"WARNING - Suspicious code. The result of the 'getprop' operator is not being used."

I'm seeing this for two lines in my JavaScript code when I use the closure piler. They are typedefs in among other typedefs that don't report issues. What should I be looking for?

EDIT

Affected code:

/**
 * @typedef {{playerId: number, playerName: string, baseScores: Array.<number>, bonusScores: Array.<number>,
 *          teamScoreAdjustments: Array.<number>}}
 */
wias.GameTableTeamMember;

/**
 * @typedef {{id: number, teamMembers: Array<wias.GameTableTeamMember>, teamName: string}}
 */
wias.GameTableTeam;

/**
 * @typedef {{id: number, availableRound: boolean, bonusScoring: boolean, plete: boolean, gameLength: number,
 *          gameType: string, lastPlayed: string, numberOfRounds: number, teams: Array.<wias.GameTableTeam>, winners:
 *          Array.<string>}}
 */
wias.GameTable;

Warning:

wias.js:77: WARNING - Suspicious code. The result of the 'getprop' operator is not being used.
wias.GameTableTeam;
^

Why a warning there and not elsewhere?

"WARNING - Suspicious code. The result of the 'getprop' operator is not being used."

I'm seeing this for two lines in my JavaScript code when I use the closure piler. They are typedefs in among other typedefs that don't report issues. What should I be looking for?

EDIT

Affected code:

/**
 * @typedef {{playerId: number, playerName: string, baseScores: Array.<number>, bonusScores: Array.<number>,
 *          teamScoreAdjustments: Array.<number>}}
 */
wias.GameTableTeamMember;

/**
 * @typedef {{id: number, teamMembers: Array<wias.GameTableTeamMember>, teamName: string}}
 */
wias.GameTableTeam;

/**
 * @typedef {{id: number, availableRound: boolean, bonusScoring: boolean, plete: boolean, gameLength: number,
 *          gameType: string, lastPlayed: string, numberOfRounds: number, teams: Array.<wias.GameTableTeam>, winners:
 *          Array.<string>}}
 */
wias.GameTable;

Warning:

wias.js:77: WARNING - Suspicious code. The result of the 'getprop' operator is not being used.
wias.GameTableTeam;
^

Why a warning there and not elsewhere?

• javascript
• google-closure-piler

• I'm not sure what the warning means, but I'm curious to see the actual code it is talking about... – nnnnnn Commented Feb 3, 2012 at 6:32

1 Answer 1

It means that you have code which does nothing.

Typedef's (or record types) are more tricky for the piler to point to the exact spot where the issue is, but somewhere you are getting a value which is not being used.

some reading about the type system and what works best with the piler https://docs.google./document/d/1Uq_vNyPZjlRvYZJclX6N37Fjsiah4XNciEPSBfFiREs/edit

and to recreate the warning simply

if (true) {
   //have nothing in here
}