No null arrays passed to LambdaExpressionFactory methods

alex-kulakov · alex-kulakov · commit 943b2a892dde · 2020-05-15T18:18:59.000+05:00
diff --git a/Orm/Xtensive.Orm/Linq/FastExpression.cs b/Orm/Xtensive.Orm/Linq/FastExpression.cs
@@ -26,7 +26,7 @@ public static class FastExpression
     /// <returns>Constructed lambda expression.</returns>
     public static LambdaExpression Lambda(Type delegateType, Expression body, params ParameterExpression[] parameters)
     {
-      return LambdaExpressionFactory.Instance.CreateLambda(delegateType, body, parameters);
+      return LambdaExpressionFactory.Instance.CreateLambda(delegateType, body, parameters ?? Array.Empty<ParameterExpression>());
     }
 
     /// <summary>
@@ -38,7 +38,8 @@ public static LambdaExpression Lambda(Type delegateType, Expression body, params
     /// <returns>Constructed lambda expression.</returns>
     public static Expression<TDelegate> Lambda<TDelegate>(Expression body, params ParameterExpression[] parameters)
     {
-      return (Expression<TDelegate>) LambdaExpressionFactory.Instance.CreateLambda(typeof(TDelegate), body, parameters);
+      return (Expression<TDelegate>) LambdaExpressionFactory.Instance
+        .CreateLambda(typeof(TDelegate), body, parameters ?? Array.Empty<ParameterExpression>());
     }
 
     /// <summary>
@@ -61,7 +62,7 @@ public static LambdaExpression Lambda(Type delegateType, Expression body, IEnume
     /// <returns>Constructed lambda expression.</returns>
     public static LambdaExpression Lambda(Expression body, params ParameterExpression[] parameters)
     {
-      return LambdaExpressionFactory.Instance.CreateLambda(body, parameters);
+      return LambdaExpressionFactory.Instance.CreateLambda(body, parameters ?? Array.Empty<ParameterExpression>());
     }
 
     /// <summary>

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@ public static class FastExpression`
`26`	`26`	`/// <returns>Constructed lambda expression.</returns>`
`27`	`27`	`public static LambdaExpression Lambda(Type delegateType, Expression body, params ParameterExpression[] parameters)`
`28`	`28`	`{`
`29`		`- return LambdaExpressionFactory.Instance.CreateLambda(delegateType, body, parameters);`
	`29`	`+ return LambdaExpressionFactory.Instance.CreateLambda(delegateType, body, parameters ?? Array.Empty<ParameterExpression>());`
`30`	`30`	`}`
`31`	`31`
`32`	`32`	`/// <summary>`
`@@ -38,7 +38,8 @@ public static LambdaExpression Lambda(Type delegateType, Expression body, params`
`38`	`38`	`/// <returns>Constructed lambda expression.</returns>`
`39`	`39`	`public static Expression<TDelegate> Lambda<TDelegate>(Expression body, params ParameterExpression[] parameters)`
`40`	`40`	`{`
`41`		`- return (Expression<TDelegate>) LambdaExpressionFactory.Instance.CreateLambda(typeof(TDelegate), body, parameters);`
	`41`	`+ return (Expression<TDelegate>) LambdaExpressionFactory.Instance`
	`42`	`+ .CreateLambda(typeof(TDelegate), body, parameters ?? Array.Empty<ParameterExpression>());`
`42`	`43`	`}`
`43`	`44`
`44`	`45`	`/// <summary>`
`@@ -61,7 +62,7 @@ public static LambdaExpression Lambda(Type delegateType, Expression body, IEnume`
`61`	`62`	`/// <returns>Constructed lambda expression.</returns>`
`62`	`63`	`public static LambdaExpression Lambda(Expression body, params ParameterExpression[] parameters)`
`63`	`64`	`{`
`64`		`- return LambdaExpressionFactory.Instance.CreateLambda(body, parameters);`
	`65`	`+ return LambdaExpressionFactory.Instance.CreateLambda(body, parameters ?? Array.Empty<ParameterExpression>());`
`65`	`66`	`}`
`66`	`67`
`67`	`68`	`/// <summary>`