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- Parsing invalid JSON no longer asserts
Instead of asserting when coming across malformed JSON,
JsonParser::parse now returns an Optional<JsonValue>.
- Disallow trailing commas in JSON objects and arrays
- No longer parse 'undefined', as that is a purely JS thing
- No longer allow non-whitespace after anything consumed by the initial
parse() call. Examples of things that were valid and no longer are:
- undefineddfz
- {"foo": 1}abcd
- [1,2,3]4
- JsonObject.for_each_member now iterates in original insertion order
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While width-oriented integer types are nicer from the programmer's
perspective, we have to accept that C++ thinks in int/long/long long.
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This was supposed to be the foundation for some kind of pre-kernel
environment, but nobody is working on it right now, so let's move
everything back into the kernel and remove all the confusion.
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This patchsets adds the semantic check of two values. One first approach
was to compare the (generated) json strings of the two values. This works
out in the most cases, but not with numbers, where "1.0" and "1" in JSON
format are semantically the same. Therefore, this patch adds deep (recursive)
check of two JsonValues.
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It always bothered me that we're using the overloaded "dereference"
term for this. Let's call it "unreference" instead. :^)
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As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.
For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.
Going forward, all new source files should include a license header.
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Add dedicated internal types for Int64 and UnsignedInt64. This makes it
a bit more straightforward to work with 64-bit numbers (instead of just
implicitly storing them as doubles.)
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This makes it possible to use something other than a StringBuilder for
serialization (and to produce something other than a String.) :^)
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This also helps avoid JsonValue copying during parse.
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They still use string storage, but this change makes it nice and easy to
work with IPv4 addresses in JSON data.
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If you try to create a JsonValue from a null String(), it will become a
null JsonValue anyway.
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Update ProcessManager, top and WSCPUMonitor to handle the new format.
Since the kernel is not allowed to use floating-point math, we now compile
the JSON classes in AK without JsonValue::Type::Double support.
To accomodate large unsigned ints, I added a JsonValue::Type::UnsignedInt.
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This parser assumes that the JSON is well-formed and will choke horribly
on invalid input.
Since we're primarily interested in parsing our own output right now, this
is less of a problem. Longer-term we're gonna need something better. :^)
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(And various related renames that go along with it.)
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And the variant that serializes into a StringBuilder is called serialize().
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Amusingly I introduced this leak while explaining that this type of leak is
a common bug, and saying I'm used to looking for it. :^)
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This should obviously become a string, but if we don't have it, constructing
from a string literal ends up creating a boolean value.
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This patch adds JsonValue, JsonObject and JsonArray. You can use them to
build up a JsonObject and then serialize it to a string via to_string().
This patch only implements encoding, no decoding yet.
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