block-non-item-statement-2.rs deleted file mode 100644 index 58a6cf6dcfd..00000000000 --- a/src/test/ui/consts/const-block-non-item-statement-2.rs +++ /dev/null @@ -1,18 +0,0 @@ -const A: usize = { 1; 2 }; -//~^ ERROR statements in constants are unstable - -const B: usize = { { } 2 }; -//~^ ERROR statements in constants are unstable - -macro_rules! foo { - () => (()) //~ ERROR statements in constants are unstable -} -const C: usize = { foo!(); 2 }; - -const D: usize = { let x = 4; 2 }; -//~^ ERROR let bindings in constants are unstable -//~| ERROR statements in constants are unstable -//~| ERROR let bindings in constants are unstable -//~| ERROR statements in constants are unstable - -pub fn main() {} diff --git a/src/test/ui/consts/const-block-non-item-statement-2.stderr b/src/test/ui/consts/const-block-non-item-statement-2.stderr deleted file mode 100644 index e0c61a953f5..00000000000 --- a/src/test/ui/consts/const-block-non-item-statement-2.stderr +++ /dev/null @@ -1,62 +0,0 @@ -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:1:20 - | -LL | const A: usize = { 1; 2 }; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:4:20 - | -LL | const B: usize = { { } 2 }; - | ^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:8:12 - | -LL | () => (()) //~ ERROR statements in constants are unstable - | ^^ -LL | } -LL | const C: usize = { foo!(); 2 }; - | ------- in this macro invocation - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:12:28 - | -LL | const D: usize = { let x = 4; 2 }; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:12:28 - | -LL | const D: usize = { let x = 4; 2 }; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:12:1 - | -LL | const D: usize = { let x = 4; 2 }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-2.rs:12:1 - | -LL | const D: usize = { let x = 4; 2 }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 7 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/consts/const-block-non-item-statement-3.rs b/src/test/ui/consts/const-block-non-item-statement-3.rs deleted file mode 100644 index 867840925b2..00000000000 --- a/src/test/ui/consts/const-block-non-item-statement-3.rs +++ /dev/null @@ -1,7 +0,0 @@ -type Array = [u32; { let x = 2; 5 }]; -//~^ ERROR let bindings in constants are unstable -//~| ERROR statements in constants are unstable -//~| ERROR let bindings in constants are unstable -//~| ERROR statements in constants are unstable - -pub fn main() {} diff --git a/src/test/ui/consts/const-block-non-item-statement-3.stderr b/src/test/ui/consts/const-block-non-item-statement-3.stderr deleted file mode 100644 index 0a549bc0c8d..00000000000 --- a/src/test/ui/consts/const-block-non-item-statement-3.stderr +++ /dev/null @@ -1,35 +0,0 @@ -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-3.rs:1:31 - | -LL | type Array = [u32; { let x = 2; 5 }]; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-3.rs:1:31 - | -LL | type Array = [u32; { let x = 2; 5 }]; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-3.rs:1:20 - | -LL | type Array = [u32; { let x = 2; 5 }]; - | ^^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement-3.rs:1:20 - | -LL | type Array = [u32; { let x = 2; 5 }]; - | ^^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 4 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/consts/const-block-non-item-statement.rs b/src/test/ui/consts/const-block-non-item-statement.rs index 2db9e2413e5..5ecf9a04984 100644 --- a/src/test/ui/consts/const-block-non-item-statement.rs +++ b/src/test/ui/consts/const-block-non-item-statement.rs @@ -1,9 +1,23 @@ +// compile-pass + enum Foo { Bar = { let x = 1; 3 } - //~^ ERROR let bindings in constants are unstable - //~| ERROR statements in constants are unstable - //~| ERROR let bindings in constants are unstable - //~| ERROR statements in constants are unstable } + +const A: usize = { 1; 2 }; + +const B: usize = { { } 2 }; + +macro_rules! foo { + () => (()) +} + +const C: usize = { foo!(); 2 }; + +const D: usize = { let x = 4; 2 }; + +type Array = [u32; { let x = 2; 5 }]; +type Array2 = [u32; { let mut x = 2; x = 3; x}]; + pub fn main() {} diff --git a/src/test/ui/consts/const-block-non-item-statement.stderr b/src/test/ui/consts/const-block-non-item-statement.stderr deleted file mode 100644 index f0d751e0756..00000000000 --- a/src/test/ui/consts/const-block-non-item-statement.stderr +++ /dev/null @@ -1,35 +0,0 @@ -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement.rs:2:21 - | -LL | Bar = { let x = 1; 3 } - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement.rs:2:21 - | -LL | Bar = { let x = 1; 3 } - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement.rs:2:11 - | -LL | Bar = { let x = 1; 3 } - | ^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/const-block-non-item-statement.rs:2:11 - | -LL | Bar = { let x = 1; 3 } - | ^^^^^^^^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 4 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs index ba8d032367e..4d3c714481a 100644 --- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs +++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs @@ -2,7 +2,6 @@ // The test should never compile successfully #![feature(const_raw_ptr_deref)] -#![feature(const_let)] use std::cell::UnsafeCell; diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr index 6ca9d688bd0..be1be6c0600 100644 --- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr +++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr @@ -1,5 +1,5 @@ error[E0019]: static contains unimplemented expression type - --> $DIR/assign-to-static-within-other-static-2.rs:17:5 + --> $DIR/assign-to-static-within-other-static-2.rs:16:5 | LL | *FOO.0.get() = 5; //~ ERROR contains unimplemented expression type | ^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static.rs b/src/test/ui/consts/const-eval/assign-to-static-within-other-static.rs index 9fe17bfc6a0..b4c416b1c55 100644 --- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static.rs +++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static.rs @@ -2,7 +2,6 @@ // The test should never compile successfully #![feature(const_raw_ptr_deref)] -#![feature(const_let)] use std::cell::UnsafeCell; diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static.stderr b/src/test/ui/consts/const-eval/assign-to-static-within-other-static.stderr index 2ab9765305f..31e49dc10ca 100644 --- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static.stderr +++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static.stderr @@ -1,5 +1,5 @@ error: cannot mutate statics in the initializer of another static - --> $DIR/assign-to-static-within-other-static.rs:11:5 + --> $DIR/assign-to-static-within-other-static.rs:10:5 | LL | FOO = 5; //~ ERROR cannot mutate statics in the initializer of another static | ^^^^^^^ diff --git a/src/test/ui/consts/const-eval/const_let.rs b/src/test/ui/consts/const-eval/const_let.rs index 9e6952733bb..63321b91200 100644 --- a/src/test/ui/consts/const-eval/const_let.rs +++ b/src/test/ui/consts/const-eval/const_let.