internal override bool TryAddSuggestionsForNodeKind(IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(intellisenseData);
TexlNode curNode = intellisenseData.CurNode;
// Cursor is in the operation token.
// Suggest binary operators.
BinaryOpNode binaryOpNode = curNode.CastBinaryOp();
var tokenSpan = binaryOpNode.Token.Span;
string keyword = binaryOpNode.Op == BinaryOp.Error ? tokenSpan.GetFragment(intellisenseData.Script) : TexlParser.GetTokString(binaryOpNode.Token.Kind);
int replacementLength = tokenSpan.Min == intellisenseData.CursorPos ? 0 : tokenSpan.Lim - tokenSpan.Min;
intellisenseData.SetMatchArea(tokenSpan.Min, intellisenseData.CursorPos, replacementLength);
intellisenseData.BoundTo = binaryOpNode.Op == BinaryOp.Error ? string.Empty : keyword;
AddSuggestionsForBinaryOperatorKeyWords(intellisenseData);
return(true);
}
public bool HasErrorsInTree(TexlNode rootNode, DocumentErrorSeverity severity = DocumentErrorSeverity.Suggestion)
{
Contracts.AssertValue(rootNode);
if (CollectionUtils.Size(_errors) == 0)
{
return(false);
}
foreach (var err in _errors)
{
if (err.Node.InTree(rootNode) && err.Severity >= severity)
{
return(true);
}
}
return(false);
}
private static bool TryGetLocalScopeInfo(TexlNode node, TexlBinding binding, out ScopedNameLookupInfo info)
{
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
if (node.Kind == NodeKind.FirstName)
{
FirstNameNode curNode = node.CastFirstName();
var firstNameInfo = binding.GetInfo(curNode);
if (firstNameInfo.Kind == BindKind.ScopeArgument)
{
info = (ScopedNameLookupInfo)firstNameInfo.Data;
return(true);
}
}
info = new ScopedNameLookupInfo();
return(false);
}
// 1.
// <CallNode>
// |
// <ListNode>
// |
// <Error RecordNode>[Cursor position]
// For example, Patch(Accounts, OldRecord, UpdateRecord, {<Cursor position>
// 2.
// <CallNode>
// |
// <ListNode>
// |
// <RecordNode>
// |
// <Error Node>[Cursor position]
// For example, Patch(Accounts, OldRecord, UpdateRecord, {A:"",<cursor position>})
// 3.
// <CallNode>
// |
// <ListNode>
// |
// <VariadicOpNode>
// |
// <RecordNode>
// |
// <Error Identifier Node> [Cursor position]
// For example, Patch(Accounts, OldRecord, UpdateRecord, { 'Account Name': ""});
// Patch(Accounts, OldRecord, UpdateRecord,{<Cursor position>);
private static bool TryGetRecordNodeWithinACallNode(TexlNode node, out RecordNode recordNode, out CallNode callNode)
{
Contracts.AssertValue(node);
if (!TryGetParentRecordNode(node, out recordNode) || !TryGetParentListNode(recordNode, out ListNode listNode))
{
callNode = null;
return(false);
}
if (!(listNode.Parent is CallNode cNode))
{
callNode = null;
return(false);
}
callNode = cNode;
return(true);
}
private static bool TryGetParentListNode(RecordNode node, out ListNode listNode)
{
Contracts.AssertValue(node);
TexlNode parentNode = node;
while (parentNode != null)
{
if (parentNode.Kind == NodeKind.List)
{
listNode = parentNode.AsList();
return(true);
}
parentNode = parentNode.Parent;
}
listNode = null;
return(false);
}
private static bool TryGetParentRecordNode(TexlNode node, out RecordNode recordNode)
{
Contracts.AssertValue(node);
TexlNode parentNode = node;
while (parentNode != null)
{
if (parentNode.Kind == NodeKind.Record)
{
recordNode = parentNode.AsRecord();
return(true);
}
parentNode = parentNode.Parent;
}
recordNode = null;
return(false);
}
// Helper used to provide hints when we detect non-delegable parts of the expression due to server restrictions.
