meriyah
Version:
A 100% compliant, self-hosted javascript parser with high focus on both performance and stability
1,275 lines (1,265 loc) • 324 kB
JavaScript
'use strict';
const unicodeLookup = ((compressed, lookup) => {
const result = new Uint32Array(69632);
let index = 0;
let subIndex = 0;
while (index < 2571) {
const inst = compressed[index++];
if (inst < 0) {
subIndex -= inst;
}
else {
let code = compressed[index++];
if (inst & 2)
code = lookup[code];
if (inst & 1) {
result.fill(code, subIndex, subIndex += compressed[index++]);
}
else {
result[subIndex++] = code;
}
}
}
return result;
})([-1, 2, 26, 2, 27, 2, 5, -1, 0, 77595648, 3, 44, 2, 3, 0, 14, 2, 63, 2, 64, 3, 0, 3, 0, 3168796671, 0, 4294956992, 2, 1, 2, 0, 2, 41, 3, 0, 4, 0, 4294966523, 3, 0, 4, 2, 16, 2, 65, 2, 0, 0, 4294836735, 0, 3221225471, 0, 4294901942, 2, 66, 0, 134152192, 3, 0, 2, 0, 4294951935, 3, 0, 2, 0, 2683305983, 0, 2684354047, 2, 18, 2, 0, 0, 4294961151, 3, 0, 2, 2, 19, 2, 0, 0, 608174079, 2, 0, 2, 60, 2, 7, 2, 6, 0, 4286611199, 3, 0, 2, 2, 1, 3, 0, 3, 0, 4294901711, 2, 40, 0, 4089839103, 0, 2961209759, 0, 1342439375, 0, 4294543342, 0, 3547201023, 0, 1577204103, 0, 4194240, 0, 4294688750, 2, 2, 0, 80831, 0, 4261478351, 0, 4294549486, 2, 2, 0, 2967484831, 0, 196559, 0, 3594373100, 0, 3288319768, 0, 8469959, 0, 65472, 2, 3, 0, 4093640191, 0, 660618719, 0, 65487, 0, 4294828015, 0, 4092591615, 0, 1616920031, 0, 982991, 2, 3, 2, 0, 0, 2163244511, 0, 4227923919, 0, 4236247022, 2, 71, 0, 4284449919, 0, 851904, 2, 4, 2, 12, 0, 67076095, -1, 2, 72, 0, 1073741743, 0, 4093607775, -1, 0, 50331649, 0, 3265266687, 2, 33, 0, 4294844415, 0, 4278190047, 2, 20, 2, 137, -1, 3, 0, 2, 2, 23, 2, 0, 2, 10, 2, 0, 2, 15, 2, 22, 3, 0, 10, 2, 74, 2, 0, 2, 75, 2, 76, 2, 77, 2, 0, 2, 78, 2, 0, 2, 11, 0, 261632, 2, 25, 3, 0, 2, 2, 13, 2, 4, 3, 0, 18, 2, 79, 2, 5, 3, 0, 2, 2, 80, 0, 2151677951, 2, 29, 2, 9, 0, 909311, 3, 0, 2, 0, 814743551, 2, 49, 0, 67090432, 3, 0, 2, 2, 42, 2, 0, 2, 6, 2, 0, 2, 30, 2, 8, 0, 268374015, 2, 110, 2, 51, 2, 0, 2, 81, 0, 134153215, -1, 2, 7, 2, 0, 2, 8, 0, 2684354559, 0, 67044351, 0, 3221160064, 2, 17, -1, 3, 0, 2, 2, 53, 0, 1046528, 3, 0, 3, 2, 9, 2, 0, 2, 54, 0, 4294960127, 2, 10, 2, 6, 2, 11, 0, 4294377472, 2, 12, 3, 0, 16, 2, 13, 2, 0, 2, 82, 2, 10, 2, 0, 2, 83, 2, 84, 2, 85, 0, 12288, 2, 55, 0, 1048577, 2, 86, 2, 14, -1, 2, 14, 0, 131042, 2, 87, 2, 88, 2, 89, 2, 0, 2, 34, -83, 3, 0, 7, 0, 1046559, 2, 0, 2, 15, 2, 0, 0, 2147516671, 2, 21, 3, 90, 2, 2, 0, -16, 2, 91, 0, 524222462, 2, 4, 2, 0, 0, 4269801471, 2, 4, 3, 0, 2, 2, 28, 2, 16, 3, 0, 2, 2, 17, 2, 0, -1, 2, 18, -16, 3, 0, 206, -2, 3, 0, 692, 2, 73, -1, 2, 18, 2, 10, 3, 0, 8, 2, 93, 2, 133, 2, 0, 0, 3220242431, 3, 0, 3, 2, 19, 2, 94, 2, 95, 3, 0, 2, 2, 96, 2, 0, 2, 97, 2, 46, 2, 0, 0, 4351, 2, 0, 2, 9, 3, 0, 2, 0, 67043391, 0, 3909091327, 2, 0, 2, 24, 2, 9, 2, 20, 3, 0, 2, 0, 67076097, 2, 8, 2, 0, 2, 21, 0, 67059711, 0, 4236247039, 3, 0, 2, 0, 939524103, 0, 8191999, 2, 101, 2, 102, 2, 22, 2, 23, 3, 0, 3, 0, 67057663, 3, 0, 349, 2, 103, 2, 104, 2, 7, -264, 3, 0, 11, 2, 24, 3, 0, 2, 2, 32, -1, 0, 3774349439, 2, 105, 2, 106, 3, 0, 2, 2, 19, 2, 107, 3, 0, 10, 2, 10, 2, 18, 2, 0, 2, 47, 2, 0, 2, 31, 2, 108, 2, 25, 0, 1638399, 0, 57344, 2, 109, 3, 0, 3, 2, 20, 2, 26, 2, 27, 2, 5, 2, 28, 2, 0, 2, 8, 2, 111, -1, 2, 112, 2, 113, 2, 114, -1, 3, 0, 3, 2, 12, -2, 2, 0, 2, 29, -3, 0, 536870912, -4, 2, 20, 2, 0, 2, 36, 0, 1, 2, 0, 2, 67, 2, 6, 2, 12, 2, 10, 2, 0, 2, 115, -1, 3, 0, 4, 2, 10, 2, 23, 2, 116, 2, 7, 2, 0, 2, 117, 2, 0, 2, 118, 2, 119, 2, 120, 2, 0, 2, 9, 3, 0, 9, 2, 21, 2, 30, 2, 31, 2, 121, 2, 122, -2, 2, 123, 2, 124, 