Files
hakorune/src/parser/expr/ternary.rs

30 lines
906 B
Rust

use crate::ast::{ASTNode, Span};
use crate::parser::common::ParserUtils;
use crate::parser::{NyashParser, ParseError};
use crate::tokenizer::TokenType;
#[inline]
#[allow(dead_code)]
fn is_sugar_enabled() -> bool {
crate::parser::sugar_gate::is_enabled()
}
impl NyashParser {
pub(crate) fn expr_parse_ternary(&mut self) -> Result<ASTNode, ParseError> {
let cond = self.expr_parse_coalesce()?;
if self.match_token(&TokenType::QUESTION) {
self.advance();
let then_expr = self.parse_expression()?;
self.consume(TokenType::COLON)?;
let else_expr = self.parse_expression()?;
return Ok(ASTNode::If {
condition: Box::new(cond),
then_body: vec![then_expr],
else_body: Some(vec![else_expr]),
span: Span::unknown(),
});
}
Ok(cond)
}
}