c/clang:symbol dump demo

c/clang/_demo/symboldump/symboldump.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/clang"
+)
+
+type Context struct {
+	namespaceName string
+	className     string
+}
+
+func newContext() *Context {
+	return &Context{}
+}
+
+func (c *Context) setNamespaceName(name string) {
+	c.namespaceName = name
+}
+
+func (c *Context) setClassName(name string) {
+	c.className = name
+}
+
+var context = newContext()
+
+func print_cursor_info(cursor clang.Cursor) {
+	cursorStr := cursor.String()
+	symbol := cursor.Mangling()
+	defer symbol.Dispose()
+	defer cursorStr.Dispose()
+
+	if context.namespaceName != "" && context.className != "" {
+		fmt.Printf("%s:%s", context.namespaceName, context.className)
+	} else if context.namespaceName != "" {
+		fmt.Printf("%s", context.namespaceName)
+	}
+	c.Printf(c.Str("%s\n"), cursorStr.CStr())
+
+	if cursor.Kind == clang.CXXMethod || cursor.Kind == clang.FunctionDecl {
+		c.Printf(c.Str("symbol:%s\n"), symbol.CStr())
+
+		typeStr := cursor.ResultType().String()
+		defer typeStr.Dispose()
+		c.Printf(c.Str("Return Type: %s\n"), typeStr.CStr())
+		c.Printf(c.Str("Parameters(%d): ( "), cursor.NumArguments())
+
+		for i := 0; i < int(cursor.NumArguments()); i++ {
+			argCurSor := cursor.Argument(uint8(i))
+			argType := argCurSor.Type().String()
+			argName := argCurSor.String()
+			c.Printf(c.Str("%s %s"), argType.CStr(), argName.CStr())
+			if i < int(cursor.NumArguments())-1 {
+				c.Printf(c.Str(", "))
+			}
+
+			argType.Dispose()
+			argName.Dispose()
+		}
+
+		c.Printf(c.Str(" )\n"))
+		println("--------------------------------")
+	}
+}
+
+func visit(cursor, parent clang.Cursor, clientData c.Pointer) clang.ChildVisitResult {
+	if cursor.Kind == clang.Namespace {
+		nameStr := cursor.String()
+		context.setNamespaceName(c.GoString(nameStr.CStr()))
+		clang.VisitChildren(cursor, visit, nil)
+		context.setNamespaceName("")
+	} else if cursor.Kind == clang.ClassDecl {
+		nameStr := cursor.String()
+		context.setClassName(c.GoString(nameStr.CStr()))
+		clang.VisitChildren(cursor, visit, nil)
+		context.setClassName("")
+	} else if cursor.Kind == clang.CXXMethod || cursor.Kind == clang.FunctionDecl {
+		print_cursor_info(cursor)
+	}
+
+	return clang.ChildVisit_Continue
+}
+
+func parse(filename *c.Char) {
+	index := clang.CreateIndex(0, 0)
+	args := make([]*c.Char, 3)
+	args[0] = c.Str("-x")
+	args[1] = c.Str("c++")
+	args[2] = c.Str("-std=c++11")
+	unit := index.ParseTranslationUnit(
+		filename,
+		unsafe.SliceData(args), 3,
+		nil, 0,
+		clang.TranslationUnit_None,
+	)
+
+	if unit == nil {
+		println("Unable to parse translation unit. Quitting.")
+		c.Exit(1)
+	}
+
+	cursor := unit.Cursor()
+
+	clang.VisitChildren(cursor, visit, nil)
+	unit.Dispose()
+	index.Dispose()
+}
+
+func main() {
+	if c.Argc != 2 {
+		fmt.Fprintln(os.Stderr, "Usage: <C++ header file>\n")
+		return
+	} else {
+		sourceFile := *c.Advance(c.Argv, 1)
+		parse(sourceFile)
+	}
+}

