public override ParameterSignature GetReturnParameterSignature(ScriptParserGenerator generator)
{
switch (_literal.Type)
{
case GeneratorLexType.Terminal:
return(new ParameterSignature(generator.GetTerminalName(this.InnerWord), generator.Settings.InputClass));
case GeneratorLexType.Nonterminal:
return(new ParameterSignature(ScriptParserGenerator.ConvertCase(this.InnerWord, generator.Settings.NonterminalCaseConversion), generator.GetReturnClassIdentifier(this.InnerWord)));
default:
throw new NotSupportedException();
}
}
public void WriteParseCode(TextWriter writer, ScriptParserGenerator generator)
{
writer.Write(ScriptParserGenerator.GetAccessibilityString(generator.Settings.ParseMethodAccessibility));
writer.Write(" ");
writer.Write(generator.GetReturnClassIdentifier(this.DefinitionName));
writer.Write(" ");
writer.Write(generator.GetParseMethodIdentifier(this.DefinitionName));
writer.WriteLine("() {");
generator.IndentCount = 1;
generator.InitializeVariableIndex(1);
IDictionary <ElementsElement, MethodSignature> methods = this.GetReturnParameterSignaturesAndElements(generator);
if (false)
{
// 普通のコード
if (this.Expression.Selection.Candidates.Count >= 2)
{
IList <string> firsts = this.Expression.Selection.GetFirstTerminals(generator);
string peekVar;
writer.WriteLine(generator.GetCodeOfPeekOrThrow(this.DefinitionName, firsts, out peekVar));
Dictionary <string, string> usedFirsts = new Dictionary <string, string>();
foreach (ElementsElement elems in this.Expression.Selection.Candidates)
{
IList <string> innerFirsts = elems.GetFirstTerminals(generator);
foreach (string first in innerFirsts)
{
string usingPoint;
if (usedFirsts.TryGetValue(first, out usingPoint))
{
string context = string.Format("'{0}' の定義", this.DefinitionName);
string message = string.Format("<{1}> 内の <{0}> は <{2}> によって隠されます", first, elems.ToString(), usingPoint);
generator.Warn(context, message);
}
else
{
usedFirsts[first] = elems.ToString();
}
}
writer.WriteLine(generator.GetCodeOfIfLexisIn(peekVar, innerFirsts));
List <string> arguments = new List <string>();
foreach (ElementElement elem in elems.Elements)
{
string var = elem.WriteParseCode(writer, generator);
arguments.Add(var);
}
writer.WriteLine(generator.GetCodeOfReturnMethod(methods[elems].MethodName, arguments));
writer.Write(generator.GetCodeOfCloseBlock());
writer.Write(generator.GetCodeOfSingleElse());
}
writer.WriteLine(generator.GetCodeOfOpenBlock());
writer.WriteLine(generator.GetCodeOfThrowNew("System.NotImplementedException", ScriptParserGenerator.EscapeString(this.DefinitionName)));
writer.WriteLine(generator.GetCodeOfCloseBlock());
}
else
{
ElementsElement elems = this.Expression.Selection.Candidates.First();
IList <string> innerFirsts = elems.GetFirstTerminals(generator);
List <string> arguments = new List <string>();
foreach (ElementElement elem in elems.Elements)
{
string var = elem.WriteParseCode(writer, generator);
arguments.Add(var);
}
writer.WriteLine(generator.GetCodeOfReturnMethod(methods[elems].MethodName, arguments));
}
}
else
{
// 前半部分が同じSelectionをツリー状に探索するようにするために
// SelectionSubCandidateを作る
List <SelectionSubCandidate> subCandidates = new List <SelectionSubCandidate>();
foreach (ElementsElement candidate in this.Expression.Selection.Candidates)
{
subCandidates.Add(new SelectionSubCandidate(candidate));
}
SelectionSubCandidate.writeParseCodeAux(writer, generator, subCandidates, (candidateAtEmpty, writer2, generator2) => {
writer.WriteLine(generator.GetCodeOfReturnMethod(methods[candidateAtEmpty.OriginalElements].MethodName, candidateAtEmpty.TemporaryVariables));
});
}
writer.Write("}");
}