yage.core.cache

Authors:
Eric Poggel

License:
LGPL v3

$(DDOC_MODULE_MEMBERS

class RegexCache ;

This class caches expensive structures (calculating them when they're first needed) so they don't have to be regenerated.

static RegExpT getRegex (char[] exp);

struct Cache (alias func);

Wrap a function so that when it's called more than once with the same arguments, subsequent results are returned from a cache.

Limitations:
The function must be pure (obviously). The function used must either be a top-level function or a static nested function that doesn't reference any local variables.

Example:

 static bool foo(int a, float b) { return a>b; }

 Cache!(foo) fooCached;

 fooCached(1, 3.5f); // body of foo is executed
 fooCached(1, 3.5f); // body of foo is not executed, previous result returned.