Function checkGoFieldType

tools/structfield/structfield.go:251–269

(structName, goFieldName, tagType string, field *ast.Field, tokenPos token.Pos, pass *analysis.Pass, allowedTypes map[string]bool, omitempty, omitzero bool)

}

func checkGoFieldType(structName, goFieldName, tagType string, field *ast.Field, tokenPos token.Pos, pass *analysis.Pass, allowedTypes map[string]bool, omitempty, omitzero bool) {
	if allowedTypes[structName+"."+goFieldName] {
		return
	}
	switch {
	case omitzero:
		skipOmitzero := checkAndReportInvalidTypesForOmitzero(structName, tagType, goFieldName, field.Type, tokenPos, pass)
		if !skipOmitzero {
			const msg = `the %q field in struct %q uses "omitzero"; remove "omitzero", as it is only allowed with structs, maps, and slices`
			pass.Reportf(tokenPos, msg, goFieldName, structName)
		}

	case omitempty:
		if newFieldType, ok := checkAndReportInvalidTypes(structName, tagType, goFieldName, field.Type, tokenPos, pass); !ok {
			const msg = `change the %q field type to %q in the struct %q because its %v tag uses "omitempty"`
			pass.Reportf(tokenPos, msg, goFieldName, newFieldType, structName, tagType)
		}
	}
}

func checkAndReportInvalidTypes(structName, tagType, goFieldName string, fieldType ast.Expr, tokenPos token.Pos, pass *analysis.Pass) (newFieldType string, ok bool) {
	switch ft := fieldType.(type) {