JPH11338700A - Design information analyzing device and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate design of a program based on object orientation. SOLUTION: A design information inputting means 10 receives design information. An extracting means 11 extracts a class and a method from the design information. A correspondence table generating means 12 produces a correspondence table that shows a combination of the class and the method. A 1st symbol setting means 13 sets a 1st symbol to a corresponding cell when a prescribed method is defined in a prescribed class. A 2nd symbol setting means 14 sets a 2nd symbol in a corresponding cell when a prescribed method is inherited from a super class in a prescribed class. A class arranging means 15 outputs the classes of the correspondence table to a display 16 after arranging them in accordance with a hierarchical structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design information analysis device and a recording medium, and more particularly, to a design information analysis device for analyzing design information of a program described using an object-oriented language, and a computer for performing such analysis processing. The present invention relates to a recording medium on which a program to be executed is recorded.

[0002]

2. Description of the Related Art In recent years, a method of thinking in which an "attribute or image (property)" or "characteristic or image (property)" and a function or meaning (method) are integrated with a focus on a real thing (object). In recent years, programming languages based on such thinking methods (hereinafter referred to as object-oriented languages) have become mainstream.

In such an object-oriented language, a desired process is realized by converting a real "thing" into an object by abstraction and appropriately exchanging messages between the obtained objects.

[0004] By the way, objects having common properties can be grouped into units called "classes".
Classes can be hierarchized, and the properties of higher classes (superclasses) are "inherited" by lower classes (subclasses).

In addition, since the properties of a superclass can be redefined (overridden) in a subclass, it is possible to generate a plurality of subclasses having different properties from one superclass, thereby reducing the effort of creating a program. Can be.

FIG. 19 is a diagram showing an example of a class having a hierarchical structure. In this example, animal class 1 is the top-level class, its properties are "weight" and "height", and the methods are "move" (walk with four feet) and "eat" (mouth). Put things in).

[0007] Subclasses that inherit the properties of animal class 1 include mammal class 1-1 and bird class 1-2.
Is defined. The mammal class 1-1 inherits the property of the animal class 1 as it is. Birds class 1
-2 inherits all the properties of the animal class 1, but with respect to the method, while inheriting the method of "eat", the method of "move" is redefined as "fly with wings" ( Override).

[0008] From mammal class 1-1, dog class 1
1-1 and a person class 1-1-2 are derived. The dog class 1-1-1 inherits the property of the mammal class 1-1 as it is. In the human class 1-1-2, a method of "think" is newly added, and a method of "move" is overridden by "walk with two feet".

From bird class 1-2, pigeon class 1
2-1 and crow class 1-2-2 are derived. The pigeon class 1-2-1 inherits the property of the bird class 1-2 as it is. Also, the crow class 1-2-2 inherits the property of the bird class 1-2 as it is.

FIG. 20 is a diagram showing the inheritance relationship of the class group shown in FIG. 19 so as to be clear. As shown in this figure, a mammal class 1-1 and a bird class 1-2 are derived from an animal class 1.

From mammal class 1-1, dog class 1
1-1 and a person class 1-1-2 are derived. Also,
A pigeon class 1-2-1 and a crow class 1-2-2 are derived from the bird class 1-2.

In this figure, "@" indicates an inheritance relationship. The definition of the method is shown at the end of the broken arrow. Further, among the definition contents of the methods, those overriding the definition of the super class are surrounded by broken lines. In this example, two methods, “fly with wings” and “walk with two feet”, are overridden.

[0013]

In the course of object-oriented design and programming of an object-oriented language, it is necessary to frequently perform the following operations. (1) (Search for a super class that has the definition of a specific method) To investigate the definition of the method of a specific class,
Frequently, you need to find where the method is defined. To do so, it is necessary to search for methods corresponding to the class and all its superclasses.

For example, in order to examine how a dog moves, it is necessary to take the following procedure. (A) Search for the definition location of the "move" method of the dog class.

(B) The "move" method of the dog class inherits the mammalian class. (C) The "move" method of the mammalian class is inherited from the animal class. (D) Check the "move" method of the animal class.

(E) It can be seen that it is defined as "walk with four feet". As described above, in order to investigate the definition of a method of a specific class, it is necessary to search for the method definition in order from the subclass to the superclass. There is a problem that it takes time to search because it is often described in a remote place. (2) (Search for a subclass having a definition of a specific method) It is frequently necessary to investigate whether a certain method performs the same operation or an exceptional operation in a specific class and all its subclasses. Occur. Further, when an exceptional operation is performed, a task of examining the operation content occurs. To do so, it is necessary to search for the corresponding method in the class and all its subclasses.

