public override void Visit(IGreaterThan greaterThan)
{
if (Process(greaterThan))
{
visitor.Visit(greaterThan);
}
base.Visit(greaterThan);
}
private HLLocation ProcessGreaterThanExpression(IGreaterThan pExpression)
{
HLLocation locationLeftOperand = ProcessExpression(pExpression.LeftOperand);
HLLocation locationRightOperand = ProcessExpression(pExpression.RightOperand);
HLLocation locationTemporary = HLTemporaryLocation.Create(CreateTemporary(HLDomain.GetOrCreateType(pExpression.Type)));
mCurrentBlock.EmitCompare(HLCompareType.GreaterThan, locationTemporary, locationLeftOperand, locationRightOperand);
return(pExpression.ResultIsUnmodifiedLeftOperand ? locationLeftOperand : locationTemporary);
}
public override IExpression Rewrite(IGreaterThan greaterThan)
{
// Catch use of the x > null idiom used by Roslyn as generated
// code for x != null statements.
if (ExpressionHelper.IsNullLiteral(greaterThan.RightOperand))
{
var c = new NotEquality
{
LeftOperand = greaterThan.LeftOperand,
RightOperand = greaterThan.RightOperand,
Type = greaterThan.Type
};
return(c);
}
return(base.Rewrite(greaterThan));
}
public override IExpression Rewrite(IGreaterThan greaterThan)
{
var castIfPossible = greaterThan.LeftOperand as ICastIfPossible;
if (castIfPossible != null)
{
var compileTimeConstant = greaterThan.RightOperand as ICompileTimeConstant;
if (compileTimeConstant != null && compileTimeConstant.Value == null)
{
return(this.Rewrite(new CheckIfInstance()
{
Operand = castIfPossible.ValueToCast,
TypeToCheck = castIfPossible.TargetType,
Type = greaterThan.Type,
}));
}
}
return(base.Rewrite(greaterThan));
}
public override IExpression Rewrite(IGreaterThan greaterThan) {
var castIfPossible = greaterThan.LeftOperand as ICastIfPossible;
if (castIfPossible != null) {
var compileTimeConstant = greaterThan.RightOperand as ICompileTimeConstant;
if (compileTimeConstant != null && compileTimeConstant.Value == null) {
return this.Rewrite(new CheckIfInstance() {
Operand = castIfPossible.ValueToCast,
TypeToCheck = castIfPossible.TargetType,
Type = greaterThan.Type,
});
}
}
return base.Rewrite(greaterThan);
}
public override IExpression Rewrite(IGreaterThan operation)
{
return(ReplaceOperation(operation));
}
/// <summary>
///
/// </summary>
/// <param name="greaterThan"></param>
public GreaterThan(IGreaterThan greaterThan)
: base(greaterThan)
{
this.unsignedOrUnordered = greaterThan.IsUnsignedOrUnordered;
}
/// <summary>
/// Performs some computation with the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual void Visit(IGreaterThan greaterThan)
{
this.Visit((IBinaryOperation)greaterThan);
}
public void Visit(IGreaterThan greaterThan)
{
throw new NotImplementedException();
}
public override void TraverseChildren(IGreaterThan greaterThan)
{
base.TraverseChildren(greaterThan);
Bpl.Expr rexp = TranslatedExpressions.Pop();
Bpl.Expr lexp = TranslatedExpressions.Pop();
Bpl.Expr e;
switch (greaterThan.LeftOperand.Type.TypeCode) {
case PrimitiveTypeCode.Float32:
case PrimitiveTypeCode.Float64:
e = new Bpl.NAryExpr(
greaterThan.Token(),
new Bpl.FunctionCall(this.sink.Heap.RealGreaterThan),
new List<Bpl.Expr>(new Bpl.Expr[] {lexp, rexp})
);
break;
default:
e = Bpl.Expr.Binary(Bpl.BinaryOperator.Opcode.Gt, lexp, rexp);
break;
}
TranslatedExpressions.Push(e);
}
private HLLocation ProcessGreaterThanExpression(IGreaterThan pExpression)
{
HLLocation locationLeftOperand = ProcessExpression(pExpression.LeftOperand);
HLLocation locationRightOperand = ProcessExpression(pExpression.RightOperand);
HLLocation locationTemporary = HLTemporaryLocation.Create(CreateTemporary(HLDomain.GetOrCreateType(pExpression.Type)));
mCurrentBlock.EmitCompare(HLCompareType.GreaterThan, locationTemporary, locationLeftOperand, locationRightOperand);
return pExpression.ResultIsUnmodifiedLeftOperand ? locationLeftOperand : locationTemporary;
}
/// <summary>
/// Rewrites the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual IExpression Rewrite(IGreaterThan greaterThan)
{
return greaterThan;
}
public override void TraverseChildren(IGreaterThan greaterThan)
{ MethodEnter(greaterThan);
base.TraverseChildren(greaterThan);
MethodExit(); }
public override void TraverseChildren(IGreaterThan greaterThan)
{
base.TraverseChildren(greaterThan);
((GreaterThan)greaterThan).Type = this.platformType.SystemBoolean;
}
public override void Visit(IGreaterThan greaterThan)
{
allElements.Add(new InvokInfo(Traverser, "IGreaterThan", greaterThan));
}
/// <summary>
/// Generates IL for the specified greater than.
