Evaluation context
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
Important
In Visual Studio 2015, this way of implementing expression evaluators is deprecated. For information about implementing CLR expression evaluators, see CLR expression evaluators and Managed expression evaluator sample.
When the debug engine (DE) calls the expression evaluator (EE), three arguments that are passed to EvaluateSync determine the context for finding and evaluating symbols, as shown in the following table.
Arguments
| Argument | Description |
|---|---|
pSymbolProvider |
An IDebugSymbolProvider interface that specifies the symbol handler (SH) to be used to identify the symbol. |
pAddress |
An IDebugAddress interface that specifies the current point of execution. This interface finds the method that contains the code being executed. |
pBinder |
An IDebugBinder interface that finds the value and type of a symbol given its name. |
IDebugParsedExpression::EvaluateSync returns an IDebugProperty2 interface representing the resulting value and its type.