public override void Visit(SqlArrayCreateScalarExpression sqlArrayCreateScalarExpression)
{
int numberOfItems = sqlArrayCreateScalarExpression.Items.Count();
if (numberOfItems == 0)
{
this.writer.Write("[]");
}
else if (numberOfItems == 1)
{
this.writer.Write("[");
sqlArrayCreateScalarExpression.Items[0].Accept(this);
this.writer.Write("]");
}
else
{
this.WriteStartContext("[");
for (int i = 0; i < sqlArrayCreateScalarExpression.Items.Length; i++)
{
if (i > 0)
{
this.WriteDelimiter(",");
}
sqlArrayCreateScalarExpression.Items[i].Accept(this);
}
this.WriteEndContext("]");
}
}
public void SqlArrayCreateScalarExpressionTest()
{
SqlArrayCreateScalarExpression inner = SqlArrayCreateScalarExpression.Create(
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(1)),
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(2)),
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(3)));
AssertEvaluation(
CosmosArray.Create(
new List <CosmosElement>()
{
CosmosNumber64.Create(1),
CosmosNumber64.Create(2),
CosmosNumber64.Create(3),
}),
inner);
SqlArrayCreateScalarExpression outer = SqlArrayCreateScalarExpression.Create(inner);
AssertEvaluation(
CosmosArray.Create(
new List <CosmosElement>()
{
CosmosArray.Create(
new List <CosmosElement>()
{
CosmosNumber64.Create(1),
CosmosNumber64.Create(2),
CosmosNumber64.Create(3),
})
}),
outer);
}
public override int Visit(SqlArrayCreateScalarExpression sqlArrayCreateScalarExpression)
{
int hashCode = SqlArrayCreateScalarExpressionHashCode;
for (int i = 0; i < sqlArrayCreateScalarExpression.Items.Length; i++)
{
hashCode = CombineHashes(hashCode, sqlArrayCreateScalarExpression.Items[i].Accept(this));
}
return(hashCode);
}
public override bool Visit(SqlArrayCreateScalarExpression sqlArrayCreateScalarExpression)
{
bool hasAggregates = false;
foreach (SqlScalarExpression item in sqlArrayCreateScalarExpression.Items)
{
hasAggregates |= item.Accept(this);
}
return(hasAggregates);
}
public override SqlObject Visit(SqlArrayCreateScalarExpression sqlArrayCreateScalarExpression)
{
List <SqlScalarExpression> items = new List <SqlScalarExpression>();
foreach (SqlScalarExpression item in sqlArrayCreateScalarExpression.Items)
{
items.Add(item.Accept(this) as SqlScalarExpression);
}
return(SqlArrayCreateScalarExpression.Create(items.ToImmutableArray()));
}
public override bool Visit(SqlArrayCreateScalarExpression first, SqlObject secondAsObject)
{
if (!(secondAsObject is SqlArrayCreateScalarExpression second))
{
return(false);
}
if (!SequenceEquals(first.Items, second.Items))
{
return(false);
}
return(true);
}
public override bool Visit(SqlArrayCreateScalarExpression scalarExpression)
{
if (this.MatchesGroupByExpression(scalarExpression))
{
return(true);
}
foreach (SqlScalarExpression arrayItem in scalarExpression.Items)
{
if (!arrayItem.Accept(this))
{
return(false);
}
}
return(true);
}
public override CosmosElement Visit(
SqlArrayCreateScalarExpression scalarExpression,
CosmosElement document)
{
List <CosmosElement> arrayItems = new List <CosmosElement>();
foreach (SqlScalarExpression item in scalarExpression.Items)
{
CosmosElement value = item.Accept(this, document);
if (value != Undefined)
{
arrayItems.Add(value);
}
}
return(CosmosArray.Create(arrayItems));
}
public override SqlObject VisitArrayCreateScalarExpression([NotNull] sqlParser.ArrayCreateScalarExpressionContext context)
{
Contract.Requires(context != null);
Contract.Requires(context.ChildCount >= 2); // start array and end array tokens
List <SqlScalarExpression> arrayItems = new List <SqlScalarExpression>();
if (context.scalar_expression_list() != null)
{
foreach (sqlParser.Scalar_expressionContext scalarExpressionContext in context.scalar_expression_list().scalar_expression())
{
arrayItems.Add((SqlScalarExpression)this.Visit(scalarExpressionContext));
}
}
return(SqlArrayCreateScalarExpression.Create(arrayItems.ToImmutableArray()));
}
/// <summary>
/// Constructs <see cref="SqlScalarExpression"/> from a geometry <see cref="JToken"/>.
