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Package reflectvaluecompare

import "golang.org/x/tools/go/analysis/passes/reflectvaluecompare"
Overview
Index

Overview ▾

Package reflectvaluecompare defines an Analyzer that checks for accidentally using == or reflect.DeepEqual to compare reflect.Value values. See issues 43993 and 18871.

Index ▾

Package files

reflectvaluecompare.go

Constants

const Doc = `check for comparing reflect.Value values with == or reflect.DeepEqual

The reflectvaluecompare checker looks for expressions of the form:

    v1 == v2
    v1 != v2
    reflect.DeepEqual(v1, v2)

where v1 or v2 are reflect.Values. Comparing reflect.Values directly
is almost certainly not correct, as it compares the reflect package's
internal representation, not the underlying value.
Likely what is intended is:

    v1.Interface() == v2.Interface()
    v1.Interface() != v2.Interface()
    reflect.DeepEqual(v1.Interface(), v2.Interface())
`

Variables

var Analyzer = &analysis.Analyzer{
    Name:     "reflectvaluecompare",
    Doc:      Doc,
    Requires: []*analysis.Analyzer{inspect.Analyzer},
    Run:      run,
}