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - fn main() {} struct FakeNeedsDrop; diff --git a/src/test/ui/consts/const-eval/const_let.stderr b/src/test/ui/consts/const-eval/const_let.stderr index e128ca07d86..00de97e6fb3 100644 --- a/src/test/ui/consts/const-eval/const_let.stderr +++ b/src/test/ui/consts/const-eval/const_let.stderr @@ -1,11 +1,11 @@ error[E0019]: constant contains unimplemented expression type - --> $DIR/const_let.rs:15:55 + --> $DIR/const_let.rs:13:55 | LL | const Y: FakeNeedsDrop = { let mut x = FakeNeedsDrop; x = FakeNeedsDrop; x }; | ^ error[E0019]: constant contains unimplemented expression type - --> $DIR/const_let.rs:19:35 + --> $DIR/const_let.rs:17:35 | LL | const Z: () = { let mut x = None; x = Some(FakeNeedsDrop); }; | ^ diff --git a/src/test/ui/consts/const-eval/infinite_loop.rs b/src/test/ui/consts/const-eval/infinite_loop.rs index 0d5530acc95..a2a45af7cb0 100644 --- a/src/test/ui/consts/const-eval/infinite_loop.rs +++ b/src/test/ui/consts/const-eval/infinite_loop.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - fn main() { // Tests the Collatz conjecture with an incorrect base case (0 instead of 1). // The value of `n` will loop indefinitely (4 - 2 - 1 - 4). diff --git a/src/test/ui/consts/const-eval/infinite_loop.stderr b/src/test/ui/consts/const-eval/infinite_loop.stderr index 90d2159d7b5..422c2bab6ea 100644 --- a/src/test/ui/consts/const-eval/infinite_loop.stderr +++ b/src/test/ui/consts/const-eval/infinite_loop.stderr @@ -1,5 +1,5 @@ error[E0019]: constant contains unimplemented expression type - --> $DIR/infinite_loop.rs:9:9 + --> $DIR/infinite_loop.rs:7:9 | LL | / while n != 0 { //~ ERROR constant contains unimplemented expression type LL | | n = if n % 2 == 0 { n/2 } else { 3*n + 1 }; @@ -8,7 +8,7 @@ LL | | } | |_________^ warning: Constant evaluating a complex constant, this might take some time - --> $DIR/infinite_loop.rs:6:18 + --> $DIR/infinite_loop.rs:4:18 | LL | let _ = [(); { | __________________^ @@ -21,7 +21,7 @@ LL | | }]; | |_____^ error[E0080]: evaluation of constant value failed - --> $DIR/infinite_loop.rs:10:20 + --> $DIR/infinite_loop.rs:8:20 | LL | n = if n % 2 == 0 { n/2 } else { 3*n + 1 }; | ^^^^^^^^^^ duplicate interpreter state observed here, const evaluation will never terminate diff --git a/src/test/ui/consts/const-eval/issue-52475.rs b/src/test/ui/consts/const-eval/issue-52475.rs index 2e3d6fb9e84..aafdd5fe617 100644 --- a/src/test/ui/consts/const-eval/issue-52475.rs +++ b/src/test/ui/consts/const-eval/issue-52475.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - fn main() { let _ = [(); { //~^ WARNING Constant evaluating a complex constant, this might take some time diff --git a/src/test/ui/consts/const-eval/issue-52475.stderr b/src/test/ui/consts/const-eval/issue-52475.stderr index 329ea8a21f9..4f1b2ab4c8f 100644 --- a/src/test/ui/consts/const-eval/issue-52475.stderr +++ b/src/test/ui/consts/const-eval/issue-52475.stderr @@ -1,5 +1,5 @@ error[E0019]: constant contains unimplemented expression type - --> $DIR/issue-52475.rs:8:9 + --> $DIR/issue-52475.rs:6:9 | LL | / while n < 5 { //~ ERROR constant contains unimplemented expression type LL | | n = (n + 1) % 5; //~ ERROR evaluation of constant value failed @@ -8,7 +8,7 @@ LL | | } | |_________^ warning: Constant evaluating a complex constant, this might take some time - --> $DIR/issue-52475.rs:4:18 + --> $DIR/issue-52475.rs:2:18 | LL | let _ = [(); { | __________________^ @@ -21,7 +21,7 @@ LL | | }]; | |_____^ error[E0080]: evaluation of constant value failed - --> $DIR/issue-52475.rs:9:17 + --> $DIR/issue-52475.rs:7:17 | LL | n = (n + 1) % 5; //~ ERROR evaluation of constant value failed | ^^^^^^^^^^^ duplicate interpreter state observed here, const evaluation will never terminate diff --git a/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs index 62090f4180d..32f0062168b 100644 --- a/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs +++ b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs @@ -2,7 +2,6 @@ // The test should never compile successfully #![feature(const_raw_ptr_deref)] -#![feature(const_let)] use std::cell::UnsafeCell; diff --git a/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr b/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr index 12d6e3be40a..9fad6868d20 100644 --- a/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr +++ b/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr @@ -1,11 +1,11 @@ error[E0019]: static contains unimplemented expression type - --> $DIR/mod-static-with-const-fn.rs:19:5 + --> $DIR/mod-static-with-const-fn.rs:18:5 | LL | *FOO.0.get() = 5; | ^^^^^^^^^^^^^^^^ error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants - --> $DIR/mod-static-with-const-fn.rs:22:5 + --> $DIR/mod-static-with-const-fn.rs:21:5 | LL | foo(); | ^^^^^ diff --git a/src/test/ui/consts/const-eval/ub-upvars.rs b/src/test/ui/consts/const-eval/ub-upvars.rs index 16df0c1b0cc..9b7bca6b72d 100644 --- a/src/test/ui/consts/const-eval/ub-upvars.rs +++ b/src/test/ui/consts/const-eval/ub-upvars.rs @@ -1,4 +1,4 @@ -#![feature(const_transmute,const_let)] +#![feature(const_transmute)] #![allow(const_err)] // make sure we cannot allow away the errors tested here use std::mem; diff --git a/src/test/ui/consts/const-fn-destructuring-arg.rs b/src/test/ui/consts/const-fn-destructuring-arg.rs index 7f818079a19..dcf89f90e31 100644 --- a/src/test/ui/consts/const-fn-destructuring-arg.rs +++ b/src/test/ui/consts/const-fn-destructuring-arg.rs @@ -1,17 +1,7 @@ -// test that certain things are disallowed in constant functions +// compile-pass -#![feature(const_fn)] - -// no destructuring -const fn i(( - a, - //~^ ERROR arguments of constant functions can only be immutable by-value bindings - b - //~^ ERROR arguments of constant functions can only be immutable by-value bindings - ): (u32, u32)) -> u32 { +const fn i((a, b): (u32, u32)) -> u32 { a + b - //~^ ERROR let bindings in constant functions are unstable - //~| ERROR let bindings in constant functions are unstable } fn main() {} diff --git a/src/test/ui/consts/const-fn-destructuring-arg.stderr b/src/test/ui/consts/const-fn-destructuring-arg.stderr deleted file mode 100644 index db63e830804..00000000000 --- a/src/test/ui/consts/const-fn-destructuring-arg.stderr +++ /dev/null @@ -1,35 +0,0 @@ -error[E0658]: arguments of constant functions can only be immutable by-value bindings (see issue #48821) - --> $DIR/const-fn-destructuring-arg.rs:7:13 - | -LL | a, - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: arguments of constant functions can only be immutable by-value bindings (see issue #48821) - --> $DIR/const-fn-destructuring-arg.rs:9:13 - | -LL | b - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-destructuring-arg.rs:12:5 - | -LL | a + b - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-destructuring-arg.rs:12:9 - | -LL | a + b - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 4 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/consts/const-fn-not-safe-for-const.rs b/src/test/ui/consts/const-fn-not-safe-for-const.rs index fe672e7b3e6..085ff5c58e6 100644 --- a/src/test/ui/consts/const-fn-not-safe-for-const.rs +++ b/src/test/ui/consts/const-fn-not-safe-for-const.rs @@ -27,13 +27,9 @@ const fn get_Y_addr() -> &'static u32 { } const fn get() -> u32 { - let x = 22; //~ ERROR let bindings in constant functions are unstable -//~^ ERROR statements in constant functions - let y = 44; //~ ERROR let bindings in constant functions are unstable -//~^ ERROR statements in constant functions + let x = 22; + let y = 44; x + y -//~^ ERROR let bindings in constant functions are unstable -//~| ERROR let bindings in constant functions are unstable } fn main() {} diff --git a/src/test/ui/consts/const-fn-not-safe-for-const.stderr b/src/test/ui/consts/const-fn-not-safe-for-const.stderr index 8cc4c385262..2003b137c27 100644 --- a/src/test/ui/consts/const-fn-not-safe-for-const.stderr +++ b/src/test/ui/consts/const-fn-not-safe-for-const.stderr @@ -16,55 +16,7 @@ error[E0013]: