The Mathworks, Inc.

David A Foti

Jennifer Black

Charles Gary Nylander

Joseph F Hicklin

Andrew T Campbell

David M Saxe

David Hruska

Cheryl L Jones

Fazil Peermohammed

Ebrahim Mehran Mestchian

Peter S Szpak

Matthew J Englehart

Halldor Narfi Stefansson

Vijaya Raghavan

Paul Jackson

Yao Ren

Thomas Albert Bryan

Bryan T White

Michelle T Hirsch

Shailesh Shashikant Nirgudkar

Marc A Greenberg

Julia Palmateer Wall

Xiao Xu

Roy Mathew

Emmanuel Roy

Julia P Wall

Vivek Bhownani

Dekun Pei

Jianhao Du

Jianzhong Xue

Alexander C Feinman

Antoine Requet

Alexander Feinman

Systems and methods for function argument checking are disclosed. The systems and methods can use declarations and validation instructions based on the declarations. Validation instructions for a function can be generated automatically from a declaration for the function. The validation instructions can be executed in response to invocation of the function. The validation instructions can include instructions for determining whether an input satisfies a condition on a corresponding argument of the function, instructions for identifying a position of the input, and instructions for providing, in response to determining that the input does not satisfy the condition, an indication of the nonsatisfaction of the condition and the position. The condition can specify a datatype or size for the argument or one or more validation functions for checking the argument.

Systems and methods for function argument checking

Processing external code includes: parsing the external code to identify a first semantic entity, mapping the first semantic entity to a second semantic entity, the first semantic entity comprising a first set of one or more specified attributes and the second semantic entity comprising a second set of one or more attributes that are capable of being specified, determining that a first attribute of the second set of one or more attributes does not have a corresponding specified attribute within the first set of one or more specified attributes, determining available information for specifying the first attribute of the second set of one or more attributes, and storing the second semantic entity in association with the first attribute of the second set of one or more attributes specified based on user selection or specifying the first attribute in response to available information provided to a user interface system.

External code integrations within a computing environment

Apparatus and methods are described for adapting a programming environment to handle renamed programming constructs such as classes and packages. Non-canonical identifiers that reference renamed programming constructs can be used in code parts to be executed in the programming environment, and the code parts can execute, without disruption or user intervention, using related canonical identifiers. The solutions described herein provide backward and forward compatibility for code and data affected by renaming of programming constructs.

Systems and methods for handling renaming of programming constructs in programming environments

In an embodiment, a system may include a processor having memory storing processor-executable instructions for a programming environment. The processor may perform the following instructions. A first, second, and third class may be defined. The second class may be defined as being compatible with the first class. The third class may be defined as being incompatible with the first class. A fourth class may be defined as a subclass of both the first class and the second class. A fifth class may be prevented from being a subclass of both the first class and the third class.

Restricting class inheritance relationships

A method and apparatus, including a computer program apparatus, which facilitate invoking methods defined within a second language system from a first language system. When a method is invoked from the first language system, the techniques automatically compare the output parameters of the first language system method with the number and data-types of parameters output by methods defined within the second language system. Based on this comparison, the invention selects a method that best matches the output signature of the invoked method. The invention, therefore, allows a user to easily invoke methods from external objects, such as C# objects, directly from the first language system.

Method selection in an external language based on output parameters

A device may detect a modification of a class, included in program code, from a first class definition to a second class definition that is different from the first class definition. The device may create a relationship indicator that references the second class definition and that indicates that the class has been modified. The device may store an association between the class and the relationship indicator. The device may access an instance of the class associated with the first class definition. The device may detect the association between the class and the relationship indicator based on accessing the instance of the class. The device may update the instance of the class, using the second class definition, based on detecting the association between the class and the relationship indicator.