/// </summary>
/// <param name="jToken">Json token.</param>
/// <returns>Instance of <see cref="SqlScalarExpression"/>.</returns>
private static SqlScalarExpression FromJToken(JToken jToken)
{
switch (jToken.Type)
{
case JTokenType.Array:
return(SqlArrayCreateScalarExpression.Create(jToken.Select(FromJToken).ToArray()));
case JTokenType.Boolean:
return(SqlLiteralScalarExpression.Create(SqlBooleanLiteral.Create(jToken.Value <bool>())));
case JTokenType.Null:
return(SqlLiteralScalarExpression.SqlNullLiteralScalarExpression);
case JTokenType.String:
return(SqlLiteralScalarExpression.Create(SqlStringLiteral.Create(jToken.Value <string>())));
case JTokenType.Object:
SqlObjectProperty[] properties =
((JObject)jToken).Properties()
.Select(
p =>
SqlObjectProperty.Create(
SqlPropertyName.Create(p.Name),
FromJToken(p.Value)))
.ToArray();
return(SqlObjectCreateScalarExpression.Create(properties));
case JTokenType.Float:
case JTokenType.Integer:
SqlNumberLiteral sqlNumberLiteral = SqlNumberLiteral.Create(jToken.Value <double>());
return(SqlLiteralScalarExpression.Create(sqlNumberLiteral));
default:
throw new DocumentQueryException(string.Format(CultureInfo.CurrentCulture, ClientResources.UnexpectedTokenType, jToken.Type));
}
}
public abstract TOutput Visit(SqlArrayCreateScalarExpression sqlObject, TArg input);
public static SqlScalarExpression Substitute(SqlScalarExpression replacement, SqlIdentifier toReplace, SqlScalarExpression into)
{
if (into == null)
{
return(null);
}
if (replacement == null)
{
throw new ArgumentNullException("replacement");
}
switch (into.Kind)
{
case SqlObjectKind.ArrayCreateScalarExpression:
{
SqlArrayCreateScalarExpression arrayExp = into as SqlArrayCreateScalarExpression;
if (arrayExp == null)
{
throw new DocumentQueryException("Expected a SqlArrayCreateScalarExpression, got a " + into.GetType());
}
SqlScalarExpression[] items = new SqlScalarExpression[arrayExp.Items.Count];
for (int i = 0; i < items.Length; i++)
{
SqlScalarExpression item = arrayExp.Items[i];
SqlScalarExpression replitem = Substitute(replacement, toReplace, item);
items[i] = replitem;
}
return(SqlArrayCreateScalarExpression.Create(items));
}
case SqlObjectKind.BinaryScalarExpression:
{
SqlBinaryScalarExpression binaryExp = into as SqlBinaryScalarExpression;
if (binaryExp == null)
{
throw new DocumentQueryException("Expected a BinaryScalarExpression, got a " + into.GetType());
}
SqlScalarExpression replleft = Substitute(replacement, toReplace, binaryExp.LeftExpression);
SqlScalarExpression replright = Substitute(replacement, toReplace, binaryExp.RightExpression);
return(SqlBinaryScalarExpression.Create(binaryExp.OperatorKind, replleft, replright));
}
case SqlObjectKind.UnaryScalarExpression:
{
SqlUnaryScalarExpression unaryExp = into as SqlUnaryScalarExpression;
if (unaryExp == null)
{
throw new DocumentQueryException("Expected a SqlUnaryScalarExpression, got a " + into.GetType());
}
SqlScalarExpression repl = Substitute(replacement, toReplace, unaryExp.Expression);
return(SqlUnaryScalarExpression.Create(unaryExp.OperatorKind, repl));
}
case SqlObjectKind.LiteralScalarExpression:
{
return(into);
}
case SqlObjectKind.FunctionCallScalarExpression:
{
SqlFunctionCallScalarExpression funcExp = into as SqlFunctionCallScalarExpression;
if (funcExp == null)
{
throw new DocumentQueryException("Expected a SqlFunctionCallScalarExpression, got a " + into.GetType());
}
SqlScalarExpression[] items = new SqlScalarExpression[funcExp.Arguments.Count];
for (int i = 0; i < items.Length; i++)
{
SqlScalarExpression item = funcExp.Arguments[i];
SqlScalarExpression replitem = Substitute(replacement, toReplace, item);
items[i] = replitem;
}
return(SqlFunctionCallScalarExpression.Create(funcExp.Name, funcExp.IsUdf, items));
}
