/// <summary>
/// Resolve property <paramref name="name" /> off the <paramref name="valueExpr" />.
/// </summary>
internal ValueExpression ResolvePropertyAccess(DbExpression valueExpr, string name, ErrorContext errCtx)
{
DbExpression propertyExpr;
if (TryResolveAsPropertyAccess(valueExpr, name, out propertyExpr))
{
return(new ValueExpression(propertyExpr));
}
if (TryResolveAsRefPropertyAccess(valueExpr, name, errCtx, out propertyExpr))
{
return(new ValueExpression(propertyExpr));
}
if (TypeSemantics.IsCollectionType(valueExpr.ResultType))
{
var message = Strings.NotAMemberOfCollection(name, valueExpr.ResultType.EdmType.FullName);
throw EntitySqlException.Create(errCtx, message, null);
}
else
{
var message = Strings.NotAMemberOfType(name, valueExpr.ResultType.EdmType.FullName);
throw EntitySqlException.Create(errCtx, message, null);
}
}
public void GroupSum1()
{
var esql = "select o.OrderId, sum(o.UnitPrice) from OrderDetails as o";
Exception ee = null;
try
{
ef.CreateQuery <IDataRecord>(esql).Execute(MergeOption.NoTracking);
}
catch (Exception exc)
{
ee = exc;
Console.WriteLine(exc.Message);
}
Assert.IsNotNull(ee);
EntitySqlException e = null;
try
{
db.CreateQuery(esql).Execute();
}
catch (EntitySqlException exc)
{
e = exc;
Console.WriteLine(exc.Message);
}
Assert.IsNotNull(e);
AssertAreEqual(() => Res.InvalidGroupIdentifierReference, e.ErrorName);
}
// <summary>
// Declares inline function in the query local metadata.
// </summary>
internal void DeclareInlineFunction(string name, InlineFunctionInfo functionInfo)
{
DebugCheck.NotEmpty(name);
DebugCheck.NotNull(functionInfo);
List <InlineFunctionInfo> overloads;
if (!_functionDefinitions.TryGetValue(name, out overloads))
{
overloads = new List <InlineFunctionInfo>();
_functionDefinitions.Add(name, overloads);
}
//
// Check overload uniqueness.
//
if (overloads.Exists(
overload =>
overload.Parameters.Select(p => p.ResultType).SequenceEqual(
functionInfo.Parameters.Select(p => p.ResultType), TypeUsageStructuralComparer.Instance)))
{
var errCtx = functionInfo.FunctionDefAst.ErrCtx;
var message = Strings.DuplicatedInlineFunctionOverload(name);
throw EntitySqlException.Create(errCtx, message, null);
}
overloads.Add(functionInfo);
}
// <summary>
// Initializes identifier.
// </summary>
internal Identifier(string name, bool isEscaped, string query, int inputPos)
: base(query, inputPos)
{
// name may be empty in the case of "byte[]".
// "byte" and "[]" come in as two identifiers where second one is escaped and empty.
