Module lens 

The symbol lens’s model: the names on one diff line, how far each one reaches, and every use of them on a line the diff shows. A local name reaches as far as its enclosing function; a function, method or type (a definition, a call or a type position) reaches across every file of the diff. The names come from the parse tree, so only the identifiers of the code count.

Structs

LensData

A built lens: the line it was opened on, its names, and their uses.

LensFile

One file of the diff, as the worker reads it: both sides’ text and the line numbers the diff shows on each, a deleted line on the old side and an added or context line on the new one, so a context line counts once.

LensOrigin

The diff line the lens was opened on.

LensSymbol

LensUse

One use of a symbol on a line the diff shows.

Enums

Reach

How far a symbol’s uses are looked for.

Constants

MAX_SYMBOLS

The most names one line’s lens labels, one per digit key.

Functions

compute

Build the lens for origin over files. It parses both sides of every file, so it belongs on a worker thread.

lens_files

The files of model as compute reads them.