/// </summary>
/// <param name="greaterThan">The greater than.</param>
public override void TraverseChildren(IGreaterThan greaterThan)
{
this.Traverse(greaterThan.LeftOperand);
this.Traverse(greaterThan.RightOperand);
if (greaterThan.IsUnsignedOrUnordered)
this.generator.Emit(OperationCode.Cgt_Un);
else
this.generator.Emit(OperationCode.Cgt);
this.StackSize--;
}
public override void Visit(IGreaterThan greaterThan)
{
if(Process(greaterThan)){visitor.Visit(greaterThan);}
base.Visit(greaterThan);
}
/// <summary>
/// Rewrites the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual IExpression Rewrite(IGreaterThan greaterThan)
{
var mutableGreaterThan = greaterThan as GreaterThan;
if (mutableGreaterThan == null) return greaterThan;
this.RewriteChildren(mutableGreaterThan);
return mutableGreaterThan;
}
public virtual void onASTElement(IGreaterThan greaterThan) { }
/// <summary>
/// Performs some computation with the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual void Visit(IGreaterThan greaterThan)
{
}
/// <summary>
/// Visits the specified greater than.
/// </summary>
/// <param name="greaterThan">The greater than.</param>
public override void Visit(IGreaterThan greaterThan)
{
GreaterThan mutableGreaterThan = greaterThan as GreaterThan;
if (alwaysMakeACopy || mutableGreaterThan == null) mutableGreaterThan = new GreaterThan(greaterThan);
this.resultExpression = this.myCodeMutator.Visit(mutableGreaterThan);
}
/// <summary>
/// Traverses the children of the greater-than expression.
/// </summary>
public virtual void TraverseChildren(IGreaterThan greaterThan)
{
Contract.Requires(greaterThan != null);
this.TraverseChildren((IBinaryOperation)greaterThan);
}
public virtual void onASTElement(IGreaterThan greaterThan)
{
}
public void Visit(IGreaterThan greaterThan)
{
this.result = this.rewriter.Rewrite(greaterThan);
}
//^ ensures this.path.Count == old(this.path.Count);
/// <summary>
/// Traverses the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual void Visit(IGreaterThan greaterThan)
{
if (this.stopTraversal) return;
//^ int oldCount = this.path.Count;
this.path.Push(greaterThan);
this.Visit(greaterThan.LeftOperand);
this.Visit(greaterThan.RightOperand);
//^ assume this.path.Count == oldCount+1; //True because all of the virtual methods of this class promise not to decrease this.path.Count.
this.path.Pop();
}
public override void TraverseChildren(IGreaterThan greaterThan) {
base.TraverseChildren(greaterThan);
((GreaterThan)greaterThan).Type = this.platformType.SystemBoolean;
}
/// <summary>
/// Traverses the greater-than expression.
/// </summary>
public void Traverse(IGreaterThan greaterThan)
{
Contract.Requires(greaterThan != null);
if (this.preorderVisitor != null) this.preorderVisitor.Visit(greaterThan);
if (this.StopTraversal) return;
this.TraverseChildren(greaterThan);
if (this.StopTraversal) return;
if (this.postorderVisitor != null) this.postorderVisitor.Visit(greaterThan);
}
/// <summary>
/// Returns a deep copy of the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public GreaterThan Copy(IGreaterThan greaterThan) {
Contract.Requires(greaterThan != null);
Contract.Ensures(Contract.Result<GreaterThan>() != null);
var mutableCopy = this.shallowCopier.Copy(greaterThan);
this.CopyChildren((BinaryOperation)mutableCopy);
return mutableCopy;
}
public void Visit(IGreaterThan greaterThan)
{
this.traverser.Traverse(greaterThan);
}
/// <summary>
/// Returns a shallow copy of the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public GreaterThan Copy(IGreaterThan greaterThan) {
Contract.Requires(greaterThan != null);
Contract.Ensures(Contract.Result<GreaterThan>() != null);
return new GreaterThan(greaterThan);
}
public void Visit(IGreaterThan greaterThan)
{
Contract.Requires(greaterThan != null);
throw new NotImplementedException();
}
/// <summary>
/// Performs some computation with the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public virtual void Visit(IGreaterThan greaterThan)
{
}
public override void Visit(IGreaterThan greaterThan) {
base.Visit(greaterThan);
Bpl.Expr rexp = TranslatedExpressions.Pop();
Bpl.Expr lexp = TranslatedExpressions.Pop();
TranslatedExpressions.Push(Bpl.Expr.Binary(Bpl.BinaryOperator.Opcode.Gt, lexp, rexp));
}
/// <summary>
/// Visits the specified greater than.
