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src: fix compiler warnings in node_perf.cc
Currently, there are a few compiler warnings generated from node_perf.cc regarding unused return values: ../src/node_perf.cc:58:3: warning: ignoring return value of function declared with warn_unused_result attribute [-Wunused-result] env->performance_entry_callback()->Call(context, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~ ../src/node_perf.cc:293:5: warning: ignoring return value of function declared with warn_unused_result attribute [-Wunused-result] obj->Set(context, idx, args[idx]); ^~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~ ../src/node_perf.cc:373:3: warning: ignoring return value of function declared with warn_unused_result attribute [-Wunused-result] target->DefineOwnProperty(context, ^~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~ ../src/node_perf.cc:378:3: warning: ignoring return value of function declared with warn_unused_result attribute [-Wunused-result] target->DefineOwnProperty(context, ^~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~ This commit add checks/casts to avoid the warnings. PR-URL: #15112 Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>