2, 30, 2, 21, 2, 8, -2, 2, 125, 2, 30, 2, 32, -2, 2, 0, 2, 39, -2, 0, 4277137519, 0, 2269118463, -1, 3, 20, 2, -1, 2, 33, 2, 38, 2, 0, 3, 30, 2, 2, 35, 2, 19, -3, 3, 0, 2, 2, 34, -1, 2, 0, 2, 35, 2, 0, 2, 35, 2, 0, 2, 48, 2, 0, 0, 4294950463, 2, 37, -7, 2, 0, 0, 203775, 2, 57, 0, 4026531840, 2, 20, 2, 43, 2, 36, 2, 18, 2, 37, 2, 18, 2, 126, 2, 21, 3, 0, 2, 2, 38, 0, 2151677888, 2, 0, 2, 12, 0, 4294901764, 2, 144, 2, 0, 2, 58, 2, 56, 0, 5242879, 3, 0, 2, 0, 402644511, -1, 2, 128, 2, 39, 0, 3, -1, 2, 129, 2, 130, 2, 0, 0, 67045375, 2, 40, 0, 4226678271, 0, 3766565279, 0, 2039759, 2, 132, 2, 41, 0, 1046437, 0, 6, 3, 0, 2, 0, 3288270847, 0, 3, 3, 0, 2, 0, 67043519, -5, 2, 0, 0, 4282384383, 0, 1056964609, -1, 3, 0, 2, 0, 67043345, -1, 2, 0, 2, 42, 2, 23, 2, 50, 2, 11, 2, 61, 2, 38, -5, 2, 0, 2, 12, -3, 3, 0, 2, 0, 2147484671, 2, 134, 0, 4190109695, 2, 52, -2, 2, 135, 0, 4244635647, 0, 27, 2, 0, 2, 8, 2, 43, 2, 0, 2, 68, 2, 18, 2, 0, 2, 42, -6, 2, 0, 2, 45, 2, 59, 2, 44, 2, 45, 2, 46, 2, 47, 0, 8388351, -2, 2, 136, 0, 3028287487, 2, 48, 2, 138, 0, 33259519, 2, 49, -9, 2, 21, 0, 4294836223, 0, 3355443199, 0, 134152199, -2, 2, 69, -2, 3, 0, 28, 2, 32, -3, 3, 0, 3, 2, 17, 3, 0, 6, 2, 50, -81, 2, 18, 3, 0, 2, 2, 36, 3, 0, 33, 2, 25, 2, 30, 3, 0, 124, 2, 12, 3, 0, 18, 2, 38, -213, 2, 0, 2, 32, -54, 3, 0, 17, 2, 42, 2, 8, 2, 23, 2, 0, 2, 8, 2, 23, 2, 51, 2, 0, 2, 21, 2, 52, 2, 139, 2, 25, -13, 2, 0, 2, 53, -6, 3, 0, 2, -4, 3, 0, 2, 0, 4294936575, 2, 0, 0, 4294934783, -2, 0, 196635, 3, 0, 191, 2, 54, 3, 0, 38, 2, 30, 2, 55, 2, 34, -278, 2, 140, 3, 0, 9, 2, 141, 2, 142, 2, 56, 3, 0, 11, 2, 7, -72, 3, 0, 3, 2, 143, 0, 1677656575, -130, 2, 26, -16, 2, 0, 2, 24, 2, 38, -16, 0, 4161266656, 0, 4071, 0, 15360, -4, 2, 57, -13, 3, 0, 2, 2, 58, 2, 0, 2, 145, 2, 146, 2, 62, 2, 0, 2, 147, 2, 148, 2, 149, 3, 0, 10, 2, 150, 2, 151, 2, 22, 3, 58, 2, 3, 152, 2, 3, 59, 2, 0, 4294954999, 2, 0, -16, 2, 0, 2, 92, 2, 0, 0, 2105343, 0, 4160749584, 0, 65534, -34, 2, 8, 2, 154, -6, 0, 4194303871, 0, 4294903771, 2, 0, 2, 60, 2, 100, -3, 2, 0, 0, 1073684479, 0, 17407, -9, 2, 18, 2, 17, 2, 0, 2, 32, -14, 2, 18, 2, 32, -6, 2, 18, 2, 12, -15, 2, 155, 3, 0, 6, 0, 8323103, -1, 3, 0, 2, 2, 61, -37, 2, 62, 2, 156, 2, 157, 2, 158, 2, 159, 2, 160, -105, 2, 26, -32, 3, 0, 1335, -1, 3, 0, 129, 2, 32, 3, 0, 6, 2, 10, 3, 0, 180, 2, 161, 3, 0, 233, 2, 162, 3, 0, 18, 2, 10, -77, 3, 0, 16, 2, 10, -47, 3, 0, 154, 2, 6, 3, 0, 130, 2, 25, -22250, 3, 0, 7, 2, 25, -6130, 3, 5, 2, -1, 0, 69207040, 3, 44, 2, 3, 0, 14, 2, 63, 2, 64, -3, 0, 3168731136, 0, 4294956864, 2, 1, 2, 0, 2, 41, 3, 0, 4, 0, 4294966275, 3, 0, 4, 2, 16, 2, 65, 2, 0, 2, 34, -1, 2, 18, 2, 66, -1, 2, 0, 0, 2047, 0, 4294885376, 3, 0, 2, 0, 3145727, 0, 2617294944, 0, 4294770688, 2, 25, 2, 67, 3, 0, 2, 0, 131135, 2, 98, 0, 70256639, 0, 71303167, 0, 272, 2, 42, 2, 6, 0, 32511, 2, 0, 2, 49, -1, 2, 99, 2, 68, 0, 4278255616, 0, 4294836227, 0, 4294549473, 0, 600178175, 0, 2952806400, 0, 268632067, 0, 4294543328, 0, 57540095, 0, 1577058304, 0, 1835008, 0, 4294688736, 2, 70, 2, 69, 0, 33554435, 2, 131, 2, 70, 0, 2952790016, 0, 131075, 0, 3594373096, 0, 67094296, 2, 69, -1, 0, 4294828000, 0, 603979263, 0, 654311424, 0, 3, 0, 4294828001, 0, 602930687, 0, 1610612736, 0, 393219, 0, 4294828016, 0, 671088639, 0, 2154840064, 0, 4227858435, 0, 4236247008, 2, 71, 2, 38, -1, 2, 4, 0, 917503, 2, 38, -1, 2, 72, 0, 537788335, 0, 4026531935, -1, 0, 1, -1, 2, 33, 2, 73, 0, 7936, -3, 2, 0, 0, 2147485695, 0, 1010761728, 0, 4292984930, 0, 16387, 2, 0, 2, 15, 2, 22, 3, 0, 10, 2, 74, 2, 0, 2, 75, 2, 76, 2, 77, 2, 0, 2, 78, 2, 0, 2, 12, -1, 2, 25, 3, 0, 2, 2, 13, 2, 4, 