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Function std.uni.InversionList.toSourceCode
Generates string with D source code of unary function with name of
funcNamedchar argument. If funcNameempty
the code is adjusted to be a lambda function.
The function generated tests if the passed belongs to this set or not. The result is to be used with string mixin. The intended usage area is aggressive optimization via meta programming in parser generators and the like.
Prototype
string toSourceCode( string funcName = "" );
Note
Use with care for relatively small or regular sets. It could end up being slower then just using multi-staged tables.
Example
import std.stdio; // construct set directly from [a, b$RPAREN intervals auto set = CodepointSet(10, 12, 45, 65, 100, 200); writeln(set); writeln(set.toSourceCode("func"));
The above outputs something along the lines of:
bool func(dchar ch) @safe pure nothrow @nogc
{
if(ch < 45)
{
if(ch == 10 || ch == 11) return true;
return false;
}
else if (ch < 65) return true;
else
{
if(ch < 100) return false;
if(ch < 200) return true;
return false;
}
}
Authors
Dmitry Olshansky