80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
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/*
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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 main
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import (
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"fmt"
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"go/ast"
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"go/importer"
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"go/parser"
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"go/token"
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"go/types"
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"os"
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"path/filepath"
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"github.com/goplus/llgo/cl"
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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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func main() {
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if len(os.Args) != 2 {
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fmt.Fprintln(os.Stderr, "Usage: llgen xxx.go")
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return
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}
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inFile := os.Args[1]
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fset := token.NewFileSet()
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f, err := parser.ParseFile(fset, inFile, nil, parser.ParseComments)
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check(err)
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files := []*ast.File{f}
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name := f.Name.Name
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pkg := types.NewPackage(name, name)
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foo, _, err := ssautil.BuildPackage(
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&types.Config{Importer: importer.Default()}, fset, pkg, files, ssa.SanityCheckFunctions)
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check(err)
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foo.WriteTo(os.Stderr)
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for _, m := range foo.Members {
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if f, ok := m.(*ssa.Function); ok {
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f.WriteTo(os.Stderr)
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}
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}
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llssa.Initialize(llssa.InitAll)
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llssa.SetDebug(llssa.DbgFlagAll)
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cl.SetDebug(cl.DbgFlagAll)
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prog := llssa.NewProgram(nil)
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ret, err := cl.NewPackage(prog, foo, nil)
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check(err)
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dir, _ := filepath.Split(inFile)
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outFile := dir + "out.ll"
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err = os.WriteFile(outFile, []byte(ret.String()), 0644)
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check(err)
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}
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func check(err error) {
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if err != nil {
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panic(err)
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}
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}
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