private bool TryCompileCodePointToken(MessageScriptParser.TokenContext context, out CodePointToken codePointToken)
{
LogContextInfo(context);
codePointToken = new CodePointToken();
if (!TryGetFatal(context, context.IntLiteral, "Expected code point surrogate pair", out var argumentNodes))
{
return(false);
}
if (!TryParseByteIntLiteral(context, "Expected code point high surrogate", () => argumentNodes[0], out var highSurrogate))
{
return(false);
}
if (!TryParseByteIntLiteral(context, "Expected code point low surrogate", () => argumentNodes[1], out var lowSurrogate))
{
return(false);
}
codePointToken = new CodePointToken(highSurrogate, lowSurrogate);
return(true);
}
private bool TryCompileAliasedFunction(MessageScriptParser.TokenContext context, string tagId, out FunctionToken functionToken)
{
LogContextInfo(context);
functionToken = new FunctionToken();
var functionWasFound = false;
foreach (var library in Library.MessageScriptLibraries)
{
var function = library.Functions.SingleOrDefault(x => x.Name == tagId);
if (function == null)
{
continue;
}
var arguments = new List <short>();
for (var i = 0; i < function.Parameters.Count; i++)
{
if (!TryParseShortIntLiteral(context, "Expected function argument", () => context.IntLiteral(i), out var argument))
{
return(false);
}
arguments.Add(argument);
}
functionToken = new FunctionToken(library.Index, function.Index, arguments);
functionWasFound = true;
break;
}
return(functionWasFound);
}
private bool TryCompileFunctionToken(MessageScriptParser.TokenContext context, out FunctionToken functionToken)
{
LogContextInfo(context);
functionToken = new FunctionToken();
if (!TryGetFatal(context, context.IntLiteral, "Expected arguments", out var argumentNodes))
{
return(false);
}
if (!TryParseShortIntLiteral(context, "Expected function table index", () => argumentNodes[0], out var functionTableIndex))
{
return(false);
}
if (!TryParseShortIntLiteral(context, "Expected function index", () => argumentNodes[1], out var functionIndex))
{
return(false);
}
if (argumentNodes.Length > 2)
{
var arguments = new List <short>(argumentNodes.Length - 2);
for (int i = 2; i < argumentNodes.Length; i++)
{
if (!TryParseShortIntLiteral(context, "Expected function argument", () => argumentNodes[i], out var argument))
{
return(false);
}
arguments.Add(argument);
}
functionToken = new FunctionToken(functionTableIndex, functionIndex, arguments);
}
else
{
functionToken = new FunctionToken(functionTableIndex, functionIndex);
}
return(true);
}
