update vendor

vendor/github.com/ugorji/go/codec/build.sh

+#!/bin/bash
+
+# Run all the different permutations of all the tests and other things
+# This helps ensure that nothing gets broken.
+
+_tests() {
+    local gover=$( go version | cut -f 3 -d ' ' )
+    # note that codecgen requires fastpath, so you cannot do "codecgen notfastpath"
+    local a=( "" "safe"  "notfastpath" "notfastpath safe" "codecgen" "codecgen safe" )
+    for i in "${a[@]}"
+    do
+        echo ">>>> TAGS: $i"
+        local i2=${i:-default}
+        case $gover in
+            go1.[0-6]*) go vet -printfuncs "errorf" "$@" &&
+                              go test ${zargs[*]} -vet off -tags "$i" "$@" ;;
+            *) go vet -printfuncs "errorf" "$@" &&
+                     go test ${zargs[*]} -vet off -tags "alltests $i" -run "Suite" -coverprofile "${i2// /-}.cov.out" "$@" ;;
+        esac
+        if [[ "$?" != 0 ]]; then return 1; fi 
+    done
+    echo "++++++++ TEST SUITES ALL PASSED ++++++++"
+}
+
+
+# is a generation needed?
+_ng() {
+    local a="$1"
+    if [[ ! -e "$a" ]]; then echo 1; return; fi 
+    for i in `ls -1 *.go.tmpl gen.go values_test.go`
+    do
+        if [[ "$a" -ot "$i" ]]; then echo 1; return; fi 
+    done
+}
+
+_prependbt() {
+    cat > ${2} <<EOF
+// +build generated
+
+EOF
+    cat ${1} >> ${2}
+    rm -f ${1}
+}
+
+# _build generates fast-path.go and gen-helper.go.
+_build() {
+    if ! [[ "${zforce}" || $(_ng "fast-path.generated.go") || $(_ng "gen-helper.generated.go") || $(_ng "gen.generated.go") ]]; then return 0; fi 
+    
+    if [ "${zbak}" ]; then
+        _zts=`date '+%m%d%Y_%H%M%S'`
+        _gg=".generated.go"
+        [ -e "gen-helper${_gg}" ] && mv gen-helper${_gg} gen-helper${_gg}__${_zts}.bak
+        [ -e "fast-path${_gg}" ] && mv fast-path${_gg} fast-path${_gg}__${_zts}.bak
+        [ -e "gen${_gg}" ] && mv gen${_gg} gen${_gg}__${_zts}.bak
+    fi 
+    rm -f gen-helper.generated.go fast-path.generated.go gen.generated.go \
+       *safe.generated.go *_generated_test.go *.generated_ffjson_expose.go 
+
+    cat > gen.generated.go <<EOF
+// +build codecgen.exec
+
+// Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+package codec
+
+// DO NOT EDIT. THIS FILE IS AUTO-GENERATED FROM gen-dec-(map|array).go.tmpl
+
+const genDecMapTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-dec-map.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+
+const genDecListTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-dec-array.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+
+const genEncChanTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-enc-chan.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+EOF
+    cat > gen-from-tmpl.codec.generated.go <<EOF
+package codec 
+import "io"
+func GenInternalGoFile(r io.Reader, w io.Writer) error {
+return genInternalGoFile(r, w)
+}
+EOF
+    cat > gen-from-tmpl.generated.go <<EOF
+//+build ignore
+
+package main
+
+import "${zpkg}"
+import "os"
+
+func run(fnameIn, fnameOut string) {
+println("____ " + fnameIn + " --> " + fnameOut + " ______")
+fin, err := os.Open(fnameIn)
+if err != nil { panic(err) }
+defer fin.Close()
+fout, err := os.Create(fnameOut)
+if err != nil { panic(err) }
+defer fout.Close()
+err = codec.GenInternalGoFile(fin, fout)
+if err != nil { panic(err) }
+}
+
+func main() {
