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Reduce special casing in the const pretty printer

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This commit is contained in:
Oliver Scherer 2020-02-10 15:36:14 +01:00
parent e22ddfd80d
commit b837e71732
2 changed files with 6 additions and 12 deletions
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12
src/librustc/ty/print/pretty.rs
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@ -937,7 +937,6 @@ pub trait PrettyPrinter<'tcx>:
// Bool
(Scalar::Raw { data: 0, .. }, ty::Bool) => p!(write("false")),
(Scalar::Raw { data: 1, .. }, ty::Bool) => p!(write("true")),
(Scalar::Raw { data, .. }, ty::Bool) => p!(write("{}_bool", data)),
// Float
(Scalar::Raw { data, .. }, ty::Float(ast::FloatTy::F32)) => {
p!(write("{}f32", Single::from_bits(data)))
@ -975,14 +974,9 @@ pub trait PrettyPrinter<'tcx>:
Some(c) => p!(write("{:?}", c)),
None => p!(write("{}_char", data)),
},
// References and pointers
(Scalar::Raw { data: 0, .. }, ty::RawPtr(_)) => p!(write("{{null pointer}}")),
// This is UB, but we still print it
(Scalar::Raw { data: 0, .. }, ty::Ref(_, ty, _)) => {
p!(write("{{null reference to "), print(ty), write("}}"))
}
(Scalar::Raw { data, .. }, ty::Ref(..)) | (Scalar::Raw { data, .. }, ty::RawPtr(_)) => {
p!(write("0x{:x}", data))
// Raw pointers
(Scalar::Raw { data, .. }, ty::RawPtr(_)) => {
p!(write("{{0x{:x} as ", data), print(ty), write("}}"))
}
(Scalar::Ptr(ptr), ty::FnPtr(_)) => {
let instance = {

6
src/test/ui/const-generics/raw-ptr-const-param.stderr
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@ -10,12 +10,12 @@ error[E0308]: mismatched types
--> $DIR/raw-ptr-const-param.rs:7:40
|
LL | let _: Const<{ 15 as *const _ }> = Const::<{ 10 as *const _ }>;
| ------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `0xf`, found `0xa`
| ------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{0xf as *const u32}`, found `{0xa as *const u32}`
| |
| expected due to this
|
= note: expected struct `Const<0xf>`
found struct `Const<0xa>`
= note: expected struct `Const<{0xf as *const u32}>`
found struct `Const<{0xa as *const u32}>`
error: aborting due to previous error