constant functions cannot refer to statics, use a constant instead LL | &Y | ^^ -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:30:13 - | -LL | let x = 22; //~ ERROR let bindings in constant functions are unstable - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:30:13 - | -LL | let x = 22; //~ ERROR let bindings in constant functions are unstable - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:32:13 - | -LL | let y = 44; //~ ERROR let bindings in constant functions are unstable - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:32:13 - | -LL | let y = 44; //~ ERROR let bindings in constant functions are unstable - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:34:5 - | -LL | x + y - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constant functions are unstable (see issue #48821) - --> $DIR/const-fn-not-safe-for-const.rs:34:9 - | -LL | x + y - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 9 previous errors +error: aborting due to 3 previous errors -Some errors occurred: E0013, E0015, E0658. +Some errors occurred: E0013, E0015. For more information about an error, try `rustc --explain E0013`. diff --git a/src/test/ui/consts/const_let_assign.rs b/src/test/ui/consts/const_let_assign.rs index a3c53a451e1..0b09b8469fd 100644 --- a/src/test/ui/consts/const_let_assign.rs +++ b/src/test/ui/consts/const_let_assign.rs @@ -1,7 +1,5 @@ // compile-pass -#![feature(const_let)] - struct S(i32); const A: () = { diff --git a/src/test/ui/consts/const_let_assign2.rs b/src/test/ui/consts/const_let_assign2.rs index 0de7396501a..1c44237e49b 100644 --- a/src/test/ui/consts/const_let_assign2.rs +++ b/src/test/ui/consts/const_let_assign2.rs @@ -1,8 +1,5 @@ // compile-pass -#![feature(const_let)] -#![feature(const_fn)] - pub struct AA { pub data: [u8; 10], } diff --git a/src/test/ui/consts/const_let_assign3.rs b/src/test/ui/consts/const_let_assign3.rs index c2ed6cd85ab..cbe73923e9c 100644 --- a/src/test/ui/consts/const_let_assign3.rs +++ b/src/test/ui/consts/const_let_assign3.rs @@ -1,4 +1,3 @@ -#![feature(const_let)] #![feature(const_fn)] struct S { @@ -18,6 +17,15 @@ const FOO: S = { s }; +type Array = [u32; { + let mut x = 2; + let y = &mut x; +//~^ ERROR references in constants may only refer to immutable values + *y = 42; +//~^ ERROR constant contains unimplemented expression type + *y +}]; + fn main() { assert_eq!(FOO.state, 3); } diff --git a/src/test/ui/consts/const_let_assign3.stderr b/src/test/ui/consts/const_let_assign3.stderr index 0f294616d25..6649fb997cc 100644 --- a/src/test/ui/consts/const_let_assign3.stderr +++ b/src/test/ui/consts/const_let_assign3.stderr @@ -1,16 +1,28 @@ error[E0019]: constant function contains unimplemented expression type - --> $DIR/const_let_assign3.rs:10:9 + --> $DIR/const_let_assign3.rs:9:9 | LL | self.state = x; | ^^^^^^^^^^^^^^ error[E0017]: references in constants may only refer to immutable values - --> $DIR/const_let_assign3.rs:17:5 + --> $DIR/const_let_assign3.rs:16:5 | LL | s.foo(3); //~ ERROR references in constants may only refer to immutable values | ^ constants require immutable values -error: aborting due to 2 previous errors +error[E0017]: references in constants may only refer to immutable values + --> $DIR/const_let_assign3.rs:22:13 + | +LL | let y = &mut x; + | ^^^^^^ constants require immutable values + +error[E0019]: constant contains unimplemented expression type + --> $DIR/const_let_assign3.rs:24:5 + | +LL | *y = 42; + | ^^^^^^^ + +error: aborting due to 4 previous errors Some errors occurred: E0017, E0019. For more information about an error, try `rustc --explain E0017`. diff --git a/src/test/ui/consts/const_let_eq.rs b/src/test/ui/consts/const_let_eq.rs index 8739cb80e94..a2364c392f2 100644 --- a/src/test/ui/consts/const_let_eq.rs +++ b/src/test/ui/consts/const_let_eq.rs @@ -1,5 +1,3 @@ -#![feature(const_let, const_fn)] - // run-pass struct Foo<T>(T); diff --git a/src/test/ui/consts/const_let_eq_float.rs b/src/test/ui/consts/const_let_eq_float.rs index 2c7262df367..c48f54e567b 100644 --- a/src/test/ui/consts/const_let_eq_float.rs +++ b/src/test/ui/consts/const_let_eq_float.rs @@ -1,6 +1,6 @@ // compile-pass -#![feature(const_let, const_fn)] +#![feature(const_fn)] struct Foo<T>(T); struct Bar<T> { x: T } diff --git a/src/test/ui/consts/const_let_irrefutable.rs b/src/test/ui/consts/const_let_irrefutable.rs new file mode 100644 index 00000000000..424a16f7ed3 --- /dev/null +++ b/src/test/ui/consts/const_let_irrefutable.rs @@ -0,0 +1,11 @@ +// compile-pass + +fn main() {} + +const fn tup((a, b): (i32, i32)) -> i32 { + a + b +} + +const fn array([a, b]: [i32; 2]) -> i32 { + a + b +} diff --git a/src/test/ui/consts/const_let_refutable.rs b/src/test/ui/consts/const_let_refutable.rs new file mode 100644 index 00000000000..345f682868f --- /dev/null +++ b/src/test/ui/consts/const_let_refutable.rs @@ -0,0 +1,5 @@ +fn main() {} + +const fn slice([a, b]: &[i32]) -> i32 { //~ ERROR refutable pattern in function argument + a + b +} diff --git a/src/test/ui/consts/const_let_refutable.stderr b/src/test/ui/consts/const_let_refutable.stderr new file mode 100644 index 00000000000..c5d2ba02a70 --- /dev/null +++ b/src/test/ui/consts/const_let_refutable.stderr @@ -0,0 +1,9 @@ +error[E0005]: refutable pattern in function argument: `&[]` not covered + --> $DIR/const_let_refutable.rs:3:16 + | +LL | const fn slice([a, b]: &[i32]) -> i32 { //~ ERROR refutable pattern in function argument + | ^^^^^^ pattern `&[]` not covered + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0005`. diff --git a/src/test/ui/consts/const_short_circuit.rs b/src/test/ui/consts/const_short_circuit.rs index cc49e4696e5..1e7b7ed3193 100644 --- a/src/test/ui/consts/const_short_circuit.rs +++ b/src/test/ui/consts/const_short_circuit.rs @@ -1,4 +1,4 @@ -#![feature(underscore_const_names, const_let)] +#![feature(underscore_const_names)] const _: bool = false && false; const _: bool = true && false; diff --git a/src/test/ui/consts/dangling-alloc-id-ice.rs b/src/test/ui/consts/dangling-alloc-id-ice.rs index 695d33b6908..dbc50f1fbd4 100644 --- a/src/test/ui/consts/dangling-alloc-id-ice.rs +++ b/src/test/ui/consts/dangling-alloc-id-ice.rs @@ -1,7 +1,5 @@ // https://github.com/rust-lang/rust/issues/55223 -#![feature(const_let)] - union Foo<'a> { y: &'a (), long_live_the_unit: &'static (), diff --git a/src/test/ui/consts/dangling-alloc-id-ice.stderr b/src/test/ui/consts/dangling-alloc-id-ice.stderr index a5fa88e5e68..2cd8711f03d 100644 --- a/src/test/ui/consts/dangling-alloc-id-ice.stderr +++ b/src/test/ui/consts/dangling-alloc-id-ice.stderr @@ -1,5 +1,5 @@ error: any use of this value will cause an error - --> $DIR/dangling-alloc-id-ice.rs:10:1 + --> $DIR/dangling-alloc-id-ice.rs:8:1 | LL | / const FOO: &() = { //~ ERROR any use of this value will cause an error LL | | let y = (); diff --git a/src/test/ui/consts/dangling_raw_ptr.rs b/src/test/ui/consts/dangling_raw_ptr.rs index 7fc773412f2..c2d8e6d421a 100644 --- a/src/test/ui/consts/dangling_raw_ptr.rs +++ b/src/test/ui/consts/dangling_raw_ptr.