How to access a private struct field in Rust?

Question

Im working on a Rust project and encountered an error saying Invalid access of field value on the struct dif_module::contract::Struct. The field value can only be accessed within the module dif_module::contract. Why is this happening and how can I fix it?

deriss · Accepted Answer

This error occurs because the field value is private to the module dif_module::contract. In Rust, struct fields are private by default, meaning they can only be accessed within the same module they are defined in. To resolve this, you can define a public getter function within the dif_module::contract module that returns the value you need. This allows other modules to call this function and access the field indirectly.

tomek · Answer

Another way to fix this is to change the visibility of the field itself to public if it is safe and appropriate to do so. However, often defining a public getter method is a better practice as it provides more control over how the field value is accessed and manipulated.

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How to access a private struct field in Rust?

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