minisql/parser/src/core.rs
2024-01-28 22:40:41 +01:00

44 lines
1.2 KiB
Rust

use crate::syntax::RawQuerySyntax;
use minisql::{interpreter::DbSchema, operation::Operation};
use nom::{branch::alt, IResult};
use thiserror::Error;
use crate::{
parsing::{
create::parse_create, delete::parse_delete, index::parse_create_index,
insert::parse_insert, select::parse_select,
},
validation::{validate_operation, ValidationError},
};
#[derive(Debug, Error)]
pub enum Error {
#[error("parsing error: {0}")]
ParsingError(String),
#[error("validation error: {0}")]
ValidationError(#[from] ValidationError),
}
fn parse_statement(input: &str) -> IResult<&str, RawQuerySyntax> {
alt((
parse_insert,
parse_create,
parse_delete,
//parse_drop,
parse_select,
// parse_update,
parse_create_index,
))(input)
}
pub fn parse_and_validate(str_query: String, db_schema: &DbSchema) -> Result<Operation, Error> {
let (_, op) =
parse_statement(str_query.as_str()).map_err(|err| Error::ParsingError(err.to_string()))?;
Ok(validate_operation(op, db_schema)?)
}
// #[test]
// fn test_select() {
// parse_and_validate("SELECT * FROM users;".to_string(), &Vec::new()).unwrap();
// }