Module SummaryComponentStack

Provides predicates for constructing stacks of summary components.

Import path

import codeql.ruby.dataflow.FlowSummary

block	Gets a singleton stack representing a block argument.
receiver	Gets a singleton stack representing a receiver.
return	Gets a singleton stack representing the return value of a call.

argument	Gets a singleton stack for an argument at position `pos`.
push	Gets the stack obtained by pushing `head` onto `tail`.
singleton	Gets a singleton stack containing `c`.