Merge pull request #186 from octokit/ismutation

Added `IsMutation` to `ICompiledQuery`.

Author: StanleyGoldman

Octokit.GraphQL.Core/Core/PagedQuery.cs

@@ -31,6 +31,11 @@ public PagedQuery(
             Subqueries = subqueries.ToList();
         }
 
+        /// <summary>
+        /// Gets a value indicating whether the query is a mutation.
+        /// </summary>
+        public bool IsMutation => MasterQuery.IsMutation;
+
         /// <summary>
         /// Gets the master query.
         /// </summary>

Octokit.GraphQL.Core/Core/SimpleQuery.cs

@@ -36,6 +36,11 @@ public SimpleQuery(
             ResultBuilder = ExpressionCompiler.Compile(resultBuilder);
         }
 
+        /// <summary>
+        /// Gets a value indicating whether the query is a mutation.
+        /// </summary>
+        public bool IsMutation => OperationDefinition.Type == OperationType.Mutation;
+
         /// <summary>
         /// Gets the GraphQL operation definition.
         /// </summary>

Octokit.GraphQL.Core/ICompiledQuery.cs

@@ -9,6 +9,11 @@ namespace Octokit.GraphQL
     /// </summary>
     public interface ICompiledQuery
     {
+        /// <summary>
+        /// Gets a value indicating whether the query is a mutation.
+        /// </summary>
+        bool IsMutation { get; }
+
         /// <summary>
         /// Returns an <see cref="IQueryRunner"/> which can be used to run the query on a connection.
         /// </summary>