internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { SqlExpression hasValue = this.VisitExpression(sov.HasValue); SqlExpression value = this.VisitExpression(sov.Value); return(new SqlOptionalValue(hasValue, value)); }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { bool saveCanJoin = this.canJoin; this.canJoin = false; try { return(base.VisitOptionalValue(sov)); } finally { this.canJoin = saveCanJoin; } }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { if (this.isDebugMode) { sb.Append("opt("); this.Visit(sov.HasValue); sb.Append(", "); this.Visit(sov.Value); sb.Append(")"); return sov; } else { throw Error.InvalidFormatNode("OptionalValue"); } }
private void FlattenGroupByExpression(List <SqlExpression> exprs, SqlExpression expr) { SqlNew sn = expr as SqlNew; if (sn != null) { foreach (SqlMemberAssign ma in sn.Members) { this.FlattenGroupByExpression(exprs, ma.Expression); } foreach (SqlExpression arg in sn.Args) { this.FlattenGroupByExpression(exprs, arg); } } else if (expr.NodeType == SqlNodeType.TypeCase) { SqlTypeCase tc = (SqlTypeCase)expr; this.FlattenGroupByExpression(exprs, tc.Discriminator); foreach (SqlTypeCaseWhen when in tc.Whens) { this.FlattenGroupByExpression(exprs, when.TypeBinding); } } else if (expr.NodeType == SqlNodeType.Link) { SqlLink link = (SqlLink)expr; if (link.Expansion != null) { this.FlattenGroupByExpression(exprs, link.Expansion); } else { foreach (SqlExpression key in link.KeyExpressions) { this.FlattenGroupByExpression(exprs, key); } } } else if (expr.NodeType == SqlNodeType.OptionalValue) { SqlOptionalValue sop = (SqlOptionalValue)expr; this.FlattenGroupByExpression(exprs, sop.HasValue); this.FlattenGroupByExpression(exprs, sop.Value); } else if (expr.NodeType == SqlNodeType.OuterJoinedValue) { this.FlattenGroupByExpression(exprs, ((SqlUnary)expr).Operand); } else if (expr.NodeType == SqlNodeType.DiscriminatedType) { SqlDiscriminatedType dt = (SqlDiscriminatedType)expr; this.FlattenGroupByExpression(exprs, dt.Discriminator); } else { // this expression should have been 'pushed-down' in SqlBinder, so we // should only find column-references & expr-sets unless the expression could not // be columnized (in which case it was a bad group-by expression.) if (expr.NodeType != SqlNodeType.ColumnRef && expr.NodeType != SqlNodeType.ExprSet) { if (!expr.SqlType.CanBeColumn) { throw Error.InvalidGroupByExpressionType(expr.SqlType.ToQueryString()); } throw Error.InvalidGroupByExpression(); } exprs.Add(expr); } }
internal virtual SqlExpression VisitOptionalValue(SqlOptionalValue sov) { sov.HasValue = this.VisitExpression(sov.HasValue); sov.Value = this.VisitExpression(sov.Value); return sov; }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { bool saveCanJoin = this.canJoin; this.canJoin = false; try { return base.VisitOptionalValue(sov); } finally { this.canJoin = saveCanJoin; } }
internal static bool AreEqual(SqlNode node1, SqlNode node2) { if (node1 == node2) { return(true); } if (node1 == null || node2 == null) { return(false); } if (node1.NodeType == SqlNodeType.SimpleCase) { node1 = UnwrapTrivialCaseExpression((SqlSimpleCase)node1); } if (node2.NodeType == SqlNodeType.SimpleCase) { node2 = UnwrapTrivialCaseExpression((SqlSimpleCase)node2); } if (node1.NodeType != node2.NodeType) { // allow expression sets to compare against single expressions if (node1.NodeType == SqlNodeType.ExprSet) { SqlExprSet eset = (SqlExprSet)node1; for (int i = 0, n = eset.Expressions.Count; i < n; i++) { if (AreEqual(eset.Expressions[i], node2)) { return(true); } } } else if (node2.NodeType == SqlNodeType.ExprSet) { SqlExprSet eset = (SqlExprSet)node2; for (int i = 0, n = eset.Expressions.Count; i < n; i++) { if (AreEqual(node1, eset.Expressions[i])) { return(true); } } } return(false); } if (node1.Equals(node2)) { return(true); } switch (node1.NodeType) { case SqlNodeType.Not: case SqlNodeType.Not2V: case SqlNodeType.Negate: case SqlNodeType.BitNot: case SqlNodeType.IsNull: case SqlNodeType.IsNotNull: case SqlNodeType.Count: case SqlNodeType.Max: case