tryVisit is a new function which doesn't statically ensures that all types are handled by the visiting
functions. A VariantException is thrown if the algebraic holds a value which isn't handled by
the visitors.
visit and tryVisit share a common private template function as backend which does all the magic. applyDelegate and
applyVisitor have practically been merged into one new function.
The new constraint isAlgebraic checks for all member functions and types used from Algebraic and makes it hard to call the applyDelegate with arbitrary types.
- Now compiles now on 64bit. size_t -> int cast in unittest has been the problem. Unittests and documentation has been updated.
- Updated template constraints: applyDelegates doesn't need one as the previous constraint is implicitly checked during instation. applyVisitor now has an additional template constraint to just allow Algebraic types.
- Must not compile code in unittests has been replaced by static assert and __trait(compiles) checks.
applyVisitor allows to apply a visitor to the given Algebraic depending
on its held type. It works like boost::apply_visitor of Boost.Variant.
A visitor is specified as a structure
or class which implements opCall overloads for each supported type of the
Algebraic. The function statically ensures that all types are handled by the
visitor.
applyDelegate works like applyVisitor but allows to specfiy the visiting
functions as delegates or static functions. Static checks ensure that
all types are handled and only allowed delegates are passed to the function.
This enables the test suite to build with the -property switch enabled.
std.cpuid: vendor()/processor() have not been converted to properties in accordance to core.cpuid.
std.xml: Element.text() cannot be a property due to the optional parameter.
std.algorithm: defined move with one argument; levenshtein distance generalized to with all forward ranges; take now has swapped arguments
std.array: empty for arrays is now a @property; front and back for a string and wstring automatically decodes the first/last character; popFront, popBack for string and wstring obey the UTF stride
std.conv: changed the default array formatting from "[a, b, c]" to "a b c"
std.range: swapped order of arguments in take
std.stdio: added readln template
std.variant: now works with statically-sized arrays and const data
std.traits: added isNarrowString
