Added option for additional parameter in iwyu integration.

Fixes  #44.

Author: Wumpf

IncludeToolbox/IncludeWhatYouUse/IWYU.cs

@@ -281,6 +281,10 @@ static public string RunIncludeWhatYouUse(string fullFileName, EnvDTE.Project pr
                     // --max_line_length: maximum line length for includes. Note that this only affects comments and alignment thereof,
                     // the maximum line length can still be exceeded with long file names(default: 80).
                     process.StartInfo.Arguments += "-Xiwyu --max_line_length=1024 ";
+
+                    // Custom stuff.
+                    process.StartInfo.Arguments += settings.AdditionalParameters;
+                    process.StartInfo.Arguments += " ";
                 }
 
 

IncludeToolbox/Options/IncludeWhatYouUseOptionsPage.cs

@@ -81,6 +81,11 @@ public enum PrefixHeaderMode
         [Description("Do not suggest that a file add foo.h unless foo.h is already visible in the file's transitive includes. (--transitive_includes_only)")]
         public bool TransitiveIncludesOnly { get; set; } = false;
 
+        [Category("iwyu options")]
+        [DisplayName("Additional Parameters")]
+        [Description("This string is inserted after all other parameters and before the filename of the file iwyu is running on.")]
+        public string AdditionalParameters { get; set; } = "";
+
         #endregion
 
         #region postprocessing
@@ -117,6 +122,7 @@ public override void SaveSettingsToStorage()
             settingsStore.SetBoolean(collectionName, nameof(PCHInCode), PCHInCode);
             settingsStore.SetInt32(collectionName, nameof(PrefixHeaderIncludes), (int)PrefixHeaderIncludes);
             settingsStore.SetBoolean(collectionName, nameof(TransitiveIncludesOnly), TransitiveIncludesOnly);
+            settingsStore.SetString(collectionName, nameof(AdditionalParameters), AdditionalParameters);
 
             settingsStore.SetBoolean(collectionName, nameof(ApplyProposal), ApplyProposal);
             settingsStore.SetBoolean(collectionName, nameof(RunIncludeFormatter), RunIncludeFormatter);
@@ -148,6 +154,8 @@ public override void LoadSettingsFromStorage()
                 PrefixHeaderIncludes = (PrefixHeaderMode)settingsStore.GetInt32(collectionName, nameof(PrefixHeaderIncludes));
             if (settingsStore.PropertyExists(collectionName, nameof(TransitiveIncludesOnly)))
                 TransitiveIncludesOnly = settingsStore.GetBoolean(collectionName, nameof(TransitiveIncludesOnly));
+            if (settingsStore.PropertyExists(collectionName, nameof(AdditionalParameters)))
+                AdditionalParameters = settingsStore.GetString(collectionName, nameof(AdditionalParameters));
 
             if (settingsStore.PropertyExists(collectionName, nameof(ApplyProposal)))
                 ApplyProposal = settingsStore.GetBoolean(collectionName, nameof(ApplyProposal));