/// <summary>
/// Adds suggestions as appropriate to the internal Suggestions and SubstringSuggestions lists of intellisenseData.
/// Returns true if intellisenseData is handled and no more suggestions are to be found and false otherwise.
/// </summary>
public bool Run(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(intellisenseData.CurNode);
if (intellisenseData.CurNode.Kind != NodeKind.StrLit && intellisenseData.CurNode.Kind != NodeKind.NumLit)
{
return(false);
}
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
var tokenSpan = curNode.Token.Span;
// Should not suggest anything if the cursor is before the string/number.
if (cursorPos > tokenSpan.Lim && IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Cursor is after the current node's token.
// Suggest binary kewords.
DType operandType = curNode.Kind == NodeKind.StrLit ? DType.String : DType.Number;
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, operandType);
}
else if (cursorPos > tokenSpan.Min)
{
// Cursor is in the middle of the token, Suggest Globals matching the input string or number.
int replacementLength = tokenSpan.Lim - tokenSpan.Min;
intellisenseData.SetMatchArea(tokenSpan.Min, cursorPos, replacementLength);
IntellisenseHelper.AddSuggestionsForGlobals(intellisenseData);
}
return(true);
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
BoolLitNode boolNode = curNode.CastBoolLit();
var tokenSpan = curNode.Token.Span;
if (cursorPos < tokenSpan.Min)
{
// Cursor is before the token start.
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, curNode);
}
else if (cursorPos <= tokenSpan.Lim)
{
// Cursor is in the middle of the token.
int replacementLength = tokenSpan.Min == cursorPos ? 0 : tokenSpan.Lim - tokenSpan.Min;
intellisenseData.SetMatchArea(tokenSpan.Min, cursorPos, replacementLength);
intellisenseData.BoundTo = boolNode.Value ? TexlLexer.KeywordTrue : TexlLexer.KeywordFalse;
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, curNode);
}
else if (IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Verify that cursor is after a space after the current node's token.
// Suggest binary keywords.
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, DType.Boolean);
}
return(true);
}
public static void AddSuggestionsForUnaryOperatorKeyWords(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
// TASK: 76039: Intellisense: Update intellisense to filter suggestions based on the expected type of the text being typed in UI
IntellisenseHelper.AddSuggestionsForMatches(intellisenseData, TexlLexer.LocalizedInstance.GetUnaryOperatorKeywords(), SuggestionKind.KeyWord, SuggestionIconKind.Other, requiresSuggestionEscaping: false);
}
private void AddSuggestionsForLeftNodeScope(IntellisenseData.IntellisenseData intellisenseData, TexlNode leftNode, bool isOneColumnTable, DType leftType)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(leftNode);
Contracts.AssertValue(leftType);
if (!intellisenseData.TryAddSuggestionsForLeftNodeScope(leftNode))
{
if (TryGetEnumInfo(intellisenseData, leftNode, intellisenseData.Binding, out EnumSymbol enumInfo))
{
IntellisenseHelper.AddSuggestionsForEnum(intellisenseData, enumInfo);
}
else if (TryGetNamespaceFunctions(leftNode, intellisenseData.Binding, out IEnumerable <TexlFunction> namespaceFunctions))
{
AddSuggestionsForNamespace(intellisenseData, namespaceFunctions);
}
else if (TryGetLocalScopeInfo(leftNode, intellisenseData.Binding, out ScopedNameLookupInfo info))
{
IntellisenseHelper.AddTopLevelSuggestions(intellisenseData, info.Type);
}
else if (!isOneColumnTable)
{
AddSuggestionsForDottedName(intellisenseData, leftType);
}
}
intellisenseData.OnAddedSuggestionsForLeftNodeScope(leftNode);
}
protected virtual UIString ConstructUIString(SuggestionKind suggestionKind, DType type, IntellisenseSuggestionList suggestions, string valueToSuggest, int highlightStart, int highlightEnd)
{
return(IntellisenseHelper.DisambiguateGlobals(suggestions,
new UIString(valueToSuggest, highlightStart, highlightEnd),
suggestionKind,
type));
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
// Cursor is in the operation token or before.
