build: separate compiler and libs

compiler/chore/_deprecated/clang/parser/parse.go

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2022 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 parser
+
+import (
+	"bytes"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/goplus/llgo/xtool/clang/ast"
+	jsoniter "github.com/json-iterator/go"
+)
+
+type Mode uint
+
+// -----------------------------------------------------------------------------
+
+type ParseError struct {
+	Err    error
+	Stderr []byte
+}
+
+func (p *ParseError) Error() string {
+	if len(p.Stderr) > 0 {
+		return string(p.Stderr)
+	}
+	return p.Err.Error()
+}
+
+// -----------------------------------------------------------------------------
+
+type Config struct {
+	Json   *[]byte
+	Flags  []string
+	Stderr bool
+}
+
+func DumpAST(filename string, conf *Config) (result []byte, warning []byte, err error) {
+	if conf == nil {
+		conf = new(Config)
+	}
+	skiperr := strings.HasSuffix(filename, "vfprintf.c.i")
+	stdout := NewPagedWriter()
+	stderr := new(bytes.Buffer)
+	args := []string{"-Xclang", "-ast-dump=json", "-fsyntax-only", filename}
+	if len(conf.Flags) != 0 {
+		args = append(conf.Flags, args...)
+	}
+	cmd := exec.Command("clang", args...)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = stdout
+	if conf.Stderr && !skiperr {
+		cmd.Stderr = os.Stderr
+	} else {
+		cmd.Stderr = stderr
+	}
+	err = cmd.Run()
+	errmsg := stderr.Bytes()
+	if err != nil && !skiperr {
+		return nil, nil, &ParseError{Err: err, Stderr: errmsg}
+	}
+	return stdout.Bytes(), errmsg, nil
+}
+
+// -----------------------------------------------------------------------------
+
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
+func ParseFileEx(filename string, mode Mode, conf *Config) (file *ast.Node, warning []byte, err error) {
+	out, warning, err := DumpAST(filename, conf)
+	if err != nil {
+		return
+	}
+	if conf != nil && conf.Json != nil {
+		*conf.Json = out
+	}
+	file = new(ast.Node)
+	err = json.Unmarshal(out, file)
+	if err != nil {
+		err = &ParseError{Err: err}
+	}
+	return
+}
+
+func ParseFile(filename string, mode Mode) (file *ast.Node, warning []byte, err error) {
+	return ParseFileEx(filename, mode, nil)
+}
+
+// -----------------------------------------------------------------------------