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.
39 lines
1.6 KiB
JavaScript
39 lines
1.6 KiB
JavaScript
test("basic functionality", () => {
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let string = `{"var1":10,"var2":"hello","var3":{"nested":5}}`;
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let object = JSON.parse(string, (key, value) => (typeof value === "number" ? value * 2 : value));
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expect(object).toEqual({ var1: 20, var2: "hello", var3: { nested: 10 } });
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object = JSON.parse(string, (key, value) => (typeof value === "number" ? undefined : value));
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expect(object).toEqual({ var2: "hello", var3: {} });
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});
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test("reviver context exposes source text of primitive values", () => {
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const sources = [];
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JSON.parse('[1.5, "a", true, null, {"x": 2}]', function (key, value, context) {
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expect(typeof context).toBe("object");
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expect(Object.getPrototypeOf(context)).toBe(Object.prototype);
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sources.push(context.source);
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return value;
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});
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// Primitives carry their matched source text; arrays/objects have no source.
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expect(sources).toEqual(["1.5", '"a"', "true", "null", "2", undefined, undefined]);
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});
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test("reviver context preserves non-ASCII source text", () => {
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const sources = [];
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JSON.parse('["é", "\\u00e9", "😀"]', function (key, value, context) {
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if (key !== "") sources.push(context.source);
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return value;
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});
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expect(sources).toEqual(['"é"', '"\\u00e9"', '"😀"']);
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});
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test("reviver context has no source for forward-modified values", () => {
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const result = JSON.parse("[1, 2]", function (key, value, { source }) {
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if (key === "0") this[1] = { injected: true };
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else if (key !== "") expect(source).toBeUndefined();
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return this[key];
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});
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expect(result).toEqual([1, { injected: true }]);
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});
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