+run("fast-path.go.tmpl", "fast-path.generated.go")
+run("gen-helper.go.tmpl", "gen-helper.generated.go")
+run("mammoth-test.go.tmpl", "mammoth_generated_test.go")
+run("mammoth2-test.go.tmpl", "mammoth2_generated_test.go")
+}
+EOF
+
+    # explicitly return 0 if this passes, else return 1
+    go run -tags "notfastpath safe codecgen.exec" gen-from-tmpl.generated.go &&
+        rm -f gen-from-tmpl.*generated.go &&
+        return 0
+    return 1
+}
+
+_codegenerators() {
+    if ! [[ $zforce ||
+                $(_ng "values_codecgen${zsfx}") ]]; then return 0; fi
+
+    # Note: ensure you run the codecgen for this codebase  (using $zgobase/bin/codecgen)
+    local c9="codecgen-scratch.go"
+    true &&
+        echo "codecgen ... " &&
+        $zgobase/bin/codecgen -rt codecgen -t 'codecgen generated' -o values_codecgen${zsfx} -d 19780 $zfin $zfin2 &&
+        cp mammoth2_generated_test.go $c9 &&
+        $zgobase/bin/codecgen -t '!notfastpath' -o mammoth2_codecgen${zsfx} -d 19781 mammoth2_generated_test.go &&
+        rm -f $c9 &&
+        echo "generators done!" 
+}
+
+_prebuild() {
+    echo "prebuild: zforce: $zforce , zexternal: $zexternal"
+    zmydir=`pwd`
+    zfin="test_values.generated.go"
+    zfin2="test_values_flex.generated.go"
+    zsfx="_generated_test.go"
+    # zpkg="ugorji.net/codec"
+    zpkg=${zmydir##*/src/}
+    zgobase=${zmydir%%/src/*}
+    # rm -f *_generated_test.go 
+    rm -f codecgen-*.go &&
+        _build &&
+        cp $zmydir/values_test.go $zmydir/$zfin &&
+        cp $zmydir/values_flex_test.go $zmydir/$zfin2 &&
+        _codegenerators &&
+        if [[ "$(type -t _codegenerators_external )" = "function" ]]; then _codegenerators_external ; fi &&
+        if [[ $zforce ]]; then go install ${zargs[*]} .; fi &&
+        echo "prebuild done successfully"
+    rm -f $zmydir/$zfin $zmydir/$zfin2 
+}
+
+_make() {
+    zforce=1
+    zexternal=1
+    ( cd codecgen && go install ${zargs[*]} . ) && _prebuild && go install ${zargs[*]} .
+    unset zforce zexternal
+}
+
+_clean() {
+    rm -f gen-from-tmpl.*generated.go \
+       codecgen-*.go \
+       test_values.generated.go test_values_flex.generated.go
+}
+
+_usage() {
+    cat <<EOF
+primary usage: $0 
+    -[tmpfxnld] for [tests, make, prebuild (force) (external), inlining diagnostics, mid-stack inlining, race detector]
+EOF
+    if [[ "$(type -t _usage_run)" = "function" ]]; then _usage_run ; fi
+}
+
+_main() {
+    if [[ -z "$1" ]]; then _usage; return 1; fi
+    local x
+    unset zforce zexternal
+    zargs=()
+    while getopts ":ctbqmnrgupfxlzd" flag
+    do
+        case "x$flag" in
+            'xf') zforce=1 ;;
+            'xx') zexternal=1 ;;
+            'xl') zargs+=("-gcflags"); zargs+=("-l=4") ;;
+            'xn') zargs+=("-gcflags"); zargs+=("-m") ;;
+            'xd') zargs+=("-race") ;;
+            x\?) _usage; return 1 ;;
+            *) x=$flag ;;
+        esac
+    done
+    shift $((OPTIND-1))
+    case "x$x" in
+        'xt') _tests "$@" ;;
+        'xq') _benchquick "$@" ;;
+        'xb') _bench "$@" ;;
+        'xm') _make "$@" ;;
+        'xr') _release "$@" ;;
+        'xg') _go ;;
+        'xu') _githubupdate ;;
+        'xp') _prebuild "$@" ;;
+        'xc') _clean "$@" ;;
+        'xz') _analyze "$@" ;;
+    esac
+    unset zforce zexternal 
+}
+
+[ "." = `dirname $0` ] && _main "$@"
+

