public IMember GetValueFromSet(SetExpression expression)
{
var contents = new List <IMember>();
foreach (var item in expression.Items)
{
var value = GetValueFromExpression(item) ?? UnknownType;
contents.Add(value);
}
return(PythonCollectionType.CreateSet(Interpreter, GetLoc(expression), contents));
}
public IMember GetValueFromSet(SetExpression expression)
{
var contents = new List <IMember>();
foreach (var item in expression.Items.Take(MaxCollectionSize))
{
var value = GetValueFromExpression(item) ?? UnknownType;
contents.Add(value);
}
return(PythonCollectionType.CreateSet(Module, contents, exact: expression.Items.Count <= MaxCollectionSize));
}
public async Task <IMember> GetValueFromSetAsync(SetExpression expression, CancellationToken cancellationToken = default)
{
var contents = new List <IMember>();
foreach (var item in expression.Items)
{
var value = await GetValueFromExpressionAsync(item, cancellationToken) ?? UnknownType;
contents.Add(value);
}
return(PythonCollectionType.CreateSet(Interpreter, GetLoc(expression), contents));
}
public IMember GetValueFromComprehension(Comprehension node)
{
var oldVariables = CurrentScope.Variables.OfType <Variable>().ToDictionary(k => k.Name, v => v);
try {
ProcessComprehension(node);
// TODO: Evaluate comprehensions to produce exact contents, if possible.
switch (node)
{
case ListComprehension lc:
var v1 = GetValueFromExpression(lc.Item) ?? UnknownType;
return(PythonCollectionType.CreateList(Module, new[] { v1 }));
case SetComprehension sc:
var v2 = GetValueFromExpression(sc.Item) ?? UnknownType;
return(PythonCollectionType.CreateSet(Module, new[] { v2 }));
case DictionaryComprehension dc:
var k = GetValueFromExpression(dc.Key) ?? UnknownType;
var v = GetValueFromExpression(dc.Value) ?? UnknownType;
return(new PythonDictionary(new PythonDictionaryType(Interpreter.ModuleResolution.BuiltinsModule), new Dictionary <IMember, IMember> {
{ k, v }
}));
}
return(UnknownType);
} finally {
// Remove temporary variables since this is assignment and the right hand
// side comprehension does not leak internal variables into the scope.
var newVariables = CurrentScope.Variables.ToDictionary(k => k.Name, v => v);
var variables = (VariableCollection)CurrentScope.Variables;
foreach (var kvp in newVariables)
{
if (!oldVariables.ContainsKey(kvp.Key))
{
variables.RemoveVariable(kvp.Key);
}
}
}
}