3, 0, 18, 2, 79, 2, 5, 3, 0, 2, 2, 80, 0, 2147745791, 3, 19, 2, 0, 122879, 2, 0, 2, 9, 0, 276824064, -2, 3, 0, 2, 2, 42, 2, 0, 0, 4294903295, 2, 0, 2, 30, 2, 8, -1, 2, 18, 2, 51, 2, 0, 2, 81, 2, 49, -1, 2, 21, 2, 0, 2, 29, -2, 0, 128, -2, 2, 28, 2, 9, 0, 8160, -1, 2, 127, 0, 4227907585, 2, 0, 2, 37, 2, 0, 2, 50, 0, 4227915776, 2, 10, 2, 6, 2, 11, -1, 0, 74440192, 3, 0, 6, -2, 3, 0, 8, 2, 13, 2, 0, 2, 82, 2, 10, 2, 0, 2, 83, 2, 84, 2, 85, -3, 2, 86, 2, 14, -3, 2, 87, 2, 88, 2, 89, 2, 0, 2, 34, -83, 3, 0, 7, 0, 817183, 2, 0, 2, 15, 2, 0, 0, 33023, 2, 21, 3, 90, 2, -17, 2, 91, 0, 524157950, 2, 4, 2, 0, 2, 92, 2, 4, 2, 0, 2, 22, 2, 28, 2, 16, 3, 0, 2, 2, 17, 2, 0, -1, 2, 18, -16, 3, 0, 206, -2, 3, 0, 692, 2, 73, -1, 2, 18, 2, 10, 3, 0, 8, 2, 93, 0, 3072, 2, 0, 0, 2147516415, 2, 10, 3, 0, 2, 2, 25, 2, 94, 2, 95, 3, 0, 2, 2, 96, 2, 0, 2, 97, 2, 46, 0, 4294965179, 0, 7, 2, 0, 2, 9, 2, 95, 2, 9, -1, 0, 1761345536, 2, 98, 0, 4294901823, 2, 38, 2, 20, 2, 99, 2, 35, 2, 100, 0, 2080440287, 2, 0, 2, 34, 2, 153, 0, 3296722943, 2, 0, 0, 1046675455, 0, 939524101, 0, 1837055, 2, 101, 2, 102, 2, 22, 2, 23, 3, 0, 3, 0, 7, 3, 0, 349, 2, 103, 2, 104, 2, 7, -264, 3, 0, 11, 2, 24, 3, 0, 2, 2, 32, -1, 0, 2700607615, 2, 105, 2, 106, 3, 0, 2, 2, 19, 2, 107, 3, 0, 10, 2, 10, 2, 18, 2, 0, 2, 47, 2, 0, 2, 31, 2, 108, -3, 2, 109, 3, 0, 3, 2, 20, -1, 3, 5, 2, 2, 110, 2, 0, 2, 8, 2, 111, -1, 2, 112, 2, 113, 2, 114, -1, 3, 0, 3, 2, 12, -2, 2, 0, 2, 29, -8, 2, 20, 2, 0, 2, 36, -1, 2, 0, 2, 67, 2, 6, 2, 30, 2, 10, 2, 0, 2, 115, -1, 3, 0, 4, 2, 10, 2, 18, 2, 116, 2, 7, 2, 0, 2, 117, 2, 0, 2, 118, 2, 119, 2, 120, 2, 0, 2, 9, 3, 0, 9, 2, 21, 2, 30, 2, 31, 2, 121, 2, 122, -2, 2, 123, 2, 124, 2, 30, 2, 21, 2, 8, -2, 2, 125, 2, 30, 2, 32, -2, 2, 0, 2, 39, -2, 0, 4277075969, 2, 30, -1, 3, 20, 2, -1, 2, 33, 2, 126, 2, 0, 3, 30, 2, 2, 35, 2, 19, -3, 3, 0, 2, 2, 34, -1, 2, 0, 2, 35, 2, 0, 2, 35, 2, 0, 2, 50, 2, 98, 0, 4294934591, 2, 37, -7, 2, 0, 0, 197631, 2, 57, -1, 2, 20, 2, 43, 2, 37, 2, 18, 0, 3, 2, 18, 2, 126, 2, 21, 2, 127, 2, 54, -1, 0, 2490368, 2, 127, 2, 25, 2, 18, 2, 34, 2, 127, 2, 38, 0, 4294901904, 0, 4718591, 2, 127, 2, 35, 0, 335544350, -1, 2, 128, 0, 2147487743, 0, 1, -1, 2, 129, 2, 130, 2, 8, -1, 2, 131, 2, 70, 0, 3758161920, 0, 3, 2, 132, 0, 12582911, 0, 655360, -1, 2, 0, 2, 29, 0, 2147485568, 0, 3, 2, 0, 2, 25, 0, 176, -5, 2, 0, 2, 17, 0, 251658240, -1, 2, 0, 2, 25, 0, 16, -1, 2, 0, 0, 16779263, -2, 2, 12, -1, 2, 38, -5, 2, 0, 2, 133, -3, 3, 0, 2, 2, 55, 2, 134, 0, 2147549183, 0, 2, -2, 2, 135, 2, 36, 0, 10, 0, 4294965249, 0, 67633151, 0, 4026597376, 2, 0, 0, 536871935, 2, 18, 2, 0, 2, 42, -6, 2, 0, 0, 1, 2, 59, 2, 17, 0, 1, 2, 46, 2, 25, -3, 2, 136, 2, 36, 2, 137, 2, 138, 0, 16778239, -10, 2, 35, 0, 4294836212, 2, 9, -3, 2, 69, -2, 3, 0, 28, 2, 32, -3, 3, 0, 3, 2, 17, 3, 0, 6, 2, 50, -81, 2, 18, 3, 0, 2, 2, 36, 3, 0, 33, 2, 25, 0, 126, 3, 0, 124, 2, 12, 3, 0, 18, 2, 38, -213, 2, 10, -55, 3, 0, 17, 2, 42, 2, 8, 2, 18, 2, 0, 2, 8, 2, 18, 2, 60, 2, 0, 2, 25, 2, 50, 2, 139, 2, 25, -13, 2, 0, 2, 73, -6, 3, 0, 2, -4, 3, 0, 2, 0, 67583, -1, 2, 107, -2, 0, 11, 3, 0, 191, 2, 54, 3, 0, 38, 2, 30, 2, 55, 2, 34, -278, 2, 140, 3, 0, 9, 2, 141, 2, 142, 2, 56, 3, 0, 11, 2, 7, -72, 3, 0, 3, 2, 143, 2, 144, -187, 3, 0, 2, 2, 58, 2, 0, 2, 145, 2, 146, 2, 62, 2, 0, 2, 147, 2, 148, 2, 149, 3, 0, 10, 2, 150, 2, 151, 2, 22, 3, 58, 2, 3, 152, 2, 3, 59, 2, 2, 153, -57, 2, 8, 2, 154, -7, 2, 18, 2, 0, 2, 60, -4, 2, 0, 0, 1065361407, 0, 16384, -9, 2, 18, 2, 60, 2, 0, 2, 133, -14, 2, 18, 2, 133, -6, 2, 18, 0, 81919, -15, 2, 155, 3, 0, 6, 2, 126, -1, 3, 0, 2, 0, 2063, -37, 2, 62, 2, 156, 2, 157, 2, 