vendor/github.com/ugorji/go/codec/gen-enc-chan.go.tmpl

+{{.Label}}:
+switch timeout{{.Sfx}} :=  z.EncBasicHandle().ChanRecvTimeout; {
+case timeout{{.Sfx}} == 0: // only consume available
+	for {
+		select {
+		case b{{.Sfx}} := <-{{.Chan}}:
+			{{ .Slice }} = append({{.Slice}}, b{{.Sfx}})
+		default:
+			break {{.Label}}
+		}
+	}
+case timeout{{.Sfx}} > 0: // consume until timeout
+	tt{{.Sfx}} := time.NewTimer(timeout{{.Sfx}})
+	for {
+		select {
+		case b{{.Sfx}} := <-{{.Chan}}:
+			{{.Slice}} = append({{.Slice}}, b{{.Sfx}})
+		case <-tt{{.Sfx}}.C:
+			// close(tt.C)
+			break {{.Label}}
+		}
+	}
+default: // consume until close
+	for b{{.Sfx}} := range {{.Chan}} {
+		{{.Slice}} = append({{.Slice}}, b{{.Sfx}})
+	}
+}

vendor/github.com/ugorji/go/codec/goversion_arrayof_gte_go15.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.5
+
+package codec
+
+import "reflect"
+
+const reflectArrayOfSupported = true
+
+func reflectArrayOf(count int, elem reflect.Type) reflect.Type {
+	return reflect.ArrayOf(count, elem)
+}

vendor/github.com/ugorji/go/codec/goversion_arrayof_lt_go15.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build !go1.5
+
+package codec
+
+import "reflect"
+
+const reflectArrayOfSupported = false
+
+func reflectArrayOf(count int, elem reflect.Type) reflect.Type {
+	panic("codec: reflect.ArrayOf unsupported in this go version")
+}

vendor/github.com/ugorji/go/codec/goversion_makemap_gte_go19.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.9
+
+package codec
+
+import "reflect"
+
+func makeMapReflect(t reflect.Type, size int) reflect.Value {
+	if size < 0 {
+		return reflect.MakeMapWithSize(t, 4)
+	}
+	return reflect.MakeMapWithSize(t, size)
+}

vendor/github.com/ugorji/go/codec/goversion_makemap_lt_go19.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build !go1.9
+
+package codec
+
+import "reflect"
+
+func makeMapReflect(t reflect.Type, size int) reflect.Value {
+	return reflect.MakeMap(t)
+}

vendor/github.com/ugorji/go/codec/goversion_unexportedembeddedptr_gte_go110.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.10
+
+package codec
+
+const allowSetUnexportedEmbeddedPtr = false

vendor/github.com/ugorji/go/codec/goversion_unexportedembeddedptr_lt_go110.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build !go1.10
+
+package codec
+
+const allowSetUnexportedEmbeddedPtr = true

vendor/github.com/ugorji/go/codec/goversion_unsupported_lt_go14.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build !go1.4
+
+package codec
+
+// This codec package will only work for go1.4 and above.
+// This is for the following reasons:
+//   - go 1.4 was released in 2014
+//   - go runtime is written fully in go
+//   - interface only holds pointers
+//   - reflect.Value is stabilized as 3 words
+
+func init() {
+	panic("codec: go 1.3 and below are not supported")
+}

vendor/github.com/ugorji/go/codec/goversion_vendor_eq_go15.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.5,!go1.6
+
+package codec
+
+import "os"
+
+var genCheckVendor = os.Getenv("GO15VENDOREXPERIMENT") == "1"

vendor/github.com/ugorji/go/codec/goversion_vendor_eq_go16.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.6,!go1.7
+
+package codec
+
+import "os"
+
+var genCheckVendor = os.Getenv("GO15VENDOREXPERIMENT") != "0"

vendor/github.com/ugorji/go/codec/goversion_vendor_gte_go17.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build go1.7
+
+package codec
+
+const genCheckVendor = true

vendor/github.com/ugorji/go/codec/goversion_vendor_lt_go15.go

+// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// +build !go1.5
+
+package codec
+
+var genCheckVendor = false