// Suggest all value possibilities.
UnaryOpNode unaryOpNode = curNode.CastUnaryOp();
var tokenSpan = unaryOpNode.Token.Span;
if (cursorPos < tokenSpan.Min)
{
return(false);
}
Contracts.Assert(cursorPos >= tokenSpan.Min || cursorPos <= tokenSpan.Lim);
string keyword = TexlParser.GetTokString(unaryOpNode.Token.Kind);
Contracts.Assert(intellisenseData.MatchingLength <= keyword.Length);
var replacementLength = tokenSpan.Min == cursorPos ? 0 : tokenSpan.Lim - tokenSpan.Min;
intellisenseData.SetMatchArea(tokenSpan.Min, cursorPos, replacementLength);
intellisenseData.BoundTo = intellisenseData.MatchingLength == 0 ? string.Empty : keyword;
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, curNode);
return(true);
}
public static bool FindCurFuncAndArgs(TexlNode curNode, int cursorPos, TexlBinding binding, out TexlFunction curFunc, out int argIndex, out int argCount, out DType expectedType)
{
Contracts.AssertValue(curNode);
Contracts.AssertValue(binding);
if (curNode.Kind == NodeKind.Call)
{
CallNode callNode = curNode.CastCall();
if (callNode.Token.Span.Lim <= cursorPos && callNode.ParenClose != null && cursorPos <= callNode.ParenClose.Span.Min)
{
CallInfo info = binding.GetInfo(callNode);
if (info.Function != null)
{
curFunc = info.Function;
argIndex = 0;
argCount = callNode.Args.Count;
expectedType = curFunc.ParamTypes.Length > 0 ? curFunc.ParamTypes[0] : DType.Error;
return(true);
}
}
}
if (IntellisenseHelper.TryGetInnerMostFunction(curNode, binding, out curFunc, out argIndex, out argCount))
{
expectedType = curFunc.ParamTypes.Length > argIndex ? curFunc.ParamTypes[argIndex] : DType.Error;
return(true);
}
expectedType = DType.Error;
return(false);
}
// Suggest the Globals that can appear in the context of '[@____]'
// Suggesting controls, datasources, appVariables, and enums.
private static void AddSuggestionsForScopedGlobals(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
var suggestions = intellisenseData.AdditionalGlobalSuggestions
.Union(intellisenseData.EnumSymbols.Select(symbol => new KeyValuePair <string, SuggestionIconKind>(symbol.Name, SuggestionIconKind.Other)));
IntellisenseHelper.AddSuggestionsForMatches(intellisenseData, suggestions, SuggestionKind.Global, requiresSuggestionEscaping: true);
}
private static void AddSuggestionsForScopeFields(IntellisenseData.IntellisenseData intellisenseData, DType scope)
{
Contracts.AssertValue(intellisenseData);
Contracts.Assert(scope.IsValid);
foreach (var field in scope.GetNames(DPath.Root))
{
IntellisenseHelper.AddSuggestion(intellisenseData, TexlLexer.PunctuatorAt + TexlLexer.EscapeName(field.Name.Value), SuggestionKind.Field, SuggestionIconKind.Other, field.Type, requiresSuggestionEscaping: false);
}
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
// Cursor position is after the dot (If it was before the dot FindNode would have returned the left node).
Contracts.Assert(curNode.Token.IsDottedNamePunctuator);
Contracts.Assert(curNode.Token.Span.Lim <= cursorPos);
DottedNameNode dottedNameNode = curNode.CastDottedName();
Identifier ident = dottedNameNode.Right;
string identName = ident.Name;
var leftNode = dottedNameNode.Left;
DType leftType = intellisenseData.Binding.GetType(leftNode);
intellisenseData.BeforeAddSuggestionsForDottedNameNode(leftNode);
bool isOneColumnTable = leftType.IsColumn &&
leftNode.Kind == NodeKind.DottedName &&
leftType.Accepts(intellisenseData.Binding.GetType(((DottedNameNode)leftNode).Left));
if (cursorPos < ident.Token.Span.Min)
{
// Cursor position is before the identifier starts.