protected void SuggestDelegationHint(TexlNode node, TexlBinding binding, ErrorResourceKey?suggestionKey, params object[] args)
{
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
Contracts.Assert(suggestionKey == null || suggestionKey?.Key != string.Empty);
if (suggestionKey == null)
{
suggestionKey = TexlStrings.SuggestRemoteExecutionHint;
}
if (args == null || args.Length == 0)
{
binding.ErrorContainer.EnsureError(DocumentErrorSeverity.Warning, node, (ErrorResourceKey)suggestionKey, _function.Name);
}
else
{
binding.ErrorContainer.EnsureError(DocumentErrorSeverity.Warning, node, (ErrorResourceKey)suggestionKey, args);
}
}
public bool TryGetValidValue(TexlNode argNode, TexlBinding binding, out IExpandInfo entityInfo)
{
Contracts.AssertValue(argNode);
Contracts.AssertValue(binding);
entityInfo = null;
switch (argNode.Kind)
{
case NodeKind.FirstName:
return(TryGetEntityInfo(argNode.AsFirstName(), binding, out entityInfo));
case NodeKind.Call:
return(TryGetEntityInfo(argNode.AsCall(), binding, out entityInfo));
case NodeKind.DottedName:
return(TryGetEntityInfo(argNode.AsDottedName(), binding, out entityInfo));
}
return(false);
}
private TexlNode ParseExprChain(TexlNode node, ITexlSource leftTrivia)
{
Contracts.AssertValue(node);
Contracts.Assert(_curs.TidCur == TokKind.Semicolon);
var delimiters = new List <Token>(1);
var expressions = new List <TexlNode>(2);
expressions.Add(node);
var sourceList = new List <ITexlSource>();
sourceList.Add(new NodeSource(node));
sourceList.Add(leftTrivia);
while (_curs.TidCur == TokKind.Semicolon)
{
var delimiter = _curs.TokMove();
delimiters.Add(delimiter);
sourceList.Add(new TokenSource(delimiter));
sourceList.Add(ParseTrivia());
if (_curs.TidCur == TokKind.Eof || _curs.TidCur == TokKind.Comma || _curs.TidCur == TokKind.ParenClose)
{
break;
}
// SingleExpr here means we don't want chains on the RHS, but individual expressions.
var expression = ParseExpr(Precedence.SingleExpr);
expressions.Add(expression);
sourceList.Add(new NodeSource(expression));
sourceList.Add(ParseTrivia());
}
return(new VariadicOpNode(
ref _idNext,
VariadicOp.Chain,
expressions.ToArray(),
delimiters.ToArray(),
new SourceList(sourceList)));
}
public override bool PreVisit(BinaryOpNode node)
{
Contracts.AssertValue(node);
// Cursor is in the left node.
if (_cursorPosition <= node.Token.Span.Min)
{
node.Left.Accept(this);
return(false);
}
// Cursor is inside the operation token.
if (_cursorPosition <= node.Token.Span.Lim)
{
_result = node;
return(false);
}
node.Right.Accept(this);
return(false);
}
private bool IsValidSortOrderNode(TexlNode node, SortOpMetadata metadata, TexlBinding binding, DPath columnPath)
{
Contracts.AssertValue(node);
Contracts.AssertValue(metadata);
Contracts.AssertValue(binding);
Contracts.AssertValid(columnPath);
if (binding.IsAsync(node))
{
AddSuggestionMessageToTelemetry("Async sortorder node.", node, binding);
DelegationTrackerCore.SetDelegationTrackerStatus(DelegationStatus.AsyncSortOrder, node, binding, this, DelegationTelemetryInfo.CreateEmptyDelegationTelemetryInfo());
return(false);
}
string sortOrder;
switch (node.Kind)
{
case NodeKind.FirstName:
case NodeKind.StrLit:
return(_sortOrderValidator.TryGetValidValue(node, binding, out sortOrder) &&
IsSortOrderSuppportedByColumn(node, binding, sortOrder, metadata, columnPath));
case NodeKind.DottedName:
case NodeKind.Call:
if (_sortOrderValidator.TryGetValidValue(node, binding, out sortOrder) &&
IsSortOrderSuppportedByColumn(node, binding, sortOrder, metadata, columnPath))
{
return(true);
}
// If both ascending and descending are supported then we can support this.