case SqlObjectKind.ObjectCreateScalarExpression:
{
SqlObjectCreateScalarExpression objExp = into as SqlObjectCreateScalarExpression;
if (objExp == null)
{
throw new DocumentQueryException("Expected a SqlObjectCreateScalarExpression, got a " + into.GetType());
}
return(SqlObjectCreateScalarExpression.Create(
objExp
.Properties
.Select(prop => SqlObjectProperty.Create(prop.Name, Substitute(replacement, toReplace, prop.Expression)))));
}
case SqlObjectKind.MemberIndexerScalarExpression:
{
SqlMemberIndexerScalarExpression memberExp = into as SqlMemberIndexerScalarExpression;
if (memberExp == null)
{
throw new DocumentQueryException("Expected a SqlMemberIndexerScalarExpression, got a " + into.GetType());
}
SqlScalarExpression replMember = Substitute(replacement, toReplace, memberExp.MemberExpression);
SqlScalarExpression replIndex = Substitute(replacement, toReplace, memberExp.IndexExpression);
return(SqlMemberIndexerScalarExpression.Create(replMember, replIndex));
}
case SqlObjectKind.PropertyRefScalarExpression:
{
// This is the leaf of the recursion
SqlPropertyRefScalarExpression propExp = into as SqlPropertyRefScalarExpression;
if (propExp == null)
{
throw new DocumentQueryException("Expected a SqlPropertyRefScalarExpression, got a " + into.GetType());
}
if (propExp.MemberExpression == null)
{
if (propExp.PropertyIdentifier.Value == toReplace.Value)
{
return(replacement);
}
else
{
return(propExp);
}
}
else
{
SqlScalarExpression replMember = Substitute(replacement, toReplace, propExp.MemberExpression);
return(SqlPropertyRefScalarExpression.Create(replMember, propExp.PropertyIdentifier));
}
}
case SqlObjectKind.ConditionalScalarExpression:
{
SqlConditionalScalarExpression conditionalExpression = (SqlConditionalScalarExpression)into;
if (conditionalExpression == null)
{
throw new ArgumentException();
}
SqlScalarExpression condition = Substitute(replacement, toReplace, conditionalExpression.ConditionExpression);
SqlScalarExpression first = Substitute(replacement, toReplace, conditionalExpression.FirstExpression);
SqlScalarExpression second = Substitute(replacement, toReplace, conditionalExpression.SecondExpression);
return(SqlConditionalScalarExpression.Create(condition, first, second));
}
case SqlObjectKind.InScalarExpression:
{
SqlInScalarExpression inExpression = (SqlInScalarExpression)into;
if (inExpression == null)
{
throw new ArgumentException();
}
SqlScalarExpression expression = Substitute(replacement, toReplace, inExpression.Expression);
SqlScalarExpression[] items = new SqlScalarExpression[inExpression.Items.Count];
for (int i = 0; i < items.Length; i++)
{
items[i] = Substitute(replacement, toReplace, inExpression.Items[i]);
}
return(SqlInScalarExpression.Create(expression, inExpression.Not, items));
}
default:
throw new ArgumentOutOfRangeException("Unexpected Sql Scalar expression kind " + into.Kind);
}
}
public void ARRAY_CONTAINS()
{
// ARRAY_CONTAINS(["apples", "strawberries", "bananas"], "apples")
AssertEvaluation(
expected: CosmosBoolean.Create(new string[] { "apples", "strawberries", "bananas" }.Contains("apples")),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray("apples", "strawberries", "bananas")),
SqlLiteralScalarExpression.Create(SqlStringLiteral.Create("apples"))));
// ARRAY_CONTAINS(["apples", "strawberries", "bananas"], "mangoes")
AssertEvaluation(
expected: CosmosBoolean.Create(new string[] { "apples", "strawberries", "bananas" }.Contains("mangoes")),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray("apples", "strawberries", "bananas")),
SqlLiteralScalarExpression.Create(SqlStringLiteral.Create("mangoes"))));
// ARRAY_CONTAINS([{"name": "apples", "fresh": true}, {"name": "strawberries", "fresh": true}], {"name": "apples"}, true)
AssertEvaluation(
