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s.golasch
2023-08-01 13:49:46 +02:00
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build/node_modules/prepack/lib/intrinsics/ecma262/String.js generated vendored Normal file
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
exports.default = function (realm) {
// ECMA262 21.1.1
var func = new _index.NativeFunctionValue(realm, "String", "String", 1, function (context, _ref, argCount, NewTarget) {
var _ref2 = _slicedToArray(_ref, 1),
value = _ref2[0];
var s = void 0;
// 1. If no arguments were passed to this function invocation, let s be "".
if (argCount === 0) {
s = realm.intrinsics.emptyString;
} else {
// 2. Else,
// a. If NewTarget is undefined and Type(value) is Symbol, return SymbolDescriptiveString(value).
if (!NewTarget && value instanceof _index.SymbolValue) {
return new _index.StringValue(realm, (0, _index2.SymbolDescriptiveString)(realm, value));
}
// b. Let s be ? ToString(value).
s = new _index.StringValue(realm, _singletons.To.ToStringPartial(realm, value));
}
// 3. If NewTarget is undefined, return s.
if (!NewTarget) return s;
// 4. Return ? StringCreate(s, ? GetPrototypeFromConstructor(NewTarget, "%StringPrototype%")).
return _singletons.Create.StringCreate(realm, s, (0, _index2.GetPrototypeFromConstructor)(realm, NewTarget, "StringPrototype"));
});
// ECMA262 21.1.2.1 ( ..._codeUnits_ )
func.defineNativeMethod("fromCharCode", 1, function (context, codeUnits, argCount) {
// 1. Let codeUnits be a List containing the arguments passed to this function.
codeUnits;
// 2. Let length be the number of elements in codeUnits.
var length = argCount;
// 3. Let elements be a new empty List.
var elements = [];
// 4. Let nextIndex be 0.
var nextIndex = 0;
// 5. Repeat while nextIndex < length
while (nextIndex < length) {
// a. Let next be codeUnits[nextIndex].
var next = codeUnits[nextIndex];
// b. Let nextCU be ? ToUint16(next).
var nextCU = _singletons.To.ToUint16(realm, next);
// c. Append nextCU to the end of elements.
elements.push(nextCU);
// d. Let nextIndex be nextIndex + 1.
nextIndex++;
}
// 6. Return the String value whose elements are, in order, the elements in the List elements. If length
// is 0, the empty string is returned.
return new _index.StringValue(realm, String.fromCharCode.apply(null, elements));
});
// ECMA262 21.1.2.2 ( ..._codePoints_ )
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION)) func.defineNativeMethod("fromCodePoint", 1, function (context, codePoints, argCount) {
// 1. Let codePoints be a List containing the arguments passed to this function.
codePoints;
// 2. Let length be the number of elements in codePoints.
var length = argCount;
// 3. Let elements be a new empty List.
var elements = [];
// 4. Let nextIndex be 0.
var nextIndex = 0;
// 5. Repeat while nextIndex < length
while (nextIndex < length) {
// a. Let next be codePoints[nextIndex].
var next = codePoints[nextIndex];
// b. Let nextCP be ? ToNumber(next).
var nextCP = _singletons.To.ToNumber(realm, next);
// c. If SameValue(nextCP, ToInteger(nextCP)) is false, throw a RangeError exception.
if (nextCP !== _singletons.To.ToInteger(realm, nextCP)) {
throw realm.createErrorThrowCompletion(realm.intrinsics.RangeError, "SameValue(nextCP, To.ToInteger(nextCP)) is false");
}
// d. If nextCP < 0 or nextCP > 0x10FFFF, throw a RangeError exception.
if (nextCP < 0 || nextCP > 0x10ffff) {
throw realm.createErrorThrowCompletion(realm.intrinsics.RangeError, "SameValue(nextCP, To.ToInteger(nextCP)) is false");
}
// e. Append the elements of the UTF16Encoding of nextCP to the end of elements.
elements.push(String.fromCodePoint(nextCP));
// f. Let nextIndex be nextIndex + 1.
nextIndex++;
}
// 6. Return the String value whose elements are, in order, the elements in the List elements. If length
// is 0, the empty string is returned.
return new _index.StringValue(realm, elements.join(""));
});
// ECMA262 21.1.2.4
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION)) func.defineNativeMethod("raw", 1, function (context, _ref3, argCount) {
var _ref4 = _toArray(_ref3),
template = _ref4[0],
substitutions = _ref4.slice(1);
// 1. Let substitutions be a List consisting of all of the arguments passed to this function, starting with the second argument. If fewer than two arguments were passed, the List is empty.
substitutions = argCount < 2 ? [] : substitutions;
// 2. Let numberOfSubstitutions be the number of elements in substitutions.
var numberOfSubstitutions = substitutions.length;
// 3. Let cooked be ? ToObject(template).
var cooked = _singletons.To.ToObjectPartial(realm, template);
// 4. Let raw be ? ToObject(? Get(cooked, "raw")).
var raw = _singletons.To.ToObjectPartial(realm, (0, _index2.Get)(realm, cooked, "raw"));
// 5. Let literalSegments be ? ToLength(? Get(raw, "length")).
var literalSegments = _singletons.To.ToLength(realm, (0, _index2.Get)(realm, raw, "length"));
// 6. If literalSegments ≤ 0, return the empty string.
if (literalSegments <= 0) return realm.intrinsics.emptyString;
// 7. Let stringElements be a new empty List.
var stringElements = "";
// 8. Let nextIndex be 0.
var nextIndex = 0;
// 9. Repeat
while (true) {
// a. Let nextKey be ! ToString(nextIndex).
var nextKey = _singletons.To.ToString(realm, new _index.NumberValue(realm, nextIndex));
// b. Let nextSeg be ? ToString(? Get(raw, nextKey)).
var nextSeg = _singletons.To.ToStringPartial(realm, (0, _index2.Get)(realm, raw, nextKey));
// c. Append in order the code unit elements of nextSeg to the end of stringElements.
stringElements = stringElements + nextSeg;
// d. If nextIndex + 1 = literalSegments, then
if (nextIndex + 1 === literalSegments) {
// i. Return the String value whose code units are, in order, the elements in the List stringElements. If stringElements has no elements, the empty string is returned.
return new _index.StringValue(realm, stringElements);
}
var next = void 0;
// e. If nextIndex < numberOfSubstitutions, let next be substitutions[nextIndex].
if (nextIndex < numberOfSubstitutions) next = substitutions[nextIndex];else
// f. Else, let next be the empty String.
next = realm.intrinsics.emptyString;
// g. Let nextSub be ? ToString(next).
var nextSub = _singletons.To.ToStringPartial(realm, next);
// h. Append in order the code unit elements of nextSub to the end of stringElements.
stringElements = stringElements + nextSub;
// i. Let nextIndex be nextIndex + 1.
nextIndex = nextIndex + 1;
}
(0, _invariant2.default)(false);
});
return func;
};
var _index = require("../../values/index.js");
var _index2 = require("../../methods/index.js");
var _singletons = require("../../singletons.js");
var _invariant = require("../../invariant.js");
var _invariant2 = _interopRequireDefault(_invariant);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _toArray(arr) { return Array.isArray(arr) ? arr : Array.from(arr); }
//# sourceMappingURL=String.js.map