return(IsSortOrderSuppportedByColumn(node, binding, LanguageConstants.DescendingSortOrderString, metadata, columnPath) &&
IsSortOrderSuppportedByColumn(node, binding, LanguageConstants.AscendingSortOrderString, metadata, columnPath));
default:
AddSuggestionMessageToTelemetry("Unsupported sortorder node kind.", node, binding);
return(false);
}
}
private bool IsValidSortOrderNode(TexlNode node, SortOpMetadata metadata, TexlBinding binding, DPath columnPath)
{
Contracts.AssertValue(node);
Contracts.AssertValue(metadata);
Contracts.AssertValue(binding);
Contracts.AssertValid(columnPath);
if (binding.IsAsync(node))
{
var message = string.Format("Function:{0}, SortOrderNode is async", Name);
AddSuggestionMessageToTelemetry(message, node, binding);
return(false);
}
string sortOrder;
switch (node.Kind)
{
case NodeKind.FirstName:
case NodeKind.StrLit:
return(_sortOrderValidator.TryGetValidValue(node, binding, out sortOrder) &&
IsSortOrderSuppportedByColumn(sortOrder, metadata, columnPath));
case NodeKind.DottedName:
case NodeKind.Call:
if (_sortOrderValidator.TryGetValidValue(node, binding, out sortOrder) &&
IsSortOrderSuppportedByColumn(sortOrder, metadata, columnPath))
{
return(true);
}
// If both ascending and descending are supported then we can support this.
return(IsSortOrderSuppportedByColumn(Microsoft.PowerFx.Core.Utils.LanguageConstants.DescendingSortOrderString, metadata, columnPath) &&
IsSortOrderSuppportedByColumn(Microsoft.PowerFx.Core.Utils.LanguageConstants.AscendingSortOrderString, metadata, columnPath));
default:
AddSuggestionMessageToTelemetry("Unsupported sortorder node.", node, binding);
return(false);
}
}
public override bool PreVisit(RecordNode node)
{
Contracts.AssertValue(node);
Contracts.Assert(node.Token.Kind == TokKind.CurlyOpen || node.Token.Kind == TokKind.Ident);
if (_cursorPosition <= node.Token.Span.Min || // If cursor position is before the open curly return the record node.
node.Count == 0 || // Or if the record node is empty, return the record node.
(node.CurlyClose != null && node.CurlyClose.Span.Lim <= _cursorPosition)) // Cursor is after the closed curly.
{
_result = node;
return(false);
}
// Cursor is between the open and closed curly.
int length = CollectionUtils.Size(node.Commas);
for (int i = 0; i < length; i++)
{
Token tokComma = node.Commas[i];
// Cursor position is inside ith child.
if (_cursorPosition <= tokComma.Span.Min)
{
node.Children[i].Accept(this);
return(false);
}
}
if (node.CurlyClose == null || _cursorPosition <= node.CurlyClose.Span.Min)
{
// Cursor is within the last child.
node.Children[node.Children.Length - 1].Accept(this);
return(false);
}
// Cursor is after the closing curly.
_result = node;
return(false);
}
public static DType ScopeTypeForArgumentSuggestions(CallNode callNode, IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(callNode);
Contracts.AssertValue(intellisenseData);
var info = intellisenseData.Binding.GetInfo(callNode);
if (info.Function.UseParentScopeForArgumentSuggestions)
{
return(ClosestParentScopeTypeForSuggestions(callNode, intellisenseData));
}
if (callNode.Args.Count <= info.Function.SuggestionTypeReferenceParamIndex)
{
return(DType.Unknown);
}
TexlNode referenceArg = callNode.Args.Children[info.Function.SuggestionTypeReferenceParamIndex];
return(info.Function.UsesEnumNamespace ? GetEnumType(intellisenseData, referenceArg) : intellisenseData.Binding.GetType(referenceArg));
}
internal static DType ClosestParentScopeTypeForSuggestions(CallNode callNode, IntellisenseData.IntellisenseData intellisenseData)
{
Contracts.AssertValue(callNode);
Contracts.AssertValue(intellisenseData);
TexlNode currentNode = callNode;
while (currentNode.Parent != null)
{
currentNode = currentNode.Parent;
if (currentNode is CallNode callNodeCurr)
{
DType parentScopeType = ScopeTypeForArgumentSuggestions(callNodeCurr, intellisenseData);
if (parentScopeType != null && parentScopeType != DType.Unknown)
{
return(parentScopeType);
}
}
}
return(DType.Unknown);
}
private LazyList <string> Basic(TexlNode node, Context context)
