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// +build go1.20
/*
* Copyright 2021 ByteDance Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package rt
import "unsafe"
// Growslice to newCap, not append length
// Note: the [old, newCap) will not be zeroed if et does not have any ptr data.
func GrowSlice(et *GoType, old GoSlice, newCap int) GoSlice {
if newCap < old.Len {
panic("growslice's newCap is smaller than old length")
}
s := growslice(old.Ptr, newCap, old.Cap, newCap - old.Len, et)
s.Len = old.Len
return s
}
//go:linkname growslice runtime.growslice
//goland:noinspection GoUnusedParameter
func growslice(oldPtr unsafe.Pointer, newLen, oldCap, num int, et *GoType) GoSlice
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