| /*=============================================================================# |
| # Copyright (c) 2011, 2018 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.rj.server.dbg; |
| |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| |
| @NonNullByDefault |
| public class Srcref { |
| |
| |
| public static final int BEGIN_LINE= 0; |
| public static final int BEGIN_COLUMN= 4; |
| public static final int BEGIN_BYTE= 1; |
| |
| public static final int END_LINE= 2; |
| public static final int END_COLUMN= 5; |
| public static final int END_BYTE= 3; |
| |
| public static final int NA= Integer.MIN_VALUE; |
| |
| |
| public static final int[] copy(final int[] srcref) { |
| final int[] clone= new int[6]; |
| System.arraycopy(srcref, 0, clone, 0, 6); |
| return clone; |
| } |
| |
| public static final int addLine(final int main, final int ref) { |
| if (main > 0 && ref > 0) { |
| return main + ref - 1; |
| } |
| else { |
| return NA; |
| } |
| } |
| |
| public static final int @Nullable [] substract(final int[] main, final int[] ref) { |
| final int[] result= new int[6]; |
| |
| if (main[BEGIN_LINE] > 0 && ref[BEGIN_LINE] > 0) { |
| result[BEGIN_LINE]= 1 + main[BEGIN_LINE] - ref[BEGIN_LINE]; |
| if (result[BEGIN_LINE] <= 0) { |
| return null; |
| } |
| } |
| else { |
| result[BEGIN_LINE]= NA; |
| } |
| if (result[BEGIN_LINE] == 1) { |
| if (main[BEGIN_COLUMN] > 0 && ref[BEGIN_COLUMN] > 0) { |
| result[BEGIN_COLUMN]= 1 + main[BEGIN_COLUMN] - ref[BEGIN_COLUMN]; |
| if (result[BEGIN_COLUMN] <= 0) { |
| return null; |
| } |
| } |
| else { |
| result[BEGIN_COLUMN]= NA; |
| } |
| if (main[BEGIN_BYTE] > 0 && ref[BEGIN_BYTE] > 0) { |
| result[BEGIN_BYTE]= 1 + main[BEGIN_BYTE] - ref[BEGIN_BYTE]; |
| if (result[BEGIN_BYTE] <= 0) { |
| result[BEGIN_BYTE]= NA; |
| } |
| } |
| else { |
| result[BEGIN_BYTE]= NA; |
| } |
| } |
| else { |
| result[BEGIN_COLUMN]= main[BEGIN_COLUMN]; |
| result[BEGIN_BYTE]= NA; |
| } |
| |
| if (main[END_LINE] > 0 && ref[BEGIN_LINE] > 0) { |
| result[END_LINE]= 1 + main[END_LINE] - ref[BEGIN_LINE]; |
| if (result[END_LINE] <= 0) { |
| return null; |
| } |
| } |
| else { |
| result[END_LINE]= NA; |
| } |
| if (result[END_LINE] == 1) { |
| if (main[END_COLUMN] > 0 && ref[BEGIN_COLUMN] > 0) { |
| result[END_COLUMN]= 1 + main[END_COLUMN] - ref[BEGIN_COLUMN]; |
| if (result[END_COLUMN] <= 0) { |
| return null; |
| } |
| } |
| else { |
| result[END_COLUMN]= NA; |
| } |
| if (main[END_BYTE] > 0 && ref[BEGIN_BYTE] > 0) { |
| result[END_BYTE]= 1 + main[END_BYTE] - ref[BEGIN_BYTE]; |
| if (result[END_BYTE] <= 0) { |
| result[END_BYTE]= NA; |
| } |
| } |
| else { |
| result[END_BYTE]= NA; |
| } |
| } |
| else { |
| result[END_COLUMN]= main[END_COLUMN]; |
| result[END_BYTE]= NA; |
| } |
| |
| return result; |