// i.e. "this. | Awards"
AddSuggestionsForLeftNodeScope(intellisenseData, leftNode, isOneColumnTable, leftType);
}
else if (cursorPos <= ident.Token.Span.Lim)
{
// Cursor position is in the identifier.
// Suggest fields that don't need to be qualified.
// Identifiers can include open and close brackets and the Token.Span covers them.
// Get the matching string as a substring from the script so that the whitespace is preserved.
intellisenseData.SetMatchArea(ident.Token.Span.Min, cursorPos, ident.Token.Span.Lim - ident.Token.Span.Min);
if (!intellisenseData.Binding.ErrorContainer.HasErrors(dottedNameNode))
{
intellisenseData.BoundTo = identName;
}
AddSuggestionsForLeftNodeScope(intellisenseData, leftNode, isOneColumnTable, leftType);
}
else if (IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Verify that cursor is after a space after the identifier.
// i.e. "this.Awards |"
// Suggest binary operators.
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, intellisenseData.Binding.GetType(dottedNameNode));
}
return(true);
}
/// <summary>
/// Adds suggestions as appropriate to the internal Suggestions and SubstringSuggestions lists of intellisenseData.
/// Returns true if intellisenseData is handled and no more suggestions are to be found and false otherwise.
/// </summary>
public bool Run(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
if (intellisenseData.CurNode != null)
{
return(false);
}
return(IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, null));
}
public static void AddSuggestionsForEnums(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
var suggestions = intellisenseData.Suggestions;
var substringSuggestions = intellisenseData.SubstringSuggestions;
int countSuggBefore = suggestions.Count;
int countSubSuggBefore = substringSuggestions.Count;
foreach (var enumInfo in intellisenseData.EnumSymbols)
{
var enumType = enumInfo.EnumType;
var enumName = enumInfo.Name;
// TASK: 76039: Intellisense: Update intellisense to filter suggestions based on the expected type of the text being typed in UI
IntellisenseHelper.AddSuggestion(intellisenseData, enumName, SuggestionKind.Enum, SuggestionIconKind.Other, enumType, requiresSuggestionEscaping: true);
IntellisenseHelper.AddSuggestionsForEnum(intellisenseData, enumInfo, prefix: enumName + TexlLexer.PunctuatorDot);
}
if (suggestions.Count + substringSuggestions.Count == countSuggBefore + countSubSuggBefore + 1 && intellisenseData.SuggestUnqualifiedEnums)
{
string enumSuggestion = suggestions.Count > countSuggBefore ? suggestions[countSuggBefore].Text : substringSuggestions[countSubSuggBefore].Text;
int dotIndex = enumSuggestion.LastIndexOf(TexlLexer.PunctuatorDot);
// Assert '.' is not present or not at the beginning or the end of the EnumSuggestion
Contracts.Assert(dotIndex == -1 || (0 < dotIndex && dotIndex < enumSuggestion.Length - 1));
var unqualifiedEnum = enumSuggestion.Substring(dotIndex + 1);
// If the Enum we are about suggest unqualified (i.e. just 'Blue' instead of Color!Blue)
// has a name collision with some Item already in the suggestionlist we should not continue
// and suggest it.
if (suggestions.Any(x => x.Text == unqualifiedEnum) || substringSuggestions.Any(x => x.Text == unqualifiedEnum))
{
return;
}
DType enumType;
if (suggestions.Count > countSuggBefore)
{
enumType = suggestions[countSuggBefore].Type;
suggestions.RemoveAt(suggestions.Count - 1);
}
else
{
Contracts.Assert(substringSuggestions.Count > countSubSuggBefore);
enumType = substringSuggestions[countSubSuggBefore].Type;
substringSuggestions.RemoveAt(substringSuggestions.Count - 1);
}
// Add the unqualified Enum.
