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chore: add #[non_exhaustive] and mutation methods to improve compatibility - #715
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alexhancock
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alexhancock
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DaleSeo
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| pub fn with_logger(level: LoggingLevel, logger: impl Into<String>, data: Value) -> Self { | ||
| Self { | ||
| level, | ||
| logger: Some(logger.into()), | ||
| data, | ||
| } | ||
| } | ||
| } |
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The with_ prefix means "take ownership of self, set a fieThe with_ prefix means "take ownership of self, set a field, and return self." When callers look at the method list, they'll expect to see new().with_logger("name") chaining. I suggest we stick to the conventional build pattern here.
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| pubfn with_logger(level:LoggingLevel,logger:implInto<String>,data:Value) -> Self{ | |
| Self{ | |
| level, | |
| logger:Some(logger.into()), | |
| data, | |
| } | |
| } | |
| } | |
| pubfn with_logger(mutself,logger:implInto<String>) -> Self{ | |
| self.logger = Some(logger.into()); | |
| self | |
| } |
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@DaleSeo I agree. I think most of them follow this pattern you're suggesting, and we should keep it consistent
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AuthRequiredError, InsufficientScopeError, and DynamicTransportError were marked #[non_exhaustive] in modelcontextprotocol#715/modelcontextprotocol#768 but don't have constructors usable by external crates. Add new() for the error types and from_parts() for DynamicTransportError (the existing new() requires a Transport type parameter, making it unusable for test fixtures). Fixesmodelcontextprotocol#805
wpfleger96 added a commit
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Apr 10, 2026
AuthRequiredError, InsufficientScopeError, and DynamicTransportError were marked #[non_exhaustive] in modelcontextprotocol#715/modelcontextprotocol#768 but don't have constructors usable by external crates. Add new() for the error types and from_parts() for DynamicTransportError (the existing new() requires a Transport type parameter, making it unusable for test fixtures). Fixesmodelcontextprotocol#805
alexhancock pushed a commit
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Apr 13, 2026
AuthRequiredError, InsufficientScopeError, and DynamicTransportError were marked #[non_exhaustive] in #715/#768 but don't have constructors usable by external crates. Add new() for the error types and from_parts() for DynamicTransportError (the existing new() requires a Transport type parameter, making it unusable for test fixtures). Fixes#805
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In preparation for a 1.0 release, we should use #[non_exaustive] for most public structs/enums to help reduce backwards-incompatible changes.
While we don't foresee being strict with the semver guidelines, we should aim to keep backwards compatibility as much as possible between minor releases.
Motivation and Context
This will prevent clients from writing code that will break and require updates in future versions.
How Has This Been Tested?
Breaking Changes
Types of changes
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