imagecolorexactalpha() — internals

imagecolorexactalpha() — internals

Where it lives

• Signature: crates/elephc-builtin-contract/src/catalog_data.rs
• Lowering: src/image_prelude.rs:2389 (imagecolorexactalpha)
• Function symbol: imagecolorexactalpha()

Lowering notes

• Implemented by the compiler-injected image prelude.

Semantic descriptor

Shared contract implemented by an injected elephc-PHP prelude.

EIR and runtime boundary

Implemented by an injected elephc-PHP prelude.

Signature summary

function imagecolorexactalpha(mixed $image, int $red, int $green, int $blue, int $alpha): int

What the type checker enforces

• Arity: takes exactly 5 arguments.

Eval interpreter (magician)

Not callable from eval’d code — the magician interpreter has no entry for this builtin.

Cross-references

• User reference for imagecolorexactalpha()