From ad59f2dea0c85945e79dc2960774af1e14cbcb9f Mon Sep 17 00:00:00 2001
From: nenoNaninu <neno@melonpan.pro>
Date: Fri, 3 Nov 2023 01:46:43 +0900
Subject: [PATCH 1/3] support const field

---
 .../SourceGenerator.cs                        | 28 ++++++++++++++-----
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
index 294b48e..803d614 100644
--- a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
+++ b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
@@ -81,13 +81,7 @@ private static SourceSymbol TransformToSourceSymbol(GeneratorSyntaxContext conte
             return default;
         }
 
-        if (arguments[0].Expression.Kind() != SyntaxKind.StringLiteralExpression)
-        {
-            return default;
-        }
-
-        var literal = arguments[0].Expression as LiteralExpressionSyntax;
-        var path = literal?.Token.ValueText;
+        var path = GetPath(context, arguments[0].Expression);
 
         if (string.IsNullOrEmpty(path))
         {
@@ -104,6 +98,26 @@ private static SourceSymbol TransformToSourceSymbol(GeneratorSyntaxContext conte
         return new SourceSymbol(methodSymbol, target.GetLocation(), path!);
     }
 
+    private static string? GetPath(GeneratorSyntaxContext context, ExpressionSyntax syntax)
+    {
+        var symbol = context.SemanticModel.GetSymbolInfo(syntax).Symbol;
+
+        if (symbol is IFieldSymbol field
+            && field.IsConst
+            && field.ConstantValue is string value)
+        {
+            return value;
+        }
+
+        if (syntax.Kind() == SyntaxKind.StringLiteralExpression
+            && syntax is LiteralExpressionSyntax literal)
+        {
+            return literal.Token.ValueText;
+        }
+
+        return null;
+    }
+
     private static ValidatedSourceSymbol ValidateMapHubMethodSymbol((SourceSymbol, SpecialSymbols) pair, CancellationToken cancellationToken)
     {
         cancellationToken.ThrowIfCancellationRequested();

From d5ac1112405815bb8f46cf9b3880877391a2d09a Mon Sep 17 00:00:00 2001
From: nenoNaninu <neno@melonpan.pro>
Date: Fri, 3 Nov 2023 02:07:55 +0900
Subject: [PATCH 2/3] refactor

---
 .../SourceGenerator.cs                               | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
index 803d614..cc44b8d 100644
--- a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
+++ b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
@@ -100,6 +100,12 @@ private static SourceSymbol TransformToSourceSymbol(GeneratorSyntaxContext conte
 
     private static string? GetPath(GeneratorSyntaxContext context, ExpressionSyntax syntax)
     {
+        if (syntax.Kind() == SyntaxKind.StringLiteralExpression
+            && syntax is LiteralExpressionSyntax literal)
+        {
+            return literal.Token.ValueText;
+        }
+
         var symbol = context.SemanticModel.GetSymbolInfo(syntax).Symbol;
 
         if (symbol is IFieldSymbol field
@@ -109,12 +115,6 @@ private static SourceSymbol TransformToSourceSymbol(GeneratorSyntaxContext conte
             return value;
         }
 
-        if (syntax.Kind() == SyntaxKind.StringLiteralExpression
-            && syntax is LiteralExpressionSyntax literal)
-        {
-            return literal.Token.ValueText;
-        }
-
         return null;
     }
 

From 539e25b4ab4d1c1f8a03de133930975c35fa31f4 Mon Sep 17 00:00:00 2001
From: nenoNaninu <neno@melonpan.pro>
Date: Fri, 3 Nov 2023 11:54:56 +0900
Subject: [PATCH 3/3] support local constant

---
 .../SourceGenerator.cs                                | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
index cc44b8d..34d33a2 100644
--- a/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
+++ b/src/TypedSignalR.Client.DevTools.Specification/SourceGenerator.cs
@@ -110,9 +110,16 @@ private static SourceSymbol TransformToSourceSymbol(GeneratorSyntaxContext conte
 
         if (symbol is IFieldSymbol field
             && field.IsConst
-            && field.ConstantValue is string value)
+            && field.ConstantValue is string fieldValue)
         {
-            return value;
+            return fieldValue;
+        }
+
+        if (symbol is ILocalSymbol local
+            && local.IsConst
+            && local.ConstantValue is string localValue)
+        {
+            return localValue;
         }
 
         return null;