Class BasicBlock

A basic block in the C/C++ control-flow graph.

A basic block is a simple sequence of control-flow nodes, connected to each other and nothing else:

   A - B - C - D  ABCD is a basic block

Any incoming or outgoing edges break the block into two:

   A - B > C - D  AB is a basic block and CD is a basic block (C has two incoming edges)


   A - B < C - D  AB is a basic block and CD is a basic block (B has two outgoing edges)

Import path


                                import cpp

Direct supertypes

ControlFlowNodeBase

Indirect supertypes

Known direct subtypes

Predicates

contains	Holds if this basic block contains `node`.
getAFalseSuccessor	Gets a `BasicBlock` such that the control-flow edge `(this, result)` may be taken when the outgoing edge of this basic block is an expression that is false.
getANode	Gets a `ControlFlowNode` in this basic block.
getAPredecessor	Gets a `BasicBlock` that is a direct predecessor of this basic block.
getASuccessor	Gets a `BasicBlock` that is a direct successor of this basic block.
getATrueSuccessor	Gets a `BasicBlock` such that the control-flow edge `(this, result)` may be taken when the outgoing edge of this basic block is an expression that is true.
getEnclosingFunction	Gets the function containing this basic block.
getEnd	Gets the final `ControlFlowNode` of this basic block.
getNode	Gets the `ControlFlowNode` at position `pos` in this basic block.
getStart	Gets the first `ControlFlowNode` of this basic block.
hasLocationInfo	Holds if this element is at the specified location. The location spans column `startcolumn` of line `startline` to column `endcolumn` of line `endline` in file `filepath`. For more information, see Locations.
inLoop	Holds if this basic block is in a loop of the control-flow graph. This includes loops created by `goto` statements. This predicate may not hold even if this basic block is syntactically inside a `while` loop if the necessary back edges are unreachable.
isReachable	Holds if control flow may reach this basic block from a function entry point or any handler of a reachable `try` statement.
isUnreachable	Means `not isReachable()`.
length	Gets the number of `ControlFlowNode`s in this basic block.

Inherited predicates

getAPrimaryQlClass	Gets the name of a primary CodeQL class to which this element belongs.	from ElementBase
getPrimaryQlClasses	Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs.	from ElementBase
toString	Gets a textual representation of this element.	from ElementBase

Charpred

BasicBlock