file_exists() — internals

file_exists() — internals

Where it lives

• Signature: src/builtins/io/file_exists.rs
• Lowering: src/codegen/lower_inst/builtins/io.rs:4395 (lower_file_exists)
• Function symbol: lower_file_exists()

Lowering notes

• Lowers file_exists(path) through the target-aware runtime stat helper.

Runtime helpers

The following runtime helpers are referenced:

• __rt_mkdir
• __rt_unlink

Signature summary

function file_exists(string $filename): bool

What the type checker enforces

• Arity: takes exactly 1 argument.

Eval interpreter (magician)

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

Cross-references

• User reference for file_exists()