Class JavaCompiler

lib/compilers/java.ts:49–472

import {JavaParser} from './argument-parsers.js';

export class JavaCompiler extends BaseCompiler implements SimpleOutputFilenameCompiler {
    static get key() {
        return 'java';
    }

    javaRuntime: string;
    mainRegex: RegExp;

    libPaths: string[];

    constructor(compilerInfo: PreliminaryCompilerInfo, env: CompilationEnvironment) {
        super(
            {
                // Default is to disable all "cosmetic" filters
                disabledFilters: ['labels', 'directives', 'commentOnly', 'trim', 'debugCalls'],
                ...compilerInfo,
            },
            env,
        );
        this.javaRuntime = this.compilerProps<string>(`compiler.${this.compiler.id}.runtime`);
        this.mainRegex = /public static ?(.*?) void main\(java\.lang\.String\[]\)/;
        this.libPaths = [];
    }

    override getSharedLibraryPathsAsArguments() {
        return [];
    }

    override async runCompiler(
        compiler: string,
        options: string[],
        inputFilename: string,
        execOptions: ExecutionOptionsWithEnv,
        filters?: ParseFiltersAndOutputOptions,
    ): Promise<CompilationResult> {
        if (!execOptions) {
            execOptions = this.getDefaultExecOptions();
        }

        if (!execOptions.customCwd) {
            execOptions.customCwd = path.dirname(inputFilename);
        }

        // The items in 'options' before the source file are user inputs.
        const sourceFileOptionIndex = options.findIndex(option => {
            return option.endsWith('.java');
        });
        const userOptions = options.slice(0, sourceFileOptionIndex);
        const javaOptions = _.compact([...this.getClasspathArgument(), ...userOptions, inputFilename]);
        const result = await this.exec(compiler, javaOptions, execOptions);
        return {
            ...this.transformToCompilationResult(result, inputFilename),
            languageId: this.getCompilerResultLanguageId(filters),
            instructionSet: this.getInstructionSetFromCompilerArgs(options),
        };
    }

    async readdir(dirPath: string): Promise<string[]> {