static void Main()
{
// Write a program that calculates the value of given arithmetical expression.
// The expression can contain the following elements only:
// Real numbers, e.g. 5, 18.33, 3.14159, 12.6
// Arithmetic operators: +, -, *, / (standard priorities)
// Mathematical functions: ln(x), sqrt(x), pow(x,y)
// Brackets (for changing the default priorities)
// Examples:
// (3+5.3) * 2.7 - ln(22) / pow(2.2, -1.7) = 10.60...
// pow(2, 3.14) * (3 - (3 * sqrt(2) - 3.2) + 1.5*0.3) = 21.22...
Console.Write("Please enter a math expression: ");
string expression = Console.ReadLine();
ExpressionEvaluator expressionEvaluator = new ExpressionEvaluator();
double result = 0;
if (expressionEvaluator.TryEvaluate(expression, out result))
{
Console.WriteLine("result: {0}", result);
}
else
{
Console.WriteLine("Incorrect expression!");
}
}
public void Setup()
{
mockParser = new Mock<IParser>();
expressionEvaluator = new AlbatrossExpressionEvaluator(mockParser.Object);
mockParser.Setup(p => p.Compile("expression").EvalValue(null)).Returns(9266);
}
public void ExpressionEvaluator_Complex_EvaluateInRootDataContext()
{
var view = new RedwoodView()
{
DataContext = new TestViewModel() { SubObject = new TestViewModel2() { Value = "hello" } },
Children =
{
new HtmlGenericControl("html")
{
Children =
{
new TextBox()
{
ID = "txb"
}
}
}
.WithBinding(RedwoodBindableControl.DataContextProperty, new ValueBindingExpression("SubObject"))
}
};
var textbox = view.FindControl("txb") as TextBox;
var evaluator = new ExpressionEvaluator();
var result = evaluator.Evaluate(new ValueBindingExpression("Value"), RedwoodBindableControl.DataContextProperty, textbox);
Assert.IsInstanceOfType(result, typeof(string));
Assert.AreEqual("hello", result);
}
/// <summary>
/// Creates a new <see cref="TransactionVariables"/>.
/// </summary>
/// <param name="formId">The form id.</param>
/// <param name="applicationId">The application id.</param>
/// <param name="applicationData">The application data.</param>
/// <returns>A new <see cref="TransactionVariables"/>.</returns>
public TransactionVariables Create(string formId, string applicationId, ApplicationData applicationData)
{
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(null, formId, null, applicationId, applicationData));
double amountValue = evaluator.Evaluate<double>(this.AmountExpression);
string referenceValue = evaluator.Evaluate<string>(this.ReferenceExpression);
return new TransactionVariables(this.MerchantPassword, amountValue, referenceValue);
}
public HostBridge(GossipLexer gossipLexer)
{
m_HostCallTable = new HostCallTable();
m_TypeBindingTable = new TypeBindingTable(gossipLexer);
m_EnumDefineTable = new EnumDefineTable();
m_ExpressionEvaluator = new ExpressionEvaluator(m_HostCallTable);
m_EventBindingTable = new EventBindingTable();
}
public void ExpressionEvaluator_Standalone_Valid_MethodResult()
{
var viewModel = new TestA() { TestProp = new TestA() };
var evaluator = new ExpressionEvaluator() { AllowMethods = true };
Assert.AreEqual(viewModel.GetType().GetMethod("Test"), evaluator.Evaluate("Test", viewModel));
Assert.AreEqual(viewModel.GetType().GetMethod("Test"), evaluator.Evaluate("_root.Test", viewModel));
Assert.AreEqual(viewModel.GetType().GetMethod("Test2"), evaluator.Evaluate("_root.TestProp.Test2", viewModel));
}
private ExpressionEvaluator GetExpressionEvaluator(CriteriaOperator criteria)
{
if (criteria.ToString() == lastCriteria)
return lastEvaluator;
lastCriteria = criteria.ToString();
PropertyDescriptorCollection pdc = ((ITypedList)_View.DataSource).GetItemProperties(null);
lastEvaluator = new ExpressionEvaluator(pdc, criteria, false);
return lastEvaluator;
}
public static bool Fit(this CriteriaOperator criteriaOperator, object targetObject) {
if (ReferenceEquals(criteriaOperator, null))
return true;
Type objectType = targetObject.GetType();
var wrapper = new LocalizedCriteriaWrapper(objectType, criteriaOperator);
wrapper.UpdateParametersValues(targetObject);
var objectSpace = XPObjectSpace.FindObjectSpaceByObject(targetObject);
EvaluatorContextDescriptor descriptor = objectSpace != null ? objectSpace.GetEvaluatorContextDescriptor(objectType) : new EvaluatorContextDescriptorDefault(objectType);
var evaluator = new ExpressionEvaluator(descriptor, wrapper.CriteriaOperator, XpoTypesInfoHelper.GetXpoTypeInfoSource().XPDictionary.CustomFunctionOperators);
return evaluator.Fit(targetObject);
}
public void SetPlugsByCriteries(Drawing drawing, CriteriaOperator criteria)
{
var hier = _dataManagersFactory.GetDrawingsHierClassDataManager();
var evaluator = new ExpressionEvaluator(TypeDescriptor.GetProperties(typeof (Drawing)), criteria);
var childrens = hier.GetListAllChildrens(drawing.Id);
var plugsChildrens = evaluator.Filter(childrens);
foreach (Drawing children in plugsChildrens)
{
children.OP = "З";
hier.Update(children);
}
}
/// <summary>
/// Evaluates the given expression in at the provided line number and returns the values
/// that the expression can evaluate to.
/// </summary>
/// <param name="exprText">The expression to determine the result of.</param>
/// <param name="index">The 0-based absolute index into the file where the expression should be evaluated within the module.</param>
public IEnumerable<AnalysisValue> GetValuesByIndex(string exprText, int index) {
var scope = FindEnvironment(index);
var expr = Statement.GetExpression(GetAstFromText(exprText).Block);
var unit = GetEvalAnalysisUnit(scope);
var eval = new ExpressionEvaluator(unit, scope);
var res = AnalysisSet.EmptyUnion;
if (expr != null) {
var values = eval.Evaluate(expr);
foreach (var v in values) {
if (v.Value.IsCurrent) {
res = res.Add(v);
}
}
}
return res.Select(x => x.Value);
}
public void ExpressionEvaluator_Standalone_Valid_PropertyAccess()
{
var viewModel = new
{
FirstName = "aa",
LastName = new
{
Name = "bb",
Title = new[] { 1, 2, 3 }
}
};
var evaluator = new ExpressionEvaluator();
Assert.AreEqual(viewModel.FirstName, evaluator.Evaluate("FirstName", viewModel));
Assert.AreEqual(viewModel.LastName, evaluator.Evaluate("LastName", viewModel));
Assert.AreEqual(viewModel.LastName.Name, evaluator.Evaluate("LastName.Name", viewModel));
Assert.AreEqual(viewModel.LastName.Title[2], evaluator.Evaluate("LastName.Title[2]", viewModel));
Assert.AreEqual(viewModel.LastName.Title[2], evaluator.Evaluate("_root.LastName.Title[2]", viewModel));
}
/// <summary>
/// Evaluates the given expression in at the provided line number and returns the values
/// that the expression can evaluate to.