{
return(LazyList <string> .Of(
node.SourceList.Sources
.SelectMany(source =>
{
var nodeSource = source as NodeSource;
if (nodeSource != null)
{
return nodeSource.Node.Accept(this, context);
}
else if (source is WhitespaceSource)
{
return LazyList <string> .Of(" ");
}
else
{
return source.Tokens.Select(GetScriptForToken);
}
})));
}
private static bool TryGetNamespaceFunctions(TexlNode node, TexlBinding binding, out IEnumerable <TexlFunction> functions)
{
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
FirstNameNode curNode = node.AsFirstName();
if (curNode == null)
{
functions = EmptyEnumerator <TexlFunction> .Instance;
return(false);
}
FirstNameInfo firstNameInfo = binding.GetInfo(curNode).VerifyValue();
Contracts.AssertValid(firstNameInfo.Name);
DPath namespacePath = new DPath().Append(firstNameInfo.Name);
functions = binding.NameResolver.LookupFunctionsInNamespace(namespacePath);
return(functions.Any());
}
public bool TryGetValidValue(TexlNode argNode, TexlBinding binding, out IExternalDataSource dsInfo)
{
Contracts.AssertValue(argNode);
Contracts.AssertValue(binding);
dsInfo = null;
switch (argNode.Kind)
{
case NodeKind.FirstName:
return(TryGetDsInfo(argNode.AsFirstName(), binding, out dsInfo));
case NodeKind.Call:
return(TryGetDsInfo(argNode.AsCall(), binding, out dsInfo));
case NodeKind.DottedName:
return(TryGetDsInfo(argNode.AsDottedName(), binding, out dsInfo));
case NodeKind.As:
return(TryGetValidValue(argNode.AsAsNode().Left, binding, out dsInfo));
}
return(false);
}
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);
}
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);
}
private bool TryGetValidSortOrderNode(DottedNameNode node, TexlBinding binding, out string sortOrder)
{
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
sortOrder = "";
TexlNode lhsNode = node.Left;
var orderEnum = lhsNode.AsFirstName();
if (orderEnum == null)
{
return(false);
}
// Verify order enum
if (!VerifyFirstNameNodeIsValidSortOrderEnum(orderEnum, binding))
{
return(false);
}
string order = node.Right.Name.Value;
return(IsValidOrderString(order, out sortOrder));
}
private bool TryGetDSNodes(TexlBinding binding, TexlNode[] args, out IList<FirstNameNode> dsNodes)
{
dsNodes = new List<FirstNameNode>();
var count = args.Count();
for (int i = 2; i < count;)
{
TexlNode nodeArg = args[i];
IList<FirstNameNode> tmpDsNodes;
if (ArgValidators.DataSourceArgNodeValidator.TryGetValidValue(nodeArg, binding, out tmpDsNodes))
{
foreach (var node in tmpDsNodes)
dsNodes.Add(node);
}
// If there are an odd number of args, the last arg also participates.
i += 2;
if (i == count)
i--;
}
return dsNodes.Any();
}
public override bool CheckInvocation(TexlBinding binding, TexlNode[] args, DType[] argTypes, IErrorContainer errors, out DType returnType, out Dictionary <TexlNode, DType> nodeToCoercedTypeMap)
{
Contracts.AssertValue(args);
Contracts.AssertAllValues(args);
Contracts.AssertValue(argTypes);
Contracts.Assert(args.Length == argTypes.Length);
Contracts.AssertValue(errors);
Contracts.Assert(MinArity <= args.Length && args.Length <= MaxArity);
bool fValid = base.CheckInvocation(args, argTypes, errors, out returnType, out nodeToCoercedTypeMap);
if (argTypes.Length == 2)
{
DType type0 = argTypes[0];
DType type1 = argTypes[1];
DType otherType = DType.Invalid;
TexlNode otherArg = null;
// At least one of the arguments has to be a table.
if (type0.IsTable)
{
// Ensure we have a one-column table of numerics
fValid &= CheckNumericColumnType(type0, args[0], errors, ref nodeToCoercedTypeMap);
// Borrow the return type from the 1st arg
returnType = type0;
// Check arg1 below.
otherArg = args[1];
otherType = type1;
}
else if (type1.IsTable)
{
// Ensure we have a one-column table of numerics
fValid &= CheckNumericColumnType(type1, args[1], errors, ref nodeToCoercedTypeMap);
// Since the 1st arg is not a table, make a new table return type *[Result:n]
returnType = DType.CreateTable(new TypedName(DType.Number, OneColumnTableResultName));
// Check arg0 below.