Debug.Assert(isEscaped || name[0] != '[', "isEscaped || name[0] != '['");
if (!isEscaped)
{
var isIdentifierASCII = true;
if (!CqlLexer.IsLetterOrDigitOrUnderscore(name, out isIdentifierASCII))
{
if (isIdentifierASCII)
{
var errCtx = ErrCtx;
var message = Strings.InvalidSimpleIdentifier(name);
throw EntitySqlException.Create(errCtx, message, null);
}
else
{
var errCtx = ErrCtx;
var message = Strings.InvalidSimpleIdentifierNonASCII(name);
throw EntitySqlException.Create(errCtx, message, null);
}
}
}
_name = name;
_isEscaped = isEscaped;
}
private static object DefaultNumericConversion(string numericString, ErrorContext errCtx)
{
if (-1 != numericString.IndexOfAny(Literal._floatTokens))
{
double result;
if (!double.TryParse(numericString, NumberStyles.Float, (IFormatProvider)CultureInfo.InvariantCulture, out result))
{
string errorMessage = Strings.CannotConvertNumericLiteral((object)numericString, (object)"double");
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
return((object)result);
}
int result1;
if (int.TryParse(numericString, NumberStyles.Integer, (IFormatProvider)CultureInfo.InvariantCulture, out result1))
{
return((object)result1);
}
long result2;
if (!long.TryParse(numericString, NumberStyles.Integer, (IFormatProvider)CultureInfo.InvariantCulture, out result2))
{
string errorMessage = Strings.CannotConvertNumericLiteral((object)numericString, (object)"long");
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
return((object)result2);
}
internal ExpressionResolution ResolveSimpleName(string name, bool leftHandSideOfMemberAccess, ErrorContext errCtx)
{
DebugCheck.NotEmpty(name);
//
// Try resolving as a scope entry.
//
ScopeEntry scopeEntry;
int scopeIndex;
if (TryScopeLookup(name, out scopeEntry, out scopeIndex))
{
//
// Check for invalid join left expression correlation.
//
if (scopeEntry.EntryKind == ScopeEntryKind.SourceVar &&
((SourceScopeEntry)scopeEntry).IsJoinClauseLeftExpr)
{
var message = Strings.InvalidJoinLeftCorrelation;
throw EntitySqlException.Create(errCtx, message, null);
}
//
// Set correlation flag.
//
SetScopeRegionCorrelationFlag(scopeIndex);
return(new ValueExpression(GetExpressionFromScopeEntry(scopeEntry, scopeIndex, name, errCtx)));
}
//
// Try resolving as a member of the default entity container.
//
var defaultEntityContainer = TypeResolver.Perspective.GetDefaultContainer();
ExpressionResolution defaultEntityContainerResolution;
if (defaultEntityContainer != null &&
TryResolveEntityContainerMemberAccess(defaultEntityContainer, name, out defaultEntityContainerResolution))
{
return(defaultEntityContainerResolution);
}
if (!_ignoreEntityContainerNameResolution)
{
//
// Try resolving as an entity container.
//
EntityContainer entityContainer;
if (TypeResolver.Perspective.TryGetEntityContainer(
name, _parserOptions.NameComparisonCaseInsensitive /*ignoreCase*/, out entityContainer))
{
return(new EntityContainerExpression(entityContainer));
}
}
//
// Otherwise, resolve as an unqualified name.
//
return(TypeResolver.ResolveUnqualifiedName(name, leftHandSideOfMemberAccess /* partOfQualifiedName */, errCtx));
}
private bool IsEscapedIdentifier(string symbol, out Token identifierToken)
{
if (symbol.Length > 1 &&
symbol[0] == '[')
{
if (symbol[symbol.Length - 1] == ']')
{
var name = symbol.Substring(1, symbol.Length - 2);
var id = new Identifier(name, true, _query, _iPos);
id.ErrCtx.ErrorContextInfo = EntityRes.CtxEscapedIdentifier;
identifierToken = NewToken(CqlParser.ESCAPED_IDENTIFIER, id);
return(true);
}
else
{
var errorMessage = Strings.InvalidEscapedIdentifier(symbol);
throw EntitySqlException.Create(_query, errorMessage, _iPos, null, false, null);
}
}
else
{
identifierToken = null;
return(false);
}
}
internal static void ReportAliasAlreadyUsedError(
