github.com/shogo82148/std@v1.22.1-0.20240327122250-4e474527810c/internal/abi/map.go (about)

     1  // Copyright 2023 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package abi
     6  
     7  // Map constants common to several packages
     8  // runtime/runtime-gdb.py:MapTypePrinter contains its own copy
     9  const (
    10  	// Maximum number of key/elem pairs a bucket can hold.
    11  	MapBucketCountBits = 3
    12  	MapBucketCount     = 1 << MapBucketCountBits
    13  
    14  	// Maximum key or elem size to keep inline (instead of mallocing per element).
    15  	// Must fit in a uint8.
    16  	// Note: fast map functions cannot handle big elems (bigger than MapMaxElemBytes).
    17  	MapMaxKeyBytes  = 128
    18  	MapMaxElemBytes = 128
    19  )
    20  
    21  // ZeroValSize is the size in bytes of runtime.zeroVal.
    22  const ZeroValSize = 1024