// Note: The suggestion has already been escaped when it was previously added
IntellisenseHelper.AddSuggestion(intellisenseData, unqualifiedEnum, SuggestionKind.Enum, SuggestionIconKind.Other, enumType, requiresSuggestionEscaping: false);
}
}
internal void AddSuggestionsForNamespace(IntellisenseData.IntellisenseData intellisenseData, IEnumerable <TexlFunction> namespaceFunctions)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(namespaceFunctions);
Contracts.AssertAllValues(namespaceFunctions);
foreach (var function in namespaceFunctions)
{
// Note we're using the unqualified name, since we're on the RHS of a "namespace." identifier.
IntellisenseHelper.AddSuggestion(intellisenseData, function.Name, SuggestionKind.Function, SuggestionIconKind.Function, function.ReturnType, requiresSuggestionEscaping: true);
}
}
private static IEnumerable <KeyValuePair <string, DType> > StringTypeSuggestions(DType scopeType, int argumentIndex, out bool requiresSuggestionEscaping)
{
Contracts.AssertValid(scopeType);
Contracts.Assert(0 <= argumentIndex);
requiresSuggestionEscaping = true;
if (argumentIndex == 0)
{
return(IntellisenseHelper.GetSuggestionsFromType(scopeType, DType.String));
}
return(EnumerableUtils.Yield <KeyValuePair <string, DType> >());
}
/// <summary>
/// Adds suggestions that start with the matchingString from the top level scope of the binding.
/// </summary>
internal static void AddSuggestionsForRuleScope(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(intellisenseData.Binding);
var scopeType = intellisenseData.ContextScope;
if (scopeType == null)
{
return;
}
IntellisenseHelper.AddTopLevelSuggestions(intellisenseData, scopeType);
}
// This method has logic to create Types for the TypedNames for a given type
// if that type is Table.
internal static void AddSuggestionsForDottedName(IntellisenseData.IntellisenseData intellisenseData, DType type)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValid(type);
if (intellisenseData.TryAddCustomDottedNameSuggestions(type))
{
return;
}
if (!type.IsTable)
{
IntellisenseHelper.AddTopLevelSuggestions(intellisenseData, type);
return;
}
IntellisenseHelper.AddSuggestionsForNamesInType(type, intellisenseData, createTableSuggestion: true);
}
internal static void AddSuggestionsForGlobals(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
intellisenseData.AddCustomSuggestionsForGlobals();
// Suggest function namespaces
var namespaces = intellisenseData.Binding.NameResolver.Functions.Select(func => func.Namespace).Distinct();
foreach (var funcNamespace in namespaces)
{
if (funcNamespace == DPath.Root)
{
continue;
}
IntellisenseHelper.AddSuggestion(intellisenseData, funcNamespace.Name, SuggestionKind.Global, SuggestionIconKind.Other, DType.Unknown, requiresSuggestionEscaping: true);
}
}
internal static bool AddSuggestionsForValuePossibilities(IntellisenseData.IntellisenseData intellisenseData, TexlNode node)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(node);
int suggestionCount = intellisenseData.Suggestions.Count() + intellisenseData.SubstringSuggestions.Count();
IntellisenseHelper.AddSuggestionsForRuleScope(intellisenseData);
IntellisenseHelper.AddSuggestionsForTopLevel(intellisenseData, node);
IntellisenseHelper.AddSuggestionsForFunctions(intellisenseData);
intellisenseData.AddSuggestionsForConstantKeywords();
IntellisenseHelper.AddSuggestionsForGlobals(intellisenseData);
intellisenseData.AfterAddSuggestionsForGlobals();
IntellisenseHelper.AddSuggestionsForUnaryOperatorKeyWords(intellisenseData);
intellisenseData.AfterAddSuggestionsForUnaryOperatorKeywords();
IntellisenseHelper.AddSuggestionsForEnums(intellisenseData);
intellisenseData.AddCustomSuggestionsForValuePossibilities();
return(suggestionCount < (intellisenseData.Suggestions.Count() + intellisenseData.SubstringSuggestions.Count()));
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
var tokenSpan = curNode.Token.Span;
// Only suggest after record nodes
if (cursorPos <= tokenSpan.Lim)
{
return(true);
}
if (IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Verify that cursor is after a space after the current node's token.