/// </summary>
/// <param name="exprText">The expression to determine the result of.</param>
/// <param name="location">The location in the file where the expression should be evaluated.</param>
/// <remarks>New in 2.2</remarks>
public IEnumerable<AnalysisValue> GetValues(string exprText, SourceLocation location) {
var scope = FindScope(location);
var privatePrefix = GetPrivatePrefixClassName(scope);
var expr = Statement.GetExpression(GetAstFromText(exprText, privatePrefix).Body);
var unit = GetNearestEnclosingAnalysisUnit(scope);
var eval = new ExpressionEvaluator(unit.CopyForEval(), scope, mergeScopes: true);
var values = eval.Evaluate(expr);
var res = AnalysisSet.EmptyUnion;
foreach (var v in values) {
MultipleMemberInfo multipleMembers = v as MultipleMemberInfo;
if (multipleMembers != null) {
foreach (var member in multipleMembers.Members) {
if (member.IsCurrent) {
res = res.Add(member);
}
}
} else if (v.IsCurrent) {
res = res.Add(v);
}
}
return res;
}
public RowMatcher(WildCardValueMatcher wildCardValueMatcher, ExpressionEvaluator expressionEvaluator)
{
_wildCardValueMatcher = wildCardValueMatcher;
_expressionEvaluator = expressionEvaluator;
}
IEnumerable GetDataSource() {
IEnumerable dataSource = null;
if (_dataSourceProperty != null) {
dataSource = _dataSourceProperty.GetValue(CurrentObject, null) as IEnumerable;
if (dataSource != null) {
bool hasItems = (dataSource).GetEnumerator().MoveNext();
if (!hasItems)
dataSource = null;
}
}
if (dataSource == null) {
if (string.IsNullOrEmpty(_isNullCriteria)) {
if (_isNullMode == DataSourcePropertyIsNullMode.SelectAll)
return descriptor.Values;
if (_isNullMode == DataSourcePropertyIsNullMode.SelectNothing)
return null;
} else {
CriteriaOperator criteriaOperator = CriteriaOperator.Parse(_isNullCriteria);
if (!ReferenceEquals(criteriaOperator, null)) {
dataSource = new List<object>();
foreach (object item in descriptor.Values)
((IList)dataSource).Add(CreateEditItem(item));
criteriaOperator.Accept(new EnumCriteriaParser(PropertyName, _propertyType));
var filteredDataSource = new ExpressionEvaluator(PropertyDescriptorCollection, criteriaOperator, true).Filter(dataSource);
((IList)dataSource).Clear();
foreach (ListEditItem item in filteredDataSource)
((IList)dataSource).Add(item);
}
}
}
return dataSource;
}
/// <summary>
/// Evaluates a given expression and returns a list of members which exist in the expression.
///
/// If the expression is an empty string returns all available members at that location.
///
/// index is a zero-based absolute index into the file.
/// </summary>
public IEnumerable<MemberResult> GetMembersByIndex(string exprText, int index, GetMemberOptions options = GetMemberOptions.None) {
if (exprText.Length == 0) {
return GetAllAvailableMembersByIndex(index, options);
}
var scope = FindEnvironment(index);
var expr = Statement.GetExpression(GetAstFromText(exprText).Block);
if (expr == null) {
return new MemberResult[0];
}
if (expr is ConstantWrapper && ((ConstantWrapper)expr).Value is int) {
// no completions on integer ., the user is typing a float
return new MemberResult[0];
}
var unit = GetEvalAnalysisUnit(scope);
var lookup = new ExpressionEvaluator(unit, scope).Evaluate(expr);
return GetMemberResults(lookup, scope, options);
}
static KeyValuePairList <JoinType, Expression> ResolveJoinInfo(LambdaExpression joinInfoExp)
{
/*
* Usage:
* var view = context.JoinQuery<User, City, Province, User, City>((user, city, province, user1, city1) => new object[]
* {
* JoinType.LeftJoin, user.CityId == city.Id,
* JoinType.RightJoin, city.ProvinceId == province.Id,
* JoinType.InnerJoin,user.Id==user1.Id,
* JoinType.FullJoin,city.Id==city1.Id
* }).Select((user, city, province, user1, city1) => new { User = user, City = city, Province = province, User1 = user1, City1 = city1 });
*
* To resolve join infomation:
* JoinType.LeftJoin, user.CityId == city.Id index of joinType is 0
* JoinType.RightJoin, city.ProvinceId == province.Id index of joinType is 2
* JoinType.InnerJoin,user.Id==user1.Id index of joinType is 4
* JoinType.FullJoin,city.Id==city1.Id index of joinType is 6
*/
NewArrayExpression body = joinInfoExp.Body as NewArrayExpression;
if (body == null)
{
throw new ArgumentException(string.Format("Invalid join infomation '{0}'. The correct usage is like: {1}", joinInfoExp, "context.JoinQuery<User, City>((user, city) => new object[] { JoinType.LeftJoin, user.CityId == city.Id })"));
}
KeyValuePairList <JoinType, Expression> ret = new KeyValuePairList <JoinType, Expression>();
if ((joinInfoExp.Parameters.Count - 1) * 2 != body.Expressions.Count)
{
throw new ArgumentException(string.Format("Invalid join infomation '{0}'.", joinInfoExp));
}
for (int i = 0; i < joinInfoExp.Parameters.Count - 1; i++)
{
/*
* 0 0
* 1 2
* 2 4
* 3 6
* ...
*/
int indexOfJoinType = i * 2;
Expression joinTypeExpression = body.Expressions[indexOfJoinType];
object inputJoinType = ExpressionEvaluator.Evaluate(joinTypeExpression);
if (inputJoinType == null || inputJoinType.GetType() != typeof(JoinType))
{
throw new ArgumentException(string.Format("Not support '{0}', please pass correct type of 'Chloe.JoinType'.", joinTypeExpression));
}
/*
* The next expression of join type must be join condition.
*/
Expression joinCondition = body.Expressions[indexOfJoinType + 1].StripConvert();
if (joinCondition.Type != PublicConstants.TypeOfBoolean)
{
throw new ArgumentException(string.Format("Not support '{0}', please pass correct join condition.", joinCondition));
}
ParameterExpression[] parameters = joinInfoExp.Parameters.Take(i + 2).ToArray();
List <Type> typeArguments = parameters.Select(a => a.Type).ToList();
typeArguments.Add(PublicConstants.TypeOfBoolean);
Type delegateType = Utils.GetFuncDelegateType(typeArguments.ToArray());
LambdaExpression lambdaOfJoinCondition = Expression.Lambda(delegateType, joinCondition, parameters);
ret.Add((JoinType)inputJoinType, lambdaOfJoinCondition);
}
return(ret);
}
public void SetUp()
{
engine = new ExpressionEvaluator();
generator = new Random();
}
public void TestRepeaterCalculation()
{
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
ApplicationDataPath path = new ApplicationDataPath();
path.Append("key4");
path.First().Index = 0;
Assert.AreEqual(50, evaluator.Evaluate<int>("{%child1%} - {%child2%}", path));
path.First().Index = 1;
Assert.AreEqual(150, evaluator.Evaluate<int>("{%child1%} - {%child2%}", path));
}
/// <summary>
/// Handles the ExecuteCode event of the PrepareDynamicResolution CodeActivity.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void PrepareDynamicGrammarResolution_ExecuteCode(object sender, EventArgs e)
{
Logger.Instance.WriteMethodEntry(EventIdentifier.UpdateResourcesForEachDynamicStringForResolutionInitialized);
this.DynamicStringsForResolution = new List <string>(); // clear any previous values
try
{
// Load resolved value expressions to the expression evaluator
foreach (string key in this.ValueExpressions.Keys)
{
this.ActivityExpressionEvaluator.LookupCache[key] = this.ValueExpressions[key];
}
var newUpdates = new List <Definition>();
// Clear the variable cache for the expression evaluator
List <string> variables = this.ActivityExpressionEvaluator.VariableCache.Keys.ToList();
foreach (string variable in variables)
{
this.ActivityExpressionEvaluator.VariableCache[variable] = null;
}
foreach (Definition updateDefinition in this.updates)
{
// Determine if we are targeting a variable
// If so, publish the variable
