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Path	Synopsis
composition
assertions/example1 Sample program demonstrating when implicit interface conversions are provided by the compiler.	Sample program demonstrating when implicit interface conversions are provided by the compiler.
assertions/example2 Sample program demonstrating that type assertions are a runtime and not compile time construct.	Sample program demonstrating that type assertions are a runtime and not compile time construct.
decoupling/example1 Sample program demonstrating struct composition.	Sample program demonstrating struct composition.
decoupling/example2 Sample program demonstrating decoupling with interfaces.	Sample program demonstrating decoupling with interfaces.
decoupling/example3 Sample program demonstrating interface composition.	Sample program demonstrating interface composition.
decoupling/example4 Sample program demonstrating decoupling with interface composition.	Sample program demonstrating decoupling with interface composition.
decoupling/example5 Sample program demonstrating removing interface pollution.	Sample program demonstrating removing interface pollution.
exercises/exercise1 Using the template, declare a set of concrete types that implement the set of predefined interface types.	Using the template, declare a set of concrete types that implement the set of predefined interface types.
grouping/example1 This is an example of using type hierarchies with a OOP pattern.	This is an example of using type hierarchies with a OOP pattern.
grouping/example2 This is an example of using composition and interfaces.	This is an example of using composition and interfaces.
mocking/example1 Sample program to show how you can personally mock concrete types when you need to for your own packages or tests.	Sample program to show how you can personally mock concrete types when you need to for your own packages or tests.
mocking/example1/pubsub Package pubsub simulates a package that provides publication/subscription type services.	Package pubsub simulates a package that provides publication/subscription type services.
pollution/example1 This is an example that creates interface pollution by improperly using an interface when one is not needed.	This is an example that creates interface pollution by improperly using an interface when one is not needed.
pollution/example2 This is an example that removes the interface pollution by removing the interface and using the concrete type directly.	This is an example that removes the interface pollution by removing the interface and using the concrete type directly.
error_handling
example1 Sample program to show how the default error type is implemented.	Sample program to show how the default error type is implemented.
example2 Sample program to show how to use error variables to help the caller determine the exact error being returned.	Sample program to show how to use error variables to help the caller determine the exact error being returned.
example3 http://golang.org/src/pkg/encoding/json/decode.go Sample program to show how to implement a custom error type based on the json package in the standard library.	http://golang.org/src/pkg/encoding/json/decode.go Sample program to show how to implement a custom error type based on the json package in the standard library.
example4 Package example5 provides code to show how to implement behavior as context.	Package example5 provides code to show how to implement behavior as context.
example5 Sample program to show see if the class can find the bug.	Sample program to show see if the class can find the bug.
example5/reason Sample program to show see if the class can find the bug.	Sample program to show see if the class can find the bug.
example6 Sample program to show how wrapping errors work.	Sample program to show how wrapping errors work.
exercises/exercise1 Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.	Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
exercises/exercise2 Create a custom error type called appError that contains three fields, err error, message string and code int.	Create a custom error type called appError that contains three fields, err error, message string and code int.
exercises/template1 Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.	Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
exercises/template2 Create a custom error type called appError that contains three fields, err error, message string and code int.	Create a custom error type called appError that contains three fields, err error, message string and code int.