/// <summary>
/// Returns the set of <see cref="OptionPosition"/> with the specified <paramref name="strike"/>
/// </summary>
public IEnumerable <OptionPosition> ForStrike(decimal strike)
{
ImmutableHashSet <Symbol> symbols;
return(_strikes.TryGetValue(strike, out symbols)
? ForSymbols(symbols)
: Enumerable.Empty <OptionPosition>());
}
/// <summary>
/// Returns the set of <see cref="OptionPosition"/> with the specified <paramref name="expiration"/>
/// </summary>
public IEnumerable <OptionPosition> ForExpiration(DateTime expiration)
{
ImmutableHashSet <Symbol> symbols;
return(_expirations.TryGetValue(expiration, out symbols)
? ForSymbols(symbols)
: Enumerable.Empty <OptionPosition>());
}
public IPackageInfo GetOrFetch(string packageId)
{
if (packages.TryGetValue(packageId, out IPackageInfo package))
{
return(package);
}
return(Fetch(packageId));
}
public IConfig Get(string configPath)
{
string key = configPath.GetFullConsolidatedPath();
configs.TryGetValue(key, out IConfig config);
return(config);
}
public DataModelType GetTypeByG4Name(string g4Name)
{
DataModelType answer;
_g4Lookup.TryGetValue(g4Name, out answer);
return(answer);
}
public static ImmutableSortedDictionary <int, int> .Builder Increase(this ImmutableSortedDictionary <int, int> .Builder b, int f)
{
if (!b.TryGetValue(f, out var newCount))
{
newCount = 0;
}
b[f] = ++newCount;
return(b);
}
public static TypeSymbol?TryGetDeclarationType(string?typeName)
{
if (typeName != null && DeclarationTypes.TryGetValue(typeName, out TypeSymbol primitiveType))
{
return(primitiveType);
}
return(null);
}
private ImmutableArray <TExtension> GetLanguageSpecificAnalyzers(Assembly analyzerAssembly, ImmutableSortedDictionary <string, ImmutableSortedSet <string> > analyzerTypeNameMap, string language, ref bool reportedError)
{
ImmutableSortedSet <string>?languageSpecificAnalyzerTypeNames;
if (!analyzerTypeNameMap.TryGetValue(language, out languageSpecificAnalyzerTypeNames))
{
return(ImmutableArray <TExtension> .Empty);
}
return(this.GetAnalyzersForTypeNames(analyzerAssembly, languageSpecificAnalyzerTypeNames, ref reportedError));
}
public bool ImmutableSortedDictionary()
{
bool result = default;
ImmutableSortedDictionary <TKey, TValue> collection = _immutableSortedDictionary;
TKey[] notFound = _notFound;
for (int i = 0; i < notFound.Length; i++)
{
result ^= collection.TryGetValue(notFound[i], out _);
}
return(result);
}
private static ImmutableSortedDictionary <DateTime, State> AddOrUpdateStatesDictAndCleanOld(
ImmutableSortedDictionary <DateTime, State> states, State newState,
DateTime now)
{
var minEventTime = now - TimeSpan.FromMinutes(1);
var old = states.Keys.SkipWhile(e => e < minEventTime);
states = states.RemoveRange(old);
if (states.TryGetValue(now, out var oldState))
{
newState = new State(oldState, newState);
}
return(states.SetItem(now, newState));
}
/// <summary>
/// Filters the provided <paramref name="values"/> according to this <see cref="BinaryComparison"/>
/// and the specified <paramref name="reference"/> value. The <paramref name="reference"/> value is
/// used as the RIGHT side of the binary comparison. Consider the binary comparison is LessThan and
/// we call Filter(values, 42). We're looking for keys that are less than 42.