SqlNodeType.Min: case SqlNodeType.Sum: case SqlNodeType.Avg: case SqlNodeType.Stddev: case SqlNodeType.ValueOf: case SqlNodeType.OuterJoinedValue: case SqlNodeType.ClrLength: return(AreEqual(((SqlUnary)node1).Operand, ((SqlUnary)node2).Operand)); case SqlNodeType.Add: case SqlNodeType.Sub: case SqlNodeType.Mul: case SqlNodeType.Div: case SqlNodeType.Mod: case SqlNodeType.BitAnd: case SqlNodeType.BitOr: case SqlNodeType.BitXor: case SqlNodeType.And: case SqlNodeType.Or: case SqlNodeType.GE: case SqlNodeType.GT: case SqlNodeType.LE: case SqlNodeType.LT: case SqlNodeType.EQ: case SqlNodeType.NE: case SqlNodeType.EQ2V: case SqlNodeType.NE2V: case SqlNodeType.Concat: SqlBinary firstNode = (SqlBinary)node1; SqlBinary secondNode = (SqlBinary)node2; return(AreEqual(firstNode.Left, secondNode.Left) && AreEqual(firstNode.Right, secondNode.Right)); case SqlNodeType.Convert: case SqlNodeType.Treat: { SqlUnary sun1 = (SqlUnary)node1; SqlUnary sun2 = (SqlUnary)node2; return(sun1.ClrType == sun2.ClrType && sun1.SqlType == sun2.SqlType && AreEqual(sun1.Operand, sun2.Operand)); } case SqlNodeType.Between: { SqlBetween b1 = (SqlBetween)node1; SqlBetween b2 = (SqlBetween)node1; return(AreEqual(b1.Expression, b2.Expression) && AreEqual(b1.Start, b2.Start) && AreEqual(b1.End, b2.End)); } case SqlNodeType.Parameter: return(node1 == node2); case SqlNodeType.Alias: return(AreEqual(((SqlAlias)node1).Node, ((SqlAlias)node2).Node)); case SqlNodeType.AliasRef: return(AreEqual(((SqlAliasRef)node1).Alias, ((SqlAliasRef)node2).Alias)); case SqlNodeType.Column: SqlColumn col1 = (SqlColumn)node1; SqlColumn col2 = (SqlColumn)node2; return(col1 == col2 || (col1.Expression != null && col2.Expression != null && AreEqual(col1.Expression, col2.Expression))); case SqlNodeType.Table: return(((SqlTable)node1).MetaTable == ((SqlTable)node2).MetaTable); case SqlNodeType.Member: return((((SqlMember)node1).Member == ((SqlMember)node2).Member) && AreEqual(((SqlMember)node1).Expression, ((SqlMember)node2).Expression)); case SqlNodeType.ColumnRef: SqlColumnRef cref1 = (SqlColumnRef)node1; SqlColumnRef cref2 = (SqlColumnRef)node2; return(GetBaseColumn(cref1) == GetBaseColumn(cref2)); case SqlNodeType.Value: return(Object.Equals(((SqlValue)node1).Value, ((SqlValue)node2).Value)); case SqlNodeType.TypeCase: { SqlTypeCase c1 = (SqlTypeCase)node1; SqlTypeCase c2 = (SqlTypeCase)node2; if (!AreEqual(c1.Discriminator, c2.Discriminator)) { return(false); } if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, c = c1.Whens.Count; i < c; ++i) { if (!AreEqual(c1.Whens[i].Match, c2.Whens[i].Match)) { return(false); } if (!AreEqual(c1.Whens[i].TypeBinding, c2.Whens[i].TypeBinding)) { return(false); } } return(true); } case SqlNodeType.SearchedCase: { SqlSearchedCase c1 = (SqlSearchedCase)node1; SqlSearchedCase c2 = (SqlSearchedCase)node2; if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, n = c1.Whens.Count; i < n; i++) { if (!AreEqual(c1.Whens[i].Match, c2.Whens[i].Match) || !AreEqual(c1.Whens[i].Value, c2.Whens[i].Value)) { return(false); } } return(AreEqual(c1.Else, c2.Else)); } case SqlNodeType.ClientCase: { SqlClientCase c1 = (SqlClientCase)node1; SqlClientCase c2 = (SqlClientCase)node2; if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, n = c1.Whens.Count; i < n; i++) { if (!AreEqual(c1.Whens[i].Match, c2.Whens[i].Match) || !AreEqual(c1.Whens[i].Value, c2.Whens[i].Value)) { return(false); } } return(true); } case SqlNodeType.DiscriminatedType: { SqlDiscriminatedType dt1 = (SqlDiscriminatedType)node1; SqlDiscriminatedType dt2 = (SqlDiscriminatedType)node2; return(AreEqual(dt1.Discriminator, dt2.Discriminator)); } case SqlNodeType.SimpleCase: { SqlSimpleCase c1 = (SqlSimpleCase)node1; SqlSimpleCase c2 = (SqlSimpleCase)node2; if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, n = c1.Whens.Count; i < n; i++) { if (!AreEqual(c1.Whens[i].Match, c2.Whens[i].Match) || !AreEqual(c1.Whens[i].Value, c2.Whens[i].Value)) { return(false); } } return(true); } case SqlNodeType.Like: { SqlLike like1 = (SqlLike)node1; SqlLike like2 = (SqlLike)node2; return(AreEqual(like1.Expression, like2.Expression) && AreEqual(like1.Pattern, like2.Pattern) && AreEqual(like1.Escape, like2.Escape)); } case SqlNodeType.Variable: { SqlVariable v1 = (SqlVariable)node1; SqlVariable v2 = (SqlVariable)node2; return(v1.Name == v2.Name); } case SqlNodeType.FunctionCall: { SqlFunctionCall f1 = (SqlFunctionCall)node1; SqlFunctionCall f2 = (SqlFunctionCall)node2; if (f1.Name != f2.Name) { return(false); } if (f1.Arguments.Count != f2.Arguments.Count) { return(false); } for (int i = 0, n = f1.Arguments.Count; i < n; i++) { if (!AreEqual(f1.Arguments[i], f2.Arguments[i])) { return(false); } } return(true); } case SqlNodeType.Link: { SqlLink l1 = (SqlLink)node1; SqlLink l2 = (SqlLink)node2; if (!MetaPosition.AreSameMember(l1.Member.Member, l2.Member.Member)) { return(false); } if (!AreEqual(l1.Expansion, l2.Expansion)) { return(false); } if (l1.KeyExpressions.Count != l2.KeyExpressions.Count) { return(false); } for (int i = 0, c = l1.KeyExpressions.Count; i < c; ++i) { if (!AreEqual(l1.KeyExpressions[i], l2.KeyExpressions[i])) { return(false); } } return(true); } case SqlNodeType.ExprSet: SqlExprSet es1 = (SqlExprSet)node1; SqlExprSet es2 = (SqlExprSet)node2; if (es1.Expressions.Count != es2.Expressions.Count) { return(false); } for (int i = 0, n = es1.Expressions.Count; i < n; i++) { if (!AreEqual(es1.Expressions[i], es2.Expressions[i])) { return(false); } } return(true); case SqlNodeType.OptionalValue: SqlOptionalValue ov1 = (SqlOptionalValue)node1; SqlOptionalValue ov2 = (SqlOptionalValue)node2; return(AreEqual(ov1.Value, ov2.Value)); case SqlNodeType.Row: case SqlNodeType.UserQuery: case SqlNodeType.StoredProcedureCall: case SqlNodeType.UserRow: case SqlNodeType.UserColumn: case SqlNodeType.Multiset: case SqlNodeType.ScalarSubSelect: case SqlNodeType.Element: case SqlNodeType.Exists: case SqlNodeType.Join: case SqlNodeType.Select: case SqlNodeType.New: case SqlNodeType.ClientQuery: case SqlNodeType.ClientArray: case SqlNodeType.Insert: case SqlNodeType.Update: case SqlNodeType.Delete: case SqlNodeType.MemberAssign: case SqlNodeType.Assign: case SqlNodeType.Block: case SqlNodeType.Union: case SqlNodeType.DoNotVisit: case SqlNodeType.MethodCall: case SqlNodeType.Nop: default: return(false); } }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { SqlExpression hasValue = this.VisitExpression(sov.HasValue); SqlExpression value = this.VisitExpression(sov.Value); return new SqlOptionalValue(hasValue, value); }
private SqlSelect VisitDefaultIfEmpty(Expression sequence) { SqlSelect select = this.VisitSequence(sequence); SqlAlias alias = new SqlAlias(select); SqlAliasRef aliasRef = new SqlAliasRef(alias); SqlExpression opt = new SqlOptionalValue( new SqlColumn( "test", sql.Unary(SqlNodeType.OuterJoinedValue, sql.Value(typeof(int?), this.typeProvider.From(typeof(int)), 1, false, this.dominatingExpression) ) ), sql.Unary(SqlNodeType.OuterJoinedValue, aliasRef) ); SqlSelect optSelect = new SqlSelect(opt, alias, this.dominatingExpression); alias = new SqlAlias(optSelect); aliasRef = new SqlAliasRef(alias); SqlExpression litNull = sql.TypedLiteralNull(typeof(string), this.dominatingExpression); SqlSelect selNull = new SqlSelect(litNull, null, this.dominatingExpression); SqlAlias aliasNull = new SqlAlias(selNull); SqlJoin join = new SqlJoin(SqlJoinType.OuterApply, aliasNull, alias, null, this.dominatingExpression); return new SqlSelect(aliasRef, join, this.dominatingExpression); }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { sov.HasValue = this.VisitNamedExpression(sov.HasValue, "test"); sov.Value = this.VisitExpression(sov.Value); return sov; }