bool targetVariable = ExpressionEvaluator.DetermineParameterType(updateDefinition.Right) == ParameterType.Variable;
if (targetVariable)
{
object resolved = this.ActivityExpressionEvaluator.ResolveExpression(updateDefinition.Left);
this.ActivityExpressionEvaluator.PublishVariable(updateDefinition.Right, resolved, UpdateMode.Modify);
}
}
foreach (Definition updateDefinition in this.updates)
{
// Resolve the source expression, including any functions or concatenation,
// to retrieve the typed value that should be assigned to the target attribute
object resolved = this.ActivityExpressionEvaluator.ResolveExpression(updateDefinition.Left);
if (resolved is string)
{
string updateDefinitionLeft = resolved as string;
newUpdates.Add(new Definition(updateDefinitionLeft, updateDefinition.Right, updateDefinition.Check));
if (!this.ActivityExpressionEvaluator.ParseIfExpression(updateDefinitionLeft))
{
this.DynamicStringsForResolution.Add(updateDefinitionLeft);
}
}
else
{
newUpdates.Add(updateDefinition);
}
}
this.updates = newUpdates;
}
finally
{
Logger.Instance.WriteMethodExit(EventIdentifier.UpdateResourcesForEachDynamicStringForResolutionInitialized, "DynamicStringsForResolution Count: '{0}'.", this.DynamicStringsForResolution.Count);
}
}
protected override bool ContextIsSatisfied(ExpressionEvaluator evaluator, TextArea textArea)
{
return(textArea.IsInString());
}
public TypingTypeInfoFinalizer(ExpressionEvaluator eval, Node node, AnalysisUnit unit)
{
_eval = eval;
_node = node;
_unit = unit;
}
public virtual object Insert <TEntity>(Expression <Func <TEntity> > body)
{
Utils.CheckNull(body);
TypeDescriptor typeDescriptor = TypeDescriptor.GetDescriptor(typeof(TEntity));
EnsureEntityHasPrimaryKey(typeDescriptor);
MappingMemberDescriptor keyMemberDescriptor = typeDescriptor.PrimaryKey;
MappingMemberDescriptor autoIncrementMemberDescriptor = typeDescriptor.AutoIncrement;
Dictionary <MemberInfo, Expression> insertColumns = InitMemberExtractor.Extract(body);
DbInsertExpression e = new DbInsertExpression(typeDescriptor.Table);
object keyVal = null;
foreach (var kv in insertColumns)
{
MemberInfo key = kv.Key;
MappingMemberDescriptor memberDescriptor = typeDescriptor.TryGetMappingMemberDescriptor(key);
if (memberDescriptor == null)
{
throw new ChloeException(string.Format("The member '{0}' does not map any column.", key.Name));
}
if (memberDescriptor == autoIncrementMemberDescriptor)
{
throw new ChloeException(string.Format("Could not insert value into the identity column '{0}'.", memberDescriptor.Column.Name));
}
if (memberDescriptor.IsPrimaryKey)
{
object val = ExpressionEvaluator.Evaluate(kv.Value);
if (val == null)
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", memberDescriptor.MemberInfo.Name));
}
else
{
keyVal = val;
e.InsertColumns.Add(memberDescriptor.Column, DbExpression.Parameter(keyVal));
continue;
}
}
e.InsertColumns.Add(memberDescriptor.Column, typeDescriptor.Visitor.Visit(kv.Value));
}
//主键为空并且主键又不是自增列
if (keyVal == null && keyMemberDescriptor != autoIncrementMemberDescriptor)
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", keyMemberDescriptor.MemberInfo.Name));
}
if (keyMemberDescriptor != autoIncrementMemberDescriptor)
{
this.ExecuteSqlCommand(e);
return(keyVal);
}
IDbExpressionTranslator translator = this.DbContextServiceProvider.CreateDbExpressionTranslator();
List <DbParam> parameters;
string sql = translator.Translate(e, out parameters);
sql = string.Concat(sql, ";", this.GetSelectLastInsertIdClause());
//SELECT @@IDENTITY 返回的是 decimal 类型
object retIdentity = this.Session.ExecuteScalar(sql, parameters.ToArray());
if (retIdentity == null || retIdentity == DBNull.Value)
{
throw new ChloeException("Unable to get the identity value.");
}
retIdentity = ConvertIdentityType(retIdentity, autoIncrementMemberDescriptor.MemberInfoType);
return(retIdentity);
}
/// <summary>
/// Initializes a new instance of the <see cref="Expression"/> class.
/// Expression constructor.
/// </summary>
/// <param name="evaluator">Information about how to validate and evaluate expression.</param>
/// <param name="children">Child expressions.</param>
public Expression(ExpressionEvaluator evaluator, params Expression[] children)
{
Evaluator = evaluator;
Children = children;
}
/// <summary>
/// Validates the inputs. Returns true if all of the UI controls contain valid values. Otherwise, returns false.
/// </summary>
/// <returns>true if all of the UI controls contain valid values. Otherwise, false.</returns>
public override bool ValidateInputs()
{
Logger.Instance.WriteMethodEntry();
try
{
if (!this.controller.ValidateInputs())
{
return(false);
}
ExpressionEvaluator evaluator = new ExpressionEvaluator();
switch (GetInputType(this.inputType.Value))
{
case PowerShellInputType.Parameters:
foreach (DefinitionListing parameter in this.parameters.DefinitionListings.Where(parameter => parameter.Active))
{
if (parameter.Definition == null)
{
// If a value is missing for parameter name or value expression, the definition
// will be null and the listing fails validation
this.controller.ValidationError = ActivitySettings.ScriptParameterDefintionValidationError;
return(false);
}
// Attempt to parse the value expression
try
{
evaluator.ParseExpression(parameter.Definition.Right);
}
catch (WorkflowActivityLibraryException ex)
{
this.controller.ValidationError = ex.Message;
return(false);
}
}
break;
case PowerShellInputType.Arguments:
foreach (DefinitionListing argument in this.arguments.DefinitionListings.Where(argument => argument.Active))
{
if (string.IsNullOrEmpty(argument.State.Left))
{
// If a value is missing for the expression, fail validation
this.controller.ValidationError = ActivitySettings.ScriptArgumentValidationError;
return(false);
}
// Attempt to parse the value expression
try
{
evaluator.ParseExpression(argument.State.Left);
}
catch (WorkflowActivityLibraryException ex)
{
this.controller.ValidationError = ex.Message;
return(false);
}
}
break;
}
try
{
if (!string.IsNullOrEmpty(this.activityExecutionCondition.Value))
{
evaluator.ParseExpression(this.activityExecutionCondition.Value);
// Verify that the activity execution condition resolves to a Boolean value
if (!evaluator.IsBooleanExpression(this.activityExecutionCondition.Value))
{
this.controller.ValidationError = ActivitySettings.ActivityExecutionConditionValidationError;
return(false);
}
}
}
catch (WorkflowActivityLibraryException ex)
{
this.controller.ValidationError = ex.Message;
return(false);
}
if (this.impersonatePowerShellUser.Value)
{
if (string.IsNullOrEmpty(this.powerShellUser.Value) ||
string.IsNullOrEmpty(this.powerShellUserPassword.Value))
{
this.controller.ValidationError = ActivitySettings.PowerShellImpersonationSettingsValidationError;
return(false);
}
}
if (!string.IsNullOrEmpty(this.powerShellUser.Value))
{
var powerShellUserIsExpression = evaluator.ParseIfExpression(this.powerShellUser.Value);
if (this.impersonatePowerShellUser.Value && !powerShellUserIsExpression)
{
if (!this.powerShellUser.Value.Contains(@"\") && !this.powerShellUser.Value.Contains("@"))
{
this.controller.ValidationError = ActivitySettings.PowerShellUserFormatValidationError;
return(false);
}
}
if (string.IsNullOrEmpty(this.powerShellUserPassword.Value))
{
this.controller.ValidationError = ActivitySettings.PowerShellUserPasswordValidationError;
return(false);
}
// Limited value in this check as the code runs under the context of submitter instead of FIMService plus
// code run on the Portal Server which may not be co-located with FIMService server.
