Mat, Carmen, and Jon are joined by Dan Scales to talk about Mat’s favorite keyword in Go - defer. Where did the defer statement come from? What problems can it solve? How has it shaped how we write Go code? How are other languages solving similar problems? And what exactly was changed in Go 1.14 to improve the performance of defer?

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Featuring:

• Dan Scales – LinkedIn
• Mat Ryer – Twitter, GitHub, LinkedIn, Website
• Carmen Andoh – Twitter, GitHub
• Jon Calhoun – Twitter, GitHub, Website

Show Notes:

• RAII - the C++ like equivalent to Go’s defer
• Go’s recover builtin
• review.googlesource.com/c/go/+/190098/20/src/cmd/compile/internal/gc/ssa.go">Compiler changes for lighter defers in 1.14
• review.googlesource.com/c/go/+/190098">Complete defer changeset
• Builders

Something missing or broken? time-112.md">PRs welcome!