rl_lang/interpreter/stdlib/rl/
eval_isolated.rs

1use crate::interpreter::{
2    evaluator::Evaluator,
3    stdlib::common::{extract_string, verr, vok, vs},
4    values::Value,
5};
6use crate::lexer::tokenizer::Tokenizer;
7use crate::parser::parser_logic::Parser;
8use crate::utils::source::SourceFile;
9
10pub fn func(_: &mut Evaluator, value: Value) -> Value {
11    let code = match extract_string(value, "eval_isolated") {
12        Ok(s) => s,
13        Err(e) => return verr!(vs!(e)),
14    };
15
16    let source = SourceFile::new("<eval>", code);
17
18    let tokens = match Tokenizer::lex(source.clone()) {
19        Ok(t) => t,
20        Err(e) => return verr!(vs!(e.message().to_string())),
21    };
22
23    let (ast, statements) = match Parser::parse(tokens, source.clone()) {
24        Ok(s) => s,
25        Err(e) => return verr!(vs!(e.message().to_string())),
26    };
27
28    let mut fresh_eval = Evaluator::default().with_stdlib().with_source_file(source);
29    let resolved = fresh_eval.resolver.resolve_program(ast, statements);
30
31    fresh_eval.output_buffer = Some(String::new());
32
33    let result = fresh_eval.evaluate_block(&resolved);
34    let captured = fresh_eval.output_buffer.take().unwrap_or_default();
35
36    match result {
37        Ok(_) => vok!(vs!(captured)),
38        Err(e) => verr!(vs!(e.message().to_string())),
39    }
40}
rl_lang/interpreter/stdlib/rl/eval_isolated.rs

rl_lang/interpreter/stdlib/rl/
eval_isolated.rs