////try
////{
//// ProtectedData.DecryptData(this.powerShellUserPassword.Value);
////}
////catch (WorkflowActivityLibraryException ex)
////{
//// this.controller.ValidationError = ex.Message;
//// return false;
////}
}
// If no errors were found, clear any validation error and return true
this.controller.ValidationError = string.Empty;
return(true);
}
catch (Exception e)
{
Logger.Instance.ReportError(e);
throw;
}
finally
{
Logger.Instance.WriteMethodExit();
}
}
public void Test_AsmSourceTools_Evaluate_1()
{
{
ulong i = 0ul;
string s = i + "";
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 0ul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 0ul;
string s = i.ToString("X") + "h";
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 1ul;
string s = i.ToString("X") + "h";
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 1ul;
string s = "0x" + i.ToString("X");;
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 1ul;
string s = i.ToString("X") + "h";
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 0xFFul;
string s = "0x" + i.ToString("X");;
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 0xFFul;
string s = i.ToString("X") + "h";
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(8, NBits, s);
}
{
ulong i = 0x100ul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(16, NBits, s);
}
{
ulong i = 0xFFFFul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(16, NBits, s);
}
{
ulong i = 0x10000ul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(32, NBits, s);
}
{
ulong i = 0xFFFFFFFFul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(32, NBits, s);
}
{
ulong i = 0x100000000ul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid, "could not parse: s=" + s);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(64, NBits, s);
}
{
ulong i = 0xFFFFFFFFFFFFFFFFul;
string s = "0x" + i.ToString("X");
(bool Valid, ulong Value, int NBits) = ExpressionEvaluator.Evaluate_Constant(s);
Assert.IsTrue(Valid);
Assert.AreEqual(i, Value, s);
Assert.AreEqual(64, NBits, s);
}
}
private async void CalculateButton_Click(object sender, RoutedEventArgs e)
{
CalculateButton.IsEnabled = false;
CancelButton.IsEnabled = true;
ExpressionEvaluator evaluator = new ExpressionEvaluator()
{
OptionScriptNeedSemicolonAtTheEndOfLastExpression = NeedSemicolonAtTheEndCheckBox.IsChecked.GetValueOrDefault(),
};
if (UseCachesCheckbox.IsChecked ?? false)
{
evaluator.CacheTypesResolutions = true;
}
evaluator.Namespaces.Add("System.Windows");
evaluator.Namespaces.Add("System.Diagnostics");
evaluator.EvaluateVariable += Evaluator_EvaluateVariable;
evaluator.EvaluateFunction += Evaluator_EvaluateFunction;
Stopwatch stopWatch = new Stopwatch();
try
{
string script = evaluator.RemoveComments(ScriptTextBox.Text);
string sIteration = IterationsTextBox.Text;
Exception exception = null;
cancellationTokenSource = new CancellationTokenSource();
cancellationTokenSource.Token.ThrowIfCancellationRequested();
string result = await Task.Run(() =>
{
if (!int.TryParse(sIteration, out int iterations))
{
iterations = 1;
}
iterations = Math.Max(0, iterations);
stopWatch.Start();
try
{
using (cancellationTokenSource.Token.Register(Thread.CurrentThread.Abort))
{
string innerResult = "null or void";
for (int i = 0; i < iterations; i++)
{
innerResult = evaluator.ScriptEvaluate(script)?.ToString() ?? "null or void";
}
return(innerResult);
}
}
catch (Exception innerException)
{
exception = innerException;
return(null);
}
finally
{
stopWatch.Stop();
}
}, cancellationTokenSource.Token).ConfigureAwait(true);
if (exception == null)
{
ResultTextBlock.Text = result;
}
else
{
throw exception;
}
}
catch (Exception exception)
{
ResultTextBlock.Text = exception.Message;
}
ExecutionTimeTextBlock.Text = $"Execution time : {stopWatch.Elapsed}";
evaluator.EvaluateVariable -= Evaluator_EvaluateVariable;
CalculateButton.IsEnabled = true;
CancelButton.IsEnabled = false;
}
public void TestAllowMixedSlashesAndQuotes()
{
this.postedData.Add("mixed", @"Top 'o the morning to ye, \iApply!");
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
Assert.AreEqual(@"Top 'o the morning to ye, \iApply!", evaluator.Evaluate<string>("if('{%mixed%}' != 0, '{%mixed%}', '')"));
}
/// <summary>
/// Gets the variables the given expression evaluates to. Variables include parameters, locals, and fields assigned on classes, modules and instances.
///
/// Variables are classified as either definitions or references. Only parameters have unique definition points - all other types of variables
/// have only one or more references.
/// </summary>
public IEnumerable <IAnalysisVariable> GetVariables(string exprText, int lineNumber)
{
var expr = GetExpressionFromText(exprText);
var scopes = FindScopes(lineNumber);
var eval = new ExpressionEvaluator(_unit.CopyForEval(), FindScopes(lineNumber).ToArray());
NameExpression name = expr as NameExpression;
if (name != null)
{
for (int i = scopes.Count - 1; i >= 0; i--)
{
VariableDef def;
if (IncludeScope(scopes, i, lineNumber) && scopes[i].Variables.TryGetValue(name.Name, out def))
{
foreach (var res in ToVariables(def))
{
yield return(res);
}
if (scopes[i] is FunctionScope)
{
// if this is a parameter or a local indicate any values which we know are assigned to it.
foreach (var type in def.Types)
{
if (type.Location != null)
{
yield return(new AnalysisVariable(VariableType.Value, type.Location));
}
}
}
else if (scopes[i] is ModuleScope)
{
foreach (var type in def.Types)
{
if (type.Location != null)
{
yield return(new AnalysisVariable(VariableType.Definition, type.Location));
}
foreach (var reference in type.References)
{
yield return(new AnalysisVariable(VariableType.Reference, reference));
}
}
}
}
}
var variables = _unit.ProjectState.BuiltinModule.GetDefinitions(name.Name);
foreach (var referenceable in variables)
{
foreach (var res in ToVariables(referenceable))
{
yield return(res);
}
}
}
MemberExpression member = expr as MemberExpression;
if (member != null)
{
var objects = eval.Evaluate(member.Target);
foreach (var v in objects)
{
var container = v as IReferenceableContainer;
if (container != null)
{
var defs = container.GetDefinitions(member.Name);
foreach (var def in defs)
{
foreach (var reference in def.Definitions)
{
yield return(new AnalysisVariable(VariableType.Definition, new LocationInfo(reference.Key, reference.Value.Line, reference.Value.Column, reference.Value.Length)));
}
foreach (var reference in def.References)
{
yield return(new AnalysisVariable(VariableType.Reference, new LocationInfo(reference.Key, reference.Value.Line, reference.Value.Column, reference.Value.Length)));
}
}
}
}
}
}
public void TestAllowQuotes()
{
this.postedData.Add("quotes", @"O'Malley");
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
Assert.AreEqual("O'Malley", evaluator.Evaluate<string>("if('{%quotes%}' != 0, '{%quotes%}', '')"));
}
//, = null, CastedSpell spell = null public abstract object Evaluate(List <string> args, ExpressionEvaluator evaluator, Character player, Creature target, CastedSpell spell);
public ExpressionSimplifierVisitor()
: base(true, true)
{
evaluator = new ExpressionEvaluator();
}
private static IAnalysisSet FsReadDirSync(FunctionValue func, Node node, AnalysisUnit unit, IAnalysisSet @this, IAnalysisSet[] args) {
var call = node as CallNode;
if (call != null && call.Arguments.Length == 1) {
var ee = new ExpressionEvaluator(unit);
IAnalysisSet arraySet;
ReadDirSyncArrayValue array;
if (!unit.GetDeclaringModuleEnvironment().TryGetNodeValue(NodeEnvironmentKind.ArrayValue, call, out arraySet)) {
array = new ReadDirSyncArrayValue(
unit.ProjectEntry,
node
);
arraySet = array.SelfSet;
unit.GetDeclaringModuleEnvironment().AddNodeValue(NodeEnvironmentKind.ArrayValue, call, arraySet);
} else {
array = (ReadDirSyncArrayValue)arraySet.First().Value;
}
foreach (var path in ee.MergeStringLiterals(call.Arguments[0])) {
array.AddDirectoryMembers(unit, path);
}
return array.SelfSet;
}
return AnalysisSet.Empty;
}
/// <summary>
/// Handles the ExecuteCode event of the PrepareUpdate CodeActivity.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void PrepareUpdate_ExecuteCode(object sender, EventArgs e)
{
Logger.Instance.WriteMethodEntry(EventIdentifier.UpdateResourcesPrepareUpdateExecuteCode);
try
{
// Load resolved value expressions to the expression evaluator
foreach (string key in this.ValueExpressions.Keys)
{
this.ActivityExpressionEvaluator.LookupCache[key] = this.ValueExpressions[key];
}
// Clear the variable cache for the expression evaluator
List <string> variables = this.ActivityExpressionEvaluator.VariableCache.Keys.ToList();
foreach (string variable in variables)
{
this.ActivityExpressionEvaluator.VariableCache[variable] = null;
}
