//Generate Z3 term for fun def
private static bool GenerateFunction(FunctionDef def, FastTransducerInstance fti)
{
fti.functions.Add(new Function(def, fti, z3p));
return true;
}
public Function(FunctionDef def, FastTransducerInstance fti, Z3Provider z3p)
{
this.z3p = z3p;
this.arity = def.inputVariables.Count;
this.name = def.id.text;
this.outputSort = getSort(def.outputSort, fti);
this.inputSorts = new Dictionary<string, Sort>();
this.variableExprs = new Dictionary<string, Expr>(); //contains the terms for the variables of the function
#region Compute input and outputs sort
Sort[] inputs = new Sort[this.arity];
uint i = 0;
foreach (var va in def.inputVariables)
{
inputs[i] = getSort(va.Value, fti);
inputSorts.Add(va.Key.text, inputs[i]);
variableExprs.Add(va.Key.text, z3p.MkVar(i, inputs[i]));
i++;
}
Expr[] varExprs = variableExprs.Values.ToArray();
#endregion
this.funcDecl = z3p.MkFreshFuncDecl(this.name, inputs, this.outputSort);
var e = GenerateZ3ExprFromExpr(def.expr, fti);
this.functionDef = e.Simplify(); //z3p.MkEqForall(z3p.MkApp(funcDecl, varExprs), GenerateZ3ExprFromExpr(def.expr, fti), varExprs);
}
//Generate the C# corresponding to one function
private static bool GenerateFun(FunctionDef def, StringBuilder sb)
{
sb.Append("public " + ((def.outputSort.kind == FastSortKind.Real) ? "double" : def.outputSort.name.text) + " " + def.id.text+"(");
bool needComma=false;
foreach (var e in def.inputVariables)
{
if (needComma)
sb.Append(",");
else
needComma = true;
sb.Append(((e.Value.name.text == "real") ? "double" : e.Value.name.text) + " " + e.Key.text);
}
sb.AppendLine("){");
sb.Append("return ");
PrintExpr(new List<FastToken>(), def.expr, sb);
sb.AppendLine(";");
sb.Append("}");
sb.AppendLine();
return true;
}
