internal compiler error with impl Aaa for &mut Aaa

Code:

trait Aaa {}

impl<'a> Aaa for &'a mut Aaa + 'a {}

struct Bar<'a> {
    writer: &'a mut Aaa + 'a,
}

fn baz(_: &mut Aaa) {
}

fn foo<'a>(mut bar: Bar<'a>) {
    baz(&mut bar.writer);
}

fn main() {
}

error: internal compiler error: trying to take the sizing type of Aaa+'a, an unsized type

@stepancheg

@stepancheg Can you check if this is the same issue as #17351 ?

@nodakai

@nodakai I don't know, looks similar.

Added parenthesis as per PR #19298 and then it compiled fine.

trait Aaa {}

impl<'a> Aaa for &'a mut (Aaa + 'a) {}

struct Bar<'a> {
    writer: &'a mut (Aaa + 'a),
}

fn baz(_: &mut Aaa) {
}

fn foo<'a>(mut bar: Bar<'a>) {
    baz(&mut bar.writer);
}

fn main() {
}

rollup merge of rust-lang#19780: jakub-/e-needstest

Auto merge of rust-lang#17771 - Veykril:parallel-vfs-config, r=Veykril

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internal compiler error with impl Aaa for &mut Aaa #17771

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internal compiler error with impl Aaa for &mut Aaa #17771

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nodakai commented on Oct 5, 2014

stepancheg commented on Oct 5, 2014

nodakai commented on Nov 28, 2014

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