/// </summary>
public static Tuple <ImmutableSortedDictionary <TKey, TValue>, ImmutableSortedDictionary <TKey, TValue> > SplitBy <TKey, TValue>(
this BinaryComparison comparison,
ImmutableSortedDictionary <TKey, TValue> values,
TKey reference
)
{
var matches = ImmutableSortedDictionary <TKey, TValue> .Empty;
var removed = ImmutableSortedDictionary <TKey, TValue> .Empty;
if (comparison.Type == ExpressionType.NotEqual)
{
var match = values.Remove(reference);
removed = BinaryComparison.Equal.Filter(values, reference);
return(Tuple.Create(match, removed));
}
if (comparison.Type == ExpressionType.Equal)
{
TValue value;
if (values.TryGetValue(reference, out value))
{
matches = matches.Add(reference, value);
removed = BinaryComparison.NotEqual.Filter(values, reference);
return(Tuple.Create(matches, removed));
}
// no matches
return(Tuple.Create(ImmutableSortedDictionary <TKey, TValue> .Empty, values));
}
var evaluator = comparison.GetEvaluator <TKey>();
foreach (var kvp in values)
{
if (evaluator(kvp.Key, reference))
{
matches = matches.Add(kvp.Key, kvp.Value);
}
else
{
removed = removed.Add(kvp.Key, kvp.Value);
}
}
return(Tuple.Create(matches, removed));
}
/// <summary>
/// Filters the provided <paramref name="values"/> according to this <see cref="BinaryComparison"/>
/// and the specified <paramref name="reference"/> value. The <paramref name="reference"/> value is
/// used as the RIGHT side of the binary comparison. Consider the binary comparison is LessThan and
/// we call Filter(values, 42). We're looking for keys that are less than 42.
/// </summary>
public static ImmutableSortedDictionary <TKey, TValue> Filter <TKey, TValue>(
this BinaryComparison comparison,
ImmutableSortedDictionary <TKey, TValue> values,
TKey reference
)
{
if (comparison.Type == ExpressionType.NotEqual)
{
return(values.Remove(reference));
}
var result = ImmutableSortedDictionary <TKey, TValue> .Empty;
if (comparison.Type == ExpressionType.Equal)
{
TValue value;
if (values.TryGetValue(reference, out value))
{
result = result.Add(reference, value);
}
return(result);
}
// since we're enumerating a sorted collection, once we receive
// a mismatch it means we'll never again receive a match
var breakAfterFailure =
comparison == BinaryComparison.LessThanOrEqual ||
comparison == BinaryComparison.LessThanOrEqual;
var evaluator = comparison.GetEvaluator <TKey>();
foreach (var kvp in values)
{
if (evaluator(kvp.Key, reference))
{
result = result.Add(kvp.Key, kvp.Value);
}
else if (breakAfterFailure)
{
break;
}
}
return(result);
}
public static ImmutableSortedDictionary <string, HoistAction> RemoveCycles(ImmutableSortedDictionary <string, HoistAction> edges)
{
ImmutableSortedDictionary <string, HoistAction> .Builder builder = edges.ToBuilder();
foreach (KeyValuePair <string, HoistAction> currentEdge in edges)
{
string targetKey = FindCycle(builder, currentEdge);
if (targetKey != null)
{
HoistAction nextKey;
while (builder.TryGetValue(targetKey, out nextKey))
{
builder.Remove(targetKey);
targetKey = nextKey.Becomes;
}
}
}
return(builder.ToImmutable());
}
public static ImmutableSortedDictionary <string, HoistAction> ApplyTransitiveProperty(ImmutableSortedDictionary <string, HoistAction> edges)
{
ImmutableSortedDictionary <string, HoistAction> .Builder builder = edges.ToBuilder();
var keys = new List <KeyValuePair <string, HoistAction> >();
foreach (string startingKey in edges.Keys)
{
keys.Clear();
string currentKey = startingKey;
HoistAction currentValue;
while (builder.TryGetValue(currentKey, out currentValue))
{
keys.Add(Pair.Make(currentKey, currentValue));
currentKey = currentValue.Becomes;
}
Debug.Assert(keys.Count > 0);
if (keys.Count <= 1)
{
// No transitive behavior to apply
continue;
}
string becomes = keys[keys.Count - 1].Value.Becomes;
int addedRanks = keys[keys.Count - 1].Value.AddedRanks;
for (int idx = keys.Count - 2; idx >= 0; --idx)
{
KeyValuePair <string, HoistAction> key = keys[idx];
addedRanks += key.Value.AddedRanks;
builder[key.Key] = new HoistAction(becomes, addedRanks);
}
}
return(builder.ToImmutable());
}
internal bool TryGetDocument(DocumentReference docRef, out DocumentSnapshot document) => _keyIndex.TryGetValue(docRef, out document);
/// <summary>
/// Converts string literal text into its value. Returns null if the specified string token is malformed due to lexer error recovery.
