public static CodegenExpression CastSafeFromObjectType(
Type targetType,
CodegenExpression value)
{
if (targetType == null) {
return ConstantNull();
}
if (targetType == typeof(object)) {
return value;
}
if (value is CodegenExpressionConstantNull) {
return value;
}
if ((value is CodegenExpressionConstant codegenExpressionConstant) &&
(codegenExpressionConstant.IsNull)) {
return value;
}
if (targetType == typeof(void)) {
throw new ArgumentException("Invalid void target type for cast");
}
if (targetType == typeof(int)) {
return ExprDotMethod(value, "AsInt32");
}
else if (targetType == typeof(int?)) {
return ExprDotMethod(value, "AsBoxedInt32");
}
else if (targetType == typeof(long)) {
return ExprDotMethod(value, "AsInt64");
}
else if (targetType == typeof(long?)) {
return ExprDotMethod(value, "AsBoxedInt64");
}
else if (targetType == typeof(short)) {
return ExprDotMethod(value, "AsInt16");
}
else if (targetType == typeof(short?)) {
return ExprDotMethod(value, "AsBoxedInt16");
}
else if (targetType == typeof(byte)) {
return ExprDotMethod(value, "AsByte");
}
else if (targetType == typeof(byte?)) {
return ExprDotMethod(value, "AsBoxedByte");
}
else if (targetType == typeof(decimal)) {
return ExprDotMethod(value, "AsDecimal");
}
else if (targetType == typeof(decimal?)) {
return ExprDotMethod(value, "AsBoxedDecimal");
}
else if (targetType == typeof(double)) {
return ExprDotMethod(value, "AsDouble");
}
else if (targetType == typeof(double?)) {
return ExprDotMethod(value, "AsBoxedDouble");
}
else if (targetType == typeof(float)) {
return ExprDotMethod(value, "AsFloat");
}
else if (targetType == typeof(float?)) {
return ExprDotMethod(value, "AsBoxedFloat");
}
else if (targetType == typeof(bool)) {
return ExprDotMethod(value, "AsBoolean");
}
else if (targetType == typeof(bool?)) {
return ExprDotMethod(value, "AsBoxedBoolean");
}
else if (targetType == typeof(DateTime)) {
return ExprDotMethod(value, "AsDateTime");
}
else if (targetType == typeof(DateTime?)) {
return ExprDotMethod(value, "AsBoxedDateTime");
}
else if (targetType == typeof(DateTimeOffset)) {
return ExprDotMethod(value, "AsDateTimeOffset");
}
else if (targetType == typeof(DateTimeOffset?)) {
return ExprDotMethod(value, "AsBoxedDateTimeOffset");
}
else if (targetType == typeof(FlexCollection)) {
return StaticMethod(typeof(FlexCollection), "Of", value);
}
else if (targetType == typeof(IDictionary<string, object>)) {
return StaticMethod(typeof(CompatExtensions), "AsStringDictionary", value);
}
else if (targetType == typeof(IDictionary<object, object>)) {
return StaticMethod(typeof(CompatExtensions), "AsObjectDictionary", value);
}
else if (targetType.IsGenericDictionary()) {
return Cast(targetType, value);
}
else if (targetType.IsArray()) {
var elementType = targetType.GetElementType();
return StaticMethod(typeof(CompatExtensions), "UnwrapIntoArray", new[] {elementType}, value);
}
else if (targetType.IsGenericList()) {
var elementType = GenericExtensions.GetCollectionItemType(targetType);
return StaticMethod(typeof(CompatExtensions), "UnwrapIntoList", new [] {elementType}, value);
}
else if (targetType.IsGenericSet()) {
var elementType = GenericExtensions.GetCollectionItemType(targetType);
return StaticMethod(typeof(CompatExtensions), "UnwrapIntoSet", new [] {elementType}, value);
}
else if (targetType == typeof(ICollection<object>)) {
return StaticMethod(typeof(TypeHelper), "AsObjectCollection", value);
}
else if (targetType.IsGenericCollection()) {
var elementType = GenericExtensions.GetCollectionItemType(targetType);
return Unwrap(elementType, value);
}
return Cast(targetType, value);
}