expected: CosmosBoolean.Create(true),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray(
JObject.FromObject(new { name = "apples", fresh = true }),
JObject.FromObject(new { name = "strawberries", fresh = true }))),
JTokenToSqlScalarExpression.Convert(JObject.FromObject(new { name = "apples" })),
trueBoolean));
// ARRAY_CONTAINS([{"name": "apples", "fresh": true}, {"name": "strawberries", "fresh": true}], {"name": "apples"}, undefined)
AssertEvaluation(
expected: CosmosBoolean.Create(false),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray(
JObject.FromObject(new { name = "apples", fresh = true }),
JObject.FromObject(new { name = "strawberries", fresh = true }))),
JTokenToSqlScalarExpression.Convert(JObject.FromObject(new { name = "apples" })),
SqlLiteralScalarExpression.Create(SqlUndefinedLiteral.Create())));
// ARRAY_CONTAINS([{"name": "apples", "fresh": true}, {"name": "strawberries", "fresh": true}], {"name": "apples"})
AssertEvaluation(
expected: CosmosBoolean.Create(false),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray(
JObject.FromObject(new { name = "apples", fresh = true }),
JObject.FromObject(new { name = "strawberries", fresh = true }))),
JTokenToSqlScalarExpression.Convert(JObject.FromObject(new { name = "apples" }))));
// ARRAY_CONTAINS([{"name": "apples", "fresh": true}, {"name": "strawberries", "fresh": true}], {"name": "mangoes"}, true)
AssertEvaluation(
expected: CosmosBoolean.Create(false),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
JTokenToSqlScalarExpression.Convert(new JArray(
JObject.FromObject(new { name = "apples", fresh = true }),
JObject.FromObject(new { name = "strawberries", fresh = true }))),
JTokenToSqlScalarExpression.Convert(JObject.FromObject(new { name = "mangoes" })),
trueBoolean));
// ARRAY_CONTAINS([SQUARE(2), POWER(2, 2)] 2)
AssertEvaluation(
expected: CosmosBoolean.Create(new double[] { 2 * 2, Math.Pow(2, 2) }.Contains(2)),
sqlScalarExpression: SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.ArrayContains,
SqlArrayCreateScalarExpression.Create(
SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.Square,
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(2))),
SqlFunctionCallScalarExpression.CreateBuiltin(
SqlFunctionCallScalarExpression.Identifiers.Power,
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(2)),
SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(2)))),
JTokenToSqlScalarExpression.Convert(2)));
}
public void SqlBinaryScalarExpressionTest()
{
SqlLiteralScalarExpression five = SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(5));
SqlLiteralScalarExpression three = SqlLiteralScalarExpression.Create(SqlNumberLiteral.Create(3));
SqlLiteralScalarExpression hello = SqlLiteralScalarExpression.Create(SqlStringLiteral.Create("Hello"));
SqlLiteralScalarExpression world = SqlLiteralScalarExpression.Create(SqlStringLiteral.Create("World"));
SqlLiteralScalarExpression trueBoolean = SqlLiteralScalarExpression.Create(SqlBooleanLiteral.True);
SqlLiteralScalarExpression falseBoolean = SqlLiteralScalarExpression.Create(SqlBooleanLiteral.False);
SqlLiteralScalarExpression nullLiteral = SqlLiteralScalarExpression.Create(SqlNullLiteral.Singleton);
SqlLiteralScalarExpression undefinedLiteral = SqlLiteralScalarExpression.Create(SqlUndefinedLiteral.Create());
SqlArrayCreateScalarExpression arrayCreateScalarExpresion1 = SqlArrayCreateScalarExpression.Create();
SqlArrayCreateScalarExpression arrayCreateScalarExpresion2 = SqlArrayCreateScalarExpression.Create(five);
SqlObjectCreateScalarExpression objectCreateScalarExpression = SqlObjectCreateScalarExpression.Create();
SqlBinaryScalarExpression fivePlusThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Add, five, three);
AssertEvaluation(CosmosNumber64.Create(3 + 5), fivePlusThree);
