Implement DefineConstant for Context

nilproject · nilproject · commit 3757a76db1f0 · 2023-01-18T13:24:15.000+03:00
diff --git a/NiL.JS/Core/Context.cs b/NiL.JS/Core/Context.cs
@@ -313,12 +313,12 @@ internal Context GetRunningContextFor(Function function, out Context prevContext
             return null;
         }
 
-        internal virtual void ReplaceVariableInstance(string name, JSValue instance)
+        public virtual JSValue DefineConstant(string name, JSValue value, bool deletable = false)
         {
-            if (_variables != null && _variables.ContainsKey(name))
-                _variables[name] = instance;
-            else
-                _parent?.ReplaceVariableInstance(name, instance);
+            var v = DefineVariable(name, deletable);
+            v.Assign(value);
+            v._attributes |= JSValueAttributesInternal.ReadOnly;
+            return v;
         }
 
         public virtual JSValue DefineVariable(string name, bool deletable = false)

Original file line number	Diff line number	Diff line change
`@@ -313,12 +313,12 @@ internal Context GetRunningContextFor(Function function, out Context prevContext`
`313`	`313`	`return null;`
`314`	`314`	`}`
`315`	`315`
`316`		`- internal virtual void ReplaceVariableInstance(string name, JSValue instance)`
	`316`	`+ public virtual JSValue DefineConstant(string name, JSValue value, bool deletable = false)`
`317`	`317`	`{`
`318`		`- if (_variables != null && _variables.ContainsKey(name))`
`319`		`- _variables[name] = instance;`
`320`		`- else`
`321`		`- _parent?.ReplaceVariableInstance(name, instance);`
	`318`	`+ var v = DefineVariable(name, deletable);`
	`319`	`+ v.Assign(value);`
	`320`	`+ v._attributes \|= JSValueAttributesInternal.ReadOnly;`
	`321`	`+ return v;`
`322`	`322`	`}`
`323`	`323`
`324`	`324`	`public virtual JSValue DefineVariable(string name, bool deletable = false)`