hash_file() — internals

hash_file() — internals

Where it lives

• Signature: src/builtins/io/hash_file.rs
• Lowering: src/codegen/lower_inst/builtins/io.rs:286 (lower_hash_file)
• Function symbol: lower_hash_file()

Lowering notes

• Lowers hash_file(algo, filename, binary?) by reading bytes then hashing them.

Runtime helpers

The following runtime helpers are referenced:

• __rt_vd_write

Signature summary

function hash_file(string $algo, string $filename, bool $binary = false): mixed

What the type checker enforces

• Arity: takes 2–3 arguments (1 optional).

Eval interpreter (magician)

• Declaration: crates/elephc-magician/src/interpreter/builtins/string/hash_file.rs (eval_builtin!)
• Dispatch hooks: direct, values

Cross-references

• User reference for hash_file()