popen() — internals

popen() — internals

Where it lives

• Signature: src/builtins/io/popen.rs
• Lowering: src/codegen/lower_inst/builtins/io.rs:3598 (lower_popen)
• Function symbol: lower_popen()

Lowering notes

• Lowers popen(command, mode) and boxes the process pipe as resource|false.

Runtime helpers

The following runtime helpers are referenced:

• __rt_popen

Signature summary

function popen(string $command, string $mode): mixed

What the type checker enforces

• Arity: takes exactly 2 arguments.

Eval interpreter (magician)

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

Cross-references

• User reference for popen()