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json_view: pointer tokens that cannot be array indices create objects

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editable_document::set() chose an array for a null parent whenever the
token consisted of digits, so "01" threw parse_error.106 and the empty
token threw, while basic_json::operator[](json_pointer) has created an
object for such tokens since #5358. This broke
unit-json_view_edit_values on develop. Use the same RFC 6901 array index
test as basic_json.

Also re-indent the unflatten test that the astyle check flagged.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann committed 2026-10-26 22:21:17 +01:00
1 parent 94fe31eb9b
commit 93011250d3
3 files changed
+16 -8
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tests/src/unit-json_pointer.cpp
+4 -4
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@@ -1122,17 +1122,17 @@ TEST_CASE("flatten of structured values")
// the same for other keys that are not valid array indices
CHECK_THROWS_WITH_AS(json({{"/a/0", 1}, {"/a/1a", 2}}).unflatten(),
"[json.exception.out_of_range.404] unresolved reference token '1a'", json::out_of_range&);
"[json.exception.out_of_range.404] unresolved reference token '1a'", json::out_of_range&);
CHECK_THROWS_WITH_AS(json({{"/a/0", 1}, {"/a/-", 2}}).unflatten(),
"[json.exception.out_of_range.404] unresolved reference token '-'", json::out_of_range&);
"[json.exception.out_of_range.404] unresolved reference token '-'", json::out_of_range&);
}
SECTION("unflatten with the empty token among array indices")
{
CHECK_THROWS_WITH_AS(json({{"/a/0", 1}, {"/a/", 2}}).unflatten(),
"[json.exception.out_of_range.404] unresolved reference token ''", json::out_of_range&);
"[json.exception.out_of_range.404] unresolved reference token ''", json::out_of_range&);
CHECK_THROWS_WITH_AS(json({{"/a/0", 1}, {"/a/1", 2}, {"/a/", 3}}).unflatten(),
"[json.exception.out_of_range.404] unresolved reference token ''", json::out_of_range&);
"[json.exception.out_of_range.404] unresolved reference token ''", json::out_of_range&);
// without an index "0", the empty token is an ordinary object key
CHECK(json({{"/a/", 2}}).unflatten() == json({{"a", {{"", 2}}}}));