public ILanguageType VerifyType_SymbolicExpression(MathematicaScalar sc, OperandsByName operands)
{
var s = new StringBuilder();
var varTypes = new Dictionary <string, MathematicaAtomicType>();
foreach (var pair in operands.OperandsDictionary)
{
//var lhs_type = this.GMacSymbolTable.Scalar
var rhsType = pair.Value.ExpressionType;
if (rhsType.IsBoolean())
{
varTypes.Add(pair.Key, MathematicaAtomicType.Boolean);
}
if (rhsType.IsInteger())
{
varTypes.Add(pair.Key, MathematicaAtomicType.Integer);
}
if (rhsType.IsScalar())
{
varTypes.Add(pair.Key, MathematicaAtomicType.Real);
}
else
{
s.Append("cannot assign RHS expression of type ");
s.Append(rhsType.TypeSignature);
s.Append(" to symbolic expression parameter ");
s.Append(pair.Key);
}
}
if (s.Length > 0)
{
return(Context.CreateTypeMismatch(s.ToString()));
}
var assumeExpr = Cas.CreateAssumeExpr(varTypes);
if (sc.IsBooleanScalar(assumeExpr))
{
return(GMacRootAst.BooleanType);
}
//if (sc.IsIntegerScalar(assumeExpr))
// return GMacRootAst.IntegerType;
if (sc.IsRealScalar(assumeExpr))
{
return(GMacRootAst.ScalarType);
}
return
(sc.IsComplexScalar(assumeExpr)
? GMacRootAst.ScalarType
: Context.CreateTypeMismatch("Symbolic expression type cannot be determined"));
}
private void translate_Dependency_List(string expressionText, out MathematicaScalar scalar, out OperandsByName operands)
{
var finalScalarText = new StringBuilder(expressionText);
operands = OperandsByName.Create();
var varIdx = 1;
var allMatches = GenUtils.ExtractDistinctInternalExpressions(expressionText);
foreach (var rgexMatch in allMatches)
{
var rhsExprText = rgexMatch.Value.Substring(1, rgexMatch.Value.Length - 2);
var rhsExpr =
BasicExpressionGenerator.Generate_PolyadicOperand(
GMacRootAst.ScalarType,
translate_LanguageExpression(rhsExprText)
);
var lhsVarName = "var" + (varIdx++).ToString("0000");
finalScalarText = finalScalarText.Replace(rgexMatch.Value, lhsVarName);
operands.AddOperand(lhsVarName, rhsExpr);
}
scalar = MathematicaScalar.Create(Cas, finalScalarText.ToString());
}
public IEnumerable <SymbolLValue> GetLValues(OperandsByName operands)
{
var lvalues = Enumerable.Empty <SymbolLValue>();
return
(operands
.OperandsDictionary
.Where(pair => pair.Value is LanguageValueAccess)
.Aggregate(
lvalues,
(current, pair) => current.Concat(((LanguageValueAccess)pair.Value).AccessLValues)
));
}
private ILanguageExpression CompileSymbolicExpressionCall(GMacParametricSymbolicExpression expr, OperandsByName operands)
{
var compiledOperands = OperandsByName.Create();
foreach (var pair in operands.OperandsDictionary)
{
var compiledRhsExpr =
(ILanguageExpressionAtomic)CompileExpression(pair.Value);
compiledOperands.AddOperand(pair.Key, compiledRhsExpr);
}
var compiledExpr = BasicPolyadic.Create(GMacRootAst.ScalarType, expr);
compiledExpr.Operands = compiledOperands;
return(compiledExpr);
}
public OperandsByName ReplaceLValueByExpression(OperandsByName oldOperands, SymbolLValue oldLvalue, ILanguageExpressionAtomic newExpr)
{
var newOperands = new Dictionary <string, ILanguageExpressionAtomic>();
foreach (var pair in oldOperands.OperandsDictionary)
{
var newOpExpr = ReplaceLValueByExpression(pair.Value, oldLvalue, newExpr);
newOperands.Add(pair.Key, newOpExpr);
}
oldOperands.OperandsDictionary.Clear();
foreach (var pair in newOperands)
{
oldOperands.AddOperand(pair.Key, pair.Value);
}
return(oldOperands);
}
private ValuePrimitive <MathematicaScalar> EvaluateBasicPolyadicSymbolicExpressionCall(GMacParametricSymbolicExpression symbolicExpr, OperandsByName operands)
{
var exprText = symbolicExpr.AssociatedMathematicaScalar.ExpressionText;
foreach (var pair in operands.OperandsDictionary)
{
var rhsValue = pair.Value.AcceptVisitor(this);
exprText = exprText.Replace(pair.Key, ((ValuePrimitive <MathematicaScalar>)rhsValue).Value.ExpressionText);
}
var scalar =
MathematicaScalar.Create(symbolicExpr.AssociatedMathematicaScalar.CasInterface, exprText);
//May be required
//scalar = MathematicaScalar.Create(scalar.CAS, scalar.CASEvaluator.FullySimplify(scalar.MathExpr));
return
(ValuePrimitive <MathematicaScalar> .Create(
GMacRootAst.ScalarType,
scalar
));
}
public ILanguageExpression Generate_SymbolicExpression(MathematicaScalar casExpr, OperandsByName operands)
{
var exprType = ScalarType;
//var expr_type = this.VerifyType_SymbolicExpression(cas_expr, operands) as TypePrimitive;
if (operands.OperandsDictionary.Count == 0)
{
return(ValuePrimitive <MathematicaScalar> .Create(exprType, casExpr));
}
var basicExpr = BasicPolyadic.Create(exprType, GMacParametricSymbolicExpression.Create(casExpr));
basicExpr.Operands = operands;
return(basicExpr);
}
internal void Generate_BasicPolyadic_CASExpression(GMacParametricSymbolicExpression casExpr, OperandsByName operands)
{
Log.Append("(");
var flag = false;
foreach (var pair in operands.OperandsDictionary)
{
if (flag)
{
Log.Append(", ");
}
else
{
flag = true;
}
Log.Append(pair.Key);
Log.Append(" = ");
pair.Value.AcceptVisitor(this);
}
Log.Append(")");
}