// Suggest binary keywords.
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, DType.EmptyTable);
}
return(true);
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
// For Error Kind, suggest top level values only in the context of a callNode and
// ThisItemProperties only in the context of thisItem.
TexlNode curNode = intellisenseData.CurNode;
// Three methods that implement custom behavior here, one that adds suggestions before
// top level suggestions are added, one after, and one to handle the case where there aren't
// any top level suggestions to add.
if (intellisenseData.AddSuggestionsBeforeTopLevelErrorNodeSuggestions())
{
return(true);
}
if (!IntellisenseHelper.AddSuggestionsForTopLevel(intellisenseData, curNode))
{
intellisenseData.AddAlternativeTopLevelSuggestionsForErrorNode();
}
intellisenseData.AddSuggestionsAfterTopLevelErrorNodeSuggestions();
return(true);
}
/// <summary>
/// Adds suggestions as appropriate to the internal Suggestions and SubstringSuggestions lists of intellisenseData.
/// Returns true if intellisenseData is handled and no more suggestions are to be found and false otherwise.
/// </summary>
public bool Run(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
if (!TryGetRecordNodeWithinACallNode(intellisenseData.CurNode, out RecordNode recordNode, out CallNode callNode))
{
return(false);
}
// For the special case of an identifier of a record which is an argument of a function, we can
// utilize the data provided to suggest relevant column names
int cursorPos = intellisenseData.CursorPos;
bool suggestionsAdded = false;
Contracts.AssertValue(recordNode);
Contracts.AssertValue(callNode);
Identifier columnName = GetRecordIdentifierForCursorPosition(cursorPos, recordNode, intellisenseData.Script);
if (columnName == null)
{
return(false);
}
if (columnName.Token.Span.Min <= cursorPos)
{
var tokenSpan = columnName.Token.Span;
int replacementLength = tokenSpan.Min == cursorPos ? 0 : tokenSpan.Lim - tokenSpan.Min;
intellisenseData.SetMatchArea(tokenSpan.Min, cursorPos, replacementLength);
}
CallInfo info = intellisenseData.Binding.GetInfo(callNode);
var func = info.Function;
if (func == null || !intellisenseData.IsFunctionElligibleForRecordSuggestions(func))
{
return(false);
}
// Adding suggestions for callNode arguments which reference a collection's columns
if (func.CanSuggestInputColumns)
{
DType aggregateType = GetAggregateType(func, callNode, intellisenseData);
if (aggregateType.HasErrors || !aggregateType.IsAggregate)
{
return(false);
}
if (aggregateType.ContainsDataEntityType(DPath.Root))
{
bool error = false;
aggregateType = aggregateType.DropAllOfTableRelationships(ref error, DPath.Root);
if (error)
{
return(false);
}
}
foreach (TypedName tName in aggregateType.GetNames(DPath.Root))
{
var usedName = tName.Name;
string maybeDisplayName;
if (DType.TryGetDisplayNameForColumn(aggregateType, usedName, out maybeDisplayName))
{
usedName = new DName(maybeDisplayName);
}
string suggestion = TexlLexer.EscapeName(usedName.Value) + (IntellisenseHelper.IsPunctuatorColonNextToCursor(cursorPos, intellisenseData.Script) ? "" : TexlLexer.PunctuatorColon);
suggestionsAdded |= IntellisenseHelper.AddSuggestion(intellisenseData, suggestion, SuggestionKind.Field, SuggestionIconKind.Other, DType.String, requiresSuggestionEscaping: false);
}
return(suggestionsAdded && columnName != null);
}
return(intellisenseData.TryAddFunctionRecordSuggestions(func, callNode, columnName));
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
FirstNameNode firstNameNode = curNode.CastFirstName();
Identifier ident = firstNameNode.Ident;
int min = ident.Token.Span.Min;
IdentToken tok = ident.Token;
if (cursorPos < min)
{
// Cursor is before the beginning of the identifier or of the global token if present.
