Rename FunctionInstance to Function

Jint.Tests.PublicInterface/PublicInterfaceTests.cs

@@ -50,7 +50,7 @@ public SetTimeoutEmulator(Engine engine)
                     {
                         lock (_engine)
                         {
-                            if (queueEntry is FunctionInstance fi)
+                            if (queueEntry is Function fi)
                             {
                                 _engine.Invoke(fi);
                             }

Jint.Tests/Runtime/FunctionTests.cs

@@ -222,15 +222,15 @@ public void CanInvokeCallForFunctionInstance()
                     function foo(a = 123) { return a; }
                     foo()
                 })")
-            .As<FunctionInstance>().Call();
+            .As<Function>().Call();
 
         var result = _engine.Evaluate(@"
                 (function () {
                     class Foo { test() { return 123 } }
                     let f = new Foo()
                     return f.test()
                 })")
-            .As<FunctionInstance>().Call();
+            .As<Function>().Call();
 
         Assert.True(result.IsInteger());
         Assert.Equal(123, result.AsInteger());

Jint/Engine.cs

@@ -448,7 +448,7 @@ internal ManualPromise RegisterPromise()
             var (resolve, reject) = promise.CreateResolvingFunctions();
 
 
-            Action<JsValue> SettleWith(FunctionInstance settle) => value =>
+            Action<JsValue> SettleWith(Function settle) => value =>
             {
                 settle.Call(JsValue.Undefined, new[] { value });
                 RunAvailableContinuations();
@@ -759,7 +759,7 @@ JsValue DoInvoke()
                 // ensure logic is in sync between Call, Construct, engine.Invoke and JintCallExpression!
                 JsValue result;
                 var thisObject = JsValue.FromObject(this, thisObj);
-                if (callable is FunctionInstance functionInstance)
+                if (callable is Function functionInstance)
                 {
                     var callStack = CallStack;
                     callStack.Push(functionInstance, expression: null, ExecutionContext);
@@ -1023,11 +1023,11 @@ internal JsValue ResolveThisBinding()
         /// https://tc39.es/ecma262/#sec-functiondeclarationinstantiation
         /// </summary>
         internal JsArguments? FunctionDeclarationInstantiation(
-            FunctionInstance functionInstance,
+            Function function,
             JsValue[] argumentsList)
         {
             var calleeContext = ExecutionContext;
-            var func = functionInstance._functionDefinition;
+            var func = function._functionDefinition;
 
             var env = (FunctionEnvironment) ExecutionContext.LexicalEnvironment;
             var strict = _isStrict || StrictModeScope.IsStrictModeCode;
@@ -1053,7 +1053,7 @@ internal JsValue ResolveThisBinding()
                 {
                     // NOTE: mapped argument object is only provided for non-strict functions that don't have a rest parameter,
                     // any parameter default value initializers, or any destructured parameters.
-                    ao = CreateMappedArgumentsObject(functionInstance, parameterNames, argumentsList, env, configuration.HasRestParameter);
+                    ao = CreateMappedArgumentsObject(function, parameterNames, argumentsList, env, configuration.HasRestParameter);
                 }
 
                 if (strict)
@@ -1164,7 +1164,7 @@ internal JsValue ResolveThisBinding()
         }
 
         private JsArguments CreateMappedArgumentsObject(
-            FunctionInstance func,
+            Function func,
             Key[] formals,
             JsValue[] argumentsList,
             DeclarativeEnvironment envRec,
@@ -1435,7 +1435,7 @@ JsValue Callback()
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         internal JsValue Call(ICallable callable, JsValue thisObject, JsValue[] arguments, JintExpression? expression)
         {
-            if (callable is FunctionInstance functionInstance)
+            if (callable is Function functionInstance)
             {
                 return Call(functionInstance, thisObject, arguments, expression);
             }
@@ -1482,26 +1482,26 @@ ObjectInstance Callback()
             JsValue newTarget,
             JintExpression? expression)
         {
-            if (constructor is FunctionInstance functionInstance)
+            if (constructor is Function functionInstance)
             {
                 return Construct(functionInstance, arguments, newTarget, expression);
             }
 