For example, birds (and all subclasses thereof)
You need to take the following steps to check whether all fly by wings. (A) Search for a class that overrides the "move" method in the bird class and all its subclasses ("Dove" and "Crow").

(B) The "move" method is defined only in the bird class. Not overridden in subclasses. (C) It can be seen that the “move” method of all classes is defined as “fly with wings”.

Also, mammals (and all subclasses thereof)
You need to take the following steps to find out if you are walking on all four feet. (A) Search for the class that overrides the "move" method in "milk" and all its subclasses ("dog" and "person").

(B) The "move" method is overridden in the human class. (C) Check the definition contents of the "move" method of the human class. (D) Since the "move" method of "mammals" and "dogs" is inherited from "animals", it is defined as "walk on four feet". It can be seen that only the "move" method of "person" is defined as "walk with two feet".

As described above, it is necessary to search all subclasses in order to investigate whether a certain method performs the same operation or an exceptional operation in a specific class and all subclasses thereof. Therefore, there is a problem that it takes time. (3) (Acquisition of all methods inherited by a specific class) Frequently, it is necessary to investigate all methods possessed by a specific class. For that purpose, it is necessary to search all the methods inherited from the super class of the class.

For example, in order to find out what a person can do, the following steps need to be taken. (A) Examine all methods possessed by the “human”, “mammal”, and “animal” classes.

(B) It can be seen that the user has the "move", "eat", and "think" methods. As described above, in order to investigate all the methods possessed by a specific class, it is necessary to search for the methods of all superclasses, so that there is a problem that it takes time. (4) (Search for Influence Class When Specific Method Is Changed) When a definition of a specific method of a specific class is added or modified, it is frequently necessary to investigate which class is affected. To do so, it is necessary to investigate whether all the subclasses of the class inherit the method as it is (whether it is overridden in the middle).

For example, if the moving method of the "animal" is changed from "walk on four legs" to "run on four legs", it is necessary to take the following procedure in order to determine which class is affected. There is.

(A) For all classes, search for a class that inherits the "move" method of the animal class as it is. (B) "Mammals" and "dogs" are inherited as they are. "People", "birds", "pigeons", and
"Crow" is not inherited as it is.

(C) "animal", "mammal", and
It can be seen that it affects "dogs". In this way, when you add or modify the definition of a specific method of a specific class, you need to determine which class will be affected by checking whether all subclasses of the class inherit the method as it is. It is necessary to investigate whether or not it has been overridden. However, since such a tool has not existed conventionally, there has been a problem in that the object-oriented design and programming work using an object language become complicated.

Further, there are tools for executing each of the above-mentioned (1) to (3), but they are all independent, so that it is necessary to switch a plurality of tools as needed to perform the work. Is complicated.

The present invention has been made in view of the above points, and an object of the present invention is to provide a design information analysis apparatus capable of quickly executing a search process required in programming or design work of an object-oriented language. Aim.

Further, the present invention provides a design which can quickly investigate which class is affected when the definition of a specific method of a specific class is added or modified in programming or design processing of an object-oriented language. An object of the present invention is to provide an information analysis device.

[0030]

According to the present invention, there is provided a design information analyzing apparatus for analyzing design information of a program described using an object-oriented language as shown in FIG. Design information input means for receiving input of design information;
Extracting means 11 for extracting a class and a method included in the design information input at
Table generating means 12 for generating a correspondence table indicating a combination of a class and a method extracted by the method. If a predetermined method is defined in a predetermined class, a corresponding cell of the correspondence table is defined. A first symbol setting means for setting a first symbol; and, when a predetermined method is inherited from a superclass in a predetermined class, a second symbol is assigned to a corresponding cell of the correspondence table. Second symbol setting means 14 to be set
And class rearranging means 15 for rearranging and outputting the classes of the correspondence table in which the symbols are set by the first symbol setting means 13 and the second symbol setting means 14 in accordance with the hierarchical structure. Is provided.

According to such a configuration, the design information input means 10 receives input of design information. The extraction means 11
A class and a method included in the design information input by the design information input unit 10 are extracted. The correspondence table generation unit 12 generates a correspondence table indicating a combination of the class and the method extracted by the extraction unit 11. When a predetermined method is defined in a predetermined class, the first symbol setting means 13 sets a first symbol for a corresponding cell in the correspondence table. When a predetermined method is inherited from a superclass in a predetermined class, the second symbol setting means 14 sets a second symbol for a corresponding cell in the correspondence table. The class rearranging unit 15 includes the first symbol setting unit 13
Then, the classes of the correspondence table in which the symbols are set by the second symbol setting means 14 are rearranged according to the hierarchical structure and output.