otherArg = args[0];
otherType = type0;
}
else
{
Contracts.Assert(returnType.IsTable);
errors.EnsureError(DocumentErrorSeverity.Severe, args[0], TexlStrings.ErrTypeError);
errors.EnsureError(DocumentErrorSeverity.Severe, args[1], TexlStrings.ErrTypeError);
// Both args are invalid. No need to continue.
return(false);
}
Contracts.Assert(otherType.IsValid);
Contracts.AssertValue(otherArg);
Contracts.Assert(returnType.IsTable);
Contracts.Assert(!fValid || returnType.IsColumn);
if (otherType.IsTable)
{
// Ensure we have a one-column table of numerics
fValid &= CheckNumericColumnType(otherType, otherArg, errors, ref nodeToCoercedTypeMap);
}
else if (!DType.Number.Accepts(otherType))
{
if (otherType.CoercesTo(DType.Number))
{
CollectionUtils.Add(ref nodeToCoercedTypeMap, otherArg, DType.Number);
}
else
{
fValid = false;
errors.EnsureError(DocumentErrorSeverity.Severe, otherArg, TexlStrings.ErrTypeError);
}
}
}
else
{
DType type0 = argTypes[0];
if (type0.IsTable)
{
// Ensure we have a one-column table of numerics
fValid &= CheckNumericColumnType(type0, args[0], errors, ref nodeToCoercedTypeMap);
// Borrow the return type from the 1st arg
returnType = type0;
}
else
{
Contracts.Assert(returnType.IsTable);
errors.EnsureError(DocumentErrorSeverity.Severe, args[0], TexlStrings.ErrTypeError);
return(false);
}
}
return(fValid);
}
private bool IsArgTypeInconsequential(TexlNode arg)
{
Contracts.AssertValue(arg);
Contracts.Assert(arg.Parent is ListNode);
Contracts.Assert(arg.Parent.Parent is CallNode);
Contracts.Assert(arg.Parent.Parent.AsCall().Head.Name == Name);
CallNode call = arg.Parent.Parent.AsCall().VerifyValue();
// Pattern: OnSelect = If(cond, argT, argF)
// Pattern: OnSelect = If(cond, arg1, cond, arg2, ..., argK, argF)
// Pattern: OnSelect = If(cond, arg1, If(cond, argT, argF))
// Pattern: OnSelect = If(cond, arg1, If(cond, arg2, cond, arg3, ...))
// Pattern: OnSelect = If(cond, arg1, cond, If(cond, arg2, cond, arg3, ...), ...)
// ...etc.
CallNode ancestor = call;
while (ancestor.Head.Name == Name)
{
if (ancestor.Parent == null && ancestor.Args.Children.Length > 0)
{
for (int i = 0; i < ancestor.Args.Children.Length; i += 2)
{
// If the given node is part of a condition arg of an outer If invocation,
// then it's NOT inconsequential. Note that the very last arg to an If
// is not a condition -- it's the "else" branch, hence the test below.
if (i != ancestor.Args.Children.Length - 1 && arg.InTree(ancestor.Args.Children[i]))
{
return(false);
}
}
return(true);
}
// Deal with the possibility that the ancestor may be contributing to a chain.
// This also lets us cover the following patterns:
// Pattern: OnSelect = X; If(cond, arg1, arg2); Y; Z
// Pattern: OnSelect = X; If(cond, arg1;arg11;...;arg1k, arg2;arg21;...;arg2k); Y; Z
// ...etc.
VariadicOpNode chainNode;
if ((chainNode = ancestor.Parent.AsVariadicOp()) != null && chainNode.Op == VariadicOp.Chain)
{
// Top-level chain in a behavior rule.
if (chainNode.Parent == null)
{
return(true);
}
// A chain nested within a larger non-call structure.
if (!(chainNode.Parent is ListNode) || !(chainNode.Parent.Parent is CallNode))
{
return(false);
}
// Only the last chain segment is consequential.
int numSegments = chainNode.Children.Length;
if (numSegments > 0 && !arg.InTree(chainNode.Children[numSegments - 1]))
{
return(true);
}
// The node is in the last segment of a chain nested within a larger invocation.
