FastExpressionCompiler.src 3.0.2

FastExpressionCompiler is 10-40x times faster than Expression.Compile()

Showing the top 20 packages that depend on FastExpressionCompiler.src.

Packages Downloads
Parlot
Parlot is a fast, lightweight and simple to use .NET parser combinator.
1

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

.NET Framework 4.5

.NET Standard 2.0

Version Downloads Last updated
5.3.3 1 11/08/2025
5.3.2 1 11/08/2025
5.3.1 1 11/08/2025
5.3.0 1 11/08/2025
5.2.0 1 11/08/2025
5.1.1 1 11/08/2025
5.1.0 1 11/08/2025
5.0.3 1 11/08/2025
5.0.2 1 11/08/2025
5.0.1 1 11/08/2025
5.0.0 1 11/08/2025
4.2.2 1 11/08/2025
4.2.1 1 11/08/2025
4.2.0 2 11/08/2025
4.1.0 1 11/08/2025
4.0.2 1 11/08/2025
4.0.1 1 11/08/2025
4.0.0 1 11/08/2025
3.3.4 1 11/08/2025
3.3.3 1 11/08/2025
3.3.2 1 11/08/2025
3.3.1 1 11/08/2025
3.3.0 1 11/08/2025
3.2.2 1 11/08/2025
3.2.1 1 11/08/2025
3.2.0 1 11/08/2025
3.1.0 1 11/08/2025
3.0.5 1 11/08/2025
3.0.4 1 11/08/2025
3.0.3 1 11/08/2025
3.0.2 1 11/08/2025
3.0.1 1 11/08/2025
3.0.0 1 11/08/2025