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      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [WebAssembly Target] Import+Export Attribute: C++ Generics"
   href="https://bugs.llvm.org/show_bug.cgi?id=49892">49892</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[WebAssembly Target] Import+Export Attribute: C++ Generics
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>other
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>sascha.braun.lpz@googlemail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hi,

this is more a feature proposal than a bug report.
For WASM, we have 

__attribute__((import_name(name)))
__attribute__((export_name(name)))

This is static and not yet really suitable for generic types and functions.

Can this be extended, e.g. in the following manner:

__attribute__((import_name("importedfunction1<T>")))

Where T gets replaced by the generic argument type name.

In order to be able to address unmangled or language independent type names,
another addition may be needed:

We would need to be able to decorate types/classes with another attribute, e.g.
__attribute__((wasm_type_name("MyClass1NameAttribute"))) class MyClass1 { ...
};

So we can get finally to resolve
__attribute__((import_name("importedfunction1<T>"))) generic_type_function1()
{}

into a wasm import name importedfunction1<MyClass1NameAttribute>. 

This can be very useful if the executing VM is aware of the generics the wasm
module is implementing.

Many Thanks,
Sascha</pre>
        </div>
      </p>


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