feat: implement Map.keys, Map.values iterators and proper toString with key-value formatting

Add MapKeySequence and MapValueSequence classes in core.wren to expose iterable key and value views on Map instances. Implement native iterate_, keyIteratorValue_, and valueIteratorValue_ primitives in wren_core.c to support these sequences. Replace the stub Map.toString with a full implementation that iterates keys and formats each entry as "key: value", handling empty maps and nested maps correctly. Include comprehensive test suites for key iteration, value iteration, iterator type validation, and toString output across multiple orderings.

This commit is contained in:

Bob Nystrom

2015-01-25 18:27:38 +00:00

parent 56123c71e3

commit f093d0a42a

9 changed files with 250 additions and 4 deletions

test/map/key_iterate_iterator_not_int.wren

View File

@@ -0,0 +1,2 @@
 var a = {1: 2, 3: 4}
 a.keys.iterate(1.5) // expect runtime error: Iterator must be an integer.