README.md

SmartExpression

运算符

运算符	描述
+	Add
&	And
&&	AndAlso
/	Divide
==	Equal
^	ExclusiveOr
>	GreaterThan
>=	GreaterThanOrEqual
<<	LeftShift
<	LessThan
<=	LessThanOrEqual
.	MemberAccess
%	Modulo
*	Multiply
!	Not
!=	NotEqual
|	Or
||	OrElse
>>	RightShift
-	Subtract
??	Coalesce a??b
[i]	ArrayIndex

关键词

关键词	描述
as	TypeAs
is	TypeIs

类型关键词

null,sbyte,byte,char,short,ushort,int,uint,long,ulong,float,double,decimal,bool,true,false

SmartExpression 表达式语法

public class CompileEngineTest
    {
        [Fact]
        public void Compile_Bool()
        {
            var exe = CompileEngine.Compile<Func<object, bool>>("Id==1");
            bool result = exe.Invoke(new { Id = 1 });
            Assert.True(result);
        }

        [Fact]
        public void Compile_Bool_WithNoParamters()
        {
            var exe = CompileEngine.Compile<Func<bool>>("1==1");
            bool result = exe.Invoke();
            Assert.True(result);
        }

        [Fact]
        public void Compile_Bool_IsNotNull()
        {
            var exe = CompileEngine.Compile<Func<object, bool>>("Name!=null");
            bool result = exe.Invoke(new
            {
                Name = "SmartExpression"
            });
            Assert.True(result);
        }

        [Fact]
        public void Compile_Bool_NestIsNotNull()
        {
            var exe = CompileEngine.Compile<Func<object, bool>>("Who.Name!=null");
            bool result = exe.Invoke(new
            {
                Who = new
                {
                    Name = "SmartExpression"
                }
            });
            Assert.True(result);
        }

        [Fact]
        public void Compile_Bool_Array()
        {
            var exe = CompileEngine.Compile<Func<object, bool>>("Ids.Length==3 and Ids[0]==1");
            bool result = exe.Invoke(new
            {
                Ids = new long[] { 1, 2, 3 }
            });
            Assert.True(result);
        }

        [Fact]
        public void Compile_Bool_NestBlock()
        {
            var exe = CompileEngine.Compile<Func<object, bool>>("Ids!=null && (Ids.Length==3 && Ids[0]==1) && Name!=null");
            bool result = exe.Invoke(new
            {
                Ids = new long[] { 1, 2, 3 },
                Name = "SmartExpression"
            });
            Assert.True(result);
        }

        [Fact]
        public void Compile_Int()
        {
            var exe = CompileEngine.Compile<Func<int>>("1+1");
            int result = exe.Invoke();
            Assert.Equal(2, result);
        }