69 lines
1.8 KiB
Go
69 lines
1.8 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 llgen
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import (
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"go/types"
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"os"
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"github.com/goplus/llgo/cl"
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"golang.org/x/tools/go/packages"
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"golang.org/x/tools/go/ssa"
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"golang.org/x/tools/go/ssa/ssautil"
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llssa "github.com/goplus/llgo/ssa"
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)
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const (
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loadFiles = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles
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loadImports = loadFiles | packages.NeedImports
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loadTypes = loadImports | packages.NeedTypes | packages.NeedTypesSizes
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loadSyntax = loadTypes | packages.NeedSyntax | packages.NeedTypesInfo
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)
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func GenFrom(fileOrPkg string) string {
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cfg := &packages.Config{
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Mode: loadSyntax,
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}
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initial, err := packages.Load(cfg, fileOrPkg)
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check(err)
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_, pkgs := ssautil.AllPackages(initial, ssa.SanityCheckFunctions)
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pkg := initial[0]
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ssaPkg := pkgs[0]
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ssaPkg.Build()
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prog := llssa.NewProgram(nil)
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prog.SetRuntime(func() *types.Package {
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rt, err := packages.Load(cfg, llssa.PkgRuntime)
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check(err)
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return rt[0].Types
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})
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ret, err := cl.NewPackage(prog, ssaPkg, pkg.Syntax)
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check(err)
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return ret.String()
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}
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func DoFile(fileOrPkg, outFile string) {
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ret := GenFrom(fileOrPkg)
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err := os.WriteFile(outFile, []byte(ret), 0644)
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check(err)
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}
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