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Vyper uses decorators to declare function visibility and payable status. This guide shows how @external, @internal, and @payable work together, with a concrete example, limits, and common mistakes.
Since Solidity 0.5.0, the compiler rejects any function declared without an explicit visibility specifier. Before that release, a missing keyword silently defaulted to public — a classic route to accidental external access. Function visibility is now mandatory, but the neighboring state-variable decision remains open. State variables default to internal, yet
Missing Visibility Enforcement for Stereotyped Elements The UML 2.5 specification defines stereotypes as reusable profile extensions but does not prescribe a mandatory visibility constraint for the elements they annotate. This omission leaves tool-specific behavior undefined: a stereotype applied to a class marked private may be rendered public in generated
Gleam 1.x treats every top-level function as private unless it carries the pub keyword. Code written against earlier releases that relied on implicit cross-module access therefore sits on a compatibility boundary: source that compiled before now needs an explicit export decision for each function another module calls. That decision is straightforward for a l
Vyper creates an external read-only getter for any state variable declared public and treats functions as external by default. The internal modifier must be added explicitly to keep helper logic from being callable externally. The goal is to understand the documented capability limits around accidental exposure: when a public variable is used unintentionally
When importing a GitHub repository via StackBlitz’s Import from GitHub button, the platform creates a StackBlitz project whose visibility is public by default, requiring the user to manually enable the Private project option during import. This behavior poses a risk of accidental exposure for private repositories, especially in team workflows where developer
Designing an F# library with the goal of avoiding accidental public access requires clear understanding of how access modifiers compose for modules and nested types. Top-level modules and types are public by default, so internal is used to restrict them to the assembly. Nested modules and types default to private, visible only within the enclosing module or
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