[0032]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a principle diagram showing the operation principle of the present invention. In this figure, design information input means 10
Inputs design information of a program described using an object-oriented language (description contents of a design document, source codes of the program, etc., but not limited to these).

The extracting means 11 extracts a class and a method included in the design information. Correspondence table generation means 12
Generates a correspondence table indicating combinations of classes and methods extracted by the extraction unit 11.

When a predetermined method is defined in a predetermined class, the first symbol setting means 13 sets a first symbol (for example, “●”) in a corresponding cell of the correspondence table. I do.

When a predetermined method is inherited from a super class in a predetermined class, the second symbol setting means 14 sets a second symbol (for example, “○”) for a corresponding cell in the correspondence table. ) Is set.

The class rearranging means 15 rearranges the classes of the correspondence table in which the symbols have been set by the first symbol setting means 13 and the second symbol setting means 14 in accordance with the hierarchical structure, and sorts the rearranged correspondence table. Output to the display device 16.

The display device 16 is, for example, a CRT (Cathod).
(E Ray Tube) display, and displays and outputs the correspondence table output from the class rearranging means 15.

Next, the operation of the above principle diagram will be described with reference to FIGS. From the design information input means 10, FIG.
Is input as shown in FIG. The design information shown in this figure is composed of two files (files 20 and 21), and each file has information on one class. That is, the file 20 has information on the animal class, and the file 21 has information on the human class.

Each file is composed of class information on classes, property information on properties, and method information on methods. In the example shown in FIG. 2, the file 20 includes class information 20a, property information 20b, and method information 20c.
a, property information 21b, and method information 21
c.

The class information has a class name and a super class name of the class. That is, the class information 20
“a” has a class name “animal” and its superclass does not exist, so the superclass name is blank. The class information 21a has a class name “person” and a super class name “animal”. From this, it is understood that the human class inherits the animal class.

The property information has properties of the class. That is, the property information 20b has “weight” and “height”. Also, the people class is
Since the properties of the animal class are inherited as they are (new properties are not added), property information 2
No new item is described in 1b.

The method information has information on a method defined in the class. That is, the method information 20c has information on two methods “move” and “eat” defined in the animal class. The method information 21c has information on two methods “move” and “think” defined in the human class.

In this example, since the method "move" defined in the super class animal class is redefined in the subclass human class, the method "move" is overridden in the human class. It is understood that there is.

The design information is not limited to the above format. For example, the source code of a program can be processed. In addition, a single file having information of a plurality of classes can be processed instead of a file divided for each class as described above.

The extracting means 11 divides the design information input via the design information input means 10 into, for example, a class table 25, a property table 26, and a method table 27 as shown in FIG. Information indicating the corresponding relationship is added and stored.

For example, in the class table 25, "animal" and "person" are stored, and it is stored that the person class inherits the animal class by a link indicated by an arrow.

The property table 26 stores “weight” and “height”, and stores that these properties are defined in the animal class by a link indicated by an arrow.

In the method table 27, "move", "eat", "move", and "think"
Is stored, and by the link indicated by the arrow,
It is stored that “move” and “eat” are defined in the animal class. The link stores that “move” and “think” are defined in the human class.

The extracting means 11 extracts a class name and a method name from the design information stored as described above. That is, the class extracting means 11 extracts a class name from the class table 25 shown in FIG. 3, and extracts a method name from the method table 27 shown in FIG. At this time, if there is a duplicate method name, only one is narrowed down and the others are ignored.

The correspondence table generating means 12 firstly selects the extracting means 1
Create a list of the methods extracted by 1. FIG. 4 is a list of methods created from the design information shown in FIG. In this example, since the overlapping method “move” is narrowed down to one by the extraction means 11, “move”, “eat”, and “think”
A list of three methods is shown.

Next, the correspondence table generating means 12 is provided with the extracting means 1
A correspondence table expressing combinations of all methods (except for duplicate methods) extracted by 1 and all classes similarly extracted by the extracting means 11 is generated.

FIG. 5 shows an example of the correspondence table generated by such processing. In this example, a class table “animal” and “person” are added as items to the method list shown in FIG. 4 to generate a correspondence table.

When a predetermined method is defined in a predetermined class, the first symbol setting means 13 sets a first symbol (for example, “●”) for a corresponding cell in the correspondence table. I do.