158, 2, 159, 2, 160, -138, 3, 0, 1335, -1, 3, 0, 129, 2, 32, 3, 0, 6, 2, 10, 3, 0, 180, 2, 161, 3, 0, 233, 2, 162, 3, 0, 18, 2, 10, -77, 3, 0, 16, 2, 10, -47, 3, 0, 154, 2, 6, 3, 0, 130, 2, 25, -28386], [4294967295, 4294967291, 4092460543, 4294828031, 4294967294, 134217726, 4294903807, 268435455, 2147483647, 1048575, 1073741823, 3892314111, 134217727, 1061158911, 536805376, 4294910143, 4294901759, 32767, 4294901760, 262143, 536870911, 8388607, 4160749567, 4294902783, 4294918143, 65535, 67043328, 2281701374, 4294967264, 2097151, 4194303, 255, 67108863, 4294967039, 511, 524287, 131071, 63, 127, 3238002687, 4294549487, 4290772991, 33554431, 4294901888, 4286578687, 67043329, 4294705152, 4294770687, 67043583, 1023, 15, 2047999, 67043343, 67051519, 16777215, 2147483648, 4294902000, 28, 4292870143, 4294966783, 16383, 67047423, 4294967279, 262083, 20511, 41943039, 493567, 4294959104, 603979775, 65536, 602799615, 805044223, 4294965206, 8191, 1031749119, 4294917631, 2134769663, 4286578493, 4282253311, 4294942719, 33540095, 4294905855, 2868854591, 1608515583, 265232348, 534519807, 2147614720, 1060109444, 4093640016, 17376, 2139062143, 224, 4169138175, 4294909951, 4286578688, 4294967292, 4294965759, 535511039, 4294966272, 4294967280, 32768, 8289918, 4294934399, 4294901775, 4294965375, 1602223615, 4294967259, 4294443008, 268369920, 4292804608, 4294967232, 486341884, 4294963199, 3087007615, 1073692671, 4128527, 4279238655, 4294902015, 4160684047, 4290246655, 469499899, 4294967231, 134086655, 4294966591, 2445279231, 3670015, 31, 4294967288, 4294705151, 3221208447, 4294902271, 4294549472, 4294921215, 4095, 4285526655, 4294966527, 4294966143, 64, 4294966719, 3774873592, 1877934080, 262151, 2555904, 536807423, 67043839, 3758096383, 3959414372, 3755993023, 2080374783, 4294835295, 4294967103, 4160749565, 4294934527, 4087, 2016, 2147446655, 184024726, 2862017156, 1593309078, 268434431, 268434414, 4294901763, 4294901761]);
const isIDContinue = (code) => (unicodeLookup[(code >>> 5) + 0] >>> code & 31 & 1) !== 0;
const isIDStart = (code) => (unicodeLookup[(code >>> 5) + 34816] >>> code & 31 & 1) !== 0;
function advanceChar(parser) {
parser.column++;
return (parser.currentChar = parser.source.charCodeAt(++parser.index));
}
function consumePossibleSurrogatePair(parser) {
const hi = parser.currentChar;
if ((hi & 0xfc00) !== 55296)
return 0;
const lo = parser.source.charCodeAt(parser.index + 1);
if ((lo & 0xfc00) !== 56320)
return 0;
return 65536 + ((hi & 0x3ff) << 10) + (lo & 0x3ff);
}
function consumeLineFeed(parser, state) {
parser.currentChar = parser.source.charCodeAt(++parser.index);
parser.flags |= 1;
if ((state & 4) === 0) {
parser.column = 0;
parser.line++;
}
}
function scanNewLine(parser) {
parser.flags |= 1;
parser.currentChar = parser.source.charCodeAt(++parser.index);
parser.column = 0;
parser.line++;
}
function isExoticECMAScriptWhitespace(ch) {
return (ch === 160 ||
ch === 65279 ||
ch === 133 ||
ch === 5760 ||
(ch >= 8192 && ch <= 8203) ||
ch === 8239 ||
ch === 8287 ||
ch === 12288 ||
ch === 8201 ||
ch === 65519);
}
function toHex(code) {
return code < 65 ? code - 48 : (code - 65 + 10) & 0xf;
}
function convertTokenType(t) {
switch (t) {
case 134283266:
return 'NumericLiteral';
case 134283267:
return 'StringLiteral';
case 86021:
case 86022:
return 'BooleanLiteral';
case 86023:
return 'NullLiteral';
case 65540:
return 'RegularExpression';
case 67174408:
case 67174409:
case 131:
return 'TemplateLiteral';
default:
if ((t & 143360) === 143360)
return 'Identifier';
if ((t & 4096) === 4096)
return 'Keyword';
return 'Punctuator';
}
}