string aliasName,
ErrorContext errCtx,
string contextMessage)
{
throw EntitySqlException.Create(errCtx, string.Format((IFormatProvider)CultureInfo.InvariantCulture, "{0} {1}", (object)Strings.AliasNameAlreadyUsed((object)aliasName), (object)contextMessage), (Exception)null);
}
internal ExpressionResolution ResolveSimpleName(
string name,
bool leftHandSideOfMemberAccess,
ErrorContext errCtx)
{
ScopeEntry scopeEntry;
int scopeIndex;
if (this.TryScopeLookup(name, out scopeEntry, out scopeIndex))
{
if (scopeEntry.EntryKind == ScopeEntryKind.SourceVar && ((SourceScopeEntry)scopeEntry).IsJoinClauseLeftExpr)
{
string joinLeftCorrelation = Strings.InvalidJoinLeftCorrelation;
throw EntitySqlException.Create(errCtx, joinLeftCorrelation, (Exception)null);
}
this.SetScopeRegionCorrelationFlag(scopeIndex);
return((ExpressionResolution) new ValueExpression(this.GetExpressionFromScopeEntry(scopeEntry, scopeIndex, name, errCtx)));
}
EntityContainer defaultContainer = this.TypeResolver.Perspective.GetDefaultContainer();
ExpressionResolution resolution;
if (defaultContainer != null && this.TryResolveEntityContainerMemberAccess(defaultContainer, name, out resolution))
{
return(resolution);
}
EntityContainer entityContainer;
if (!this._ignoreEntityContainerNameResolution && this.TypeResolver.Perspective.TryGetEntityContainer(name, this._parserOptions.NameComparisonCaseInsensitive, out entityContainer))
{
return((ExpressionResolution) new EntityContainerExpression(entityContainer));
}
return((ExpressionResolution)this.TypeResolver.ResolveUnqualifiedName(name, leftHandSideOfMemberAccess, errCtx));
}
/// <summary>
/// Performs conversion of numeric strings that have no type suffix hint.
/// </summary>
private static object DefaultNumericConversion(string numericString, ErrorContext errCtx)
{
if (-1
!= numericString.IndexOfAny(_floatTokens))
{
Double value;
if (!Double.TryParse(numericString, NumberStyles.Float, CultureInfo.InvariantCulture, out value))
{
var message = Strings.CannotConvertNumericLiteral(numericString, "double");
throw EntitySqlException.Create(errCtx, message, null);
}
return(value);
}
else
{
Int32 int32Value;
if (Int32.TryParse(numericString, NumberStyles.Integer, CultureInfo.InvariantCulture, out int32Value))
{
return(int32Value);
}
Int64 int64Value;
if (!Int64.TryParse(numericString, NumberStyles.Integer, CultureInfo.InvariantCulture, out int64Value))
{
var message = Strings.CannotConvertNumericLiteral(numericString, "long");
throw EntitySqlException.Create(errCtx, message, null);
}
return(int64Value);
}
}
internal void AssertException(Expression <Func <string> > msgExpr, EntitySqlException exc)
{
var memberExpr = (MemberExpression)msgExpr.Body;
var member = (PropertyInfo)memberExpr.Member;
var errorName = member.Name;
Assert.AreEqual(errorName, exc.ErrorName);
}
internal static void ReportIncompatibleCommonType(
ErrorContext errCtx,
TypeUsage leftType,
TypeUsage rightType)
{
CqlErrorHelper.ReportIncompatibleCommonType(errCtx, leftType, rightType, leftType, rightType);
throw EntitySqlException.Create(errCtx, Strings.ArgumentTypesAreIncompatible((object)leftType.Identity, (object)rightType.Identity), (Exception)null);
}
internal MetadataMember ResolveMetadataMemberAccess(MetadataMember qualifier, string name, ErrorContext errCtx)
{
var fullName = GetFullName(qualifier.Name, name);
if (qualifier.MetadataMemberClass
== MetadataMemberClass.Namespace)
{
//
// Try resolving as a type.
//
MetadataType type;
if (TryGetTypeFromMetadata(fullName, out type))
{
return(type);
}
//
// Try resolving as a function.
//
MetadataFunctionGroup function;
if (TryGetFunctionFromMetadata(qualifier.Name, name, out function))
{
return(function);
}
//
// Otherwise, resolve as a namespace.
