DPDK::ConvertLookahead::Collect Class Reference

Inheritance diagram for DPDK::ConvertLookahead::Collect:

Public Member Functions
	Collect (P4::ReferenceMap *refMap, P4::TypeMap *typeMap, ReplacementMap *repl)
void	postorder (const IR::AssignmentStatement *statement) override

Member Function Documentation

postorder()

void DPDK::ConvertLookahead::Collect::postorder ( const IR::AssignmentStatement * statement )

override

Store new header in following format in the map:

header lookahead_tmp_hdr { T f; }

Store following declaration of new local variable which is of new header type in the map:

lookahead_tmp_hdr lookahead_tmp;

Replace current statement with 2 new statements:

• assignment statement with lookahead method using newly created header definiton
• assignment statement which assigns the field from newly created header into the original variable

lookahead_tmp = pkt.lookahead<lookahead_tmp_hdr>(); var_name = lookahead_tmp.f;