             return ((IConstructor) constructor).Construct(arguments, newTarget);
         }
 
-        internal JsValue Call(FunctionInstance functionInstance, JsValue thisObject)
-            => Call(functionInstance, thisObject, Arguments.Empty, null);
+        internal JsValue Call(Function function, JsValue thisObject)
+            => Call(function, thisObject, Arguments.Empty, null);
 
         internal JsValue Call(
-            FunctionInstance functionInstance,
+            Function function,
             JsValue thisObject,
             JsValue[] arguments,
             JintExpression? expression)
         {
             // ensure logic is in sync between Call, Construct, engine.Invoke and JintCallExpression!
 
-            var recursionDepth = CallStack.Push(functionInstance, expression, ExecutionContext);
+            var recursionDepth = CallStack.Push(function, expression, ExecutionContext);
 
             if (recursionDepth > Options.Constraints.MaxRecursionDepth)
             {
@@ -1512,7 +1512,7 @@ internal JsValue Call(FunctionInstance functionInstance, JsValue thisObject)
             JsValue result;
             try
             {
-                result = functionInstance.Call(thisObject, arguments);
+                result = function.Call(thisObject, arguments);
             }
             finally
             {
@@ -1527,14 +1527,14 @@ internal JsValue Call(FunctionInstance functionInstance, JsValue thisObject)
         }
 
         private ObjectInstance Construct(
-            FunctionInstance functionInstance,
+            Function function,
             JsValue[] arguments,
             JsValue newTarget,
             JintExpression? expression)
         {
             // ensure logic is in sync between Call, Construct, engine.Invoke and JintCallExpression!
 
-            var recursionDepth = CallStack.Push(functionInstance, expression, ExecutionContext);
+            var recursionDepth = CallStack.Push(function, expression, ExecutionContext);
 
             if (recursionDepth > Options.Constraints.MaxRecursionDepth)
             {
@@ -1545,7 +1545,7 @@ internal JsValue Call(FunctionInstance functionInstance, JsValue thisObject)
             ObjectInstance result;
             try
             {
-                result = ((IConstructor) functionInstance).Construct(arguments, newTarget);
+                result = ((IConstructor) function).Construct(arguments, newTarget);
             }
             finally
             {

Jint/JsValueExtensions.cs

@@ -469,9 +469,9 @@ public static double[] AsFloat64Array(this JsValue value)
 
     [Pure]
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static FunctionInstance AsFunctionInstance(this JsValue value)
+    public static Function AsFunctionInstance(this JsValue value)
     {
-        if (value is not FunctionInstance instance)
+        if (value is not Function instance)
         {
             ThrowWrongTypeException(value, "FunctionInstance");
             return null!;

Jint/Native/Argument/JsArguments.cs

@@ -18,7 +18,7 @@ internal sealed class JsArguments : ObjectInstance
         // cache property container for array iteration for less allocations
         private static readonly ThreadLocal<HashSet<string>> _mappedNamed = new(() => new HashSet<string>(StringComparer.Ordinal));
 
-        private FunctionInstance _func = null!;
+        private Function.Function _func = null!;
         private Key[] _names = null!;
         private JsValue[] _args = null!;
         private DeclarativeEnvironment _env = null!;
@@ -32,7 +32,7 @@ internal JsArguments(Engine engine)
         }
 
         internal void Prepare(
-            FunctionInstance func,
+            Function.Function func,
             Key[] names,
             JsValue[] args,
             DeclarativeEnvironment env,

Jint/Native/Constructor.cs

@@ -4,7 +4,7 @@
 
 namespace Jint.Native;
 
-public abstract class Constructor : FunctionInstance, IConstructor
+public abstract class Constructor : Function.Function, IConstructor
 {
     protected Constructor(Engine engine, string name) : this(engine, engine.Realm, new JsString(name))
     {

Jint/Native/Function/BindFunction.cs

@@ -42,7 +42,7 @@ public sealed class BindFunction : ObjectInstance, IConstructor, ICallable
 