c/clang/_demo/symboldump/test.h

@@ -0,0 +1,40 @@
+#ifndef ZOO_H
+#define ZOO_H
+
+namespace forest
+{
+
+class Bear
+{
+  public:
+    void roar();
+    int eat(int berries, int fish);
+    void sleep(const char *where);
+};
+
+} // namespace forest
+
+namespace ocean
+{
+
+class Shark
+{
+  public:
+    void roar();
+    int eat(int fish, int seals);
+    void sleep(const char *where);
+};
+
+} // namespace ocean
+
+class Eagle
+{
+  public:
+    void roar();
+    int eat(int mice, int fish);
+    void sleep(const char *where);
+};
+
+void zookeeper(int money);
+
+#endif // ZOO_H

c/clang/_wrap/cursor.cpp

@@ -1,29 +1,67 @@
-#include <stdio.h>
 #include <clang-c/Index.h>
+#include <stdio.h>
 
-typedef enum CXChildVisitResult(* wrap_CXCursorVisitor) (CXCursor *cursor, CXCursor *parent, CXClientData client_data);
+typedef enum CXChildVisitResult (*wrap_CXCursorVisitor)(CXCursor *cursor, CXCursor *parent, CXClientData client_data);
 
-typedef struct {
-    CXClientData         data;
+typedef struct
+{
+    CXClientData data;
     wrap_CXCursorVisitor visitor;
 } wrap_data;
 
-CXChildVisitResult wrap_visitor(CXCursor cursor, CXCursor parent, CXClientData data) {
-    wrap_data *d = (wrap_data*)(data);
-    return d->visitor(&cursor,&parent,d->data);
+CXChildVisitResult wrap_visitor(CXCursor cursor, CXCursor parent, CXClientData data)
+{
+    wrap_data *d = (wrap_data *)(data);
+    return d->visitor(&cursor, &parent, d->data);
 }
 
-extern "C" {
+extern "C"
+{
 
-CXString wrap_clang_getCursorSpelling(CXCursor *cur) {
-    return clang_getCursorSpelling(*cur);
-}
+    CXString wrap_clang_getCursorSpelling(CXCursor *cur)
+    {
+        return clang_getCursorSpelling(*cur);
+    }
 
-unsigned wrap_clang_visitChildren(CXCursor *parent, 
-    wrap_CXCursorVisitor visitor,
-    CXClientData client_data) {
-    wrap_data data = {client_data,visitor};
-    return clang_visitChildren(*parent,wrap_visitor,CXClientData(&data));
-}
+    CXString wrap_clang_Cursor_getMangling(CXCursor *cur)
+    {
+        return clang_Cursor_getMangling(*cur);
+    }
+
+    int wrap_clang_Cursor_getNumArguments(CXCursor *cur)
+    {
+        return clang_Cursor_getNumArguments(*cur);
+    }
+
+    void wrap_clang_Cursor_getArgument(CXCursor *C, unsigned i, CXCursor *argCur)
+    {
+        *argCur = clang_Cursor_getArgument(*C, i);
+    }
+
+    void wrap_clang_getTranslationUnitCursor(CXTranslationUnit uint, CXCursor *cur)
+    {
+        *cur = clang_getTranslationUnitCursor(uint);
+    }
+
+    void wrap_clang_getCursorType(CXCursor *cur, CXType *typ)
+    {
+        *typ = clang_getCursorType(*cur);
+    }
+
+    void wrap_clang_getCursorResultType(CXCursor *cur, CXType *typ)
+    {
+        *typ = clang_getCursorResultType(*cur);
+    }
+
+    CXString wrap_clang_getTypeSpelling(CXType *typ)
+    {
+        return clang_getTypeSpelling(*typ);
+    }
+
+    unsigned wrap_clang_visitChildren(CXCursor *parent, wrap_CXCursorVisitor visitor, CXClientData client_data)
+    {
+        wrap_data data = {client_data, visitor};
+        return clang_visitChildren(*parent, wrap_visitor, CXClientData(&data));
+    }
 
 } // extern "C"