Enum member isSaveableLexer

Checks whether its argument is a saveable lexer.

A saveable lexer is a lexer enhanced with a save method analogous to the save method of ForwardRanges.

Declaration


enum isSaveableLexer(L) = isLexer!L && is(typeof((inout int = 0)
{
L lexer1;
L lexer2 = lexer1.save();
}
));

Parameters

Name	Description
L	the type to be tested

Returns

true if L is a lexer (as specified by isLexer) and also supports the save method as specified here; false otherwise

Specification

The type shall support at least:

all methods and aliases specified by isLexer
L save(): returns an independent copy of the current lexer; the copy must start at the position the original lexer was when this method was called; the two copies shall be independent, in that advancing one does not advance the other.

Authors

Lodovico Giaretta

Copyright

Copyright Lodovico Giaretta 2016 --

License

Boost License 1.0.