/// </summary>
/// <param name="stringToken">the string token</param>
public static string?TryGetStringValue(Token stringToken)
{
var(start, end) = stringToken.Type switch
{
TokenType.StringComplete => (LanguageConstants.StringDelimiter, LanguageConstants.StringDelimiter),
TokenType.StringLeftPiece => (LanguageConstants.StringDelimiter, LanguageConstants.StringHoleOpen),
TokenType.StringMiddlePiece => (LanguageConstants.StringHoleClose, LanguageConstants.StringHoleOpen),
TokenType.StringRightPiece => (LanguageConstants.StringHoleClose, LanguageConstants.StringDelimiter),
_ => (null, null),
};
if (start == null || end == null)
{
return(null);
}
if (stringToken.Text.Length < start.Length + end.Length ||
stringToken.Text.Substring(0, start.Length) != start ||
stringToken.Text.Substring(stringToken.Text.Length - end.Length) != end)
{
// any lexer-generated token should not hit this problem as the start & end are already verified
return(null);
}
var contents = stringToken.Text.Substring(start.Length, stringToken.Text.Length - start.Length - end.Length);
var window = new SlidingTextWindow(contents);
// the value of the string will be shorter because escapes are longer than the characters they represent
var buffer = new StringBuilder(contents.Length);
while (!window.IsAtEnd())
{
var nextChar = window.Next();
if (nextChar == '\'')
{
return(null);
}
if (nextChar == '\\')
{
// escape sequence begins
if (window.IsAtEnd())
{
return(null);
}
char escapeChar = window.Next();
if (escapeChar == 'u')
{
// unicode escape
char openCurly = window.Next();
if (openCurly != '{')
{
return(null);
}
var codePointText = ScanHexNumber(window);
if (!TryParseCodePoint(codePointText, out uint codePoint))
{
// invalid codepoint
return(null);
}
char closeCurly = window.Next();
if (closeCurly != '}')
{
return(null);
}
char charOrHighSurrogate = CodepointToString(codePoint, out char lowSurrogate);
buffer.Append(charOrHighSurrogate);
if (lowSurrogate != SlidingTextWindow.InvalidCharacter)
{
// previous char was a high surrogate
// also append the low surrogate
buffer.Append(lowSurrogate);
}
continue;
}
if (SingleCharacterEscapes.TryGetValue(escapeChar, out char escapeCharValue) == false)
{
// invalid escape character
return(null);
}
buffer.Append(escapeCharValue);
// continue to next iteration
continue;
}
// regular string char - append to buffer
buffer.Append(nextChar);
}
return(buffer.ToString());
}
public static IReadOnlyList <MorseSymbol> ToMorse(char c) => _alphabet.TryGetValue(char.ToUpper(c), out MorseSymbol[]? code) ? code : _alphabet[' '];
/// <summary>
/// Converts string literal text into its value. Returns null if the specified string token is malformed due to lexer error recovery.