vendor/github.com/ugorji/go/codec/mammoth-test.go.tmpl

+// Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// Code generated from mammoth-test.go.tmpl - DO NOT EDIT.
+
+package codec
+
+import "testing"
+import "fmt"
+import "reflect"
+
+// TestMammoth has all the different paths optimized in fast-path
+// It has all the primitives, slices and maps.
+// 
+// For each of those types, it has a pointer and a non-pointer field.
+
+func init() { _ = fmt.Printf } // so we can include fmt as needed
+
+type TestMammoth struct {
+
+{{range .Values }}{{if .Primitive }}{{/*
+*/}}{{ .MethodNamePfx "F" true }} {{ .Primitive }}
+{{ .MethodNamePfx "Fptr" true }} *{{ .Primitive }}
+{{end}}{{end}}
+
+{{range .Values }}{{if not .Primitive }}{{if not .MapKey }}{{/*
+*/}}{{ .MethodNamePfx "F" false }} []{{ .Elem }}
+{{ .MethodNamePfx "Fptr" false }} *[]{{ .Elem }}
+{{end}}{{end}}{{end}}
+
+{{range .Values }}{{if not .Primitive }}{{if .MapKey }}{{/*
+*/}}{{ .MethodNamePfx "F" false }} map[{{ .MapKey }}]{{ .Elem }}
+{{ .MethodNamePfx "Fptr" false }} *map[{{ .MapKey }}]{{ .Elem }}
+{{end}}{{end}}{{end}}
+
+}
+
+{{range .Values }}{{if not .Primitive }}{{if not .MapKey }}{{/*
+*/}} type {{ .MethodNamePfx "typMbs" false }} []{{ .Elem }}
+func (_ {{ .MethodNamePfx "typMbs" false }}) MapBySlice() { }
+{{end}}{{end}}{{end}}
+
+{{range .Values }}{{if not .Primitive }}{{if .MapKey }}{{/*
+*/}} type {{ .MethodNamePfx "typMap" false }} map[{{ .MapKey }}]{{ .Elem }}
+{{end}}{{end}}{{end}}
+
+func doTestMammothSlices(t *testing.T, h Handle) {
+{{range $i, $e := .Values }}{{if not .Primitive }}{{if not .MapKey }}{{/*
+*/}}
+    var v{{$i}}va [8]{{ .Elem }}
+    for _, v := range [][]{{ .Elem }}{ nil, {}, { {{ nonzerocmd .Elem }}, {{ zerocmd .Elem }}, {{ zerocmd .Elem }}, {{ nonzerocmd .Elem }} } } { {{/*
+    // fmt.Printf(">>>> running mammoth slice v{{$i}}: %v\n", v)
+    //   - encode value to some []byte
+    //   - decode into a length-wise-equal []byte
+    //   - check if equal to initial slice
+    //   - encode ptr to the value
+    //   - check if encode bytes are same
+    //   - decode into ptrs to: nil, then 1-elem slice, equal-length, then large len slice
+    //   - decode into non-addressable slice of equal length, then larger len 
+    //   - for each decode, compare elem-by-elem to the original slice
+    //   - 
+    //   - rinse and repeat for a MapBySlice version
+    //   - 
+    */}}
+    var v{{$i}}v1, v{{$i}}v2 []{{ .Elem }}
+	v{{$i}}v1 = v
+	bs{{$i}} := testMarshalErr(v{{$i}}v1, h, t, "enc-slice-v{{$i}}")
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make([]{{ .Elem }}, len(v)) }
+	testUnmarshalErr(v{{$i}}v2, bs{{$i}}, h, t, "dec-slice-v{{$i}}")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}")
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make([]{{ .Elem }}, len(v)) }
+	testUnmarshalErr(reflect.ValueOf(v{{$i}}v2), bs{{$i}}, h, t, "dec-slice-v{{$i}}-noaddr") // non-addressable value
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}-noaddr")
+	// ...
+	bs{{$i}} = testMarshalErr(&v{{$i}}v1, h, t, "enc-slice-v{{$i}}-p")
+	v{{$i}}v2 = nil
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-slice-v{{$i}}-p")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}-p")
+	v{{$i}}va = [8]{{ .Elem }}{} // clear the array
+	v{{$i}}v2 = v{{$i}}va[:1:1]
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-slice-v{{$i}}-p-1")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}-p-1")
+	v{{$i}}va = [8]{{ .Elem }}{} // clear the array
+	v{{$i}}v2 = v{{$i}}va[:len(v{{$i}}v1):len(v{{$i}}v1)]
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-slice-v{{$i}}-p-len")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}-p-len")
+	v{{$i}}va = [8]{{ .Elem }}{} // clear the array
+	v{{$i}}v2 = v{{$i}}va[:]
