sdk/lib/core/map.dart - Issue 27308003: Document that concurrent modification is bad, m'kay.

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Unified Diff: sdk/lib/core/map.dart

Issue 27308003: Document that concurrent modification is bad, m'kay. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Cannot be misread as iterating changing the length. Created 7 years, 2 months ago

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Index: sdk/lib/core/map.dart

diff --git a/sdk/lib/core/map.dart b/sdk/lib/core/map.dart

index 38cb7cf3bf5e0a947ad659543a2d7ae3585f325e..b92d5cce657d52f1ebd42288830bc307e58cc629 100644

--- a/sdk/lib/core/map.dart

+++ b/sdk/lib/core/map.dart

@@ -9,6 +9,12 @@ part of dart.core;

* by using its associated key.

* Each key can occur at most once in a map.

+ *

+ * It is generally not allowed to modify the map (add or remove keys) while

+ * an operation is being performed on the map, for example in functions called

+ * during a [forEach] or [putIfAbsent] call.

+ * Modifying the map while iterating the keys or values will also most likely

+ * break the iteration.

abstract class Map<K, V> {

/**

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