/// <summary>
/// Generates CIL for the in operator.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
private void GenerateIn(ILGenerator generator, OptimizationInfo optimizationInfo)
{
if (optimizationInfo.RootExpression == this)
{
// Return isn't in use. Do nothing.
Left.GenerateCode(generator, optimizationInfo);
Right.GenerateCode(generator, optimizationInfo);
generator.Pop();
generator.Pop();
return;
}
// Dynamic resolve required (The 'Evaluate' method above diverts away otherwise).
// Engine required:
EmitHelpers.LoadEngine(generator);
// Emit the object:
Right.GenerateCode(generator, optimizationInfo);
// Emit the left-hand side expression and convert it to a string.
Left.GenerateCode(generator, optimizationInfo);
EmitConversion.ToString(generator, Left.GetResultType(optimizationInfo));
// Property name is now on the stack too.
// Emit the property test:
generator.Call(ReflectionHelpers.Object_HasProperty);
}
/// <summary>
/// Generates CIL for the expression.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
public override void GenerateCode(ILGenerator generator, OptimizationInfo optimizationInfo)
{
// Setup the method info.
// this.context.SetupMethod(optimizationInfo);
// Add the generated method to the nested function list.
if (optimizationInfo.NestedFunctions == null)
{
optimizationInfo.NestedFunctions = new List <FunctionMethodGenerator>();
}
optimizationInfo.NestedFunctions.Add(context);
// Add all the nested methods to the parent list.
// Note: it's used to compute which variables are being hoisted.
if (this.context.Dependencies != null)
{
foreach (var nestedFunctionExpression in this.context.Dependencies)
{
optimizationInfo.NestedFunctions.Add(nestedFunctionExpression);
}
}
if (HoistValues != null)
{
// Script engine:
EmitHelpers.LoadEngine(generator);
// Method ID:
generator.LoadInt64(context.MethodID);
generator.LoadInt32(HoistValues.Count);
// Hoist vars array:
generator.NewArray(typeof(object));
// Load each one:
for (int i = 0; i < HoistValues.Count; i++)
{
generator.Duplicate();
generator.LoadInt32(i);
// Load the variable value:
Type type = HoistValues[i].Get(generator);
// Box if necessary:
EmitConversion.ToAny(generator, type);
generator.StoreArrayElement(typeof(object));
}
generator.NewObject(ReflectionHelpers.HoistFunctionReference_Constructor);
}
else
{
// body
generator.LoadInt64(context.MethodID);
generator.Call(ReflectionHelpers.MethodLookup_Load);
}
}
/// <summary>
/// Emits a JavaScriptException.
/// </summary>
/// <param name="generator"> The IL generator. </param>
/// <param name="name"> The type of error to generate. </param>
/// <param name="message"> The error message. </param>
/// <param name="path"> The path of the javascript source file that is currently executing. </param>
/// <param name="function"> The name of the currently executing function. </param>
/// <param name="line"> The line number of the statement that is currently executing. </param>
public static void EmitThrow(ILGenerator generator, string name, string message, string path, string function, int line)
{
EmitHelpers.LoadEngine(generator);
generator.LoadString(name);
generator.LoadString(message);
generator.LoadInt32(line);
generator.LoadStringOrNull(path);
generator.LoadStringOrNull(function);
generator.NewObject(ReflectionHelpers.JavaScriptException_Constructor_Error);
generator.Throw();
}
/// <summary>
/// Generates CIL for the statement.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
public override void GenerateCode(ILGenerator generator, OptimizationInfo optimizationInfo)
{
// Emit code to throw the given value.
EmitHelpers.LoadEngine(generator);
this.Value.GenerateCode(generator, optimizationInfo);
EmitConversion.ToAny(generator, this.Value.GetResultType(optimizationInfo));
generator.LoadInt32(1);
generator.LoadStringOrNull(optimizationInfo.Source.Path);
generator.LoadStringOrNull(optimizationInfo.FunctionName);
generator.NewObject(ReflectionHelpers.JavaScriptException_Constructor_Object);
generator.Throw();
}
/// <summary>
/// Pops the value on the stack, converts it to a javascript object, then pushes the result
/// onto the stack.
