# Analysis harnesses

One-off measurement programs kept out of the crate tree: they are not
part of any build, and are here so a number in a REVIEWS document can be
reproduced rather than trusted.

## `pdf_drawcall_census.rs`

Backs `REVIEWS/PDF_DRAWCALL_STRATEGY_ANALYSIS.md`. Replays every parseable
page in `crates/apps/pdf/tests/corpus` through the same `finish_path`
state machine as `pdf-makepad/src/renderer.rs`, and counts the draw calls
the renderer would issue.

To run it, drop it into a standalone workspace holding the three engine
crates and invoke it as an example:

    W=$(mktemp -d); cd crates/apps/pdf
    cp -a pdf-cos pdf-document pdf-graphics tests "$W"/
    rm -rf "$W"/pdf-cos/fuzz
    printf '[workspace]\nmembers = ["pdf-cos","pdf-document","pdf-graphics"]\nresolver = "2"\n' > "$W"/Cargo.toml
    mkdir -p "$W"/pdf-graphics/examples
    cp tools/analysis/pdf_drawcall_census.rs "$W"/pdf-graphics/examples/
    cd "$W" && cargo run --release -p nigig-pdf-graphics \
        --example pdf_drawcall_census -- tests/corpus

It reads only; it changes nothing.