/// </summary>
/// <param name="stringToken">the string token</param>
public static string?TryGetStringValue(Token stringToken)
{
var(start, end) = stringToken.Type switch {
TokenType.StringComplete => (LanguageConstants.StringDelimiter, LanguageConstants.StringDelimiter),
TokenType.StringLeftPiece => (LanguageConstants.StringDelimiter, LanguageConstants.StringHoleOpen),
TokenType.StringMiddlePiece => (LanguageConstants.StringHoleClose, LanguageConstants.StringHoleOpen),
TokenType.StringRightPiece => (LanguageConstants.StringHoleClose, LanguageConstants.StringDelimiter),
_ => (null, null),
};
if (start == null || end == null)
{
return(null);
}
if (stringToken.Text.Length < start.Length + end.Length ||
stringToken.Text.Substring(0, start.Length) != start ||
stringToken.Text.Substring(stringToken.Text.Length - end.Length) != end)
{
// any lexer-generated token should not hit this problem as the start & end are already verified
return(null);
}
var contents = stringToken.Text.Substring(start.Length, stringToken.Text.Length - start.Length - end.Length);
var window = new SlidingTextWindow(contents);
// the value of the string will be shorter because escapes are longer than the characters they represent
var buffer = new StringBuilder(contents.Length);
while (!window.IsAtEnd())
{
var nextChar = window.Next();
if (nextChar == '\'')
{
return(null);
}
if (nextChar == '\\')
{
// escape sequence begins
if (window.IsAtEnd())
{
return(null);
}
char escapeChar = window.Next();
if (CharacterEscapes.TryGetValue(escapeChar, out char escapeCharValue) == false)
{
// invalid escape character
return(null);
}
buffer.Append(escapeCharValue);
// continue to next iteration
continue;
}
// regular string char - append to buffer
buffer.Append(nextChar);
}
return(buffer.ToString());
}
public bool TryGetValue(string path, out TreeEntry entry) => _items.TryGetValue(path, out entry);
public static DataModel HoistTypes(DataModel source)
{
ImmutableSortedDictionary <string, HoistAction> hoistMap = GetViableHoistEdgeList(source);
if (hoistMap.Count == 0)
{
return(source);
}
hoistMap = RemoveCycles(hoistMap);
hoistMap = ApplyTransitiveProperty(hoistMap);
var newTypes = new List <DataModelType>();
foreach (DataModelType sourceType in source.Types)
{
if (hoistMap.ContainsKey(sourceType.G4DeclaredName))
{
// This type is being eliminated
continue;
}
bool anythingDifferent = false;
ImmutableArray <DataModelMember> .Builder newMembers = ImmutableArray.CreateBuilder <DataModelMember>();
foreach (DataModelMember sourceMember in sourceType.Members)
{
HoistAction todo;
if (hoistMap.TryGetValue(sourceMember.DeclaredName, out todo))
{
anythingDifferent = true;
newMembers.Add(new DataModelMember(
todo.Becomes,
sourceMember.CSharpName,
sourceMember.SerializedName,
sourceMember.SummaryText,
sourceMember.ArgumentName,
sourceMember.Pattern,
sourceMember.Minimum,
sourceMember.MinItems,
sourceMember.UniqueItems,
sourceMember.Default,
sourceMember.Rank + todo.AddedRanks,
sourceMember.Required
));
}
else
{
newMembers.Add(sourceMember);
}
}
if (anythingDifferent)
{
newTypes.Add(new DataModelType(
sourceType.RootObject,
sourceType.SummaryText,
sourceType.RemarksText,
sourceType.G4DeclaredName,
sourceType.CSharpName,
sourceType.InterfaceName,
newMembers.ToImmutable(),
ImmutableArray <string> .Empty,
ImmutableArray <string> .Empty,
ImmutableArray <ToStringEntry> .Empty,
sourceType.Base,
sourceType.Kind
));
}
else
{
newTypes.Add(sourceType);
}
}
return(new DataModel(source.SourceFilePath, source.MetaData, newTypes));
}
public static IHandlerTypeDescriptor GetHandlerTypeDescriptor(string method)
{
return(KnownHandlers.TryGetValue(method, out var descriptor) ? descriptor : null);
}
public IProject Get(string projectPath)
{
projects.TryGetValue(projectPath, out IProject result);
return(result);
}