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Deduplicate pretty printing of constants #67133

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Merged
merged 18 commits into from
Mar 16, 2020
Merged

Deduplicate pretty printing of constants #67133

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02dbb35
Deduplicate and clean up pretty printing logic
oli-obk Dec 23, 2019
02f4eeb
Address review comments around `type_ascribed_value`
oli-obk Jan 27, 2020
3b82edd
Print braces only in print_ty mode
oli-obk Feb 5, 2020
4ddb4bd
Eliminate all ParamEnv::empty uses in pretty printing
oli-obk Feb 5, 2020
e22ddfd
Don't print leading zeros on hex dumps constants
oli-obk Feb 5, 2020
b837e71
Reduce special casing in the const pretty printer
oli-obk Feb 10, 2020
b2e93a4
Print leading zeros for non pointers
oli-obk Feb 10, 2020
1191eb4
Prefer fall through to code repetition
oli-obk Feb 12, 2020
154f3f1
Don't print all zsts as their type as it makes no sense for more comp…
oli-obk Feb 12, 2020
b78dbf4
Reuse type ascripted printing for type cast printing
oli-obk Feb 13, 2020
fff2e0f
Print function pointer type for function pointer const generics
oli-obk Feb 26, 2020
cc9ca64
Don't print literal type suffixes if `print_ty` is false
oli-obk Feb 26, 2020
2e91065
Generalize typed value printing and use for undef printing
oli-obk Feb 26, 2020
db9ddf1
Address review comments
oli-obk Mar 11, 2020
d0b1211
Comment nit
oli-obk Mar 12, 2020
6e73a14
Remove fn special casing in const printing
oli-obk Mar 12, 2020
306df94
Print ConstKind::Bound the same as TyKind::Bound
oli-obk Mar 13, 2020
6ca65bd
Print ConstKind::Placeholder just like TyKind::Placeholder
oli-obk Mar 13, 2020
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16 changes: 8 additions & 8 deletions src/librustc/mir/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2562,15 +2562,15 @@ impl<'tcx> Debug for Constant<'tcx> {

impl<'tcx> Display for Constant<'tcx> {
fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result {
use crate::ty::print::PrettyPrinter;
write!(fmt, "const ")?;
// FIXME make the default pretty printing of raw pointers more detailed. Here we output the
// debug representation of raw pointers, so that the raw pointers in the mir dump output are
// detailed and just not '{pointer}'.
if let ty::RawPtr(_) = self.literal.ty.kind {
write!(fmt, "{:?} : {}", self.literal.val, self.literal.ty)
} else {
write!(fmt, "{}", self.literal)
}
ty::tls::with(|tcx| {
let literal = tcx.lift(&self.literal).unwrap();
let mut cx = FmtPrinter::new(tcx, fmt, Namespace::ValueNS);
cx.print_alloc_ids = true;
cx.pretty_print_const(literal, true)?;
Ok(())
})
}
}

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