internal static ProgramState SetConstraintOnValueEquals(ValueEqualsSymbolicValue equals,
ProgramState programState)
{
if (equals.LeftOperand == equals.RightOperand)
{
return(equals.SetConstraint(BoolConstraint.True, programState));
}
return(programState);
}
private ProgramState HandleStaticEqualsCall()
{
SymbolicValue arg1;
SymbolicValue arg2;
var newProgramState = programState
.PopValue(out arg1)
.PopValue(out arg2)
.PopValue();
var equals = new ValueEqualsSymbolicValue(arg1, arg2);
newProgramState = newProgramState.PushValue(equals);
return(SetConstraintOnValueEquals(equals, newProgramState));
}
private ProgramState HandleInstanceEqualsCall()
{
SymbolicValue arg1;
SymbolicValue expression;
var newProgramState = programState
.PopValue(out arg1)
.PopValue(out expression);
var memberAccess = expression as MemberAccessSymbolicValue;
SymbolicValue arg2 = memberAccess != null
? memberAccess.MemberExpression
: SymbolicValue.This;
var equals = new ValueEqualsSymbolicValue(arg1, arg2);
newProgramState = newProgramState.PushValue(equals);
return(SetConstraintOnValueEquals(equals, newProgramState));
}