aboutsummaryrefslogtreecommitdiff
path: root/core/scopes.nom
blob: 3dfe473ae69c59acffba3100b693718a5ad4c9bf (plain)
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
#!/usr/bin/env nomsu -V2.5.5.4
#
    This file contains definitions pertaining to variable scoping

use "core/metaprogramming.nom"
use "core/operators.nom"
use "core/collections.nom"
use "core/control_flow.nom"

test:
    %x = "outer"
    with local %x:
        %x = "inner"
        assume (%x == "inner")
    
    assume (%x == "outer")
    action [foo] "outer foo"
    with local [action (foo)]:
        action [foo] "inner foo"
        assume ((foo) == "inner foo")
    
    assume ((foo) == "outer foo")

compile [with local %locals %body, with local %locals do %body] to:
    %body_lua = (%body as lua statements)
    if %locals.type is:
        "Dict":
            %body_lua = (..)
                Lua ".."
                    \(compile as (<- %locals))
                    \%body_lua
            
            declare locals ("\(%.1 as lua)" for % in %locals) in %body_lua
        
        "List":
            declare locals ("\(% as lua)" for % in %locals) in %body_lua
        "Var" "Action":
            declare locals ["\(%locals as lua)"] in %body_lua
        else:
            compile error at %locals.source "Unexpected locals: %s"
    
    return (..)
        Lua ".."
            do
                \%body_lua
            end