/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var rhs = GetOperand(1);
// Potentially transferring a constant here.
// Note that all of the others affect the source value in some way
// so this is the only one which can potentially transfer a constant like this.
object constValue = target.GetConstantValue();
// Store the value.
target.GenerateSet(generator, optimizationInfo, optimizationInfo.RootExpression != this, rhs.GetResultType(optimizationInfo), delegate(bool two)
{
// Generate the code:
if (constValue != null)
{
// Straight emit the constant value (Note that it could be a function - it handles that for us):
EmitHelpers.EmitValue(generator, constValue);
}
else
{
rhs.GenerateCode(generator, optimizationInfo);
}
if (two)
{
// Duplicate the value so it remains on the stack afterwards.
generator.Duplicate();
}
}, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Evaluate the left hand side first!
target.GenerateReference(generator, optimizationInfo);
// Load the value to assign.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Support the inferred function displayName property.
if (rhs is FunctionExpression)
{
((FunctionExpression)rhs).GenerateDisplayName(generator, optimizationInfo, target.ToString(), false);
}
// Store the RHS value so we can return it as the result of the expression.
var result = generator.CreateTemporaryVariable(rhs.ResultType);
generator.Duplicate();
generator.StoreVariable(result);
// Store the value.
target.GenerateSet(generator, optimizationInfo, rhs.ResultType, optimizationInfo.StrictMode);
// Restore the RHS value.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
/// <summary>
/// Generates CIL for a compound assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateCompoundAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Evaluate the left hand side only once.
target.GenerateReference(generator, optimizationInfo);
target.DuplicateReference(generator, optimizationInfo); // For the GenerateSet, later on.
// Load the value to assign.
var compoundOperator = new BinaryExpression(GetCompoundBaseOperator(this.OperatorType), new ReferenceGetExpression(target), this.GetOperand(1));
compoundOperator.GenerateCode(generator, optimizationInfo);
ILLocalVariable result = null;
if (optimizationInfo.IgnoreReturnValue != this)
{
// Store the resulting value so we can return it as the result of the expression.
result = generator.CreateTemporaryVariable(compoundOperator.ResultType);
generator.Duplicate();
generator.StoreVariable(result);
}
// Store the value.
target.GenerateSet(generator, optimizationInfo, compoundOperator.ResultType);
if (optimizationInfo.IgnoreReturnValue != this)
{
// Restore the expression result.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
else
{
optimizationInfo.ReturnValueWasNotGenerated = true;
}
}
/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Evaluate the left hand side first!
target.GenerateReference(generator, optimizationInfo);
// Load the value to assign.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
ILLocalVariable result = null;
if (optimizationInfo.IgnoreReturnValue != this)
{
// Store the RHS value so we can return it as the result of the expression.
result = generator.CreateTemporaryVariable(rhs.ResultType);
generator.Duplicate();
generator.StoreVariable(result);
}
// Store the value.
target.GenerateSet(generator, optimizationInfo, rhs.ResultType);
if (optimizationInfo.IgnoreReturnValue != this)
{
// Restore the RHS value.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
else
{
optimizationInfo.ReturnValueWasNotGenerated = true;
}
}
/// <summary>
/// Generates CIL for an increment or decrement 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>
/// <param name="target"> The target to modify. </param>
/// <param name="postfix"> <c>true</c> if this is the postfix version of the operator;
/// <c>false</c> otherwise. </param>
/// <param name="increment"> <c>true</c> if this is the increment operator; <c>false</c> if
/// this is the decrement operator. </param>
private void GenerateIncrementOrDecrement(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target, bool postfix, bool increment)
{
// Note: increment and decrement can produce a number that is out of range if the
// target is of type Int32. The only time this should happen is for a loop variable
// where the range has been carefully checked to make sure an out of range condition
// cannot happen.
// Store the value.
target.GenerateSet(generator, optimizationInfo, optimizationInfo.RootExpression != this, target.GetResultType(optimizationInfo) == typeof(int) ? typeof(int) : typeof(double), delegate(bool two)
{
// Get the target value.
target.GenerateGet(generator, optimizationInfo, true);
// Convert it to a number.
if (target.GetResultType(optimizationInfo) != typeof(int))
{
EmitConversion.ToNumber(generator, target.GetResultType(optimizationInfo));
}
// If this is PostIncrement or PostDecrement, duplicate the value so it can be produced as the return value.
if (postfix && two)
{
generator.Duplicate();
}
// Load the increment constant.
