Initial hacky version of inspect source command

inspect/file.go

@@ -0,0 +1,30 @@
+package inspect
+
+// NewFile creates a new File.
+func NewFile(filePath string) *File {
+	return &File{
+		FilePath:  filePath,
+		ObjectMap: map[string]*Object{},
+	}
+}
+
+// File represents a source file and the lines and objects allocated by them.
+type File struct {
+	FilePath    string
+	ObjectMap   map[string]*Object
+	ObjectCount int
+	ByteSize    int64
+	MemSize     int64
+}
+
+// Add adds a object to a File.
+func (s *File) Add(obj *Object) {
+	_, ok := s.ObjectMap[obj.Address]
+	if !ok && obj.File != "" && obj.Line != 0 {
+		s.ObjectCount++
+		s.ByteSize = s.ByteSize + obj.ByteSize
+		s.MemSize = s.MemSize + obj.MemSize
+
+		s.ObjectMap[obj.Address] = obj
+	}
+}