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: 2 checkins (+187/-61) by Per Hedbor <ph@opera.com> Lines added/removed recently

Tuesday 02 October 2012

2012-10-02 12:07:44 (7 years ago) by Per Hedbor <ph@opera.com>

Added a two new operators: "?->" and "?:"

?-> can be used to index something that is either indexable or null.
?: is an alias for ||

Very useful for things like:

C c = a && a->b && a->b->c;

which can now be rewritten as

C c = a?->b?->c;

The code in language.yacc also supports ?. and ?[], but there are
syntax conflicts with ?: for those:

?. conflicts with expr?.Module:...
?[] conflicts wtih expr?[softcast]:...

?: was added mostly to be compatible with other 'modern' C-like
languages.

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Bugs? Suggestions?