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// Copyright (c) 2015, 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.
@deprecated
library analyzer.source.embedder;
import 'dart:collection' show HashMap;
import 'dart:core';
import 'dart:io' as io;
import 'package:analyzer/file_system/file_system.dart';
import 'package:analyzer/source/package_map_provider.dart'
show PackageMapProvider;
import 'package:analyzer/src/generated/java_io.dart' show JavaFile;
import 'package:analyzer/src/generated/sdk.dart';
import 'package:analyzer/src/generated/sdk_io.dart';
import 'package:analyzer/src/generated/source.dart';
import 'package:analyzer/src/generated/source_io.dart' show FileBasedSource;
import 'package:analyzer/src/summary/idl.dart' show PackageBundle;
import 'package:yaml/yaml.dart';
export 'package:analyzer/src/context/builder.dart' show EmbedderYamlLocator;
const String _DART_COLON_PREFIX = 'dart:';
const String _EMBEDDED_LIB_MAP_KEY = 'embedded_libs';
/// Check if this map defines embedded libraries.
@deprecated
bool definesEmbeddedLibs(Map map) => map[_EMBEDDED_LIB_MAP_KEY] != null;
/// An SDK backed by URI mappings derived from an `_embedder.yaml` file.
@deprecated
class EmbedderSdk extends AbstractDartSdk {
final Map<String, String> _urlMappings = new HashMap<String, String>();
EmbedderSdk([Map<Folder, YamlMap> embedderYamls]) {
embedderYamls?.forEach(_processEmbedderYaml);
}
// TODO(danrubel) Determine SDK version
@override
String get sdkVersion => '0';
/// The url mappings for this SDK.
Map<String, String> get urlMappings => _urlMappings;
@override
PackageBundle getLinkedBundle() => null;
@override
String getRelativePathFromFile(JavaFile file) => file.getAbsolutePath();
@deprecated
@override
PackageBundle getSummarySdkBundle(bool _) => null;
@override
FileBasedSource internalMapDartUri(String dartUri) {
String libraryName;
String relativePath;
int index = dartUri.indexOf('/');
if (index >= 0) {
libraryName = dartUri.substring(0, index);
relativePath = dartUri.substring(index + 1);
} else {
libraryName = dartUri;
relativePath = "";
}
SdkLibrary library = getSdkLibrary(libraryName);
if (library == null) {
return null;
}
String srcPath;
if (relativePath.isEmpty) {
srcPath = library.path;
} else {
String libraryPath = library.path;
int index = libraryPath.lastIndexOf(io.Platform.pathSeparator);
if (index == -1) {
index = libraryPath.lastIndexOf('/');
if (index == -1) {
return null;
}
}
String prefix = libraryPath.substring(0, index + 1);
srcPath = '$prefix$relativePath';
}
String filePath = srcPath.replaceAll('/', io.Platform.pathSeparator);
try {
JavaFile file = new JavaFile(filePath);
return new FileBasedSource(file, Uri.parse(dartUri));
} on FormatException {
return null;
}
}
/// Install the mapping from [name] to [libDir]/[file].
void _processEmbeddedLibs(String name, String file, Folder libDir) {
if (!name.startsWith(_DART_COLON_PREFIX)) {
// SDK libraries must begin with 'dart:'.
return;
}
String libPath = libDir.canonicalizePath(file);
_urlMappings[name] = libPath;
SdkLibraryImpl library = new SdkLibraryImpl(name);
library.path = libPath;
libraryMap.setLibrary(name, library);
}
/// Given the 'embedderYamls' from [EmbedderYamlLocator] check each one for the
/// top level key 'embedded_libs'. Under the 'embedded_libs' key are key value
/// pairs. Each key is a 'dart:' library uri and each value is a path
/// (relative to the directory containing `_embedder.yaml`) to a dart script
/// for the given library. For example:
///
/// embedded_libs:
/// 'dart:io': '../../sdk/io/io.dart'
///
/// If a key doesn't begin with `dart:` it is ignored.
void _processEmbedderYaml(Folder libDir, YamlMap map) {
YamlNode embedded_libs = map[_EMBEDDED_LIB_MAP_KEY];
if (embedded_libs is YamlMap) {
embedded_libs.forEach((k, v) => _processEmbeddedLibs(k, v, libDir));
}
}
}
/// Given the 'embedderYamls' from [EmbedderYamlLocator] check each one for the
/// top level key 'embedded_libs'. Under the 'embedded_libs' key are key value
/// pairs. Each key is a 'dart:' library uri and each value is a path
/// (relative to the directory containing `_embedder.yaml`) to a dart script
/// for the given library. For example:
///
/// embedded_libs:
/// 'dart:io': '../../sdk/io/io.dart'
///
/// If a key doesn't begin with `dart:` it is ignored.
///
/// This class is deprecated; use DartUriResolver directly. In particular, if
/// there used to be an instance creation of the form:
///
/// ```
/// new EmbedderUriResolver(embedderMap)
/// ```
///
/// This should be replaced by
///
/// ```
/// new DartUriResolver(new EmbedderSdk(embedderMap))
/// ```
@deprecated
class EmbedderUriResolver implements DartUriResolver {
EmbedderSdk _embedderSdk;
DartUriResolver _dartUriResolver;
/// Construct a [EmbedderUriResolver] from a package map
/// (see [PackageMapProvider]).
EmbedderUriResolver(Map<Folder, YamlMap> embedderMap)
: this._forSdk(new EmbedderSdk(embedderMap));
/// (Provisional API.)
EmbedderUriResolver._forSdk(this._embedderSdk) {
_dartUriResolver = new DartUriResolver(_embedderSdk);
}
@override
DartSdk get dartSdk => _embedderSdk;
/// Number of embedded libraries.
int get length => _embedderSdk?.urlMappings?.length ?? 0;
@override
void clearCache() {}
@override
Source resolveAbsolute(Uri uri, [Uri actualUri]) =>
_dartUriResolver.resolveAbsolute(uri, actualUri);
@override
Uri restoreAbsolute(Source source) {
String path = source.fullName;
if (path.length > 3 && path[1] == ':' && path[2] == '\\') {
path = '/${path[0]}:${path.substring(2).replaceAll('\\', '/')}';
}
Source sdkSource = dartSdk.fromFileUri(Uri.parse('file://$path'));
return sdkSource?.uri;
}
}