Contract con_dc_lst001
Creator | af872ff0f3b00f4161418e9429e738cf8a228c686680233929782de94f46bd70 |
Creation Hash | f059501568e5810053d02ea1faf5f5aadcf5e595515b1c9e9c6a3fa4ec29e2dc |
Created On | 928 days ago - 10/20/2021, 9:09:02 PM UTC+0 |
Contract Code
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# LST001
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balances = Hash(default_value=0)
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# LST002
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metadata = Hash()
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@construct
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def seed():
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# LST002
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metadata['operator'] = ctx.caller
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# operator needs to be the clearinghouse contract
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metadata['owner'] = "con_lamden_link_bsc_v1"
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# LST002
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@export
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def change_metadata(key: str, value: Any):
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assert ctx.caller == metadata['operator'], 'Only operator can set metadata!'
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metadata[key] = value
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@export
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def mint(amount: float, to: str):
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owner = metadata['owner']
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assert ctx.caller == owner, f'Only owner can mint! Current owner is {owner}, Caller is {ctx.caller}'
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assert amount > 0, 'Cannot mint negative balances!'
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balances[to] += amount
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# LST001
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@export
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def transfer(amount: float, to: str):
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assert amount > 0, 'Cannot send negative balances!'
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assert balances[ctx.caller] >= amount, 'Not enough coins to send!'
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balances[ctx.caller] -= amount
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balances[to] += amount
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# LST001
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@export
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def approve(amount: float, to: str):
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assert amount > 0, 'Cannot send negative balances!'
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balances[ctx.caller, to] += amount
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# LST001
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@export
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def transfer_from(amount: float, to: str, main_account: str):
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assert amount > 0, 'Cannot send negative balances!'
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assert balances[main_account, ctx.caller] >= amount, 'Not enough coins approved to send! You have {} and are trying to spend {}'\
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.format(balances[main_account, ctx.caller], amount)
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assert balances[main_account] >= amount, 'Not enough coins to send!'
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balances[main_account, ctx.caller] -= amount
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balances[main_account] -= amount
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balances[to] += amount
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Byte Code
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