[orc-rt] Add method-wrapper utils for use with WrapperFunction::handle. #162035
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WrapperFunction::handleWithAsyncMethod can be used to wrap asynchronous methods (void methods whose first arguments are Return callbacks) for use with WrapperFunction::handle. WrapperFunction::handleWithSyncMethod can be used to wrap regular (non-asynchronous) methods for use with WrapperFunction::handle. Both variants return function objects that take a Return callback as their first argument, and an ExecutorAddr representing the address of the instance to call the object on. For asynchronous methods the resulting function object (AsyncMethod<method-ptr>) forwards the Return callback through to the method. For synchronous methods the method is called and the result passed to the Return callback.
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…e. (llvm#162035) WrapperFunction::handleWithAsyncMethod can be used to wrap asynchronous methods (void methods whose first arguments are Return callbacks) for use with WrapperFunction::handle. WrapperFunction::handleWithSyncMethod can be used to wrap regular (non-asynchronous) methods for use with WrapperFunction::handle. Both variants return function objects that take a Return callback as their first argument, and an ExecutorAddr representing the address of the instance to call the object on. For asynchronous methods the resulting function object (AsyncMethod<method-ptr>) forwards the Return callback through to the method. For synchronous methods the method is called and the result passed to the Return callback.
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WrapperFunction::handleWithAsyncMethod can be used to wrap asynchronous methods (void methods whose first arguments are Return callbacks) for use with WrapperFunction::handle.
WrapperFunction::handleWithSyncMethod can be used to wrap regular (non-asynchronous) methods for use with WrapperFunction::handle.
Both variants return function objects that take a Return callback as their first argument, and an ExecutorAddr representing the address of the instance to call the object on. For asynchronous methods the resulting function object (AsyncMethod) forwards the Return callback through to the method. For synchronous methods the method is called and the result passed to the Return callback.