bjoernager/rust
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Add has_default to GenericParamDefKind::Const

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This currently creates a field which is always false on GenericParamDefKind for future use when
consts are permitted to have defaults

Update const_generics:default locations

Previously just ignored them, now actually do something about them.

Fix using type check instead of value

Add parsing

This adds all the necessary changes to lower const-generics defaults from parsing.

Change P<Expr> to AnonConst

This matches the arguments passed to instantiations of const generics, and makes it specific to
just anonymous constants.

Attempt to fix lowering bugs
This commit is contained in:
kadmin 2020-08-11 00:02:45 +00:00
parent 79e5814f45
commit e4e5db4e42
39 changed files with 158 additions and 77 deletions
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6
compiler/rustc_hir_pretty/src/lib.rs
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@ -2266,8 +2266,10 @@ impl<'a> State<'a> {
GenericParamKind::Const { ref ty, ref default } => {
self.word_space(":");
self.print_type(ty);
if let Some(ref _default) = default {
// FIXME(const_generics_defaults): print the `default` value here
if let Some(ref default) = default {
self.s.space();
self.word_space("=");
self.print_anon_const(&default)
}
}
}