// Loop through each attribute update definition to build the
// update resource parameters which will be used to update each target resource
this.LookupUpdates = new List <UpdateLookupDefinition>();
foreach (Definition updateDefinition in this.updates)
{
// Resolve the source expression, including any functions or concatenation,
// to retrieve the typed value that should be assigned to the target attribute
object resolved = null;
if (!ExpressionEvaluator.IsExpression(updateDefinition.Left))
{
// This is a dynamic string for resolution already resolved
// so just retrive the value from cache directly
resolved = this.ActivityExpressionEvaluator.LookupCache[updateDefinition.Left];
}
else
{
resolved = this.ActivityExpressionEvaluator.ResolveExpression(updateDefinition.Left);
}
// Determine if we are targeting a variable
// If not, assume we are targeting an expression which should result in requests or update
// to the workflow dictionary
bool targetVariable = ExpressionEvaluator.DetermineParameterType(updateDefinition.Right) == ParameterType.Variable;
// Only create an update lookup definition if the value is not null, or if the
// update definition is configured to allow null values to be transferred to the target(s)
if (resolved == null && updateDefinition.Check)
{
if (targetVariable)
{
this.ActivityExpressionEvaluator.PublishVariable(updateDefinition.Right, null, UpdateMode.Modify);
}
else
{
this.LookupUpdates.Add(new UpdateLookupDefinition(updateDefinition.Right, null, UpdateMode.Modify));
}
}
else if (resolved != null)
{
if (resolved.GetType() == typeof(InsertedValuesCollection))
{
// If the resolved object is an InsertedValues collection, the source for the update definition includes the InsertValues function
// All associated values should be added to the target
foreach (object o in (InsertedValuesCollection)resolved)
{
if (targetVariable)
{
this.ActivityExpressionEvaluator.PublishVariable(updateDefinition.Right, o, UpdateMode.Insert);
}
else
{
this.LookupUpdates.Add(new UpdateLookupDefinition(updateDefinition.Right, o, UpdateMode.Insert));
}
}
}
else if (resolved.GetType() == typeof(RemovedValuesCollection))
{
// If the resolved object is a RemovedValues collection, the source for the update definition includes the RemoveValues function
// All associated values should be removed from the target
foreach (object o in (RemovedValuesCollection)resolved)
{
if (targetVariable)
{
this.ActivityExpressionEvaluator.PublishVariable(updateDefinition.Right, o, UpdateMode.Remove);
}
else
{
this.LookupUpdates.Add(new UpdateLookupDefinition(updateDefinition.Right, o, UpdateMode.Remove));
}
}
}
else
{
// For all other conditions, update the variable or build a new update request parameter for the target attribute
if (targetVariable)
{
this.ActivityExpressionEvaluator.PublishVariable(updateDefinition.Right, resolved, UpdateMode.Modify);
}
else
{
this.LookupUpdates.Add(new UpdateLookupDefinition(updateDefinition.Right, resolved, UpdateMode.Modify));
}
}
}
}
}
finally
{
Logger.Instance.WriteMethodExit(EventIdentifier.UpdateResourcesPrepareUpdateExecuteCode);
}
}
public override object Evaluate(List <string> args, ExpressionEvaluator evaluator, Creature player, Target target = null, CastedSpell spell = null, RollResults dice = null)
{
ExpectingArguments(args, 0);
return(GiveTargetFullDamage.ApplyDamage(args, evaluator, player, target, 0.5));
}
protected abstract bool ContextIsSatisfied(ExpressionEvaluator evaluator, TextArea textArea);
public ExpressionEvaluator <T, Z> Prop <Z>(Expression <Func <T, Z> > entityExpression)
{
var expEvaluator = new ExpressionEvaluator <T, Z>(this, entityExpression);
return(expEvaluator);
}
private void btnMakePredictions_Click(object sender, EventArgs e)
{
string[] vars = _model.Keys.ToArray();
_dtVariables = (DataTable)dgvVariables.DataSource;
if (_dtVariables == null)
return;
if (_dtVariables.Rows.Count < 1)
return;
dgvVariables.EndEdit();
_dtVariables.AcceptChanges();
dgvObs.EndEdit();
_dtObs = (DataTable)dgvObs.DataSource;
if (_dtObs != null)
_dtObs.AcceptChanges();
ExpressionEvaluator expEval = new ExpressionEvaluator();
DataTable dtPredictions = expEval.Evaluate(_modelExpression, _dtVariables);
_dtStats = GeneratePredStats(dtPredictions, _dtObs);
if (_dtStats == null)
return;
dgvStats.DataSource = _dtStats;
foreach (DataGridViewColumn dvgCol in dgvStats.Columns)
dvgCol.SortMode = DataGridViewColumnSortMode.NotSortable;
setViewOnGrid(dgvStats);
}
public void Visit(AssignmentNode assignmentNode)
{
SymbolType expressionType = new ExpressionTypeChecker(CurrentScope).GetType(assignmentNode.Expression);
ValueNode expressionValue;
switch (expressionType)
{
case SymbolType.Null:
expressionValue = null;
break;
case SymbolType.Float:
var floatEval = new ExpressionEvaluator <float>(new FloatCalculator(assignmentNode.Token));
assignmentNode.Expression.Accept(floatEval);
expressionValue = new FloatValueNode()
{
Value = floatEval.Result
};
break;
case SymbolType.String:
var stringEval = new ExpressionEvaluator <string>(new StringOperations(assignmentNode.Token));
assignmentNode.Expression.Accept(stringEval);
expressionValue = new StringNode()
{
Value = stringEval.Result
};
break;
case SymbolType.Integer:
var intEval = new ExpressionEvaluator <int>(new IntCalculator(assignmentNode.Token));
assignmentNode.Expression.Accept(intEval);
expressionValue = new FloatValueNode()
{
Value = intEval.Result
};
break;
case SymbolType.Array:
var arrayEval = new ExpressionEvaluator <ArrayNode>(new ArrayCalculator(assignmentNode.Token));
assignmentNode.Expression.Accept(arrayEval);
expressionValue = arrayEval.Result;
break;
case SymbolType.Exit:
var exitEval = new ExpressionEvaluator <ExitValueNode>(new ExitValueCalculator(assignmentNode.Token));
assignmentNode.Expression.Accept(exitEval);
expressionValue = exitEval.Result;
break;
case SymbolType.Identifier:
var idEval = new ExpressionEvaluator <ValueNode>(new NoOpCalculator <ValueNode>(assignmentNode.Token));
assignmentNode.Expression.Accept(idEval);
expressionValue = idEval.Result;
break;
case SymbolType.MemberAccess:
expressionValue = (ValueNode)assignmentNode.Expression;
break;
default:
throw new ArgumentOutOfRangeException();
}
assignmentNode.Expression = expressionValue;
VariableSymbolTableEntry entry = new VariableSymbolTableEntry(expressionValue, expressionType);
CurrentScope.AddOrUpdateSymbol(assignmentNode.Identifier, entry);
}
protected override bool ContextIsSatisfied(ExpressionEvaluator evaluator, TextArea textArea)
{
return(string.IsNullOrWhiteSpace(TextLeftOfTemplate) && string.IsNullOrWhiteSpace(TextRightOfTemplate));
}
private Expression Evaluate(Expression e)
{
Type type = e.Type;
// check for nullable converts & strip them
if (e.NodeType == ExpressionType.Convert)
{
var u = (UnaryExpression)e;
if (TypeHelper.GetNonNullableType(u.Operand.Type) == TypeHelper.GetNonNullableType(type))
{
e = ((UnaryExpression)e).Operand;
}
}
if (e.NodeType == ExpressionType.Call)
{
var m = e as MethodCallExpression;
if (m.Method.DeclaringType == typeof(SqlFunctions) && m.Method.Name == "Convert")
{
if (TypeHelper.GetNonNullableType(m.Arguments[0].Type) == TypeHelper.GetNonNullableType(type))
{
e = m.Arguments[0];
}
}
}
// if we now just have a constant, return it
if (e.NodeType == ExpressionType.Constant)
{
var ce = (ConstantExpression)e;
// if we've lost our nullable typeness add it back
if (e.Type != type && TypeHelper.GetNonNullableType(e.Type) == TypeHelper.GetNonNullableType(type))
{
e = ce = Expression.Constant(ce.Value, type);
}
return(e);
}
var me = e as MemberExpression;
if (me != null)
{
// member accesses off of constant's are common, and yet since these partial evals
// are never re-used, using reflection to access the member is faster than compiling
// and invoking a lambda
var ce = me.Expression as ConstantExpression;
if (ce != null)
{
return(Expression.Constant(me.Member.Get(ce.Value), type));
}
}
if (type.IsValueType)
{
e = Expression.Convert(e, typeof(object));
}
Expression <Func <object> > lambda = Expression.Lambda <Func <object> >(e);
#if NOREFEMIT
Func <object> fn = ExpressionEvaluator.CreateDelegate(lambda);
#else
Func <object> fn = lambda.Compile();
#endif
var value = fn();
return(Expression.Constant(value, type));
}
private static bool fit(object targetObject, string criteria)
{
Type objectType = targetObject.GetType();
var wrapper = new LocalizedCriteriaWrapper(objectType, criteria);
wrapper.UpdateParametersValues();
var descriptor = new EvaluatorContextDescriptorDefault(objectType);
var evaluator = new ExpressionEvaluator(descriptor, wrapper.CriteriaOperator);
return evaluator.Fit(targetObject);
}
/// <summary>
/// Give values from the source data for all variable names in the expression.