That is, since the method “move” which is an item on the first line of the correspondence table in FIG. 5 is defined in both the animal class and the human class, the method is described in the first line and the first column. Cell (hereinafter referred to as the first and first cells),
Also, “●” is set in the first and second cells.

Similarly, since the method “eat”, which is the item on the second line, is defined in the animal class, “●” is set in the second and first cells. Furthermore, since the method “think”, which is the item on the third line, is defined in the human class, “●” is set in the third and second cells.

Subsequently, the second symbol setting means 14
When a predetermined method is inherited from a super class in a predetermined class, a second symbol (for example, “○”) is set for a corresponding cell in the correspondence table.

That is, since the method "eat" defined in the animal class is not redefined (overridden) in the human class and this method is inherited as it is, the second and second cells of the correspondence table "○"
Is set.

FIG. 6 shows a correspondence table generated by the above processing. In this correspondence table, the item "think", which is the item in the third row, is defined for the first time in the human class. Therefore, the cell (3rd, 1st cell) corresponding to the "think" in the animal class is It is blank.

The class rearranging means 15 rearranges the classes of the correspondence table in which the symbols are set by the first symbol setting means 13 and the second symbol setting means 14 according to the hierarchical structure. That is, the class rearranging means 15
The following processing is executed. (A) Columns corresponding to classes having no superclass are collected on the left side of the correspondence table, and a mark “0” is assigned to these columns. (B) The column corresponding to the subclass of the class with the mark “0” is moved to the right of the column with the mark “0”, and the mark “1” is given to that column. (C) The column corresponding to the subclass of the class with the mark “n” is moved to the right of the column with the mark “n”, and the mark “n + 1” is given to that column. (D) The process of (c) is repeated until there is no unprocessed class.

FIG. 7 shows the result obtained by applying the above-described processing to the correspondence table shown in FIG. In this example, an item “mark” is added to the bottom row of the correspondence table, and a mark corresponding to each class is added. That is, since the animal class is the highest class (a class having no superclass), the mark “0” is given to the animal class, and the subclass “human class” is given the mark “1” to the right of the animal class. It is located next to it.

Next, the class rearranging means 15 partially changes the display format at the top of the correspondence table to indicate the class inheritance relationship. That is, the class rearranging unit 15 indents the class name to which the mark “n” has been added downward by n lines.

FIG. 8 shows the result obtained by applying the above-described processing to the correspondence table shown in FIG. In this example, the human class, which is a subclass of the animal class, is indented downward by one line, indicating that the human class is a subclass of the animal class.

Then, the class rearranging means 15 outputs the correspondence table in which the classes have been rearranged to the display device 16. At this time, the mark added to the bottom row of the correspondence table is not output.

The display device 16 is provided with the class rearranging means 15.
Display and output the correspondence table output from. Note that, in the above description, simple design information has been described as an example to simplify the description. However, for example, when design information as shown in FIGS. 19 and 20 is input, FIG. Is generated and displayed on the display device 16.

By referring to such a correspondence table,
The following information can be obtained. (1) (Search for a superclass having a definition of a specific method) For example, when checking the definition location of the "move" method of the "dog" class, a cell corresponding to the intersection of the "dog" class and the "move" method Starting from, look at the superclass on the left, and find the class of the cell in which “●” is set.

As a result, it can be seen that the "move" method of the "dog" class is defined in the "animal" class. (2) (Search for a subclass having a definition of a specific method) For example, when searching for the definition location of the "move" method of birds and all of its subclasses, a cell corresponding to the intersection of the "birds" class and the "move" method From the starting point, look at the subclass on the right and search for the class marked with “●”.

As a result, it can be seen that the "move" method of the bird and all its subclasses is defined only in the "bird" class. Also, to find out where to define “move” methods for mammals and all their subclasses,
Starting from the cell corresponding to the intersection of the "mammalian" class and the "move" method, look at the subclass on the right and look for the class marked with "●".

As a result, it can be seen that the "move" method of the mammal and all its subclasses are also defined in the "person" class. (3) (Acquisition of all methods inherited by a specific class) For example, when examining the methods of the "person" class,
Find the method with "●" or "○" in the column of "Person" class.

As a result, it is understood that the methods of the “person” class are “move”, “eat”, and “think”. (4) (Search for influence class when a specific method is changed) For example, when examining the class that has an effect when changing the "move" method of "animal", the "animal" class and the "move" method Starting from the cell corresponding to the intersection of, the subclass on the right side is looked at, and the class with “○” is searched. If a class marked with “●” is encountered on the way, the class and its subclasses are ignored.

