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GPC Validation Engine in Rust

Rust · Tokio · Regex · TypeScript · React · 2025

Overview

A Rust-based static analysis engine for GPC — a proprietary hardware scripting language with strict syntax rules, no official tooling, and cryptic compiler errors. 41 error codes, auto-fix capabilities, and a rich diagnostic UI.

Error Categories

Category	Codes	Examples
Structure	E001-E008	Brace mismatch, missing main block, duplicate names
Syntax	E009-E010, E027-E033	void → function, ternary operators, string constants
Functions	E015	set_val() value out of range (-100 to 100)
OLED	E016-E018	Coordinate bounds (0-127 x, 0-63 y)
Combos	E011-E012	call() only in combos, wait() bounds

Auto-Fix in Rust

pub fn apply_fix(code: &str, error: &ValidationError) -> Result<String, String> {
    match error.error_code.as_str() {
        "E009" => {
            let re = Regex::new(r"\bvoid\s+(\w+)\s*\(")?;
            Ok(re.replace_all(code, "function $1(").to_string())
        },
        "E010" => {
            let re = Regex::new(r"(#define\s+\w+\s+[^;]+);")?;
            Ok(re.replace_all(code, "$1").to_string())
        },
    }
}

Diagnostics Panel

• Build status: PASSED / FAILED / WARNINGS (pulsing indicator)
• Filter pills: All / Errors / Warnings / Tips with counts
• Expandable issue cards with "WHY THIS MATTERS" explanations
• Code health bar (visual percentage)
• "Fix All" batch operation
• Jump-to-line integration with code editor