Cal. Civ. Code § 3358 : CALIFORNIA CIVIL CODE — GENERAL PROVISIONS — RELIEF — COMPENSATORY RELIEF — MEASURE OF DAMAGES — GENERAL PROVISIONS — Recovery of greater amount for breach of obligation than person could have gained from full performance
Except as expressly provided by statute, no person can recover a greater amount in damages for the breach of an obligation, than he could have gained by the full performance thereof on both sides.