wanniepannie/fudge2.1
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Iwan Snel
2025-10-20 19:29:49 +02:00
commit a9044f62f4
16 changed files with 76 additions and 0 deletions
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src/ast/comparison.rs Normal file
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src/ast/evaluable.rs Normal file
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src/ast/expression.rs Normal file
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src/ast/literal.rs Normal file
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src/ast/logical.rs Normal file
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src/ast/mod.rs Normal file
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src/ast/operators.rs Normal file
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src/expressions.lalrpop Normal file
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src/grammar.ebnf Normal file
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src/literals.lalrpop Normal file
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use std::str::FromStr;
grammar;
pub Atom: f64 = {
<n:Int> => n as f64,
Float,
"(" <Atom> ")",
};
pub Int: i64 = <s:r"[0-9]|[1-9][0-9]*"> => i64::from_str(s).unwrap();
pub Float: f64 = <s:r"[+-]?([0-9]*[.][0-9]+|[0-9]*([.][0-9]+)?[Ee][+-]?[1-9][0-9]*)"> => f64::from_str(s).unwrap();
pub StringLiteral: &'input str = <s:"\"[^\"]\""> => s;

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src/main.rs Normal file
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mod ast;
mod optimising;
fn main() {
println!("Hello, world!");
}

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src/optimising/constfolding.rs Normal file
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src/optimising/mod.rs Normal file
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src/tests/expressions.rs Normal file
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src/tests/literals.rs Normal file
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src/tests/mod.rs Normal file
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#[cfg(test)]
mod test {
use crate::grammar;
use grammar::AtomParser as Parser;
#[test]
fn int_literals() {
assert!(Parser::new().parse("22").is_ok());
assert!(Parser::new().parse("(22)").is_ok());
assert!(Parser::new().parse("((22))").is_ok());
}
#[test]
fn test_float_dots() {
assert!(Parser::new().parse("1.1").is_ok());
assert!(Parser::new().parse("-1.1").is_ok());
assert!(Parser::new().parse(".1").is_ok());
assert!(Parser::new().parse("-.1").is_ok());
}
#[test]
fn test_float_exps() {
assert!(Parser::new().parse("(1e1)").is_ok());
assert!(Parser::new().parse("(-1e1)").is_ok());
assert!(Parser::new().parse("(1e-1)").is_ok());
assert!(Parser::new().parse("(-1e-1)").is_ok());
assert!(Parser::new().parse("(1E1)").is_ok());
assert!(Parser::new().parse("(-1E1)").is_ok());
assert!(Parser::new().parse("(1E-1)").is_ok());
assert!(Parser::new().parse("(-1E-1)").is_ok());
assert!(Parser::new().parse("(1.1e1)").is_ok());
assert!(Parser::new().parse("(-1.1e1)").is_ok());
assert!(Parser::new().parse("(1.1e-1)").is_ok());
assert!(Parser::new().parse("(-1.1e-1)").is_ok());
assert!(Parser::new().parse("(1.1E1)").is_ok());
assert!(Parser::new().parse("(-1.1E1)").is_ok());
assert!(Parser::new().parse("(1.1E-1)").is_ok());
assert!(Parser::new().parse("(-1.1E-1)").is_ok());
assert!(Parser::new().parse("(1.0e1)").is_ok());
assert!(Parser::new().parse("(-0.1e1)").is_ok());
assert!(Parser::new().parse("(1.0e-1)").is_ok());
assert!(Parser::new().parse("(-1.0e-1)").is_ok());
assert!(Parser::new().parse("(1.E1)").is_err());
assert!(Parser::new().parse("(-1E1)").is_ok());
assert!(Parser::new().parse("(1E-10)").is_ok());
assert!(Parser::new().parse("(-1E-1)").is_ok());
assert!(Parser::new().parse("(1.1e1)").is_ok());
assert!(Parser::new().parse("(-1.1e1)").is_ok());
assert!(Parser::new().parse("(1.1e-1)").is_ok());
assert!(Parser::new().parse("(-1.1e-1)").is_ok());
assert!(Parser::new().parse("(1.1E1)").is_ok());
assert!(Parser::new().parse("(-1.1E1)").is_ok());
assert!(Parser::new().parse("(1.1E-1)").is_ok());
assert!(Parser::new().parse("(-1.1E-1)").is_ok());
assert!(Parser::new().parse("FOOBAR").is_err());
}
}