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import { ContractSchema, ContractStorageField } from "../contractSchema";
import { Generator, ind } from "../generator";
export class StaticRefFuncGen implements Generator {
gen(schema: ContractSchema): string {
if (!schema.hasLiteRef()) {
return "";
}
// TODO check all literef fields to find the static ones
if (schema.liteRefArrayLength(0) === 0) {
return "";
}
function generateAddReferenceFunction(entries: ContractStorageField[]) {
for (let entry of entries) {
if (entry.type == "literef") {
let addReferenceLines = [];
let slot = entry.slot;
let offset = entry.offset;
let indent = 0;
for (let i = 0; i < entry.arrayLength; i++) {
const shift = offset > 0 ? ` >> ${offset}` : "";
addReferenceLines.push(`if (uint64(slot${shift}) == 0) {\n` +
ind(indent*4, ` mdStorage[${slot}] = slot | uint256(liteRef)${shift !== "" ? ` << ${offset}` : ""};\n` +
` }`));
offset += entry.elementBits;
if (offset >= 256) {
offset = 64;
slot++;
indent = 1;
if (i < entry.arrayLength-2) {
addReferenceLines.push(`{\n` +
` slot = mdStorage[${slot}];\n` +
` if (uint64(slot) == 0) {\n` +
` mdStorage[${slot}] = slot | uint256(liteRef);\n` +
` }`);
i++;
}
}
}
let lines = addReferenceLines.join(" else ");
let retBlock = `` +
`function addReference(uint256 tokenId, uint64 liteRef) public override {\n` +
` if (!_checkTokenWriteAuth(tokenId)) {\n` +
` revert IPatchworkProtocol.NotAuthorized(msg.sender);\n` +
` }\n` +
` uint256[] storage mdStorage = _metadataStorage[tokenId];\n` +
` uint256 slot = mdStorage[${entry.slot}];\n` +
` ${lines} else {\n`;
if (indent == 0) {
retBlock += ` revert NoReferenceSlotsAvailable();\n`;
} else {
retBlock += ` revert NoReferenceSlotsAvailable();\n` +
` }\n`;
}
retBlock += `` +
` }\n` +
`}\n`;
return retBlock;
}
}
return "";
};
function generateAddReferenceBatchFunction(entries: FieldConfig[]) {
if (schema.hasLiteRef()) {
let out = `` +
`function addReferenceBatch(uint256 tokenId, uint64[] calldata liteRefs) public override {\n` +
` // This will overwrite all ref values starting at slot 0 idx 0\n` +
` if (!_checkTokenWriteAuth(tokenId)) {\n` +
` revert IPatchworkProtocol.NotAuthorized(msg.sender);\n` +
` }\n` +
` if (liteRefs.length > ${schema.liteRefArrayLength(0)}) {\n` +
` revert TooManyReferences();\n` +
` }\n`;
if (schema.liteRefArrayLength(0) == 1) {
out += ` addReference(tokenId, liteRefs[0]);\n`;
} else {
out += ` uint256[] storage mdStorage = _metadataStorage[tokenId];\n`;
out += ` for (uint256 slotIdx = ${startSlot(0)}; slotIdx < ${endSlot(0)}; slotIdx++) {\n` +
` if (mdStorage[slotIdx] != 0) {\n` +
` revert AlreadyHaveReferences();\n` +
` }\n` +
` uint256 slot = 0;\n` +
` for (uint256 refPos = 0; refPos < 4; refPos++) {\n` +
` uint256 refIdx = slotIdx * 4 + refPos;\n` +
` if (refIdx >= liteRefs.length) {\n` +
` break;\n` +
` }\n` +
` slot = slot | uint256(liteRefs[refIdx]) << (64 * refPos);\n` +
` }\n` +
` if (slot != 0) {\n` +
` mdStorage[slotIdx] = slot;\n` +
` }\n` +
` }\n`;
}
out += `}\n`;
return out;
}
return "";
}
const addReferenceFunction = generateAddReferenceFunction(schema.storage.fields);
`function addReference(uint256 tokenId, uint64 liteRef) external {\n` +
`}\n`
const addReferenceDirectFunction = schema.hasLiteRef() ?
