use rustc::hir;
use rustc::mir::*;
use rustc::ty;
+use rustc_data_structures::indexed_vec::Idx;
use rustc_errors::DiagnosticBuilder;
use syntax_pos::Span;
IllegalMoveOriginKind::Static => {
self.tcx.cannot_move_out_of(span, "static item", origin)
}
- IllegalMoveOriginKind::BorrowedContent { target_ty: ty } => {
+ IllegalMoveOriginKind::BorrowedContent { target_place: place } => {
// Inspect the type of the content behind the
// borrow to provide feedback about why this
// was a move rather than a copy.
+ let ty = place.ty(self.mir, self.tcx).to_ty(self.tcx);
match ty.sty {
ty::TyArray(..) | ty::TySlice(..) => self
.tcx
.cannot_move_out_of_interior_noncopy(span, ty, None, origin),
+ ty::TyClosure(def_id, closure_substs)
+ if !self.mir.upvar_decls.is_empty()
+ && {
+ match place {
+ Place::Projection(ref proj) => {
+ proj.base == Place::Local(Local::new(1))
+ }
+ Place::Local(_) | Place::Static(_) => unreachable!(),
+ }
+ } =>
+ {
+ let closure_kind_ty =
+ closure_substs.closure_kind_ty(def_id, self.tcx);
+ let closure_kind = closure_kind_ty.to_opt_closure_kind();
+ let place_description = match closure_kind {
+ Some(ty::ClosureKind::Fn) => {
+ "captured variable in an `Fn` closure"
+ }
+ Some(ty::ClosureKind::FnMut) => {
+ "captured variable in an `FnMut` closure"
+ }
+ Some(ty::ClosureKind::FnOnce) => {
+ bug!("closure kind does not match first argument type")
+ }
+ None => bug!("closure kind not inferred by borrowck"),
+ };
+ self.tcx.cannot_move_out_of(span, place_description, origin)
+ }
_ => self
.tcx
.cannot_move_out_of(span, "borrowed content", origin),
let mir = self.builder.mir;
let tcx = self.builder.tcx;
let place_ty = proj.base.ty(mir, tcx).to_ty(tcx);
- match place_ty.sty {
+ match place_ty.sty {
ty::TyRef(..) | ty::TyRawPtr(..) =>
return Err(MoveError::cannot_move_out_of(
self.loc,
- BorrowedContent { target_ty: place.ty(mir, tcx).to_ty(tcx) })),
+ BorrowedContent { target_place: place.clone() })),
ty::TyAdt(adt, _) if adt.has_dtor(tcx) && !adt.is_box() =>
return Err(MoveError::cannot_move_out_of(self.loc,
InteriorOfTypeWithDestructor {
/// Illegal move due to attempt to move from behind a reference.
BorrowedContent {
- /// The content's type: if erroneous code was trying to move
- /// from `*x` where `x: &T`, then this will be `T`.
- target_ty: ty::Ty<'tcx>,
+ /// The place the reference refers to: if erroneous code was trying to
+ /// move from `(*x).f` this will be `*x`.
+ target_place: Place<'tcx>,
},
/// Illegal move due to attempt to move from field of an ADT that
-error[E0507]: cannot move out of borrowed content
+error[E0507]: cannot move out of captured variable in an `Fn` closure
--> $DIR/borrowck-in-static.rs:15:17
|
LL | Box::new(|| x) //~ ERROR cannot move out of captured outer variable
- | ^ cannot move out of borrowed content
+ | ^ cannot move out of captured variable in an `Fn` closure
error: aborting due to previous error
-error[E0507]: cannot move out of borrowed content
+error[E0507]: cannot move out of captured variable in an `Fn` closure
--> $DIR/unboxed-closures-move-upvar-from-non-once-ref-closure.rs:21:9
|
LL | y.into_iter();
- | ^ cannot move out of borrowed content
+ | ^ cannot move out of captured variable in an `Fn` closure
error: aborting due to previous error
+++ /dev/null
-error[E0507]: cannot move out of borrowed content
- --> $DIR/E0161.rs:14:28
- |
-LL | let _x: Box<str> = box *"hello"; //~ ERROR E0161
- | ^^^^^^^^ cannot move out of borrowed content
-
-error[E0161]: cannot move a value of type str: the size of str cannot be statically determined
- --> $DIR/E0161.rs:14:28
- |
-LL | let _x: Box<str> = box *"hello"; //~ ERROR E0161
- | ^^^^^^^^
-
-error: aborting due to 2 previous errors
-
-Some errors occurred: E0161, E0507.
-For more information about an error, try `rustc --explain E0161`.
-error[E0507]: cannot move out of borrowed content
+error[E0507]: cannot move out of captured variable in an `FnMut` closure
--> $DIR/issue-4335.rs:16:20
|
LL | id(Box::new(|| *v))
- | ^^ cannot move out of borrowed content
+ | ^^ cannot move out of captured variable in an `FnMut` closure
error[E0597]: `v` does not live long enough
--> $DIR/issue-4335.rs:16:17
LL | f.f.call_mut(())
| ^^^ `f` is a `&` reference, so the data it refers to cannot be borrowed as mutable
-error[E0507]: cannot move out of borrowed content
+error[E0507]: cannot move out of captured variable in an `FnMut` closure
--> $DIR/borrowck-call-is-borrow-issue-12224.rs:66:13
|
LL | foo(f);
- | ^ cannot move out of borrowed content
+ | ^ cannot move out of captured variable in an `FnMut` closure
error[E0505]: cannot move out of `f` because it is borrowed
--> $DIR/borrowck-call-is-borrow-issue-12224.rs:65:16