private SqlExpression ExpandTogether(List <SqlExpression> exprs) { switch (exprs[0].NodeType) { case SqlNodeType.MethodCall: { SqlMethodCall[] mcs = new SqlMethodCall[exprs.Count]; for (int i = 0; i < mcs.Length; ++i) { mcs[i] = (SqlMethodCall)exprs[i]; } List <SqlExpression> expandedArgs = new List <SqlExpression>(); for (int i = 0; i < mcs[0].Arguments.Count; ++i) { List <SqlExpression> args = new List <SqlExpression>(); for (int j = 0; j < mcs.Length; ++j) { args.Add(mcs[j].Arguments[i]); } SqlExpression expanded = this.ExpandTogether(args); expandedArgs.Add(expanded); } return(factory.MethodCall(mcs[0].Method, mcs[0].Object, expandedArgs.ToArray(), mcs[0].SourceExpression)); } case SqlNodeType.ClientCase: { // Are they all the same? SqlClientCase[] scs = new SqlClientCase[exprs.Count]; scs[0] = (SqlClientCase)exprs[0]; for (int i = 1; i < scs.Length; ++i) { scs[i] = (SqlClientCase)exprs[i]; } // Expand expressions together. List <SqlExpression> expressions = new List <SqlExpression>(); for (int i = 0; i < scs.Length; ++i) { expressions.Add(scs[i].Expression); } SqlExpression expression = this.ExpandTogether(expressions); // Expand individual expressions together. List <SqlClientWhen> whens = new List <SqlClientWhen>(); for (int i = 0; i < scs[0].Whens.Count; ++i) { List <SqlExpression> scos = new List <SqlExpression>(); for (int j = 0; j < scs.Length; ++j) { SqlClientWhen when = scs[j].Whens[i]; scos.Add(when.Value); } whens.Add(new SqlClientWhen(scs[0].Whens[i].Match, this.ExpandTogether(scos))); } return(new SqlClientCase(scs[0].ClrType, expression, whens, scs[0].SourceExpression)); } case SqlNodeType.TypeCase: { // Are they all the same? SqlTypeCase[] tcs = new SqlTypeCase[exprs.Count]; tcs[0] = (SqlTypeCase)exprs[0]; for (int i = 1; i < tcs.Length; ++i) { tcs[i] = (SqlTypeCase)exprs[i]; } // Expand discriminators together. List <SqlExpression> discriminators = new List <SqlExpression>(); for (int i = 0; i < tcs.Length; ++i) { discriminators.Add(tcs[i].Discriminator); } SqlExpression discriminator = this.ExpandTogether(discriminators); // Write expanded discriminators back in. for (int i = 0; i < tcs.Length; ++i) { tcs[i].Discriminator = discriminators[i]; } // Expand individual type bindings together. List <SqlTypeCaseWhen> whens = new List <SqlTypeCaseWhen>(); for (int i = 0; i < tcs[0].Whens.Count; ++i) { List <SqlExpression> scos = new List <SqlExpression>(); for (int j = 0; j < tcs.Length; ++j) { SqlTypeCaseWhen when = tcs[j].Whens[i]; scos.Add(when.TypeBinding); } SqlExpression expanded = this.ExpandTogether(scos); whens.Add(new SqlTypeCaseWhen(tcs[0].Whens[i].Match, expanded)); } return(factory.TypeCase(tcs[0].ClrType, tcs[0].RowType, discriminator, whens, tcs[0].SourceExpression)); } case SqlNodeType.New: { // first verify all are similar client objects... SqlNew[] cobs = new SqlNew[exprs.Count]; cobs[0] = (SqlNew)exprs[0]; for (int i = 1, n = exprs.Count; i < n; i++) { if (exprs[i] == null || exprs[i].NodeType != SqlNodeType.New) { throw Error.UnionIncompatibleConstruction(); } cobs[i] = (SqlNew)exprs[1]; if (cobs[i].Members.Count != cobs[0].Members.Count) { throw Error.UnionDifferentMembers(); } for (int m = 0, mn = cobs[0].Members.Count; m < mn; m++) { if (cobs[i].Members[m].Member != cobs[0].Members[m].Member) { throw Error.UnionDifferentMemberOrder(); } } } SqlMemberAssign[] bindings = new SqlMemberAssign[cobs[0].Members.Count]; for (int m = 0, mn = bindings.Length; m < mn; m++) { List <SqlExpression> mexprs = new List <SqlExpression>(); for (int i = 0, n = exprs.Count; i < n; i++) { mexprs.Add(cobs[i].Members[m].Expression); } bindings[m] = new SqlMemberAssign(cobs[0].Members[m].Member, this.ExpandTogether(mexprs)); for (int i = 0, n = exprs.Count; i < n; i++) { cobs[i].Members[m].Expression = mexprs[i]; } } SqlExpression[] arguments = new SqlExpression[cobs[0].Args.Count]; for (int m = 0, mn = arguments.Length; m < mn; ++m) { List <SqlExpression> mexprs = new List <SqlExpression>(); for (int i = 0, n = exprs.Count; i < n; i++) { mexprs.Add(cobs[i].Args[m]); } arguments[m] = ExpandTogether(mexprs); } return(factory.New(cobs[0].MetaType, cobs[0].Constructor, arguments, cobs[0].ArgMembers, bindings, exprs[0].SourceExpression)); } case SqlNodeType.Link: { SqlLink[] links = new SqlLink[exprs.Count]; links[0] = (SqlLink)exprs[0]; for (int i = 1, n = exprs.Count; i < n; i++) { if (exprs[i] == null || exprs[i].NodeType != SqlNodeType.Link) { throw