131 lines
3.9 KiB
Go
131 lines
3.9 KiB
Go
/*
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* Copyright (c) 2023 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 loader
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/*
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import (
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"go/ast"
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"go/token"
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"go/types"
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"github.com/goplus/llgo/build"
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"golang.org/x/tools/go/ssa"
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)
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type Package struct {
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SSA *ssa.Package
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EmbedGlobals map[string][]*EmbedFile
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}
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type EmbedFile struct {
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/*
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Name string
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Size uint64
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Hash string // hash of the file (as a hex string)
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NeedsData bool // true if this file is embedded as a byte slice
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Data []byte // contents of this file (only if NeedsData is set)
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*/
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/*
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}
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type Context struct {
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*ssa.Program
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}
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func (ctx *Context) Load(pkg build.Package) (ret Package, err error) {
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return
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}
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// BuildPackage builds an SSA program with IR for a single package.
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//
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// It populates pkg by type-checking the specified file ASTs. All
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// dependencies are loaded using the importer specified by tc, which
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// typically loads compiler export data; SSA code cannot be built for
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// those packages. BuildPackage then constructs an ssa.Program with all
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// dependency packages created, and builds and returns the SSA package
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// corresponding to pkg.
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//
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// The caller must have set pkg.Path() to the import path.
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//
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// The operation fails if there were any type-checking or import errors.
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//
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// See ../example_test.go for an example.
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func BuildPackage(tc *types.Config, fset *token.FileSet, pkg *types.Package, files []*ast.File, mode ssa.BuilderMode) (*ssa.Package, *types.Info, error) {
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if fset == nil {
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panic("no token.FileSet")
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}
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if pkg.Path() == "" {
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panic("package has no import path")
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}
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info := &types.Info{
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Types: make(map[ast.Expr]types.TypeAndValue),
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Defs: make(map[*ast.Ident]types.Object),
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Uses: make(map[*ast.Ident]types.Object),
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Implicits: make(map[ast.Node]types.Object),
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Scopes: make(map[ast.Node]*types.Scope),
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Selections: make(map[*ast.SelectorExpr]*types.Selection),
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}
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typeparams.InitInstanceInfo(info)
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versions.InitFileVersions(info)
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if err := types.NewChecker(tc, fset, pkg, info).Files(files); err != nil {
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return nil, nil, err
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}
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prog := ssa.NewProgram(fset, mode)
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// Create SSA packages for all imports.
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// Order is not significant.
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created := make(map[*types.Package]bool)
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var createAll func(pkgs []*types.Package)
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createAll = func(pkgs []*types.Package) {
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for _, p := range pkgs {
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if !created[p] {
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created[p] = true
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prog.CreatePackage(p, nil, nil, true)
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createAll(p.Imports())
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}
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}
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}
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createAll(pkg.Imports())
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// TODO(adonovan): we could replace createAll with just:
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//
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// // Create SSA packages for all imports.
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// for _, p := range pkg.Imports() {
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// prog.CreatePackage(p, nil, nil, true)
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// }
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//
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// (with minor changes to changes to ../builder_test.go as
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// shown in CL 511715 PS 10.) But this would strictly violate
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// the letter of the doc comment above, which says "all
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// dependencies created".
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//
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// Tim makes the good point with some extra work we could
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// remove the need for any CreatePackage calls except the
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// ones with syntax (i.e. primary packages). Of course
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// You wouldn't have ssa.Packages and Members for as
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// many things but no-one really uses that anyway.
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// I wish I had done this from the outset.
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// Create and build the primary package.
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ssapkg := prog.CreatePackage(pkg, files, info, false)
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ssapkg.Build()
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return ssapkg, info, nil
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}
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*/
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