public RootScopePopulateScope ParseFile(FileToken file)
{
IOrType <EntryPointDefinitionPopulateScope, IError> defaultEntryPoint = OrType.Make <EntryPointDefinitionPopulateScope, IError>(
new EntryPointDefinitionPopulateScope(
new TypeReferancePopulateScope(new NameKey("empty")),
Array.Empty <IOrType <EntryPointDefinitionPopulateScope, IError> >(),
new TypeReferancePopulateScope(new NameKey("empty")),
"unused"));
var entryToReturn = defaultEntryPoint;
var assignments = new List <IOrType <WeakAssignOperationPopulateScope, IError> >();
var types = new List <IOrType <TypeDefinitionPopulateScope, IError> >();
var genericTypes = new List <IOrType <GenericTypeDefinitionPopulateScope, IError> >();
foreach (var element in file.Tokens.Select(line => ParseLine(line.CastTo <LineToken>().Tokens)))
{
element.Switch(setup =>
{
if (setup.SafeIs(out WeakAssignOperationPopulateScope assign))
{
assignments.Add(OrType.Make <WeakAssignOperationPopulateScope, IError>(assign));
}
else if (setup.SafeIs(out GenericTypeDefinitionPopulateScope genericType))
{
genericTypes.Add(OrType.Make <GenericTypeDefinitionPopulateScope, IError>(genericType));
}
else if (setup.SafeIs(out TypeDefinitionPopulateScope type))
{
types.Add(OrType.Make <TypeDefinitionPopulateScope, IError>(type));
}
else if (setup.SafeIs(out EntryPointDefinitionPopulateScope entry))
{
if (entryToReturn == defaultEntryPoint)
{
entryToReturn = OrType.Make <EntryPointDefinitionPopulateScope, IError>(entry);
}
else
{
entryToReturn = OrType.Make <EntryPointDefinitionPopulateScope, IError>(Error.Other("you can't have more than one entry point"));
}
}
else
{
assignments.Add(OrType.Make <WeakAssignOperationPopulateScope, IError>(Error.Other($"unexpected type {setup.GetType().Name}")));
}
}
, error =>
{
assignments.Add(OrType.Make <WeakAssignOperationPopulateScope, IError>(error));
});
}
return(new RootScopePopulateScope(assignments.ToArray(), entryToReturn, types, genericTypes));
}
public IPopulateScope <IFrontendCodeElement, ISetUpSideNode>[] ParseFile(FileToken file)
{
return(file.Tokens.Select(x => ParseLine(x.Cast <LineToken>().Tokens)).ToArray());
}