Merge pull request #53 from wdcossey/wdcossey/added-async-to-template

Added some `async` overloads to `IRazorEngineTemplate`

Author: adoconnection

RazorEngineCore/IRazorEngineTemplate.cs

@@ -5,12 +5,33 @@ namespace RazorEngineCore
     public interface IRazorEngineTemplate
     {
         dynamic Model { get; set; }
+        
         void WriteLiteral(string literal = null);
+        
+        Task WriteLiteralAsync(string literal = null);
+        
         void Write(object obj = null);
+        
+        Task WriteAsync(object obj = null);
+        
         void BeginWriteAttribute(string name, string prefix, int prefixOffset, string suffix, int suffixOffset, int attributeValuesCount);
+        
+        Task BeginWriteAttributeAsync(string name, string prefix, int prefixOffset, string suffix, int suffixOffset, int attributeValuesCount);
+        
         void WriteAttributeValue(string prefix, int prefixOffset, object value, int valueOffset, int valueLength, bool isLiteral);
+        
+        Task WriteAttributeValueAsync(string prefix, int prefixOffset, object value, int valueOffset, int valueLength, bool isLiteral);
+        
         void EndWriteAttribute();
+        
+        Task EndWriteAttributeAsync();
+        
+        void Execute();
+        
         Task ExecuteAsync();
+        
         string Result();
+        
+        Task<string> ResultAsync();
     }
 }

RazorEngineCore/RazorEngineCompiledTemplate.cs

@@ -101,7 +101,7 @@ public async Task<string> RunAsync(object model = null)
 
             await instance.ExecuteAsync();
 
-            return instance.Result();
+            return await instance.ResultAsync();
         }
     }
 }

RazorEngineCore/RazorEngineCompiledTemplateT.cs

@@ -96,7 +96,7 @@ public async Task<string> RunAsync(Action<T> initializer)
 
             await instance.ExecuteAsync();
 
-            return instance.Result();
+            return await instance.ResultAsync();
         }
     }
 }

RazorEngineCore/RazorEngineTemplateBase.cs

@@ -11,32 +11,69 @@ public abstract class RazorEngineTemplateBase : IRazorEngineTemplate
 
         public dynamic Model { get; set; }
 
-        public virtual void WriteLiteral(string literal = null)
+        public void WriteLiteral(string literal = null)
+        {
+            WriteLiteralAsync(literal).GetAwaiter().GetResult();
+        }
+
+        public virtual Task WriteLiteralAsync(string literal = null)
         {
             this.stringBuilder.Append(literal);
+            return Task.CompletedTask;
+        }
+
+        public void Write(object obj = null)
+        {
+            WriteAsync(obj).GetAwaiter().GetResult();
         }
 
-        public virtual void Write(object obj = null)
+        public virtual Task WriteAsync(object obj = null)
         {
             this.stringBuilder.Append(obj);
+            return Task.CompletedTask;
+        }
+
+        public void BeginWriteAttribute(string name, string prefix, int prefixOffset, string suffix, int suffixOffset,
+            int attributeValuesCount)
+        {
+            BeginWriteAttributeAsync(name, prefix, prefixOffset, suffix, suffixOffset, attributeValuesCount).GetAwaiter().GetResult();
         }
 
-        public virtual void BeginWriteAttribute(string name, string prefix, int prefixOffset, string suffix, int suffixOffset, int attributeValuesCount)
+        public virtual Task BeginWriteAttributeAsync(string name, string prefix, int prefixOffset, string suffix, int suffixOffset, int attributeValuesCount)
         {
             this.attributeSuffix = suffix;
             this.stringBuilder.Append(prefix);
+            return Task.CompletedTask;
+        }
+
+        public void WriteAttributeValue(string prefix, int prefixOffset, object value, int valueOffset, int valueLength,
+            bool isLiteral)
+        {
+            WriteAttributeValueAsync(prefix, prefixOffset, value, valueOffset, valueLength, isLiteral).GetAwaiter().GetResult();
         }
 
-        public virtual void WriteAttributeValue(string prefix, int prefixOffset, object value, int valueOffset, int valueLength, bool isLiteral)
+        public virtual Task WriteAttributeValueAsync(string prefix, int prefixOffset, object value, int valueOffset, int valueLength, bool isLiteral)
         {
             this.stringBuilder.Append(prefix);
             this.stringBuilder.Append(value);
+            return Task.CompletedTask;
         }
 
-        public virtual void EndWriteAttribute()
+        public void EndWriteAttribute()
+        {
+            EndWriteAttributeAsync().GetAwaiter().GetResult();
+        }
+
+        public virtual Task EndWriteAttributeAsync()
         {
             this.stringBuilder.Append(this.attributeSuffix);
             this.attributeSuffix = null;
+            return Task.CompletedTask;
+        }
+
+        public void Execute()
+        {
+            ExecuteAsync().GetAwaiter().GetResult();
         }
 
         public virtual Task ExecuteAsync()
@@ -46,7 +83,12 @@ public virtual Task ExecuteAsync()
 
         public virtual string Result()
         {
-            return this.stringBuilder.ToString();
+            return ResultAsync().GetAwaiter().GetResult();
+        }
+
+        public virtual Task<string> ResultAsync()
+        {
+            return Task.FromResult<string>(this.stringBuilder.ToString());
         }
     }
 }