Define fallback scope in TemplateOptions (#263)

sebastienros · Feb 10, 2021 · e1555e3 · e1555e3
1 parent 0a007c6
commit e1555e3
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Showing 3 changed files with 30 additions and 2 deletions.
diff --git a/Fluid.Tests/TemplateContextTests.cs b/Fluid.Tests/TemplateContextTests.cs
@@ -1,4 +1,5 @@
-using System;
+using Fluid.Values;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -28,5 +29,26 @@ private static async Task Register()
             var templateContext = new TemplateContext();
             templateContext.Options.MemberAccessStrategy.Register(typeof(TestClass));
         }
+
+
+        [Fact]
+        public void ScopeShouldFallbackToTemplateOptions()
+        {
+            var parser = new FluidParser();
+
+            parser.TryParse("{{ p.NaMe }}", out var template, out var error);
+
+            var options = new TemplateOptions();
+            options.Scope.SetValue("o1", new StringValue("o1"));
+            options.Scope.SetValue("o2", new StringValue("o2"));
+
+            var context = new TemplateContext(options);
+            context.SetValue("o2", "new o2");
+            context.SetValue("o3", "o3");
+
+            Assert.Equal("o1", context.GetValue("o1").ToStringValue());
+            Assert.Equal("new o2", context.GetValue("o2").ToStringValue());
+            Assert.Equal("o3", context.GetValue("o3").ToStringValue());
+        }
     }
 }
diff --git a/Fluid/TemplateContext.cs b/Fluid/TemplateContext.cs
@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.Threading.Tasks;
 
 namespace Fluid
 {
@@ -33,7 +34,7 @@ public TemplateContext(TemplateOptions options)
         {
             Options = options;
 
-            LocalScope = new Scope();
+            LocalScope = new Scope(options.Scope);
 
             LocalScope.SetValue("empty", NilValue.Empty);
             LocalScope.SetValue("blank", StringValue.Empty);

diff --git a/Fluid/TemplateOptions.cs b/Fluid/TemplateOptions.cs
@@ -45,6 +45,11 @@ public class TemplateOptions
         /// </summary>
         public FilterCollection Filters { get; } = new FilterCollection();
 
+        /// <summary>
+        /// Gets a scope that is available in all the templates.
+        /// </summary>
+        public Scope Scope { get; } = new Scope();
+
         /// <summary>
         /// Gets the list of value converters.
         /// </summary>