internal override void WriteCode(bool writeState, Action <string> WriteLine, Func <TERM, string> DescribeCond, Func <TERM, string> DescribeReg, Func <Sequence <TERM>, string> DescribeYields, string errorCase)
{
var caseCodes = new Dictionary <string, string>();
var caseCodesInv = new Dictionary <string, HashSet <string> >();
string defaultCode;
var caseVals = new List <string>();
StringBuilder defaultCodeSB = new StringBuilder();
defaultcase.WriteCode(writeState, x => { defaultCodeSB.AppendLine(x); return; }, DescribeCond, DescribeReg, DescribeYields, errorCase);
defaultCode = defaultCodeSB.ToString();
foreach (var c in cases)
{
string v = DescribeCond(c.Key);
if (caseCodes.ContainsKey(v))
{
throw new AutomataException(AutomataExceptionKind.InvalidSwitchCase);
}
caseVals.Add(v);
StringBuilder caseSB = new StringBuilder();
c.Value.WriteCode(writeState, x => { caseSB.AppendLine(x); return; }, DescribeCond, DescribeReg, DescribeYields, errorCase);
var caseStr = caseSB.ToString();
caseCodes.Add(v, caseStr);
if (!caseCodesInv.ContainsKey(caseStr))
{
caseCodesInv[caseStr] = new HashSet <string>();
}
caseCodesInv[caseStr].Add(v);
}
string inp = DescribeCond(input);
HashSet <string> covered = new HashSet <string>();
WriteLine("switch (" + inp + "){");
foreach (var v in caseVals)
{
if (covered.Contains(v))
{
continue;
}
string caseCode = caseCodes[v];
covered.Add(v);
covered.UnionWith(caseCodesInv[caseCode]);
foreach (var w in caseCodesInv[caseCode])
{
WriteLine("case (" + w + "):");
}
WriteLine("{" + caseCode + " break;}");
}
WriteLine("default:");
WriteLine("{" + defaultCode + " break;}");
WriteLine("}"); //end of switch
}
internal override void WriteCode(bool writeState, Action <string> WriteLine,
Func <TERM, string> DescribeCond, Func <TERM, string> DescribeReg,
Func <Sequence <TERM>, string> DescribeYields, string errorCase)
{
StringBuilder sb_t = new StringBuilder();
StringBuilder sb_f = new StringBuilder();
trueCase.WriteCode(writeState, (x => { sb_t.AppendLine(x); }), DescribeCond, DescribeReg, DescribeYields, errorCase);
falseCase.WriteCode(writeState, (x => { sb_f.AppendLine(x); }), DescribeCond, DescribeReg, DescribeYields, errorCase);
var t_str = sb_t.ToString();
var f_str = sb_f.ToString();
if (t_str.Equals(f_str))
{
WriteLine(t_str);
}
else
{
string condStr = DescribeCond(condition);
WriteLine("if (" + condStr + ") {");
WriteLine(t_str + "} else {");
WriteLine(f_str + "}");
}
}