const CharTypes = [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
8 | 1024,
0,
0,
8 | 2048,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
8192,
0,
1 | 2,
0,
0,
8192,
0,
0,
0,
256,
0,
256 | 32768,
0,
0,
2 | 16 | 128 | 32 | 64,
2 | 16 | 128 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 32 | 64,
2 | 16 | 512 | 64,
2 | 16 | 512 | 64,
0,
0,
16384,
0,
0,
0,
0,
1 | 2 | 64,
1 | 2 | 64,
1 | 2 | 64,
1 | 2 | 64,
1 | 2 | 64,
1 | 2 | 64,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
1 | 2,
0,
1,
0,
0,
1 | 2 | 4096,
0,
1 | 2 | 4 | 64,
1 | 2 | 4 | 64,
1 | 2 | 4 | 64,
1 | 2 | 4 | 64,
1 | 2 | 4 | 64,
1 | 2 | 4 | 64,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
1 | 2 | 4,
16384,
0,
0,
0,
0
];
const isIdStart = [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
1,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
0
];
const isIdPart = [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
0,
0,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
1,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
0
];
function isIdentifierStart(code) {
return code <= 0x7F
? isIdStart[code] > 0
: isIDStart(code);
}
function isIdentifierPart(code) {
return code <= 0x7F
? isIdPart[code] > 0
: isIDContinue(code) || (code === 8204 || code === 8205);
}
const CommentTypes = ['SingleLine', 'MultiLine', 'HTMLOpen', 'HTMLClose', 'HashbangComment'];
function skipHashBang(parser) {
const { source } = parser;
if (parser.currentChar === 35 && source.charCodeAt(parser.index + 1) === 33) {
advanceChar(parser);
advanceChar(parser);
skipSingleLineComment(parser, source, 0, 4, parser.tokenStart);
}
}
function skipSingleHTMLComment(parser, source, state, context, type, start) {
if (context & 2)
parser.report(0);
return skipSingleLineComment(parser, source, state, type, start);
}
function skipSingleLineComment(parser, source, state, type, start) {
const { index } = parser;
parser.tokenIndex = parser.index;
parser.tokenLine = parser.line;
parser.tokenColumn = parser.column;
while (parser.index < parser.end) {
if (CharTypes[parser.currentChar] & 8) {
const isCR = parser.currentChar === 13;
scanNewLine(parser);
if (isCR && parser.index < parser.end && parser.currentChar === 10)
parser.currentChar = source.charCodeAt(++parser.index);
break;
}
else if ((parser.currentChar ^ 8232) <= 1) {
scanNewLine(parser);
break;
}
advanceChar(parser);
parser.tokenIndex = parser.index;
parser.tokenLine = parser.line;
parser.tokenColumn = parser.column;
}
if (parser.options.onComment) {
const loc = {
start: {
line: start.line,
column: start.column,
},
end: {
line: parser.tokenLine,
column: parser.tokenColumn,
},
};
parser.options.onComment(CommentTypes[type & 0xff], source.slice(index, parser.tokenIndex), start.index, parser.tokenIndex, loc);
}
return state | 1;
}
function skipMultiLineComment(parser, source, state) {
const { index } = parser;
while (parser.index < parser.end) {
if (parser.currentChar < 0x2b) {
let skippedOneAsterisk = false;
while (parser.currentChar === 42) {
if (!skippedOneAsterisk) {
state &= -5;
skippedOneAsterisk = true;
}
if (advanceChar(parser) === 47) {
advanceChar(parser);
if (parser.options.onComment) {
const loc = {
start: {
line: parser.tokenLine,
column: parser.tokenColumn,
},
end: {
line: parser.line,
column: parser.column,
},
};
parser.options.onComment(CommentTypes[1 & 0xff], source.slice(index, parser.index - 2), index - 2, parser.index, loc);
}
parser.tokenIndex = parser.index;
parser.tokenLine = parser.line;
parser.tokenColumn = parser.column;
return state;
}
}
if (skippedOneAsterisk) {
continue;
}
if (CharTypes[parser.currentChar] & 8) {
if (parser.currentChar === 13) {