/// </summary>
/// <param name="generator"> The IL generator. </param>
/// <param name="fromType"> The type to convert from. </param>
/// <param name="path"> The path of the javascript source file that is currently executing. </param>
/// <param name="function"> The name of the currently executing function. </param>
public static void ToPrototype(ILGenerator generator, Type fromType, string path, string function)
{
if (fromType == typeof(Nitrassic.Undefined))
{
// Converting from undefined always throws an exception.
EmitHelpers.EmitThrow(generator, "TypeError", "Undefined cannot be converted to an object", path, function, 1);
}
else if (fromType == typeof(Nitrassic.Null))
{
// Converting from null always throws an exception.
EmitHelpers.EmitThrow(generator, "TypeError", "Null cannot be converted to an object", path, function, 1);
}
else
{
// Otherwise, fall back to calling TypeConverter.ToPrototype()
ToAny(generator, fromType);
EmitHelpers.LoadEngine(generator);
generator.Call(ReflectionHelpers.TypeConverter_ToPrototype);
}
}
/// <summary>
/// Generates CIL for the statement.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
public override void GenerateCode(ILGenerator generator, OptimizationInfo optimizationInfo)
{
// Get the previous root - we'll be changing it:
Expression prevRoot = optimizationInfo.RootExpression;
List <string> labels = optimizationInfo.Labels;
optimizationInfo.Labels = null;
// Construct a loop expression.
// var enumerator = TypeUtilities.EnumeratePropertyNames(rhs).GetEnumerator();
// while (true) {
// continue-target:
// if (enumerator.MoveNext() == false)
// goto break-target;
// lhs = enumerator.Current;
//
// <body statements>
// }
// break-target:
// Call IEnumerable<string> EnumeratePropertyNames(ScriptEngine engine, object obj)
// optimizationInfo.MarkSequencePoint(generator, this.TargetObjectSourceSpan);
EmitHelpers.LoadEngine(generator);
this.TargetObject.GenerateCode(generator, optimizationInfo);
EmitConversion.ToAny(generator, this.TargetObject.GetResultType(optimizationInfo));
generator.Call(ReflectionHelpers.TypeUtilities_EnumeratePropertyNames);
// Store the enumerator in a temporary variable.
var enumerator = generator.CreateTemporaryVariable(typeof(IEnumerator <string>));
generator.StoreVariable(enumerator);
var breakTarget = generator.CreateLabel();
var continueTarget = generator.DefineLabelPosition();
// Emit debugging information.
// if (optimizationInfo.DebugDocument != null)
// generator.MarkSequencePoint(optimizationInfo.DebugDocument, this.VariableSourceSpan);
// if (enumerator.MoveNext() == false)
// goto break-target;
generator.LoadVariable(enumerator);
generator.Call(ReflectionHelpers.IEnumerator_MoveNext);
generator.BranchIfFalse(breakTarget);
// lhs = enumerator.Current;
this.Variable.GenerateSet(generator, optimizationInfo, false, typeof(string), delegate(bool two){
generator.LoadVariable(enumerator);
generator.Call(ReflectionHelpers.IEnumerator_Current);
if (two)
{
generator.Duplicate();
}
}, false);
// Emit the body statement(s).
optimizationInfo.PushBreakOrContinueInfo(labels, breakTarget, continueTarget, false);
// Mark the body as root:
Body.SetRoot(optimizationInfo);
Body.GenerateCode(generator, optimizationInfo);
optimizationInfo.PopBreakOrContinueInfo();
generator.Branch(continueTarget);
generator.DefineLabelPosition(breakTarget);
// Restore root:
optimizationInfo.RootExpression = prevRoot;
}
/// <summary>
/// Generates CIL for the instanceof operator.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
private void GenerateInstanceOf(ILGenerator generator, OptimizationInfo optimizationInfo)
{
if (optimizationInfo.RootExpression == this)
{
Left.GenerateCode(generator, optimizationInfo);
Right.GenerateCode(generator, optimizationInfo);
generator.Pop();
generator.Pop();
return;
}
// Emit the left-hand side expression and convert it to an object.
this.Left.GenerateCode(generator, optimizationInfo);
EmitConversion.ToAny(generator, this.Left.GetResultType(optimizationInfo));
// Store the left-hand side expression in a temporary variable.