| } |
| |
| public static final int[] add(final int[] main, final int[] ref) { |
| final int[] result= new int[6]; |
| |
| result[BEGIN_LINE]= addLine(main[BEGIN_LINE], ref[BEGIN_LINE]); |
| if (main[BEGIN_LINE] == 1) { |
| if (main[BEGIN_COLUMN] > 0 && ref[BEGIN_COLUMN] > 0) { |
| result[BEGIN_COLUMN]= main[BEGIN_COLUMN] + ref[BEGIN_COLUMN] - 1; |
| } |
| else { |
| result[BEGIN_COLUMN]= NA; |
| } |
| if (main[BEGIN_BYTE] > 0 && ref[BEGIN_BYTE] > 0) { |
| result[BEGIN_BYTE]= main[BEGIN_BYTE] + ref[BEGIN_BYTE] - 1; |
| } |
| else { |
| result[BEGIN_BYTE]= NA; |
| } |
| } |
| else { |
| result[BEGIN_COLUMN]= main[BEGIN_COLUMN]; |
| result[BEGIN_BYTE]= main[BEGIN_BYTE]; |
| } |
| |
| result[END_LINE]= addLine(main[END_LINE], ref[BEGIN_LINE]); |
| if (main[END_LINE] == 1) { |
| if (main[BEGIN_COLUMN] > 0 && ref[END_COLUMN] > 0) { |
| result[END_COLUMN]= main[BEGIN_COLUMN] + ref[END_COLUMN] - 1; |
| } |
| else { |
| result[END_COLUMN]= NA; |
| } |
| if (main[BEGIN_BYTE] > 0 && ref[END_BYTE] > 0) { |
| result[END_BYTE]= main[BEGIN_BYTE] + ref[END_BYTE] - 1; |
| } |
| else { |
| result[END_BYTE]= NA; |
| } |
| } |
| else { |
| result[END_COLUMN]= main[END_COLUMN]; |
| result[END_BYTE]= main[END_BYTE]; |
| } |
| |
| return result; |
| } |
| |
| |
| public static final int[] merge(final int[] main, final int[] last) { |
| final int[] result= copy(main); |
| if (last != main && last[END_LINE] > 0) { |
| if (last[END_LINE] == result[END_LINE]) { |
| if (last[END_COLUMN] > 0 && last[END_COLUMN] > result[END_COLUMN]) { |
| result[END_COLUMN]= last[END_COLUMN]; |
| result[END_BYTE]= last[END_BYTE]; |
| } |
| } |
| else if (last[END_LINE] > result[END_LINE]) { |
| result[END_LINE]= last[END_LINE]; |
| result[END_COLUMN]= last[END_COLUMN]; |
| result[END_BYTE]= last[END_BYTE]; |
| } |
| } |
| return result; |
| } |
| |
| public static final boolean equalsStart(final int[] srcref1, final int[] srcref2) { |
| return (srcref1[BEGIN_LINE] == srcref2[BEGIN_LINE] |
| && srcref1[BEGIN_COLUMN] == srcref2[BEGIN_COLUMN]); |
| } |
| |
| public static final boolean contains(final int[] srcref1, final int[] srcref2) { |
| return (((srcref1[BEGIN_LINE] == srcref2[BEGIN_LINE]) ? |
| (srcref1[BEGIN_COLUMN] <= srcref2[BEGIN_COLUMN]) : |
| (srcref1[BEGIN_LINE] < srcref2[BEGIN_LINE]) ) |
| && ((srcref1[END_LINE] == srcref2[END_LINE]) ? |
| (srcref1[END_COLUMN] >= srcref2[END_COLUMN]) : |
| (srcref1[END_LINE] > srcref2[END_LINE]) ) ); |
| } |
| |
| public static final boolean equalsDim(final int[] srcref1, final int[] srcref2) { |
| return (srcref1[END_LINE] - srcref1[BEGIN_LINE] == srcref2[Srcref.END_LINE] - srcref2[BEGIN_LINE] |
| && srcref1[END_COLUMN] - srcref1[BEGIN_COLUMN] == srcref2[Srcref.END_COLUMN] - srcref2[BEGIN_COLUMN]); |
| } |
| |
| } |