67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
/*
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* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package typepatch
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import (
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"go/token"
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"go/types"
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"unsafe"
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)
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type typesScope struct {
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parent *types.Scope
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children []*types.Scope
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number int
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elems map[string]types.Object // TODO(xsw): ensure offset of elems
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pos, end token.Pos
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comment string
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isFunc bool
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}
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type object struct {
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parent *types.Scope
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pos token.Pos
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pkg *types.Package // TODO(xsw): ensure offset of pkg
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unused [8]byte
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}
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type iface struct {
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tab unsafe.Pointer
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data unsafe.Pointer
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}
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func setPkg(o types.Object, pkg *types.Package) {
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data := (*iface)(unsafe.Pointer(&o)).data
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(*object)(data).pkg = pkg
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}
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func setObject(scope *types.Scope, name string, o types.Object) {
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s := (*typesScope)(unsafe.Pointer(scope))
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s.elems[name] = o
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}
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func Pkg(pkg, alt *types.Package) *types.Package {
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scope := pkg.Scope()
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altScope := alt.Scope()
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for _, name := range altScope.Names() {
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o := altScope.Lookup(name)
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setPkg(o, pkg)
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setObject(scope, name, o)
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}
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return pkg
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}
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