As a result, it can be understood that the classes that are affected when the “move” method of “animal” is changed are “animal”, “mammal”, and “dog”. As described above, according to the design information analysis device of the present invention, the information (1) to (3), which are frequently required when designing an object-oriented language, can be easily obtained from the correspondence table. It becomes possible to read.

Further, as shown in the above (4), it is possible to easily read the class affected when a specific method is changed from the correspondence table, so that the design work can be simplified. Becomes

By the way, in the above configuration example, two symbols “●” and “○” are set. However, for example, the symbols may be changed according to the presence or absence of the override in the subclass.

For example, the first symbol setting means 15
If a given method is defined in a given class and its subclass has not been overridden, set "●", and if its subclass has been overridden, set "▲". Constitute. The second symbol setting means 16
Is set in a given class if a given method is inherited from a superclass and no overriding is done in its subclass, and
If the subclass has been overridden, "△" is set.

FIG. 10 shows an example of the correspondence table obtained by such a configuration. In this example, as compared with the case of FIG. 9, the first and first are changed from “●” to “▲”, and the first and second are changed from “○” to “△”.
That is, since the “move” method of the animal class is overridden in the “person” class and the “birds” class, “▲” is set. In addition, the “move” method of the “mammal” class inherits the method of the “animal” class and is set to “△” because it is overridden in the “human” class, which is a subclass thereof.

With such a configuration, the above-described processing (2) can be performed more easily. That is, when examining the definition location of the "move" method of birds and all subclasses, when "●" or "○" is set in the cell corresponding to the intersection of the "birds" class and the "move" method Immediately sees that the subclass has no definition for that method.

When examining the definition location of the “move” method of the mammal and all of its subclasses, “▲” or “△” is set in the cell corresponding to the intersection of the “mammalian” class and the “move” method. , It is immediately apparent that the definition of the method exists in the subclass. In that case, "Mammal" class and "move"
From the cell corresponding to the intersection of the methods as a starting point, looking at the right side and searching for the class in which “●” or “▲” is set, the class in which the definition is made can be known.

Next, a configuration example of the embodiment of the present invention will be described with reference to FIG. FIG. 11 is a block diagram illustrating a configuration example of the embodiment of the present invention. In the figure, a CPU (Central Processing Unit) 30 controls each unit of the apparatus and performs a predetermined calculation process.

The ROM (Read Only Memory) 31 has a CP
Basic software executed in U30 and various data are stored. RAM (Random Access Memor
y) 32 temporarily stores data being calculated, programs being executed, and the like when the CPU 30 executes various programs.

The HDD (Hard Disk Drive) 33 has a CP
Various programs executed by the U30 are stored. The image drive unit 34 performs drawing processing and conversion processing of character codes into bitmaps necessary for displaying image data on the display device 35.

The display device 35 is constituted by, for example, a CRT display or the like, and displays the video signal supplied from the image drive unit 34. IF (Interface) 36
Converts the data format as appropriate when inputting signals from the mouse 38 and the keyboard 39.

The bus 37 comprises a CPU 30, a ROM 31, an R
AM 32, HDD 33, image driving unit 34, and IF
36 to transmit data. The mouse 38 is a pointing device, and inputs position information and determination information from left and right buttons.

The correspondence between the principle shown in FIG. 1 and the embodiment shown in FIG. 11 is shown below. That is, the function of the design information input means 10 shown in FIG.
6 is realized.

The extracting means 11, the correspondence table generating means 12, the first
The functions of the symbol setting means 13 and the second symbol setting means 14 are realized by the CPU 30. The function of the class rearranging means 15 is as follows.
4 is realized.

The keyboard 39 inputs character code information according to the operation of the user. Next, an example of processing executed in the above embodiment will be described. FIG. 12 is a flowchart illustrating an example of processing performed when a correspondence table is generated in the embodiment illustrated in FIG. When this flowchart is started, the following processing is executed. [S1] The CPU 30 extracts one class name from the design information (or the design information input from the keyboard 39) stored in the HDD 33. [S2] The CPU 30 adds the extracted class name to the class table (see FIG. 3). [S3] The CPU 30 extracts one method defined in the extracted class from the design information. [S4] The CPU 30 adds the extracted method name to the method table (see FIG. 3). [S5] The CPU 30 determines whether or not all methods have been extracted, and if all methods have been extracted, proceeds to step S6.
Otherwise, the process returns to step S3. [S6] The CPU 30 determines whether or not all classes have been extracted. If all classes have been extracted, the process proceeds to step S7; otherwise, the process returns to step S1. [S7] The CPU 30 lists the method (see FIG. 4).
Create

At this time, if the same method is already stored in the method table, the method is discarded. [S8] The CPU 30 creates the correspondence table shown in FIG. [S9] The CPU 30 executes a symbol setting process described later, and sets “●” or “O” for each cell of the correspondence table. [S10] The CPU 30 executes a class rearrangement process described later, and rearranges the classes according to the hierarchical structure. [S11] The CPU 30 indents the class name in the correspondence table. [S12] The CPU 30 supplies the created correspondence table to the image drive unit 34, and causes the display device 35 to display it.

