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This interface is responsible for resolving unbound variables, object members and subscript expressions (like a[1]).
When a resolution fails, implementation returns the default value. That means,
def==resolveVar(name, def)can be used to test whether a resolution succeeded.
Jaskell.setResolver(Resolver)
can be used to associate a Resolver instance
to a jaskell runtime.
Method Summary | |
java.lang.Object |
resolveMember(java.lang.Object obj,
java.lang.String name,
java.lang.Object def)
Resolve a tuple member. |
java.lang.Object |
resolveSubscript(java.lang.Object obj,
java.lang.Object[] args,
java.lang.Object def)
Resolve a subscript expression. |
java.lang.Object |
resolveVar(java.lang.String name,
java.lang.Object def)
Resolve a variable. |
Method Detail |
public java.lang.Object resolveVar(java.lang.String name, java.lang.Object def)
name
- the variable name.def
- the default value.
public java.lang.Object resolveMember(java.lang.Object obj, java.lang.String name, java.lang.Object def)
obj
- the object.name
- the member name.def
- the default value.
public java.lang.Object resolveSubscript(java.lang.Object obj, java.lang.Object[] args, java.lang.Object def)
obj
- the object.args
- the subscripts.def
- the default value.
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