Add Kotlin/JVM support (#2637)

* Add Kotlin/JVM support

* Update CONTRIBUTORS.md

* Use kotlinc-jvm instead of kotlinc

* Fix alphabetical ordering

* Filter kotlin compiler arguments

Extract user options filtering for java into a separate function to
handle filtering options with extra arguments.
Filter kotlin compiler options: -d, -jdk-home, -kotlin-home, -script, -progressive

* Filter -Xjavac user options

Filter any option that starts with '-Xjavac', as it could be used to pass unwanted options through kotlinc to javac.

* Fix year in copyright

Co-authored-by: Rubén Rincón Blanco <ruben@rinconblanco.es>

* Add kotlin.amazon.properties

* Add JAVA_HOME to kotlin default exec options

Query per-compiler property 'java_home' and set environment

* Add java_home to kotlin properties

Co-authored-by: Daniel Below <daniel.below@jetbrains.com>
Co-authored-by: Rubén Rincón Blanco <ruben@rinconblanco.es>

1 files changed, 78 insertions, 0 deletions

diff --git a/lib/compilers/kotlin.js b/lib/compilers/kotlin.js
new file mode 100644
index 000000000..a7e21f796
--- /dev/null
+++ b/lib/compilers/kotlin.js
@@ -0,0 +1,78 @@
+// 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:
+//
+//     * Redistributions of source code must retain the above copyright notice,
+//       this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+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;
+    }
+
+    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;
+    }
+}