Next, the details of the "symbol setting process" shown in step S9 in FIG. 12 will be described with reference to FIG. When this flowchart is started, the following processing is executed. [S21] The CPU 30 initializes variables i and j to a value of 1. [S22] The CPU 30 acquires the i-th method M from the correspondence table shown in FIG. [S23] The CPU 30 acquires the j-th class C from the correspondence table shown in FIG. [S24] The CPU 30 determines whether or not the class C has the method M. That is, the CPU 30 determines whether or not the method M is defined in the class C. If the method M is defined, the process proceeds to step S25; otherwise, the process proceeds to step S26. [S25] The CPU 30 sets “●” in the i-th and j-th cells of the correspondence table. [S26] The CPU 30 selects the super class S of the class C.
1, S2,... Are obtained from the correspondence table. [S27] The CPU 30 sets the superclasses S1, S2,
.. Have a method M. That is, the CPU 30 determines whether the super classes S1, S
It is determined whether the method M is defined in any of the steps 2,..., And if it is, step S
The process proceeds to step S28, and otherwise proceeds to step S29. [S28] The CPU 30 sets “○” in the ith and jth cells of the correspondence table. [S29] The CPU 30 leaves the i-th and j-th cells in the correspondence table blank. [S30] The CPU 30 increments the value of the variable j by “1”. [S31] The CPU 30 determines whether or not the value of the variable j is equal to or less than the number n of elements in the column of the correspondence table. If the value is equal to or less than n, the process returns to step S23; move on. [S32] The CPU 30 substitutes the value 1 for the variable j. [S33] The CPU 30 increments the value of the variable i by “1”. [S34] The CPU 30 determines whether or not the value of the variable i is equal to or less than the number m of elements in the row of the correspondence table. If the value is equal to or less than m, the process returns to step S22. Return to.

Next, the details of the "class rearrangement process" shown in step S10 of FIG. 12 will be described with reference to FIG. When this flowchart is started, the following processing is executed. [S41] The CPU 30 initializes a variable i to a value 0. [S42] The CPU 30 assigns a mark “0” to a column corresponding to a class having no superclass in the correspondence table. [S43] The CPU 30 moves the column with the mark “0” to the left side of the correspondence table. [S44] The CPU 30 determines whether or not all the columns have been marked. If all the columns have not been marked, the process proceeds to step S45. Otherwise, the process returns to the original process. [S45] The CPU 30 assigns the mark “i + 1” to the column corresponding to the subclass of the class to which the mark “i” is assigned. [S46] The CPU 30 moves the column with the mark “i + 1” to the right of the column with the mark “i” corresponding to the superclass of the class corresponding to the column. [S47] The CPU 30 increments the value of the variable i by “1”, and returns to step S44.

According to the above processing, a correspondence table as shown in FIG. 9 can be generated and displayed on the display device 35. The user can refer to this correspondence table to
The information shown in the above (1) to (4) can be easily obtained.

Next, a description will be given of a process executed when a predetermined operation is performed on the correspondence table displayed on the display device 35 by the above process. Now, as shown in FIG. 15, when a predetermined operation is performed on the correspondence table displayed on the display device 19, for example, after the cursor 41 of the mouse 38 is moved to a predetermined cell, the left button is pressed. (Not shown) is operated twice (double-clicked) continuously, a message box 42 containing the corresponding design information is displayed.
Is displayed.

That is, when the information indicating that the left button has been double-clicked is input from the mouse 38, the CPU 30 acquires the coordinates of the cursor 41, reads out the design information corresponding to the coordinates from the HDD 33, and It is supplied to the image drive unit 34. As a result, a message box 42 is displayed as shown in FIG.

In the example of FIG. 15, the third and fourth cells are selected, and information relating to the human class is displayed in the message box 42 as the corresponding design information. The item (method "think") corresponding to the cursor 41 is highlighted.

