some deletions
[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201105173854-bc9fc8d8c4bc / go / analysis / passes / unmarshal / unmarshal.go
diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/analysis/passes/unmarshal/unmarshal.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/analysis/passes/unmarshal/unmarshal.go
deleted file mode 100644 (file)
index 92b37ca..0000000
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// The unmarshal package defines an Analyzer that checks for passing
-// non-pointer or non-interface types to unmarshal and decode functions.
-package unmarshal
-
-import (
-       "go/ast"
-       "go/types"
-
-       "golang.org/x/tools/go/analysis"
-       "golang.org/x/tools/go/analysis/passes/inspect"
-       "golang.org/x/tools/go/ast/inspector"
-       "golang.org/x/tools/go/types/typeutil"
-)
-
-const Doc = `report passing non-pointer or non-interface values to unmarshal
-
-The unmarshal analysis reports calls to functions such as json.Unmarshal
-in which the argument type is not a pointer or an interface.`
-
-var Analyzer = &analysis.Analyzer{
-       Name:     "unmarshal",
-       Doc:      Doc,
-       Requires: []*analysis.Analyzer{inspect.Analyzer},
-       Run:      run,
-}
-
-func run(pass *analysis.Pass) (interface{}, error) {
-       switch pass.Pkg.Path() {
-       case "encoding/gob", "encoding/json", "encoding/xml", "encoding/asn1":
-               // These packages know how to use their own APIs.
-               // Sometimes they are testing what happens to incorrect programs.
-               return nil, nil
-       }
-
-       inspect := pass.ResultOf[inspect.Analyzer].(*inspector.Inspector)
-
-       nodeFilter := []ast.Node{
-               (*ast.CallExpr)(nil),
-       }
-       inspect.Preorder(nodeFilter, func(n ast.Node) {
-               call := n.(*ast.CallExpr)
-               fn := typeutil.StaticCallee(pass.TypesInfo, call)
-               if fn == nil {
-                       return // not a static call
-               }
-
-               // Classify the callee (without allocating memory).
-               argidx := -1
-               recv := fn.Type().(*types.Signature).Recv()
-               if fn.Name() == "Unmarshal" && recv == nil {
-                       // "encoding/json".Unmarshal
-                       // "encoding/xml".Unmarshal
-                       // "encoding/asn1".Unmarshal
-                       switch fn.Pkg().Path() {
-                       case "encoding/json", "encoding/xml", "encoding/asn1":
-                               argidx = 1 // func([]byte, interface{})
-                       }
-               } else if fn.Name() == "Decode" && recv != nil {
-                       // (*"encoding/json".Decoder).Decode
-                       // (* "encoding/gob".Decoder).Decode
-                       // (* "encoding/xml".Decoder).Decode
-                       t := recv.Type()
-                       if ptr, ok := t.(*types.Pointer); ok {
-                               t = ptr.Elem()
-                       }
-                       tname := t.(*types.Named).Obj()
-                       if tname.Name() == "Decoder" {
-                               switch tname.Pkg().Path() {
-                               case "encoding/json", "encoding/xml", "encoding/gob":
-                                       argidx = 0 // func(interface{})
-                               }
-                       }
-               }
-               if argidx < 0 {
-                       return // not a function we are interested in
-               }
-
-               if len(call.Args) < argidx+1 {
-                       return // not enough arguments, e.g. called with return values of another function
-               }
-
-               t := pass.TypesInfo.Types[call.Args[argidx]].Type
-               switch t.Underlying().(type) {
-               case *types.Pointer, *types.Interface:
-                       return
-               }
-
-               switch argidx {
-               case 0:
-                       pass.Reportf(call.Lparen, "call of %s passes non-pointer", fn.Name())
-               case 1:
-                       pass.Reportf(call.Lparen, "call of %s passes non-pointer as second argument", fn.Name())
-               }
-       })
-       return nil, nil
-}