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auto tdeclHole = HOLE( name );
auto pat = ValueToEIR( Value( move( typeSig ), HOLE( "_"_sid ) ) );
for( auto&& [s,tcc] : TypeCheck( pat, rhs, tcc ) )
{
// We need to typecheck the result with a hole named after the decl. However, since both sides of
// this unification orignally appeared on the LHS, we need to setup RHS to alias the LHS namespace for this.
auto savedRHSNamespaceIndex = tcc.RHSNamespaceIndex();
tcc.setRHSNamespaceIndex( tcc.LHSNamespaceIndex() );
auto savedRHSSubContext = tcc.RHSSubContext();
tcc.RHSSubContext() = tcc.LHSSubContext();
for( auto&& [s,tcc] : TypeCheck( s, tdeclHole, tcc ) )
{
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
co_yield { s, tcc };
}
}
} );
e.typeCheckingRuleSet()->addUnificationRule( TCRINFOS, tDeclPat, ANYTERM( _ ),
[]( const Term& lhs, const Term& rhs, TypeCheckingContext tcc ) -> TCGen
{
auto [name,typeSig] = DecomposeTDSig( lhs );
auto tdeclHole = HOLE( name );
auto pat = ValueToEIR( Value( move( typeSig ), HOLE( "_"_sid ) ) );
for( auto&& [s,tcc] : Unify( pat, rhs, tcc ) )
{
// We need to unify the result with a hole named after the decl. However, since both sides of
// this unification orignally appeared on the LHS, we need to setup RHS to alias the LHS namespace for this.
auto savedRHSNamespaceIndex = tcc.RHSNamespaceIndex();
tcc.setRHSNamespaceIndex( tcc.LHSNamespaceIndex() );
auto savedRHSSubContext = tcc.RHSSubContext();
tcc.RHSSubContext() = tcc.LHSSubContext();
for( auto&& [s,tcc] : Unify( s, tdeclHole, tcc ) )
{
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
co_yield { s, tcc };
}
}
} );
// tfunc tdecl param / tfunc arg
auto tDeclTFuncPat = TDeclSigPattern( ANYTERM( _ ), TFuncTypeSigPattern( ANYTERM( _ ), ANYTERM( _ ) ) );
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auto rhsVal = *EIRToValue( rhs );
ConstrainedFunc cfunc( tfSig, GetTFuncInvocationRule(), rhsVal );
auto cFuncTerm = ValueToEIR( ToValue( move( cfunc ) ) );
// Create a new named hole namespace to isolate holes from the passed function from those in
// the called function.
auto savedRHSNamespaceIndex = tcc.RHSNamespaceIndex();
tcc.setRHSNamespaceIndex( tcc.newNamespaceIndex() );
auto savedRHSSubContext = tcc.RHSSubContext();
tcc.RHSSubContext().namespaceIndex = tcc.newNamespaceIndex();
auto oldValueRequired = tcc.isValueResolutionRequired();
tcc.setValueResolutionRequired( false );
for( auto&& [s, tcc] : TypeCheck( callPat, rhs, tcc ) )
{
// Restore the namespace
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
tcc.setValueResolutionRequired( oldValueRequired );
// We need to unify the result with a hole named after the decl. However, since both sides of
// this unification orignally appeared on the LHS, we need to setup RHS to alias the LHS namespace for this.
tcc.setRHSNamespaceIndex( tcc.LHSNamespaceIndex() );
tcc.RHSSubContext() = tcc.LHSSubContext();
for( auto&& [s,tcc] : Unify( cFuncTerm, tdeclHole, tcc ) )
{
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
co_yield { s, tcc };
}
}
} );
// tfunc tdecl param / overloadset arg
e.typeCheckingRuleSet()->addTypeCheckingRule( TCRINFOS,
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auto rhsVal = *EIRToValue( rhs );
ConstrainedFunc cfunc( tfSig, GetOverloadSetInvocationRule(), rhsVal );
auto cFuncTerm = ValueToEIR( ToValue( move( cfunc ) ) );
// Create a new named hole namespace to isolate holes from the passed function from those in
// the called function.
auto savedRHSNamespaceIndex = tcc.RHSNamespaceIndex();
tcc.setRHSNamespaceIndex( tcc.newNamespaceIndex() );
auto savedRHSSubContext = tcc.RHSSubContext();
tcc.RHSSubContext().namespaceIndex = tcc.newNamespaceIndex();
auto oldValueRequired = tcc.isValueResolutionRequired();
tcc.setValueResolutionRequired( false );
for( auto&& [s, tcc] : TypeCheck( callPat, rhs, tcc ) )
{
// Restore the namespace
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
tcc.setValueResolutionRequired( oldValueRequired );
// We need to unify the result with a hole named after the decl. However, since both sides of
// this unification orignally appeared on the LHS, we need to setup RHS to alias the LHS namespace for this.
tcc.setRHSNamespaceIndex( tcc.LHSNamespaceIndex() );
tcc.RHSSubContext() = tcc.LHSSubContext();
for( auto&& [s,tcc] : Unify( cFuncTerm, tdeclHole, tcc ) )
{
tcc.setRHSNamespaceIndex( savedRHSNamespaceIndex );
tcc.RHSSubContext() = savedRHSSubContext;
co_yield { s, tcc };
}
}
} );
}
}
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