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Truffle is a multi-language framework for executing dynamic languages
that achieves high performance when combined with Graal.
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.oracle.truffle.api.source;
/**
* Description of contiguous section of positions within a {@link Source} that does not have a
* content loaded. {@link Source#hasCharacters()} = false.
*/
abstract class SourceSectionUnloaded extends SourceSection {
SourceSectionUnloaded(Source source) {
super(source);
}
@Override
public final boolean isAvailable() {
return true;
}
@Override
final boolean isValid() {
return true;
}
@Override
public final CharSequence getCharacters() {
return "";
}
static final class Indexed extends SourceSectionUnloaded {
final int charIndex;
final int charLength;
Indexed(Source source, int charIndex, int charLength) {
super(source);
this.charIndex = charIndex;
this.charLength = charLength;
}
@Override
public boolean hasLines() {
return false;
}
@Override
public boolean hasColumns() {
return false;
}
@Override
public boolean hasCharIndex() {
return true;
}
@Override
public int getStartLine() {
return 1;
}
@Override
public int getStartColumn() {
return 1;
}
@Override
public int getEndLine() {
return 1;
}
@Override
public int getEndColumn() {
return 1;
}
@Override
public int getCharIndex() {
return charIndex;
}
@Override
public int getCharEndIndex() {
return charIndex + charLength;
}
@Override
public int getCharLength() {
return charLength;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + charIndex;
result = prime * result + charLength;
result = prime * result + getSource().hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof Indexed)) {
return false;
}
Indexed other = (Indexed) obj;
if (charIndex != other.charIndex || charLength != other.charLength) {
return false;
}
if (getSource() == null) {
if (other.getSource() != null) {
return false;
}
} else if (!getSource().equals(other.getSource())) {
return false;
}
return true;
}
}
static final class Lines extends SourceSectionUnloaded {
final int startLine;
final int endLine;
Lines(Source source, int startLine, int endLine) {
super(source);
this.startLine = startLine;
this.endLine = endLine;
}
@Override
public boolean hasLines() {
return true;
}
@Override
public boolean hasColumns() {
return false;
}
@Override
public boolean hasCharIndex() {
return false;
}
@Override
public int getStartLine() {
return startLine;
}
@Override
public int getStartColumn() {
return 1;
}
@Override
public int getEndLine() {
return endLine;
}
@Override
public int getEndColumn() {
return 1;
}
@Override
public int getCharIndex() {
return 0;
}
@Override
public int getCharEndIndex() {
return 0;
}
@Override
public int getCharLength() {
return 0;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + startLine;
result = prime * result + endLine;
result = prime * result + getSource().hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof Lines)) {
return false;
}
Lines other = (Lines) obj;
if (startLine != other.startLine || endLine != other.endLine) {
return false;
}
if (getSource() == null) {
if (other.getSource() != null) {
return false;
}
} else if (!getSource().equals(other.getSource())) {
return false;
}
return true;
}
}
static final class LinesAndColumns extends SourceSectionUnloaded {
final int startLine;
final int startColumn;
final int endLine;
final int endColumn;
LinesAndColumns(Source source, int startLine, int startColumn, int endLine, int endColumn) {
super(source);
this.startLine = startLine;
this.startColumn = startColumn;
this.endLine = endLine;
this.endColumn = endColumn;
}
@Override
public boolean hasLines() {
return true;
}
@Override
public boolean hasColumns() {
return true;
}
@Override
public boolean hasCharIndex() {
return false;
}
@Override
public int getStartLine() {
return startLine;
}
@Override
public int getStartColumn() {
return startColumn;
}
@Override
public int getEndLine() {
return endLine;
}
@Override
public int getEndColumn() {
return endColumn;
}
@Override
public int getCharIndex() {
return 0;
}
@Override
public int getCharEndIndex() {
return 0;
}
@Override
public int getCharLength() {
return 0;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + startLine;
result = prime * result + startColumn;
result = prime * result + endLine;
result = prime * result + endColumn;
result = prime * result + getSource().hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof LinesAndColumns)) {
return false;
}
LinesAndColumns other = (LinesAndColumns) obj;
if (startLine != other.startLine || startColumn != other.startColumn ||
endLine != other.endLine || endColumn != other.endColumn) {
return false;
}
if (getSource() == null) {
if (other.getSource() != null) {
return false;
}
} else if (!getSource().equals(other.getSource())) {
return false;
}
return true;
}
}
}