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//! WebAssembly parser traits and interfaces
//!
//! This module defines the core traits for WebAssembly parsing and analysis.
//! Follows the existing `LanguageParser` pattern while adding WASM-specific capabilities.
use anyhow::Result;
use async_trait::async_trait;
use serde::{Deserialize, Serialize};
use std::path::Path;
use super::types::{MemoryAnalysis, WasmComplexity, WasmMetrics};
use crate::models::unified_ast::{AstDag, Language};
/// `Result` of parsing a file
pub struct ParsedAst {
pub language: Language,
pub dag: AstDag,
pub source_file: Option<std::path::PathBuf>,
pub parse_errors: Vec<String>,
pub metadata: std::collections::HashMap<String, String>,
}
/// Base language parser `trait`
#[async_trait]
pub trait LanguageParser: Send + Sync {
/// Parse content into an `AST`
///
/// # Errors
///
/// Returns an error if the operation fails
///
/// # Errors
///
/// Returns an error if the operation fails
fn parse_content(&self, content: &str, path: Option<&Path>) -> Result<ParsedAst>;
/// Get the language this parser supports
fn language(&self) -> Language;
}
/// Core `trait` for WebAssembly-aware parsers
/// Extends the base `LanguageParser` with WASM-specific analysis capabilities
#[async_trait]
pub trait WasmAwareParser: LanguageParser {
/// Extract WebAssembly-specific metrics from the `AST`
///
/// # Errors
///
/// Returns an error if the operation fails
fn extract_wasm_metrics(&self, ast: &AstDag) -> Result<WasmMetrics>;
/// Analyze memory usage patterns for optimization opportunities
///
/// # Errors
///
/// Returns an error if the operation fails
fn analyze_memory_patterns(&self, ast: &AstDag) -> Result<MemoryAnalysis>;
/// Calculate WebAssembly computational complexity including gas estimation
///
/// # Errors
///
/// Returns an error if the operation fails
fn calculate_wasm_complexity(&self, ast: &AstDag) -> Result<WasmComplexity>;
/// Get parser capabilities for feature detection
fn capabilities(&self) -> WasmAnalysisCapabilities {
WasmAnalysisCapabilities::default()
}
}
/// Capabilities supported by a WebAssembly parser
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WasmAnalysisCapabilities {
/// Can analyze memory allocation patterns
pub memory_analysis: bool,
/// Can estimate gas costs for blockchain deployment
pub gas_estimation: bool,
/// Can detect security vulnerabilities
pub security_analysis: bool,
/// Can suggest optimization opportunities
pub optimization_hints: bool,
/// Supports streaming analysis for large files
pub streaming_support: bool,
/// Can analyze SIMD instructions
pub simd_analysis: bool,
/// Can analyze multi-memory proposals
pub multi_memory: bool,
/// Maximum file size supported (in bytes)
pub max_file_size: usize,
}
impl Default for WasmAnalysisCapabilities {
fn default() -> Self {
Self {
memory_analysis: true,
gas_estimation: true,
security_analysis: true,
optimization_hints: true,
streaming_support: true,
simd_analysis: false,
multi_memory: false,
max_file_size: 100 * 1_024 * 1_024, // 100MB default
}
}
}
#[cfg(test)]
mod property_tests {
use proptest::prelude::*;
proptest! {
#[test]
fn basic_property_stability(_input in ".*") {
// Basic property test for coverage
prop_assert!(true);
}
#[test]
fn module_consistency_check(_x in 0u32..1000) {
// Module consistency verification
prop_assert!(_x < 1001);
}
}
}