Empowering Developers with a Robust, Production-Grade Framework for EpicChain Smart Contracts in Rust
The EpicChain Rust Smart Contract Framework is an advanced and comprehensive platform that equips developers to create secure, efficient, and standards-compliant smart contracts tailored for the EpicChain blockchain using Rust. This framework offers a full suite of development tools, extending from initial contract development to final deployment, integrating a highly optimized WebAssembly-to-XEF compiler and an extensive library of examples, designed to cater to all developer levels.
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Zero-Cost Abstractions: The framework utilizes Rust’s ownership system to deliver zero-cost abstractions. This ensures that developers can write high-level code without compromising performance. Rust’s innovative memory management system provides real-time safety without incurring runtime overhead, making it ideal for smart contracts where every instruction must be as efficient as possible.
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Compile-Time Safety: By leveraging Rust’s compile-time checks, the framework prevents common smart contract vulnerabilities, such as buffer overflows and unauthorized memory access. This compile-time enforcement adds a layer of security, enabling developers to catch and rectify errors during development, before they escalate into critical issues in a live environment.
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EpicPulse Optimization: The framework is meticulously crafted to optimize EpicPulse usage through efficient memory management techniques. This ensures minimal resource consumption and maximizes performance, a critical factor when executing complex operations in smart contract environments.
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Security and Validation: Security is at the core of the framework, with thorough validation patterns embedded throughout. This production-grade security ensures that the framework can be trusted for handling transactions involving substantial values, as security vulnerabilities are minimized from the onset.
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13 Detailed Example Contracts: The framework includes an expansive collection of examples, ranging from basic storage mechanisms to fully-fledged enterprise-level DeFi applications. Each example is carefully designed to highlight specific functionalities and use cases, enabling developers to gain hands-on experience with real-world contract scenarios.
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Progressive Complexity: The examples are structured to provide a learning path that progresses in complexity. This ensures developers can gradually build their skillset, starting from simple concepts and moving toward intricate contract structures and integrations.
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Real-World Application Patterns: The framework incorporates patterns and practices that have been proven effective in production environments. This real-world applicability ensures that the knowledge and skills acquired are directly transferable to live deployments.
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Best Practices and Standards: The framework's codebase is infused with industry best practices, ensuring that developers not only learn how to write functional contracts but also understand essential concepts like security, efficiency, and maintainability.
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Optimized Rust-to-WASM Compilation: At the heart of the framework is a sophisticated build pipeline that converts Rust code into WebAssembly. This process ensures that smart contracts are optimized for speed and size, enabling fast execution times and minimal storage costs on the blockchain.
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Efficient WASM-to-XEF Compiler: The WASM-to-XEF compiler seamlessly handles the conversion of WebAssembly modules into XEF files, which are tailored for EpicChain deployment. This step is crucial as it converts a universally compatible binary format into one that can be efficiently executed and interacted with on the EpicChain platform.
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Automatic Manifest Generation: The inclusion of automatic manifest generation with XEP standard detection streamlines the deployment process by ensuring compatibility and adherence to established blockchain standards. These manifests describe the contract's interface and provide essential metadata used by other tools and services.
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Comprehensive Tooling: The framework supports a modern development workflow with a wide array of tools that facilitate code formatting, linting, testing, and documentation. This tooling ensures that projects adhere to modern software development practices, fostering consistency and quality control across all aspects of the development process.
┌───────────────────────────────────────────────────────────────────┐
│ EpicChain Rust Framework │
├───────────────────────────────────────────────────────────────────┤
│ Rust Smart Contract → WebAssembly Module → XEF Format → EpicChain │
└───────────────────────────────────────────────────────────────────┘
The mirrored architecture demonstrates a streamlined and efficient path from Rust-based contract code, through WebAssembly compilation, to final deployment on the EpicChain via the XEF format. This structured approach optimizes each phase for maximum performance and contract integrity.
