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#[macro_use]
extern crate log;
extern crate serde;
extern crate serde_json;
use std::fmt;
use aw_models::TimeInterval;
use aw_datastore::Datastore;
pub mod datatype;
mod ast;
mod functions;
mod interpret;
mod lexer;
#[allow(
clippy::match_single_binding,
clippy::redundant_closure_call,
unused_braces
)]
mod parser;
pub use crate::datatype::DataType;
pub use crate::interpret::VarEnv;
#[derive(Debug)]
pub enum QueryError {
ParsingError(String),
EmptyQuery(),
VariableNotDefined(String),
MathError(String),
InvalidType(String),
InvalidFunctionParameters(String),
TimeIntervalError(String),
BucketQueryError(String),
RegexCompileError(String),
}
impl fmt::Display for QueryError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}", self)
}
}
pub fn query(code: &str, ti: &TimeInterval, ds: &Datastore) -> Result<DataType, QueryError> {
let lexer = lexer::Lexer::new(code);
let program = match parser::parse(lexer) {
Ok(p) => p,
Err(e) => {
warn!("ParsingError: {:?}", e);
return Err(QueryError::ParsingError(format!("{:?}", e)));
}
};
interpret::interpret_prog(program, ti, ds)
}