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pd_context_slice

packdiff_wasm

Function pd_context_slice 

Source 
#[unsafe(no_mangle)]
pub extern "C" fn pd_context_slice(
    snap_ptr: *const u8,
    snap_len: u32,
    params_ptr: *const u8,
    params_len: u32,
) -> u64
Expand description

Unchanged lines shared by a file’s two endpoint snapshots — the page’s expand-context data. snapshots is a RangeSnapshots JSON; params is {"old_path": "...", "new_path": "...", "old_start": N, "new_start": N, "count": N} (1-based starts; paths differ for renames). Ok carries a Line array of Ctx entries, clamped at either file’s end; a region that is not identical at both endpoints is rejected.