// Suggest possibilities that can result in a value.
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, curNode);
intellisenseData.AddAdditionalSuggestionsForKeywordSymbols(curNode);
}
else if (cursorPos <= tok.Span.Lim)
{
// Cursor is part of the identifier or global token if present.
// Get the matching string as a substring from the script so that the whitespace is preserved.
IEnumerable <string> possibleFirstNames = intellisenseData.Binding.GetFirstNames().Select(firstNameInfo => firstNameInfo.Name.Value)
.Union(intellisenseData.Binding.GetGlobalNames().Select(firstNameInfo => firstNameInfo.Name.Value))
.Union(intellisenseData.Binding.GetAliasNames().Select(firstNameInfo => firstNameInfo.Name.Value))
.Union(intellisenseData.SuggestableFirstNames);
int replacementLength = IntellisenseHelper.GetReplacementLength(intellisenseData, tok.Span.Min, tok.Span.Lim, possibleFirstNames);
intellisenseData.SetMatchArea(tok.Span.Min, cursorPos, replacementLength);
intellisenseData.BoundTo = intellisenseData.Binding.ErrorContainer.HasErrors(firstNameNode) ? string.Empty : ident.Name;
if (ident.AtToken != null || tok.Kind == TokKind.At)
{
// Suggest globals if cursor is after '@'.
AddSuggestionsForScopedGlobals(intellisenseData);
}
else if (tok.HasDelimiters && cursorPos > tok.Span.Min)
{
// Suggest top level fields and globals if cursor is after a opening square bracket.
IntellisenseHelper.AddSuggestionsForRuleScope(intellisenseData);
IntellisenseHelper.AddSuggestionsForTopLevel(intellisenseData, curNode);
IntellisenseHelper.AddSuggestionsForGlobals(intellisenseData);
intellisenseData.AddAdditionalSuggestionsForLocalSymbols();
}
else
{
// Suggest value posssibilities otherwise.
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, curNode);
}
intellisenseData.AddAdditionalSuggestionsForKeywordSymbols(curNode);
}
else if (IsBracketOpen(tok.Span.Lim, cursorPos, intellisenseData.Script))
{
AddSuggestionsForScopeFields(intellisenseData, intellisenseData.Binding.GetType(firstNameNode));
}
else if (IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Verify that cursor is after a space after the identifier.
// Suggest binary keywords.
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, intellisenseData.Binding.GetType(firstNameNode));
}
return(true);
}
protected virtual bool CheckAndAddSuggestion(IntellisenseSuggestionList suggestions, IntellisenseSuggestion candidate)
{
return(IntellisenseHelper.CheckAndAddSuggestion(candidate, suggestions));
}
public bool AddSuggestion(IntellisenseData.IntellisenseData intellisenseData, string suggestion, SuggestionKind suggestionKind, SuggestionIconKind iconKind, DType type, bool requiresSuggestionEscaping, uint sortPriority = 0)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(suggestion);
if (!intellisenseData.DetermineSuggestibility(suggestion, type))
{
return(false);
}
IntellisenseSuggestionList suggestions = intellisenseData.Suggestions;
IntellisenseSuggestionList substringSuggestions = intellisenseData.SubstringSuggestions;
int matchingLength = intellisenseData.MatchingLength;
string matchingStr = intellisenseData.MatchingStr;
string boundTo = intellisenseData.BoundTo;
var valueToSuggest = requiresSuggestionEscaping ? TexlLexer.EscapeName(suggestion) : suggestion;
int highlightStart = suggestion.IndexOf(matchingStr, StringComparison.OrdinalIgnoreCase);
// If the suggestion has special characters we need to find the highlightStart index by escaping the matching string as well.
