chore: clangpp, clangast

chore/clangpp/clangpp.go

@@ -0,0 +1,41 @@
+/*
+ * 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 main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/goplus/llgo/x/clang/preprocessor"
+)
+
+func usage() {
+	fmt.Fprintf(os.Stderr, "Usage: clangpp source.c\n")
+}
+
+func main() {
+	if len(os.Args) < 2 {
+		usage()
+		return
+	}
+	infile := os.Args[1]
+	outfile := infile + ".i"
+	if err := preprocessor.Do(infile, outfile, nil); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}