Initial hacky version of inspect source command

inspect/line.go

@@ -0,0 +1,32 @@
+package inspect
+
+// NewLine creates a new Line.
+func NewLine(filePath string, lineNum int) *Line {
+	return &Line{
+		FilePath:  filePath,
+		LineNum:   lineNum,
+		ObjectMap: map[string]*Object{},
+	}
+}
+
+// Line represents a source line within a file and the objects allocated by it.
+type Line struct {
+	FilePath    string
+	LineNum     int
+	ObjectMap   map[string]*Object
+	ObjectCount int
+	ByteSize    int64
+	MemSize     int64
+}
+
+// Add adds a Object to a Line.
+func (s *Line) 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
+	}
+}