@usecannon/router/dist/templates/router.d.ts

Fork of Synthetix Router Proxy Architecture Manager, including only contract generation logic.

export declare const routerTemplate = "//SPDX-License-Identifier: Unlicense\npragma solidity ^0.8.0;\n\n// --------------------------------------------------------------------------------\n// --------------------------------------------------------------------------------\n// GENERATED CODE - do not edit manually!!\n// This code was generated by the Synthetix router project and deployed with Cannon.\n// Learn more: https://usecannon.com/learn/guides/router\n// --------------------------------------------------------------------------------\n// --------------------------------------------------------------------------------\n\ncontract {{{moduleName}}} {\n    error UnknownSelector(bytes4 sel);\n\n{{#diamondCompat}}\n    address immutable private _ROUTER_ADDRESS;\n\n    constructor() {\n        _ROUTER_ADDRESS = address(this);\n{{{diamondConstructor}}}\n    }\n\n{{/diamondCompat}}\n    {{{modules}}}\n{{#receive}}{{{receive}}}{{/receive}}\n{{^receive}}{{/receive}}\n    fallback({{#diamondCompat}}bytes calldata cd{{/diamondCompat}}) external payable{{#diamondCompat}} returns (bytes memory){{/diamondCompat}} {\n        // Lookup table: Function selector => implementation contract\n        bytes4 sig4 = msg.sig;\n        address implementation;\n\n        assembly {\n            let sig32 := shr(224, sig4)\n\n            function findImplementation(sig) -> result {\n                {{{selectors}}}\n            }\n\n            implementation := findImplementation(sig32)\n        }\n\n        if (implementation == address(0)) {\n{{#diamondCompat}}\n            // It's possible this contract is being called through yet another proxy. Call the router in order to make sure we have right data.\n            if (address(this) != _ROUTER_ADDRESS) {\n                (bool success, bytes memory result) = _ROUTER_ADDRESS.call(cd);\n                if (success) {\n                    return result;\n                } else {\n                    revert UnknownSelector(sig4);\n                }\n            } else {\n                // Check for diamond compat call\n                if (sig4 == 0x7a0ed627) {\n                    return abi.encode(_facets());\n                }\n                if (sig4 == 0xadfca15e) {\n                    (address facet) = abi.decode(cd[4:], (address));\n                    return abi.encode(_facetFunctionSelectors(facet));\n                }\n                if (sig4 == 0x52ef6b2c) {\n                    return abi.encode(_facetAddresses());\n                }\n                if (sig4 == 0xcdffacc6) {\n                    (bytes4 sig) = abi.decode(cd[4:], (bytes4));\n                    return abi.encode(_facetAddress(sig));\n                }\n                if (sig4 == 0x8cce96cb) {\n                    return abi.encode(_emitDiamondCutEvent());\n                }\n            }\n{{/diamondCompat}}\n            revert UnknownSelector(sig4);\n        }\n\n        // Delegatecall to the implementation contract\n        assembly {\n            calldatacopy(0, 0, calldatasize())\n\n            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)\n            returndatacopy(0, 0, returndatasize())\n\n            switch result\n            case 0 {\n                revert(0, returndatasize())\n            }\n            default {\n                return(0, returndatasize())\n            }\n        }\n    }\n{{#diamondCompat}}\n{{{diamondCompat}}}\n{{/diamondCompat}}\n}\n";
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