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Unified Diff: test/codegen/lib/mirrors/metadata_test.dart

Issue 2265533002: Add mirrors tests (Closed) Base URL: https://github.com/dart-lang/dev_compiler.git@master
Patch Set: Created 4 years, 4 months ago
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Index: test/codegen/lib/mirrors/metadata_test.dart
diff --git a/test/codegen/lib/mirrors/metadata_test.dart b/test/codegen/lib/mirrors/metadata_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..2e1c854be28f4e581e533d1916d45fe8cb095b11
--- /dev/null
+++ b/test/codegen/lib/mirrors/metadata_test.dart
@@ -0,0 +1,71 @@
+// 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 test.metadata_test;
+
+import 'dart:mirrors';
+
+const string = 'a metadata string';
+
+const symbol = const Symbol('symbol');
+
+const hest = 'hest';
+
+@symbol @string
+class MyClass {
+ @hest @hest @symbol
+ var x;
+ var y;
+
+ @string @symbol @string
+ myMethod() => 1;
+ myOtherMethod() => 2;
+}
+
+checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
+ List metadata = mirror.metadata.map((m) => m.reflectee).toList();
+ if (metadata == null) {
+ throw 'Null metadata on $mirror';
+ }
+ int expectedLength = expectedMetadata.length;
+ int actualLength = metadata.length;
+ if (expectedLength != actualLength) {
+ throw 'Expected length = $expectedLength, but got length = $actualLength.';
+ }
+ for (int i = 0; i < expectedLength; i++) {
+ if (metadata[i] != expectedMetadata[i]) {
+ throw '${metadata[i]} is not "${expectedMetadata[i]}"'
+ ' in $mirror at index $i';
+ }
+ }
+ print(metadata);
+}
+
+@symbol @string @symbol
+main() {
+ if (MirrorSystem.getName(symbol) != 'symbol') {
+ // This happened in dart2js due to how early library metadata is
+ // computed.
+ throw 'Bad constant: $symbol';
+ }
+
+ MirrorSystem mirrors = currentMirrorSystem();
+ ClassMirror myClassMirror = reflectClass(MyClass);
+ checkMetadata(myClassMirror, [symbol, string]);
+ LibraryMirror lib = mirrors.findLibrary(#test.metadata_test);
+ MethodMirror function = lib.declarations[#main];
+ checkMetadata(function, [symbol, string, symbol]);
+ MethodMirror method = myClassMirror.declarations[#myMethod];
+ checkMetadata(method, [string, symbol, string]);
+ method = myClassMirror.declarations[#myOtherMethod];
+ checkMetadata(method, []);
+
+ VariableMirror xMirror = myClassMirror.declarations[#x];
+ checkMetadata(xMirror, [hest, hest, symbol]);
+
+ VariableMirror yMirror = myClassMirror.declarations[#y];
+ checkMetadata(yMirror, []);
+
+ // TODO(ahe): Test local functions.
+}
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