According to such a configuration, it is possible to easily refer to the design information corresponding to each cell in the correspondence table, so that the program design work can be performed more efficiently.

Next, when a predetermined operation is performed on the correspondence table displayed on the display device 19, for example, after the mouse cursor 41 is moved to a predetermined cell, the left button is pressed only once. If an operation (single click) is performed,
As shown in FIG. 16, only the relevant class and its super class are displayed, and information on other classes is not displayed.

That is, when information indicating that the left button has been single-clicked is input from the mouse 38, the CPU 30 obtains the coordinates of the cursor 41, and displays the class corresponding to the coordinates and its superclass in the HDD 33. Fetch from the design information stored in. Then, cells corresponding to classes other than the acquired class and its super class are set to a non-display state. As a result, a screen as shown in FIG.

In the example of FIG. 16, since the human class is selected, cells other than the human class, which is the class, and the mammalian class and the animal class, which are super classes, are not displayed.

According to such a configuration, the above-mentioned operation (1) can be easily performed. Subsequently, when a predetermined operation is performed on the correspondence table displayed on the display device 19, for example, when the right button is single-clicked after the mouse cursor 41 is moved to a predetermined cell. As shown in FIG. 17, only the class and its subclasses are displayed, and information on other classes is hidden.

That is, when information indicating that the right button has been single-clicked is input from the mouse 38, the CPU 30 obtains the coordinates of the cursor 41, and stores the class corresponding to the coordinates and its subclass in the HDD 33. Obtain from the stored design information. Then, cells corresponding to classes other than the acquired class and its subclass are set to a non-display state. As a result, a screen as shown in FIG. 17 is displayed on the display device 35.

In the example of FIG. 17, since the mammal class is selected, cells other than the mammal class, which is the class, and the dog class and the human class, which are subclasses, are not displayed.

According to such a configuration, the operations (2) and (4) described above can be easily performed. Subsequently, if the left and right buttons are simultaneously single-clicked after the mouse cursor 41 is moved to a predetermined cell, only the method of the class is displayed as shown in FIG. Is in a non-display state.

That is, when information indicating that the left and right buttons are simultaneously single-clicked is input from the mouse 38, the CPU 30 obtains the coordinates of the cursor 41 and obtains the class corresponding to the coordinates. Then, the cells other than the acquired method are set to the non-display state. as a result,
A screen as shown in FIG. 18 is displayed on the display device 35.

In the example of FIG. 18, since the dog class is selected, the method "think" which is not included in the dog class is not displayed. According to such a configuration, the operation (3) described above can be easily performed.

Finally, the above processing functions can be realized by a computer. In this case, the processing contents of the functions that the design information analysis device should have are described in a program recorded on a computer-readable recording medium, and the above processing is executed by the computer by executing this program on the computer. Is achieved. Examples of the computer-readable recording medium include a magnetic recording device and a semiconductor memory.

For distribution to the market, a CD-ROM
(Compact Disk Read Only Memory) or a program stored in a portable recording medium such as a floppy disk and distributed, or stored in a storage device of a computer connected via a network and transferred to another computer via the network You can also. When the program is executed by the computer, the program may be stored in a hard disk device or the like in the computer, loaded into the main memory, and executed.

[0104]

As described above, according to the present invention, a class and a method included in design information are extracted, a correspondence table indicating a combination thereof is generated, and a predetermined method is defined in a predetermined class. If the first symbol is set for the corresponding cell in the correspondence table, while if the predetermined method is inherited from the superclass in the predetermined class, the corresponding cell in the correspondence table is set. , And the classes are rearranged according to the hierarchical structure and output to the display device. Therefore, the method for searching for a method necessary for designing or creating a program in an object-oriented language can be quickly performed. It becomes possible to execute.

Further, according to the present invention, when a predetermined method is changed, it is possible to easily know the class affected by the change.

[Brief description of the drawings]

FIG. 1 is a principle diagram illustrating the principle of the present invention.

FIG. 2 is a diagram illustrating an example of design information.

FIG. 3 is a diagram showing one mode of storing design information stored in a design information storage unit.

FIG. 4 is a diagram illustrating an example of a method list.

FIG. 5 is an example of a correspondence table showing combinations of all classes and all methods.

FIG. 6 is a diagram showing a result of setting symbols in the correspondence table shown in FIG. 5;

FIG. 7 is a diagram showing a result in which a mark is set in the correspondence table shown in FIG. 6;

8 is a diagram illustrating a result of performing indentation processing on the correspondence table illustrated in FIG. 7;

FIG. 9 is a diagram showing another example of the correspondence table.