SqlBinaryScalarExpression trueAndFalse = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.And, trueBoolean, falseBoolean);
AssertEvaluation(CosmosBoolean.Create(true && false), trueAndFalse);
SqlBinaryScalarExpression falseAndUndefined = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.And, falseBoolean, undefinedLiteral);
AssertEvaluation(CosmosBoolean.Create(false), falseAndUndefined);
SqlBinaryScalarExpression trueAndUndefined = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.And, trueBoolean, undefinedLiteral);
AssertEvaluation(Undefined, trueAndUndefined);
try
{
SqlBinaryScalarExpression threeBitwiseAndFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.BitwiseAnd, three, five);
AssertEvaluation(CosmosNumber64.Create(1), threeBitwiseAndFive);
}
catch (Exception)
{
}
try
{
SqlBinaryScalarExpression threeBitwiseOrFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.BitwiseOr, three, five);
AssertEvaluation(CosmosNumber64.Create(7), threeBitwiseOrFive);
}
catch (Exception)
{
}
try
{
SqlBinaryScalarExpression threeBitwiseXorFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.BitwiseXor, three, five);
AssertEvaluation(CosmosNumber64.Create(7), threeBitwiseXorFive);
}
catch (Exception)
{
}
SqlBinaryScalarExpression nullCoalesceFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Coalesce, nullLiteral, five);
AssertEvaluation(CosmosNull.Create(), nullCoalesceFive);
SqlBinaryScalarExpression fiveDivideFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Divide, five, five);
AssertEvaluation(CosmosNumber64.Create(5 / 5), fiveDivideFive);
SqlBinaryScalarExpression fiveEqualFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Equal, five, five);
AssertEvaluation(CosmosBoolean.Create(5 == 5), fiveEqualFive);
SqlBinaryScalarExpression threeEqualFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Equal, three, five);
AssertEvaluation(CosmosBoolean.Create(3 == 5), threeEqualFive);
AssertEvaluation(
CosmosBoolean.Create(true),
SqlBinaryScalarExpression.Create(
SqlBinaryScalarOperatorKind.Equal,
arrayCreateScalarExpresion1,
arrayCreateScalarExpresion1));
AssertEvaluation(
CosmosBoolean.Create(false),
SqlBinaryScalarExpression.Create(
SqlBinaryScalarOperatorKind.Equal,
arrayCreateScalarExpresion1,
arrayCreateScalarExpresion2));
AssertEvaluation(
CosmosBoolean.Create(false),
SqlBinaryScalarExpression.Create(
SqlBinaryScalarOperatorKind.Equal,
arrayCreateScalarExpresion1,
objectCreateScalarExpression));
SqlBinaryScalarExpression threeGreaterThanFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.GreaterThan, three, five);
AssertEvaluation(CosmosBoolean.Create(3 > 5), threeGreaterThanFive);
SqlBinaryScalarExpression fiveGreaterThanThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.GreaterThan, five, three);
AssertEvaluation(CosmosBoolean.Create(5 > 3), fiveGreaterThanThree);
SqlBinaryScalarExpression threeGreaterThanOrEqualFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.GreaterThanOrEqual, three, five);
AssertEvaluation(CosmosBoolean.Create(3 >= 5), threeGreaterThanOrEqualFive);
SqlBinaryScalarExpression fiveGreaterThanOrEqualThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.GreaterThanOrEqual, five, three);
AssertEvaluation(CosmosBoolean.Create(5 >= 3), fiveGreaterThanOrEqualThree);
SqlBinaryScalarExpression threeLessThanFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.LessThan, three, five);
AssertEvaluation(CosmosBoolean.Create(3 < 5), threeLessThanFive);
SqlBinaryScalarExpression fiveLessThanThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.LessThan, five, three);
AssertEvaluation(CosmosBoolean.Create(5 < 3), fiveLessThanThree);
SqlBinaryScalarExpression threeLessThanOrEqualFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.LessThanOrEqual, three, five);
