spl_autoload() — internals

spl_autoload() — internals

Where it lives

• Signature: src/builtins/spl/spl_autoload.rs
• Lowering: src/codegen/lower_inst/builtins/spl.rs:151 (lower_spl_autoload_void)
• Function symbol: lower_spl_autoload_void()

Lowering notes

• Lowers no-op autoload calls by preserving arg effects and returning PHP null if used.

Runtime helpers

No direct __rt_* helpers captured — the lowering is inlined or routes through another builtin.

Signature summary

function spl_autoload(string $class, string $file_extensions = null): void

What the type checker enforces

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

Eval interpreter (magician)

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

Cross-references

• User reference for spl_autoload()