org.eclipse.jdt.internal.compiler.batch.CompilationUnit.java Source code

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Here is the source code for org.eclipse.jdt.internal.compiler.batch.CompilationUnit.java

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/*******************************************************************************
 * Copyright (c) 2000, 2018 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.batch;

import java.io.File;
import java.io.IOException;

import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.env.ICompilationUnit;
import org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment;
import org.eclipse.jdt.internal.compiler.lookup.ModuleBinding;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilationUnit;
import org.eclipse.jdt.internal.compiler.util.Util;

public class CompilationUnit implements ICompilationUnit {
    public char[] contents;
    public char[] fileName;
    public char[] mainTypeName;
    String encoding;
    public String destinationPath;
    public char[] module;
    // a specific destination path for this compilation unit; coding is
    // aligned with Main.destinationPath:
    // == null: unspecified, use whatever value is set by the enclosing
    //          context, id est Main;
    // == Main.NONE: absorbent element, do not output class files;
    // else: use as the path of the directory into which class files must
    //       be written.
    private boolean ignoreOptionalProblems;
    private ModuleBinding moduleBinding;

    public CompilationUnit(char[] contents, String fileName, String encoding) {
        this(contents, fileName, encoding, null);
    }

    public CompilationUnit(char[] contents, String fileName, String encoding, String destinationPath) {
        this(contents, fileName, encoding, destinationPath, false, null);
    }

    public CompilationUnit(char[] contents, String fileName, String encoding, String destinationPath,
            boolean ignoreOptionalProblems, String modName) {
        this.contents = contents;
        if (modName != null)
            this.module = modName.toCharArray();
        char[] fileNameCharArray = fileName.toCharArray();
        switch (File.separatorChar) {
        case '/':
            if (CharOperation.indexOf('\\', fileNameCharArray) != -1) {
                CharOperation.replace(fileNameCharArray, '\\', '/');
            }
            break;
        case '\\':
            if (CharOperation.indexOf('/', fileNameCharArray) != -1) {
                CharOperation.replace(fileNameCharArray, '/', '\\');
            }
        }
        this.fileName = fileNameCharArray;
        int start = CharOperation.lastIndexOf(File.separatorChar, fileNameCharArray) + 1;

        int end = CharOperation.lastIndexOf('.', fileNameCharArray);
        if (end == -1) {
            end = fileNameCharArray.length;
        }

        this.mainTypeName = CharOperation.subarray(fileNameCharArray, start, end);
        this.encoding = encoding;
        this.destinationPath = destinationPath;
        this.ignoreOptionalProblems = ignoreOptionalProblems;
    }

    @Override
    public char[] getContents() {
        if (this.contents != null)
            return this.contents; // answer the cached source

        // otherwise retrieve it
        try {
            return Util.getFileCharContent(new File(new String(this.fileName)), this.encoding);
        } catch (IOException e) {
            this.contents = CharOperation.NO_CHAR; // assume no source if asked again
            throw new AbortCompilationUnit(null, e, this.encoding);
        }
    }

    /**
     * @see org.eclipse.jdt.internal.compiler.env.IDependent#getFileName()
     */
    @Override
    public char[] getFileName() {
        return this.fileName;
    }

    @Override
    public char[] getMainTypeName() {
        return this.mainTypeName;
    }

    @Override
    public char[][] getPackageName() {
        return null;
    }

    @Override
    public boolean ignoreOptionalProblems() {
        return this.ignoreOptionalProblems;
    }

    @Override
    public String toString() {
        return "CompilationUnit[" + new String(this.fileName) + "]"; //$NON-NLS-2$ //$NON-NLS-1$
    }

    @Override
    public char[] getModuleName() {
        return this.module;
    }

    @Override
    public ModuleBinding module(LookupEnvironment rootEnvironment) {
        if (this.moduleBinding != null)
            return this.moduleBinding;
        this.moduleBinding = rootEnvironment.getModule(this.module);
        if (this.moduleBinding == null)
            throw new IllegalStateException("Module should be known"); //$NON-NLS-1$
        return this.moduleBinding;
    }

    @Override
    public String getDestinationPath() {
        return this.destinationPath;
    }
}