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feat(supply-logic): use ray_mul_down for withdraw balance calculation #70

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feat(supply-logic): use ray_mul_down for withdraw balance calculation #70

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5 changes: 4 additions & 1 deletion aave-core/sources/aave-logic/supply_logic.move
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Original file line number Diff line number Diff line change
Expand Up @@ -196,8 +196,11 @@ module aave_pool::supply_logic {
// update pool state
pool_logic::update_state(reserve_data, &mut reserve_cache);

// Note: Use ray_mul_down for conservative withdrawal balance calculation
// Ensures user cannot withdraw more than their actual balance
// Consistent with a_token_factory::balance_of behavior
let user_balance =
wad_ray_math::ray_mul(
wad_ray_math::ray_mul_down(
a_token_factory::scaled_balance_of(account_address, a_token_address),
pool_logic::get_next_liquidity_index(&reserve_cache)
);
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