state |= 1 | 4;
scanNewLine(parser);
}
else {
consumeLineFeed(parser, state);
state = (state & -5) | 1;
}
}
else {
advanceChar(parser);
}
}
else if ((parser.currentChar ^ 8232) <= 1) {
state = (state & -5) | 1;
scanNewLine(parser);
}
else {
state &= -5;
advanceChar(parser);
}
}
parser.report(18);
}
var RegexState;
(function (RegexState) {
RegexState[RegexState["Empty"] = 0] = "Empty";
RegexState[RegexState["Escape"] = 1] = "Escape";
RegexState[RegexState["Class"] = 2] = "Class";
})(RegexState || (RegexState = {}));
var RegexFlags;
(function (RegexFlags) {
RegexFlags[RegexFlags["Empty"] = 0] = "Empty";
RegexFlags[RegexFlags["IgnoreCase"] = 1] = "IgnoreCase";
RegexFlags[RegexFlags["Global"] = 2] = "Global";
RegexFlags[RegexFlags["Multiline"] = 4] = "Multiline";
RegexFlags[RegexFlags["Unicode"] = 16] = "Unicode";
RegexFlags[RegexFlags["Sticky"] = 8] = "Sticky";
RegexFlags[RegexFlags["DotAll"] = 32] = "DotAll";
RegexFlags[RegexFlags["Indices"] = 64] = "Indices";
RegexFlags[RegexFlags["UnicodeSets"] = 128] = "UnicodeSets";
})(RegexFlags || (RegexFlags = {}));
function scanRegularExpression(parser) {
const bodyStart = parser.index;
let preparseState = RegexState.Empty;
loop: while (true) {
const ch = parser.currentChar;
advanceChar(parser);
if (preparseState & RegexState.Escape) {
preparseState &= ~RegexState.Escape;
}
else {
switch (ch) {
case 47:
if (!preparseState)
break loop;
else
break;
case 92:
preparseState |= RegexState.Escape;
break;
case 91:
preparseState |= RegexState.Class;
break;
case 93:
preparseState &= RegexState.Escape;
break;
}
}
if (ch === 13 ||
ch === 10 ||
ch === 8232 ||
ch === 8233) {
parser.report(34);
}
if (parser.index >= parser.source.length) {
return parser.report(34);
}
}
const bodyEnd = parser.index - 1;
let mask = RegexFlags.Empty;
let char = parser.currentChar;
const { index: flagStart } = parser;
while (isIdentifierPart(char)) {
switch (char) {
case 103:
if (mask & RegexFlags.Global)
parser.report(36, 'g');
mask |= RegexFlags.Global;
break;
case 105:
if (mask & RegexFlags.IgnoreCase)
parser.report(36, 'i');
mask |= RegexFlags.IgnoreCase;
break;
case 109:
if (mask & RegexFlags.Multiline)
parser.report(36, 'm');
mask |= RegexFlags.Multiline;
break;
case 117:
if (mask & RegexFlags.Unicode)
parser.report(36, 'u');
if (mask & RegexFlags.UnicodeSets)
parser.report(36, 'vu');
mask |= RegexFlags.Unicode;
break;
case 118:
if (mask & RegexFlags.Unicode)
parser.report(36, 'uv');
if (mask & RegexFlags.UnicodeSets)
parser.report(36, 'v');
mask |= RegexFlags.UnicodeSets;
break;
case 121:
if (mask & RegexFlags.Sticky)
parser.report(36, 'y');
mask |= RegexFlags.Sticky;
break;
case 115:
if (mask & RegexFlags.DotAll)
parser.report(36, 's');
mask |= RegexFlags.DotAll;
break;
case 100:
if (mask & RegexFlags.Indices)
parser.report(36, 'd');
mask |= RegexFlags.Indices;
break;
default:
parser.report(35);
}
char = advanceChar(parser);
}
const flags = parser.source.slice(flagStart, parser.index);
const pattern = parser.source.slice(bodyStart, bodyEnd);
parser.tokenRegExp = { pattern, flags };
if (parser.options.raw)
parser.tokenRaw = parser.source.slice(parser.tokenIndex, parser.index);
parser.tokenValue = validate(parser, pattern, flags);
return 65540;
}
function validate(parser, pattern, flags) {
try {
return new RegExp(pattern, flags);
}
catch {
try {
new RegExp(pattern, flags);
return null;
}
catch {
parser.report(34);
}
}
}
function scanString(parser, context, quote) {
const { index: start } = parser;
let ret = '';
let char = advanceChar(parser);
let marker = parser.index;
while ((CharTypes[char] & 8) === 0) {
if (char === quote) {
