FastExpressionCompiler 3.1.0-preview-01

v3.1.0 Bug-fix release

• added: #297 Add custom Constant to string output in the ToCSharpString and ToExpressionString
• added: #303 Add CompilerFlags.ThrowOnNotSupportedException and throw NotSupportedExpressionException when the flag is passed to CompileFast
• fixed: #301 Another case of the InvalidOperationException in the Mapster
• fixed: ListInit compilation for the Dictionary

v3.0.5 Bug-fix release

• fixed: another case in #301 InvalidOperationException in the Mapster
• fixed: multiple problems with the TryCatch C# and Expression string output

v3.0.4 Bug-fix release

• fixed: #302 Error compiling expression with array access

v3.0.3 Bug-fix release

• fixed: #301 InvalidOperationException in the Mapster
• fixed: small bugs in the Lambda ToCSharpString output

v3.0.2 Bug-fix release

• fixed: #300 Bad label content in ILGenerator in the Mapster benchmark with FEC V3
• fixed: Small issues with the ToCSharpString(), specifically in the TryCatch, and the Goto, and the Label expressions

v3.0.1 Bug-fix release

fixed: #298 LightExpression with the NewExpression of 4 arguments has ArgumentCount = 3

v3.0.0 - Major feature release

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

FastExpressionCompiler and FastExpressionCompiler.LightExpression

• Performance and memory consumption are improved, especially for the expressions with the closure and for expressions with the nested lambdas.
• More expression types are supported.
• Many fixes in the IL Emit.
• Added ToCSharpString() extension method to output the compile-able C# code described by the expression (tries hard).
• Added ToExpressionString() extension method to output the valid expression construction syntax, so given an expression object you'll get e.g. Lambda(New(...)).
• Added 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 the FastExpressionCompiler.LightExpression.Expression and the System.Linq.Expression.
• Decreasing the memory consumed by the created expressions partially via implementing the IArgumentProvider and IParameterProvider for some expressions.

The full list of the closed issues

Milestone v3.0.0