[OASIS Issue Tracker] Created: (ODATA-500) Require function/action overloads to differ by ordered set of parameter types

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Require function/action overloads to differ by ordered set of parameter types
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                 Key: ODATA-500
                 URL: http://tools.oasis-open.org/issues/browse/ODATA-500
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: OData CSDL
    Affects Versions: V4.0_CS
         Environment: [Proposed]
            Reporter: Michael Pizzo
             Fix For: V4.0_ERRATA01


[CSDL] does function overload resolution by the unordered set of parameter names. Most languages do function overload resolution according to the ordered set of parameter types.

Currently, [CSDL] allows two function overloads with different parameter names to have the same types:

<Function Name="Evaluate" ReturnType="Integer">
 <Parameter Name="Input" Type="Edm.Integer"/>
</Function>
<Function Name="Evaluate" ReturnType="Integer">
 <Parameter Name="Variable" Type="Edm.Integer"/>
</Function>

This doesn't add significant value, could be confusing, and would not be supported in most programming languages.

It is okay for OData to be more restrictive than conventional programming languages, but having it arbitrarily less restrictive makes it difficult to expose a client side programming model in a conventional language.

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