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - const FOO: *const u32 = { //~ ERROR any use of this value will cause an error let x = 42; &x diff --git a/src/test/ui/consts/dangling_raw_ptr.stderr b/src/test/ui/consts/dangling_raw_ptr.stderr index 3b20936f8ae..091f1f785cb 100644 --- a/src/test/ui/consts/dangling_raw_ptr.stderr +++ b/src/test/ui/consts/dangling_raw_ptr.stderr @@ -1,5 +1,5 @@ error: any use of this value will cause an error - --> $DIR/dangling_raw_ptr.rs:3:1 + --> $DIR/dangling_raw_ptr.rs:1:1 | LL | / const FOO: *const u32 = { //~ ERROR any use of this value will cause an error LL | | let x = 42; diff --git a/src/test/ui/consts/min_const_fn/min_const_fn.nll.stderr b/src/test/ui/consts/min_const_fn/min_const_fn.nll.stderr index 551bc57e5ae..91b076097b0 100644 --- a/src/test/ui/consts/min_const_fn/min_const_fn.nll.stderr +++ b/src/test/ui/consts/min_const_fn/min_const_fn.nll.stderr @@ -112,12 +112,6 @@ error: `if`, `match`, `&&` and `||` are not stable in const fn LL | const fn foo30_5(b: bool) { while b { } } //~ ERROR not stable in const fn | ^^^^^^^^^^^ -error: local variables in const fn are unstable - --> $DIR/min_const_fn.rs:99:34 - | -LL | const fn foo30_6() -> bool { let x = true; x } //~ ERROR local variables in const fn - | ^ - error: `if`, `match`, `&&` and `||` are not stable in const fn --> $DIR/min_const_fn.rs:100:44 | @@ -220,7 +214,7 @@ error: function pointers in const fn are unstable LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo } | ^^^^ -error: aborting due to 35 previous errors +error: aborting due to 34 previous errors Some errors occurred: E0493, E0515. For more information about an error, try `rustc --explain E0493`. diff --git a/src/test/ui/consts/min_const_fn/min_const_fn.rs b/src/test/ui/consts/min_const_fn/min_const_fn.rs index 238b5f7e310..05cf3d5f1f1 100644 --- a/src/test/ui/consts/min_const_fn/min_const_fn.rs +++ b/src/test/ui/consts/min_const_fn/min_const_fn.rs @@ -96,7 +96,7 @@ const fn foo30_2(x: *mut u32) -> usize { x as usize } const fn foo30_4(b: bool) -> usize { if b { 1 } else { 42 } } //~^ ERROR `if`, `match`, `&&` and `||` are not stable in const fn const fn foo30_5(b: bool) { while b { } } //~ ERROR not stable in const fn -const fn foo30_6() -> bool { let x = true; x } //~ ERROR local variables in const fn +const fn foo30_6() -> bool { let x = true; x } const fn foo36(a: bool, b: bool) -> bool { a && b } //~^ ERROR `if`, `match`, `&&` and `||` are not stable in const fn const fn foo37(a: bool, b: bool) -> bool { a || b } diff --git a/src/test/ui/consts/min_const_fn/min_const_fn.stderr b/src/test/ui/consts/min_const_fn/min_const_fn.stderr index 1c68df513b6..2cae714fbf7 100644 --- a/src/test/ui/consts/min_const_fn/min_const_fn.stderr +++ b/src/test/ui/consts/min_const_fn/min_const_fn.stderr @@ -112,12 +112,6 @@ error: `if`, `match`, `&&` and `||` are not stable in const fn LL | const fn foo30_5(b: bool) { while b { } } //~ ERROR not stable in const fn | ^^^^^^^^^^^ -error: local variables in const fn are unstable - --> $DIR/min_const_fn.rs:99:34 - | -LL | const fn foo30_6() -> bool { let x = true; x } //~ ERROR local variables in const fn - | ^ - error: `if`, `match`, `&&` and `||` are not stable in const fn --> $DIR/min_const_fn.rs:100:44 | @@ -208,6 +202,6 @@ error: function pointers in const fn are unstable LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo } | ^^^^ -error: aborting due to 35 previous errors +error: aborting due to 34 previous errors For more information about this error, try `rustc --explain E0493`. diff --git a/src/test/ui/consts/min_const_fn/mutable_borrow.rs b/src/test/ui/consts/min_const_fn/mutable_borrow.rs index 3dd76b630a8..89acfea6ed8 100644 --- a/src/test/ui/consts/min_const_fn/mutable_borrow.rs +++ b/src/test/ui/consts/min_const_fn/mutable_borrow.rs @@ -1,6 +1,6 @@ const fn mutable_ref_in_const() -> u8 { - let mut a = 0; //~ ERROR local variables in const fn - let b = &mut a; + let mut a = 0; + let b = &mut a; //~ ERROR mutable references in const fn *b } @@ -8,8 +8,8 @@ struct X; impl X { const fn inherent_mutable_ref_in_const() -> u8 { - let mut a = 0; //~ ERROR local variables in const fn - let b = &mut a; + let mut a = 0; + let b = &mut a; //~ ERROR mutable references in const fn *b } } diff --git a/src/test/ui/consts/min_const_fn/mutable_borrow.stderr b/src/test/ui/consts/min_const_fn/mutable_borrow.stderr index fa46f5c804f..5ce0f30dc6e 100644 --- a/src/test/ui/consts/min_const_fn/mutable_borrow.stderr +++ b/src/test/ui/consts/min_const_fn/mutable_borrow.stderr @@ -1,14 +1,14 @@ -error: local variables in const fn are unstable - --> $DIR/mutable_borrow.rs:2:9 +error: mutable references in const fn are unstable + --> $DIR/mutable_borrow.rs:3:9 | -LL | let mut a = 0; //~ ERROR local variables in const fn - | ^^^^^ +LL | let b = &mut a; //~ ERROR mutable references in const fn + | ^ -error: local variables in const fn are unstable - --> $DIR/mutable_borrow.rs:11:13 +error: mutable references in const fn are unstable + --> $DIR/mutable_borrow.rs:12:13 | -LL | let mut a = 0; //~ ERROR local variables in const fn - | ^^^^^ +LL | let b = &mut a; //~ ERROR mutable references in const fn + | ^ error: aborting due to 2 previous errors diff --git a/src/test/ui/consts/partial_qualif.rs b/src/test/ui/consts/partial_qualif.rs index 4ce41f80f82..32c68e69f4b 100644 --- a/src/test/ui/consts/partial_qualif.rs +++ b/src/test/ui/consts/partial_qualif.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - use std::cell::Cell; const FOO: &(Cell<usize>, bool) = { diff --git a/src/test/ui/consts/partial_qualif.stderr b/src/test/ui/consts/partial_qualif.stderr index d695f64e2c3..967fb83b78b 100644 --- a/src/test/ui/consts/partial_qualif.stderr +++ b/src/test/ui/consts/partial_qualif.stderr @@ -1,5 +1,5 @@ error[E0492]: cannot borrow a constant which may contain interior mutability, create a static instead - --> $DIR/partial_qualif.rs:8:5 + --> $DIR/partial_qualif.rs:6:5 | LL | &{a} //~ ERROR cannot borrow a constant which may contain interior mutability | ^^^^ diff --git a/src/test/ui/consts/projection_qualif.rs b/src/test/ui/consts/projection_qualif.rs index 5863429a2f2..dedb7db5920 100644 --- a/src/test/ui/consts/projection_qualif.rs +++ b/src/test/ui/consts/projection_qualif.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - use std::cell::Cell; const FOO: &u32 = { diff --git a/src/test/ui/consts/projection_qualif.stderr b/src/test/ui/consts/projection_qualif.stderr index cc3635a979b..410c51c4b54 100644 --- a/src/test/ui/consts/projection_qualif.stderr +++ b/src/test/ui/consts/projection_qualif.stderr @@ -1,17 +1,17 @@ error[E0017]: references in constants may only refer to immutable values - --> $DIR/projection_qualif.rs:8:27 + --> $DIR/projection_qualif.rs:6:27 | LL | let b: *mut u32 = &mut a; //~ ERROR may only refer to immutable values | ^^^^^^ constants require immutable values error[E0019]: constant contains unimplemented expression type - --> $DIR/projection_qualif.rs:9:18 + --> $DIR/projection_qualif.rs:7:18 | LL | unsafe { *b = 5; } //~ ERROR dereferencing raw pointers in constants | ^^^^^^ error[E0658]: dereferencing raw pointers in constants is unstable (see issue #51911) - --> $DIR/projection_qualif.rs:9:18 + --> $DIR/projection_qualif.rs:7:18 | LL | unsafe { *b = 5; } //~ ERROR dereferencing raw pointers in constants | ^^^^^^ diff --git a/src/test/ui/consts/promote_const_let.nll.stderr b/src/test/ui/consts/promote_const_let.nll.stderr index d8749bb5fd9..e6ee1523a3b 100644 --- a/src/test/ui/consts/promote_const_let.nll.stderr +++ b/src/test/ui/consts/promote_const_let.nll.stderr @@ -1,5 +1,5 @@ error[E0597]: `y` does not live long enough - --> $DIR/promote_const_let.rs:6:9 + --> $DIR/promote_const_let.rs:4:9 | LL | let x: &'static u32 = { | ------------ type annotation requires that `y` is borrowed for `'static` @@ -9,6 +9,21 @@ LL | &y //~ ERROR does not live long enough LL | }; | - `y` dropped here while still borrowed -error: aborting due to previous