b81269e78b
Store parser errors, source range filenames, source code filenames, module source, and Rust parser errors as UTF-16 where they flow back into JavaScript-visible strings. Keep byte-oriented source buffers byte-backed. Remove temporary PrimitiveString, ByteString, and UTF-8 detours from JSON, RegExp, module debug logging, print formatting, and tests.
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Utf16String.h>
|
|
#include <AK/Utf16StringBuilder.h>
|
|
#include <AK/Utf16View.h>
|
|
#include <LibJS/Export.h>
|
|
#include <LibJS/Runtime/Object.h>
|
|
|
|
namespace JS {
|
|
|
|
// A JSON Parse Record is a Record value used to describe the initial state of a
|
|
// value parsed from JSON text. https://tc39.es/ecma262/#sec-json-parse-record
|
|
struct JSONParseRecord {
|
|
// [[Value]]: the value produced by evaluation of [[ParseNode]].
|
|
Value value;
|
|
// [[Key]]: the property name with which [[Value]] is associated.
|
|
Utf16String key;
|
|
// NB: In place of the spec's [[ParseNode]] field, we capture the source text
|
|
// matched by the parse node up front. It is present only when [[Value]] is
|
|
// a primitive, since the reviver context only exposes "source" for those.
|
|
Optional<Utf16String> source;
|
|
// [[Elements]]: if [[Value]] is an Array, the records for its elements; else empty.
|
|
Vector<JSONParseRecord> elements;
|
|
// [[Entries]]: if [[Value]] is a non-Array Object, the records for its entries; else empty.
|
|
Vector<JSONParseRecord> entries;
|
|
};
|
|
|
|
class JS_API JSONObject final : public Object {
|
|
JS_OBJECT(JSONObject, Object);
|
|
GC_DECLARE_ALLOCATOR(JSONObject);
|
|
|
|
public:
|
|
virtual void initialize(Realm&) override;
|
|
virtual ~JSONObject() override = default;
|
|
|
|
// The base implementation of stringify is exposed because it is used by
|
|
// test-js to communicate between the JS tests and the C++ test runner.
|
|
static ThrowCompletionOr<Optional<Utf16String>> stringify_impl(VM&, Value value, Value replacer, Value space);
|
|
|
|
static ThrowCompletionOr<Value> parse_json(VM&, Utf16View text, JSONParseRecord* root_record = nullptr);
|
|
|
|
private:
|
|
explicit JSONObject(Realm&);
|
|
|
|
struct StringifyState {
|
|
GC::Ptr<FunctionObject> replacer_function;
|
|
HashTable<GC::Ptr<Object>> seen_objects;
|
|
size_t indent_depth { 0 };
|
|
Utf16String gap;
|
|
Optional<Vector<Utf16String>> property_list;
|
|
Utf16StringBuilder builder;
|
|
};
|
|
|
|
// Stringify helpers
|
|
static ThrowCompletionOr<bool> serialize_json_property(VM&, StringifyState&, PropertyKey const& key, Object* holder);
|
|
static ThrowCompletionOr<void> serialize_json_object(VM&, StringifyState&, Object&);
|
|
static ThrowCompletionOr<void> serialize_json_array(VM&, StringifyState&, Object&);
|
|
static void quote_json_string(Utf16StringBuilder&, Utf16View const&);
|
|
|
|
// Parse helpers
|
|
static ThrowCompletionOr<Value> internalize_json_property(VM&, Object* holder, PropertyKey const& name, FunctionObject& reviver, JSONParseRecord const* parse_record);
|
|
|
|
JS_DECLARE_NATIVE_FUNCTION(stringify);
|
|
JS_DECLARE_NATIVE_FUNCTION(parse);
|
|
JS_DECLARE_NATIVE_FUNCTION(raw_json);
|
|
JS_DECLARE_NATIVE_FUNCTION(is_raw_json);
|
|
};
|
|
|
|
}
|