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lookup.go
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lookup.go
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// Copyright (C) 2018 Google 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 main
import (
"strings"
)
type enum struct {
API string
Type string
Name string
}
var enums = map[int64][]enum{}
var bitfields = map[string]map[int64][]enum{}
func registerEnum(api, ty, name string, value int64) {
enums[value] = append(enums[value], enum{api, ty, name})
}
func registerBitfield(api, ty, name string, value int64) {
registerEnum(api, ty, name, value)
m, ok := bitfields[ty]
if !ok {
m = map[int64][]enum{}
bitfields[ty] = m
}
m[value] = append(m[value], enum{api, ty, name})
}
func LookupEnum(value int64) []enum {
return enums[value]
}
func LookupBitfields(value int64) []enum {
r := []enum{}
if value != 0 {
for ty, m := range bitfields {
names := []string{}
mask := int64(0)
api := ""
for bit, vs := range m {
if (value & bit) == bit {
mask |= bit
for _, v := range vs {
names = append(names, v.Name)
}
api = vs[0].API
}
}
if mask == value {
r = append(r, enum{api, ty, strings.Join(names, " | ")})
}
}
}
return r
}