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Unified Diff: frog/leg/lib/core.dart

Issue 9027002: Support factory methods. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: '' Created 9 years ago
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Index: frog/leg/lib/core.dart
===================================================================
--- frog/leg/lib/core.dart (revision 2746)
+++ frog/leg/lib/core.dart (working copy)
@@ -242,12 +242,21 @@
throw "Unimplemented user-defined length.";
}
+bool isInt(var v) {
+ return JS(@"($0 | 0) === $1", v, v);
+}
+
class int {}
class double {}
class String {}
class bool {}
class Object {}
-class List<T> {}
+class List<T> {
+ factory List(int n) {
+ if (!isInt(n)) throw "Invalid length";
ahe 2011/12/22 13:32:39 What about negative sizes?
ngeoffray 2011/12/22 13:50:23 Done.
+ return JS(@"new Array($0)", n);
+ }
+}
class Expect {
static void equals(var expected, var actual) {

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