public static object?Create(string image, ExpressionBuilderOptions options)
{
builderOptions = options;
LiteralElement?element = CreateSingle(image);
if (element != null)
{
return(element);
}
element = CreateDecimal(image);
if (element != null)
{
return(element);
}
element = CreateDouble(image);
if (element != null)
{
return(element);
}
element = CreateImplicitReal(image);
return(element);
}
/// <summary>
/// Creates a new namespace import with a given namespace name
/// </summary>
/// <param name="importNamespace">The name of the namespace to import</param>
/// <param name="options"></param>
public NamespaceImport(string importNamespace, ExpressionBuilderOptions options) : base(options)
{
if (importNamespace == null)
{
throw new ArgumentNullException(nameof(importNamespace));
}
if (importNamespace.Length == 0)
{
throw new ArgumentException(GeneralErrors.InvalidNamespaceName);
}
_namespace = importNamespace;
_imports = new List <ImportBase>();
}
public static LiteralElement?CreateFromInteger(string image, ExpressionBuilderOptions options)
{
builderOptions = options;
LiteralElement element = CreateSingle(image);
if (element != null)
{
return(element);
}
element = CreateDecimal(image);
if (element != null)
{
return(element);
}
if (builderOptions.IntegerAsDouble)
{
return(DoubleLiteralElement.Parse(image));
}
return(null);
}
public void CopyFrom(ExpressionBuilderOptions other)
{
this.LiftMemberAccessToNull = other.LiftMemberAccessToNull;
}
public void CopyFrom(ExpressionBuilderOptions other)
{
this.LiftMemberAccessToNull = other.LiftMemberAccessToNull;
}
protected ExpressionBuilderBase(Type itemType)
{
this.itemType = itemType;
options = new ExpressionBuilderOptions();
}
public TypeImport(Type importType, ExpressionBuilderOptions options) : this(importType, false, options)
{
Options.AssertTypeIsAccessible(Target);
}
/// <summary>
/// Attempt to find the first type of integer that a number can fit into
/// </summary>
/// <param name="image"></param>
/// <param name="isHex"></param>
/// <param name="negated"></param>
/// <param name="options"></param>
/// <returns></returns>
public static LiteralElement Create(string image, bool isHex, bool negated, ExpressionBuilderOptions options)
{
const StringComparison comparison = StringComparison.OrdinalIgnoreCase;
if (isHex == false)
{
// Create a real element if required
var realElement = RealLiteralElement.CreateFromInteger(image, options);
if (realElement != null)
{
return(realElement);
}
}
var hasUSuffix = image.EndsWith("u", comparison) & !image.EndsWith("lu", comparison);
var hasLSuffix = image.EndsWith("l", comparison) & !image.EndsWith("ul", comparison);
var hasUlSuffix = image.EndsWith("ul", comparison) | image.EndsWith("lu", comparison);
var hasSuffix = hasUSuffix | hasLSuffix | hasUlSuffix;
LiteralElement constant;
var numStyles = NumberStyles.Integer;
if (isHex)
{
numStyles = NumberStyles.AllowHexSpecifier;
image = image.Remove(0, 2);
}
if (hasSuffix == false)
{
// If the literal has no suffix, it has the first of these types in which its value can be represented: int, uint, long, ulong.
constant = Int32LiteralElement.TryCreate(image, isHex, negated);
if (constant != null)
{
return(constant);
}
constant = UInt32LiteralElement.TryCreate(image, numStyles);
if (constant != null)
{
return(constant);
}
constant = Int64LiteralElement.TryCreate(image, isHex, negated);
if (constant != null)
{
return(constant);
}
return(new UInt64LiteralElement(image, numStyles));
}
if (hasUSuffix)
{
image = image.Remove(image.Length - 1);
// If the literal is suffixed by U or u, it has the first of these types in which its value can be represented: uint, ulong.
constant = UInt32LiteralElement.TryCreate(image, numStyles);
return(constant ?? new UInt64LiteralElement(image, numStyles));
}
if (hasLSuffix)
{
// If the literal is suffixed by L or l, it has the first of these types in which its value can be represented: long, ulong.
image = image.Remove(image.Length - 1);
constant = Int64LiteralElement.TryCreate(image, isHex, negated);
return(constant ?? new UInt64LiteralElement(image, numStyles));
}
// If the literal is suffixed by UL, Ul, uL, ul, LU, Lu, lU, or lu, it is of type ulong.
Debug.Assert(true, "expecting ul suffix");
image = image.Remove(image.Length - 2);
return(new UInt64LiteralElement(image, numStyles));
}
internal ImportCollection(ExpressionBuilderOptions options)
{
this.options = options;
RootImport = new NamespaceImport("true", this.options);
ImportOwner(typeof(object));
}