Error.UnionIncompatibleConstruction(); } links[i] = (SqlLink)exprs[i]; if (links[i].KeyExpressions.Count != links[0].KeyExpressions.Count || links[i].Member != links[0].Member || (links[i].Expansion != null) != (links[0].Expansion != null)) { throw Error.UnionIncompatibleConstruction(); } } SqlExpression[] kexprs = new SqlExpression[links[0].KeyExpressions.Count]; List <SqlExpression> lexprs = new List <SqlExpression>(); for (int k = 0, nk = links[0].KeyExpressions.Count; k < nk; k++) { lexprs.Clear(); for (int i = 0, n = exprs.Count; i < n; i++) { lexprs.Add(links[i].KeyExpressions[k]); } kexprs[k] = this.ExpandTogether(lexprs); for (int i = 0, n = exprs.Count; i < n; i++) { links[i].KeyExpressions[k] = lexprs[i]; } } SqlExpression expansion = null; if (links[0].Expansion != null) { lexprs.Clear(); for (int i = 0, n = exprs.Count; i < n; i++) { lexprs.Add(links[i].Expansion); } expansion = this.ExpandTogether(lexprs); for (int i = 0, n = exprs.Count; i < n; i++) { links[i].Expansion = lexprs[i]; } } return(new SqlLink(links[0].Id, links[0].RowType, links[0].ClrType, links[0].SqlType, links[0].Expression, links[0].Member, kexprs, expansion, links[0].SourceExpression)); } case SqlNodeType.Value: { /* * ExprSet of all literals of the same value reduce to just a single literal. */ SqlValue val0 = (SqlValue)exprs[0]; for (int i = 1; i < exprs.Count; ++i) { SqlValue val = (SqlValue)exprs[i]; if (!Equals(val.Value, val0.Value)) { return(this.ExpandIntoExprSet(exprs)); } } return(val0); } case SqlNodeType.OptionalValue: { if (exprs[0].SqlType.CanBeColumn) { goto default; } List <SqlExpression> hvals = new List <SqlExpression>(exprs.Count); List <SqlExpression> vals = new List <SqlExpression>(exprs.Count); for (int i = 0, n = exprs.Count; i < n; i++) { if (exprs[i] == null || exprs[i].NodeType != SqlNodeType.OptionalValue) { throw Error.UnionIncompatibleConstruction(); } SqlOptionalValue sov = (SqlOptionalValue)exprs[i]; hvals.Add(sov.HasValue); vals.Add(sov.Value); } return(new SqlOptionalValue(this.ExpandTogether(hvals), this.ExpandTogether(vals))); } case SqlNodeType.OuterJoinedValue: { if (exprs[0].SqlType.CanBeColumn) { goto default; } List <SqlExpression> values = new List <SqlExpression>(exprs.Count); for (int i = 0, n = exprs.Count; i < n; i++) { if (exprs[i] == null || exprs[i].NodeType != SqlNodeType.OuterJoinedValue) { throw Error.UnionIncompatibleConstruction(); } SqlUnary su = (SqlUnary)exprs[i]; values.Add(su.Operand); } return(factory.Unary(SqlNodeType.OuterJoinedValue, this.ExpandTogether(values))); } case SqlNodeType.DiscriminatedType: { SqlDiscriminatedType sdt0 = (SqlDiscriminatedType)exprs[0]; List <SqlExpression> foos = new List <SqlExpression>(exprs.Count); foos.Add(sdt0.Discriminator); for (int i = 1, n = exprs.Count; i < n; i++) { SqlDiscriminatedType sdtN = (SqlDiscriminatedType)exprs[i]; if (sdtN.TargetType != sdt0.TargetType) { throw Error.UnionIncompatibleConstruction(); } foos.Add(sdtN.Discriminator); } return(factory.DiscriminatedType(this.ExpandTogether(foos), ((SqlDiscriminatedType)exprs[0]).TargetType)); } case SqlNodeType.ClientQuery: case SqlNodeType.Multiset: case SqlNodeType.Element: case SqlNodeType.Grouping: throw Error.UnionWithHierarchy(); default: return(this.ExpandIntoExprSet(exprs)); } }
internal static bool AreEqual(SqlNode node1, SqlNode node2) { if (node1 == node2) { return(true); } if ((node1 != null) && (node2 != null)) { if (node1.NodeType == SqlNodeType.SimpleCase) { node1 = UnwrapTrivialCaseExpression((SqlSimpleCase)node1); } if (node2.NodeType == SqlNodeType.SimpleCase) { node2 = UnwrapTrivialCaseExpression((SqlSimpleCase)node2); } if (node1.NodeType != node2.NodeType) { if (node1.NodeType == SqlNodeType.ExprSet) { SqlExprSet set = (SqlExprSet)node1; int num = 0; int count = set.Expressions.Count; while (num < count) { if (AreEqual(set.Expressions[num], node2)) { return(true); } num++; } } else if (node2.NodeType == SqlNodeType.ExprSet) { SqlExprSet set2 = (SqlExprSet)node2; int num3 = 0; int num4 = set2.Expressions.Count; while (num3 < num4) { if (AreEqual(node1, set2.Expressions[num3])) { return(true); } num3++; } } return(false); } if (node1.Equals(node2)) { return(true); } switch (node1.NodeType) { case SqlNodeType.Add: case SqlNodeType.And: case SqlNodeType.BitAnd: case SqlNodeType.BitOr: case SqlNodeType.BitXor: case SqlNodeType.Concat: case SqlNodeType.Div: case SqlNodeType.EQ: case SqlNodeType.EQ2V: case SqlNodeType.LE: case SqlNodeType.LT: case SqlNodeType.GE: case SqlNodeType.GT: case SqlNodeType.Mod: case SqlNodeType.Mul: case SqlNodeType.NE: case SqlNodeType.NE2V: case SqlNodeType.Or: case SqlNodeType.Sub: { SqlBinary binary = (SqlBinary)node1; SqlBinary binary2 = (SqlBinary)node2; if (!AreEqual(binary.Left, binary2.Left)) { return(false); } return(AreEqual(binary.Right, binary2.Right)); } case SqlNodeType.Alias: return(AreEqual(((SqlAlias)node1).Node, ((SqlAlias)node2).Node)); case SqlNodeType.AliasRef: return(AreEqual(((SqlAliasRef)node1).Alias, ((SqlAliasRef)node2).Alias)); case SqlNodeType.Avg: case SqlNodeType.BitNot: case SqlNodeType.ClrLength: case SqlNodeType.Count: case SqlNodeType.Covar: case SqlNodeType.IsNotNull: case SqlNodeType.IsNull: case SqlNodeType.Max: case SqlNodeType.Min: case SqlNodeType.Negate: case SqlNodeType.Not: case SqlNodeType.Not2V: case SqlNodeType.OuterJoinedValue: case SqlNodeType.Stddev: case SqlNodeType.Sum: case SqlNodeType.ValueOf: return(AreEqual(((SqlUnary)node1).Operand, ((SqlUnary)node2).Operand)); case SqlNodeType.Between: { SqlBetween between = (SqlBetween)node1; SqlBetween between2 = (SqlBetween)node1; if (!AreEqual(between.Expression, between2.Expression) || !AreEqual(between.Start, between2.Start)) { return(false); } return(AreEqual(between.End, between2.End)); } case SqlNodeType.Cast: case SqlNodeType.Convert: case SqlNodeType.Treat: { SqlUnary unary = (SqlUnary)node1; SqlUnary unary2 = (SqlUnary)node2; if ((unary.ClrType != unary2.ClrType) || !(unary.SqlType == unary2.SqlType)) { return(false); } return(AreEqual(unary.Operand, unary2.Operand)); } case SqlNodeType.ClientCase: { SqlClientCase case5 = (SqlClientCase)node1; SqlClientCase case6 = (SqlClientCase)node2; if (case5.Whens.Count == case6.Whens.Count) { int num9 = 0; int num10 = case5.Whens.Count; while (num9 < num10) { if (!AreEqual(case5.Whens[num9].Match, case6.Whens[num9].Match) || !AreEqual(case5.Whens[num9].Value, case6.Whens[num9].Value)) { return(false); } num9++; } return(true); } return(false); } case SqlNodeType.Column: { SqlColumn column = (SqlColumn)node1; SqlColumn column2 = (SqlColumn)node2; return((column == column2) || (((column.Expression != null) && (column2.Expression != null)) && AreEqual(column.Expression, column2.Expression))); } case SqlNodeType.ColumnRef: { SqlColumnRef cref = (SqlColumnRef)node1; SqlColumnRef ref3 = (SqlColumnRef)node2; return(GetBaseColumn(cref) == GetBaseColumn(ref3)); } case SqlNodeType.DiscriminatedType: { SqlDiscriminatedType type = (SqlDiscriminatedType)node1; SqlDiscriminatedType type2 = (SqlDiscriminatedType)node2; return(AreEqual(type.Discriminator, type2.Discriminator)); } case SqlNodeType.ExprSet: { SqlExprSet set3 = (SqlExprSet)node1; SqlExprSet set4 = (SqlExprSet)node2; if (set3.Expressions.Count == set4.Expressions.Count) { int num17 = 0; int num18 = set3.Expressions.Count; while (num17 < num18) { if (!AreEqual(set3.Expressions[num17], set4.Expressions[num17])) { return(false); } num17++; } return(true); } return(false); } case SqlNodeType.FunctionCall: { SqlFunctionCall call = (SqlFunctionCall)node1; SqlFunctionCall call2 = (SqlFunctionCall)node2; if (!