var temp = generator.CreateTemporaryVariable(typeof(object));
generator.StoreVariable(temp);
// Emit the right-hand side expression.
this.Right.GenerateCode(generator, optimizationInfo);
EmitConversion.ToAny(generator, this.Right.GetResultType(optimizationInfo));
// Check the right-hand side is a function - if not, throw an exception.
generator.IsInstance(typeof(Library.FunctionInstance));
generator.Duplicate();
var endOfTypeCheck = generator.CreateLabel();
generator.BranchIfNotNull(endOfTypeCheck);
// Throw an nicely formatted exception.
var rightValue = generator.CreateTemporaryVariable(typeof(object));
generator.StoreVariable(rightValue);
EmitHelpers.LoadEngine(generator);
generator.LoadString("TypeError");
generator.LoadString("The instanceof operator expected a function, but found '{0}' instead");
generator.LoadInt32(1);
generator.NewArray(typeof(object));
generator.Duplicate();
generator.LoadInt32(0);
generator.LoadVariable(rightValue);
generator.Call(ReflectionHelpers.TypeUtilities_TypeOf);
generator.StoreArrayElement(typeof(object));
generator.Call(ReflectionHelpers.String_Format);
generator.LoadInt32(1);
generator.LoadStringOrNull(optimizationInfo.Source.Path);
generator.LoadStringOrNull(optimizationInfo.FunctionName);
generator.NewObject(ReflectionHelpers.JavaScriptException_Constructor_Error);
generator.Throw();
generator.DefineLabelPosition(endOfTypeCheck);
generator.ReleaseTemporaryVariable(rightValue);
// Emit the engine for FunctionInstance_HasInstance:
EmitHelpers.LoadEngine(generator);
// Load the left-hand side expression from the temporary variable.
generator.LoadVariable(temp);
// Call FunctionInstance.HasInstance(object)
generator.Call(ReflectionHelpers.FunctionInstance_HasInstance);
// Allow the temporary variable to be reused.
generator.ReleaseTemporaryVariable(temp);
}
/// <summary>
/// Emits the arguments set.
/// </summary>
private void EmitArguments(ILGenerator generator, OptimizationInfo optimizationInfo)
{
// Get the args:
IList <Expression> arguments = null;
Expression argumentsOperand = null;
if (OperandCount > 1)
{
argumentsOperand = this.GetRawOperand(1);
ListExpression argList = argumentsOperand as ListExpression;
if (argList != null)
{
// Multiple parameters were recieved.
arguments = argList.Items;
// Set the operand to null so it doesn't try to emit it as a single arg:
argumentsOperand = null;
}
}
int paraCount = 0;
int parameterOffset = 0;
bool staticMethod = false;
System.Reflection.ParameterInfo[] paraSet = null;
IList <ArgVariable> argsSet = null;
if (UserDefined == null)
{
// - Is the first arg ScriptEngine?
// - Does it have thisObj / does it want an instance object?
paraSet = ResolvedMethod.GetParameters();
paraCount = paraSet.Length;
staticMethod = ResolvedMethod.IsStatic || ResolvedMethod.IsConstructor;
if (paraSet.Length > 0)
{
if (paraSet[0].ParameterType == typeof(ScriptEngine))
{
// Emit an engine reference now:
EmitHelpers.LoadEngine(generator);
parameterOffset++;
}
if (paraSet.Length > parameterOffset && paraSet[parameterOffset].Name == "thisObj")
{
// It's acting like an instance method.
parameterOffset++;
staticMethod = false;
}
}
if (!staticMethod)
{
// Generate the 'this' ref:
var baseExpression = ((MemberAccessExpression)this.Target).Base;
baseExpression.GenerateCode(generator, optimizationInfo);
}
}
else
{
// These are always static.
paraCount = UserDefined.Arguments.Count;
argsSet = UserDefined.Arguments;
// Skip 'this' - it's emitted separately:
parameterOffset = 1;
}
// Next, we're matching params starting from parameterOffset with the args,
// type casting if needed.