Dynamically updating class instances based on class definition changes

A device may provide an interface for an interactive programming environment and may receive a command to display information about an object. The device may provide, based on the command, the information about the object, using: a first display interface that presents the information about the object in a first format that is applicable to users of the object. A second display interface, for the object, may present the information about the object in a second format, different from the first format, the second format including information about the object that is applicable to authors of the class or to authors of subclasses corresponding to the object. The first and second display interface may present the information, about the object, based on a state of the object and/or based on a display section of the information (e.g., certain information may be presented in a header section of the display).

Customizable, dual-format presentation of information about an object in an interactive programming enviornment

A device receives test methods that include input arguments that match parameters. The test methods are used to test one or more portions of dynamically-type programming code, and the parameters define conditions for the test methods. The device receives one or more values for each of the parameters, and applies the parameters and the one or more values to different ones of the test methods. The device executes the different ones of the test methods, with the applied parameters and the applied one or more values, to generate results, and outputs or stores the results.

Combination and reuse of parameters in an automated test environment

A system and method determines an object's lifetime. An object lifecycle engine may work with an object oriented environment. As objects are created, an object graph may be constructed having one or more roots. A root record graph may be constructed, and edges of the root record graph may point in an opposite direction than the edges of the object graph. As objects, entities, and references are added, removed, or deleted from within the environment, the object graph and the root record graph may be updated. A root finder may search the root record graph to determine whether a given root record is no longer rooted. If a root record is no longer rooted, then the object associated with that root record may be determined to be unreachable and at the end of its lifetime. If the root finder search is performed when references are removed, then objects may be destroyed in a deterministic manner.

System and method for determining an object's lifetime in an object oriented environment

In an embodiment, a feature is an aspect of a class which represents information, data, behaviors, or capabilities encapsulated by the class. An accessing class may be given access to one or more specified features encapsulated by an accessed class, without gaining access to other features encapsulated by the accessed class. Accordingly, special access may be granted only to the behavior and data specifically designed for the accessing class, without allowing the accessing class access to all private data and behaviors of the accessed class, and without allowing all classes in a package access to the accessed class.

Methods and systems for setting access to a list of class entities

A class definition syntax that leverages the array and math-oriented nature of a dynamically typed array-based programming language is discussed. Some embodiments of the present invention provides a mechanism for using meta-data to define a class implemented in the dynamically typed array-based programming language. The meta-data provide an easy way to provide class definitions and allow a user to access the class definitions from objects. The meta-data also support extension of class definitions without introducing backward incompatibility.

System and method for accessing meta-data in a dynamically typed array-based language

A language processing environment provides facilities for defining and using handle classes. A handle class is a class that always and only exists as a handle to stored data, yet that data is accessed in the same manner as with non-handle classes. The language processing environment provides syntax such that all values in the language are members of some class and all classes are defined using the same syntax. Methods and properties are supported on both handle and non-handle classes.

Programming environment with support for handle and non-handle user-created classes

A device receives a first test class associated with a first fixture. The first test class includes first method(s) to test portion(s) of dynamically-type programming code, and the first fixture defines first environment(s) for the first method(s). The device receives a second test class associated with the first fixture and a second fixture. The second test class includes second method(s) to test the code portion(s). The first fixture defines the first environment(s) for the second method(s), and the second fixture defines second environment(s) for the second method(s). The device combines the first method(s) of the first test class and the second method(s) of the second test class to create a test group, and analyzes the test group to determine whether the test group is correctly organized based on the first fixture and the second fixture. The device provides a reorganized test group when the test group is incorrectly organized.

Efficient sharing of test fixtures and ordering of test suites

A system obtains code that includes sequences of code; identifies, within a first sequence of code and based on obtaining the code, a first routine that, when executed, enables an array of values to be generated. The array of values is associated with a variable included within the first routine. The system determines whether the routine includes a particular term, and identifies, within the routine, a first identifier when the routine includes the particular term. The first identifier corresponds to a second sequence of code that identifies a first data structure that stores information that identifies one or more second routines. The system identifies, within the data structure, a second routine based on the particular term and a second identifier corresponding to the first routine; executes, using the variable, the second routine to generate a result; and outputs the result based on executing the second routine.

Growing community of inventors

Tolland, CT, United States of America

David A Foti