str_contains() — internals

str_contains() — internals

Where it lives

• Signature: src/builtins/string/str_contains.rs
• Lowering: src/codegen/lower_inst/builtins/strings.rs:744 (lower_str_contains)
• Function symbol: lower_str_contains()

Lowering notes

• Lowers str_contains() through strpos() and converts found positions to bool.

Runtime helpers

The following runtime helpers are referenced:

• __rt_strpos

Signature summary

function str_contains(string $haystack, string $needle): bool

What the type checker enforces

• Arity: takes exactly 2 arguments.

Eval interpreter (magician)

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

Cross-references

• User reference for str_contains()