/// </summary>
/// <param name="greaterThan">The greater than.</param>
public override void Visit(IGreaterThan greaterThan)
{
GreaterThan mutableGreaterThan = new GreaterThan(greaterThan);
this.resultExpression = this.myCodeCopier.DeepCopy(mutableGreaterThan);
}
public override void Visit(IGreaterThan operation)
{
ProcessOperation(operation);
}
/// <summary>
/// Returns a deep copy of the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public GreaterThan Copy(IGreaterThan greaterThan)
{
var mutableCopy = this.shallowCopier.Copy(greaterThan);
this.CopyChildren((BinaryOperation)mutableCopy);
return mutableCopy;
}
public override void Visit(IGreaterThan binary)
{
_formattedValue = Format(binary.LeftOperand) + " > " + Format(binary.RightOperand);
}
/// <summary>
/// Returns a shallow copy of the given greater-than expression.
/// </summary>
/// <param name="greaterThan"></param>
public GreaterThan Copy(IGreaterThan greaterThan)
{
return new GreaterThan(greaterThan);
}
public override void TraverseChildren(IGreaterThan greaterThan) {
if (greaterThan.IsUnsignedOrUnordered && !TypeHelper.IsPrimitiveInteger(greaterThan.LeftOperand.Type)) {
this.sourceEmitterOutput.Write("!(");
this.Traverse(greaterThan.LeftOperand);
this.sourceEmitterOutput.Write(" <= ");
this.Traverse(greaterThan.RightOperand);
this.sourceEmitterOutput.Write(")");
return;
}
var needsParen = LowerPrecedenceThanParentExpression(greaterThan);
var savedCurrentPrecedence = this.currentPrecedence;
this.currentPrecedence = this.Precedence(greaterThan);
if (needsParen) this.sourceEmitterOutput.Write("(");
if (greaterThan.IsUnsignedOrUnordered && TypeHelper.IsPrimitiveInteger(greaterThan.LeftOperand.Type) &&
greaterThan.LeftOperand.Type != TypeHelper.UnsignedEquivalent(greaterThan.LeftOperand.Type)) {
if (needsParen) this.sourceEmitterOutput.Write("(");
this.PrintTypeReferenceName(TypeHelper.UnsignedEquivalent(greaterThan.LeftOperand.Type));
if (needsParen) this.sourceEmitterOutput.Write(")");
}
this.Traverse(greaterThan.LeftOperand);
this.sourceEmitterOutput.Write(" > ");
if (greaterThan.IsUnsignedOrUnordered && TypeHelper.IsPrimitiveInteger(greaterThan.RightOperand.Type) &&
greaterThan.RightOperand.Type != TypeHelper.UnsignedEquivalent(greaterThan.RightOperand.Type)) {
if (needsParen) this.sourceEmitterOutput.Write("(");
this.PrintTypeReferenceName(TypeHelper.UnsignedEquivalent(greaterThan.RightOperand.Type));
if (needsParen) this.sourceEmitterOutput.Write(")");
}
this.Traverse(greaterThan.RightOperand);
if (needsParen) this.sourceEmitterOutput.Write(")");
this.currentPrecedence = savedCurrentPrecedence;
}
public void Visit(IGreaterThan greaterThan)
{
this.result = this.copier.Copy(greaterThan);
}
public override void TraverseChildren(IGreaterThan greaterThan)
{
MethodEnter(greaterThan);
base.TraverseChildren(greaterThan);
MethodExit();
}
/// <summary>
/// Visits the specified greater than.
/// </summary>
/// <param name="greaterThan">The greater than.</param>
public override void Visit(IGreaterThan greaterThan)
{
GreaterThan mutableGreaterThan = greaterThan as GreaterThan;
if (mutableGreaterThan == null) {
this.resultExpression = greaterThan;
return;
}
this.resultExpression = this.myCodeMutator.Visit(mutableGreaterThan);
}