//
return(new MetadataNamespace(fullName));
}
else if (qualifier.MetadataMemberClass
== MetadataMemberClass.Type)
{
var type = (MetadataType)qualifier;
if (TypeSemantics.IsEnumerationType(type.TypeUsage))
{
EnumMember member;
if (_perspective.TryGetEnumMember(
(EnumType)type.TypeUsage.EdmType, name, _parserOptions.NameComparisonCaseInsensitive /*ignoreCase*/, out member))
{
Debug.Assert(member != null, "member != null");
Debug.Assert(
_parserOptions.NameComparer.Equals(name, member.Name), "_parserOptions.NameComparer.Equals(name, member.Name)");
return(new MetadataEnumMember(fullName, type.TypeUsage, member));
}
else
{
var message = Strings.NotAMemberOfType(name, qualifier.Name);
throw EntitySqlException.Create(errCtx, message, null);
}
}
}
var message1 = Strings.InvalidMetadataMemberClassResolution(
qualifier.Name, qualifier.MetadataMemberClassName, MetadataNamespace.NamespaceClassName);
throw EntitySqlException.Create(errCtx, message1, null);
}
internal AliasedExpr(Node expr, Identifier alias)
{
if (string.IsNullOrEmpty(alias.Name))
{
throw EntitySqlException.Create(alias.ErrCtx, Strings.InvalidEmptyIdentifier, (Exception)null);
}
this._expr = expr;
this._alias = alias;
}
internal void AddNamespaceImport(MetadataNamespace @namespace, ErrorContext errCtx)
{
if (this._namespaces.Contains(@namespace))
{
string errorMessage = Strings.NamespaceAlreadyImported((object)@namespace.Name);
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
this._namespaces.Add(@namespace);
}
internal QueryParameter(string parameterName, string query, int inputPos)
: base(query, inputPos)
{
this._name = parameterName.Substring(1);
if (this._name.StartsWith("_", StringComparison.OrdinalIgnoreCase) || char.IsDigit(this._name, 0))
{
throw EntitySqlException.Create(this.ErrCtx, Strings.InvalidParameterFormat((object)this._name), (Exception)null);
}
}
private static Exception AmbiguousMetadataMemberName(
ErrorContext errCtx,
string name,
MetadataNamespace ns1,
MetadataNamespace ns2)
{
string errorMessage = Strings.AmbiguousMetadataMemberName((object)name, (object)ns1.Name, (object)ns2?.Name);
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
// <summary>
// Adds a non-aliased namespace import.
// </summary>
internal void AddNamespaceImport(MetadataNamespace @namespace, ErrorContext errCtx)
{
if (_namespaces.Contains(@namespace))
{
var message = Strings.NamespaceAlreadyImported(@namespace.Name);
throw EntitySqlException.Create(errCtx, message, null);
}
_namespaces.Add(@namespace);
}
// <summary>
// Adds an aliased namespace import.
// </summary>
internal void AddAliasedNamespaceImport(string alias, MetadataNamespace @namespace, ErrorContext errCtx)
{
if (_aliasedNamespaces.ContainsKey(alias))
{
var message = Strings.NamespaceAliasAlreadyUsed(alias);
throw EntitySqlException.Create(errCtx, message, null);
}
_aliasedNamespaces.Add(alias, @namespace);
}
/// <summary>
/// Converts boolean literal value.
