ShareManagerLibrary

This library helps pack multiple boolean flags and lockup durations into a compact uint256 bitmask. It enables efficient storage and quick access to share manager configuration in vault systems.

Designed for the ShareManager component to control:

• Whether minting, burning, or transfers are paused

• Whether deposit/transfer whitelists are active

• How long global or user-specific lockups last

All data is packed into a single uint256 using bit-level encoding for optimal storage and gas efficiency.

Bitmask Layout

Bit Range	Purpose
[0]	hasMintPause (bool)
[1]	hasBurnPause (bool)
[2]	hasTransferPause (bool)
[3]	hasWhitelist (bool)
[4]	hasTransferWhitelist (bool)
[5..36]	globalLockup (uint32)
[37..68]	targetedLockup (uint32)

Functions

hasMintPause(uint256 mask) → bool

Returns true if minting is paused (bit 0 is set).

hasBurnPause(uint256 mask) → bool

Returns true if burning is paused (bit 1 is set).

hasTransferPause(uint256 mask) → bool

Returns true if transfers are paused (bit 2 is set).

hasWhitelist(uint256 mask) → bool

Returns true if a deposit whitelist is enabled (bit 3 is set).

hasTransferWhitelist(uint256 mask) → bool

Returns true if a transfer whitelist is enabled (bit 4 is set).

getGlobalLockup(uint256 mask) → uint32

Returns the global lockup duration in seconds (timestamp), encoded in bits [5..36].

getTargetedLockup(uint256 mask) → uint32

Returns the targeted lockup duration in seconds, encoded in bits [37..68].

createMask(IShareManager.Flags calldata f) → uint256

Encodes the values in a Flags struct into a single bitmask:

struct Flags {
    bool hasMintPause;
    bool hasBurnPause;
    bool hasTransferPause;
    bool hasWhitelist;
    bool hasTransferWhitelist;
    uint32 globalLockup;
    uint32 targetedLockup;
}