/// </summary>
/// <param name="expression">The expression evaluator.</param>
/// <param name="sourceData">The source data.</param>
private void FillVariableNamesInExpression(ExpressionEvaluator expression, DataTable sourceData)
{
var simulationData = new List <Data>();
foreach (var variable in expression.Variables)
{
if (simulationData.Find(data => data.Name == variable.m_name) == null)
{
simulationData.Add(new Data(sourceData, variable.m_name));
}
}
// Need to get a list of common values for the key across the datasets.
IEnumerable <object> keyValues = null;
foreach (var dataset in simulationData)
{
if (keyValues == null)
{
keyValues = dataset.GetValues(FieldNameToMatchOn);
}
else
{
keyValues = keyValues.Intersect(dataset.GetValues(FieldNameToMatchOn));
}
}
// Create a new data set with the key field.
var newTable = new DataTable(Name);
DataTableUtilities.AddColumnOfObjects(newTable, FieldNameToMatchOn, keyValues.ToArray());
// Add all the double fields into the table.
foreach (DataColumn column in sourceData.Columns)
{
if (column.DataType == typeof(double) && column.ColumnName != FieldNameToMatchOn)
{
newTable.Columns.Add(column.ColumnName, typeof(double));
}
}
// Get each dataset to return
foreach (DataColumn column in sourceData.Columns)
{
if (column.DataType == typeof(double) && column.ColumnName != FieldNameToMatchOn)
{
var expressionVariables = new List <Symbol>();
foreach (var variable in expression.Variables)
{
var dataset = simulationData.Find(data => data.Name == variable.m_name);
var symbol = new Symbol();
symbol.m_name = variable.m_name;
symbol.m_values = dataset.GetDoubleValues(column.ColumnName);
if (symbol.m_values.Length != keyValues.Count())
{
throw new Exception($"Incorrect number of values for simulation {dataset.Name}");
}
expressionVariables.Add(symbol);
}
expression.Variables = expressionVariables;
expression.EvaluatePostfix();
if (expression.Error)
{
throw new Exception($"Error while evaluating expression for column {column.ColumnName}. {expression.ErrorDescription}");
}
// Add data to new data table.
DataTableUtilities.AddColumn(newTable, column.ColumnName, expression.Results);
}
}
// Give the new data table to the data store.
dataStore.Writer.WriteTable(newTable);
}
/// <summary>
/// Gets the variables the given expression evaluates to. Variables include parameters, locals, and fields assigned on classes, modules and instances.
///
/// Variables are classified as either definitions or references. Only parameters have unique definition points - all other types of variables
/// have only one or more references.
///
/// index is a 0-based absolute index into the file.
/// </summary>
public IEnumerable<IAnalysisVariable> GetVariablesByIndex(string exprText, int index) {
var scope = FindEnvironment(index);
var expr = Statement.GetExpression(GetAstFromText(exprText).Block);
var unit = GetEvalAnalysisUnit(scope);
Lookup name = expr as Lookup;
if (name != null) {
var defScope = scope.EnumerateTowardsGlobal.FirstOrDefault(s =>
s.ContainsVariable(name.Name));
if (defScope == null) {
defScope = scope.GlobalEnvironment;
}
return GetVariablesInScope(name, defScope).Distinct();
}
var member = expr as Member;
if (member != null) {
var eval = new ExpressionEvaluator(unit, scope);
var objects = eval.Evaluate(member.Root);
var refs = Enumerable.Empty<IAnalysisVariable>();
foreach (var v in objects) {
var container = v.Value as IReferenceableContainer;
if (container != null) {
refs = refs.Concat(ReferencablesToVariables(container.GetDefinitions(member.Name)));
}
}
return refs;
}
return Enumerable.Empty<IAnalysisVariable>();
}
public override object GetValue(string variableName, ExpressionEvaluator evaluator, Character player)
{
if (Enum.TryParse(variableName, out CreatureKinds result))
return result;
return null;
}
/// <summary>
/// Gets information about the available signatures for the given expression.
/// </summary>
/// <param name="exprText">The expression to get signatures for.</param>
/// <param name="index">The 0-based absolute index into the file.</param>
public IEnumerable<IOverloadResult> GetSignaturesByIndex(string exprText, int index) {
try {
var scope = FindEnvironment(index);
var unit = GetEvalAnalysisUnit(scope);
var eval = new ExpressionEvaluator(unit, scope);
var expr = Statement.GetExpression(GetAstFromText(exprText).Block);
if (expr == null ||
expr is ArrayLiteral) {
return Enumerable.Empty<IOverloadResult>();
}
var lookup = eval.Evaluate(expr);
var result = new HashSet<OverloadResult>(OverloadResultComparer.Instance);
foreach (var ns in lookup) {
if (ns.Value.Overloads != null) {
result.UnionWith(ns.Value.Overloads);
}
}
return result;
} catch (Exception) {
// TODO: log exception
return new[] { new SimpleOverloadResult("Unknown", "IntellisenseError_Sigs", new ParameterResult[0]) };
}
}
internal IList GetDataSource(object forObject) {
CriteriaOperator criteria = null;
if (Properties == null) return null;
IList propertyDataSource =
(Properties.DataSourceMemberInfo != null) &&
(GridEditingObject != null)
? Properties.DataSourceMemberInfo.GetValue(forObject) as IList
: null;
IList dataSource = new List<ImageComboBoxItem>();
if (propertyDataSource == null)
for (int i = 0; i < Properties.Items.Count; i++)
dataSource.Add(Properties.Items[i]);
else
for (int i = 0; i < Properties.Items.Count; i++) {
ImageComboBoxItem item = Properties.Items[i];
if (propertyDataSource.Contains(item.Value))
dataSource.Add(item);
}
string criteriaString = Properties.Model.DataSourceCriteria;
if (!String.IsNullOrEmpty(criteriaString))
criteria = CriteriaOperator.Parse(criteriaString);
if (!ReferenceEquals(criteria, null)) {
criteria.Accept(new EnumCriteriaParser(
Properties.PropertyMemberInfo.Name,
Properties.PropertyMemberInfo.MemberType));
ICollection filteredDataSource =
new ExpressionEvaluator(ImageComboBoxItemProperties, criteria, true).Filter(dataSource);
dataSource.Clear();
foreach (ImageComboBoxItem item in filteredDataSource)
dataSource.Add(item);
}
return dataSource;
}
public void TestSingleFormCalculation()
{
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
Assert.AreEqual(6, evaluator.Evaluate<int>("{%key3%} * {%key2%}"));
}
/// <summary>
/// Gets information about the available signatures for the given expression.
