fread() — internals

fread() — internals

Where it lives

• Signature: src/builtins/io/fread.rs
• Lowering: src/codegen/lower_inst/builtins/io.rs:2814 (lower_fread)
• Function symbol: lower_fread()

Lowering notes

• Lowers fread(stream, length) using the shared runtime file-read helper.

Runtime helpers

The following runtime helpers are referenced:

• __rt_fread

Signature summary

function fread(resource $stream, int $length): string

What the type checker enforces

• Arity: takes exactly 2 arguments.

Eval interpreter (magician)

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

Cross-references

• User reference for fread()