public override bool TryParse(TokenStack tokens, out GraphNode node)
{
node = new Script();
while (tokens.Count > 0)
{
var versionDeclarationSyntax = new VersionDeclarationSyntax();
var bodySyntax = new BodySyntax();
if (versionDeclarationSyntax.TryParse(tokens, out GraphNode versionDeclaration))
{
node.AddChildNode(versionDeclaration);
}
else if (bodySyntax.TryParse(tokens, out GraphNode body))
{
node.AddChildNode(body);
}
else
{
// TODO: syntax error
node = null;
return(false);
}
}
return(true);
}