/// </summary>
/// <param name="exprText">The expression to get signatures for.</param>
/// <param name="location">The location in the file.</param>
/// <remarks>New in 2.2</remarks>
public IEnumerable<IOverloadResult> GetSignatures(string exprText, SourceLocation location)
{
try {
var scope = FindScope(location);
var unit = GetNearestEnclosingAnalysisUnit(scope);
var eval = new ExpressionEvaluator(unit.CopyForEval(), scope, mergeScopes: true);
using (var parser = Parser.CreateParser(new StringReader(exprText), _unit.ProjectState.LanguageVersion)) {
var expr = GetExpression(parser.ParseTopExpression().Body);
if (expr is ListExpression ||
expr is TupleExpression ||
expr is DictionaryExpression) {
return Enumerable.Empty<IOverloadResult>();
}
var lookup = eval.Evaluate(expr);
lookup = AnalysisSet.Create(lookup.Where(av => !(av is MultipleMemberInfo)).Concat(
lookup.OfType<MultipleMemberInfo>().SelectMany(mmi => mmi.Members)
));
var result = new HashSet<OverloadResult>(OverloadResultComparer.Instance);
// TODO: Include relevant type info on the parameter...
result.UnionWith(lookup
// Exclude constant values first time through
.Where(av => av.MemberType != PythonMemberType.Constant)
.SelectMany(av => av.Overloads ?? Enumerable.Empty<OverloadResult>())
);
if (!result.Any()) {
result.UnionWith(lookup
.Where(av => av.MemberType == PythonMemberType.Constant)
.SelectMany(av => av.Overloads ?? Enumerable.Empty<OverloadResult>()));
}
return result;
}
} catch (Exception ex) {
if (ex.IsCriticalException()) {
throw;
}
Debug.Fail(ex.ToString());
return GetSignaturesError;
}
}
public void TestAllowMultipleQuotes()
{
this.postedData.Add("multiplequotes", @"O''Malley'O'Laughlin");
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
Assert.AreEqual("O''Malley'O'Laughlin", evaluator.Evaluate<string>("if('{%multiplequotes%}' != 0, '{%multiplequotes%}', '')"));
}
public CountIf(ExpressionEvaluator evaluator)
{
Require.That(evaluator).Named("evaluator").IsNotNull();
_expressionEvaluator = evaluator;
}
public void TestAllowSlashes()
{
this.postedData.Add("slashes", @"\iApply");
ExpressionEvaluator evaluator = new ExpressionEvaluator(new Application(this.postedData));
Assert.AreEqual(@"\iApply", evaluator.Evaluate<string>("if('{%slashes%}' != 0, '{%slashes%}', '')"));
}
public override object Insert <TEntity>(Expression <Func <TEntity> > content, string table)
{
PublicHelper.CheckNull(content);
TypeDescriptor typeDescriptor = EntityTypeContainer.GetDescriptor(typeof(TEntity));
if (typeDescriptor.PrimaryKeys.Count > 1)
{
/* 对于多主键的实体，暂时不支持调用这个方法进行插入 */
throw new NotSupportedException(string.Format("Can not call this method because entity '{0}' has multiple keys.", typeDescriptor.Definition.Type.FullName));
}
PropertyDescriptor keyPropertyDescriptor = typeDescriptor.PrimaryKeys.FirstOrDefault();
Dictionary <MemberInfo, Expression> insertColumns = InitMemberExtractor.Extract(content);
DbTable explicitDbTable = null;
if (table != null)
{
explicitDbTable = new DbTable(table, typeDescriptor.Table.Schema);
}
DefaultExpressionParser expressionParser = typeDescriptor.GetExpressionParser(explicitDbTable);
DbInsertExpression insertExp = new DbInsertExpression(explicitDbTable ?? typeDescriptor.Table);
object keyVal = null;
foreach (var kv in insertColumns)
{
MemberInfo key = kv.Key;
PropertyDescriptor propertyDescriptor = typeDescriptor.TryGetPropertyDescriptor(key);
if (propertyDescriptor == null)
{
throw new ChloeException(string.Format("The member '{0}' does not map any column.", key.Name));
}
if (propertyDescriptor.IsAutoIncrement)
{
throw new ChloeException(string.Format("Could not insert value into the identity column '{0}'.", propertyDescriptor.Column.Name));
}
if (propertyDescriptor.HasSequence())
{
throw new ChloeException(string.Format("Can not insert value into the column '{0}', because it's mapping member has define a sequence.", propertyDescriptor.Column.Name));
}
if (propertyDescriptor.IsPrimaryKey)
{
object val = ExpressionEvaluator.Evaluate(kv.Value);
if (val == null)
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", propertyDescriptor.Property.Name));
}
else
{
keyVal = val;
insertExp.InsertColumns.Add(propertyDescriptor.Column, DbExpression.Parameter(keyVal, propertyDescriptor.PropertyType, propertyDescriptor.Column.DbType));
continue;
}
}
insertExp.InsertColumns.Add(propertyDescriptor.Column, expressionParser.Parse(kv.Value));
}
foreach (var item in typeDescriptor.PropertyDescriptors.Where(a => a.HasSequence()))
{
DbMethodCallExpression getNextValueForSequenceExp = PublicHelper.MakeNextValueForSequenceDbExpression(item);
insertExp.InsertColumns.Add(item.Column, getNextValueForSequenceExp);
}
if (keyPropertyDescriptor != null)
{
//主键为空并且主键又不是自增列
if (keyVal == null && !keyPropertyDescriptor.IsAutoIncrement && !keyPropertyDescriptor.HasSequence())
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", keyPropertyDescriptor.Property.Name));
}
}
if (keyPropertyDescriptor == null)
{
this.ExecuteNonQuery(insertExp);
return(keyVal); /* It will return null if an entity does not define primary key. */
}
if (!keyPropertyDescriptor.IsAutoIncrement && !keyPropertyDescriptor.HasSequence())
{
this.ExecuteNonQuery(insertExp);
return(keyVal);
}
IDbExpressionTranslator translator = this.DatabaseProvider.CreateDbExpressionTranslator();
List <DbParam> parameters;
string sql = translator.Translate(insertExp, out parameters);
if (keyPropertyDescriptor.IsAutoIncrement)
{
/* 自增 id 不能用 output inserted.Id 输出，因为如果表设置了触发器的话会报错 */
sql = string.Concat(sql, ";", this.GetSelectLastInsertIdClause());
}
else if (keyPropertyDescriptor.HasSequence())
{
insertExp.Returns.Add(keyPropertyDescriptor.Column);
}
object ret = this.Session.ExecuteScalar(sql, parameters.ToArray());
if (ret == null || ret == DBNull.Value)
{
throw new ChloeException("Unable to get the identity/sequence value.");
}
ret = PublicHelper.ConvertObjType(ret, typeDescriptor.AutoIncrement.PropertyType);
return(ret);
}
public void SetUp() => _sut = new T();
/// <summary>Parses the specified function.</summary>
/// <param name="fn">The function.</param>
/// <param name="ExpressionProperty">The expression property.</param>
private static void Parse(ExpressionEvaluator fn, string ExpressionProperty)
{
fn.Parse(ExpressionProperty.Trim());
fn.Infix2Postfix();
}
private static bool IsSpecialRequire(AnalysisUnit unit, CallNode n, ref IAnalysisSet res) {
bool hitLiteral = false;
if (n.Arguments.Length == 1) {
var ee = new ExpressionEvaluator(unit);
foreach (var name in ee.MergeStringLiterals(n.Arguments[0])) {
hitLiteral = true;
res = res.Union(
unit.Analyzer.Modules.RequireModule(
n,
unit,
name,
unit.DeclaringModuleEnvironment.Name
)
);
}
}
return hitLiteral;
}
public virtual object Insert <TEntity>(Expression <Func <TEntity> > content, string table)
{
Utils.CheckNull(content);
