Module helpers 

Auxiliary Tool Module

This module provides various auxiliary functions and utility tools used by the WASI assembler, including:

• Utility Functions: Commonly used utility functions.
• Type Conversion: Conversion functions between different types.
• Validation Functions: Input validation and checking functions.
• Constant Definitions: Commonly used constants and enumeration values.

Main Features

Utility Functions

Provides various practical utility functions:

• String processing and validation.
• Numeric conversion and encoding.
• Error handling and formatting.
• Debugging and logging functionality.

Type Conversion

Supports conversion between various types:

• Conversion between WebAssembly types and Rust types.
• Conversion between text format and binary format.
• Conversion between high-level structures and low-level representations.

Validation Functions

Provides input validation and checking functions:

• Syntax validation.
• Semantic checking.
• Type validation.
• Boundary checking.

Usage Example

use wasi_assembler::helpers::*;

// Validate function name
if is_valid_function_name("my_function") {
    println!("Function name is valid");
}

// Convert WebAssembly type
let wasm_type = rust_type_to_wasm_type::<i32>();
println!("WASM type corresponding to Rust i32: {:?}", wasm_type);

// Encode LEB128 value
let value = 12345u64;
let encoded = encode_leb128(value);
println!("LEB128 encoding result: {:?}", encoded);

// Validate module structure
let module = create_sample_module();
if validate_module_structure(&module) {
    println!("Module structure is valid");
}

Extensibility

This module is designed to be extensible, allowing for the easy addition of new auxiliary functions:

use wasi_assembler::helpers::*;

// Add custom validation function
pub fn validate_custom_section(name: &str, data: &[u8]) -> bool {
    // Custom validation logic
    !name.is_empty() && !data.is_empty() && data.len() <= 65535
}

// Use existing utility functions
let name = "my_custom_section";
let data = vec![1, 2, 3, 4, 5];
if validate_custom_section(name, &data) {
    println!("Custom section is valid");
}

Functions

create_sample_module

创建示例模块

encode_leb128

对整数进行 LEB128 编码

is_valid_function_name

检查函数名称是否有效

rust_type_to_wasm_type

将 Rust 类型转换为 WASM 类型

validate_module_structure

验证模块结构