error +error[E0716]: temporary value dropped while borrowed + --> $DIR/promote_const_let.rs:6:28 + | +LL | let x: &'static u32 = &{ //~ ERROR does not live long enough + | ____________------------____^ + | | | + | | type annotation requires that borrow lasts for `'static` +LL | | let y = 42; +LL | | y +LL | | }; + | |_____^ creates a temporary which is freed while still in use +LL | } + | - temporary value is freed at the end of this statement + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0597`. +Some errors occurred: E0597, E0716. +For more information about an error, try `rustc --explain E0597`. diff --git a/src/test/ui/consts/promote_const_let.rs b/src/test/ui/consts/promote_const_let.rs index 8de9b00eb11..a8a6d4d99c6 100644 --- a/src/test/ui/consts/promote_const_let.rs +++ b/src/test/ui/consts/promote_const_let.rs @@ -1,8 +1,10 @@ -#![feature(const_let)] - fn main() { let x: &'static u32 = { let y = 42; &y //~ ERROR does not live long enough }; + let x: &'static u32 = &{ //~ ERROR does not live long enough + let y = 42; + y + }; } diff --git a/src/test/ui/consts/promote_const_let.stderr b/src/test/ui/consts/promote_const_let.stderr index 6bbb7495fb0..d37bd491860 100644 --- a/src/test/ui/consts/promote_const_let.stderr +++ b/src/test/ui/consts/promote_const_let.stderr @@ -1,5 +1,5 @@ error[E0597]: `y` does not live long enough - --> $DIR/promote_const_let.rs:6:10 + --> $DIR/promote_const_let.rs:4:10 | LL | &y //~ ERROR does not live long enough | ^ borrowed value does not live long enough @@ -8,6 +8,20 @@ LL | }; | = note: borrowed value must be valid for the static lifetime... -error: aborting due to previous error +error[E0597]: borrowed value does not live long enough + --> $DIR/promote_const_let.rs:6:28 + | +LL | let x: &'static u32 = &{ //~ ERROR does not live long enough + | ____________________________^ +LL | | let y = 42; +LL | | y +LL | | }; + | |_____^ temporary value does not live long enough +LL | } + | - temporary value only lives until here + | + = note: borrowed value must be valid for the static lifetime... + +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0597`. diff --git a/src/test/ui/consts/qualif_overwrite.rs b/src/test/ui/consts/qualif_overwrite.rs index 806a74ee453..430eea37de7 100644 --- a/src/test/ui/consts/qualif_overwrite.rs +++ b/src/test/ui/consts/qualif_overwrite.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - use std::cell::Cell; // this is overly conservative. The reset to `None` should clear `a` of all qualifications diff --git a/src/test/ui/consts/qualif_overwrite.stderr b/src/test/ui/consts/qualif_overwrite.stderr index 4fac64bf806..30479139e31 100644 --- a/src/test/ui/consts/qualif_overwrite.stderr +++ b/src/test/ui/consts/qualif_overwrite.stderr @@ -1,5 +1,5 @@ error[E0492]: cannot borrow a constant which may contain interior mutability, create a static instead - --> $DIR/qualif_overwrite.rs:12:5 + --> $DIR/qualif_overwrite.rs:10:5 | LL | &{a} //~ ERROR cannot borrow a constant which may contain interior mutability | ^^^^ diff --git a/src/test/ui/consts/qualif_overwrite_2.rs b/src/test/ui/consts/qualif_overwrite_2.rs index 29557a3da47..fa79b5c14a7 100644 --- a/src/test/ui/consts/qualif_overwrite_2.rs +++ b/src/test/ui/consts/qualif_overwrite_2.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - use std::cell::Cell; // const qualification is not smart enough to know about fields and always assumes that there might diff --git a/src/test/ui/consts/qualif_overwrite_2.stderr b/src/test/ui/consts/qualif_overwrite_2.stderr index 181b728c7b7..8276db99a12 100644 --- a/src/test/ui/consts/qualif_overwrite_2.stderr +++ b/src/test/ui/consts/qualif_overwrite_2.stderr @@ -1,5 +1,5 @@ error[E0492]: cannot borrow a constant which may contain interior mutability, create a static instead - --> $DIR/qualif_overwrite_2.rs:10:5 + --> $DIR/qualif_overwrite_2.rs:8:5 | LL | &{a.0} //~ ERROR cannot borrow a constant which may contain interior mutability | ^^^^^^ diff --git a/src/test/ui/consts/static_mut_containing_mut_ref2.rs b/src/test/ui/consts/static_mut_containing_mut_ref2.rs index 4180b1e295a..ef378fa8451 100644 --- a/src/test/ui/consts/static_mut_containing_mut_ref2.rs +++ b/src/test/ui/consts/static_mut_containing_mut_ref2.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - static mut STDERR_BUFFER_SPACE: u8 = 0; pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; }; diff --git a/src/test/ui/consts/static_mut_containing_mut_ref2.stderr b/src/test/ui/consts/static_mut_containing_mut_ref2.stderr index f0ae1545056..72186571d69 100644 --- a/src/test/ui/consts/static_mut_containing_mut_ref2.stderr +++ b/src/test/ui/consts/static_mut_containing_mut_ref2.stderr @@ -1,11 +1,11 @@ error[E0017]: references in statics may only refer to immutable values - --> $DIR/static_mut_containing_mut_ref2.rs:5:46 + --> $DIR/static_mut_containing_mut_ref2.rs:3:46 | LL | pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ statics require immutable values error[E0019]: static contains unimplemented expression type - --> $DIR/static_mut_containing_mut_ref2.rs:5:45 + --> $DIR/static_mut_containing_mut_ref2.rs:3:45 | LL | pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/consts/static_mut_containing_mut_ref3.rs b/src/test/ui/consts/static_mut_containing_mut_ref3.rs index 0bc7faa9afd..c24c7e27920 100644 --- a/src/test/ui/consts/static_mut_containing_mut_ref3.rs +++ b/src/test/ui/consts/static_mut_containing_mut_ref3.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - static mut FOO: (u8, u8) = (42, 43); static mut BAR: () = unsafe { FOO.0 = 99; }; diff --git a/src/test/ui/consts/static_mut_containing_mut_ref3.stderr b/src/test/ui/consts/static_mut_containing_mut_ref3.stderr index cae53c6fee9..e88e49b097a 100644 --- a/src/test/ui/consts/static_mut_containing_mut_ref3.stderr +++ b/src/test/ui/consts/static_mut_containing_mut_ref3.stderr @@ -1,5 +1,5 @@ error[E0080]: could not evaluate static initializer - --> $DIR/static_mut_containing_mut_ref3.rs:5:31 + --> $DIR/static_mut_containing_mut_ref3.rs:3:31 | LL | static mut BAR: () = unsafe { FOO.0 = 99; }; | ^^^^^^^^^^ tried to modify a static's initial value from another static's initializer diff --git a/src/test/ui/error-codes/E0010-teach.rs b/src/test/ui/error-codes/E0010-teach.rs index fc5dffb37cf..da51035ab55 100644 --- a/src/test/ui/error-codes/E0010-teach.rs +++ b/src/test/ui/error-codes/E0010-teach.rs @@ -4,5 +4,6 @@ #![allow(warnings)] const CON : Box<i32> = box 0; //~ ERROR E0010 +//~^ ERROR constant contains unimplemented expression type fn main() {} diff --git a/src/test/ui/error-codes/E0010-teach.stderr b/src/test/ui/error-codes/E0010-teach.stderr index da0aadfded5..77e7b5ec0e8 100644 --- a/src/test/ui/error-codes/E0010-teach.stderr +++ b/src/test/ui/error-codes/E0010-teach.stderr @@ -6,6 +6,16 @@ LL | const CON : Box<i32> = box 0; //~ ERROR E0010 | = note: The value of statics and constants must be known at compile time, and they live for the entire lifetime of a program. Creating a boxed value allocates memory on the heap at runtime, and therefore cannot be done at compile time. -error: aborting due to previous error +error[E0019]: constant contains unimplemented expression type + --> $DIR/E0010-teach.rs:6:28 + | +LL | const CON : Box<i32> = box 0; //~ ERROR E0010 + | ^ + | + = note: A function call isn't allowed in the const's initialization expression because the expression's value must be known at compile-time. + = note: Remember: you can't use a function call inside a const's initialization