AssertEvaluation(CosmosBoolean.Create(3 <= 5), threeLessThanOrEqualFive);
SqlBinaryScalarExpression fiveLessThanOrEqualThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.LessThanOrEqual, five, three);
AssertEvaluation(CosmosBoolean.Create(5 <= 3), fiveLessThanOrEqualThree);
SqlBinaryScalarExpression fiveModThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Modulo, five, three);
AssertEvaluation(CosmosNumber64.Create(5 % 3), fiveModThree);
SqlBinaryScalarExpression fiveMultiplyThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Multiply, five, three);
AssertEvaluation(CosmosNumber64.Create(5 * 3), fiveMultiplyThree);
SqlBinaryScalarExpression fiveNotEqualThree = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.NotEqual, five, three);
AssertEvaluation(CosmosBoolean.Create(5 != 3), fiveNotEqualThree);
SqlBinaryScalarExpression fiveNotEqualFive = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.NotEqual, five, five);
AssertEvaluation(CosmosBoolean.Create(5 != 5), fiveNotEqualFive);
SqlBinaryScalarExpression trueOrFalse = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Or, trueBoolean, falseBoolean);
AssertEvaluation(CosmosBoolean.Create(true || false), trueOrFalse);
SqlBinaryScalarExpression trueOrUndefined = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Or, trueBoolean, undefinedLiteral);
AssertEvaluation(CosmosBoolean.Create(true), trueOrUndefined);
SqlBinaryScalarExpression falseOrUndefined = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Or, falseBoolean, undefinedLiteral);
AssertEvaluation(Undefined, falseOrUndefined);
SqlBinaryScalarExpression helloConcatWorld = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.StringConcat, hello, world);
AssertEvaluation(CosmosString.Create("Hello" + "World"), helloConcatWorld);
SqlBinaryScalarExpression fiveSubtract3 = SqlBinaryScalarExpression.Create(SqlBinaryScalarOperatorKind.Subtract, five, three);
AssertEvaluation(CosmosNumber64.Create(5 - 3), fiveSubtract3);
}
public abstract void Visit(SqlArrayCreateScalarExpression scalarExpression);
public abstract TResult Visit(SqlArrayCreateScalarExpression sqlObject);
/// <summary>
/// Converts a JToken to a semantically equivalent SqlScalarExpression.
/// </summary>
/// <param name="token">The JToken to convert.</param>
/// <returns>The semantically equivalent SqlScalarExpression.</returns>
public static SqlScalarExpression Convert(JToken token)
{
if (token == null)
{
return(Undefined);
}
switch (token.Type)
{
case JTokenType.Array:
{
List <SqlScalarExpression> items = new List <SqlScalarExpression>();
foreach (JToken element in token)
{
items.Add(JTokenToSqlScalarExpression.Convert(element));
}
return(SqlArrayCreateScalarExpression.Create(items.ToArray()));
}
case JTokenType.Boolean:
{
SqlBooleanLiteral literal = SqlBooleanLiteral.Create(token.ToObject <bool>());
return(SqlLiteralScalarExpression.Create(literal));
}
case JTokenType.Null:
{
SqlNullLiteral literal = SqlNullLiteral.Singleton;
return(SqlLiteralScalarExpression.Create(literal));
}
case JTokenType.Integer:
case JTokenType.Float:
{
SqlNumberLiteral literal = SqlNumberLiteral.Create(token.ToObject <double>());
return(SqlLiteralScalarExpression.Create(literal));
}
case JTokenType.Object:
{
List <SqlObjectProperty> properties = new List <SqlObjectProperty>();
foreach (JProperty prop in (JToken)token)
{
SqlPropertyName name = SqlPropertyName.Create(prop.Name);
JToken value = prop.Value;
SqlScalarExpression expression = JTokenToSqlScalarExpression.Convert(value);
SqlObjectProperty property = SqlObjectProperty.Create(name, expression);
properties.Add(property);
}
return(SqlObjectCreateScalarExpression.Create(properties.ToArray()));
}
case JTokenType.String:
{
SqlStringLiteral literal = SqlStringLiteral.Create(token.ToObject <string>());