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-slice-v{{$i}}-p-cap")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-slice-v{{$i}}-p-cap")
+	if len(v{{$i}}v1) > 1 {
+	v{{$i}}va = [8]{{ .Elem }}{} // clear the array
+	testUnmarshalErr((&v{{$i}}va)[:len(v{{$i}}v1)], bs{{$i}}, h, t, "dec-slice-v{{$i}}-p-len-noaddr")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}va[:len(v{{$i}}v1)], t, "equal-slice-v{{$i}}-p-len-noaddr")
+	v{{$i}}va = [8]{{ .Elem }}{} // clear the array
+	testUnmarshalErr((&v{{$i}}va)[:], bs{{$i}}, h, t, "dec-slice-v{{$i}}-p-cap-noaddr")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}va[:len(v{{$i}}v1)], t, "equal-slice-v{{$i}}-p-cap-noaddr")
+    }
+    // ...
+    var v{{$i}}v3, v{{$i}}v4 {{ .MethodNamePfx "typMbs" false }}
+	v{{$i}}v2 = nil
+    if v != nil { v{{$i}}v2 = make([]{{ .Elem }}, len(v)) }
+    v{{$i}}v3 = {{ .MethodNamePfx "typMbs" false }}(v{{$i}}v1)
+    v{{$i}}v4 = {{ .MethodNamePfx "typMbs" false }}(v{{$i}}v2)
+    bs{{$i}} = testMarshalErr(v{{$i}}v3, h, t, "enc-slice-v{{$i}}-custom")
+    testUnmarshalErr(v{{$i}}v4, bs{{$i}}, h, t, "dec-slice-v{{$i}}-custom")
+    testDeepEqualErr(v{{$i}}v3, v{{$i}}v4, t, "equal-slice-v{{$i}}-custom")
+    bs{{$i}} = testMarshalErr(&v{{$i}}v3, h, t, "enc-slice-v{{$i}}-custom-p")
+    v{{$i}}v2 = nil
+    v{{$i}}v4 = {{ .MethodNamePfx "typMbs" false }}(v{{$i}}v2)
+    testUnmarshalErr(&v{{$i}}v4, bs{{$i}}, h, t, "dec-slice-v{{$i}}-custom-p")
+    testDeepEqualErr(v{{$i}}v3, v{{$i}}v4, t, "equal-slice-v{{$i}}-custom-p")
+    }
+{{end}}{{end}}{{end}}
+}
+
+func doTestMammothMaps(t *testing.T, h Handle) {
+{{range $i, $e := .Values }}{{if not .Primitive }}{{if .MapKey }}{{/*
+*/}}
+    for _, v := range []map[{{ .MapKey }}]{{ .Elem }}{ nil, {}, { {{ nonzerocmd .MapKey }}:{{ zerocmd .Elem }} {{if ne "bool" .MapKey}}, {{ nonzerocmd .MapKey }}:{{ nonzerocmd .Elem }} {{end}} } } {
+    // fmt.Printf(">>>> running mammoth map v{{$i}}: %v\n", v)
+    var v{{$i}}v1, v{{$i}}v2 map[{{ .MapKey }}]{{ .Elem }}
+	v{{$i}}v1 = v
+	bs{{$i}} := testMarshalErr(v{{$i}}v1, h, t, "enc-map-v{{$i}}")
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make(map[{{ .MapKey }}]{{ .Elem }}, len(v)) } // reset map
+	testUnmarshalErr(v{{$i}}v2, bs{{$i}}, h, t, "dec-map-v{{$i}}")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-map-v{{$i}}")
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make(map[{{ .MapKey }}]{{ .Elem }}, len(v)) } // reset map
+	testUnmarshalErr(reflect.ValueOf(v{{$i}}v2), bs{{$i}}, h, t, "dec-map-v{{$i}}-noaddr") // decode into non-addressable map value
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-map-v{{$i}}-noaddr")
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make(map[{{ .MapKey }}]{{ .Elem }}, len(v)) } // reset map
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-map-v{{$i}}-p-len")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-map-v{{$i}}-p-len")
+	bs{{$i}} = testMarshalErr(&v{{$i}}v1, h, t, "enc-map-v{{$i}}-p")
+	v{{$i}}v2 = nil
+	testUnmarshalErr(&v{{$i}}v2, bs{{$i}}, h, t, "dec-map-v{{$i}}-p-nil")
+	testDeepEqualErr(v{{$i}}v1, v{{$i}}v2, t, "equal-map-v{{$i}}-p-nil")
+    // ...
+	if v == nil { v{{$i}}v2 = nil } else { v{{$i}}v2 = make(map[{{ .MapKey }}]{{ .Elem }}, len(v)) } // reset map
+    var v{{$i}}v3, v{{$i}}v4 {{ .MethodNamePfx "typMap" false }}
+	v{{$i}}v3 = {{ .MethodNamePfx "typMap" false }}(v{{$i}}v1)
+	v{{$i}}v4 = {{ .MethodNamePfx "typMap" false }}(v{{$i}}v2)
+    bs{{$i}} = testMarshalErr(v{{$i}}v3, h, t, "enc-map-v{{$i}}-custom")
+	testUnmarshalErr(v{{$i}}v4, bs{{$i}}, h, t, "dec-map-v{{$i}}-p-len")
+	testDeepEqualErr(v{{$i}}v3, v{{$i}}v4, t, "equal-map-v{{$i}}-p-len")
+    }
+{{end}}{{end}}{{end}}
+
+}
+
+func doTestMammothMapsAndSlices(t *testing.T, h Handle) {
+     doTestMammothSlices(t, h)
+     doTestMammothMaps(t, h)
+}

