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Unified Diff: pkg/polymer/tool/create_message_details_page.dart

Issue 513023002: Step one towards stable error messages with details: (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 3 months ago
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Index: pkg/polymer/tool/create_message_details_page.dart
diff --git a/pkg/polymer/tool/create_message_details_page.dart b/pkg/polymer/tool/create_message_details_page.dart
new file mode 100644
index 0000000000000000000000000000000000000000..1724f725fbe38fb0d16a947ca77ba1ab3fe7dc23
--- /dev/null
+++ b/pkg/polymer/tool/create_message_details_page.dart
@@ -0,0 +1,188 @@
+// 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.
+
+/// Simple script to generate a page summarizing all error messages produces by
+/// the polymer compiler code. The generated code will be placed directly under
+/// the `polymer/lib/src/generated` folder. This script should be invoked from
+/// the root of the polymer package either by doing:
+///
+/// dart tool/create_message_details_page.dart
+///
+/// or
+///
+/// pub run tool/create_message_details_page
+library polymer.tool.create_message_details_page;
+
+import 'dart:io';
+import 'dart:mirrors';
+
+import 'package:code_transformers/messages/messages.dart';
+import 'package:code_transformers/src/messages.dart' as m1; // used via mirrors
+import 'package:observe/src/messages.dart' as m2; // used via mirrors
+import 'package:polymer/src/build/messages.dart' as m3; // used via mirrors
+import 'package:markdown/markdown.dart';
+import 'package:path/path.dart' as path;
+
+main() {
+ var seen = {};
+ var templates = [];
+ _getMessagesFrom(#polymer.src.build.messages, seen, templates);
+ _getMessagesFrom(#code_transformers.src.messages, seen, templates);
+ _getMessagesFrom(#observe.src.messages, seen, templates);
+
+ templates.sort((a, b) => a.id.compareTo(b.id));
+ var sb = new StringBuffer();
+ sb.write(_HEADER);
+
+ var lastPackage = '';
+ for (var t in templates) {
+ if (lastPackage != t.id.package) {
+ lastPackage = t.id.package;
+ sb.write(markdownToHtml(
+ '#Messages from package `$lastPackage`\n\n----\n'));
+ }
+ sb.write(_htmlFor(t));
+ }
+ sb.write(_FOOTER);
+ new File('lib/src/build/generated/messages.html')
+ .writeAsStringSync(sb.toString());
+}
+
+final _mirrors = currentMirrorSystem();
+
+_getMessagesFrom(Symbol libName, Map seen, List templates) {
+ var lib = _mirrors.findLibrary(libName);
+ lib.declarations.forEach((symbol, decl) {
+ if (decl is! VariableMirror) return;
+ var template = lib.getField(symbol).reflectee;
+ var name = MirrorSystem.getName(symbol);
+ if (template is! MessageTemplate) return;
+ var id = template.id;
+ if (seen.containsKey(id)) {
+ print('error: duplicate id `$id`. '
+ 'Currently set for both `$name` and `${seen[id]}`.');
+ }
+ seen[id] = name;
+ templates.add(template);
+ });
+}
+
+_htmlFor(MessageTemplate template) {
+ var details = template.details == null
+ ? 'No details available' : template.details;
+ var id = template.id;
+ var hashTag = 'msg_${id.package}_${id.id}';
+ var markdown =
+ '## ${template.description} [#${id.id}](#$hashTag)\n\n$details\n\n----\n';
+ var html = markdownToHtml(markdown);
+ // We add the anchor inside the <h2> title, otherwise the link doesn't work.
+ return '\n\n${html.replaceFirst("<h2>", "<h2 id=\"$hashTag\">")}';
+}
+
+const _HEADER = '''
+<!doctype html>
+<!--
+ This file is autogenerated with polymer/tool/create_message_details_page.dart
+-->
+<html>
+<style>
+@font-face {
+ font-family: 'Montserrat';
+ font-style: normal;
+ font-weight: 400;
+ src: url(https://themes.googleusercontent.com/static/fonts/montserrat/v4/zhcz-_WihjSQC0oHJ9TCYL3hpw3pgy2gAi-Ip7WPMi0.woff) format('woff');
+}
+@font-face {
+ font-family: 'Montserrat';
+ font-style: normal;
+ font-weight: 700;
+ src: url(https://themes.googleusercontent.com/static/fonts/montserrat/v4/IQHow_FEYlDC4Gzy_m8fcnbFhgvWbfSbdVg11QabG8w.woff) format('woff');
+}
+@font-face {
+ font-family: 'Roboto';
+ font-style: normal;
+ font-weight: 300;
+ src: url(https://themes.googleusercontent.com/static/fonts/roboto/v10/Hgo13k-tfSpn0qi1SFdUfbO3LdcAZYWl9Si6vvxL-qU.woff) format('woff');
+}
+@font-face {
+ font-family: 'Roboto';
+ font-style: normal;
+ font-weight: 400;
+ src: url(https://themes.googleusercontent.com/static/fonts/roboto/v10/CrYjSnGjrRCn0pd9VQsnFOvvDin1pK8aKteLpeZ5c0A.woff) format('woff');
+}
+
+body {
+ width: 80vw;
+ margin: 20px;
+ font-family: Roboto, sans-serif;
+}
+
+h1 {
+ font-family: Montserrat, sans-serif;
+ box-sizing: border-box;
+ color: rgb(72, 72, 72);
+ display: block;
+ font-style: normal;
+ font-variant: normal;
+ font-weight: normal;
+}
+
+h2 {
+ font-family: Montserrat, sans-serif;
+ box-sizing: border-box;
+ color: rgb(72, 72, 72);
+ display: block;
+ font-style: normal;
+ font-variant: normal;
+ font-weight: normal;
+}
+
+pre {
+ display: block;
+ padding: 9.5px;
+ margin: 0 0 10px;
+ line-height: 1.42857143;
+ color: #333;
+ word-break: break-all;
+ word-wrap: break-word;
+ background-color: #f5f5f5;
+ border: 1px solid #ccc;
+ border-radius: 4px;
+}
+
+code {
+ font-family: Menlo,Monaco,Consolas,"Courier New",monospace;
+ box-sizing: border-box;
+ padding: 0;
+ font-size: 90%;
+ color: #0084c5;
+ white-space: nowrap;
+ border-radius: 4px;
+ background-color: #f9f2f4;
+}
+
+pre > code {
+ white-space: inherit;
+}
+
+a {
+ color: rgb(42, 100, 150);
+}
+
+h2 > a {
+ display: none;
+ font-size: 0.8em;
+}
+
+h2:hover > a {
+ display: inline;
+}
+</style>
+<body>
+''';
+
+const _FOOTER = '''
+</body>
+</html>
+''';
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