org.eclipse.jdt.internal.core.builder.SourceFile.java Source code

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Here is the source code for org.eclipse.jdt.internal.core.builder.SourceFile.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 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.core.builder;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.CoreException;

import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.env.ICompilationUnit;
import org.eclipse.jdt.internal.compiler.env.IModule;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
import org.eclipse.jdt.internal.core.util.Util;

public class SourceFile implements ICompilationUnit {

    public IFile resource;
    ClasspathMultiDirectory sourceLocation;
    String initialTypeName;
    boolean updateClassFile;

    public SourceFile(IFile resource, ClasspathMultiDirectory sourceLocation) {
        this.resource = resource;
        this.sourceLocation = sourceLocation;
        this.initialTypeName = extractTypeName();
        this.updateClassFile = false;
    }

    public SourceFile(IFile resource, ClasspathMultiDirectory sourceLocation, boolean updateClassFile) {
        this(resource, sourceLocation);

        this.updateClassFile = updateClassFile;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (!(o instanceof SourceFile))
            return false;

        SourceFile f = (SourceFile) o;
        return this.sourceLocation == f.sourceLocation
                && this.resource.getFullPath().equals(f.resource.getFullPath());
    }

    String extractTypeName() {
        // answer a String with the qualified type name for the source file in the form: 'p1/p2/A'
        IPath fullPath = this.resource.getFullPath();
        int resourceSegmentCount = fullPath.segmentCount();
        int sourceFolderSegmentCount = this.sourceLocation.sourceFolder.getFullPath().segmentCount();
        int charCount = (resourceSegmentCount - sourceFolderSegmentCount - 1);
        resourceSegmentCount--; // deal with the last segment separately
        for (int i = sourceFolderSegmentCount; i < resourceSegmentCount; i++)
            charCount += fullPath.segment(i).length();
        String lastSegment = fullPath.segment(resourceSegmentCount);
        int extensionIndex = Util.indexOfJavaLikeExtension(lastSegment);
        charCount += extensionIndex;

        char[] result = new char[charCount];
        int offset = 0;
        for (int i = sourceFolderSegmentCount; i < resourceSegmentCount; i++) {
            String segment = fullPath.segment(i);
            int size = segment.length();
            segment.getChars(0, size, result, offset);
            offset += size;
            result[offset++] = '/';
        }
        lastSegment.getChars(0, extensionIndex, result, offset);
        return new String(result);
    }

    @Override
    public char[] getContents() {

        try {
            return Util.getResourceContentsAsCharArray(this.resource);
        } catch (CoreException e) {
            throw new AbortCompilation(true,
                    new MissingSourceFileException(this.resource.getFullPath().toString()));
        }
    }

    /**
     * @see org.eclipse.jdt.internal.compiler.env.IDependent#getFileName()
     */
    @Override
    public char[] getFileName() {
        return this.resource.getFullPath().toString().toCharArray(); // do not know what you want to return here
    }

    @Override
    public char[] getMainTypeName() {
        char[] typeName = this.initialTypeName.toCharArray();
        int lastIndex = CharOperation.lastIndexOf('/', typeName);
        return CharOperation.subarray(typeName, lastIndex + 1, -1);
    }

    @Override
    public char[][] getPackageName() {
        char[] typeName = this.initialTypeName.toCharArray();
        int lastIndex = CharOperation.lastIndexOf('/', typeName);
        return CharOperation.splitOn('/', typeName, 0, lastIndex);
    }

    @Override
    public int hashCode() {
        return this.initialTypeName.hashCode();
    }

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

    String typeLocator() {
        return this.resource.getProjectRelativePath().toString();
    }

    @Override
    public String toString() {
        return "SourceFile[" //$NON-NLS-1$
                + this.resource.getFullPath() + "]"; //$NON-NLS-1$
    }

    @Override
    public char[] getModuleName() {
        IModule mod = this.sourceLocation.module();
        return mod == null ? null : mod.name();
    }
}