FastExpressionCompiler 3.0.0-preview-05

v3.0.0 - Major feature release

The version contains a lot of fixes and improvements and hopefully as-little-as-possible breaking changes.

FastExpressionCompiler and FastExpressionCompiler.LightExpression

• Performance and memory consumption is improved, especially for the expressions with the closure and for expressions with the nested lambdas.
• Filled the gaps in the expressions support.
• Many fixes in the IL emit.
• Adds ToCSharpString() to output the compile-able C# code described by the expression (tries hard).
• Adds ToExpressionString() to output the valid expression construction syntax, so given an expression object you'll get e.g. Lambda(New(...)).
• Adds optional enum CompilerFlags { Default, NoInvocationLambdaInlining, EnableDelegateDebugInfo} parameter for the compilation
• EnableDelegateDebugInfo adds the diagnostic info into the compiled delegate including its source Expression and C# code. Can be used as following:

    var f = e.CompileFast(true, CompilerFlags.EnableDelegateDebugInfo);
    var di = f.Target as IDelegateDebugInfo;
    Assert.IsNotNull(di.Expression);
    Assert.IsNotNull(di.ExpressionString);
    Assert.IsNotNull(di.CSharpString);

FastExpressionCompiler.LightExpression

• Now includes the ExpressionVisitor.
• Improves the compatibility (the drop-in replacement) between FastExpressionCompiler.LightExpression.Expression and System.Linq.Expression.
• Decreasing the memory consumed by the created expressions, plus implementing the IArgumentProvider and IParameterProvider for some of the expressions.

The full list of fixes

Milestone v3.0.0