Merge pull request #18 from dansiegel/pragma-warnings

allow Pragma warning disable

src/CodeGenHelpers/BuilderBase.cs

@@ -1,10 +1,28 @@
-namespace CodeGenHelpers
+using System.Collections.Generic;
+using System.Linq;
+
+namespace CodeGenHelpers
 {
     public abstract class BuilderBase : IBuilder
     {
+        protected readonly List<string> _pragmaWarnings = new List<string>();
+
         internal abstract void Write(ref CodeWriter writer);
 
-        void IBuilder.Write(ref CodeWriter writer) =>
+        void IBuilder.Write(ref CodeWriter writer)
+        {
+            var warnings = string.Join(", ", _pragmaWarnings.Distinct());
+            if(_pragmaWarnings.Any())
+            {
+                writer.AppendUnindentedLine($"#pragma warning disable {warnings}");
+            }
+
             Write(ref writer);
+
+            if (_pragmaWarnings.Any())
+            {
+                writer.AppendUnindentedLine($"#pragma warning restore {warnings}");
+            }
+        }
     }
 }

src/CodeGenHelpers/BuilderBase{T}.cs

@@ -9,5 +9,10 @@ public abstract class BuilderBase<T> : BuilderBase
         public abstract T AddNamespaceImport(ISymbol symbol);
         public abstract T AddNamespaceImport(INamespaceSymbol symbol);
         public abstract T AddAssemblyAttribute(string attribute);
+        public T DisableWarning(string buildCode)
+        {
+            _pragmaWarnings.Add(buildCode);
+            return this as T;
+        }
     }
 }

src/CodeGenHelpers/CodeGenHelpers.projitems

@@ -12,6 +12,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)AccessibilityExtensions.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)BuilderBase.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)BuilderBase{T}.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)CompilerWarnings.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ClassBuilder.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)CodeBuilder.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)CodeBuilderExtensions.cs" />

src/CodeGenHelpers/CompilerWarnings.cs

@@ -0,0 +1,20 @@
+namespace CodeGenHelpers
+{
+    public class CompilerWarnings
+    {
+        /// <summary>
+        /// The field is never used
+        /// </summary>
+        public const string CS0169 = nameof(CS0169);
+
+        /// <summary>
+        /// The member is marked obsolete
+        /// </summary>
+        public const string CS0612 = nameof(CS0612);
+
+        /// <summary>
+        /// The member is marked obsolete with a message
+        /// </summary>
+        public const string CS0618 = nameof(CS0618);
+    }
+}