《路直路弯》与确定性路径：直线作为智能合约的执行

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";

contract StraightPath is Ownable {
    struct Path {
        uint256 id;
        address creator;
        bytes32 startCondition;
        bytes32[] steps;
        bytes32 endState;
        uint256 createdAt;
        bool isExecuted;
        bool isCompleted;
    }
    
    struct Step {
        uint256 stepId;
        uint256 pathId;
        bytes32 condition;
        bytes32 action;
        uint256 executionOrder;
        bool isExecuted;
        uint256 executionTime;
    }
    
    mapping(uint256 => Path) public paths;
    mapping(uint256 => Step[]) public pathSteps;
    
    uint256 public pathCount;
    uint256 public stepCount;
    
    event PathCreated(uint256 indexed id, address indexed creator);
    event StepExecuted(uint256 indexed pathId, uint256 indexed stepId);
    event PathCompleted(uint256 indexed pathId);
    
    function createPath(
        bytes32 _startCondition,
        bytes32[] memory _steps,
        bytes32 _endState
    ) external returns (uint256) {
        pathCount++;
        paths[pathCount] = Path({
            id: pathCount,
            creator: msg.sender,
            startCondition: _startCondition,
            steps: _steps,
            endState: _endState,
            createdAt: block.timestamp,
            isExecuted: false,
            isCompleted: false
        });
        
        for (uint256 i = 0; i < _steps.length; i++) {
            stepCount++;
            pathSteps[pathCount].push(Step({
                stepId: stepCount,
                pathId: pathCount,
                condition: _steps[i],
                action: _steps[i],
                executionOrder: i + 1,
                isExecuted: false,
                executionTime: 0
            }));
        }
        
        emit PathCreated(pathCount, msg.sender);
        return pathCount;
    }
    
    function executePath(uint256 _pathId) external {
        Path storage path = paths[_pathId];
        require(!path.isExecuted, "Already executed");
        require(!path.isCompleted, "Already completed");
        
        path.isExecuted = true;
        
        Step[] storage steps = pathSteps[_pathId];
        for (uint256 i = 0; i < steps.length; i++) {
            steps[i].isExecuted = true;
            steps[i].executionTime = block.timestamp;
            emit StepExecuted(_pathId, steps[i].stepId);
        }
        
        path.isCompleted = true;
        emit PathCompleted(_pathId);
    }
    
    function getPathStatus(uint256 _pathId)
        external view returns (bool executed, bool completed, uint256 stepCount_)
    {
        Path storage path = paths[_pathId];
        return (path.isExecuted, path.isCompleted, pathSteps[_pathId].length);
    }
}

import numpy as np
import pandas as pd
from typing import Dict, List
import matplotlib.pyplot as plt

class PathAnalyzer:
    def __init__(self):
        self.paths = []
        
    def generate_synthetic_data(self, n: int = 50):
        np.random.seed(42)
        
        for i in range(n):
            path = {
                'id': i + 1,
                'steps': np.random.randint(2, 10),
                'execution_time': np.random.uniform(1, 60),
                'gas_cost': np.random.uniform(0.001, 0.1),
                'success_rate': np.random.uniform(0.8, 1.0),
                'complexity': np.random.uniform(1, 10)
            }
            self.paths.append(path)
    
    def analyze_paths(self) -> Dict:
        df = pd.DataFrame(self.paths)
        return {
            'total_paths': len(self.paths),
            'avg_steps': df['steps'].mean(),
            'avg_time': df['execution_time'].mean(),
            'avg_gas': df['gas_cost'].mean(),
            'avg_success': df['success_rate'].mean()
        }
    
    def generate_report(self) -> str:
        eff = self.analyze_paths()
        report = f"""
=== 确定性路径分析 ===

总路径数: {eff['total_paths']}
平均步数: {eff['avg_steps']:.1f}
平均执行时间: {eff['avg_time']:.2f} 秒
平均Gas: {eff['avg_gas']:.4f} ETH
平均成功率: {eff['avg_success']:.1%}
"""
        return report


if __name__ == "__main__":
    analyzer = PathAnalyzer()
    analyzer.generate_synthetic_data(50)
    report = analyzer.generate_report()
    print(report)

class StraightPathExecutor {
    constructor(providerUrl, contractAddress) {
        this.web3 = new Web3(providerUrl);
        this.contract = new this.web3.eth.Contract([], contractAddress);
    }
    
    async createPath(startCondition, steps, endState) {
        return await this.contract.methods
            .createPath(startCondition, steps, endState)
            .send({ from: this.userAccount });
    }
    
    async executePath(pathId) {
        return await this.contract.methods
            .executePath(pathId)
            .send({ from: this.userAccount });
    }
    
    async getPathStatus(pathId) {
        return await this.contract.methods.getPathStatus(pathId).call();
    }
}

const executor = new StraightPathExecutor('https://mainnet.infura.io/v3/YOUR_ID', '0x...');