expression! However, you can use it anywhere else. + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0010`. +Some errors occurred: E0010, E0019. +For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/error-codes/E0010.rs b/src/test/ui/error-codes/E0010.rs index e62997640f4..3398e2c28ba 100644 --- a/src/test/ui/error-codes/E0010.rs +++ b/src/test/ui/error-codes/E0010.rs @@ -2,5 +2,6 @@ #![allow(warnings)] const CON : Box<i32> = box 0; //~ ERROR E0010 +//~^ ERROR constant contains unimplemented expression type fn main() {} diff --git a/src/test/ui/error-codes/E0010.stderr b/src/test/ui/error-codes/E0010.stderr index b4b490922c4..1364693109e 100644 --- a/src/test/ui/error-codes/E0010.stderr +++ b/src/test/ui/error-codes/E0010.stderr @@ -4,6 +4,13 @@ error[E0010]: allocations are not allowed in constants LL | const CON : Box<i32> = box 0; //~ ERROR E0010 | ^^^^^ allocation not allowed in constants -error: aborting due to previous error +error[E0019]: constant contains unimplemented expression type + --> $DIR/E0010.rs:4:28 + | +LL | const CON : Box<i32> = box 0; //~ ERROR E0010 + | ^ + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0010`. +Some errors occurred: E0010, E0019. +For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/feature-gates/feature-gate-const_let.rs b/src/test/ui/feature-gates/feature-gate-const_let.rs deleted file mode 100644 index 74cefd7c067..00000000000 --- a/src/test/ui/feature-gates/feature-gate-const_let.rs +++ /dev/null @@ -1,21 +0,0 @@ -// Test use of const let without feature gate. - -const FOO: usize = { - //~^ ERROR statements in constants are unstable - //~| ERROR: let bindings in constants are unstable - let x = 42; - //~^ ERROR statements in constants are unstable - //~| ERROR: let bindings in constants are unstable - 42 -}; - -static BAR: usize = { - //~^ ERROR statements in statics are unstable - //~| ERROR: let bindings in statics are unstable - let x = 42; - //~^ ERROR statements in statics are unstable - //~| ERROR: let bindings in statics are unstable - 42 -}; - -fn main() {} diff --git a/src/test/ui/feature-gates/feature-gate-const_let.stderr b/src/test/ui/feature-gates/feature-gate-const_let.stderr deleted file mode 100644 index 56312999a5f..00000000000 --- a/src/test/ui/feature-gates/feature-gate-const_let.stderr +++ /dev/null @@ -1,91 +0,0 @@ -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:6:13 - | -LL | let x = 42; - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:6:13 - | -LL | let x = 42; - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:3:1 - | -LL | / const FOO: usize = { -LL | | //~^ ERROR statements in constants are unstable -LL | | //~| ERROR: let bindings in constants are unstable -LL | | let x = 42; -... | -LL | | 42 -LL | | }; - | |__^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:3:1 - | -LL | / const FOO: usize = { -LL | | //~^ ERROR statements in constants are unstable -LL | | //~| ERROR: let bindings in constants are unstable -LL | | let x = 42; -... | -LL | | 42 -LL | | }; - | |__^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in statics are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:15:13 - | -LL | let x = 42; - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:15:13 - | -LL | let x = 42; - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in statics are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:12:1 - | -LL | / static BAR: usize = { -LL | | //~^ ERROR statements in statics are unstable -LL | | //~| ERROR: let bindings in statics are unstable -LL | | let x = 42; -... | -LL | | 42 -LL | | }; - | |__^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/feature-gate-const_let.rs:12:1 - | -LL | / static BAR: usize = { -LL | | //~^ ERROR statements in statics are unstable -LL | | //~| ERROR: let bindings in statics are unstable -LL | | let x = 42; -... | -LL | | 42 -LL | | }; - | |__^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 8 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/feature-gates/feature-gate-underscore_const_names.rs b/src/test/ui/feature-gates/feature-gate-underscore_const_names.rs index a82b356c752..6b97c24a47e 100644 --- a/src/test/ui/feature-gates/feature-gate-underscore_const_names.rs +++ b/src/test/ui/feature-gates/feature-gate-underscore_const_names.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - trait Trt {} struct Str {} diff --git a/src/test/ui/feature-gates/feature-gate-underscore_const_names.stderr b/src/test/ui/feature-gates/feature-gate-underscore_const_names.stderr index b3658208828..d608f3d37cf 100644 --- a/src/test/ui/feature-gates/feature-gate-underscore_const_names.stderr +++ b/src/test/ui/feature-gates/feature-gate-underscore_const_names.stderr @@ -1,5 +1,5 @@ error[E0658]: naming constants with `_` is unstable (see issue #54912) - --> $DIR/feature-gate-underscore_const_names.rs:8:1 + --> $DIR/feature-gate-underscore_const_names.rs:6:1 | LL | / const _ : () = { LL | | //~^ ERROR is unstable diff --git a/src/test/ui/issues/issue-18118.nll.stderr b/src/test/ui/issues/issue-18118.nll.stderr index d3084b06167..1920e1637d1 100644 --- a/src/test/ui/issues/issue-18118.nll.stderr +++ b/src/test/ui/issues/issue-18118.nll.stderr @@ -1,68 +1,14 @@ -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:5:17 - | -LL | let p = 3; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:5:17 - | -LL | let p = 3; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:8:9 - | -LL | &p //~ ERROR `p` does not live long enough - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:2:5 - | -LL | / const z: &'static isize = { -LL | | //~^ ERROR let bindings in constants are unstable -LL | | //~| ERROR statements in constants are unstable -LL | | let p = 3; -... | -LL | | //~^ ERROR let bindings in constants are unstable -LL | | }; - | |______^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:2:5 - | -LL | / const z: &'static isize = { -LL | | //~^ ERROR let bindings in constants are unstable -LL | | //~| ERROR statements in constants are unstable -LL | | let p = 3; -... | -LL | | //~^ ERROR let bindings in constants are unstable -LL | | }; - | |______^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - error[E0597]: `p` does not live long enough - --> $DIR/issue-18118.rs:8:9 + --> $DIR/issue-18118.rs:4:9 | LL | &p //~ ERROR `p` does not live long enough | ^^ | | | borrowed value does not live long enough | using this value as a constant requires that `p` is borrowed for `'static` -LL | //~^ ERROR let bindings in constants are unstable LL | }; | - `p` dropped here while still borrowed -error: aborting due to 6 previous errors +error: aborting due to previous error -Some errors occurred: E0597, E0658. -For more information about an error, try `rustc --explain E0597`. +For more information about this error, try `rustc --explain E0597`. diff --git a/src/test/ui/issues/issue-18118.rs b/src/test/ui/issues/issue-18118.rs index 7bbea191cd1..f58a3de281f 100644 --- a/src/test/ui/issues/issue-18118.rs +++ b/src/test/ui/issues/issue-18118.rs @@ -1,11 +1,6 @@ pub fn main() { const z: &'static isize = { - //~^ ERROR let bindings in constants are unstable - //~| ERROR statements in constants are unstable let p = 3; - //~^ ERROR let bindings in constants are unstable - //~| ERROR statements in constants are unstable &p //~ ERROR `p` does not live long enough - //~^ ERROR let bindings in constants are unstable }; } diff --git a/src/test/ui/issues/issue-18118.stderr b/src/test/ui/issues/issue-18118.stderr index 1383cdb4438..9b21ece341a 100644 --- a/src/test/ui/issues/issue-18118.stderr +++ b/src/test/ui/issues/issue-18118.stderr @@ -1,67 +1,13 @@ -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:5:17 - | -LL | let p = 3; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:5:17 - | -LL | let p = 3; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:8:9 - | -LL | &p //~ ERROR `p` does not live long enough - | ^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: let bindings in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:2:5 - | -LL | / const z: &'static isize = { -LL | | //~^ ERROR let bindings in constants are unstable -LL | | //~| ERROR statements in constants are unstable -LL | | let p = 3; -... | -LL | | //~^ ERROR let bindings in constants are unstable -LL | | }; - | |______^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-18118.rs:2:5 - | -LL | / const z: &'static isize = { -LL | | //~^ ERROR let bindings in constants are unstable -LL | | //~| ERROR statements in constants are unstable -LL | | let p = 3; -... | -LL | | //~^ ERROR let bindings in constants are unstable -LL | | }; - | |______^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - error[E0597]: `p` does not live long enough - --> $DIR/issue-18118.rs:8:10 + --> $DIR/issue-18118.rs:4:10 | LL | &p //~ ERROR `p` does not live long enough | ^ borrowed value does not live long enough -LL | //~^ ERROR let bindings in constants are unstable LL | }; | - borrowed value only lives until here | = note: borrowed value must be valid for the static lifetime... -error: aborting due to 6 previous errors +error: aborting due to previous error -Some errors occurred: E0597, E0658. -For more information about an error, try `rustc --explain E0597`. +For more information about this error, try `rustc --explain E0597`. diff --git a/src/test/ui/issues/issue-32829-2.rs b/src/test/ui/issues/issue-32829-2.rs index 9db9d30411d..c93c84b5fb7 100644 --- a/src/test/ui/issues/issue-32829-2.rs +++ b/src/test/ui/issues/issue-32829-2.rs @@ -1,11 +1,8 @@ // ignore-tidy-linelength -#![feature(const_fn)] - const bad : u32 = { { 5; - //~^ ERROR statements in constants are unstable 0 } }; @@ -13,8 +10,7 @@ const bad : u32 = { const bad_two : u32 = { { invalid(); - //~^ ERROR statements in constants are unstable - //~^^ ERROR: calls in constants are limited to constant functions, tuple structs and tuple variants + //~^ ERROR: calls in constants are limited to constant functions, tuple structs and tuple variants 0 } }; @@ -22,7 +18,6 @@ const bad_two : u32 = { const bad_three : u32 = { { valid(); - //~^ ERROR statements in constants are unstable 0 } }; @@ -30,7 +25,6 @@ const bad_three : u32 = { static bad_four : u32 = { { 5; - //~^ ERROR statements in statics are unstable 0 } }; @@ -39,7 +33,6 @@ static bad_five : u32 = { { invalid(); //~^ ERROR: calls in statics are limited to constant functions, tuple structs and tuple variants - //~| ERROR statements in statics are unstable 0 } }; @@ -47,7 +40,6 @@ static bad_five : u32 = { static bad_six : u32 = { { valid(); - //~^ ERROR statements in statics are unstable 0 } }; @@ -55,7 +47,6 @@ static bad_six : u32 = { static mut bad_seven : u32 = { { 5; - //~^ ERROR statements in statics are unstable 0 } }; @@ -63,8 +54,7 @@ static mut bad_seven : u32 = { static mut bad_eight : u32 = { { invalid(); - //~^ ERROR statements in statics are unstable - //~| ERROR: calls in statics are limited to constant functions, tuple structs and tuple variants + //~^ ERROR: calls in statics are limited to constant functions, tuple structs and tuple variants 0 } }; @@ -72,7 +62,6 @@ static mut bad_eight : u32 = { static mut bad_nine : u32 = { { valid(); - //~^ ERROR statements in statics are unstable 0 } }; diff --git a/src/test/ui/issues/issue-32829-2.stderr b/src/test/ui/issues/issue-32829-2.stderr index 7fe02612818..8d7423f29ae 100644 --- a/src/test/ui/issues/issue-32829-2.stderr +++ b/src/test/ui/issues/issue-32829-2.stderr @@ -1,94 +1,21 @@ -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:7:9 - | -LL | 5; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - error[E0015]: calls in constants are limited to constant functions, tuple structs and tuple variants - --> $DIR/issue-32829-2.rs:15:9 + --> $DIR/issue-32829-2.rs:12:9 | LL | invalid(); | ^^^^^^^^^ -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:15:9 - | -LL | invalid(); - | ^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in constants are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:24:9 - | -LL | valid(); - | ^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:32:9 - | -LL | 5; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants - --> $DIR/issue-32829-2.rs:40:9 + --> $DIR/issue-32829-2.rs:34:9 | LL | invalid(); | ^^^^^^^^^ -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:40:9 - | -LL | invalid(); - | ^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:49:9 - | -LL | valid(); - | ^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:57:9 - | -LL | 5; - | ^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants - --> $DIR/issue-32829-2.rs:65:9 + --> $DIR/issue-32829-2.rs:56:9 | LL | invalid(); | ^^^^^^^^^ -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:65:9 - | -LL | invalid(); - | ^^^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error[E0658]: statements in statics are unstable (see issue #48821) - --> $DIR/issue-32829-2.rs:74:9 - | -LL | valid(); - | ^^^^^^^ - | - = help: add #![feature(const_let)] to the crate attributes to enable - -error: aborting due to 12 previous errors +error: aborting due to 3 previous errors -Some errors occurred: E0015, E0658. -For more information about an error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0015`. diff --git a/src/test/ui/issues/issue-37550.rs b/src/test/ui/issues/issue-37550.rs index 12282f3e548..505c030b967 100644 --- a/src/test/ui/issues/issue-37550.rs +++ b/src/test/ui/issues/issue-37550.rs @@ -1,6 +1,6 @@ const fn x() { - let t = true; //~ ERROR local variables in const fn - let x = || t; + let t = true; + let x = || t; //~ ERROR function pointers in const fn are unstable } fn main() {} diff --git a/src/test/ui/issues/issue-37550.stderr b/src/test/ui/issues/issue-37550.stderr index d42f72ad3fa..d2b03416cb7 100644 --- a/src/test/ui/issues/issue-37550.stderr +++ b/src/test/ui/issues/issue-37550.stderr @@ -1,7 +1,7 @@ -error: local variables in const fn are unstable - --> $DIR/issue-37550.rs:2:9 +error: function pointers in const fn are unstable + --> $DIR/issue-37550.rs:3:9 | -LL | let t = true; //~ ERROR local variables in const fn +LL | let x = || t; //~ ERROR function pointers in const fn are unstable | ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-7364.rs b/src/test/ui/issues/issue-7364.rs index 3f9c2ef48a7..52ec9e42be7 100644 --- a/src/test/ui/issues/issue-7364.rs +++ b/src/test/ui/issues/issue-7364.rs @@ -6,5 +6,6 @@ use std::cell::RefCell; static boxed: Box<RefCell<isize>> = box RefCell::new(0); //~^ ERROR allocations are not allowed in statics //~| ERROR `std::cell::RefCell<isize>` cannot be shared between threads safely [E0277] +//~| ERROR static contains unimplemented expression type fn main() { } diff --git a/src/test/ui/issues/issue-7364.stderr b/src/test/ui/issues/issue-7364.stderr index 0e4d6ff1d71..52a99ce36b8 100644 --- a/src/test/ui/issues/issue-7364.stderr +++ b/src/test/ui/issues/issue-7364.stderr @@ -4,6 +4,12 @@ error[E0010]: allocations are not allowed in statics LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0); | ^^^^^^^^^^^^^^^^^^^ allocation not allowed