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authorPhilip Herron <philip.herron@embecosm.com>2021-10-21 18:27:37 +0100
committerPhilip Herron <philip.herron@embecosm.com>2021-10-22 10:38:17 +0100
commitb538aa91056a10b31c54580316c49c764f884d67 (patch)
tree109fce1ad7d9ada99d4329a0f481e9a7b08971cc /gcc
parent649e3e074bf8306bf0eb042f10483dbd61cd040b (diff)
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The number of required substituions is offset from the already substituted
When doing HIR::GenericArgs substitutions we must offset from the already partially substituted arguments.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/rust/typecheck/rust-tyty.cc9
1 files changed, 4 insertions, 5 deletions
diff --git a/gcc/rust/typecheck/rust-tyty.cc b/gcc/rust/typecheck/rust-tyty.cc
index f08d8cb..a361653 100644
--- a/gcc/rust/typecheck/rust-tyty.cc
+++ b/gcc/rust/typecheck/rust-tyty.cc
@@ -357,7 +357,9 @@ SubstitutionRef::get_mappings_from_generic_args (HIR::GenericArgs &args)
return SubstitutionArgumentMappings::error ();
}
- if (args.get_type_args ().size () > substitutions.size ())
+ // for inherited arguments
+ size_t offs = used_arguments.size ();
+ if (args.get_type_args ().size () + offs > substitutions.size ())
{
RichLocation r (args.get_locus ());
r.add_range (substitutions.front ().get_param_locus ());
@@ -369,7 +371,7 @@ SubstitutionRef::get_mappings_from_generic_args (HIR::GenericArgs &args)
return SubstitutionArgumentMappings::error ();
}
- if (args.get_type_args ().size () < min_required_substitutions ())
+ if (args.get_type_args ().size () + offs < min_required_substitutions ())
{
RichLocation r (args.get_locus ());
r.add_range (substitutions.front ().get_param_locus ());
@@ -381,9 +383,6 @@ SubstitutionRef::get_mappings_from_generic_args (HIR::GenericArgs &args)
return SubstitutionArgumentMappings::error ();
}
- // for inherited arguments
- size_t offs = used_arguments.size ();
-
std::vector<SubstitutionArg> mappings;
for (auto &arg : args.get_type_args ())
{