public static Executable[] ResolveBlock(IList<Executable> code)
{
List<Executable> output = new List<Executable>();
for (int i = 0; i < code.Count; ++i)
{
Executable line = code[i];
if (line is IfRawComponent && ((IfRawComponent)line).Type == IfRawComponent.ComponentType.IF)
{
IfRawComponent rawIf = (IfRawComponent)line;
IfStatement head = null;
IfStatement tail = null;
if (rawIf.Type != IfRawComponent.ComponentType.IF)
{
throw new ParserException(rawIf.FirstToken, "Unexpected token.");
}
head = new IfStatement(rawIf.FirstToken, rawIf.NullableExpression, rawIf.Body);
tail = head;
bool keepGoing = true;
while (keepGoing)
{
if (i + 1 < code.Count && code[i + 1] is IfRawComponent)
{
++i;
IfRawComponent consecutiveIfComponent = (IfRawComponent)code[i];
if (consecutiveIfComponent.Type == IfRawComponent.ComponentType.ELIF)
{
IfStatement elifPiece = new IfStatement(consecutiveIfComponent.FirstToken, consecutiveIfComponent.NullableExpression, consecutiveIfComponent.Body);
tail.SetFalseCode(Listify(elifPiece));
tail = elifPiece;
}
else if (consecutiveIfComponent.Type == IfRawComponent.ComponentType.ELSE)
{
tail.SetFalseCode(consecutiveIfComponent.Body);
keepGoing = false;
break;
}
else
{
--i;
break;
}
}
else
{
break;
}
}
line = head;
}
output.AddRange(line.Resolve());
}
return output.ToArray();
}
private void SerializeIfStatement(List<string> output, IfStatement ifStatement, string indention, bool useFirstIndention)
{
if (useFirstIndention)
{
output.Add(indention);
}
output.Add("if (");
SerializeExpression(output, ifStatement.Condition);
output.Add(") {\n");
SerializeExecList(output, ifStatement.TrueCode, indention + "\t");
output.Add(indention);
output.Add("}");
if (ifStatement.FalseCode.Length == 0)
{
output.Add("\n");
}
else
{
output.Add(" else ");
if (ifStatement.FalseCode.Length == 1 && ifStatement.FalseCode[0] is IfStatement)
{
SerializeIfStatement(output, (IfStatement)ifStatement.FalseCode[0], indention, false);
}
else
{
output.Add("{\n");
SerializeExecList(output, ifStatement.FalseCode, indention + "\t");
output.Add(indention);
output.Add("}\n");
}
}
}
private void SerializeIfStatement(List<string> output, IfStatement ifStatement, string indention, bool skipIndention)
{
if (!skipIndention) {
output.Add(indention);
}
output.Add("if ");
SerializeExpression(output, ifStatement.Condition);
output.Add(":\n");
SerializeBlock(output, ifStatement.TrueCode, indention + "\t");
if (ifStatement.FalseCode.Length > 0)
{
if (ifStatement.FalseCode.Length == 1 && ifStatement.FalseCode[0] is IfStatement)
{
output.Add(indention);
output.Add("el");
SerializeIfStatement(output, (IfStatement)ifStatement.FalseCode[0], indention, true);
}
else
{
output.Add(indention);
output.Add("else:\n");
SerializeBlock(output, ifStatement.FalseCode, indention + "\t");
}
}
}