JPS63201726A - Reference procedure name decision processing system - Google Patents

Abstract

PURPOSE:To decide and translate a built-in procedure name as a user procedure name by a compiler without correcting an original program, by designating a fact that a procedure name being the built-in procedure of a high level programming language is translated as a user procedure name, by an option at the time of translation. CONSTITUTION:A translation time option 1 for instructing a procedure name to be translated as the name of a user procedure which is the procedure name of a built-in procedure integrated into the high level programming language, and generated by a user in a source program 3 is inputted. A translation time option analyzing means 10 for analyzing its translation time option 1 and extracting and registering a built-in procedure name to be translated as a user procedure name, and the source program 3 are inputted. At the time of a syntax analysis processing of this source program 3, when the reference of a registered procedure name appears in a syntax, an original program analyzing means 20 for deciding its procedure name as a user procedure name and translating it is provided. In such a way, the correction of the source program becomes unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a processing method for determining a procedure name when a procedure is cited by a compiler.

(Prior art) Conventionally, procedures (
Hereinafter, this will be referred to as a built-in procedure. ) (hereinafter referred to as the built-in procedure name) is the name of the procedure created by the user (hereinafter referred to as the user procedure).
Hereinafter, this will be referred to as the user procedure name. ) unless previously declared in the source program to be used as
The compiler identifies it as an intrinsic procedure name and translates it.

(Problem to be Solved by the Invention) Therefore, in the conventional method, for example, when a new intrinsic procedure name is added to a high-level programming language, the newly added intrinsic procedure name is added to the already created source program. If a user procedure name with the same name is accidentally quoted, it is necessary to declare in the source program that the procedure name with the same name as the newly added built-in procedure name is a user procedure. In other words, unless the source program is modified, a user procedure name with the same name as the built-in procedure name will be determined to be a built-in procedure name, and a target program will be created that calls the built-in procedure where the user procedure should originally be called. .

(Means for Solving the Problem) The cited procedure name determination processing method of the present invention is a compiler that inputs a source program written in a high-level programming language, translates it into machine code, and generates a target program. inputting a translation option that instructs the procedure name of a built-in procedure built into the language, which should be translated as the name of a user procedure created by the user in the source program;
a translation option analysis means for analyzing the translation options and extracting and registering the built-in procedure name to be translated as a user procedure name, inputting the source program and parsing the source program; The present invention is characterized by comprising source program analysis means for determining and translating the procedure name as a user procedure name when a reference to the procedure name obtained and registered by the means appears in the syntax.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings of FIGS. 1 to 3.

FIG. 1 is a block diagram showing the functions of one embodiment of the present invention.

As shown in FIG. 1, in this embodiment, the procedure name obtained by the translation option analysis means 10 is stored in a user procedure name registration area 100. Translation option analysis means 10
inputs and parses option 1 at the time of translation, which specifies the built-in procedure name to be translated as the user procedure name, extracts the procedure name that should be determined as the user procedure name,
It is stored in the user procedure name registration area 100. The source program analysis means 20 inputs the source program 3 and analyzes its syntax. When a reference to a built-in procedure appears in the syntax of the source program 3, the user procedure name registration area 100
, and the procedure name is registered in the user procedure name registration area 10.
If it is 0, it is determined to be a user procedure name, and if the procedure name is not in the user procedure name registration area 100, it is determined to be a built-in procedure name. Based on the information given from the source program analysis means 20, the object program generation means 30 generates an object program that calls the built-in procedure if the procedure is an embedded procedure, and generates an object program that calls the user procedure if the procedure is a user procedure. generate.

FIG. 2 is an example of a source program written in the FORTRAN language.

As shown in FIG. 3(a), the source program 300 is F
A built-in procedure quotation statement 310 quoting the SIN function, which is an intrinsic procedure of the ORTRAN language, a user procedure quotation statement 320, which cites the DATE subroutine, which is a user procedure, and a TIME subroutine, which is a user procedure. This is a source program that includes a user procedure quotation 330. When the DATE and TIME subroutines of this source program 300 are translated by a compiler that translates them as built-in procedures in the FORTRAN language, it is necessary to understand that the DATE and TIME subroutines are user procedures, as shown in the source program 400 of FIG. 2(b). The source program must be modified by inserting the user procedure declaration statement 410 to be declared. but,
According to the present invention, the procedure name DATE can be set as an option at the time of translation.
Since it is specified in advance that and TIME are user procedure names, there is no need to modify the source program as described above. FIG. 3 shows an example of registration of user procedure name information when implementing the present invention.

Taking the example shown in Figure 1 as an example, the procedure name DATE
Translation time option 1 indicating that , and TIME are user procedure names is analyzed by translation time option analysis means 10, and information regarding the procedure name of DATE and TIME, which are the obtained procedure names, is stored in user procedure name registration area 100. Store in.

(Effects of the Invention) As described above, in the present invention, if the option at the time of translation specifies that a procedure name that is a built-in procedure of a high-level programming language is to be translated as a user procedure name, the source program can be translated without modifying the source program. The compiler can determine the built-in procedure name as a user procedure name and translate it.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the functions of one embodiment of the present invention. FIG. 2 is a diagram showing a source program written in the FORTRAN language, in which (a) shows the program before modification, and (b) shows it after modification. FIG. 3 is a diagram showing an example of a user procedure name registration area in the present invention. 1... Compilation time options, 2... Compiler, 3.
...Original program, 4...Objective program, 10.
... Translation option analysis means, 20... Source program analysis means, 30... Target program generation means, 1
00...User procedure name registration area, 300...FO
RTRAN source program, 310...Built-in procedure reference text, 320...User procedure reference text, 330...
・User procedure quotation, 400...FORTRANN
Start program, 410...User procedure declaration statement.

Claims (1)

[Claims] In a compiler that inputs a source program written in a high-level programming language, translates it into machine code, and generates a target program, a procedure name of an intrinsic procedure incorporated in the high-level programming language, The built-in procedure that inputs a translation option that indicates a procedure name to be translated as the name of a user procedure created by the user in the source program, analyzes the translation option, and translates it as the user procedure name. a translation option analysis means for extracting and registering a procedure name; inputting the source program; and upon parsing the syntax of the source program, if a quotation of the procedure name obtained and registered by the means appears in the syntax; , and source program analysis means for determining and translating the procedure name as a user procedure name.