viem
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.hashBytecode = hashBytecode;
const pad_js_1 = require("../../utils/data/pad.js");
const toBytes_js_1 = require("../../utils/encoding/toBytes.js");
const sha256_js_1 = require("../../utils/hash/sha256.js");
const number_js_1 = require("../constants/number.js");
const bytecode_js_1 = require("../errors/bytecode.js");
function hashBytecode(bytecode) {
const bytecodeBytes = (0, toBytes_js_1.toBytes)(bytecode);
if (bytecodeBytes.length % 32 !== 0)
throw new bytecode_js_1.BytecodeLengthMustBeDivisibleBy32Error({
givenLength: bytecodeBytes.length,
});
if (bytecodeBytes.length > number_js_1.maxBytecodeSize)
throw new bytecode_js_1.BytecodeLengthExceedsMaxSizeError({
givenLength: bytecodeBytes.length,
maxBytecodeSize: number_js_1.maxBytecodeSize,
});
const hashStr = (0, sha256_js_1.sha256)(bytecodeBytes);
const hash = (0, toBytes_js_1.toBytes)(hashStr);
const bytecodeLengthInWords = bytecodeBytes.length / 32;
if (bytecodeLengthInWords % 2 === 0) {
throw new bytecode_js_1.BytecodeLengthInWordsMustBeOddError({
givenLengthInWords: bytecodeLengthInWords,
});
}
const bytecodeLength = (0, toBytes_js_1.toBytes)(bytecodeLengthInWords);
const bytecodeLengthPadded = (0, pad_js_1.pad)(bytecodeLength, { size: 2 });
const codeHashVersion = new Uint8Array([1, 0]);
hash.set(codeHashVersion, 0);
hash.set(bytecodeLengthPadded, 2);
return hash;
}
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