Incorrect usage of the 'errors.As' function

Reports calls of the errors.As function when the second argument is not a pointer to an interface or to a type that implements an error.

Such calls panic at runtime.

For more information about the As function, refer to func As at go.dev.

Example:

_, err := os.Open("non-existing")
var pathError *fs.PathError
if errors.As(err, pathError) { // a pointer to *fs.PathError is required
}

After the Prepend '&' quick-fix is applied:

_, err := os.Open("non-existing")
var pathError *fs.PathError
if errors.As(err, &pathError) {
}

Locating this inspection

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Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GoErrorsAs

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Settings or Preferences | Editor | Inspections | Go | Probable bugs

This inspection only reports if the language version is 1.13 or higher.

Inspection Details
By default bundled with:	GoLand 2024.3, Qodana for Go 2024.3,
Can be installed with plugin:	Go, 243.23131

Last modified: 03 December 2024