Implement "Set Max Supply" ACTION

[DenisCarriere]

Purpose

Create setmaxsupply ACTION where the token issuer can set the maximum supply of the token.

Feedback provided by

• @DenisCarriere
• @nsjames
• Tim Weston / Rob

setmaxupply ACTION

/**
 * Set the maximum supply of the token.
 *
 * @param issuer - the issuer account setting the maximum supply.
 * @param maximum_supply - the maximum supply of the token.
 */
[[eosio::action]]
void setmaxsupply( const name& issuer, const asset& maximum_supply );

Preconditions

• require_auth(issuer)
• maximum_supply must match the symbol of the token.
• maximum_supply must be greater than the current supply.

References

• eosio.token::create
• eosio.token::stat

Note: changes should be pushed to Antelope Reference contracts https://github.com/AntelopeIO/reference-contracts

[DenisCarriere]

Implemented via: AntelopeIO/reference-contracts@a451ca4