com.wsscode.pathom3.format.shape-descriptor — com.wsscode/pathom3 2021.10.19-alpha

Shape descriptor is a format to describe data. This format optimizes for fast detection of value present given a shape and a value path.

This namespace contains functions to operate on maps in the shape descriptor format.

ast->shape-descriptor clj/s

(ast->shape-descriptor ast)

Convert EQL AST to shape descriptor format.

data->shape-descriptor clj/s

(data->shape-descriptor data)

Helper function to transform a map into an shape descriptor.

Edges of shape descriptor are always an empty map. If a value of the map is a sequence. This will combine the keys present in all items on the final shape description.

WARN: this idea of merging is still under test, this may change in the future.

data->shape-descriptor-shallow clj/s

(data->shape-descriptor-shallow data)

Like data->shape-descriptor, but only at the root keys of the data.

difference clj/s

(difference s1 s2)

Like set/difference, for shapes.

intersection clj/s

(intersection s1 s2)

Like set/intersection, for shapes.

merge-shapes clj/s

(merge-shapes a)

(merge-shapes a b)

Deep merge of shapes, it takes in account that values are always maps.

missing clj/s

(missing available required)

(missing available required data)

Given some available and required shapes, returns which items are missing from available in the required. Returns nil when nothing is missing.

query->shape-descriptor clj/s

(query->shape-descriptor output)

Convert pathom output format into shape descriptor format.

relax-empty-collections clj/s

(relax-empty-collections required data)

This helper will remove nested requirements when data is an empty collection. This allows for nested inputs with empty collections to still be valid in shape.

select-shape clj/s

(select-shape data shape)

Select the parts of data covered by shape. This is similar to select-keys, but for nested shapes.

select-shape-filtering clj/s

(select-shape-filtering data shape)

(select-shape-filtering data shape required-shape)

Like select-shape, but in case of collections, if some item doesn't have all the required keys, its removed from the collection.

shape-descriptor->ast clj/s

(shape-descriptor->ast shape)

Convert pathom output format into shape descriptor format.

shape-descriptor->ast-children clj/s

(shape-descriptor->ast-children shape)

Convert pathom output format into shape descriptor format.

shape-descriptor->query clj/s

(shape-descriptor->query shape)

Convert pathom output format into shape descriptor format.

shape-params clj/s

(shape-params shape-value params)