/// </summary>
private static bool ConvertBooleanLiteralValue(ErrorContext errCtx, string booleanLiteralValue)
{
var result = false;
if (!Boolean.TryParse(booleanLiteralValue, out result))
{
var message = Strings.InvalidLiteralFormat("Boolean", booleanLiteralValue);
throw EntitySqlException.Create(errCtx, message, null);
}
return(result);
}
private static bool ConvertBooleanLiteralValue(ErrorContext errCtx, string booleanLiteralValue)
{
bool result = false;
if (!bool.TryParse(booleanLiteralValue, out result))
{
string errorMessage = Strings.InvalidLiteralFormat((object)"Boolean", (object)booleanLiteralValue);
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
return(result);
}
internal void AddAliasedNamespaceImport(
string alias,
MetadataNamespace @namespace,
ErrorContext errCtx)
{
if (this._aliasedNamespaces.ContainsKey(alias))
{
string errorMessage = Strings.NamespaceAliasAlreadyUsed((object)alias);
throw EntitySqlException.Create(errCtx, errorMessage, (Exception)null);
}
this._aliasedNamespaces.Add(alias, @namespace);
}
private static System.Data.Entity.Core.Common.EntitySql.AST.Node Parse(
string commandText,
ParserOptions parserOptions)
{
Check.NotEmpty(commandText, nameof(commandText));
System.Data.Entity.Core.Common.EntitySql.AST.Node node = new CqlParser(parserOptions, true).Parse(commandText);
if (node == null)
{
throw EntitySqlException.Create(commandText, Strings.InvalidEmptyQuery, 0, (string)null, false, (Exception)null);
}
return(node);
}
internal NamespaceImport(BuiltInExpr bltInExpr)
{
this._namespaceAlias = (Identifier)null;
Identifier identifier = bltInExpr.Arg1 as Identifier;
if (identifier == null)
{
throw EntitySqlException.Create(bltInExpr.Arg1.ErrCtx, Strings.InvalidNamespaceAlias, (Exception)null);
}
this._namespaceAlias = identifier;
this._namespaceName = bltInExpr.Arg2;
}
// <summary>
// Maps operator to respective token
// </summary>
// <param name="oper"> operator lexeme </param>
// <returns> Token </returns>
internal Token MapOperator(string oper)
{
if (InternalOperatorDictionary.ContainsKey(oper))
{
return(NewToken(InternalOperatorDictionary[oper], new TerminalToken(oper, _iPos)));
}
else
{
var errorMessage = Strings.InvalidOperatorSymbol;
throw EntitySqlException.Create(_query, errorMessage, _iPos, null, false, null);
}
}
// <summary>
// Reports incompatible type error
// </summary>
internal static void ReportIncompatibleCommonType(ErrorContext errCtx, TypeUsage leftType, TypeUsage rightType)
{
//
// 'navigate' through the type structure in order to find where the incompability is
//
ReportIncompatibleCommonType(errCtx, leftType, rightType, leftType, rightType);
//
// if we hit this point, throw the generic incompatible type error message
//
throw EntitySqlException.Create(errCtx, Strings.ArgumentTypesAreIncompatible(leftType.Identity, rightType.Identity), null);
}
private static DateTimeOffset ConvertDateTimeOffsetLiteralValue(ErrorContext errCtx, string datetimeLiteralValue)
{
var datetimeParts = datetimeLiteralValue.Split(_datetimeOffsetSeparators, StringSplitOptions.RemoveEmptyEntries);
Debug.Assert(datetimeParts.Length >= 7, "datetime literal value must have at least 7 parts");
int year;
int month;
int day;
GetDateParts(datetimeLiteralValue, datetimeParts, out year, out month, out day);
int hour;
int minute;
int second;
int ticks;
//Copy the time parts into a different array since the last two parts will be handled in this method.