FIG. 10 is a diagram showing still another example of the correspondence table.

FIG. 11 is a block diagram illustrating a configuration example of an embodiment of the present invention.

FIG. 12 is a flowchart illustrating an example of a process performed in the embodiment illustrated in FIG. 11;

FIG. 13 is a flowchart illustrating details of a “symbol setting process” illustrated in FIG. 12;

FIG. 14 is a flowchart illustrating details of “class rearrangement processing” illustrated in FIG. 12;

FIG. 15 is a display example of a screen displayed when a left button is double-clicked after a cursor is moved to a predetermined cell of the correspondence table shown in FIG. 9;

16 is a display example of a screen displayed when a left button is single-clicked after a cursor is moved to a predetermined cell of the correspondence table shown in FIG. 9;

FIG. 17 is a display example of a screen displayed when a right button is single-clicked after a cursor is moved to a predetermined cell of the correspondence table shown in FIG. 9;

18 is a display example of a screen displayed when a cursor is moved to a predetermined cell of the correspondence table shown in FIG. 9 and then left and right buttons are simultaneously single-clicked.

FIG. 19 is a diagram illustrating an example of a class having a hierarchical structure.

20 is a diagram showing the inheritance relationship of the class group shown in FIG. 19 so as to be clear.

DESCRIPTION OF SYMBOLS 10 Design information input means 11 Extraction means 12 Correspondence table generation means 13 First symbol setting means 14 Second symbol setting means 15 Class rearranging means 16 Display device 30 CPU 31 ROM 32 RAM 33 HDD 34 Image drive Unit 35 display device 36 IF 37 bus 38 mouse 39 keyboard

Claims (7)

[Claims] 1. A design information analysis apparatus for analyzing design information of a program described using an object-oriented language, comprising: design information input means for receiving the design information; Extracting means for extracting classes and methods included in the design information; correspondence table generating means for generating a correspondence table indicating a combination of the classes and methods extracted by the extracting means; and a predetermined method in a predetermined class Is defined, a first symbol setting means for setting a first symbol for a corresponding cell of the correspondence table, and a predetermined method is inherited from a superclass in a predetermined class. A second symbol setting means for setting a second symbol for a corresponding cell of the correspondence table; And a class rearranging unit that rearranges and outputs the classes of the correspondence table in which the symbols are set by the second symbol setting unit in accordance with the hierarchical structure. 2. The method according to claim 1, wherein the first symbol setting means changes an output format of the first symbol depending on whether or not an overriding is performed in a subclass, and wherein the second symbol setting means performs an overriding in a subclass. 2. The design information analysis apparatus according to claim 1, wherein an output format of the second symbol is changed according to whether or not the second symbol has been output. 3. Selection information input means for receiving input of selection information indicating that a predetermined item of the output correspondence table is selected, and corresponding to the selection information input via the selection information input means. The design information analysis device according to claim 1, further comprising: design information output means for outputting design information to be performed. 4. Selection information input means for receiving selection information indicating that a predetermined item of the output correspondence table has been selected, and an input through the selection information input means of the correspondence table. 2. The design information analysis apparatus according to claim 1, further comprising: output stop means for stopping output of a part other than the class corresponding to the selected selection information and its super class. 5. A selection information input means for receiving selection information indicating that a predetermined item of the output correspondence table has been selected, and an input through the selection information input means of the correspondence table. 2. The design information analysis apparatus according to claim 1, further comprising: output stop means for stopping output of a part other than the class corresponding to the selected selection information and its subclass. 6. A selection information input means for receiving selection information indicating that a predetermined item of the output correspondence table has been selected, and an input via the selection information input means of the correspondence table. 2. The design information analysis apparatus according to claim 1, further comprising: output stop means for stopping output of a part corresponding to a method in which a symbol is not set in a cell of a class corresponding to the selected selection information. 7. A computer-readable recording medium storing a program for analyzing design information of a program described using an object-oriented language, comprising: a computer; design information input means for receiving the design information; Extracting means for extracting classes and methods included in the design information input by the information input means; correspondence table generating means for generating a correspondence table indicating combinations of classes and methods extracted by the extracting means; If a predetermined method is defined in the class of the first table, first symbol setting means for setting a first symbol to a corresponding cell of the correspondence table; If inherited, a second symbol is assigned to the corresponding cell in the correspondence table. And a class rearranging unit that rearranges the classes of the correspondence table in which the symbols are set by the first and second symbol setting units in accordance with the hierarchical structure and outputs the class. A computer-readable recording medium that has been recorded.