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https://github.com/golang/go
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01f8cd246d
They will be deleted from their current homes once this has landed. Changes made to import paths to make the code compile, and to find errchk in the right place in cmd/vet's Makefile. TODO in a later CL: tidy up vet. R=golang-dev, gri CC=golang-dev https://golang.org/cl/9495043
38 lines
909 B
Go
38 lines
909 B
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// This file contains the test for canonical struct tags.
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package main
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import (
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"go/ast"
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"reflect"
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"strconv"
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)
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// checkField checks a struct field tag.
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func (f *File) checkCanonicalFieldTag(field *ast.Field) {
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if !vet("structtags") {
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return
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}
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if field.Tag == nil {
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return
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}
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tag, err := strconv.Unquote(field.Tag.Value)
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if err != nil {
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f.Badf(field.Pos(), "unable to read struct tag %s", field.Tag.Value)
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return
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}
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// Check tag for validity by appending
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// new key:value to end and checking that
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// the tag parsing code can find it.
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if reflect.StructTag(tag+` _gofix:"_magic"`).Get("_gofix") != "_magic" {
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f.Badf(field.Pos(), "struct field tag %s not compatible with reflect.StructTag.Get", field.Tag.Value)
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return
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}
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}
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