94 lines
2.0 KiB
Go
94 lines
2.0 KiB
Go
/*
|
|
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package llgen
|
|
|
|
import (
|
|
"go/ast"
|
|
"go/parser"
|
|
"go/token"
|
|
"go/types"
|
|
"os"
|
|
|
|
"github.com/goplus/gogen/packages"
|
|
"github.com/goplus/llgo/cl"
|
|
"github.com/goplus/llgo/internal/mod"
|
|
"golang.org/x/tools/go/ssa"
|
|
"golang.org/x/tools/go/ssa/ssautil"
|
|
|
|
llssa "github.com/goplus/llgo/ssa"
|
|
)
|
|
|
|
func Init() {
|
|
llssa.Initialize(llssa.InitAll)
|
|
llssa.SetDebug(llssa.DbgFlagAll)
|
|
cl.SetDebug(cl.DbgFlagAll)
|
|
}
|
|
|
|
func PkgPath(dir string) string {
|
|
_, pkgPath, err := mod.Load(dir)
|
|
check(err)
|
|
return pkgPath
|
|
}
|
|
|
|
func Do(pkgPath, inFile, outFile string) {
|
|
ret := Gen(pkgPath, inFile, nil)
|
|
err := os.WriteFile(outFile, []byte(ret), 0644)
|
|
check(err)
|
|
}
|
|
|
|
func Gen(pkgPath, inFile string, src any) string {
|
|
fset := token.NewFileSet()
|
|
f, err := parser.ParseFile(fset, inFile, src, parser.ParseComments)
|
|
check(err)
|
|
|
|
files := []*ast.File{f}
|
|
name := f.Name.Name
|
|
if pkgPath == "" {
|
|
pkgPath = name
|
|
}
|
|
pkg := types.NewPackage(pkgPath, name)
|
|
imp := packages.NewImporter(fset)
|
|
ssaPkg, _, err := ssautil.BuildPackage(
|
|
&types.Config{Importer: imp}, fset, pkg, files, ssa.SanityCheckFunctions)
|
|
check(err)
|
|
|
|
if Verbose {
|
|
ssaPkg.WriteTo(os.Stderr)
|
|
}
|
|
|
|
prog := llssa.NewProgram(nil)
|
|
prog.SetRuntime(func() *types.Package {
|
|
rt, err := imp.Import(llssa.PkgRuntime)
|
|
check(err)
|
|
return rt
|
|
})
|
|
ret, err := cl.NewPackage(prog, ssaPkg, files)
|
|
check(err)
|
|
|
|
return ret.String()
|
|
}
|
|
|
|
func check(err error) {
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
var (
|
|
Verbose = true
|
|
)
|