Call Graph Butterfly

Call Graph (Butterfly)

Shows callers and callees of one symbol together in a single "butterfly" view. Reach for it to see both directions of a symbol's call graph at once.

Running it from the CLI

There are two ways to get this chart, and they are genuinely different -- this is a deliberate asymmetry, not a duplicate.

The butterfly verb composes both wings in ONE command:

drag-lint butterfly --qname <X> [--depth N] [--format dot|mermaid|text|json] [--output F] --db PATH [--db ...]

The IDE menu item does NOT call butterfly. It runs reverse-calltree TWICE -- once for callers, once with --direction callees -- and composes the two JSON documents itself into the dock's Call Graph tab:

drag-lint reverse-calltree --qname <X> --db <db> --depth 3 --format json
drag-lint reverse-calltree --qname <X> --db <db> --depth 3 --format json --direction callees

So butterfly is CLI-only: no IDE action invokes it. If you want the chart from a script, butterfly is the single-command option.

Reaching it in the IDE

drag-lint > Uses & Dependencies > Call Graph (Butterfly)...

What it needs

An index IS required -- both butterfly and the two reverse-calltree calls the IDE composes it from read the project's index database. The project's DB lives at <project folder>\_D-RAG\<project file>.sqlite; run drag-lint resolve-dbs --project <X.dproj> if you are unsure which one.

Example

Illustrative only:

drag-lint reverse-calltree --qname CustomerOrder.TCustomerOrder.Total --db C:\Projects\MyApp\_D-RAG\MyApp.sqlite --format dot

This would produce a DOT-format graph touching the Total member of TCustomerOrder.