JPS63262726A - Translation processing system for designated program - Google Patents

Abstract

PURPOSE:To shorten the translation time by instructing a translation of a specific program unit in a source program, storing the name information of its unit in option information at the time of translation, and instructing the translation only when its name exists in the option information. CONSTITUTION:An inputted translation time option 1 is analyzed by an analyzing part 10, and in case of an option for instructing a translation of a designated program unit, the number of pieces of registration of a name of its unit, length of the name, and the name are stored in translation time option information 11. In this state, when a sentence which is fetched from a source program 3 is a sentence for defining the name of the program unit when the name of its unit exists in the information 11, the translation of the program unit is instructed in a program sentence structure analyzing part 20. Also, when the name does not exist in the information 11, the translation is not instructed, and by translating the program unit whose translation is instructed by a generating part 30, an object program is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for translating a source program in a compiler.

(Conventional Technique #t) Conventionally, when one program unit among multiple program units that make up a source program is modified, the target program is modified by re-translating the modified source program. was.

(Problems to be Solved by the Invention) In such a conventional method, all program units in the source program, including not only the modified program units but also the remaining program units, must be retranslated.

Therefore, since up to 14 units of uncorrected progera that do not require retranslation are translated, there is a problem that translation takes time.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the specified program translation processing method provided by the present invention generates a target program by translating a source program written in a high-level programming language. When a compiler inputs a compile-time option that instructs the translation of a specific program unit among the multiple program units that make up the source program,
A translation-time option analysis unit stores information on the name of the program unit to be translated in translation-time option information, and when a statement extracted from the source program is a statement that defines the name of a program unit, a program syntax analysis unit that determines whether or not the name is included in the translation option information, and if so, instructs to translate the program unit; if not, does not issue the instruction; and The present invention is characterized in that it includes a target program generation unit that generates a target program by translating a program unit instructed to be translated by the syntax analysis unit.

(Example) Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing the processing flow of a compiler to which an embodiment of the present invention is applied. FIG. 2 is a configuration diagram of the translation option information 11 shown in FIG. 1.

The translation option analysis unit 10 analyzes the input translation option 1, and if it is an option that instructs translation of a specified program unit, the number of registered program unit names 110 and the length of the program unit name. Sa1
20 and the program unit name 130 are stored in the translation option information 11.

The program syntax analysis unit 20 stores option information 1 at the time of translation.
1, it is determined whether all program units in the source program 3 are program units to be translated.

The target program generation unit 30 includes the program syntax analysis unit 2
Only the program units determined to be translated based on 0 are translated, and the target program 4 is generated.

FIG. 3 shows the brooch yard of the program syntax analysis unit 20 shown in FIG.

In step 200 of FIG. 3, a sentence of the source program 3 is input, and in step 210 it is determined what type of sentence this sentence is. Step 220 checks whether option 1 at the time of translation is an option that instructs translation of the specified program unit. If the option is the option, the process proceeds to step 230; otherwise, the process proceeds to step 250. Step 230
determines whether the input statement defines the name of a program unit, and if the statement defines the name of a program unit, the process proceeds to step 270; otherwise, the process proceeds to step 240. Step 270 compares the name of the program unit with the name 130 of the program unit stored in the translation option information 11, and if they are equal, proceed to step 280; if not equal, proceed to step 2.
Proceed to 90. Step 280 turns on a flag indicating that it is a program unit to be translated, and step 250
Step 290 turns this flag off and returns to step 200. In step 240, the program unit to which the input statement belongs is
Or determine the flag that has been set in step 290,
If it is ON, the process advances to step 250; if it is OFF, the process returns to step 200. Step 250 organizes information necessary for analyzing the input sentence and developing it into machine language in the target program generation section 30. Step 26
0 determines whether this sentence is the last sentence. If it is not the last sentence, the process returns to step 200, and if it is the last sentence, the program syntax analysis process ends.

Next, this example will be explained in detail.

FIGS. 4(a) and 4(b) are diagrams illustrating images of the FORTRANi start program before and after modification, respectively. This figure shows statement 3 in program unit 5UB330 of FORTRAN source program 300 before modification.
50 is modified as in sentence 360. When compiling the modified FORTRAN fg and start program 310 according to this embodiment, the number of program unit name registrations 110 in the translation option information 11 is set to "1", and the length of program unit name 120 is set to "1". 3″,
“SUB” is stored in each program unit name 130. Based on this translation option information 11, the program syntax analysis unit 20 analyzes the program unit 5UB.
Turn on the flag for the sentences that make up 330. The target program generation unit 30 determines the flag and generates the program unit MAIN 320 and the program unit FUN 34.
Translate only program unit 5UB330 without translating 0.

(Effects of the Invention) As explained above, the present invention provides a method for specifying a program unit that needs to be translated from among a plurality of program units constituting a source program written in a high-level programming language using an option at the time of translation. This allows only the specified program unit to be translated. Therefore, when modifying the source program and re-creating the target program, it is sufficient to translate only the modified program unit and link it by the user.Therefore, the remaining program units other than the above-mentioned program unit need to be re-translated. Since this is not necessary, it has the effect of shortening the translation time.

[Brief explanation of drawings]

Figure 1 is a diagram showing the processing flow of Funbaira to which an embodiment of the present invention is applied, Figure 2 is a configuration diagram of the translation option information in Figure 1, and Figure 3 is the program syntax of Figure 1. The flowchart of the analysis section, Figure 4 (a) is a diagram illustrating the image of the FORTRAN source program before modification;
b) is a diagram illustrating an image of the FORTRAN source program after modification. 1... Compilation time options, 2... Compiler, 3.
...Original program, 4...Objective program, 10.
... Compilation-time option analysis section, 11... Compilation-time option information, 20... Program syntax analysis section, 30...
- Objective program generation section.

Claims (1)

[Claims] In a compiler that generates a target program by translating a source program written in a high-level programming language, a translation that instructs the translation of a specific program unit among a plurality of program units constituting the source program. a translation-time option analysis unit that stores information on the name of the program unit to be translated in the translation-time option information when a time option is input; If so, determine whether or not the name of this program unit is in the translation option information, and if so, instruct to translate that program unit, and if not, do not perform the above-mentioned instruction. A specified program translation processing method comprising: a program syntax analysis section; and a target program generation section that translates a program unit instructed to be translated by the program syntax analysis section and generates a target program.