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World Congress 2022 • Jun 15, 2022

Go Generics

Nils Kasseckert

Are you sacrificing compile-time safety for generic flexibility? Master Go 1.18 type constraints to reduce repetitive boilerplate without losing robust validation.

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#1 about 2 min

Introduction to generic programming in modern Go

Writing type-independent code relies on newly introduced parameters, sets, and inference features.

#2 about 4 min

Defining and using type parameters in functions

Declaring type parameters in square brackets eliminates the need to duplicate functions for different data types.

#3 about 3 min

Implementing type constraints to restrict parameter types

Applying prefabricated constraints successfully restricts generic functions to specific data types while preserving compile-time validation.

#4 about 3 min

Understanding interfaces as type sets representing underlying types

Reconceptualizing interfaces as collections of types enables broader compatibility for custom underlying structures.

#5 about 4 min

Utilizing the tilde symbol and nested type constraints

Applying the tilde symbol and nested constraints effectively defines custom collection boundaries alongside the any alias.

#6 about 3 min

Applying function argument type inference in generics

Relying on compiler inference allows developers to omit explicit type arguments during standard function calls.

#7 about 4 min

Leveraging constraint type inference for complex parameter relationships

Resolving complex parameter dependencies relies on constraint type inference to deduce precise structural relationships from interconnected interfaces.

#8 about 4 min

Practical examples and limitations of the any constraint

Implementing marker interfaces effectively resolves compile-time safety limitations when building generic struct loaders with the any alias.

#9 about 2 min

Summary of generics and Q&A on type safety

Balancing generic implementations involves understanding core language mechanics alongside structural trade-offs regarding compile-time type safety.

Matching moments

4:27 min

Introduction to TypeScript generics for type safety

Miroslav Jonaš · LIVE

3:57 min

Multi paradigm language design principles in Go

Frank Müller · WWC 2021

2:28 min

Adding strong type checking and generic programming concepts

Bjarne Stroustrup · WWC 2022

1:33 min

Abstracting variables through functional generics and explicit literal strings

Jens Claes · WWC 2023

4:26 min

Navigating trait discovery and compiler error limitations

Stefan Baumgartner · LIVE

1:40 min

Introduction to the speaker and software development philosophy

Aliaksandr Valialkin Aliaksandr Valialkin · WWC Europe 2026

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