ancestor = chainNode.Parent.Parent.AsCall();
continue;
}
// Walk up the parent chain to the outer invocation.
if (!(ancestor.Parent is ListNode) || !(ancestor.Parent.Parent is CallNode))
{
return(false);
}
ancestor = ancestor.Parent.Parent.AsCall();
}
// Exhausted all supported patterns.
return(false);
}
public override bool CheckInvocation(TexlBinding binding, TexlNode[] args, DType[] argTypes, IErrorContainer errors, out DType returnType, out Dictionary <TexlNode, DType> nodeToCoercedTypeMap)
{
Contracts.AssertValue(binding);
Contracts.AssertValue(args);
Contracts.AssertAllValues(args);
Contracts.AssertValue(argTypes);
Contracts.Assert(args.Length == argTypes.Length);
Contracts.AssertValue(errors);
Contracts.Assert(MinArity <= args.Length && args.Length <= MaxArity);
int count = args.Length;
nodeToCoercedTypeMap = null;
// Check the predicates.
bool fArgsValid = true;
for (int i = 0; i < (count & ~1); i += 2)
{
bool withCoercion;
fArgsValid &= CheckType(args[i], argTypes[i], DType.Boolean, errors, true, out withCoercion);
if (withCoercion)
{
CollectionUtils.Add(ref nodeToCoercedTypeMap, args[i], DType.Boolean);
}
}
DType type = ReturnType;
// Are we on a behavior property?
bool isBehavior = binding.IsBehavior;
// Compute the result type by joining the types of all non-predicate args.
Contracts.Assert(type == DType.Unknown);
for (int i = 1; i < count;)
{
TexlNode nodeArg = args[i];
DType typeArg = argTypes[i];
if (typeArg.IsError)
{
errors.EnsureError(args[i], TexlStrings.ErrTypeError);
}
DType typeSuper = DType.Supertype(type, typeArg);
if (!typeSuper.IsError)
{
type = typeSuper;
}
else if (type.Kind == DKind.Unknown)
{
type = typeSuper;
fArgsValid = false;
}
else if (!type.IsError)
{
if (typeArg.CoercesTo(type))
{
CollectionUtils.Add(ref nodeToCoercedTypeMap, nodeArg, type);
}
else if (!isBehavior || !IsArgTypeInconsequential(nodeArg))
{
errors.EnsureError(DocumentErrorSeverity.Severe, nodeArg, TexlStrings.ErrBadType_ExpectedType_ProvidedType,
type.GetKindString(),
typeArg.GetKindString());
fArgsValid = false;
}
}
else if (typeArg.Kind != DKind.Unknown)
{
type = typeArg;
fArgsValid = false;
}
// If there are an odd number of args, the last arg also participates.
i += 2;
if (i == count)
{
i--;
}
}
// Update the return type based on the specified invocation args.
returnType = type;
return(fArgsValid);
}
public virtual bool IsOpSupportedByTable(OperationCapabilityMetadata metadata, TexlNode node, TexlBinding binding)
{
Contracts.AssertValue(metadata);
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
if (!metadata.IsBinaryOpInDelegationSupported(_binaryOp))
{
SuggestDelegationHint(node, binding, TexlStrings.OpNotSupportedByClientSuggestionMessage_OpNotSupportedByClient, _binaryOp.ToString());
return(false);
}
if (!metadata.IsBinaryOpSupportedByTable(_binaryOp))
{
SuggestDelegationHint(node, binding, TexlStrings.OpNotSupportedByServiceSuggestionMessage_OpNotSupportedByService, _binaryOp.ToString());
return(false);
}
return(true);
}
private LazyList <string> PrettyBinary(string strOp, Precedence parentPrecedence, Precedence precLeft, Precedence precRight, TexlNode left, TexlNode right)
{
Contracts.AssertNonEmpty(strOp);
return(ApplyPrecedence(
parentPrecedence,
precLeft,
left.Accept(this, precLeft)
.With(strOp)
.With(right.Accept(this, precRight))));
}
// For left associative operators: precRight == precLeft + 1.
private LazyList <string> PrettyBinary(string strOp, Precedence parentPrecedence, Precedence precLeft, TexlNode left, TexlNode right)
{
return(PrettyBinary(strOp, parentPrecedence, precLeft, precLeft + 1, left, right));
}
public virtual string GetRightToken(TexlNode leftNode, Identifier right)
{
return(right.Token.ToString());
}
// Verifies if given kind of node is supported by function delegation.
