BlockCached

BlockCached

A execute.js internal representation of a block to reduce the time spent in execute as the same blocks are called the most.

With the help of the Blocks class create a mutable copy of block information. The members of BlockCached derived values of block information that does not need to be reevaluated until a change in Blocks. Since Blocks handles where the cache instance is stored, it drops all cache versions of a block when any change happens to it. This way we can quickly execute blocks and keep perform the right action according to the current block information in the editor.

Constructor

new BlockCached(blockContainer, cached)

Parameters:
Name Type Description
blockContainer Blocks

the related Blocks instance
cached object

default set of cached values

Members

_argValues :object

An arguments object for block implementations. All executions of this specific block will use this objecct.

Type:
  • object

(nullable) _blockFunction :function

The block opcode's implementation function.

Type:
  • function

_definedBlockFunction :boolean

Is the block function defined for this opcode?

Type:
  • boolean

_fields :object

A copy of the block's fields that may be modified.

Type:
  • object

_inputs :object

A copy of the block's inputs that may be modified.

Type:
  • object

_isHat :boolean

Is the opcode a hat (event responder) block.

Type:
  • boolean

_isShadowBlock :boolean

Is this block a block with no function but a static value to return.

Type:
  • boolean

_ops :Array.<BlockCached>

A sequence of non-shadow operations that can must be performed. This list recreates the order this block and its children are executed. Since the order is always the same we can safely store that order and iterate over the operations instead of dynamically walking the tree every time.

Type:

_parentKey :string

The inputs key the parent refers to this BlockCached by.

Type:
  • string

_parentValues :object

The target object where the parent wants the resulting value stored with _parentKey as the key.

Type:
  • object

(nullable) _profiler :Profiler

The profiler the block is configured with.

Type:

(nullable) _profilerFrame :ProfilerFrame

Profiler information frame.

Type:

_shadowOps :Array.<BlockCached>

A sequence of shadow value operations that can be performed in any order and are easier to perform given that they are static.

Type:

(nullable) _shadowValue :any

The static value of this block if it is a shadow block.

Type:
  • any

fields :object

Original block object containing argument values for static fields.

Type:
  • object

id :string

Block id in its parent set of blocks.

Type:
  • string

inputs :object

Original block object containing argument values for executable inputs.

Type:
  • object

(nullable) mutation :object

Procedure mutation.

Type:
  • object

opcode :string

Block operation code for this block.

Type:
  • string