Inline Annotations

Code lens annotations show struct and field size information directly in the editor.

Struct annotations

A line above each struct shows total size and optimization status:

Event  40 bytes total (can be 24 bytes)

When GC pressure optimization applies, it includes GC scan info:

ComplexStruct  48 bytes total · GC scan 72→48B

Field annotations

Inline annotations next to each field show individual sizes:

type MyStruct struct {
    A bool     // 1 byte, offset 0
    B int64    // 8 bytes, offset 8 (+7 padding)
}

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Annotations can be disabled via the setting goStructAnalyzer.showInlineAnnotations.