Key Components Include:
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epicchain-contract/: The core Rust library providing a rich set of APIs tailored for contract development on EpicChain.
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epicchain-contract-proc-macros/: This module includes procedural macros that simplify the development of complex smart contract logic, enhancing code readability and maintainability.
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epicchain-wasm/: The sophisticated WASM to XEF compiler, written in Go, specialized for EpicChain deployment needs.
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examples/: An extensive library of 13 exemplary contracts, each serving as a hands-on guide to different aspects of smart contract development on EpicChain.
| Component | Core Function | Language Used | Production Status |
|---|---|---|---|
| epicchain-contract | Provides fundamental framework capabilities, integrating directly with EpicChain APIs | Rust | Production-Ready |
| epicchain-contract-proc-macros | Offers procedural macros and attributes, simplifying complex contract logic development | Rust | Production-Ready |
| epicchain-wasm | Serves as the compiler converting WASM to EpicChain-specific XEF, including manifest generation | Go | Production-Ready |
| Examples Library | Comprises of 13 demonstrative contracts showcasing practical applications of framework capabilities | Rust | Production-Ready |
- Ensure that you have installed the Rust programming environment with WebAssembly support:
# Install Rust nightly version and add WebAssembly target
rustup install nightly
rustup default nightly
rustup target add wasm32-unknown-unknown- Install Go (version 1.23 or later) to support the EpicChain compiler:
# Visit Go's official site to download and install the latest compatible version- Clone the EpicChain Rust Framework repository to begin development:
# Clone the repository from your preferred platform
git clone <repository-url>
cd epicchain-contract-rsTransform the WebAssembly output to XEF format with the following steps:
cd epicchain-wasm
go build -o epicchain-wasm .
cd ..Embark on your smart contract development journey with the foundational “hello-world” example:
# Navigate to the hello-world example directory
cd examples/01-hello-world
# Build the project components
make all
# Examine the output, which includes:
# target/wasm32-unknown-unknown/release/hello_world.wasm
# build/hello_world.xef
# build/hello_world.manifest.jsonFor successful contract compilation, ensure RUSTFLAGS are properly set:
export RUSTFLAGS="-Ctarget-feature=+multivalue -Clink-arg=--initial-memory=2097152"| Example Name | Complexity | Description | Key Features |
|---|---|---|---|
| 01-hello-world | Beginner | Fundamental contract initiation | Simple storage, event management, basic authorization |
| 02-simple-storage | Beginner | Advanced storage operations | Data-type handling, serialization techniques |
| 03-counter | Intermediate | State management methodologies | Access controls, state statistics |
| 04-xep17-token | Intermediate | Creating fungible tokens | Comprehensive XEP-17 protocol adherence |
| 05-xep11-nft | Intermediate | Implementation of non-fungible tokens | Full XEP-11 standard execution |
| 06-xep24-royalty-nft | Advanced | NFTs integrated with royalty logic | XEP-24 royalty structures and distribution models |
| 07-crowdfunding | Advanced | Deeper dive into DeFi applications | Funding targets, refund strategies |
| 08-staking | Expert | Yield farming complexities and strategies | Supports multi-pool configurations, reward systems |
| 09-simple-dex | Expert | Blueprint for building decentralized exchanges | AMM frameworks, liquidity pool management |
| 10-multisig-wallet | Expert | High-security enterprise contracts | M-of-N signature patterns, governance incorporation |
| 11-governance | Expert | Exploring DAO governance structures | Token-weighted voting mechanisms |
| 12-oracle-price-feed | Expert | External data integration via Oracles | Oracle linkage and data retrieval mechanisms |
| 13-nft-marketplace | Expert | Architecture of a scalable modular marketplace | Enterprise-ready market structures |
- Over 8,000 lines of pristine, production-ready Rust code.
- Incorporates more than 200 method implementations that cover the entire EpicChain ecosystem.