for (int i = parameterOffset; i < paraCount; i++)
{
Expression expression = null;
object defaultValue = null;
Type paramType = null;
if (paraSet == null)
{
// Get the type:
paramType = argsSet[i].Type;
}
else
{
// Get the parameter info:
var param = paraSet[i];
// Get the parameters type:
paramType = param.ParameterType;
// Get the default value:
defaultValue = param.RawDefaultValue;
// Is it a params array?
if (Attribute.IsDefined(param, typeof(ParamArrayAttribute)))
{
// It's always an array - get the element type:
paramType = paramType.GetElementType();
// For each of the remaining args..
int offset = i - parameterOffset;
int argCount = 0;
if (arguments != null)
{
// Get the full count:
argCount = arguments.Count;
}
else if (argumentsOperand != null)
{
// Just one arg and it's still hanging around.
argCount = offset + 1;
}
// Define an array:
generator.LoadInt32(argCount);
generator.NewArray(paramType);
for (int a = offset; a < argCount; a++)
{
if (arguments != null)
{
// One of many args:
expression = arguments[a];
}
else
{
// Just one arg:
expression = argumentsOperand;
}
generator.Duplicate();
generator.LoadInt32(a - offset);
expression.GenerateCode(generator, optimizationInfo);
Type res = expression.GetResultType(optimizationInfo);
EmitConversion.Convert(generator, res, paramType);
generator.StoreArrayElement(paramType);
}
// All done - can't be anymore.
break;
}
}
if (arguments != null && (i - parameterOffset) <= arguments.Count)
{
// Get one of many args:
expression = arguments[i - parameterOffset];
}
else if (argumentsOperand != null)
{
// Just the one argument.
expression = argumentsOperand;
// By setting it to null after, it can't get emitted again
// (in the event that this method actually accepts >1 args)
argumentsOperand = null;
}
if (expression == null)
{
// Emit whatever the default is for the parameters type:
if (defaultValue != null)
{
// Emit the default value:
EmitHelpers.EmitValue(generator, defaultValue);
}
else if (paramType.IsValueType)
{
// E.g. an integer 0
EmitHelpers.EmitValue(generator, Activator.CreateInstance(paramType));
}
else
{
// Just a null (a real one):
generator.LoadNull();
}
}
else if (expression is TemplateLiteralExpression)
{
// Tagged template literal.
TemplateLiteralExpression templateLiteral = (TemplateLiteralExpression)expression;
GenerateTemplateArgumentsArray(generator, optimizationInfo, templateLiteral);
return;
}
else
{
// Output the arg:
expression.GenerateCode(generator, optimizationInfo);
// Convert:
EmitConversion.Convert(generator, expression.GetResultType(optimizationInfo), paramType);
}
}
}
/// <summary>
/// Stores the value on the top of the stack in the reference.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
/// <param name="valueType"> The primitive type of the value that is on the top of the stack. </param>
/// <param name="throwIfUnresolvable"> <c>true</c> to throw a ReferenceError exception if
/// the name is unresolvable; <c>false</c> to create a new property instead. </param>
public void GenerateSet(ILGenerator generator, OptimizationInfo optimizationInfo, bool rIU, Type valueType, SetValueMethod value, bool throwIfUnresolvable)
{
if (ResolvedProperty == null)
{
// Dynamic property access
// -----------------------
// xxx = object.Set(x)
// Load the left-hand side:
var lhs = this.GetOperand(0);
// -- Begin args for Prototype.SetPropertyValue --
// Script engine (engine):
EmitHelpers.LoadEngine(generator);
// Put LHS object onto stack now (thisObj):
lhs.GenerateCode(generator, optimizationInfo);
// What type have we now got on the stack? Typically expected to be 'object'.
Type lhsType = lhs.GetResultType(optimizationInfo);
// Ensure it's boxed (still thisObj):
EmitConversion.ToAny(generator, lhsType);
// Load the property name and convert to a string.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
EmitConversion.ToString(generator, rhs.GetResultType(optimizationInfo));
if (rIU)
{
// Output the value now (twice):
value(true);
// We now have [obj][value][value] on the stack.
// Calling the set method would fail (as it'll operate on the duplicated value).
// So, we have to pop one off and re-add it after.
// In order for SetValue to work, we need to shove the 2nd copy into a temp variable.