(call.Name != call2.Name)) { if (call.Arguments.Count != call2.Arguments.Count) { return(false); } int num13 = 0; int num14 = call.Arguments.Count; while (num13 < num14) { if (!AreEqual(call.Arguments[num13], call2.Arguments[num13])) { return(false); } num13++; } return(true); } return(false); } case SqlNodeType.Link: { SqlLink link = (SqlLink)node1; SqlLink link2 = (SqlLink)node2; if (MetaPosition.AreSameMember(link.Member.Member, link2.Member.Member)) { if (!AreEqual(link.Expansion, link2.Expansion)) { return(false); } if (link.KeyExpressions.Count != link2.KeyExpressions.Count) { return(false); } int num15 = 0; int num16 = link.KeyExpressions.Count; while (num15 < num16) { if (!AreEqual(link.KeyExpressions[num15], link2.KeyExpressions[num15])) { return(false); } num15++; } return(true); } return(false); } case SqlNodeType.Like: { SqlLike like = (SqlLike)node1; SqlLike like2 = (SqlLike)node2; if (!AreEqual(like.Expression, like2.Expression) || !AreEqual(like.Pattern, like2.Pattern)) { return(false); } return(AreEqual(like.Escape, like2.Escape)); } case SqlNodeType.Member: if (((SqlMember)node1).Member != ((SqlMember)node2).Member) { return(false); } return(AreEqual(((SqlMember)node1).Expression, ((SqlMember)node2).Expression)); case SqlNodeType.OptionalValue: { SqlOptionalValue value2 = (SqlOptionalValue)node1; SqlOptionalValue value3 = (SqlOptionalValue)node2; return(AreEqual(value2.Value, value3.Value)); } case SqlNodeType.Parameter: return(node1 == node2); case SqlNodeType.SearchedCase: { SqlSearchedCase case3 = (SqlSearchedCase)node1; SqlSearchedCase case4 = (SqlSearchedCase)node2; if (case3.Whens.Count == case4.Whens.Count) { int num7 = 0; int num8 = case3.Whens.Count; while (num7 < num8) { if (!AreEqual(case3.Whens[num7].Match, case4.Whens[num7].Match) || !AreEqual(case3.Whens[num7].Value, case4.Whens[num7].Value)) { return(false); } num7++; } return(AreEqual(case3.Else, case4.Else)); } return(false); } case SqlNodeType.SimpleCase: { SqlSimpleCase case7 = (SqlSimpleCase)node1; SqlSimpleCase case8 = (SqlSimpleCase)node2; if (case7.Whens.Count == case8.Whens.Count) { int num11 = 0; int num12 = case7.Whens.Count; while (num11 < num12) { if (!AreEqual(case7.Whens[num11].Match, case8.Whens[num11].Match) || !AreEqual(case7.Whens[num11].Value, case8.Whens[num11].Value)) { return(false); } num11++; } return(true); } return(false); } case SqlNodeType.Table: return(((SqlTable)node1).MetaTable == ((SqlTable)node2).MetaTable); case SqlNodeType.TypeCase: { SqlTypeCase @case = (SqlTypeCase)node1; SqlTypeCase case2 = (SqlTypeCase)node2; if (AreEqual(@case.Discriminator, case2.Discriminator)) { if (@case.Whens.Count != case2.Whens.Count) { return(false); } int num5 = 0; int num6 = @case.Whens.Count; while (num5 < num6) { if (!AreEqual(@case.Whens[num5].Match, case2.Whens[num5].Match)) { return(false); } if (!AreEqual(@case.Whens[num5].TypeBinding, case2.Whens[num5].TypeBinding)) { return(false); } num5++; } return(true); } return(false); } case SqlNodeType.Variable: { SqlVariable variable = (SqlVariable)node1; SqlVariable variable2 = (SqlVariable)node2; return(variable.Name == variable2.Name); } case SqlNodeType.Value: return(object.Equals(((SqlValue)node1).Value, ((SqlValue)node2).Value)); } } return(false); }
internal static bool AreSimilar(SqlExpression node1, SqlExpression node2) { if (node1 == node2) { return(true); } if (node1 == null || node2 == null) { return(false); } if (node1.NodeType != node2.NodeType || node1.ClrType != node2.ClrType || node1.SqlType != node2.SqlType) { return(false); } switch (node1.NodeType) { case SqlNodeType.New: { SqlNew new1 = (SqlNew)node1; SqlNew new2 = (SqlNew)node2; if (new1.Args.Count != new2.Args.Count || new1.Members.Count != new2.Members.Count) { return(false); } for (int i = 0, n = new1.Args.Count; i < n; i++) { if (!AreSimilar(new1.Args[i], new2.Args[i])) { return(false); } } for (int i = 0, n = new1.Members.Count; i < n; i++) { if (!MetaPosition.AreSameMember(new1.Members[i].Member, new2.Members[i].Member) || !AreSimilar(new1.Members[i].Expression, new2.Members[i].Expression)) { return(false); } } return(true); } case SqlNodeType.ColumnRef: { SqlColumnRef cref1 = (SqlColumnRef)node1; SqlColumnRef cref2 = (SqlColumnRef)node2; return(cref1.Column.Ordinal == cref2.Column.Ordinal); } case SqlNodeType.Link: { SqlLink l1 = (SqlLink)node1; SqlLink l2 = (SqlLink)node2; if (!MetaPosition.AreSameMember(l1.Member.Member, l2.Member.Member)) { return(false); } if (l1.KeyExpressions.Count != l2.KeyExpressions.Count) { return(false); } for (int i = 0, c = l1.KeyExpressions.Count; i < c; ++i) { if (!AreSimilar(l1.KeyExpressions[i], l2.KeyExpressions[i])) { return(false); } } return(true); } case SqlNodeType.Value: return(Object.Equals(((SqlValue)node1).Value, ((SqlValue)node2).Value)); case SqlNodeType.OptionalValue: { SqlOptionalValue ov1 = (SqlOptionalValue)node1; SqlOptionalValue ov2 = (SqlOptionalValue)node2; return(AreSimilar(ov1.Value, ov2.Value)); } case SqlNodeType.ValueOf: case SqlNodeType.OuterJoinedValue: return(AreSimilar(((SqlUnary)node1).Operand, ((SqlUnary)node2).Operand)); case SqlNodeType.Lift: return(AreSimilar(((SqlLift)node1).Expression, ((SqlLift)node2).Expression)); case SqlNodeType.Grouping: { SqlGrouping g1 = (SqlGrouping)node1; SqlGrouping g2 = (SqlGrouping)node2; return(AreSimilar(g1.Key, g2.Key) && AreSimilar(g1.Group, g2.Group)); } case SqlNodeType.ClientArray: { SqlClientArray a1 = (SqlClientArray)node1; SqlClientArray a2 = (SqlClientArray)node2; if (a1.Expressions.Count != a2.Expressions.Count) { return(false); } for (int i = 0, n = a1.Expressions.Count; i < n; i++) { if (!AreSimilar(a1.Expressions[i], a2.Expressions[i])) { return(false); } } return(true); } case SqlNodeType.UserColumn: return(((SqlUserColumn)node1).Name == ((SqlUserColumn)node2).Name); case SqlNodeType.ClientCase: { SqlClientCase c1 = (SqlClientCase)node1; SqlClientCase c2 = (SqlClientCase)node2; if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, n = c1.Whens.Count; i < n; i++) { if (!AreSimilar(c1.Whens[i].Match, c2.Whens[i].Match) || !AreSimilar(c1.Whens[i].Value, c2.Whens[i].Value)) { return(false); } } return(true); } case SqlNodeType.SearchedCase: { SqlSearchedCase c1 = (SqlSearchedCase)node1; SqlSearchedCase c2 = (SqlSearchedCase)node2; if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, n = c1.Whens.Count; i < n; i++) { if (!AreSimilar(c1.Whens[i].Match, c2.Whens[i].Match) || !AreSimilar(c1.Whens[i].Value, c2.Whens[i].Value)) { return(false); } } return(AreSimilar(c1.Else, c2.Else)); } case SqlNodeType.TypeCase: { SqlTypeCase c1 = (SqlTypeCase)node1; SqlTypeCase c2 = (SqlTypeCase)node2; if (!AreSimilar(c1.Discriminator, c2.Discriminator)) { return(false); } if (c1.Whens.Count != c2.Whens.Count) { return(false); } for (int i = 0, c = c1.Whens.Count; i < c; ++i) { if (!AreSimilar(c1.Whens[i].Match, c2.Whens[i].Match)) { return(false); } if (!AreSimilar(c1.Whens[i].TypeBinding, c2.Whens[i].TypeBinding)) { return(false); } } return(true); } case SqlNodeType.DiscriminatedType: { SqlDiscriminatedType dt1 = (SqlDiscriminatedType)node1; SqlDiscriminatedType dt2 = (SqlDiscriminatedType)node2; return(AreSimilar(dt1.Discriminator, dt2.Discriminator)); } case SqlNodeType.JoinedCollection: { SqlJoinedCollection j1 = (SqlJoinedCollection)node1; SqlJoinedCollection j2 = (SqlJoinedCollection)node2; return(AreSimilar(j1.Count, j2.Count) && AreSimilar(j1.Expression, j2.Expression)); } case SqlNodeType.Member: { SqlMember m1 = (SqlMember)node1; SqlMember m2 = (SqlMember)node2; return(m1.Member == m2.Member && AreSimilar(m1.Expression, m2.Expression)); } case SqlNodeType.ClientQuery: { SqlClientQuery cq1 = (SqlClientQuery)node1; SqlClientQuery cq2 = (SqlClientQuery)node2; if (cq1.Arguments.Count != cq2.Arguments.Count) { return(false); } for (int i = 0, n = cq1.Arguments.Count; i < n; i++) { if (!AreSimilar(cq1.Arguments[i], cq2.Arguments[i])) { return(false); } } return(true); } case SqlNodeType.MethodCall: { SqlMethodCall mc1 = (SqlMethodCall)node1; SqlMethodCall mc2 = (SqlMethodCall)node2; if (mc1.Method != mc2.Method || !AreSimilar(mc1.Object, mc2.Object)) { return(false); } if (mc1.Arguments.Count != mc2.Arguments.Count) { return(false); } for (int i = 0, n = mc1.Arguments.Count; i < n; i++) { if (!AreSimilar(mc1.Arguments[i], mc2.Arguments[i])) { return(false); } } return(true); } case SqlNodeType.ClientParameter: default: return(false); } }
internal override SqlExpression VisitOptionalValue(SqlOptionalValue sov) { sov.HasValue = this.VisitNamedExpression(sov.HasValue, "test"); sov.Value = this.VisitExpression(sov.Value); return(sov); }