TypeDescriptor typeDescriptor = TypeDescriptor.GetDescriptor(typeof(TEntity));
if (typeDescriptor.PrimaryKeys.Count > 1)
{
/* 对于多主键的实体，暂时不支持调用这个方法进行插入 */
throw new NotSupportedException(string.Format("Can not call this method because entity '{0}' has multiple keys.", typeDescriptor.EntityType.FullName));
}
MappingMemberDescriptor keyMemberDescriptor = typeDescriptor.PrimaryKeys.FirstOrDefault();
MappingMemberDescriptor autoIncrementMemberDescriptor = typeDescriptor.AutoIncrement;
Dictionary <MemberInfo, Expression> insertColumns = InitMemberExtractor.Extract(content);
DbTable explicitDbTable = null;
if (table != null)
{
explicitDbTable = new DbTable(table, typeDescriptor.Table.Schema);
}
DefaultExpressionParser expressionParser = typeDescriptor.GetExpressionParser(explicitDbTable);
DbInsertExpression e = new DbInsertExpression(explicitDbTable ?? typeDescriptor.Table);
object keyVal = null;
foreach (var kv in insertColumns)
{
MemberInfo key = kv.Key;
MappingMemberDescriptor memberDescriptor = typeDescriptor.TryGetMappingMemberDescriptor(key);
if (memberDescriptor == null)
{
throw new ChloeException(string.Format("The member '{0}' does not map any column.", key.Name));
}
if (memberDescriptor == autoIncrementMemberDescriptor)
{
throw new ChloeException(string.Format("Could not insert value into the identity column '{0}'.", memberDescriptor.Column.Name));
}
if (memberDescriptor.IsPrimaryKey)
{
object val = ExpressionEvaluator.Evaluate(kv.Value);
if (val == null)
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", memberDescriptor.MemberInfo.Name));
}
else
{
keyVal = val;
e.InsertColumns.Add(memberDescriptor.Column, DbExpression.Parameter(keyVal));
continue;
}
}
e.InsertColumns.Add(memberDescriptor.Column, expressionParser.Parse(kv.Value));
}
if (keyMemberDescriptor != null)
{
//主键为空并且主键又不是自增列
if (keyVal == null && keyMemberDescriptor != autoIncrementMemberDescriptor)
{
throw new ChloeException(string.Format("The primary key '{0}' could not be null.", keyMemberDescriptor.MemberInfo.Name));
}
}
if (keyMemberDescriptor == null || keyMemberDescriptor != autoIncrementMemberDescriptor)
{
this.ExecuteSqlCommand(e);
return(keyVal); /* It will return null if an entity does not define primary key. */
}
IDbExpressionTranslator translator = this.DbContextServiceProvider.CreateDbExpressionTranslator();
List <DbParam> parameters;
string sql = translator.Translate(e, out parameters);
sql = string.Concat(sql, ";", this.GetSelectLastInsertIdClause());
//SELECT @@IDENTITY 返回的是 decimal 类型
object retIdentity = this.Session.ExecuteScalar(sql, parameters.ToArray());
if (retIdentity == null || retIdentity == DBNull.Value)
{
throw new ChloeException("Unable to get the identity value.");
}
retIdentity = ConvertIdentityType(retIdentity, autoIncrementMemberDescriptor.MemberInfoType);
return(retIdentity);
}
/// <summary>
/// Evaluates a given expression and returns a list of members which
/// exist in the expression.
///
/// If the expression is an empty string returns all available members
/// at that location.
/// </summary>
/// <param name="exprText">The expression to find members for.</param>
/// </param>
/// <param name="location">
/// The location in the file where the expression should be evaluated.
/// </param>
/// <remarks>New in 2.2</remarks>
public IEnumerable<MemberResult> GetMembers(
string exprText,
SourceLocation location,
GetMemberOptions options = GetMemberOptions.IntersectMultipleResults
)
{
if (exprText.Length == 0) {
return GetAllAvailableMembers(location, options);
}
var scope = FindScope(location);
var privatePrefix = GetPrivatePrefixClassName(scope);
var expr = Statement.GetExpression(GetAstFromText(exprText, privatePrefix).Body);
if (expr is ConstantExpression && ((ConstantExpression)expr).Value is int) {
// no completions on integer ., the user is typing a float
return Enumerable.Empty<MemberResult>();
}
var errorWalker = new ErrorWalker();
expr.Walk(errorWalker);
if (errorWalker.HasError) {
return null;
}
var unit = GetNearestEnclosingAnalysisUnit(scope);
var eval = new ExpressionEvaluator(unit.CopyForEval(), scope, mergeScopes: true);
IAnalysisSet lookup;
if (options.HasFlag(GetMemberOptions.NoMemberRecursion)) {
lookup = eval.EvaluateNoMemberRecursion(expr);
} else {
lookup = eval.Evaluate(expr);
}
return GetMemberResults(lookup, scope, options);
}
protected override bool ContextIsSatisfied(ExpressionEvaluator evaluator, TextArea textArea)
{
return(textArea.Selection.EndPosition.Line != textArea.Selection.StartPosition.Line);
}
/// <summary>
/// Gets the variables the given expression evaluates to. Variables
/// include parameters, locals, and fields assigned on classes, modules
/// and instances.
///
/// Variables are classified as either definitions or references. Only
/// parameters have unique definition points - all other types of
/// variables have only one or more references.
/// </summary>
/// <param name="exprText">The expression to find variables for.</param>
/// <param name="location">
/// The location in the file where the expression should be evaluated.
/// </param>
/// <remarks>New in 2.2</remarks>
public VariablesResult GetVariables(string exprText, SourceLocation location)
{
var scope = FindScope(location);
string privatePrefix = GetPrivatePrefixClassName(scope);
var ast = GetAstFromText(exprText, privatePrefix);
var expr = Statement.GetExpression(ast.Body);
var unit = GetNearestEnclosingAnalysisUnit(scope);
NameExpression name = expr as NameExpression;
IEnumerable<IAnalysisVariable> variables = Enumerable.Empty<IAnalysisVariable>();
if (name != null) {
var defScope = scope.EnumerateTowardsGlobal.FirstOrDefault(s =>
s.ContainsVariable(name.Name) && (s == scope || s.VisibleToChildren || IsFirstLineOfFunction(scope, s, location)));
if (defScope == null) {
variables = _unit.ProjectState.BuiltinModule.GetDefinitions(name.Name)
.SelectMany(ToVariables);
} else {
variables = GetVariablesInScope(name, defScope).Distinct();
}
} else {
MemberExpression member = expr as MemberExpression;
if (member != null && !string.IsNullOrEmpty(member.Name)) {
var eval = new ExpressionEvaluator(unit.CopyForEval(), scope, mergeScopes: true);
var objects = eval.Evaluate(member.Target);
foreach (var v in objects) {
var container = v as IReferenceableContainer;
if (container != null) {
variables = ReferencablesToVariables(container.GetDefinitions(member.Name));
break;
}
}
}
}
return new VariablesResult(variables, ast);
}
/// <summary>
/// Initializes a new instance of the <see cref="Expression"/> class.
/// Expression constructor.
/// </summary>
/// <param name="evaluator">Information about how to validate and evaluate expression.</param>
/// <param name="children">Child expressions.</param>
public Expression(ExpressionEvaluator evaluator, params Expression[] children)
{
Evaluator = evaluator ?? throw new ArgumentNullException(nameof(evaluator));
Children = children;
}