         JsValue ICallable.Call(JsValue thisObject, JsValue[] arguments)
         {
-            var f = BoundTargetFunction as FunctionInstance;
+            var f = BoundTargetFunction as Function;
             if (f is null)
             {
                 ExceptionHelper.ThrowTypeError(_realm);
@@ -78,7 +78,7 @@ ObjectInstance IConstructor.Construct(JsValue[] arguments, JsValue newTarget)
 
         internal override bool OrdinaryHasInstance(JsValue v)
         {
-            var f = BoundTargetFunction as FunctionInstance;
+            var f = BoundTargetFunction as Function;
             if (f is null)
             {
                 ExceptionHelper.ThrowTypeError(_realm);

Jint/Native/Function/EvalFunctionInstance.cs → Jint/Native/Function/EvalFunction.cs

@@ -9,14 +9,14 @@
 
 namespace Jint.Native.Function;
 
-internal sealed class EvalFunctionInstance : FunctionInstance
+internal sealed class EvalFunction : Function
 {
     private static readonly JsString _functionName = new("eval");
 
     private static readonly ParserOptions _parserOptions = ParserOptions.Default with { Tolerant = true };
     private readonly JavaScriptParser _parser = new(_parserOptions);
 
-    public EvalFunctionInstance(
+    public EvalFunction(
         Engine engine,
         Realm realm,
         FunctionPrototype functionPrototype)

Jint/Native/Function/FunctionInstance.cs → Jint/Native/Function/Function.cs

@@ -12,7 +12,9 @@
 namespace Jint.Native.Function
 {
     [DebuggerDisplay("{ToString(),nq}")]
-    public abstract partial class FunctionInstance : ObjectInstance, ICallable
+#pragma warning disable MA0049
+    public abstract partial class Function : ObjectInstance, ICallable
+#pragma warning restore MA0049
     {
         protected PropertyDescriptor? _prototypeDescriptor;
 
@@ -29,15 +31,15 @@ public abstract partial class FunctionInstance : ObjectInstance, ICallable
         internal PrivateEnvironment? _privateEnvironment;
         private readonly IScriptOrModule? _scriptOrModule;
 
-        protected FunctionInstance(
+        protected Function(
             Engine engine,
             Realm realm,
             JsString? name)
             : this(engine, realm, name, FunctionThisMode.Global)
         {
         }
 
-        internal FunctionInstance(
+        internal Function(
             Engine engine,
             Realm realm,
             JintFunctionDefinition function,
@@ -53,7 +55,7 @@ public abstract partial class FunctionInstance : ObjectInstance, ICallable
             _environment = env;
         }
 
-        internal FunctionInstance(
+        internal Function(
             Engine engine,
             Realm realm,
             JsString? name,
@@ -250,7 +252,7 @@ internal ObjectInstance GetPrototypeFromConstructor(JsValue constructor, Func<In
         /// </summary>
         internal Realm GetFunctionRealm(JsValue obj)
         {
-            if (obj is FunctionInstance functionInstance && functionInstance._realm is not null)
+            if (obj is Function functionInstance && functionInstance._realm is not null)
             {
                 return functionInstance._realm;
             }

Jint/Native/Function/FunctionConstructor.cs

@@ -47,7 +47,7 @@ public override ObjectInstance Construct(JsValue[] arguments, JsValue newTarget)
         /// <summary>
         /// https://tc39.es/ecma262/#sec-runtime-semantics-instantiatefunctionobject
         /// </summary>
-        internal FunctionInstance InstantiateFunctionObject(
+        internal Function InstantiateFunctionObject(
             JintFunctionDefinition functionDeclaration,
             Environment scope,
             PrivateEnvironment? privateEnv)

Jint/Native/Function/FunctionInstance.Dynamic.cs

@@ -8,14 +8,16 @@
 
 namespace Jint.Native.Function;
 
-public partial class FunctionInstance
+#pragma warning disable MA0049
+public partial class Function
+#pragma warning restore MA0049
 {
     private static readonly JsString _functionNameAnonymous = new JsString("anonymous");
 
