lib/compilers/kotlin.js

// Copyright (c) 2021, Compiler Explorer Authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
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//     * Redistributions of source code must retain the above copyright notice,
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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import { KotlinParser } from './argument-parsers';
import { JavaCompiler } from './java';

export class KotlinCompiler extends JavaCompiler {
    static get key() {
        return 'kotlin';
    }

    getDefaultExecOptions() {
        const execOptions = super.getDefaultExecOptions();
        const javaHome = this.compilerProps(`compiler.${this.compiler.id}.java_home`);
        if (javaHome) {
            execOptions.env.JAVA_HOME = javaHome;
        }

        return execOptions;
    }

    getMainClassName() {
        return 'ExampleKt';
    }

    filterUserOptions(userOptions) {
        // filter options without extra arguments
        userOptions = (userOptions || []).filter(option =>
            option !== '-script' && option !== '-progressive' && !option.startsWith('-Xjavac'));

        const oneArgForbiddenList = new Set([
            // -d directory
            // Destination for generated class files
            '-d',
            // -jdk-home path
            // Include a custom JDK from the specified location
            // into the classpath instead of the default JAVA_HOME
            '-jdk-home',
            // -kotlin-home path
            // Path to the home directory of Kotlin compiler used for
            // discovery of runtime libraries
            '-kotlin-home',
        ]);

        // filter options with one argument
        return super.filterUserOptionsWithArg(userOptions, oneArgForbiddenList);
    }

    optionsForFilter(filters) {
        // Forcibly enable javap
        filters.binary = true;

        return [
            '-Xjavac-arguments="-Xlint:all"',
        ];
    }

    getArgumentParser() {
        return KotlinParser;
    }
}