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ERC721 extension for efficient batch minting (#3311)

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Co-authored-by: Francisco <frangio.1@gmail.com>
This commit is contained in:
Hadrien Croubois
2022-09-05 23:09:30 +02:00
committed by GitHub
parent 005a35b02a
commit 171fa40bc8
17 changed files with 845 additions and 78 deletions
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59
scripts/generate/templates/Checkpoints.js
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@ -32,14 +32,6 @@ struct ${opts.checkpointTypeName} {
/* eslint-disable max-len */
const operations = opts => `\
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(${opts.historyTypeName} storage self) internal view returns (${opts.valueTypeName}) {
uint256 pos = self.${opts.checkpointFieldName}.length;
return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName};
}
/**
* @dev Pushes a (\`key\`, \`value\`) pair into a ${opts.historyTypeName} so that it is stored as the checkpoint.
*
@ -73,14 +65,6 @@ function upperLookup(${opts.historyTypeName} storage self, ${opts.keyTypeName} k
`;
const legacyOperations = opts => `\
/**
* @dev Returns the value in the latest checkpoint, or zero if there are no checkpoints.
*/
function latest(${opts.historyTypeName} storage self) internal view returns (uint256) {
uint256 pos = self.${opts.checkpointFieldName}.length;
return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName};
}
/**
* @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one
* before it is returned, or zero otherwise.
@ -147,7 +131,44 @@ function push(
}
`;
const helpers = opts => `\
const common = opts => `\
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(${opts.historyTypeName} storage self) internal view returns (${opts.valueTypeName}) {
uint256 pos = self.${opts.checkpointFieldName}.length;
return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName};
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(${opts.historyTypeName} storage self)
internal
view
returns (
bool exists,
${opts.keyTypeName} ${opts.keyFieldName},
${opts.valueTypeName} ${opts.valueFieldName}
)
{
uint256 pos = self.${opts.checkpointFieldName}.length;
if (pos == 0) {
return (false, 0, 0);
} else {
${opts.checkpointTypeName} memory ckpt = _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1);
return (true, ckpt.${opts.keyFieldName}, ckpt.${opts.valueFieldName});
}
}
/**
* @dev Returns the number of checkpoint.
*/
function length(${opts.historyTypeName} storage self) internal view returns (uint256) {
return self.${opts.checkpointFieldName}.length;
}
/**
* @dev Pushes a (\`key\`, \`value\`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,
* or by updating the last one.
@ -266,12 +287,12 @@ module.exports = format(
// Legacy types & functions
types(LEGACY_OPTS),
legacyOperations(LEGACY_OPTS),
helpers(LEGACY_OPTS),
common(LEGACY_OPTS),
// New flavors
...OPTS.flatMap(opts => [
types(opts),
operations(opts),
helpers(opts),
common(opts),
]),
],
'}',