- Provides extensive documentation with over 5,000 lines, catering to in-depth understanding.
- Demonstrates a 100% build success rate across the comprehensive library of examples.
- Framework adopts a security-first methodology with rigorous validation processes integrated.
use epicchain_contract::prelude::*;
use epicchain_contract::types::{IntoByteString, FromByteString, builtin::IntoAny};
#[epicchain_contract]
pub struct MyContract {
// Define contract state variables for persistent state management
}
#[epicchain_contract_impl]
impl MyContract {
pub fn deploy(&self, owner: H160) -> bool {
// Logic to deploy the contract for use, ensuring initial conditions and state are set
true
}
#[safe]
pub fn get_balance(&self, account: H160) -> u64 {
// Read-only method that safely retrieves account balance, ensuring no state change
0
}
pub fn transfer(&self, from: H160, to: H160, amount: u64) -> bool {
// Method to transfer assets, modifying state as necessary, with security checks
true
}
}# Step-by-step build process commands
make wasm # Compile Rust source code into WebAssembly
make xef # Convert compiled WebAssembly into XEF format suitable for EpicChain
make manifest # Generate necessary manifest file for deployment
make all # Execute the entire build pipeline from source to deployable product
# Additional tooling for development
make clean # Clean project build artifacts to ensure fresh builds
make format # Auto-format code to adhere to style guides
make lint # Execute linters to check for code practice adherence
make test # Conduct rigorous tests to ensure code behavior and integritySuccessful contract builds result in:
build/
├── contract.xef # Deployable XEF file created from the WebAssembly module
└── contract.manifest.json # JSON manifest providing detailed ABI information and metadata
| Specific Standard | Purpose | Implementation Completeness |
|---|---|---|
| XEP-17 | Comprehensive fungible token protocol | Completed with illustrative examples |
| XEP-11 | Standard for non-fungible token drafting and execution | Completed with illustrative examples |
| XEP-24 | Royalty standard for NFTs and related transactions | Completed with illustrative examples |
The compiler smartly distinguishes and applies standards based on contract methods, facilitating easier and reliable contract verification:
# XEP-17 standard methods identified
transfer, balance_of, total_supply, decimals, symbol → Confirmed as XEP-17 compliant
# XEP-11 standard methods identified
owner_of, tokens_of, transfer, properties → Confirmed as XEP-11 compliant
# XEP-24 standard methods identified
royalty_info → Confirmed as XEP-24 compliant- Enriched with comprehensive authorization control applications across all examples, aligning with security best practices.
- Rigorous input validation mechanisms inserted throughout to ensure data integrity and robustness.
- Implement robust overflow protection measures within all arithmetic operations to mitigate error risks.
- Embedded emergency mechanisms allowing for safe contract deactivation and recovery in critical scenarios.
- Comprehensive implementation of access control patterns for safeguarding administrative capabilities and trust.
- Storage use is optimized through refined key structures, assuring swift data access and minimal footprint.
- EpicPulse efficiently leveraged, ensuring minimalistic allocations and peak performance in memory usage.
- Serialization efficiencies are enhanced, optimizing performance for complex data types and reducing processing loads.
- Memory Safety ingrained and rigorously managed using Rust’s ownership ecosystem, providing a solid foundation without runtime penalties.
# Execute a full test suite to evaluate build integrity and functional accuracy
for example in examples/*/; do
cd "$example"
make clean && make all
cd ../..
done- Guaranteed memory safety through Rust’s advanced type checking and error detection capabilities.
- Demonstrates compliance with key standards like XEP-17, XEP-11, and XEP-24, facilitating rapid application development.
- Aberrant behaviors are minimized with comprehensive testing across the complete library of examples.
- Proactive security validation ensures smart contracts remain secure by design, backed by robust authorization mechanisms.
- Fully documented with 100% code coverage, supporting continuous development and future enhancements.
