/
mangle.go
89 lines (76 loc) · 2.52 KB
/
mangle.go
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// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package gen
import (
"fmt"
"go.uber.org/thriftrw/compile"
)
type mangler struct {
// Thrift file -> Type name -> value name
names map[string]map[string]string
// all names for custom types that have been taken so far
taken map[string]struct{}
}
func newMangler() *mangler {
return &mangler{
names: make(map[string]map[string]string),
taken: make(map[string]struct{}),
}
}
func (m *mangler) MangleType(spec compile.TypeSpec) string {
switch s := spec.(type) {
case *compile.MapSpec:
return fmt.Sprintf(
"Map_%s_%s", m.MangleType(s.KeySpec), m.MangleType(s.ValueSpec),
)
case *compile.ListSpec:
return fmt.Sprintf("List_%s", m.MangleType(s.ValueSpec))
case *compile.SetSpec:
setType := "slice"
if setUsesMap(s) {
setType = "map"
}
return fmt.Sprintf("Set_%s_%vType", m.MangleType(s.ValueSpec), setType)
}
// Native primitive types have unique names
thriftFile := spec.ThriftFile()
if thriftFile == "" {
return goCase(spec.ThriftName())
}
namesForFile, ok := m.names[thriftFile]
if !ok {
namesForFile = make(map[string]string)
m.names[thriftFile] = namesForFile
}
if name, ok := namesForFile[spec.ThriftName()]; ok {
return name
}
i := 0
baseName := goCase(spec.ThriftName())
name := baseName
for _, taken := m.taken[name]; taken; {
i++
name = fmt.Sprintf("%s_%d", baseName, i)
_, taken = m.taken[name]
}
m.taken[name] = struct{}{}
namesForFile[spec.ThriftName()] = name
return name
}