luaur_ast/methods/
parser_parse_prefix_expr.rs

1use crate::enums::type_lexer::Type;
2use crate::records::ast_expr::AstExpr;
3use crate::records::ast_expr_group::AstExprGroup;
4use crate::records::cst_expr_group::CstExprGroup;
5use crate::records::location::Location;
6use crate::records::match_lexeme::MatchLexeme;
7use crate::records::parser::Parser;
8use crate::records::position::Position;
9
10impl Parser {
11    pub fn parse_prefix_expr(&mut self) -> *mut AstExpr {
12        if self.lexer.current().r#type == Type('(' as i32) {
13            let start = self.lexer.current().location.begin;
14            let match_paren = MatchLexeme::new(self.lexer.current());
15            self.next_lexeme();
16
17            let expr = self.parse_expr_i32(0);
18            let mut end = self.lexer.current().location.end;
19            let mut close_paren_found = false;
20
21            if self.lexer.current().r#type != Type(')' as i32) {
22                let suggestion = if self.lexer.current().r#type == Type('=' as i32) {
23                    Some("; did you mean to use '{' when defining a table?")
24                } else {
25                    None
26                };
27
28                self.expect_match_and_consume_fail(Type(')' as i32), &match_paren, suggestion);
29                end = self.lexer.previous_location().end;
30            } else {
31                close_paren_found = true;
32                self.next_lexeme();
33            }
34
35            let expr_group = unsafe {
36                (*self.allocator).alloc(AstExprGroup::new(Location::new(start, end), expr))
37            };
38
39            if luaur_common::FFlag::LuauCstExprGroup.get() && self.options.store_cst_data {
40                let close_pos = if close_paren_found {
41                    self.lexer.previous_location().begin
42                } else {
43                    Position::missing()
44                };
45                let cst_node = unsafe { (*self.allocator).alloc(CstExprGroup::new(close_pos)) };
46                self.cst_node_map.try_insert(
47                    expr_group as *mut crate::records::ast_node::AstNode,
48                    cst_node as *mut crate::records::cst_node::CstNode,
49                );
50            }
51
52            expr_group as *mut AstExpr
53        } else {
54            self.parse_name_expr("expression")
55        }
56    }
57}
luaur_ast/methods/parser_parse_prefix_expr.rs

luaur_ast/methods/
parser_parse_prefix_expr.rs
