PM> Install-Package ExpressionDebugger
This plugin allows you to perform step-into debugging using Roslyn!
Then add following code on start up (or anywhere before mapping is compiled)
TypeAdapterConfig.GlobalSettings.Compiler = exp => exp.CompileWithDebugInfo();
Now in your mapping code (only in DEBUG mode).
var dto = poco.Adapt<SimplePoco, SimpleDto>(); //<--- you can step-into this function!!Using internal classes or members
private, protected and internal aren't allowed in debug mode.
We can also see how Mapster generates mapping logic with ToScript method.
var script = poco.BuildAdapter()
.CreateMapExpression<SimpleDto>()
.ToScript();
To step-into debugging, you might need to emit file
var opt = new ExpressionCompilationOptions { EmitFile = true };
TypeAdapterConfig.GlobalSettings.Compiler = exp => exp.CompileWithDebugInfo(opt);
...
var dto = poco.Adapt<SimplePoco, SimpleDto>(); //<-- you can step-into this function!! Do not worry about performance
In RELEASE mode, Roslyn compiler is actually faster than default dynamic compilation by 2x. Here is the result:
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