• Child scope constructors are now visualized via Visualize
• CallbackInfo now includes constructor/decorator run time.

Thanks to @greeflas for their contribution to this release.

Added

• Suggestions for value vs. pointer elements for slice and array types.

Fixed

• An issue where value group values were not getting decorated by decorators within the same module when using dig.Export(true).
• A typo in docs.
• An issue where false positives in cycle detection were occurring when providing to a child scope.

Thanks to @paullen and @lcarilla for their contributions to this release.

Added

• Allow using dig.As with dig.Group.
• Add FillInvokeInfo Option and InvokeInfo struct to help extract the types requested by an Invoke statement.
• To get visibility into constructor and decorator calls, introduce WithProviderCallback and WithDecoratorCallback Options to provide callback functions.

Fixed

• A panic when DryRun was used with Decorate.

Added

• Add RecoverFromPanics option, which provides panic-recovery mechanism for Container.
• Add Error interface which enables distinguishing errors from Dig using standard errors package.

Thanks to @mie998 for their contribution(s) to this release.

Added

• Support for soft value groups, which specify a value group that only gets populated with values from already-executed constructors.

Fixed

• Fix an issue with invoke order affecting results provided by private provides.

Thanks to @hbdf for their contributions to this release.

Fixed

• Fix an issue where a dependency for a decoration supplied by another decorator in the same scope is ignored.
• Fix a panic when submitting a single value as a value group in Scope.Decorate.
• Upon a provide error, make the error message contain the function named specified by LocationForPC Option.

Added

• Introduce dig.Scope which creates a scoped dependency injection container to scope dependencies.
• Introduce Scope.Decorate and Container.Decorate which allows a decorator to modify a dependency already provided in the dependency graph.
• Add FillDecorateInfo Option and DecorateInfo struct which exposes information on what Dig was able to understand from the decorator provided with Scope.Decorate or Container.Decorate.

Changed

• The error message that appears when a cycle is detected in the dependency graph has been changed slightly.

Fixed

• A stack overflow bug that happens when cycles are introduced via self-pointing dependencies with DeferAcyclicVerification.

Added

• Introduce As option which supports providing a type as interface(s) it implements to the container.
• Add LocationForPC option which overrides the function inspection for a program counter address to a provided function info.

Added

• Support for ProvideInfo and FillProvideInfo that allow the caller of Provide to get info about what dig understood from the constructor.