JPH02178733A - Program list preparing device - Google Patents

Abstract

PURPOSE:To obtain a program list corresponding to the execution order of methods by storing data of the methods and the call relation of inter-method as data of a tree corresponding to nodes and links and outputting source codes corresponding to respective nodes based on data of the call relation. CONSTITUTION:A call relation preparing means 11 recording the methods decided by the class of an object and the class of a message and the call relation of inter-method as data of a tree structure, which are respectively caused to correspond to the node where the name of the class and that of the message are written and the link showing the call relation of inter-method, a call relation extracting means 12 generating the call relation required for generating the tree structure and displaying it on a screen, and a program list preparing means 13 which follows the nodes in a passing order and which prepares the program list are provided. Thus, the program list following the execution order of the methods can be outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a program list creation device for a control system, and particularly to a program list creation device for a program list whose method to be executed is determined at the time of program execution. Regarding the creation device.

[Conventional technology]

In general, in object-oriented programming such as 3malltalk, calculations are performed by sending messages to objects1, and the method to be executed is determined by the class to which the object belongs at the time of program execution. It is determined. Conventionally, in the program list of Programming 8a, methods are roughly classified and described by class.

[Problem to be solved by the invention]

However, with conventional program list creation devices, program lists are created regardless of method execution, so it is difficult to know how the program is actually executed.
There is a problem in that it is difficult to read the created program list, and therefore it takes time to study and check programs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a program list creation device that can output a program list according to the execution order of methods.

[Means for Solving the Problems] In order to solve the above problems, in the program list creation device according to the present invention, methods determined by a pair of an object class and a message, and the calling relationship between the methods, are determined by a class name and a message name. a calling relationship creation means for recording as tree-structured data corresponding to links representing calling relationships between exited nodes and methods; The apparatus includes a calling relationship extracting means for displaying, and a program list creating means for creating a program list based on the data of the calling relationship creating means.

[Operation] When the message name and class name of the program for which you want to create a program list are input to the calling relationship creation means,
The relationship creation means displays on the screen a node with the entered message name and class name circled. The user selects a node here. Next, when an analysis command is input to the calling relationship extraction means, the calling relationship extraction means generates all messages used in the method corresponding to the selected node and displays them on the screen.

Here the user selects the message they wish to analyze. When a message is selected, the calling relationship extraction means generates all classes that may receive the selected message and displays them on the screen.

The user speculatively selects the class of object to which the selected message is being sent. When a class is selected, the calling relationship extracting means sends data of the selected message name and class name to the calling relationship creating means. The calling relationship creation means creates a new node with the message name and class name selected by the user, and also links the newly created node and a link indicating the calling relationship with the previously displayed node. Add a new one to a position where the order of execution is maintained, rearrange the whole thing, and display it on the screen. The user selects 16 nodes corresponding to the source code they wish to analyze from the display screen.

On the other hand, when a program list creation command is input to the calling relationship extraction means, the calling relationship extraction means notifies the calling relationship creation means.

The calling relationship creating means sends data on currently held methods and calling relationships between methods to the program list creating means. The program list creation method is
Based on the tree data shown in the form of nodes and links, the nodes are traced in order of starting point, and the source code corresponding to each node is retrieved from the program memory →.
Output to printing device. The printing device outputs a program list in the order in which the methods are executed.

(Embodiment) An embodiment of the program list creation device according to the present invention will be described below.

FIG. 2 is a block diagram showing a schematic configuration of the program list creation device of the present invention. In the figure, reference numeral 11 denotes a calling relationship creation means for recording methods and calling relationships between methods determined by a set of an object class and a message as data in a tree structure that corresponds to nodes and links, respectively, and 12 represents the above-mentioned tree M4 structure. A calling relationship extracting means 13 generates the calling relationships necessary for forming the calling relationship, and a program list creating means 13 creates a program list based on the data of the calling relationship creating means. The calling relationship creating means 11, the calling relationship extracting means 12, and the program list creating means 13 constitute a control section 1, and this control section 1 can be constructed using a microprocessor. In addition, 2 is an input means consisting of a keyboard and a mouse, 3 is a program memory in which programs to be executed and pre-registered methods are stored, 4 is a printing Huff for printing a program list, and 5 is a display for displaying a program list. Both are small output devices that display on the screen.

Next, the processing procedure of the control unit 1 when creating a program list using the program list creation device described above will be described in a second manner.
The process will be explained based on the flowchart of FIG. 1 with reference to the drawings.

First, when the message name and class name of the program for which a program list is to be created are input from the input means 2 (step 101), the call relationship creation means 11 outputs the node with the input message name and class name to the image output device. 5 (step 102). Next, when a node is selected by the user (step 103) and a command is input to the calling relationship extraction means 12 (step 104), the calling relationship extraction means 12 determines whether the input command is an analysis command. (Step 105).

Here, when it is determined that the input command is an analysis command, the calling relationship extraction means 12 performs step 1.
All messages used in the method corresponding to the node selected in step 03 are generated and displayed on the image output device 5 (step 106). Next, when one of the displayed messages is selected (step 107), the calling relationship extraction means 12 generates all classes that may receive the selected message and displays them on the image output device 5. (Step 108). When the class of the object to which the selected message is sent is selected by estimation (step 10), the calling relationship extraction means 12
9) The message name and class name determined in steps 107 and 109 are sent to the calling relationship creation means 11 (step 110). Calling relationship creation means 11
creates a new node in which the message name and class name are written (step 111). Then, the newly created node and the link indicating the calling relationship are newly added to the position where the order of execution of the previously displayed nodes and links is maintained, and the whole is rearranged (step 112) and the image is output. It is displayed on wave v15 (step 113).

On the other hand, when it is determined in step 105 that the input command is not an analysis command, the calling relationship extraction means 12 determines whether the command is a list creation command (step 114).

Here, if it is determined that it is not a list creation command, the process is terminated, and if it is determined that it is a list creation command, the calling relationship creation means 11 is notified to the list 1 that it is a creation command (step 115). The calling relationship creating means 11 sends data on currently held methods and calling relationships between methods to the program list creating means 13 (step 116). The program list creation means 13 traces the nodes in the starting order based on the tree data shown in the form of nodes and links, takes out the source code corresponding to each node from the program memory 3, and prints it on the printing device 4. Output (step 117). The printing device 4 outputs a program list written in the order of method execution (step 118).

〔Effect of the invention〕

As explained above, the program list creation device according to this defense stores data on methods and call relationships between methods as tree data corresponding to nodes and links, and also stores data on calls necessary to form the tree. Since the relationships are generated, the nodes are traced in the order of invocation based on the calling relationship data, and the source code corresponding to each node is output, it is possible to create a program list according to the method execution order. , you can easily examine and check programs.

[Brief explanation of the drawing]

FIG. 1 is a 70-chat showing the processing procedure of the control section, and FIG. 2 is a block diagram showing the strategic configuration of the program list creation device of the present invention. DESCRIPTION OF SYMBOLS 1... Control unit, 2... Input means, 3... Program memory, 4... Printing device, 5...
. . . Image output device, 11 . . . Calling relation creation means, 12 . . . Calling relation extraction means, 13 . . . Program list creation means.

Claims (1)

[Claims] In a program list creation device compatible with an object-oriented programming language, tree data in which methods and calling relationships between methods determined by a combination of an object class and a message are associated with nodes and links, respectively. a calling relationship generating means for recording the calling relationships necessary to form the tree; a calling relationship extracting means for generating the calling relationships necessary to form the tree; and a program list creating means for creating a program list based on the data of the calling relationship creating means. A program list creation device characterized by comprising the following.