`function addReference(uint256 tokenId, uint64 liteRef, uint256 targetMetadataId) external {\n` +
` if (targetMetadataId != 0) {\n` +
` revert UnsupportedMetadataId();\n` +
` }\n` +
` addReference(tokenId, liteRef);\n` +
`}\n` : "";
const addReferenceBatchFunction = schema.hasLiteRef() ? generateAddReferenceBatchFunction(schema.storage.fields) : "";
const addReferenceBatchDirectFunction =
`function addReferenceBatch(uint256 tokenId, uint64[] calldata liteRefs, uint256 targetMetadataId) external {\n` +
` if (targetMetadataId != 0) {\n` +
` revert UnsupportedMetadataId();\n` +
` }\n` +
` addReferenceBatch(tokenId, liteRefs);\n` +
`}\n`;
function generateRemoveReferenceFunction() {
let out = ``;
if (schema.hasLiteRef()) {
out += `` +
`function removeReference(uint256 tokenId, uint64 liteRef) public {\n` +
` if (!_checkTokenWriteAuth(tokenId)) {\n` +
` revert IPatchworkProtocol.NotAuthorized(msg.sender);\n` +
` }\n` +
` uint256[] storage mdStorage = _metadataStorage[tokenId];\n`;
if (schema.liteRefArrayLength(0) == 1) {
let slot = schema.liteRefField(0).slot;
let shift = ``;
let revShift = ``;
if (schema.liteRefField(0).offset > 0) {
shift = ` >> ${schema.liteRefField(0).offset}`;
revShift = ` << ${schema.liteRefField(0).offset}`;
}
out += `` +
` if (uint64(mdStorage[${slot}]${shift}) == liteRef) {\n` +
` uint256 mask = (1 << 64) - 1;\n` +
` uint256 cleared = uint256(mdStorage[${slot}]) & ~(mask${revShift});\n` +
` mdStorage[${slot}] = cleared;\n` +
` return;\n` +
` }\n`;
} else {
out += `` +
` uint256 nextSlotNumber = ${schema.liteRefSlotNumber(0)};\n` +
` uint256 curSlotNumber = ${schema.liteRefSlotNumber(0)};\n` +
` uint256 slot;\n` +
` for (uint256 i = 0; i < ${schema.liteRefArrayLength(0)}; i++) {\n` +
` uint256 subSlotNumber = i % 4;\n` +
` if (subSlotNumber == 0) {\n` +
` slot = mdStorage[nextSlotNumber];\n` +
` nextSlotNumber++;\n` +
` curSlotNumber = nextSlotNumber - 1;\n` +
` }\n` +
` uint256 shift = subSlotNumber * 64;\n` +
` if (uint64(slot >> shift) == liteRef) {\n` +
` if (subSlotNumber == 0) {\n` +
` mdStorage[curSlotNumber] = slot & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000000000000000;\n` +
` } else if (subSlotNumber == 1) {\n` +
` mdStorage[curSlotNumber] = slot & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000000000000000FFFFFFFFFFFFFFFF;\n` +
` } else if (subSlotNumber == 2) {\n` +
` mdStorage[curSlotNumber] = slot & 0xFFFFFFFFFFFFFFFF0000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n` +
` } else {\n` +
` mdStorage[curSlotNumber] = slot & 0x0000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n` +
` }\n` +
` return;\n` +
` }\n` +
` }\n`;
}
out += ` revert NoReference();\n`;
out += `}\n`;
}
return out;
}
const removeReferenceFunction = generateRemoveReferenceFunction();
const removeReferenceDirectFunction = schema.hasLiteRef() ? `` +
`function removeReference(uint256 tokenId, uint64 liteRef, uint256 targetMetadataId) external {\n` +
` if (targetMetadataId != 0) {\n` +
` revert UnsupportedMetadataId();\n` +
` }\n` +
` removeReference(tokenId, liteRef);\n` +
`}\n` : "";
function generateLoadReferenceAndTokenIdFunction() {
const _startSlot = startSlot(0) == 0 ? "idx / 4" : startSlot(0) + " + (idx / 4)";
if (schema.hasLiteRef()) {
return `` +
`function loadReferenceAddressAndTokenId(uint256 tokenId, uint256 idx) external view returns (address refAddr, uint256 refTokenId) {\n` +
` uint256[] storage slots = _metadataStorage[tokenId];\n` +
` uint256 slotNumber = ${_startSlot};\n` +
` uint256 shift = (idx % 4) * 64;\n` +
` uint64 attributeId = uint64(slots[slotNumber] >> shift);\n` +
` return getReferenceAddressAndTokenId(attributeId);\n` +
`}\n`;
} else E{
return "";
}
}
const loadReferenceAddressAndTokenIdFunction = generateLoadReferenceAndTokenIdFunction();
function startSlot(which: number) {
return schema.liteRefSlotNumber(which);
}
function endSlot(which: number) {
return startSlot(which) + Math.ceil(schema.liteRefArrayLength(0) / 4);
}
return ind(4, `\n` +
`${addReferenceFunction}\n` +
`${addReferenceDirectFunction}\n` +
`${addReferenceBatchFunction}\n` +
`${addReferenceBatchDirectFunction}\n` +
`${removeReferenceFunction}\n` +
`${removeReferenceDirectFunction}\n` +
`${loadReferenceAddressAndTokenIdFunction}\n`);
}
} |