// Because, the suggestion could be something like 'Ident with Space' and the user might have typed Ident. In this case,
// we want to highlight only Ident while displaying 'Ident with Space'.
if (requiresSuggestionEscaping && !string.IsNullOrEmpty(matchingStr) && valueToSuggest != suggestion && highlightStart == 0)
{
highlightStart++;
}
else
{
matchingLength--;
}
int highlightEnd = highlightStart + matchingStr.Length;
if (IntellisenseHelper.IsMatch(suggestion, matchingStr))
{
// In special circumstance where the user escapes an identifier where they don't have to, the matching length will
// include the starting delimiter that user provided, where as the suggestion would not include any delimiters.
// Hence we have to count for that fact.
if (matchingLength > 0 & matchingLength > matchingStr.Length)
{
highlightEnd = matchingLength > valueToSuggest.Length ? valueToSuggest.Length : matchingLength;
}
UIString UIsuggestion = ConstructUIString(suggestionKind, type, suggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(suggestions, candidate));
}
if (highlightStart > -1)
{
UIString UIsuggestion = ConstructUIString(suggestionKind, type, substringSuggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(substringSuggestions, candidate));
}
return(false);
}
internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
int cursorPos = intellisenseData.CursorPos;
CallNode callNode = curNode.CastCall();
int spanMin = callNode.Head.Token.Span.Min;
int spanLim = callNode.Head.Token.Span.Lim;
// Handling the special case for service functions with non-empty namespaces.
// We have to consider the namespace as the begining of the callNode for intellisense purposes.
if (callNode.HeadNode != null)
{
var dottedNode = callNode.HeadNode.AsDottedName();
spanMin = dottedNode.Left.Token.Span.Min;
spanLim = dottedNode.Right.Token.Span.Lim;
}
if (cursorPos < spanMin)
{
// Cursor is before the head
// i.e. "| Filter(....)"
// Suggest possibilities that can result in a value.
IntellisenseHelper.AddSuggestionsForValuePossibilities(intellisenseData, callNode);
}
else if (cursorPos <= spanLim)
{
// Cursor is in the head.
// Suggest function names.
// Get the matching string as a substring from the script so that the whitespace is preserved.
int replacementLength = IntellisenseHelper.GetReplacementLength(intellisenseData, spanMin, spanLim, intellisenseData.Binding.NameResolver.Functions.Select(function => function.Name));
// If we are replacing the full token, also include the opening paren (since this will be provided by the suggestion)
if (replacementLength == spanLim - spanMin)
{
replacementLength += TexlLexer.PunctuatorParenOpen.Length;
}
intellisenseData.SetMatchArea(spanMin, cursorPos, replacementLength);
intellisenseData.BoundTo = intellisenseData.Binding.ErrorContainer.HasErrors(callNode) ? string.Empty : callNode.Head.Name;
IntellisenseHelper.AddSuggestionsForFunctions(intellisenseData);
}
else if (callNode.Token.Span.Lim > cursorPos || callNode.ParenClose == null)
{
// Handling the erroneous case when user enters a space after functionName and cursor is after space.
// Cursor is before the open paren of the function.
// Eg: "Filter | (" AND "Filter | (some Table, some predicate)"
return(false);
}
else
{
// If there was no closed parenthesis we would have an error node.
Contracts.Assert(callNode.ParenClose != null);
if (cursorPos <= callNode.ParenClose.Span.Min)
{
// Cursor position is before the closed parenthesis and there are no arguments.
// If there were arguments FindNode should have returned one of those.
if (intellisenseData.CurFunc != null && intellisenseData.CurFunc.MaxArity > 0)
{
IntellisenseHelper.AddSuggestionsForTopLevel(intellisenseData, callNode);
}
}
else if (IntellisenseHelper.CanSuggestAfterValue(cursorPos, intellisenseData.Script))
{
// Verify that cursor is after a space after the closed parenthesis and
// suggest binary operators.
IntellisenseHelper.AddSuggestionsForAfterValue(intellisenseData, intellisenseData.Binding.GetType(callNode));
}
}
return(true);
}