in statics +error[E0019]: static contains unimplemented expression type + --> $DIR/issue-7364.rs:6:41 + | +LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0); + | ^^^^^^^^^^^^^^^ + error[E0277]: `std::cell::RefCell<isize>` cannot be shared between threads safely --> $DIR/issue-7364.rs:6:1 | @@ -15,7 +21,7 @@ LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0); = note: required because it appears within the type `std::boxed::Box<std::cell::RefCell<isize>>` = note: shared static variables must have a type that implements `Sync` -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors -Some errors occurred: E0010, E0277. +Some errors occurred: E0010, E0019, E0277. For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/static/static-mut-not-constant.rs b/src/test/ui/static/static-mut-not-constant.rs index 2091fffd418..84d401c9fa6 100644 --- a/src/test/ui/static/static-mut-not-constant.rs +++ b/src/test/ui/static/static-mut-not-constant.rs @@ -2,5 +2,6 @@ static mut a: Box<isize> = box 3; //~^ ERROR allocations are not allowed in statics +//~| ERROR static contains unimplemented expression type fn main() {} diff --git a/src/test/ui/static/static-mut-not-constant.stderr b/src/test/ui/static/static-mut-not-constant.stderr index a0fa245156f..d2c6ba6a2f8 100644 --- a/src/test/ui/static/static-mut-not-constant.stderr +++ b/src/test/ui/static/static-mut-not-constant.stderr @@ -4,6 +4,13 @@ error[E0010]: allocations are not allowed in statics LL | static mut a: Box<isize> = box 3; | ^^^^^ allocation not allowed in statics -error: aborting due to previous error +error[E0019]: static contains unimplemented expression type + --> $DIR/static-mut-not-constant.rs:3:32 + | +LL | static mut a: Box<isize> = box 3; + | ^ + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0010`. +Some errors occurred: E0010, E0019. +For more information about an error, try `rustc --explain E0010`. diff --git a/src/test/ui/underscore_const_names.rs b/src/test/ui/underscore_const_names.rs index 811d166ed65..1db022e8862 100644 --- a/src/test/ui/underscore_const_names.rs +++ b/src/test/ui/underscore_const_names.rs @@ -1,6 +1,5 @@ // compile-pass -#![feature(const_let)] #![feature(underscore_const_names)] trait Trt {} diff --git a/src/test/ui/unsafe/ranged_ints2_const.rs b/src/test/ui/unsafe/ranged_ints2_const.rs index a61e3329bdc..788f49f743c 100644 --- a/src/test/ui/unsafe/ranged_ints2_const.rs +++ b/src/test/ui/unsafe/ranged_ints2_const.rs @@ -1,4 +1,4 @@ -#![feature(rustc_attrs, const_let, const_fn)] +#![feature(rustc_attrs)] #[rustc_layout_scalar_valid_range_start(1)] #[repr(transparent)] @@ -8,13 +8,13 @@ fn main() { const fn foo() -> NonZero<u32> { let mut x = unsafe { NonZero(1) }; - let y = &mut x.0; //~ ERROR references in constant functions may only refer to immutable + let y = &mut x.0; //~ ERROR references in const fn are unstable //~^ ERROR mutation of layout constrained field is unsafe unsafe { NonZero(1) } } const fn bar() -> NonZero<u32> { let mut x = unsafe { NonZero(1) }; - let y = unsafe { &mut x.0 }; //~ ERROR references in constant functions may only refer to immut + let y = unsafe { &mut x.0 }; //~ ERROR mutable references in const fn are unstable unsafe { NonZero(1) } } diff --git a/src/test/ui/unsafe/ranged_ints2_const.stderr b/src/test/ui/unsafe/ranged_ints2_const.stderr index f79792ffba9..39a55190b17 100644 --- a/src/test/ui/unsafe/ranged_ints2_const.stderr +++ b/src/test/ui/unsafe/ranged_ints2_const.stderr @@ -1,24 +1,23 @@ -error[E0017]: references in constant functions may only refer to immutable values - --> $DIR/ranged_ints2_const.rs:11:13 +error: mutable references in const fn are unstable + --> $DIR/ranged_ints2_const.rs:11:9 | -LL | let y = &mut x.0; //~ ERROR references in constant functions may only refer to immutable - | ^^^^^^^^ constant functions require immutable values +LL | let y = &mut x.0; //~ ERROR references in const fn are unstable + | ^ -error[E0017]: references in constant functions may only refer to immutable values - --> $DIR/ranged_ints2_const.rs:18:22 +error: mutable references in const fn are unstable + --> $DIR/ranged_ints2_const.rs:18:9 | -LL | let y = unsafe { &mut x.0 }; //~ ERROR references in constant functions may only refer to immut - | ^^^^^^^^ constant functions require immutable values +LL | let y = unsafe { &mut x.0 }; //~ ERROR mutable references in const fn are unstable + | ^ error[E0133]: mutation of layout constrained field is unsafe and requires unsafe function or block --> $DIR/ranged_ints2_const.rs:11:13 | -LL | let y = &mut x.0; //~ ERROR references in constant functions may only refer to immutable +LL | let y = &mut x.0; //~ ERROR references in const fn are unstable | ^^^^^^^^ mutation of layout constrained field | = note: mutating layout constrained fields cannot statically be checked for valid values error: aborting due to 3 previous errors -Some errors occurred: E0017, E0133. -For more information about an error, try `rustc --explain E0017`. +For more information about this error, try `rustc --explain E0133`. diff --git a/src/test/ui/unsafe/ranged_ints3_const.rs b/src/test/ui/unsafe/ranged_ints3_const.rs index 6497b611224..7b03d8eda93 100644 --- a/src/test/ui/unsafe/ranged_ints3_const.rs +++ b/src/test/ui/unsafe/ranged_ints3_const.rs @@ -1,4 +1,4 @@ -#![feature(rustc_attrs, const_let, const_fn)] +#![feature(rustc_attrs)] use std::cell::Cell; diff --git a/src/test/ui/unsafe/ranged_ints4_const.rs b/src/test/ui/unsafe/ranged_ints4_const.rs index f589e4739ba..f09168c3d3f 100644 --- a/src/test/ui/unsafe/ranged_ints4_const.rs +++ b/src/test/ui/unsafe/ranged_ints4_const.rs @@ -1,4 +1,4 @@ -#![feature(rustc_attrs, const_let, const_fn)] +#![feature(rustc_attrs)] #[rustc_layout_scalar_valid_range_start(1)] #[repr(transparent)] diff --git a/src/test/ui/write-to-static-mut-in-static.rs b/src/test/ui/write-to-static-mut-in-static.rs index 3c34a7704e0..43c63fed8ce 100644 --- a/src/test/ui/write-to-static-mut-in-static.rs +++ b/src/test/ui/write-to-static-mut-in-static.rs @@ -1,5 +1,3 @@ -#![feature(const_let)] - pub static mut A: u32 = 0; pub static mut B: () = unsafe { A = 1; }; //~^ ERROR could not evaluate static initializer diff --git a/src/test/ui/write-to-static-mut-in-static.stderr b/src/test/ui/write-to-static-mut-in-static.stderr index 7be83b8dafc..eba1c609d2f 100644 --- a/src/test/ui/write-to-static-mut-in-static.stderr +++ b/src/test/ui/write-to-static-mut-in-static.stderr @@ -1,23 +1,23 @@ error[E0080]: could not evaluate static initializer - --> $DIR/write-to-static-mut-in-static.rs:4:33 + --> $DIR/write-to-static-mut-in-static.rs:2:33 | LL | pub static mut B: () = unsafe { A = 1; }; | ^^^^^ tried to modify a static's initial value from another static's initializer error[E0391]: cycle detected when const-evaluating `C` - --> $DIR/write-to-static-mut-in-static.rs:7:34 + --> $DIR/write-to-static-mut-in-static.rs:5:34 | LL | pub static mut C: u32 = unsafe { C = 1; 0 }; | ^^^^^ | note: ...which requires const-evaluating `C`... - --> $DIR/write-to-static-mut-in-static.rs:7:1 + --> $DIR/write-to-static-mut-in-static.rs:5:1 | LL | pub static mut C: u32 = unsafe { C = 1; 0 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: ...which again requires const-evaluating `C`, completing the cycle note: cycle used when const-evaluating + checking `C` - --> $DIR/write-to-static-mut-in-static.rs:7:1 + --> $DIR/write-to-static-mut-in-static.rs:5:1 | LL | pub static mut C: u32 = unsafe { C = 1; 0 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |