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// |reftest| shell-option(--enable-json-parse-with-source) skip-if(!JSON.hasOwnProperty('isRawJSON')||!xulRuntime.shell) -- json-parse-with-source is not enabled unconditionally, requires shell-options
// Copyright (C) 2023 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-json.parse
description: >
Context argument and its source property behave as expected when parsing an
ObjectLiteral JSON string
includes: [compareArray.js, propertyHelper.js]
features: [json-parse-with-source]
---*/
function assertOnlyOwnProperties(object, props, message) {
assert.compareArray(Object.getOwnPropertyNames(object), props, `${message}: object should have no other properties than expected`);
assert.compareArray(Object.getOwnPropertySymbols(object), [], `${message}: object should have no own symbol properties`);
}
function reviverWithExpectedSources(expectedSources) {
let i = 0;
return function reviver(key, value, context) {
assert.sameValue(typeof context, "object", "context should be an object");
assert.sameValue(Object.getPrototypeOf(context), Object.prototype, "context should be a plain object");
if (expectedSources[i] !== undefined) {
assertOnlyOwnProperties(context, ["source"],
"the JSON value is a primitve value, its context should only have a source property");
verifyProperty(context, "source", {
value: expectedSources[i++],
configurable: true,
enumerable: true,
writable: true,
}, { restore: true });
} else {
assertOnlyOwnProperties(context, [],
"the JSON value is an Array or Object, its context should have no property");
i++;
}
return value;
};
}
assertOnlyOwnProperties(
JSON.parse('{}', reviverWithExpectedSources([])),
[],
"empty object"
);
const singleProp = JSON.parse('{"42":37}', reviverWithExpectedSources(['37']));
assertOnlyOwnProperties(singleProp, ["42"], "single numeric property key");
assert.sameValue(singleProp[42], 37, "value of single numeric property key");
const multipleProps = JSON.parse('{"x": 1, "y": 2}', reviverWithExpectedSources(['1', '2']));
assertOnlyOwnProperties(multipleProps, ["x", "y"], "multiple properties");
assert.sameValue(multipleProps.x, 1, "multiple properties, value of x");
assert.sameValue(multipleProps.y, 2, "multiple properties, value of y");
// undefined means the json value is JSObject or JSArray and the passed
// context to the reviver function has no source property.
const arrayProps = JSON.parse(
'{"x": [1,2], "y": [2,3]}',
reviverWithExpectedSources(['1', '2', undefined, '2', '3', undefined])
);
assertOnlyOwnProperties(arrayProps, ["x", "y"], "array-valued properties");
assert.compareArray(arrayProps.x, [1, 2], "array-valued properties, value of x");
assert.compareArray(arrayProps.y, [2, 3], "array-valued properties, value of y");
const objectProps = JSON.parse(
'{"x": {"x": 1, "y": 2}}',
reviverWithExpectedSources(['1', '2', undefined, undefined])
);
assertOnlyOwnProperties(objectProps, ["x"], "object-valued properties");
assertOnlyOwnProperties(objectProps.x, ["x", "y"], "object-valued properties, value of x");
assert.sameValue(objectProps.x.x, 1, "object-valued properties, value of x.x");
assert.sameValue(objectProps.x.y, 2, "object-valued properties, value of x.y");
reportCompare(0, 0);