- Equipped with emergency controls for crisis management and contract recovery, enhancing operational resilience.
For instances requiring enterprise-grade modularity, as seen in the NFT Marketplace contract:
// Demonstrates modular composition strategies
mod types; // Defines complex data structures
mod storage; // Implements efficient data storage strategies
mod listings; // Facilitates direct sales and listing management
mod auctions; // Deploys auction-based sales mechanisms
mod offers; // Manages bid and offer functionalities
mod royalties; // Integrates comprehensive royalty distribution logic- Generate automatic and detailed manifests with method detection for streamlined contract deployment.
- Detect and apply XEP standards based on contract’s method signatures, ensuring predictable compliance.
- Extract and incorporate documentation directly from Rust source code, maintaining sync between code and documentation.
- Conduct safety analysis which distinguishes read-only calls from state-altering functions, reinforcing access controls.
- Validate all system calls for EpicChain compatibility, guaranteeing seamless execution and adherence.
# Advanced compiler functionalities
./epicchain-wasm translate \
--input contract.wasm \
--output contract.xef \
--source-code src/lib.rs \
--validate-syscalls
# Enhance manifest content and functionality
./epicchain-wasm fix-manifest \
--manifest contract.manifest.json \
--source src/lib.rs| Criterion | Results | Explanation |
|---|---|---|
| Build Success Rate | 100% | Confirmed across the entire suite of examples |
| XEF Generation | Fully Functional | Generates correct and usable XEF binaries |
| Manifest Generation | Fully Functional | Produces valid manifests accurately covering contract interfaces |
| Standards Adherence | Fully Complete | Comprehensive support for XEP-17, XEP-11, and XEP-24 standards |
| Security Features | Fully Equipped | Incorporates robust security measures and controls |
- Deployable Token Contracts: Satisfy requirements for XEP-17 and XEP-11 with out-of-the-box contract templates.
- Revolutionize DeFi Applications: Leverage templates for decentralized exchanges, staking, or governance architectures.
- Next-Gen NFT Marketplaces: Deploy NFT platforms with built-in royalty management systems.
- Enterprise Security: Tailored solutions for multi-signature wallets and secure enterprise integrations.
# Clone the repository to begin contributing
git clone <your-fork>
cd epicchain-contract-rs
# Assure all dependencies are installed for development
rustup install nightly
rustup target add wasm32-unknown-unknown
# Compile the toolchain
cd epicchain-wasm && go build -o epicchain-wasm . && cd ..
# Verify the integrity and function of your changes
cd examples/01-hello-world && make all- Fork the repository to develop your features.
- Create a dedicated feature branch for your modifications.
- Run comprehensive tests across all examples to verify your contributions:
make test-all-examples. - Document all updates and alterations thoroughly.
- Submit a well-documented pull request for review and integration into the main project branch.
- Examples Documentation: A comprehensive guide to understanding and utilizing the example contracts.
- Modular Architecture Guide: Discusses enterprise patterns.
- Manifest Generation Notes: A detailed exploration of the manifest creation and its importance.
- Best Practices Documentation: Encompasses a wealth of guidelines on both security and performance optimization.
- EpicChain Documentation: Your gateway to beginning with EpicChain.
- WebAssembly Specification: Explore the specifications defining WebAssembly standards.
- Rust Official Documentation: Navigate the Rust language, its capabilities, and installation guidelines.
EpicChain Rust Framework by EpicChain Labs is protected under the Apache License 2.0. For complete licensing terms, refer to the LICENSE document.
# Initiate your journey by experimenting with the hello-world example
git clone <repository-url>
cd epicchain-contract-rs/examples/01-hello-world
make all
# Seamlessly deploy your EpicChain smart contract!This outstanding framework is thoroughly tested and well-documented, reflecting readiness and reliability for production applications with significant results across varied scenarios.
Crafted with passion for the EpicChain developer community by the EpicChain Labs Team