/// <summary>
/// Initializes a new instance of the <see cref="DataBindingSetterBuilder"/> class.
/// </summary>
/// <param name="expressionType">The type of the bound expression.</param>
/// <param name="dataSourceType">The type of the data source to which the value is being bound.</param>
/// <param name="expression">The binding expression with which to bind the dependency property.</param>
public DataBindingSetterBuilder(Type expressionType, Type dataSourceType, String expression)
: base(dataSourceType)
{
this.boundType = expressionType;
this.delegateType = typeof(DataBindingSetter <>).MakeGenericType(expressionType);
CreateReturnTarget();
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var current = AddDataSourceReference();
var value = AddValueParameter();
if (current.Type.IsValueType)
{
return;
}
if (!AddValueAssignment(current, value, path))
{
return;
}
AddReturn();
AddReturnLabel();
var lambdaBody = Expression.Block(variables, expressions);
var lambda = Expression.Lambda(delegateType, lambdaBody, parameters);
lambdaExpression = lambda;
}
/// <summary>
/// Initializes a new instance of the <see cref="DataBindingSetterBuilder"/> class.
/// </summary>
/// <param name="expressionType">The type of the bound expression.</param>
/// <param name="dataSourceType">The type of the data source to which the value is being bound.</param>
/// <param name="expression">The binding expression with which to bind the dependency property.</param>
public DataBindingSetterBuilder(Type expressionType, Type dataSourceType, String expression)
: base(dataSourceType)
{
this.boundType = expressionType;
this.delegateType = typeof(DataBindingSetter <>).MakeGenericType(expressionType);
#if CODE_GEN_ENABLED
CreateReturnTarget();
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var current = AddDataSourceReference();
var value = AddValueParameter();
if (current.Type.IsValueType)
{
return;
}
if (!AddValueAssignment(current, value, path))
{
return;
}
AddReturn();
AddReturnLabel();
var lambdaBody = Expression.Block(variables, expressions);
var lambda = Expression.Lambda(delegateType, lambdaBody, parameters);
lambdaExpression = lambda;
#else
var expParamDataSource = Expression.Parameter(typeof(Object), "dataSource");
var expParamValue = Expression.Parameter(boundType, "value");
var implMethod = typeof(DataBindingSetterBuilder).GetMethod(nameof(ReflectionBasedImplementation),
BindingFlags.NonPublic | BindingFlags.Static);
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var property = dataSourceType.GetProperty(path);
if (!property.CanWrite)
{
return;
}
var expImplMethodCall = Expression.Call(implMethod,
Expression.Constant(property),
Expression.Convert(expParamDataSource, typeof(Object)),
Expression.Convert(expParamValue, typeof(Object)));
lambdaExpression = Expression.Lambda(delegateType, expImplMethodCall, expParamDataSource, expParamValue);
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="DataBindingGetterBuilder"/> class.
/// </summary>
/// <param name="expressionType">The type of the bound expression.</param>
/// <param name="dataSourceType">The type of the data source to which the expression is being bound.</param>
/// <param name="expression">The binding expression with which to bind the dependency property.</param>
public DataBindingGetterBuilder(Type expressionType, Type dataSourceType, String expression)
: base(dataSourceType)
{
this.delegateType = typeof(DataBindingGetter <>).MakeGenericType(expressionType);
#if CODE_GEN_ENABLED
CreateReturnTarget(expressionType);
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var current = AddDataSourceReference();
current = AddSafeReference(expression, current, path);
var result = Expression.Convert(current, expressionType);
AddReturn(result);
AddReturnLabel();
var lambdaBody = Expression.Block(variables, expressions);
var lambda = Expression.Lambda(delegateType, lambdaBody, parameters);
lambdaExpression = lambda;
#else
var expParamDataSource = Expression.Parameter(typeof(Object), "dataSource");
var implMethod = typeof(DataBindingGetterBuilder).GetMethod(nameof(ReflectionBasedImplementation),
BindingFlags.NonPublic | BindingFlags.Static);
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var property = dataSourceType.GetProperty(path);
if (!property.CanRead)
{
return;
}
var expImplMethodCall = Expression.Call(implMethod,
Expression.Constant(property),
Expression.Convert(expParamDataSource, typeof(Object)));
lambdaExpression = Expression.Lambda(delegateType,
Expression.Convert(
Expression.Convert(expImplMethodCall, property.PropertyType),
expressionType), expParamDataSource);
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="BoundEventBuilder"/> type.
/// </summary>
/// <param name="dataSource">The data source to which the event is being bound.</param>
/// <param name="dataSourceType">The type of the data source to which the expression is being bound.</param>
/// <param name="delegateType">The type of delegate that will be created to bind to the event.</param>
/// <param name="expression">The binding expression that represents the method to bind to the event.</param>
public BoundEventBuilder(Object dataSource, Type dataSourceType, Type delegateType, String expression)
: base(dataSourceType)
{
CreateParameters(delegateType);
CreateReturnTarget();
var path = BindingExpressions.GetBindingMemberPathPart(expression, false);
var current = AddDataSourceReference(expression, dataSource, dataSourceType);
current = AddMethodInvocation(expression, current, path);
AddReturn();
AddReturnLabel();
var lambdaBody = Expression.Block(variables, expressions);
var lambda = Expression.Lambda(delegateType, lambdaBody, parameters);
lambdaExpression = lambda;
}
/// <summary>
/// Initializes a new instance of the <see cref="DataBindingGetterBuilder"/> class.
/// </summary>
/// <param name="expressionType">The type of the bound expression.</param>
/// <param name="dataSourceType">The type of the data source to which the expression is being bound.</param>
/// <param name="expression">The binding expression with which to bind the dependency property.</param>
public DataBindingGetterBuilder(Type expressionType, Type dataSourceType, String expression)
: base(dataSourceType)
{
this.delegateType = typeof(DataBindingGetter <>).MakeGenericType(expressionType);
CreateReturnTarget(expressionType);
var path = BindingExpressions.GetBindingMemberPathPart(expression);
var current = AddDataSourceReference();
current = AddSafeReference(expression, current, path);
var result = Expression.Convert(current, expressionType);
AddReturn(result);
AddReturnLabel();
var lambdaBody = Expression.Block(variables, expressions);
var lambda = Expression.Lambda(delegateType, lambdaBody, parameters);
lambdaExpression = lambda;
}