Merge pull request #854 from luoliwoshang/c/clang/loc2cursor

c/clang:location to cursor

c/clang/_wrap/cursor.cpp

@@ -33,6 +33,10 @@ void wrap_clang_getOverriddenCursors(CXCursor *cursor, CXCursor **overridden, un
     clang_getOverriddenCursors(*cursor, overridden, num_overridden);
 }
 
+void wrap_clang_getCursor(CXTranslationUnit uint, CXSourceLocation *loc, CXCursor *cur) {
+    *cur = clang_getCursor(uint, *loc);
+}
+
 void wrap_clang_getCursorLocation(CXCursor *cur, CXSourceLocation *loc) { *loc = clang_getCursorLocation(*cur); }
 
 void wrap_clang_getCursorExtent(CXCursor *cur, CXSourceRange *range) { *range = clang_getCursorExtent(*cur); }

c/clang/clang.go

@@ -1710,6 +1710,30 @@ func (c Cursor) OverriddenCursors(overridden **Cursor, numOverridden *c.Uint) {
 // llgo:link (*Cursor).DisposeOverriddenCursors C.clang_disposeOverriddenCursors
 func (c *Cursor) DisposeOverriddenCursors() {}
 
+/**
+ * Map a source location to the cursor that describes the entity at that
+ * location in the source code.
+ *
+ * clang_getCursor() maps an arbitrary source location within a translation
+ * unit down to the most specific cursor that describes the entity at that
+ * location. For example, given an expression \c x + y, invoking
+ * clang_getCursor() with a source location pointing to "x" will return the
+ * cursor for "x"; similarly for "y". If the cursor points anywhere between
+ * "x" or "y" (e.g., on the + or the whitespace around it), clang_getCursor()
+ * will return a cursor referring to the "+" expression.
+ *
+ * \returns a cursor representing the entity at the given source location, or
+ * a NULL cursor if no such entity can be found.
+ */
+
+// llgo:link (*TranslationUnit).wrapGetCursor C.wrap_clang_getCursor
+func (l *TranslationUnit) wrapGetCursor(loc *SourceLocation, cur *Cursor) {}
+
+func (l *TranslationUnit) GetCursor(loc *SourceLocation) (cur Cursor) {
+	l.wrapGetCursor(loc, &cur)
+	return
+}
+
 /**
  * Retrieve the physical location of the source constructor referenced
  * by the given cursor.