/// <summary>
/// Pops the value from the top of the stack and stores it in the given local variable.
/// </summary>
/// <param name="variable"> The variable to store the value. </param>
public override void StoreVariable(ILLocalVariable variable)
{
if (variable as ReflectionEmitILLocalVariable == null)
{
throw new ArgumentNullException("variable");
}
this.generator.Emit(OpCodes.Stloc, ((ReflectionEmitILLocalVariable)variable).UnderlyingLocal);
}
/// <summary>
/// Outputs an instruction and a variable to the log.
/// </summary>
/// <param name="instruction"> The instruction to output. </param>
/// <param name="variable"> The variable to output. </param>
private void Log(string instruction, ILLocalVariable variable)
{
if (variable.Name == null)
{
LogInstruction(instruction, string.Format("V{0}", variable.Index));
}
else
{
LogInstruction(instruction, string.Format("V{0} ({1})", variable.Index, variable.Name));
}
}
/// <summary>
/// Indicates that the given temporary variable is no longer needed.
/// </summary>
/// <param name="temporaryVariable"> The temporary variable created using CreateTemporaryVariable(). </param>
public void ReleaseTemporaryVariable(ILLocalVariable temporaryVariable)
{
if (temporaryVariable == null)
{
throw new ArgumentNullException("temporaryVariable");
}
if (this.temporaryVariables == null)
{
this.temporaryVariables = new List <ILLocalVariable>();
}
this.temporaryVariables.Add(temporaryVariable);
}
/// <summary>
/// Pops the value from the top of the stack and stores it in the given local variable.
/// </summary>
/// <param name="variable"> The variable to store the value. </param>
public override void StoreVariable(ILLocalVariable variable)
{
Log("stloc", variable);
this.generator.StoreVariable(variable);
}
/// <summary>
/// Pushes the address of the given variable onto the stack.
/// </summary>
/// <param name="variable"> The variable whose address will be pushed. </param>
public override void LoadAddressOfVariable(ILLocalVariable variable)
{
Log("ldloca", variable);
this.generator.LoadAddressOfVariable(variable);
}
public TemporaryVariableExpression(ILLocalVariable variable)
{
this.variable = variable;
}
/// <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> /// Pops the value from the top of the stack and stores it in the given local variable. /// </summary> /// <param name="variable"> The variable to store the value. </param> public abstract void StoreVariable(ILLocalVariable variable);
/// <summary> /// Pushes the address of the given variable onto the stack. /// </summary> /// <param name="variable"> The variable whose address will be pushed. </param> public abstract void LoadAddressOfVariable(ILLocalVariable variable);
/// <summary> /// Pushes the value of the given variable onto the stack. /// </summary> /// <param name="variable"> The variable whose value will be pushed. </param> public abstract void LoadVariable(ILLocalVariable variable);