var timeParts = new String[datetimeParts.Length - 2];
Array.Copy(datetimeParts, timeParts, datetimeParts.Length - 2);
GetTimeParts(datetimeLiteralValue, timeParts, 3, out hour, out minute, out second, out ticks);
Debug.Assert(year >= 1 && year <= 9999);
Debug.Assert(month >= 1 && month <= 12);
Debug.Assert(day >= 1 && day <= 31);
Debug.Assert(hour >= 0 && hour <= 24);
Debug.Assert(minute >= 0 && minute <= 59);
Debug.Assert(second >= 0 && second <= 59);
Debug.Assert(ticks >= 0 && ticks <= 9999999);
var offsetHours = Int32.Parse(datetimeParts[datetimeParts.Length - 2], NumberStyles.Integer, CultureInfo.InvariantCulture);
var offsetMinutes = Int32.Parse(datetimeParts[datetimeParts.Length - 1], NumberStyles.Integer, CultureInfo.InvariantCulture);
var offsetTimeSpan = new TimeSpan(offsetHours, offsetMinutes, 0);
//If DateTimeOffset had a negative offset, we should negate the timespan
if (datetimeLiteralValue.IndexOf('+')
== -1)
{
offsetTimeSpan = offsetTimeSpan.Negate();
}
var dateTime = new DateTime(year, month, day, hour, minute, second, 0);
dateTime = dateTime.AddTicks(ticks);
try
{
return(new DateTimeOffset(dateTime, offsetTimeSpan));
}
catch (ArgumentOutOfRangeException e)
{
var message = Strings.InvalidDateTimeOffsetLiteral(datetimeLiteralValue);
throw EntitySqlException.Create(errCtx, message, e);
}
}
/// <summary>
/// Resolve entity set or function import <paramref name="name" /> in the <paramref name="entityContainer" />
/// </summary>
internal ExpressionResolution ResolveEntityContainerMemberAccess(EntityContainer entityContainer, string name, ErrorContext errCtx)
{
ExpressionResolution resolution;
if (TryResolveEntityContainerMemberAccess(entityContainer, name, out resolution))
{
return(resolution);
}
else
{
var message = Strings.MemberDoesNotBelongToEntityContainer(name, entityContainer.Name);
throw EntitySqlException.Create(errCtx, message, null);
}
}
private void yyerror(string s)
{
if (s.Equals(_internalYaccSyntaxErrorMessage, StringComparison.Ordinal))
{
var errorPosition = _lexer.IPos;
string syntaxContextInfo = null;
var term = _lexer.YYText;
if (!String.IsNullOrEmpty(term))
{
syntaxContextInfo = Strings.LocalizedTerm;
ErrorContext errCtx = null;
var astNode = yylval as Node;
if (null != astNode &&
(null != astNode.ErrCtx) &&
(!String.IsNullOrEmpty(astNode.ErrCtx.ErrorContextInfo)))
{
errCtx = astNode.ErrCtx;
errorPosition = Math.Min(errorPosition, errorPosition - term.Length);
}
if ((yylval is CqlLexer.TerminalToken) &&
CqlLexer.IsReservedKeyword(term) &&
!(astNode is Identifier))
{
syntaxContextInfo = Strings.LocalizedKeyword;
term = term.ToUpperInvariant();
errorPosition = Math.Min(errorPosition, errorPosition - term.Length);
}
else if (null != errCtx)
{
syntaxContextInfo = EntityRes.GetString(errCtx.ErrorContextInfo);
}
syntaxContextInfo = String.Format(CultureInfo.CurrentCulture, "{0} '{1}'", syntaxContextInfo, term);
}
var errorMessage = Strings.GenericSyntaxError;
throw EntitySqlException.Create(
_query,
errorMessage,
errorPosition,
syntaxContextInfo,
false,
null);
}
var errorPosition1 = _lexer.IPos;
throw EntitySqlException.Create(_query, s, errorPosition1, null, false, null);
}
// <summary>
// Constructs an aliased expression node.
// </summary>
internal AliasedExpr(Node expr, Identifier alias)
{
DebugCheck.NotNull(expr);
DebugCheck.NotNull(alias);
if (String.IsNullOrEmpty(alias.Name))
{
var errCtx = alias.ErrCtx;
var message = Strings.InvalidEmptyIdentifier;
throw EntitySqlException.Create(errCtx, message, null);
}
_expr = expr;
_alias = alias;
}
