github.com/patricebensoussan/go/codec@v1.2.99/gen-dec-array.go.tmpl (about) 1 {{var "v"}} := {{if not isArray}}*{{end}}{{ .Varname }} 2 {{var "h"}}, {{var "l"}} := z.DecSliceHelperStart() {{/* // helper, containerLenS */}} 3 {{if not isArray -}} 4 var {{var "c"}} bool {{/* // changed */}} 5 _ = {{var "c"}} 6 if {{var "h"}}.IsNil { 7 if {{var "v"}} != nil { 8 {{var "v"}} = nil 9 {{var "c"}} = true 10 } 11 } else {{end -}} 12 if {{var "l"}} == 0 { 13 {{if isSlice -}} 14 if {{var "v"}} == nil { 15 {{var "v"}} = []{{ .Typ }}{} 16 {{var "c"}} = true 17 } else if len({{var "v"}}) != 0 { 18 {{var "v"}} = {{var "v"}}[:0] 19 {{var "c"}} = true 20 } {{else if isChan }}if {{var "v"}} == nil { 21 {{var "v"}} = make({{ .CTyp }}, 0) 22 {{var "c"}} = true 23 } 24 {{end -}} 25 } else { 26 {{var "hl"}} := {{var "l"}} > 0 27 var {{var "rl"}} int 28 _ = {{var "rl"}} 29 {{if isSlice }} if {{var "hl"}} { 30 if {{var "l"}} > cap({{var "v"}}) { 31 {{var "rl"}} = z.DecInferLen({{var "l"}}, z.DecBasicHandle().MaxInitLen, {{ .Size }}) 32 if {{var "rl"}} <= cap({{var "v"}}) { 33 {{var "v"}} = {{var "v"}}[:{{var "rl"}}] 34 } else { 35 {{var "v"}} = make([]{{ .Typ }}, {{var "rl"}}) 36 } 37 {{var "c"}} = true 38 } else if {{var "l"}} != len({{var "v"}}) { 39 {{var "v"}} = {{var "v"}}[:{{var "l"}}] 40 {{var "c"}} = true 41 } 42 } 43 {{end -}} 44 var {{var "j"}} int 45 {{/* // var {{var "dn"}} bool */ -}} 46 for {{var "j"}} = 0; ({{var "hl"}} && {{var "j"}} < {{var "l"}}) || !({{var "hl"}} || z.DecCheckBreak()); {{var "j"}}++ { // bounds-check-elimination 47 {{if not isArray}} if {{var "j"}} == 0 && {{var "v"}} == nil { 48 if {{var "hl"}} { 49 {{var "rl"}} = z.DecInferLen({{var "l"}}, z.DecBasicHandle().MaxInitLen, {{ .Size }}) 50 } else { 51 {{var "rl"}} = {{if isSlice}}8{{else if isChan}}64{{end}} 52 } 53 {{var "v"}} = make({{if isSlice}}[]{{ .Typ }}{{else if isChan}}{{.CTyp}}{{end}}, {{var "rl"}}) 54 {{var "c"}} = true 55 } 56 {{end -}} 57 {{var "h"}}.ElemContainerState({{var "j"}}) 58 {{/* {{var "dn"}} = r.TryDecodeAsNil() */}}{{/* commented out, as decLineVar handles this already each time */ -}} 59 {{if isChan}}{{ $x := printf "%[1]vvcx%[2]v" .TempVar .Rand }}var {{$x}} {{ .Typ }} 60 {{ decLineVar $x -}} 61 {{var "v"}} <- {{ $x }} 62 {{else}}{{/* // if indefinite, etc, then expand the slice if necessary */ -}} 63 var {{var "db"}} bool 64 if {{var "j"}} >= len({{var "v"}}) { 65 {{if isSlice }} {{var "v"}} = append({{var "v"}}, {{ zero }}) 66 {{var "c"}} = true 67 {{else}} z.DecArrayCannotExpand(len(v), {{var "j"}}+1); {{var "db"}} = true 68 {{end -}} 69 } 70 if {{var "db"}} { 71 z.DecSwallow() 72 } else { 73 {{ $x := printf "%[1]vv%[2]v[%[1]vj%[2]v]" .TempVar .Rand }}{{ decLineVar $x -}} 74 } 75 {{end -}} 76 } 77 {{if isSlice}} if {{var "j"}} < len({{var "v"}}) { 78 {{var "v"}} = {{var "v"}}[:{{var "j"}}] 79 {{var "c"}} = true 80 } else if {{var "j"}} == 0 && {{var "v"}} == nil { 81 {{var "v"}} = make([]{{ .Typ }}, 0) 82 {{var "c"}} = true 83 } 84 {{end -}} 85 } 86 {{var "h"}}.End() 87 {{if not isArray }}if {{var "c"}} { 88 *{{ .Varname }} = {{var "v"}} 89 } 90 {{end -}}