return(SqlLiteralScalarExpression.Create(literal));
}
default:
throw new ArgumentException(string.Format(CultureInfo.CurrentUICulture, "Unsupported JsonType {0}", token.Type));
}
}
public abstract void Visit(SqlArrayCreateScalarExpression sqlObject);
public static SqlScalarExpression Substitute(SqlScalarExpression replacement, SqlIdentifier toReplace, SqlScalarExpression into)
{
if (into == null)
{
return(null);
}
if (replacement == null)
{
throw new ArgumentNullException("replacement");
}
switch (into)
{
case SqlArrayCreateScalarExpression arrayExp:
{
SqlScalarExpression[] items = new SqlScalarExpression[arrayExp.Items.Length];
for (int i = 0; i < items.Length; i++)
{
SqlScalarExpression item = arrayExp.Items[i];
SqlScalarExpression replitem = Substitute(replacement, toReplace, item);
items[i] = replitem;
}
return(SqlArrayCreateScalarExpression.Create(items));
}
case SqlBinaryScalarExpression binaryExp:
{
SqlScalarExpression replleft = Substitute(replacement, toReplace, binaryExp.LeftExpression);
SqlScalarExpression replright = Substitute(replacement, toReplace, binaryExp.RightExpression);
return(SqlBinaryScalarExpression.Create(binaryExp.OperatorKind, replleft, replright));
}
case SqlUnaryScalarExpression unaryExp:
{
SqlScalarExpression repl = Substitute(replacement, toReplace, unaryExp.Expression);
return(SqlUnaryScalarExpression.Create(unaryExp.OperatorKind, repl));
}
case SqlLiteralScalarExpression literalScalarExpression:
{
return(into);
}
case SqlFunctionCallScalarExpression funcExp:
{
SqlScalarExpression[] items = new SqlScalarExpression[funcExp.Arguments.Length];
for (int i = 0; i < items.Length; i++)
{
SqlScalarExpression item = funcExp.Arguments[i];
SqlScalarExpression replitem = Substitute(replacement, toReplace, item);
items[i] = replitem;
}
return(SqlFunctionCallScalarExpression.Create(funcExp.Name, funcExp.IsUdf, items));
}
case SqlObjectCreateScalarExpression objExp:
{
return(SqlObjectCreateScalarExpression.Create(
objExp
.Properties
.Select(prop => SqlObjectProperty.Create(prop.Name, Substitute(replacement, toReplace, prop.Value)))
.ToImmutableArray()));
}
case SqlMemberIndexerScalarExpression memberExp:
{
SqlScalarExpression replMember = Substitute(replacement, toReplace, memberExp.Member);
SqlScalarExpression replIndex = Substitute(replacement, toReplace, memberExp.Indexer);
return(SqlMemberIndexerScalarExpression.Create(replMember, replIndex));
}
case SqlPropertyRefScalarExpression propExp:
{
// This is the leaf of the recursion
if (propExp.Member == null)
{
if (propExp.Identifier.Value == toReplace.Value)
{
return(replacement);
}
else
{
return(propExp);
}
}
else
{
SqlScalarExpression replMember = Substitute(replacement, toReplace, propExp.Member);
return(SqlPropertyRefScalarExpression.Create(replMember, propExp.Identifier));
}
}
case SqlConditionalScalarExpression conditionalExpression:
{
SqlScalarExpression condition = Substitute(replacement, toReplace, conditionalExpression.Condition);
SqlScalarExpression first = Substitute(replacement, toReplace, conditionalExpression.Consequent);
SqlScalarExpression second = Substitute(replacement, toReplace, conditionalExpression.Alternative);
return(SqlConditionalScalarExpression.Create(condition, first, second));
}
case SqlInScalarExpression inExpression:
{
SqlScalarExpression expression = Substitute(replacement, toReplace, inExpression.Needle);
SqlScalarExpression[] items = new SqlScalarExpression[inExpression.Haystack.Length];
for (int i = 0; i < items.Length; i++)
{
items[i] = Substitute(replacement, toReplace, inExpression.Haystack[i]);
}
return(SqlInScalarExpression.Create(expression, inExpression.Not, items));
}
default:
throw new ArgumentOutOfRangeException("Unexpected Sql Scalar expression kind " + into.GetType());
}
}
