Class Ssa::ExplicitDefinition

Gets an underlying assignable definition. The result is always unique, except for pathological out/ref assignments like M(out x, out x), where there may be more than one underlying definition.

Gets the syntax element associated with this SSA definition, if any. This is either an expression, for example x = 0, a parameter, or a callable. Phi nodes have no associated syntax element.

Gets the location of this SSA definition.

DEPRECATED.

DEPRECATED.

Gets a textual representation of this SSA definition.

Holds if this SSA definition defines v at index i in basic block bb. Phi nodes are considered to be at index -1, while normal variable writes are at the index of the control flow node they wrap.

Gets a read of the source variable underlying this SSA definition that can be reached from this SSA definition without passing through any other SSA definition or read. Example:

Gets a read of the source variable underlying this SSA definition at control flow node cfn that can be reached from this SSA definition without passing through any other SSA definition or read. Example:

Gets a last read of the source variable underlying this SSA definition. That is, a read that can reach the end of the enclosing callable, or another SSA definition for the source variable, without passing through any other read. Example:

Gets a last read of the source variable underlying this SSA definition at control flow node cfn. That is, a read that can reach the end of the enclosing callable, or another SSA definition for the source variable, without passing through any other read. Example:

Gets a read of the source variable underlying this SSA definition that can be reached from this SSA definition without passing through any other SSA definitions. Example:

Gets a read of the source variable underlying this SSA definition at control flow node cfn that can be reached from this SSA definition without passing through any other SSA definitions. Example:

Gets a definition that ultimately defines this SSA definition and is not itself a phi node. Example:

Gets the basic block to which this SSA definition belongs.

Gets the control flow node of this SSA definition, if any. Phi nodes are examples of SSA definitions without a control flow node, as they are modeled at index -1 in the relevant basic block.

Gets the callable to which this SSA definition belongs.

Gets the source variable underlying this SSA definition.

Holds if this SSA definition is live at the end of basic block bb. That is, this definition reaches the end of basic block bb, at which point it is still live, without crossing another SSA definition of the same source variable.

Holds if this SSA definition assigns to out/ref parameter p, and the parameter may remain unchanged throughout the rest of the enclosing callable.