blob: e0c107bf74554a738a0d9a3c6baa5387b8b6eab6 [file] [log] [blame]
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library source_maps.span_wrapper;
import 'package:source_span/source_span.dart' as source_span;
import '../span.dart';
/// A wrapper that exposes a [source_span.SourceSpan] as a [Span].
class SpanWrapper extends Span {
final source_span.SourceSpan _inner;
String get text => _inner.text;
SpanWrapper(source_span.SourceSpan inner, bool isIdentifier)
: _inner = inner,
new LocationWrapper(inner.start),
new LocationWrapper(inner.end),
static Span wrap(span, [bool isIdentifier = false]) {
if (span is Span) return span;
return new SpanWrapper(span, isIdentifier);
/// A wrapper that exposes a [source_span.SourceLocation] as a [Location].
class LocationWrapper extends Location {
final source_span.SourceLocation _inner;
String get sourceUrl => _inner.sourceUrl.toString();
int get line => _inner.line;
int get column => _inner.column;
LocationWrapper(source_span.SourceLocation inner)
: _inner = inner,
static Location wrap(location) {
if (location is Location) return location;
return new LocationWrapper(location);
/// A wrapper that exposes a [source_span.SourceFile] as a [SourceFile].
class SourceFileWrapper implements SourceFile {
final source_span.SourceFile _inner;
// These are necessary to avoid analyzer warnings;
final _lineStarts = null;
final _decodedChars = null;
String get url => _inner.url.toString();
static SourceFile wrap(sourceFile) {
if (sourceFile is SourceFile) return sourceFile;
return new SourceFileWrapper(sourceFile);
Span span(int start, [int end, bool isIdentifier = false]) {
if (end == null) end = start;
return new SpanWrapper(_inner.span(start, end), isIdentifier);
Location location(int offset) => new LocationWrapper(_inner.location(offset));
int getLine(int offset) => _inner.getLine(offset);
int getColumn(int line, int offset) => _inner.getColumn(offset, line: line);
int getOffset(int line, int column) => _inner.getOffset(line, column);
String getText(int start, [int end]) => _inner.getText(start, end);
String getLocationMessage(String message, int start, int end,
{bool useColors: false, String color}) {
return span(start, end).getLocationMessage(message,
useColors: useColors, color: color);