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Unified Diff: pkg/compiler/lib/src/source_file_provider.dart

Issue 693183006: Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: pkg/compiler/lib/src/source_file_provider.dart
diff --git a/pkg/compiler/lib/src/source_file_provider.dart b/pkg/compiler/lib/src/source_file_provider.dart
deleted file mode 100644
index a511fff5b3137102001bf849d93137a9de10c4de..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/source_file_provider.dart
+++ /dev/null
@@ -1,323 +0,0 @@
-// Copyright (c) 2013, 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_file_provider;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-import 'dart:math' as math;
-
-import '../compiler.dart' as api show Diagnostic, DiagnosticHandler;
-import 'dart2js.dart' show AbortLeg;
-import 'colors.dart' as colors;
-import 'source_file.dart';
-import 'filenames.dart';
-import 'util/uri_extras.dart';
-import 'dart:typed_data';
-
-List<int> readAll(String filename) {
- var file = (new File(filename)).openSync();
- var length = file.lengthSync();
- // +1 to have a 0 terminated list, see [Scanner].
- var buffer = new Uint8List(length + 1);
- var bytes = file.readIntoSync(buffer, 0, length);
- file.closeSync();
- return buffer;
-}
-
-abstract class SourceFileProvider {
- bool isWindows = (Platform.operatingSystem == 'windows');
- Uri cwd = currentDirectory;
- Map<String, SourceFile> sourceFiles = <String, SourceFile>{};
- int dartCharactersRead = 0;
-
- Future<String> readStringFromUri(Uri resourceUri) {
- return readUtf8BytesFromUri(resourceUri).then(UTF8.decode);
- }
-
- Future<List<int>> readUtf8BytesFromUri(Uri resourceUri) {
- if (resourceUri.scheme == 'file') {
- return _readFromFile(resourceUri);
- } else if (resourceUri.scheme == 'http' || resourceUri.scheme == 'https') {
- return _readFromHttp(resourceUri);
- } else {
- throw new ArgumentError("Unknown scheme in uri '$resourceUri'");
- }
- }
-
- Future<List<int>> _readFromFile(Uri resourceUri) {
- assert(resourceUri.scheme == 'file');
- List<int> source;
- try {
- source = readAll(resourceUri.toFilePath());
- } on FileSystemException catch (ex) {
- return new Future.error(
- "Error reading '${relativize(cwd, resourceUri, isWindows)}' "
- "(${ex.osError})");
- }
- dartCharactersRead += source.length;
- sourceFiles[resourceUri.toString()] =
- new CachingUtf8BytesSourceFile(relativizeUri(resourceUri), source);
- return new Future.value(source);
- }
-
- Future<List<int>> _readFromHttp(Uri resourceUri) {
- assert(resourceUri.scheme == 'http');
- HttpClient client = new HttpClient();
- return client.getUrl(resourceUri)
- .then((HttpClientRequest request) => request.close())
- .then((HttpClientResponse response) {
- if (response.statusCode != HttpStatus.OK) {
- String msg = 'Failure getting $resourceUri: '
- '${response.statusCode} ${response.reasonPhrase}';
- throw msg;
- }
- return response.toList();
- })
- .then((List<List<int>> splitContent) {
- int totalLength = splitContent.fold(0, (int old, List list) {
- return old + list.length;
- });
- Uint8List result = new Uint8List(totalLength);
- int offset = 0;
- for (List<int> contentPart in splitContent) {
- result.setRange(
- offset, offset + contentPart.length, contentPart);
- offset += contentPart.length;
- }
- dartCharactersRead += totalLength;
- sourceFiles[resourceUri.toString()] =
- new CachingUtf8BytesSourceFile(resourceUri.toString(), result);
- return result;
- });
- }
-
- Future/*<List<int> | String>*/ call(Uri resourceUri);
-
- relativizeUri(Uri uri) => relativize(cwd, uri, isWindows);
-}
-
-class CompilerSourceFileProvider extends SourceFileProvider {
- Future<List<int>> call(Uri resourceUri) => readUtf8BytesFromUri(resourceUri);
-}
-
-class FormattingDiagnosticHandler {
- final SourceFileProvider provider;
- bool showWarnings = true;
- bool showHints = true;
- bool verbose = false;
- bool isAborting = false;
- bool enableColors = false;
- bool throwOnError = false;
- int throwOnErrorCount = 0;
- api.Diagnostic lastKind = null;
- int fatalCount = 0;
-
- final int FATAL = api.Diagnostic.CRASH.ordinal | api.Diagnostic.ERROR.ordinal;
- final int INFO =
- api.Diagnostic.INFO.ordinal | api.Diagnostic.VERBOSE_INFO.ordinal;
-
- FormattingDiagnosticHandler([SourceFileProvider provider])
- : this.provider =
- (provider == null) ? new CompilerSourceFileProvider() : provider;
-
- void info(var message, [api.Diagnostic kind = api.Diagnostic.VERBOSE_INFO]) {
- if (!verbose && kind == api.Diagnostic.VERBOSE_INFO) return;
- if (enableColors) {
- print('${colors.green("Info:")} $message');
- } else {
- print('Info: $message');
- }
- }
-
- /// Adds [kind] specific prefix to [message].
- String prefixMessage(String message, api.Diagnostic kind) {
- switch (kind) {
- case api.Diagnostic.ERROR:
- return 'Error: $message';
- case api.Diagnostic.WARNING:
- return 'Warning: $message';
- case api.Diagnostic.HINT:
- return 'Hint: $message';
- case api.Diagnostic.CRASH:
- return 'Internal Error: $message';
- case api.Diagnostic.INFO:
- case api.Diagnostic.VERBOSE_INFO:
- return 'Info: $message';
- }
- throw 'Unexpected diagnostic kind: $kind (${kind.ordinal})';
- }
-
- void diagnosticHandler(Uri uri, int begin, int end, String message,
- api.Diagnostic kind) {
- // TODO(ahe): Remove this when source map is handled differently.
