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@dadhi dadhi released this 25 Jan 16:01
· 1757 commits to master since this release
v2.0.0
a497313

Major release

Contains breaking changes, but likely or lucky you'll need to re-compile only.

Thanks

V2 was developed with a strong help of @jogibear9988, @dzmitry-lahoda, @MaceWindu,
and other contributors - kudos to all of them!

The main change

FEC package now is split in two: [FastExpressionCompiler (FEC)] and [FastExpressionCompiler.LightExpression (FEC.LE)]. The packages are not dependent on each other and may be used together.

FEC.LightExpression allows a drop-in replacement for manually created expression, the only change is different namespace using. LE.Expression is "lighter" because it is faster created and consumes less memory. It does it by avoiding most of compatibility and verification checks. But it does not mean it is not safe! You can convert it to System Expression as easy as calling ToExpression or ToLambdaExpression and it will run the usual verification. This conversation also enables fallback to Expression.Compile inside the CompileFast.

  • ExpressionInfo and supporting logic is moved from FEC to FEC.LE
  • ExpressionInfo is renamed to Expression but moved into new namespace FastExpressionCompiler.LightExpression
  • FastExpressionCompiler.cs stripped from ExpressionInfo noise and now is much simpler and lost 33% LOC.
  • FastExpressionCompiler.cs is shared between FEC and FEC.LE with LIGHT_EXPRESSION build variable controlling what to compile: System.Linq.Expressions.Expression or FastExpressionCompiler.LightExpression

Features

  • added: #57 Consider signed package version!
  • added: #59 Support compiling delegates with ref and out parameters
  • added: #78 Lambda<Func>(Block(Label(Label(typeof(int)), Constant(7)))) is not supported
  • added: #88 Lambda<Func>(Block(Constant(IntPtr.Zero)))
  • added: #91 Support for MultiplyAssign, AddAsiggn, DivideAssign
  • added: #98 % and bit operators are not supported
  • added: #101 Some Assign Modes are not yet supported
  • added: #102 Label and Goto Expression not yet implemented
  • added: #105 Bit Expression Types are not yet supported
  • added: #106 ExpressionType.Power not supported
  • added: #107 Check if xxxAssigns also work with Variables
  • added: #118 Support for Expression.Variable (in a Expression.Block)
  • added: #127 Switch is not supported
  • added: #130 Net Framework Expression compiler generates perfromanter Code for isNull check
  • added: #138 Optimize Compilation of nested Lambdas

Fixes

  • fixed: #83 Issues with linq2db tests
  • fixed: #92 Expression not compilable
  • fixed: #93 Comparison to "null" does not work when not Typed
  • fixed: #95 Ref support not yet working completely
  • fixed: #124 LightExpression wrong Type
  • fixed: #131 Linq2db - Test for JIT compiler internal limitation
  • fixed: #137 Problem with Reading & Writing of Struct Fields.
  • fixed: #146 Boolean parameter value changed from false to true
  • fixed: #147 'Common Language Runtime detected an invalid program' with int.TryParse
  • fixed: #151 'Attempt to read protected memory'
  • fixed: #152 int.MinValue access throws 'Method not supported'
  • fixed: #154 Equals Expression does not call "Equals" of class (in MS Code)
  • fixed: #156 Invoking an Action constant fails with 'Common Language Runtime detected an invalid program'
  • fixed: #159 Condition with converted numeric comparisons gives unexpected result
  • fixed: #162 Float - short numeric comparisons with conversions gives unexpected result
  • fixed: #163 Add of Nullable Int, etc does not work correctly
  • fixed: #165 Int and Decimal to Double conversion issues
  • fixed: #170 Problems with ref parameters
  • fixed: #172 Using FEC to compile a property setter with an enum value sets the property to random values
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