if (target.GetResultType(optimizationInfo) == typeof(int))
{
generator.LoadInt32(1);
}
else
{
generator.LoadDouble(1.0);
}
// Add or subtract the constant to the target value.
if (increment == true)
{
generator.Add();
}
else
{
generator.Subtract();
}
// If this is PreIncrement or PreDecrement, duplicate the value so it can be produced as the return value.
if (!postfix && two)
{
generator.Duplicate();
}
}, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for a compound assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateCompoundAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var compoundOperator = new BinaryExpression(GetCompoundBaseOperator(this.OperatorType), this.GetOperand(0), this.GetOperand(1));
compoundOperator.GenerateCode(generator, optimizationInfo);
// Duplicate the value so it remains on the stack afterwards.
//if (optimizationInfo.SuppressReturnValue == false)
generator.Duplicate();
// Store the value.
target.GenerateSet(generator, optimizationInfo, compoundOperator.ResultType, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for a compound assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateCompoundAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var compoundOperator = new BinaryExpression(GetCompoundBaseOperator(this.OperatorType), this.GetOperand(0), this.GetOperand(1));
// Store the value.
target.GenerateSet(generator, optimizationInfo, optimizationInfo.RootExpression != this, compoundOperator.GetResultType(optimizationInfo), delegate(bool two)
{
// Generate the code:
compoundOperator.GenerateCode(generator, optimizationInfo);
if (two)
{
// Duplicate the value so it remains on the stack afterwards.
generator.Duplicate();
}
}, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Support the inferred function displayName property.
if (rhs is FunctionExpression)
{
((FunctionExpression)rhs).GenerateDisplayName(generator, optimizationInfo, target.ToString(), false);
}
// Duplicate the value so it remains on the stack afterwards.
//if (optimizationInfo.SuppressReturnValue == false)
generator.Duplicate();
// Store the value.
target.GenerateSet(generator, optimizationInfo, rhs.ResultType, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for an increment or decrement 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>
/// <param name="target"> The target to modify. </param>
/// <param name="postfix"> <c>true</c> if this is the postfix version of the operator;
/// <c>false</c> otherwise. </param>
/// <param name="increment"> <c>true</c> if this is the increment operator; <c>false</c> if
/// this is the decrement operator. </param>
private void GenerateIncrementOrDecrement(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target, bool postfix, bool increment)
{
// Note: increment and decrement can produce a number that is out of range if the
// target is of type Int32. The only time this should happen is for a loop variable
// where the range has been carefully checked to make sure an out of range condition
// cannot happen.
// Evaluate the left hand side only once.
target.GenerateReference(generator, optimizationInfo);
target.DuplicateReference(generator, optimizationInfo); // For the GenerateSet, later on.
// Get the target value.
target.GenerateGet(generator, optimizationInfo, true);
// Convert it to a number.
if (target.Type != PrimitiveType.Int32)
{
EmitConversion.ToNumber(generator, target.Type);
}
// If this is PostIncrement or PostDecrement, store the value so it can be returned later.
var result = generator.CreateTemporaryVariable(target.Type == PrimitiveType.Int32 ? PrimitiveType.Int32 : PrimitiveType.Number);
if (postfix == true)
{
generator.Duplicate();
generator.StoreVariable(result);
}
// Load the increment constant.
if (target.Type == PrimitiveType.Int32)
{
generator.LoadInt32(1);
}
else
{
generator.LoadDouble(1.0);
}
// Add or subtract the constant to the target value.
if (increment == true)
{
generator.Add();
}
else
{
generator.Subtract();
}
// If this is PreIncrement or PreDecrement, store the value so it can be returned later.
if (postfix == false)
{
generator.Duplicate();
generator.StoreVariable(result);
}
// Store the value.
target.GenerateSet(generator, optimizationInfo, target.Type == PrimitiveType.Int32 ? PrimitiveType.Int32 : PrimitiveType.Number, optimizationInfo.StrictMode);
// Restore the expression result.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
/// <summary>
/// Generates CIL for an increment or decrement 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>
/// <param name="target"> The target to modify. </param>
/// <param name="postfix"> <c>true</c> if this is the postfix version of the operator;
/// <c>false</c> otherwise. </param>
/// <param name="increment"> <c>true</c> if this is the increment operator; <c>false</c> if
/// this is the decrement operator. </param>
private void GenerateIncrementOrDecrement(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target, bool postfix, bool increment)
{
// Note: increment and decrement can produce a number that is out of range if the
// target is of type Int32. The only time this should happen is for a loop variable
// where the range has been carefully checked to make sure an out of range condition
// cannot happen.
