v2 / vlib / v / tests / options / option_ptr_ptr_test.v
47 lines · 39 sloc · 930 bytes · 6488041a749df9762348d019c4223908c476f2e2
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1import json


2


3@[heap]


4struct Foo {


5    a &int


6    b &string


7    c &f64


8    d &&int


9    e &&&string


10}


11


12struct FooOption {


13mut:


14    a ?&int


15    b ?&string


16    c ?&f64


17    d ?&&int


18    e ?&&&string


19}


20


21fn test_ptr() {


22    data := '{ "a": 123, "b": "foo", "c": 1.2, "d": 321, "e": "bar"}'


23    foo := json.decode(Foo, data)!


24    println(foo)


25


26    assert dump(*foo.a) == 123


27    assert dump(*foo.b) == 'foo'


28    assert dump(*foo.c) == 1.2


29    assert dump(**foo.d) == 321


30    assert dump(***foo.e) == 'bar'


31


32    assert dump(json.encode(foo)) == '{"a":123,"b":"foo","c":1.2,"d":321,"e":"bar"}'


33}


34


35fn test_option_ptr() ? {


36    data := '{ "a": 123, "b": "foo", "c": 1.2, "d": 321, "e": "bar"}'


37    foo := json.decode(FooOption, data) or { return none }


38    println(foo)


39


40    assert dump(*foo.a?) == 123


41    assert dump(*foo.b?) == 'foo'


42    assert dump(*foo.c?) == 1.2


43    assert dump(**foo.d?) == 321


44    assert dump(***foo.e?) == 'bar'


45


46    assert dump(json.encode(foo)) == '{"a":123,"b":"foo","c":1.2,"d":321,"e":"bar"}'


47}


48