ret += parser.source.slice(marker, parser.index);
advanceChar(parser);
if (parser.options.raw)
parser.tokenRaw = parser.source.slice(start, parser.index);
parser.tokenValue = ret;
return 134283267;
}
if ((char & 8) === 8 && char === 92) {
ret += parser.source.slice(marker, parser.index);
char = advanceChar(parser);
if (char < 0x7f || char === 8232 || char === 8233) {
const code = parseEscape(parser, context, char);
if (code >= 0)
ret += String.fromCodePoint(code);
else
handleStringError(parser, code, 0);
}
else {
ret += String.fromCodePoint(char);
}
marker = parser.index + 1;
}
else if (char === 8232 || char === 8233) {
parser.column = -1;
parser.line++;
}
if (parser.index >= parser.end)
parser.report(16);
char = advanceChar(parser);
}
parser.report(16);
}
function parseEscape(parser, context, first, isTemplate = 0) {
switch (first) {
case 98:
return 8;
case 102:
return 12;
case 114:
return 13;
case 110:
return 10;
case 116:
return 9;
case 118:
return 11;
case 13: {
if (parser.index < parser.end) {
const nextChar = parser.source.charCodeAt(parser.index + 1);
if (nextChar === 10) {
parser.index = parser.index + 1;
parser.currentChar = nextChar;
}
}
}
case 10:
case 8232:
case 8233:
parser.column = -1;
parser.line++;
return -1;
case 48:
case 49:
case 50:
case 51: {
let code = first - 48;
let index = parser.index + 1;
let column = parser.column + 1;
if (index < parser.end) {
const next = parser.source.charCodeAt(index);
if ((CharTypes[next] & 32) === 0) {
if (code !== 0 || CharTypes[next] & 512) {
if (context & 1 || isTemplate)
return -2;
parser.flags |= 64;
}
}
else if (context & 1 || isTemplate) {
return -2;
}
else {
parser.currentChar = next;
code = (code << 3) | (next - 48);
index++;
column++;
if (index < parser.end) {
const next = parser.source.charCodeAt(index);
if (CharTypes[next] & 32) {
parser.currentChar = next;
code = (code << 3) | (next - 48);
index++;
column++;
}
}
parser.flags |= 64;
}
parser.index = index - 1;
parser.column = column - 1;
}
return code;
}
case 52:
case 53:
case 54:
case 55: {
if (isTemplate || context & 1)
return -2;
let code = first - 48;
const index = parser.index + 1;
const column = parser.column + 1;
if (index < parser.end) {
const next = parser.source.charCodeAt(index);
if (CharTypes[next] & 32) {
code = (code << 3) | (next - 48);
parser.currentChar = next;
parser.index = index;
parser.column = column;
}
}
parser.flags |= 64;
return code;
}
case 120: {
const ch1 = advanceChar(parser);
if ((CharTypes[ch1] & 64) === 0)
return -4;
const hi = toHex(ch1);
const ch2 = advanceChar(parser);
if ((CharTypes[ch2] & 64) === 0)
return -4;
const lo = toHex(ch2);
return (hi << 4) | lo;
}
case 117: {
const ch = advanceChar(parser);
if (parser.currentChar === 123) {
let code = 0;
while ((CharTypes[advanceChar(parser)] & 64) !== 0) {
code = (code << 4) | toHex(parser.currentChar);
if (code > 1114111)
return -5;
}
if (parser.currentChar < 1 || parser.currentChar !== 125) {
return -4;
}
return code;
}
else {
if ((CharTypes[ch] & 64) === 0)
return -4;
const ch2 = parser.source.charCodeAt(parser.index + 1);
if ((CharTypes[ch2] & 64) === 0)
return -4;
const ch3 = parser.source.charCodeAt(parser.index + 2);
if ((CharTypes[ch3] & 64) === 0)
return -4;
const ch4 = parser.source.charCodeAt(parser.index + 3);
if ((CharTypes[ch4] & 64) === 0)
return -4;
parser.index += 3;
parser.column += 3;
parser.currentChar = parser.source.charCodeAt(parser.index);
return (toHex(ch) << 12) | (toHex(ch2) << 8) | (toHex(ch3) << 4) | toHex(ch4);
}
}
case 56:
case 57:
if (isTemplate || !parser.options.webcompat || context & 1)
return -3;
parser.flags |= 4096;
default:
