| public Insert ( Analyzer analyzer, string id, Exp node, DataType type, BindingKind kind ) : Binding | ||
| analyzer | Analyzer | |
| id | string | |
| node | Exp | |
| type | DataType | |
| kind | BindingKind | |
| return | Binding | |
public DataType VisitImport(ImportStatement i)
{
foreach (var a in i.names)
{
DataType mod = analyzer.LoadModule(a.orig.segs, scope);
if (mod == null)
{
analyzer.putProblem(i, "Cannot load module");
}
else if (a.alias != null)
{
scope.Insert(analyzer, a.alias.Name, a.alias, mod, BindingKind.VARIABLE);
}
}
return(DataType.Cont);
}
public DataType LoadModule(List<Name> name, State state)
{
if (name.Count == 0)
{
return null;
}
string qname = MakeQname(name);
DataType mt = getBuiltinModule(qname);
if (mt != null)
{
state.Insert(
this,
name[0].Name,
new Url(Builtins.LIBRARY_URL + mt.Table.Path + ".html"),
mt, BindingKind.SCOPE);
return mt;
}
// If there are more than one segment
// load the packages first
DataType prev = null;
string startPath = locateModule(name[0].Name);
if (startPath == null)
{
return null;
}
string path = startPath;
for (int i = 0; i < name.Count; i++)
{
path = FileSystem.CombinePath(path, name[i].Name);
string initFile = FileSystem.CombinePath(path, "__init__.py");
if (FileSystem.FileExists(initFile))
{
DataType mod = LoadFile(initFile);
if (mod == null)
{
return null;
}
if (prev != null)
{
prev.Table.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
else
{
state.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
prev = mod;
}
else if (i == name.Count - 1)
{
string startFile = path + suffix;
if (FileSystem.FileExists( startFile))
{
DataType mod = LoadFile(startFile);
if (mod == null)
{
return null;
}
if (prev != null)
{
prev.Table.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
else
{
state.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
prev = mod;
}
else
{
return null;
}
}
}
return prev;
}
public DataType LoadModule(List <Name> name, State state)
{
if (name.Count == 0)
{
return(null);
}
string qname = MakeQname(name);
DataType mt = GetBuiltinModule(qname);
if (mt != null)
{
state.Insert(
this,
name[0].Name,
new Url(Builtins.LIBRARY_URL + mt.Table.Path + ".html"),
mt, BindingKind.SCOPE);
return(mt);
}
// If there are more than one segment load the packages first
string startPath = LocateModule(name[0].Name);
if (startPath == null)
{
return(null);
}
DataType prev = null;
string path = startPath;
for (int i = 0; i < name.Count; i++)
{
path = FileSystem.CombinePath(path, name[i].Name);
string initFile = FileSystem.CombinePath(path, "__init__.py");
if (FileSystem.FileExists(initFile))
{
DataType mod = LoadFile(initFile);
if (mod == null)
{
return(null);
}
if (prev != null)
{
prev.Table.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
else
{
state.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
prev = mod;
}
else if (i == name.Count - 1)
{
string startFile = path + suffix;
if (FileSystem.FileExists(startFile))
{
DataType mod = LoadFile(startFile);
if (mod == null)
{
return(null);
}
if (prev != null)
{
prev.Table.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
else
{
state.Insert(this, name[i].Name, name[i], mod, BindingKind.VARIABLE);
}
prev = mod;
}
else
{
return(null);
}
}
}
return(prev);
}