/// <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 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;
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);
}
