Introduce shallow clone for shapes (#34)

Author: yury-palyanitsa

complex.go

@@ -38,6 +38,12 @@ func (s *ArrayShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *ArrayShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *ArrayShape) clone(base *BaseShape, clonedMap map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -307,6 +313,12 @@ func (s *ObjectShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *ObjectShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *ObjectShape) clone(base *BaseShape, clonedMap map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -734,6 +746,12 @@ func (s *UnionShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *UnionShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *UnionShape) clone(base *BaseShape, clonedMap map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -833,6 +851,12 @@ func (s *JSONShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *JSONShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *JSONShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -881,6 +905,12 @@ func (s *UnknownShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *UnknownShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *UnknownShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -919,6 +949,12 @@ func (s *RecursiveShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *RecursiveShape) cloneShallow(base *BaseShape) Shape {
+	c := *s
+	c.BaseShape = base
+	return &c
+}
+
 func (s *RecursiveShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base

mocks.go

@@ -26,6 +26,10 @@ func (u MockShape) check() error {
 	return u.MockCheck()
 }
 
+func (u MockShape) cloneShallow(base *BaseShape) Shape {
+	return u.clone(base, nil)
+}
+
 func (u MockShape) clone(base *BaseShape, clonedMap map[int64]*BaseShape) Shape {
 	return u.MockClone(base, clonedMap)
 }

scalars.go

@@ -82,6 +82,10 @@ func (s *IntegerShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *IntegerShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *IntegerShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -287,6 +291,10 @@ func (s *NumberShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *NumberShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *NumberShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -464,6 +472,10 @@ func (s *StringShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *StringShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *StringShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -617,6 +629,10 @@ func (s *FileShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *FileShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *FileShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -748,6 +764,10 @@ func (s *BooleanShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *BooleanShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *BooleanShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -836,6 +856,10 @@ func (s *DateTimeShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *DateTimeShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *DateTimeShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -925,6 +949,10 @@ func (s *DateTimeOnlyShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *DateTimeOnlyShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *DateTimeOnlyShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -983,6 +1011,10 @@ func (s *DateOnlyShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *DateOnlyShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *DateOnlyShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -1038,6 +1070,10 @@ func (s *TimeOnlyShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *TimeOnlyShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *TimeOnlyShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -1096,6 +1132,10 @@ func (s *AnyShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *AnyShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *AnyShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base
@@ -1146,6 +1186,10 @@ func (s *NilShape) Base() *BaseShape {
 	return s.BaseShape
 }
 
+func (s *NilShape) cloneShallow(base *BaseShape) Shape {
+	return s.clone(base, nil)
+}
+
 func (s *NilShape) clone(base *BaseShape, _ map[int64]*BaseShape) Shape {
 	c := *s
 	c.BaseShape = base

shape.go

@@ -268,6 +268,14 @@ func (s *BaseShape) AliasTo(source *BaseShape) *BaseShape {
 	return s
 }
 
+// CloneShallow creates a shallow copy of the shape.
+func (s *BaseShape) CloneShallow() *BaseShape {
+	c := *s
+	ptr := &c
+	c.Shape = s.Shape.cloneShallow(ptr)
+	return ptr
+}
+
 // Clone creates a deep copy of the shape.
 //
 // Use this method to make a deep copy of the shape while preserving the relationships between shapes.
@@ -392,9 +400,10 @@ type ShapeInheritor interface {
 	inherit(source Shape) (Shape, error)
 }
 
-// ShapeJSONSchema is the interface that provide clone implementation for a RAML shape.
+// ShapeCloner is the interface that provide clone implementation for a RAML shape.
 type ShapeCloner interface {
 	clone(base *BaseShape, clonedMap map[int64]*BaseShape) Shape
+	cloneShallow(base *BaseShape) Shape
 }
 
 type ShapeChecker interface {