ILLocalVariable localVar = generator.DeclareVariable(valueType);
// Store into the local:
generator.StoreVariable(localVar);
// Set the value:
generator.Call(ReflectionHelpers.Object_SetPropertyValue);
// Load from the local:
generator.LoadVariable(localVar);
}
else
{
// Output the value now:
value(false);
// Set the value:
generator.Call(ReflectionHelpers.Object_SetPropertyValue);
}
}
else if (isArrayIndex)
{
// Array indexer
// -------------
// object[index] = x
// Load the left-hand side and convert to an object instance.
var lhs = this.GetOperand(0);
lhs.GenerateCode(generator, optimizationInfo);
// Load the right-hand side and convert to int32/uint32/whatever the indexer function wants.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Convert the index:
EmitConversion.Convert(generator, rhs.GetResultType(optimizationInfo), ResolvedProperty.FirstIndexType);
// Call set:
ResolvedProperty.Set(generator, optimizationInfo, rIU, valueType, value);
}
else
{
// Named property modification (e.g. x.property = y)
// -------------------------------------------------
if (ResolvedProperty.HasEngine)
{
// Emit the engine ref:
EmitHelpers.LoadEngine(generator);
}
if (ResolvedProperty.HasAccessor)
{
// Load the left-hand side:
var lhs = GetOperand(0);
lhs.GenerateCode(generator, optimizationInfo);
}
// Target object is now on the stack.
// Set it:
ResolvedProperty.Set(generator, optimizationInfo, rIU, valueType, value);
}
}
/// <summary>
/// Pushes the value of the reference onto the stack.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
/// <param name="throwIfUnresolvable"> <c>true</c> to throw a ReferenceError exception if
/// the name is unresolvable; <c>false</c> to output <c>null</c> instead. </param>
public void GenerateGet(ILGenerator generator, OptimizationInfo optimizationInfo, bool throwIfUnresolvable)
{
if (ResolvedProperty == null)
{
// Dynamic access.
// optimizationInfo.TypeError("Attempted to get a property dynamically. Currently unsupported.");
// Load the left-hand side:
var lhs = this.GetOperand(0);
// -- Begin args for Prototype.GetPropertyValue --
// Script engine (engine):
EmitHelpers.LoadEngine(generator);
// Emit LHS to the stack (thisObj):
lhs.GenerateCode(generator, optimizationInfo);
// What type have we now got on the stack? Expected to be just 'object'.
Type lhsType = lhs.GetResultType(optimizationInfo);
// Ensure it's boxed (still thisObj):
EmitConversion.ToAny(generator, lhsType);
// Load the property name and convert to a string (property).
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
EmitConversion.ToString(generator, rhs.GetResultType(optimizationInfo));
// Get the value:
generator.Call(ReflectionHelpers.Object_GetPropertyValue);
// Either it's now on the stack, or we threw a null ref.
}
else if (isArrayIndex)
{
// Array indexer
// -------------
// xxx = object[index]
// Load the left-hand side
var lhs = this.GetOperand(0);
lhs.GenerateCode(generator, optimizationInfo);
// Load the right-hand side and convert to [theTypeHere] (typically int32).
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Convert the index:
EmitConversion.Convert(generator, rhs.GetResultType(optimizationInfo), ResolvedProperty.FirstIndexType);
// Emit a get for the indexer:
ResolvedProperty.Get(generator);
}
else
{
// Load the left-hand side and convert to an object instance.
var lhs = this.GetOperand(0);
if (ResolvedProperty != null)
{
if (ResolvedProperty.HasEngine)
{
// Emit the engine ref:
EmitHelpers.LoadEngine(generator);
}
if (ResolvedProperty.HasAccessor)
{
// Emit the 'this' obj:
lhs.GenerateCode(generator, optimizationInfo);
}
// Emit a get:
ResolvedProperty.Get(generator);
}
}
}
/// <summary>
/// Generates CIL for the expression.
