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sonic/ast/utils.go
Yi Duan e9b6634cac
feat: ast supports Node.Exists()/MapUseNode()/ArrayUseNode() (#19)
* feat: ast supports Node.Exists()/MapUseNode()/ArrayUseNode()

* jump table for swithcRawType

Co-authored-by: duanyi.aster <duanyi.aster@bytedance.com>
2021-06-24 16:37:32 +08:00

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1.4 KiB
Go

/*
* 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 ast
import (
`unsafe`
`github.com/bytedance/sonic/internal/rt`
)
//go:nosplit
func mem2ptr(s []byte) unsafe.Pointer {
return (*rt.GoSlice)(unsafe.Pointer(&s)).Ptr
}
//go:nosplit
func ptr2slice(s unsafe.Pointer, l int, c int) unsafe.Pointer {
slice := &rt.GoSlice{
Ptr: s,
Len: l,
Cap: c,
}
return unsafe.Pointer(slice)
}
//go:nosplit
func str2ptr(s string) unsafe.Pointer {
return (*rt.GoString)(unsafe.Pointer(&s)).Ptr
}
//go:nosplit
func addr2str(p unsafe.Pointer, n int64) (s string) {
(*rt.GoString)(unsafe.Pointer(&s)).Ptr = p
(*rt.GoString)(unsafe.Pointer(&s)).Len = int(n)
return
}
const _SPACE_CHAR_MASK = (1<<' ')|(1<<'\t')|(1<<'\r')|(1<<'\n')
func isSpace(c byte) bool {
return (int(1<<c) & _SPACE_CHAR_MASK) != 0
}