A compiled ~STAR rendering program. Compiler output; not a construction API.

run is a capture-free function generated by the ~STAR compiler from one template skeleton. values holds the already-evaluated expressions of one snapshot. The function owns every static byte and the template structure:

• run.(:render, values) returns HTML iodata.
• run.(:nodes, values) returns the equivalent StarView.Template.Node list, which may contain nested programs.
• run.(:key, values) returns the item key for keyed collections, or nil.
• Any other mode or a malformed values tuple raises ArgumentError.

Rendering and materializing never evaluate template expressions again; they only read values. values is ordinary data and may be replaced or mutated, so the generated code escapes and validates it on every call exactly like a hand-built tree. There is no cached HTML, static data or tree in the struct.

run is executable code and is trusted like a Phoenix.HTML.Safe implementation: whoever supplies it chooses the markup. Programs are ordinary server-side values. They are not meant to be serialized or accepted from untrusted transports.

In modules, the compiler emits hidden named functions and stores external captures. Snapshots do not pin old module code. An unchanged program works after recompilation; a removed program raises StarView.Template.StaleProgramError. Diffing treats this as :template_changed, including nested programs.

Moduleless evaluation and templates expanded after the compiler hook use local functions instead. Those values have the ordinary code-lifetime limits of local functions. They are intended for immediate evaluation.