strlen() — internals

strlen() — internals

Where it lives

• Signature: src/builtins/string/strlen.rs
• Lowering: src/codegen/lower_inst/builtins.rs:1097 (lower_strlen)
• Function symbol: lower_strlen()

Lowering notes

• Lowers strlen() by coercing string-like values and returning the byte length.

Runtime helpers

The following runtime helpers are referenced:

• __rt_mixed_cast_string

Signature summary

function strlen(string $string): int

What the type checker enforces

• Arity: takes exactly 1 argument.

Eval interpreter (magician)

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

Cross-references

• User reference for strlen()