str_replace() — internals

str_replace() — internals

Where it lives

• Signature: src/builtins/string/str_replace.rs
• Lowering: src/codegen/lower_inst/builtins/strings.rs:842 (lower_string_replace)
• Function symbol: lower_string_replace()

Lowering notes

• Lowers str_replace()/str_ireplace() with three string operands.

Runtime helpers

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

Signature summary

function str_replace(string $search, string $replace, string $subject, int $count = null): string

What the type checker enforces

• Arity: takes 3–4 arguments (1 optional).

Eval interpreter (magician)

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

Cross-references

• User reference for str_replace()