/// <inheritdoc />
public OValue InterpretAsRef(bool is32Bit)
{
if (!is32Bit)
{
throw new InvalidOperationException();
}
return(new OValue(null, IsZero.ToBooleanOrFalse(), true));
}
public void TestConstructorWithEnum(int nbrParam)
{
ISpecification <int>[] spectab = new ISpecification <int> [nbrParam];
for (int i = 0; i < spectab.Length; i++)
{
spectab[i] = new IsZero();
}
SpecificationAnd <int> spec = new SpecificationAnd <int>(spectab);
}
/// <inheritdoc />
public NativeIntegerValue InterpretAsU(bool is32Bit)
{
var value = new NativeIntegerValue(0, is32Bit);
if (!IsZero.ToBooleanOrFalse())
{
value.MarkFullyUnknown();
}
return(value);
}
public void EvalIsZeroZero()
{
// Arrange
var s = new IsZero(new Zero());
// Act
var term = Eval(s);
// Assert
Assert.IsType <True>(term);
}
public void IsZeroFalse()
{
// Arrange
var s = new IsZero(new Succ(new Zero()));
// Act
var term = Eval(s);
// Assert
Assert.IsType <False>(term);
}
public override int GetHashCode()
{
var hashCode = -1437411818;
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Description);
hashCode = hashCode * -1521134295 + EqualityComparer <DateTime?> .Default.GetHashCode(Stamp);
hashCode = hashCode * -1521134295 + EqualityComparer <IAccounting> .Default.GetHashCode(Accounting);
hashCode = hashCode * -1521134295 + EqualityComparer <CurrencyUnit> .Default.GetHashCode(CurrencyUnit);
hashCode = hashCode * -1521134295 + ExclVAT.GetHashCode();
hashCode = hashCode * -1521134295 + VATrate.GetHashCode();
hashCode = hashCode * -1521134295 + IsZero.GetHashCode();
return(hashCode);
}
public void CanTellIfZero()
{
byte numberByte = 0;
short numberShort = 0;
int numerInt = 0;
long numberLong = 0L;
float numberFloat = 0.0F;
double numberDouble = 0.0D;
decimal numberDecimal = 0;
Assert.True(IsZero.Check(numberByte));
Assert.True(IsZero.Check(numberShort));
Assert.True(IsZero.Check(numerInt));
Assert.True(IsZero.Check(numberLong));
Assert.True(IsZero.Check(numberFloat));
Assert.True(IsZero.Check(numberDouble));
Assert.True(IsZero.Check(numberDecimal));
}
public void CanTellIfNotZero()
{
byte numberByte = 123;
short numberShort = 123;
int numerInt = 123;
long numberLong = 123;
float numberFloat = 2113.001001010101F;
double numberDouble = 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decimal numberDecimal = 1;
Assert.False(IsZero.Check(numberByte));
Assert.False(IsZero.Check(numberShort));
Assert.False(IsZero.Check(numerInt));
Assert.False(IsZero.Check(numberLong));
Assert.False(IsZero.Check(numberFloat));
Assert.False(IsZero.Check(numberDouble));
Assert.False(IsZero.Check(numberDecimal));
}
private static ITerm Eval1(Context ctx, ITerm t)
{
return t switch
{
If ift when ift.Condition is True => ift.Then,
If ift when ift.Condition is False => ift.Else,
If ift => new If(ift.Info, Eval1(ctx, ift.Condition), ift.Then, ift.Else),
Tag tag => new Tag(tag.Info, tag.Label, Eval1(ctx, tag.Term), tag.Type),
Case c when c.Term is Tag tag && IsVal(ctx, tag.Term) => CaseTag(c.Cases, tag.Label, tag.Term),
Case c => new Case(c.Info, Eval1(ctx, c.Term), c.Cases),
App app when app.Left is Abs abs && IsVal(ctx, app.Right) => TermSubsTop(app.Right, abs.Body),
App app when IsVal(ctx, app.Left) => new App(app.Info, app.Left, Eval1(ctx, app.Right)),
App app => new App(app.Info, Eval1(ctx, app.Left), app.Right),
Let let when IsVal(ctx, let.LetTerm) => TermSubsTop(let.LetTerm, let.InTerm),
Let let => new Let(let.Info, let.Variable, Eval1(ctx, let.LetTerm), let.InTerm),
Fix fix when IsVal(ctx, fix.Term) => FixVal(fix.Term, t),
Fix fix => new Fix(fix.Info, Eval1(ctx, fix.Term)),
Var var => Var(ctx, var),
Ascribe ascribe when IsVal(ctx, ascribe.Term) => ascribe.Term,
Ascribe ascribe => new Ascribe(ascribe.Info, Eval1(ctx, ascribe.Term), ascribe.Type),
Record rec => Record(ctx, rec),
Proj proj when proj.Term is Record rec && IsVal(ctx, rec) => ProjRec(rec.Fields, proj.Label),
Proj proj => new Proj(proj.Info, Eval1(ctx, proj.Term), proj.Label),
TimesFloat tf when tf.Left is Float fl && tf.Right is Float fr => new Float(tf.Info, fl.Value * fr.Value),
TimesFloat tf when tf.Left is Float => new TimesFloat(tf.Info, tf.Left, Eval1(ctx, tf.Right)),
TimesFloat tf => new TimesFloat(tf.Info, Eval1(ctx, tf.Left), tf.Right),
Succ succ => new Succ(succ.Info, Eval1(ctx, succ.Of)),
Pred p when p.Of is Zero => new Zero(new UnknownInfo()),
Pred p when p.Of is Succ s && IsNumericVal(ctx, s.Of) => s.Of,
Pred s => new Pred(s.Info, Eval1(ctx, s.Of)),
IsZero isZero when isZero.Term is Zero => new True(new UnknownInfo()),
IsZero isZero when isZero.Term is Succ s && IsNumericVal(ctx, s.Of) => new False(new UnknownInfo()),
IsZero isZero => new IsZero(isZero.Info, Eval1(ctx, isZero.Term)),
_ => throw new NoRulesAppliesException()
};
}
/// <inheritdoc /> public OValue InterpretAsRef(bool is32Bit) => new OValue(null, IsZero.ToBooleanOrFalse(), true);
/// <inheritdoc /> public I4Value InterpretAsU4() => new I4Value(0, IsZero.ToBooleanOrFalse() ? 0xFFFFFFFF : 0x00000000);
public static bool Check(double number)
{
return(!IsNegative.Check(number) && !IsZero.Check(number));
}
