Files generated by source generator have relative path (fix #876)

Author: josefpihrt

src/Analyzers/CSharp/Analysis/AnalyzerOptionIsObsoleteAnalyzer.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Immutable;
+using System.IO;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 
@@ -50,6 +51,10 @@ public override void Initialize(AnalysisContext context)
 
                 compilationContext.RegisterSyntaxTreeAction(context =>
                 {
+                    // files generated by source generator have relative path
+                    if (!Path.IsPathRooted(context.Tree.FilePath))
+                        return;
+
                     if (!CommonDiagnosticRules.AnalyzerOptionIsObsolete.IsEffective(context.Tree, compilationOptions, context.CancellationToken))
                         return;
 

src/Analyzers/CSharp/Analysis/RequiredConfigOptionNotSetAnalyzer.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Immutable;
+using System.IO;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 
@@ -50,6 +51,10 @@ public override void Initialize(AnalysisContext context)
 
                 compilationContext.RegisterSyntaxTreeAction(context =>
                 {
+                    // files generated by source generator have relative path
+                    if (!Path.IsPathRooted(context.Tree.FilePath))
+                        return;
+
                     if (!CommonDiagnosticRules.RequiredConfigOptionNotSet.IsEffective(context.Tree, compilationOptions, context.CancellationToken))
                         return;
 

src/Formatting.Analyzers/CSharp/AnalyzerOptionIsObsoleteAnalyzer.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Immutable;
+using System.IO;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 
@@ -46,6 +47,10 @@ public override void Initialize(AnalysisContext context)
 
                 compilationContext.RegisterSyntaxTreeAction(context =>
                 {
+                    // files generated by source generator have relative path
+                    if (!Path.IsPathRooted(context.Tree.FilePath))
+                        return;
+
                     if (!CommonDiagnosticRules.AnalyzerOptionIsObsolete.IsEffective(context.Tree, compilationOptions, context.CancellationToken))
                         return;
 

src/Formatting.Analyzers/CSharp/RequiredConfigOptionNotSetAnalyzer.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Immutable;
+using System.IO;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 
@@ -46,6 +47,10 @@ public override void Initialize(AnalysisContext context)
 
                 compilationContext.RegisterSyntaxTreeAction(context =>
                 {
+                    // files generated by source generator have relative path
+                    if (!Path.IsPathRooted(context.Tree.FilePath))
+                        return;
+
                     if (!CommonDiagnosticRules.RequiredConfigOptionNotSet.IsEffective(context.Tree, compilationOptions, context.CancellationToken))
                         return;