preg_replace() — internals

preg_replace() — internals

Where it lives

• Signature: src/builtins/system/preg_replace.rs
• Lowering: src/codegen/lower_inst/builtins/regex.rs:79 (lower_preg_replace)
• Function symbol: lower_preg_replace()

Lowering notes

• Lowers preg_replace(pattern, replacement, subject) through the regex replacement helper.

Runtime helpers

The following runtime helpers are referenced:

• __rt_preg_replace

Signature summary

function preg_replace(string $pattern, string $replacement, string $subject): string

What the type checker enforces

• Arity: takes exactly 3 arguments.

Eval interpreter (magician)

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

Cross-references

• User reference for preg_replace()