@ethereumjs/evm/dist/cjs/precompiles/02-sha256.js

JavaScript Ethereum Virtual Machine (EVM) implementation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.precompile02 = precompile02;
const util_1 = require("@ethereumjs/util");
const sha2_js_1 = require("@noble/hashes/sha2.js");
const evm_ts_1 = require("../evm.js");
const index_ts_1 = require("./index.js");
const util_ts_1 = require("./util.js");
function precompile02(opts) {
    const pName = (0, index_ts_1.getPrecompileName)('02');
    const data = opts.data;
    const sha256Function = opts.common.customCrypto.sha256 ?? sha2_js_1.sha256;
    let gasUsed = opts.common.param('sha256Gas');
    gasUsed += opts.common.param('sha256WordGas') * BigInt(Math.ceil(data.length / 32));
    if (!(0, util_ts_1.gasLimitCheck)(opts, gasUsed, pName)) {
        return (0, evm_ts_1.OOGResult)(opts.gasLimit);
    }
    const hash = sha256Function(data);
    if (opts._debug !== undefined) {
        opts._debug(`${pName} return hash=${(0, util_1.bytesToHex)(hash)}`);
    }
    return {
        executionGasUsed: gasUsed,
        returnValue: hash,
    };
}
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