private bool IsSupportedNode(TexlNode node, OperationCapabilityMetadata metadata, TexlBinding binding, IOpDelegationStrategy opDelStrategy, bool isRHSNode)
{
Contracts.AssertValue(node);
Contracts.AssertValue(metadata);
Contracts.AssertValue(binding);
Contracts.AssertValue(opDelStrategy);
if (!binding.IsRowScope(node))
{
// Check whether this is -
// 1) in operator delegation and
// 2) it is verifying if RHS node is supported and
// 3) it is not an async node and
// 4) it is a single column table and
// 5) metadata belongs to cds datasource that supports delegation of CdsIn
// If this check fails, verify if it is simply a valid node..
// Eg of valid delegation functions -
// Filter(Accounts, 'Account Name' in ["Foo", Bar"]) - Direct table use
// Set(Names, ["Foo", Bar"]); Filter(Accounts, 'Account Name' in Names) - Using variable of type table
// ClearCollect(Names, Accounts); Filter(Accounts, 'Account Name' in Names.'Account Name') - using column from collection.
// This won't be delegated - Filter(Accounts, 'Account Name' in Accounts.'Account Name') as Accounts.'Account Name' is async.
if ((binding.Document.Properties.EnabledFeatures.IsEnhancedDelegationEnabled &&
isRHSNode && (opDelStrategy as BinaryOpDelegationStrategy)?.Op == BinaryOp.In && !binding.IsAsync(node) && binding.GetType(node).IsTable&& binding.GetType(node).IsColumn&&
metadata.IsDelegationSupportedByTable(DelegationCapability.CdsIn)) ||
IsValidNode(node, binding))
{
return(true);
}
}
switch (node.Kind)
{
case NodeKind.DottedName:
{
if (!opDelStrategy.IsOpSupportedByTable(metadata, node, binding))
{
return(false);
}
var dottedNodeValStrategy = _function.GetDottedNameNodeDelegationStrategy();
return(dottedNodeValStrategy.IsValidDottedNameNode(node.AsDottedName(), binding, metadata, opDelStrategy));
}
case NodeKind.Call:
{
if (!opDelStrategy.IsOpSupportedByTable(metadata, node, binding))
{
return(false);
}
var cNodeValStrategy = _function.GetCallNodeDelegationStrategy();
return(cNodeValStrategy.IsValidCallNode(node.AsCall(), binding, metadata));
}
case NodeKind.FirstName:
{
var firstNameNodeValStrategy = _function.GetFirstNameNodeDelegationStrategy();
return(firstNameNodeValStrategy.IsValidFirstNameNode(node.AsFirstName(), binding, opDelStrategy));
}
case NodeKind.UnaryOp:
{
if (!opDelStrategy.IsOpSupportedByTable(metadata, node, binding))
{
return(false);
}
var unaryopNode = node.AsUnaryOpLit();
IOpDelegationStrategy unaryOpNodeDelegationStrategy = _function.GetOpDelegationStrategy(unaryopNode.Op);
return(unaryOpNodeDelegationStrategy.IsSupportedOpNode(unaryopNode, metadata, binding));
}
case NodeKind.BinaryOp:
{
if (!opDelStrategy.IsOpSupportedByTable(metadata, node, binding))
{
return(false);
}
var binaryOpNode = node.AsBinaryOp().VerifyValue();
opDelStrategy = _function.GetOpDelegationStrategy(binaryOpNode.Op, binaryOpNode);
var binaryOpDelStrategy = (opDelStrategy as BinaryOpDelegationStrategy).VerifyValue();
Contracts.Assert(binaryOpNode.Op == binaryOpDelStrategy.Op);
if (!opDelStrategy.IsSupportedOpNode(node, metadata, binding))
{
SuggestDelegationHint(binaryOpNode, binding);
return(false);
}
break;
}
default:
{
var kind = node.Kind;
if (kind != NodeKind.BoolLit && kind != NodeKind.StrLit && kind != NodeKind.NumLit)
{
var telemetryMessage = string.Format("NodeKind {0} unsupported.", kind);
SuggestDelegationHintAndAddTelemetryMessage(node, binding, telemetryMessage);
return(false);
}
break;
}
}
return(true);
}