|
|
|
|
| use crate::registry::Parser;
|
| use subleq_ir::ast::*;
|
| use anyhow::{Result, anyhow};
|
| use tracing::debug;
|
|
|
| pub struct JavaScriptParser;
|
|
|
| impl Parser for JavaScriptParser {
|
| fn parse(&self, source: &str, language: &str) -> Result<Program> {
|
| debug!("Parsing JavaScript code");
|
|
|
| let mut stmts = Vec::new();
|
|
|
|
|
| for line in source.lines() {
|
| let trimmed = line.trim();
|
| if trimmed.is_empty() || trimmed.starts_with("//") {
|
| continue;
|
| }
|
|
|
|
|
| if let Some(eq_pos) = trimmed.find('=') {
|
| let prefix = trimmed[..eq_pos].trim();
|
| if prefix.starts_with("const ") || prefix.starts_with("let ") || prefix.starts_with("var ") {
|
| let var_name = prefix.split_whitespace().last().unwrap_or("").to_string();
|
| let value_str = trimmed[eq_pos + 1..].trim().trim_end_matches(';');
|
|
|
| if let Ok(num) = value_str.parse::<i64>() {
|
| stmts.push(Stmt::Define {
|
| name: var_name,
|
| value: Box::new(Expr::Literal(Literal::Int(num))),
|
| ty: Type::I64,
|
| });
|
| }
|
| }
|
| }
|
| }
|
|
|
| Ok(Program {
|
| stmts,
|
| metadata: ProgramMetadata {
|
| source_language: language.to_string(),
|
| source_file: None,
|
| timestamp: None,
|
| },
|
| })
|
| }
|
|
|
| fn language_code(&self) -> &'static str {
|
| "js"
|
| }
|
|
|
| fn validate(&self, source: &str) -> Result<()> {
|
| if source.is_empty() {
|
| return Err(anyhow!("Empty source"));
|
| }
|
|
|
| if !source.contains('{') && !source.contains('=') && !source.contains('(') {
|
| return Err(anyhow!("Source looks invalid for JavaScript"));
|
| }
|
| Ok(())
|
| }
|
| }
|
|
|
| #[cfg(test)]
|
| mod tests {
|
| use super::*;
|
|
|
| #[test]
|
| fn test_javascript_parser() {
|
| let parser = JavaScriptParser;
|
| let source = "const x = 42;\nlet y = 100;";
|
| let prog = parser.parse(source, "js").unwrap();
|
| assert_eq!(prog.stmts.len(), 2);
|
| }
|
|
|
| #[test]
|
| fn test_javascript_validate() {
|
| let parser = JavaScriptParser;
|
| assert!(parser.validate("const x = 1;").is_ok());
|
| assert!(parser.validate("").is_err());
|
| }
|
| }
|
|
|
