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fix thing and get annoyed

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This commit is contained in:
nora 2022-04-10 14:59:03 +02:00
parent 514c626ca3
commit 1b9dfc6ad6
5 changed files with 130 additions and 22 deletions
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50
parser/src/parser.rs
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@ -5,7 +5,7 @@ use chumsky::{prelude::*, Stream};
use crate::{
ast::{
Assignment, BinOp, BinOpKind, Call, ElsePart, Expr, File, FnDecl, IfStmt, Item, Literal,
NameTyPair, Stmt, StructDecl, Ty, TyKind, VarDecl, WhileStmt,
NameTyPair, Stmt, StructDecl, Ty, TyKind, UnaryOp, UnaryOpKind, VarDecl, WhileStmt,
},
lexer::Token,
};
@ -77,7 +77,7 @@ fn expr_parser<'src>() -> impl Parser<Token<'src>, Expr, Error = Error<'src>> +
.map(Expr::Array);
let atom = literal
.or(ident_parser().map(|str| Expr::Name(str.to_owned())))
.or(ident_parser().map(Expr::Name))
.or(array)
.or(expr
.clone()
@ -97,6 +97,14 @@ fn expr_parser<'src>() -> impl Parser<Token<'src>, Expr, Error = Error<'src>> +
})
});
// let _unary_op = just(Token::Minus)
// .to(UnaryOpKind::Neg)
// .or(just(Token::Bang).to(UnaryOpKind::Not))
// .or(just(Token::Asterisk).to(UnaryOpKind::Deref))
// .or(just(Token::Ampersand).to(UnaryOpKind::AddrOf));
// todo: unary
let op = just(Token::Asterisk)
.to(BinOpKind::Mul)
.or(just(Token::Slash).to(BinOpKind::Div));
@ -176,34 +184,27 @@ fn statement_parser<'src>() -> impl Parser<Token<'src>, Stmt, Error = Error<'src
})
});
let block = stmt
.clone()
.repeated()
.delimited_by(just(Token::BraceO), just(Token::BraceC));
let while_loop = just(Token::While)
.ignore_then(expr_parser())
.then(
stmt.clone()
.repeated()
.delimited_by(just(Token::BraceO), just(Token::BraceC)),
)
.then(block.clone())
.map_with_span(|(cond, body), span| Stmt::WhileStmt(WhileStmt { cond, body, span }))
.labelled("while loop");
let if_stmt = recursive(|if_stmt| {
just(Token::If)
.ignore_then(expr_parser())
.then(
stmt.clone()
.repeated()
.delimited_by(just(Token::BraceO), just(Token::BraceC)),
)
.then(block.clone())
.then(
just(Token::Else)
.ignore_then(
if_stmt
.map(|if_stmt| ElsePart::ElseIf(Box::new(if_stmt)))
.or(stmt
.clone()
.repeated()
.delimited_by(just(Token::BraceO), just(Token::BraceC))
.map_with_span(ElsePart::Else)),
.or(block.clone().map_with_span(ElsePart::Else)),
)
.or_not(),
)
@ -340,6 +341,19 @@ mod tests {
insta::assert_debug_snapshot!(r);
}
#[test]
fn unary() {
let r = parse(
"fn main() {
-(*5);
&5;
2 + &8;
*6 * *8; // :)
}",
);
insta::assert_debug_snapshot!(r);
}
#[test]
fn function() {
let r = parse("fn foo() -> u64 { 1 + 5; }");
@ -378,7 +392,7 @@ mod tests {
#[test]
fn types() {
let r = parse("fn types() -> *u64 { Test test = 2; *Hello = true; }");
let r = parse("fn types() -> *u64 { Test test = 2; *u64 int = 25; }");
insta::assert_debug_snapshot!(r);
}
}