1	#!/bin/bash
2
3	### Locals don't leak
4	f() {
5	local f_var=f_var
6	}
7	f
8	echo $f_var
9	# stdout:
10
11	### Globals leak
12	f() {
13	f_var=f_var
14	}
15	f
16	echo $f_var
17	# stdout: f_var
18
19	### Return statement
20	f() {
21	echo one
22	return 42
23	echo two
24	}
25	f
26	# stdout: one
27	# status: 42
28
29	### Return at top level is error
30	return
31	echo bad
32	# N-I dash/mksh status: 0
33	# N-I bash status: 0
34	# N-I bash stdout: bad
35	# status: 1
36	# stdout-json: ""
37
38	### Dynamic Scope
39	f() {
40	echo $g_var
41	}
42	g() {
43	local g_var=g_var
44	f
45	}
46	g
47	# stdout: g_var
48
49	### Dynamic Scope Mutation (wow this is bad)
50	f() {
51	g_var=f_mutation
52	}
53	g() {
54	local g_var=g_var
55	f
56	echo "g: $g_var"
57	}
58	g
59	# stdout: g: f_mutation
60
61	### Assign local separately
62	f() {
63	local f
64	f='new-value'
65	echo "[$f]"
66	}
67	f
68	# stdout: [new-value]
69	# status: 0
70
71	### Assign a local and global on same line
72	myglobal=
73	f() {
74	local mylocal
75	mylocal=L myglobal=G
76	echo "[$mylocal $myglobal]"
77	}
78	f
79	echo "[$mylocal $myglobal]"
80	# stdout-json: "[L G]\n[ G]\n"
81	# status: 0