/// </summary>
/// <param name="generator"> The generator to output the CIL to. </param>
/// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
public override void GenerateCode(ILGenerator generator, OptimizationInfo optimizationInfo)
{
// Literals cannot have side-effects so if a return value is not expected then generate
// nothing.
if (optimizationInfo.RootExpression == this)
{
return;
}
if (this.Value is int)
{
generator.LoadInt32((int)this.Value);
}
else if (this.Value is double)
{
generator.LoadDouble((double)this.Value);
}
else if (this.Value is string)
{
generator.LoadString((string)this.Value);
}
else if (this.Value is bool)
{
generator.LoadBoolean((bool)this.Value);
}
else if (this.Value is RegularExpressionLiteral)
{
// RegExp
var sharedRegExpVariable = optimizationInfo.GetRegExpVariable(generator, (RegularExpressionLiteral)this.Value);
var label1 = generator.CreateLabel();
var label2 = generator.CreateLabel();
// if (sharedRegExp == null) {
generator.LoadVariable(sharedRegExpVariable);
generator.LoadNull();
generator.BranchIfNotEqual(label1);
// sharedRegExp = Global.RegExp.OnConstruct(source, flags)
EmitHelpers.LoadPrototypes(generator);
generator.LoadField(ReflectionHelpers.PrototypeLookup_RegExp);
generator.LoadString(((RegularExpressionLiteral)this.Value).Pattern);
generator.LoadString(((RegularExpressionLiteral)this.Value).Flags);
generator.Call(ReflectionHelpers.RegExp_Construct);
generator.Duplicate();
generator.StoreVariable(sharedRegExpVariable);
// } else {
generator.Branch(label2);
generator.DefineLabelPosition(label1);
// Global.RegExp.OnConstruct(sharedRegExp, flags)
EmitHelpers.LoadPrototypes(generator);
generator.LoadField(ReflectionHelpers.PrototypeLookup_RegExp);
generator.LoadVariable(sharedRegExpVariable);
generator.LoadNull();
generator.Call(ReflectionHelpers.RegExp_Construct);
// }
generator.DefineLabelPosition(label2);
}
else if (this.Value == Null.Value)
{
// Null.
EmitHelpers.EmitNull(generator);
}
else if (this.Value == Undefined.Value)
{
// Undefined.
EmitHelpers.EmitUndefined(generator);
}
else if (this.Value is List <Expression> )
{
// Construct an array literal.
var arrayLiteral = (List <Expression>) this.Value;
// Operands for ArrayConstructor.New() are: an ArrayConstructor instance (ArrayConstructor), an array (object[])
// ArrayConstructor
EmitHelpers.LoadEngine(generator);
// object[]
generator.LoadInt32(arrayLiteral.Count);
generator.NewArray(typeof(object));
for (int i = 0; i < arrayLiteral.Count; i++)
{
// Operands for StoreArrayElement() are: an array (object[]), index (int), value (object).
// Array
generator.Duplicate();
// Index
generator.LoadInt32(i);
// Value
var elementExpression = arrayLiteral[i];
if (elementExpression == null)
{
generator.LoadNull();
}
else
{
elementExpression.GenerateCode(generator, optimizationInfo);
EmitConversion.ToAny(generator, elementExpression.GetResultType(optimizationInfo));
}
// Store the element value.
generator.StoreArrayElement(typeof(object));
}
// ArrayConstructor.New(object[])
generator.Call(ReflectionHelpers.Array_New);
}
else if (this.Value is List <KeyValuePair <Expression, Expression> > )
{
// This is an object literal.
var properties = (List <KeyValuePair <Expression, Expression> >) this.Value;
// We'll generate a prototype and a custom object type for it:
Library.Prototype proto = CreatedPrototype;
// Create a new object.
generator.NewObject(proto.TypeConstructor);
foreach (var keyValuePair in properties)
{
string propertyName = keyValuePair.Key.ToString();
Expression propertyValue = keyValuePair.Value;
// Duplicate the object ref:
generator.Duplicate();
// Add a new property to the object.
Type valueType = propertyValue.GetResultType(optimizationInfo);
// Get the property:
Library.PropertyVariable pv = proto.GetProperty(propertyName);
// Set it:
pv.Set(generator, optimizationInfo, false, valueType, delegate(bool two){
if (pv.IsConstant)
{
// Emit the constant:
EmitHelpers.EmitValue(generator, pv.ConstantValue);
}
else
{
// Write the value to set now:
propertyValue.GenerateCode(generator, optimizationInfo);
}
// Note: This one always ignores 'two'
});
}
}
else
{
throw new NotImplementedException("Unknown literal type.");
}
}
