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88acd153d1
This change enables constant structure support for the Java backend for the
structures introduced by the polymorphism pass.
compiler/const_struct.m:
compiler/ml_unify_gen.m:
Enable constant structure support
java/runtime/TypeInfo_Struct.java:
Add a constructor to the TypeInfo structure for Java. This constructor
has the interface expected by the polymorphism code.
Never expect to be passed the arity to the varargs constructor.
compiler/polymorphism.m:
compiler/ml_unify_gen.m:
Change how we avoid creating TypeInfos with an explicit arity argument
for Java
We never specify the arity for a TypeInfo_Struct in a Java grade. There
are two reasons: this is a little difficult to handle due to overloading
rules and it is not necessary.
This is handled by removing these arguments in the MLDS backend.
However, the current solution does not work when we create TypeInfos as
constant structures. Therefore this change removes the special case
from the MLDS backend and instead never creates the arity arguments
during the polymorphism pass. rtti_to_mlds.m didn't need updating as it
already had the correct behaviour.
compiler/rtti_to_mlds.m:
Update a comment.