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f6ed4523dc
PiperOrigin-RevId: 449358041
33 lines
982 B
Go
33 lines
982 B
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package state
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import (
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"reflect"
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"unsafe"
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)
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// arrayFromSlice constructs a new pointer to the slice data.
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//
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// It would be similar to the following:
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//
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// x := make([]Foo, l, c)
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// a := ([l]Foo*)(unsafe.Pointer(x[0]))
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func arrayFromSlice(obj reflect.Value) reflect.Value {
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return reflect.NewAt(
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reflect.ArrayOf(obj.Cap(), obj.Type().Elem()),
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unsafe.Pointer(obj.Pointer()))
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}
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