FastExpressionCompiler 3.0.0-preview-03

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

Showing the top 20 packages that depend on FastExpressionCompiler.

Packages Downloads
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
108
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
109
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
110
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
117
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
119
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
121
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
122
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
123
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
124
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
127
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
130
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
184
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
202
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
267
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
476
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
565

## 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 expression (tries hard). - Adds `ToExpressionString()` to output the valid expression construction syntax, so given an expression object you'll get e.g. `Expression.Lambda(Expression.New(...))`. ### **FastExpressionCompiler.LightExpression** - Fixes the compatibility (the drop-in replacement) between `FastExpressionCompiler.LightExpression.Expression` and `System.Linq.Expression`. - Decreasing the mempry consumed by the created expressions, plus implementing the `IArgumentProvider` and `IParameterProvider` for some of the expressions. - Now includes the `ExpressionVisitor`. ### The full list of fixes [Milestone v3.0.0](https://github.com/dadhi/FastExpressionCompiler/milestone/19)

.NET Framework 4.5

.NET Standard 2.0

Version Downloads Last updated
5.3.0 95 06/12/2025
5.2.0 89 05/15/2025
5.2.0-preview-02 99 04/28/2025
5.2.0-preview-01 79 04/28/2025
5.1.1 99 04/04/2025
5.1.0 84 04/01/2025
5.0.3 78 03/30/2025
5.0.2 265 02/11/2025
5.0.1 88 12/25/2024
5.0.0 91 11/28/2024
4.2.2 113 10/19/2024
4.2.1 117 07/23/2024
4.2.0 133 07/23/2024
4.1.0 135 07/23/2024
4.0.2 145 07/23/2024
4.0.1 209 02/05/2024
4.0.0 104 07/23/2024
3.4.0-preview-01 101 07/23/2024
3.3.4 115 07/23/2024
3.3.3 158 02/04/2024
3.3.2 107 07/23/2024
3.3.1 116 07/23/2024
3.3.0 117 07/23/2024
3.2.2 115 07/23/2024
3.2.1 111 05/29/2024
3.2.0 122 07/23/2024
3.1.0 124 07/23/2024
3.1.0-preview-03 112 07/23/2024
3.1.0-preview-02 123 07/23/2024
3.1.0-preview-01 113 07/23/2024
3.0.6-preview-01 107 07/23/2024
3.0.5 115 07/23/2024
3.0.4 108 07/23/2024
3.0.3 112 07/23/2024
3.0.2 116 07/23/2024
3.0.1 122 07/23/2024
3.0.0 112 07/23/2024
3.0.0-preview-07 110 07/20/2024
3.0.0-preview-06 108 07/23/2024
3.0.0-preview-05 115 07/23/2024
3.0.0-preview-04 104 07/23/2024
3.0.0-preview-03 107 07/23/2024
3.0.0-preview-02 112 07/23/2024
3.0.0-preview-01 108 07/23/2024
2.0.0 118 07/23/2024
2.0.0-preview-03 100 07/23/2024
2.0.0-preview-02 112 07/23/2024
2.0.0-preview-01 113 07/21/2024
1.10.1 99 07/23/2024
1.10.0 104 07/23/2024
1.9.0 115 07/23/2024
1.8.0 112 07/23/2024
1.7.2 108 07/23/2024
1.7.1 112 07/23/2024
1.7.0 107 07/23/2024
1.6.0 101 07/23/2024
1.5.0 107 07/23/2024
1.4.0 116 07/23/2024
1.3.0 99 07/23/2024
1.2.2 125 07/23/2024
1.2.1 124 07/23/2024
1.2.0 106 07/23/2024
1.1.1 111 07/23/2024
1.1.0 112 07/23/2024
1.0.1 103 07/23/2024
1.0.0 116 07/23/2024
1.0.0-preview-04 116 07/23/2024
1.0.0-preview-03 117 07/23/2024
1.0.0-preview-02 110 07/23/2024
1.0.0-preview-01 113 07/23/2024