@ibm/ibmi-eventf-parser

ibmi-eventf-parser

Parses the event files that are placed into the EVFEVENT PF by IBM i compilers. Provides a call back interface to allow any other tools to process compiler errors. The eventf format is described in this IBM documentation

Installation

This parser is available as an NPM module and can be installed as a dependency using:

npm i @ibm/ibmi-eventf-parser

Example

The API to use this parser is illustrated in the vitest/files.test.ts examples:

FileReader is an implementation of ISequentialFileReader. You can find it in the vitest directory in case you also want to read a local EVFEVENT file.

const parser = new Parser();
const markers: MarkerCreator = new MarkerCreator();
const fileReader = new FileReader(`${TEST_DIR}/SQLRPGLE.PGM.evfevent`);
parser.parse(fileReader, markers);

assert.ok(markers.equals(0, '/home/REINHARD/builds/hll/sqlrpgle.pgm.sqlrpgle', 328, 'Precompile option COMMIT changed by SET OPTION statement.'));
assert.ok(markers.equals(1, '/home/REINHARD/builds/hll/includes/familly.rpgleinc', 23, 'The Definition-Type entry is not valid; defaults to parameter definition.'));
assert.ok(markers.equals(60, '/home/REINHARD/builds/hll/sqlrpgle.pgm.sqlrpgle', 0, 'Compilation stopped. Severity 30 errors found in program.'));

Usage

In the simplest method, create a class that implements the IMarkerCreator interface and then pass an instance into the parse method on the Parser class.

For every error logged in the eventf, the following callback function will be called:

public createMarker(record: ErrorInformationRecord, fileLocation: string, isReadOnly: string) {
    //...
}

where the ErrorInformationRecord has all the information about the error included the original line and column range in the original source that this error was encountered in. The value is that the parser is able to interpret all of the expansion events from precompilers and includes to determine accurate token locations in the origination source file whose path is provided in the fileLocation.

All data is read using the ISequentialFileReader on the general parser.parse(fileReader: ISequentialFileReader, markerCreator?: IMarkerCreator) method. The readNextLine() method can use sockets, read from an array, read a local file, or use any other arbitrary mechanism to get the contents of the eventf.

export interface ISequentialFileReader {
	readNextLine(): string | undefined;
}

For full access to every record that was parsed in the eventf, set an implementation of IProcessor on the parser using the parser.setProcessor() method.