zigar.function.GeneratorOf(function)

Define a generator type compatible with function, whose return value must be a iterator (or an error union of one). If the iterator's next() method accepts an allocator, the generator will have an allocator attached.

Example: const std = @import("std"); const zigar = @import("zigar");

fn test1() error{InitFailed}!Iterator1 { return error.InitFailed; }

const Iterator1 = struct { pub fn next(_: *@This()) error{NextFailed}!?i32 { return null; } };

fn test2() error{InitFailed}!Iterator2 { return error.InitFailed; }

const Iterator1 = struct { pub fn next(_: *@This(), _: std.mem.Allocator) error{NextFailed}!?i32 { return null; } };

comptime { std.debug.assert(zigar.function.GeneratorOf(test1) == zigar.function.Generator(error{ InitFailed, NextFailed }!?i32), false); std.debug.assert(zigar.function.GeneratorOf(test2) == zigar.function.Generator(error{ InitFailed, NextFailed }!?i32), true); }

Arguments:

• function: anytype
  A function or a function type.

Return value:

Generator(T, true|false)