com.google.idea.blaze.base.model.primitives.LanguageClass.java Source code

Introduction

Here is the source code for com.google.idea.blaze.base.model.primitives.LanguageClass.java

Source

/*
 * Copyright 2016 The Bazel Authors. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.idea.blaze.base.model.primitives;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import javax.annotation.Nullable;

/** Language classes. */
public enum LanguageClass {
    GENERIC("generic", ImmutableSet.of()), C("c", ImmutableSet.of("c", "cc", "cpp", "h", "hh", "hpp")), JAVA("java",
            ImmutableSet.of("java")), ANDROID("android", ImmutableSet.of("aidl")), JAVASCRIPT("javascript",
                    ImmutableSet.of("js", "applejs")), TYPESCRIPT("typescript",
                            ImmutableSet.of("ts", "ats")), DART("dart", ImmutableSet.of("dart")), GO("go",
                                    ImmutableSet.of("go")), PYTHON("python", ImmutableSet.of("py", "pyw"));

    private static final ImmutableMap<String, LanguageClass> RECOGNIZED_EXTENSIONS = extensionToClassMap();

    private static ImmutableMap<String, LanguageClass> extensionToClassMap() {
        ImmutableMap.Builder<String, LanguageClass> result = ImmutableMap.builder();
        for (LanguageClass lang : LanguageClass.values()) {
            for (String ext : lang.recognizedFilenameExtensions) {
                result.put(ext, lang);
            }
        }
        return result.build();
    }

    private final String name;
    private final ImmutableSet<String> recognizedFilenameExtensions;

    LanguageClass(String name, ImmutableSet<String> recognizedFilenameExtensions) {
        this.name = name;
        this.recognizedFilenameExtensions = recognizedFilenameExtensions;
    }

    public String getName() {
        return name;
    }

    public static LanguageClass fromString(String name) {
        for (LanguageClass ruleClass : LanguageClass.values()) {
            if (ruleClass.name.equals(name)) {
                return ruleClass;
            }
        }
        return null;
    }

    /** Returns the LanguageClass associated with the given filename extension, if it's recognized. */
    @Nullable
    public static LanguageClass fromExtension(String filenameExtension) {
        return RECOGNIZED_EXTENSIONS.get(filenameExtension);
    }
}