     /// <summary>
     /// https://tc39.es/ecma262/#sec-createdynamicfunction
     /// </summary>
-    internal FunctionInstance CreateDynamicFunction(
+    internal Function CreateDynamicFunction(
         ObjectInstance constructor,
         JsValue newTarget,
         FunctionKind kind,
@@ -157,7 +159,7 @@ public partial class FunctionInstance
         PrivateEnvironment? privateEnv = null;
 
         var definition = new JintFunctionDefinition(function);
-        FunctionInstance F = OrdinaryFunctionCreate(proto, definition, function.Strict ? FunctionThisMode.Strict : FunctionThisMode.Global, scope, privateEnv);
+        Function F = OrdinaryFunctionCreate(proto, definition, function.Strict ? FunctionThisMode.Strict : FunctionThisMode.Global, scope, privateEnv);
         F.SetFunctionName(_functionNameAnonymous, force: true);
 
         if (kind == FunctionKind.Generator)

Jint/Native/Function/FunctionPrototype.cs

@@ -13,7 +13,7 @@ namespace Jint.Native.Function
     /// <summary>
     /// https://tc39.es/ecma262/#sec-properties-of-the-function-prototype-object
     /// </summary>
-    internal sealed class FunctionPrototype : FunctionInstance
+    internal sealed class FunctionPrototype : Function
     {
         internal FunctionPrototype(
             Engine engine,

Jint/Native/Function/ScriptFunction.cs

@@ -9,7 +9,7 @@
 
 namespace Jint.Native.Function
 {
-    public sealed class ScriptFunction : FunctionInstance, IConstructor
+    public sealed class ScriptFunction : Function, IConstructor
     {
         internal bool _isClassConstructor;
         internal JsValue? _classFieldInitializerName;

Jint/Native/Function/ThrowTypeError.cs

@@ -3,7 +3,7 @@
 
 namespace Jint.Native.Function
 {
-    internal sealed class ThrowTypeError : FunctionInstance
+    internal sealed class ThrowTypeError : Function
     {
         public ThrowTypeError(Engine engine, Realm realm)
             : base(engine, realm, null)

Jint/Native/Object/ObjectInstance.Private.cs

@@ -90,7 +90,7 @@ internal JsValue PrivateGet(PrivateName property)
             ExceptionHelper.ThrowTypeError(_engine.Realm, $"'#{property}' was defined without a getter");
         }
 
-        var functionInstance = (FunctionInstance) getter;
+        var functionInstance = (Function.Function) getter;
         var privateGet = functionInstance._engine.Call(functionInstance, this);
         return privateGet;
     }
@@ -144,7 +144,7 @@ internal sealed class ClassFieldDefinition
 
 internal sealed class ClassStaticBlockDefinition
 {
-    public required FunctionInstance BodyFunction { get; set; }
+    public required Function.Function BodyFunction { get; set; }
 }
 
 internal sealed class PrivateElement

Jint/Native/Object/ObjectInstance.cs

@@ -422,7 +422,7 @@ private static JsValue UnwrapFromGetter(PropertyDescriptor desc, JsValue thisObj
                 return Undefined;
             }
 
-            var functionInstance = (FunctionInstance) getter;
+            var functionInstance = (Function.Function) getter;
             return functionInstance._engine.Call(functionInstance, thisObject);
         }
 
@@ -614,7 +614,7 @@ private bool SetUnlikely(JsValue property, JsValue value, JsValue receiver)
                 }
             }
 
-            if (ownDesc.Set is not FunctionInstance setter)
+            if (ownDesc.Set is not Function.Function setter)
             {
                 return false;
             }
@@ -1646,7 +1646,7 @@ internal static void DefineField(ObjectInstance receiver, ClassFieldDefinition f
             if (initializer is not null)
             {
                 initValue = receiver._engine.Call(initializer, receiver);
-                if (initValue is FunctionInstance functionInstance)
+                if (initValue is Function.Function functionInstance)
                 {
                     functionInstance.SetFunctionName(fieldName);
                 }

Jint/Native/Promise/JsPromise.cs

@@ -26,8 +26,8 @@ JsValue Handler
 );
 
 internal sealed record ResolvingFunctions(
-    FunctionInstance Resolve,
-    FunctionInstance Reject
+    Function.Function Resolve,
+    Function.Function Reject
 );
 
 public sealed record ManualPromise(