// Evaluate the left hand side only once.
target.GenerateReference(generator, optimizationInfo);
target.DuplicateReference(generator, optimizationInfo); // For the GenerateSet, later on.
// Get the target value.
target.GenerateGet(generator, optimizationInfo, true);
// Convert it to a number.
if (target.Type != PrimitiveType.Int32)
EmitConversion.ToNumber(generator, target.Type);
// If this is PostIncrement or PostDecrement, store the value so it can be returned later.
var result = generator.CreateTemporaryVariable(target.Type == PrimitiveType.Int32 ? PrimitiveType.Int32 : PrimitiveType.Number);
if (postfix == true)
{
generator.Duplicate();
generator.StoreVariable(result);
}
// Load the increment constant.
if (target.Type == PrimitiveType.Int32)
generator.LoadInt32(1);
else
generator.LoadDouble(1.0);
// Add or subtract the constant to the target value.
if (increment == true)
generator.Add();
else
generator.Subtract();
// If this is PreIncrement or PreDecrement, store the value so it can be returned later.
if (postfix == false)
{
generator.Duplicate();
generator.StoreVariable(result);
}
// Store the value.
target.GenerateSet(generator, optimizationInfo, target.Type == PrimitiveType.Int32 ? PrimitiveType.Int32 : PrimitiveType.Number, optimizationInfo.StrictMode);
// Restore the expression result.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
/// <summary>
/// Generates CIL for a compound assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateCompoundAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Evaluate the left hand side only once.
target.GenerateReference(generator, optimizationInfo);
target.DuplicateReference(generator, optimizationInfo); // For the GenerateSet, later on.
// Load the value to assign.
var compoundOperator = new BinaryExpression(GetCompoundBaseOperator(this.OperatorType), new ReferenceGetExpression(target), this.GetOperand(1));
compoundOperator.GenerateCode(generator, optimizationInfo);
// Store the resulting value so we can return it as the result of the expression.
var result = generator.CreateTemporaryVariable(compoundOperator.ResultType);
generator.Duplicate();
generator.StoreVariable(result);
// Store the value.
target.GenerateSet(generator, optimizationInfo, compoundOperator.ResultType, optimizationInfo.StrictMode);
// Restore the expression result.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Evaluate the left hand side first!
target.GenerateReference(generator, optimizationInfo);
// Load the value to assign.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Support the inferred function displayName property.
if (rhs is FunctionExpression)
((FunctionExpression)rhs).GenerateDisplayName(generator, optimizationInfo, target.ToString(), false);
// Store the RHS value so we can return it as the result of the expression.
var result = generator.CreateTemporaryVariable(rhs.ResultType);
generator.Duplicate();
generator.StoreVariable(result);
// Store the value.
target.GenerateSet(generator, optimizationInfo, rhs.ResultType, optimizationInfo.StrictMode);
// Restore the RHS value.
generator.LoadVariable(result);
generator.ReleaseTemporaryVariable(result);
}
/// <summary>
/// Generates CIL for a compound assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateCompoundAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var compoundOperator = new BinaryExpression(GetCompoundBaseOperator(this.OperatorType), this.GetOperand(0), this.GetOperand(1));
compoundOperator.GenerateCode(generator, optimizationInfo);
// Duplicate the value so it remains on the stack afterwards.
//if (optimizationInfo.SuppressReturnValue == false)
generator.Duplicate();
// Store the value.
target.GenerateSet(generator, optimizationInfo, compoundOperator.ResultType, optimizationInfo.StrictMode);
}
/// <summary>
/// Generates CIL for an assignment 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>
/// <param name="target"> The target to modify. </param>
private void GenerateAssignment(ILGenerator generator, OptimizationInfo optimizationInfo, IReferenceExpression target)
{
// Load the value to assign.
var rhs = this.GetOperand(1);
rhs.GenerateCode(generator, optimizationInfo);
// Support the inferred function displayName property.
if (rhs is FunctionExpression)
((FunctionExpression)rhs).GenerateDisplayName(generator, optimizationInfo, target.ToString(), false);
// Duplicate the value so it remains on the stack afterwards.
//if (optimizationInfo.SuppressReturnValue == false)
generator.Duplicate();
// Store the value.
target.GenerateSet(generator, optimizationInfo, rhs.ResultType, optimizationInfo.StrictMode);
}
