luaur-ast 0.1.1

Lexer, parser, and AST for Luau (faithful Rust port).
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

use crate::records::ast_array::AstArray;
use crate::records::ast_expr::AstExpr;
use crate::records::location::Location;
use crate::records::parser::Parser;
use crate::records::position::Position;
use crate::records::temp_vector::TempVector;

impl Parser {
    pub fn parse_call_list(
        &mut self,
        comma_positions: *mut TempVector<'_, Position>,
    ) -> (AstArray<*mut AstExpr>, Location, Location) {
        let current_type = self.lexer.current().r#type;
        luaur_common::LUAU_ASSERT!(
            current_type == crate::records::lexeme::Type('(' as i32)
                || current_type == crate::records::lexeme::Type('{' as i32)
                || current_type == crate::records::lexeme::Type::RawString
                || current_type == crate::records::lexeme::Type::QuotedString
        );

        if current_type == crate::records::lexeme::Type('(' as i32) {
            let arg_start = self.lexer.current().location.end;

            let match_paren = crate::records::match_lexeme::MatchLexeme::new(self.lexer.current());
            self.next_lexeme();

            let mut args = TempVector::new(&mut self.scratch_expr);

            if self.lexer.current().r#type != crate::records::lexeme::Type(')' as i32) {
                if !comma_positions.is_null() {
                    self.parse_expr_list(&mut args, Some(unsafe { &mut *comma_positions }));
                } else {
                    self.parse_expr_list(&mut args, None);
                }
            }

            let end = self.lexer.current().location;
            let arg_end = end.end;

            self.expect_match_and_consume(')', &match_paren, false);

            let args_array = self.copy_temp_vector_t(&args);
            (
                args_array,
                Location::new(arg_start, arg_end),
                Location::new(match_paren.position, self.lexer.previous_location().begin),
            )
        } else if current_type == crate::records::lexeme::Type('{' as i32) {
            let arg_start = self.lexer.current().location.end;
            let expr = self.parse_table_constructor();
            let arg_end = self.lexer.previous_location().end;

            let expr_array = self.copy_t_usize(&expr as *const *mut AstExpr, 1);
            (expr_array, Location::new(arg_start, arg_end), unsafe {
                (*expr).base.location
            })
        } else {
            let arg_location = self.lexer.current().location;
            let expr = self.parse_string();
            let expr_array = self.copy_t_usize(&expr as *const *mut AstExpr, 1);
            (expr_array, arg_location, unsafe { (*expr).base.location })
        }
    }
}