Represents a single scope during execution of the graph.
The lifetime of each instance is bound to scope execution.
When the evaluation enters a new scope (e.g. calling a lambda) a new Scope instance is created and pushed
to _scopeStack, then is starts receiving add method calls.
When the evaluation leaves the scope, the top is popped off the stack.
Represents a single scope during execution of the graph. The lifetime of each instance is bound to scope execution. When the evaluation enters a new scope (e.g. calling a lambda) a new Scope instance is created and pushed to _scopeStack, then is starts receiving
add
method calls. When the evaluation leaves the scope, the top is popped off the stack.