- if (identical(kind.name, 'source map')) return;
-
- if (isAborting) return;
- isAborting = (kind == api.Diagnostic.CRASH);
-
- bool fatal = (kind.ordinal & FATAL) != 0;
- bool isInfo = (kind.ordinal & INFO) != 0;
- if (isInfo && uri == null && kind != api.Diagnostic.INFO) {
- info(message, kind);
- return;
- }
-
- message = prefixMessage(message, kind);
-
- // [previousKind]/[lastKind] records the previous non-INFO kind we saw.
- // This is used to suppress info about a warning when warnings are
- // suppressed, and similar for hints.
- var previousKind = lastKind;
- if (kind != api.Diagnostic.INFO) {
- lastKind = kind;
- }
- var color;
- if (kind == api.Diagnostic.ERROR) {
- color = colors.red;
- } else if (kind == api.Diagnostic.WARNING) {
- if (!showWarnings) return;
- color = colors.magenta;
- } else if (kind == api.Diagnostic.HINT) {
- if (!showHints) return;
- color = colors.cyan;
- } else if (kind == api.Diagnostic.CRASH) {
- color = colors.red;
- } else if (kind == api.Diagnostic.INFO) {
- if (lastKind == api.Diagnostic.WARNING && !showWarnings) return;
- if (lastKind == api.Diagnostic.HINT && !showHints) return;
- color = colors.green;
- } else {
- throw 'Unknown kind: $kind (${kind.ordinal})';
- }
- if (!enableColors) {
- color = (x) => x;
- }
- if (uri == null) {
- print('${color(message)}');
- } else {
- SourceFile file = provider.sourceFiles[uri.toString()];
- if (file != null) {
- print(file.getLocationMessage(
- color(message), begin, end, colorize: color));
- } else {
- print('${provider.relativizeUri(uri)}@$begin+${end - begin}:'
- ' [$kind] ${color(message)}');
- }
- }
- if (fatal && ++fatalCount >= throwOnErrorCount && throwOnError) {
- isAborting = true;
- throw new AbortLeg(message);
- }
- }
-
- void call(Uri uri, int begin, int end, String message, api.Diagnostic kind) {
- return diagnosticHandler(uri, begin, end, message, kind);
- }
-}
-
-typedef void MessageCallback(String message);
-
-class RandomAccessFileOutputProvider {
- final Uri out;
- final Uri sourceMapOut;
- final MessageCallback onInfo;
- final MessageCallback onFailure;
-
- int totalCharactersWritten = 0;
- List<String> allOutputFiles = new List<String>();
-
- RandomAccessFileOutputProvider(this.out,
- this.sourceMapOut,
- {this.onInfo,
- this.onFailure});
-
- static Uri computePrecompiledUri(Uri out) {
- String extension = 'precompiled.js';
- String outPath = out.path;
- if (outPath.endsWith('.js')) {
- outPath = outPath.substring(0, outPath.length - 3);
- return out.resolve('$outPath.$extension');
- } else {
- return out.resolve(extension);
- }
- }
-
- EventSink<String> call(String name, String extension) {
- Uri uri;
- String sourceMapFileName;
- bool isPrimaryOutput = false;
- if (name == '') {
- if (extension == 'js' || extension == 'dart') {
- isPrimaryOutput = true;
- uri = out;
- sourceMapFileName =
- sourceMapOut.path.substring(sourceMapOut.path.lastIndexOf('/') + 1);
- } else if (extension == 'precompiled.js') {
- uri = computePrecompiledUri(out);
- onInfo("File ($uri) is compatible with header"
- " \"Content-Security-Policy: script-src 'self'\"");
- } else if (extension == 'js.map' || extension == 'dart.map') {
- uri = sourceMapOut;
- } else if (extension == 'info.html' || extension == "info.json") {
- String outName = out.path.substring(out.path.lastIndexOf('/') + 1);
- uri = out.resolve('$outName.$extension');
- } else {
- onFailure('Unknown extension: $extension');
- }
- } else {
- uri = out.resolve('$name.$extension');
- }
-
- if (uri.scheme != 'file') {
- onFailure('Unhandled scheme ${uri.scheme} in $uri.');
- }
-
- RandomAccessFile output;
- try {
- output = new File(uri.toFilePath()).openSync(mode: FileMode.WRITE);
- } on FileSystemException catch(e) {
- onFailure('$e');
- }
-
- allOutputFiles.add(relativize(currentDirectory, uri, Platform.isWindows));
-
- int charactersWritten = 0;
-
- writeStringSync(String data) {
- // Write the data in chunks of 8kb, otherwise we risk running OOM.
- int chunkSize = 8*1024;
-
- int offset = 0;
- while (offset < data.length) {
- output.writeStringSync(
- data.substring(offset, math.min(offset + chunkSize, data.length)));
- offset += chunkSize;
- }
- charactersWritten += data.length;
- }
-
- onDone() {
- output.closeSync();
- if (isPrimaryOutput) {
- totalCharactersWritten += charactersWritten;
- }
- }
-
- return new EventSinkWrapper(writeStringSync, onDone);
- }
-}
-
-class EventSinkWrapper extends EventSink<String> {
- var onAdd, onClose;
-
- EventSinkWrapper(this.onAdd, this.onClose);
-
- void add(String data) => onAdd(data);
-
- void addError(error, [StackTrace stackTrace]) => throw error;
-
- void close() => onClose();
-}
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