57 lines
1.6 KiB
Rust
57 lines
1.6 KiB
Rust
use itertools::Itertools;
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use language::{ProgrammingLanguageInterface, EvalOptions, TraceArtifact, ReplOutput};
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mod parsing;
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pub struct Schala {
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}
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impl Schala {
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pub fn new() -> Schala {
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Schala { }
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}
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}
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impl ProgrammingLanguageInterface for Schala {
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fn get_language_name(&self) -> String {
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"Schala".to_string()
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}
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fn evaluate_in_repl(&mut self, input: &str, options: &EvalOptions) -> ReplOutput {
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let mut output = ReplOutput::default();
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let tokens = parsing::tokenize(input);
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if options.debug_tokens {
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let token_string = tokens.iter().map(|t| format!("{:?}<{}>", t.token_type, t.offset)).join(", ");
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output.add_artifact(TraceArtifact::new("tokens", format!("{:?}", token_string)));
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}
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{
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let token_errors: Vec<&String> = tokens.iter().filter_map(|t| t.get_error()).collect();
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if token_errors.len() != 0 {
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output.add_output(format!("Tokenization error: {:?}\n", token_errors));
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return output;
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}
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}
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let ast = match parsing::parse(tokens) {
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(Ok(ast), trace) => {
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if options.debug_parse {
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output.add_artifact(TraceArtifact::new_parse_trace(trace));
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output.add_artifact(TraceArtifact::new("ast", format!("{:?}", ast)));
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}
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ast
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},
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(Err(err), trace) => {
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output.add_artifact(TraceArtifact::new_parse_trace(trace));
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output.add_output(format!("Parse error: {:?}\n", err.msg));
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return output;
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}
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};
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let evaluation_output = format!("{:?}", ast);
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output.add_output(evaluation_output);
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return output;
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}
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}
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