rust-index: using `hg::index::Index` in `hg-cpython::dagops` Hooking `headrevs` to the Rust index is straightforward as long as we go the `PySharedRef` way. Direct attempts of obtaining a reference to the inner `hg::index::Index` fail for lifetime reasons: the reference is bound to the GIL, yet the `as_set` local variable is considered to be static (the borrow checker clearly does not realize or care that this set only stores `Revision` values). In `rank()`, the chosen solution is the simplest as far as `hg-cpython` is concerned, but it has the defect of removing an implementation that would be easily adaptable if the core index did implement `RankedGraph` (returning the same error as long as only `REVLOGV1` is supported), but that would introduce a direct dependency of `hg-core` on the ``vcsgraph` crate.

     1

{

     2

    // Enforcing

     3

    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison

     4

    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()

     5

    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.

     6

    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.

     7

    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)

     8

     9

    // Environments

    10

    "browser"       : true      // Web Browser (window, document, etc)

    11

}