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Merge remote-tracking branch 'origin/develop' into claude/fix-issue-3989-db7e45

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann committed 2026-10-06 08:39:31 +02:00
2 parents 632f5369fe 5ecb704f6b
commit 2ea5bed0e3
7 files changed
+156 -23
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tests/src/unit-class_parser.cpp
+52
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@@ -2319,6 +2319,58 @@ TEST_CASE("parser class")
#endif
}
SECTION("comments before separators")
{
// The parser first checks for the expected ':' or ',' and only then
// falls back to the full token switch, which skips comments. A comment
// directly before a separator takes that fallback.
json _;
SECTION("ignored")
{
const std::vector<std::pair<std::string, json>> inputs =
{
{"{\"a\" /* c */ : 1}", {{"a", 1}}},
{"{\"a\" // c\n: 1}", {{"a", 1}}},
{R"({"a": 1, "b" /* c */ : 2})", {{"a", 1}, {"b", 2}}},
{R"({"a": 1 /* c */ , "b": 2})", {{"a", 1}, {"b", 2}}},
{"{\"a\": 1 // c\n, \"b\": 2}", {{"a", 1}, {"b", 2}}},
{"[1 /* c */ , 2]", {1, 2}},
{"[1 // c\n, 2]", {1, 2}},
{"{\"a\" /* c */ /* d */ : [1 // c\n , 2 /**/ ] /**/ , \"b\" : 3}", {{"a", {1, 2}}, {"b", 3}}}
};
for (const auto& input : inputs)
{
CAPTURE(input.first)
CHECK(json::parse(input.first, nullptr, true, true) == input.second);
CHECK(json::accept(input.first, true));
}
}
SECTION("ignored, with trailing commas")
{
CHECK(json::parse(std::string("[1 /* c */ , ]"), nullptr, true, true, true) == json({1}));
CHECK(json::parse(std::string("{\"a\": 1 /* c */ , }"), nullptr, true, true, true) == json({{"a", 1}}));
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("[1 /* c */ , ]"), nullptr, true, true),
"[json.exception.parse_error.101] parse error at line 1, column 14: syntax error while parsing value - unexpected ']'; expected '[', '{', or a literal", json::parse_error);
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("{\"a\": 1 /* c */ , }"), nullptr, true, true),
"[json.exception.parse_error.101] parse error at line 1, column 19: syntax error while parsing object key - unexpected '}'; expected string literal", json::parse_error);
}
SECTION("not ignored")
{
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("{\"a\" /* c */ : 1}")),
"[json.exception.parse_error.101] parse error at line 1, column 6: syntax error while parsing object separator - invalid literal; last read: '\"a\" /'; expected ':'", json::parse_error);
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("{\"a\": 1, \"b\" /* c */ : 2}")),
"[json.exception.parse_error.101] parse error at line 1, column 14: syntax error while parsing object separator - invalid literal; last read: '\"b\" /'; expected ':'", json::parse_error);
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("{\"a\": 1 /* c */ , \"b\": 2}")),
"[json.exception.parse_error.101] parse error at line 1, column 9: syntax error while parsing object - invalid literal; last read: '1 /'; expected '}'", json::parse_error);
CHECK_THROWS_WITH_AS(_ = json::parse(std::string("[1 /* c */ , 2]")),
"[json.exception.parse_error.101] parse error at line 1, column 4: syntax error while parsing array - invalid literal; last read: '1 /'; expected ']'", json::parse_error);
CHECK(!json::accept(std::string("[1 /* c */ , 2]")));
}
}
#if JSON_DIAGNOSTIC_POSITIONS
// Macro for all test cases for start_pos and end_pos
#define SETUP_TESTCASES() \