54 lines
1.2 KiB
Rust
54 lines
1.2 KiB
Rust
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use crate::syn::ast::*;
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use crate::syn::token::*;
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use pest::{error::Error, iterators::Pair, Parser};
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#[derive(pest_derive::Parser)]
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#[grammar = "syn/parser.pest"]
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pub struct SybilParser;
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pub type Result<T, E = Error<Rule>> = std::result::Result<T, E>;
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fn parse_atom(pair: Pair<Rule>) -> Result<SpAtom> {
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match pair.as_rule() {
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Rule::float => todo!(),
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Rule::int => todo!(),
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Rule::assign => todo!(),
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Rule::word => todo!(),
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Rule::str => todo!(),
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_ => unreachable!(),
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}
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}
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fn parse_expr(pair: Pair<Rule>) -> Result<SpExpr> {
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match pair.as_rule() {
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Rule::atom => {
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todo!()
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}
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Rule::quote => {
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todo!()
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}
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Rule::apply => {
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todo!()
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}
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_ => unreachable!(),
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}
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}
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fn parse_stmt(pair: Pair<Rule>) -> Result<SpStmt> {
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match pair.as_rule() {
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Rule::expr => {
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todo!()
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}
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_ => unreachable!(),
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}
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}
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pub fn parse_file(text: &str) -> Result<Vec<SpStmt>> {
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let input = SybilParser::parse(Rule::file, text)?.next().unwrap();
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let mut stmts = Vec::new();
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for pair in input.into_inner() {
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stmts.push(parse_stmt(pair)?);
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}
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Ok(stmts)
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}
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