readfile() — internals

readfile() — internals

Where it lives

• Signature: src/builtins/io/readfile.rs
• Lowering: src/codegen/lower_inst/builtins/io.rs:299 (lower_readfile)
• Function symbol: lower_readfile()

Lowering notes

• Lowers readfile(path) and boxes the runtime byte-count-or-false result.

Runtime helpers

The following runtime helpers are referenced:

• __rt_vd_write

Signature summary

function readfile(string $filename): mixed

What the type checker enforces

• Arity: takes exactly 1 argument.

Eval interpreter (magician)

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

Cross-references

• User reference for readfile()