

Aha moments reading Go's source: Part 1
Jul 18, 2024
Jesús Espino, a Mattermost contributor, shares intriguing insights about his enlightening experiences with Go's source code. He discusses the intricate workings of slices, maps, and channels, offering a peek into Go's concurrency with goroutines. Jesús also highlights the Go compiler's inlining overhaul and the uniqueness of TinyGo. With a blend of technical depth and personal anecdotes, he paints a vivid picture of how Go's features challenge traditional programming paradigms, making for an engaging exploration.
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Go Slices Efficient Implementation
- Go slices are efficiently implemented with underlying arrays that double in size when needed.
- Multiple slices can share the same array, leading to surprising behaviors when one resizes.
Go Routines are Cooperative
- Go routines use cooperative scheduling where they yield control voluntarily to the scheduler.
- Goroutines wake each other up when waiting and signaling, collaborating to manage execution.
Go File AST Strict Boundaries
- A Go source file's AST only contains package, imports, constants, variables, types, and functions.
- No other language constructs exist at the top level in a Go file, defining clear structure boundaries.