vendor/github.com/ugorji/go/codec/mammoth2-test.go.tmpl

+// +build !notfastpath
+
+// Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+// Code generated from mammoth2-test.go.tmpl - DO NOT EDIT.
+
+package codec
+
+// Increase codecoverage by covering all the codecgen paths, in fast-path and gen-helper.go....
+//
+// Add:
+// - test file for creating a mammoth generated file as _mammoth_generated.go
+//   - generate a second mammoth files in a different file: mammoth2_generated_test.go
+//     - mammoth-test.go.tmpl will do this
+//   - run codecgen on it, into mammoth2_codecgen_generated_test.go (no build tags)
+//   - as part of TestMammoth, run it also
+//   - this will cover all the codecgen, gen-helper, etc in one full run
+//   - check in mammoth* files into github also
+// - then
+//
+// Now, add some types:
+//  - some that implement BinaryMarshal, TextMarshal, JSONMarshal, and one that implements none of it
+//  - create a wrapper type that includes TestMammoth2, with it in slices, and maps, and the custom types
+//  - this wrapper object is what we work encode/decode (so that the codecgen methods are called)
+
+
+// import "encoding/binary"
+import "fmt"
+
+type TestMammoth2 struct {
+
+{{range .Values }}{{if .Primitive }}{{/*
+*/}}{{ .MethodNamePfx "F" true }} {{ .Primitive }}
+{{ .MethodNamePfx "Fptr" true }} *{{ .Primitive }}
+{{end}}{{end}}
+
+{{range .Values }}{{if not .Primitive }}{{if not .MapKey }}{{/*
+*/}}{{ .MethodNamePfx "F" false }} []{{ .Elem }}
+{{ .MethodNamePfx "Fptr" false }} *[]{{ .Elem }}
+{{end}}{{end}}{{end}}
+
+{{range .Values }}{{if not .Primitive }}{{if .MapKey }}{{/*
+*/}}{{ .MethodNamePfx "F" false }} map[{{ .MapKey }}]{{ .Elem }}
+{{ .MethodNamePfx "Fptr" false }} *map[{{ .MapKey }}]{{ .Elem }}
+{{end}}{{end}}{{end}}
+
+}
+
+// -----------
+
+type testMammoth2Binary uint64
+func (x testMammoth2Binary) MarshalBinary() (data []byte, err error) {
+data = make([]byte, 8)
+bigen.PutUint64(data, uint64(x))
+return
+}
+func (x *testMammoth2Binary) UnmarshalBinary(data []byte) (err error) {
+*x = testMammoth2Binary(bigen.Uint64(data))
+return
+}
+
+type testMammoth2Text uint64
+func (x testMammoth2Text) MarshalText() (data []byte, err error) {
+data = []byte(fmt.Sprintf("%b", uint64(x)))
+return
+}
+func (x *testMammoth2Text) UnmarshalText(data []byte) (err error) {
+_, err = fmt.Sscanf(string(data), "%b", (*uint64)(x))
+return
+}
+
+type testMammoth2Json uint64
+func (x testMammoth2Json) MarshalJSON() (data []byte, err error) {
+data = []byte(fmt.Sprintf("%v", uint64(x)))
+return
+}
+func (x *testMammoth2Json) UnmarshalJSON(data []byte) (err error) {
+_, err = fmt.Sscanf(string(data), "%v", (*uint64)(x))
+return
+}
+
+type testMammoth2Basic [4]uint64
+
+type TestMammoth2Wrapper struct {
+  V TestMammoth2
+  T testMammoth2Text
+  B testMammoth2Binary
+  J testMammoth2Json
+  C testMammoth2Basic
+  M map[testMammoth2Basic]TestMammoth2
+  L []TestMammoth2
+  A [4]int64
+}