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feat: expose ERC20 token originalAmount field

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This commit is contained in:
Michael Vines
2018-10-18 08:27:03 -07:00
parent b66ca1a84d
commit a9fc62d891
3 changed files with 38 additions and 8 deletions
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15
web3.js/src/token-program.js
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@ -111,6 +111,12 @@ type TokenAccountInfo = {|
* an allowance of tokens that may be transferred from the source account
*/
source: null | PublicKey,
/**
* Original amount of tokens this delegate account was authorized to spend
* If `source` is null, originalAmount is zero
*/
originalAmount: TokenAmount,
|};
/**
@ -122,6 +128,7 @@ const TokenAccountInfoLayout = BufferLayout.struct([
Layout.uint64('amount'),
BufferLayout.u8('sourceOption'),
Layout.publicKey('source'),
Layout.uint64('originalAmount'),
]);
@ -320,7 +327,13 @@ export class Token {
tokenAccountInfo.token = new PublicKey(tokenAccountInfo.token);
tokenAccountInfo.owner = new PublicKey(tokenAccountInfo.owner);
tokenAccountInfo.amount = TokenAmount.fromBuffer(tokenAccountInfo.amount);
tokenAccountInfo.source = tokenAccountInfo.sourceOption === 0 ? null : new PublicKey(tokenAccountInfo.source);
if (tokenAccountInfo.sourceOption === 0) {
tokenAccountInfo.source = null;
tokenAccountInfo.originalAmount = new TokenAmount();
} else {
tokenAccountInfo.source = new PublicKey(tokenAccountInfo.source);
tokenAccountInfo.originalAmount = TokenAmount.fromBuffer(tokenAccountInfo.originalAmount);
}
if (!tokenAccountInfo.token.equals(this.token)) {
throw new Error(