return first;
}
}
function handleStringError(parser, code, isTemplate) {
switch (code) {
case -1:
return;
case -2:
parser.report(isTemplate ? 2 : 1);
case -3:
parser.report(isTemplate ? 3 : 14);
case -4:
parser.report(7);
case -5:
parser.report(104);
}
}
function scanTemplate(parser, context) {
const { index: start } = parser;
let token = 67174409;
let ret = '';
let char = advanceChar(parser);
while (char !== 96) {
if (char === 36 && parser.source.charCodeAt(parser.index + 1) === 123) {
advanceChar(parser);
token = 67174408;
break;
}
else if (char === 92) {
char = advanceChar(parser);
if (char > 0x7e) {
ret += String.fromCodePoint(char);
}
else {
const { index, line, column } = parser;
const code = parseEscape(parser, context | 1, char, 1);
if (code >= 0) {
ret += String.fromCodePoint(code);
}
else if (code !== -1 && context & 64) {
parser.index = index;
parser.line = line;
parser.column = column;
ret = null;
char = scanBadTemplate(parser, char);
if (char < 0)
token = 67174408;
break;
}
else {
handleStringError(parser, code, 1);
}
}
}
else if (parser.index < parser.end) {
if (char === 13 && parser.source.charCodeAt(parser.index) === 10) {
ret += String.fromCodePoint(char);
parser.currentChar = parser.source.charCodeAt(++parser.index);
}
if (((char & 83) < 3 && char === 10) || (char ^ 8232) <= 1) {
parser.column = -1;
parser.line++;
}
ret += String.fromCodePoint(char);
}
if (parser.index >= parser.end)
parser.report(17);
char = advanceChar(parser);
}
advanceChar(parser);
parser.tokenValue = ret;
parser.tokenRaw = parser.source.slice(start + 1, parser.index - (token === 67174409 ? 1 : 2));
return token;
}
function scanBadTemplate(parser, ch) {
while (ch !== 96) {
switch (ch) {
case 36: {
const index = parser.index + 1;
if (index < parser.end && parser.source.charCodeAt(index) === 123) {
parser.index = index;
parser.column++;
return -ch;
}
break;
}
case 10:
case 8232:
case 8233:
parser.column = -1;
parser.line++;
}
if (parser.index >= parser.end)
parser.report(17);
ch = advanceChar(parser);
}
return ch;
}
function scanTemplateTail(parser, context) {
if (parser.index >= parser.end)
parser.report(0);
parser.index--;
parser.column--;
return scanTemplate(parser, context);
}
const errorMessages = {
[0]: 'Unexpected token',
[30]: "Unexpected token: '%0'",
[1]: 'Octal escape sequences are not allowed in strict mode',
[2]: 'Octal escape sequences are not allowed in template strings',
[3]: '\\8 and \\9 are not allowed in template strings',
[4]: 'Private identifier #%0 is not defined',
[5]: 'Illegal Unicode escape sequence',
[6]: 'Invalid code point %0',
[7]: 'Invalid hexadecimal escape sequence',
[9]: 'Octal literals are not allowed in strict mode',
[8]: 'Decimal integer literals with a leading zero are forbidden in strict mode',
[10]: 'Expected number in radix %0',
[151]: 'Invalid left-hand side assignment to a destructible right-hand side',
[11]: 'Non-number found after exponent indicator',
[12]: 'Invalid BigIntLiteral',
[13]: 'No identifiers allowed directly after numeric literal',
[14]: 'Escapes \\8 or \\9 are not syntactically valid escapes',
[15]: 'Escapes \\8 or \\9 are not allowed in strict mode',
[16]: 'Unterminated string literal',
[17]: 'Unterminated template literal',
[18]: 'Multiline comment was not closed properly',
[19]: 'The identifier contained dynamic unicode escape that was not closed',
[20]: "Illegal character '%0'",
[21]: 'Missing hexadecimal digits',
[22]: 'Invalid implicit octal',
[23]: 'Invalid line break in string literal',
[24]: 'Only unicode escapes are legal in identifier names',
[25]: "Expected '%0'",
[26]: 'Invalid left-hand side in assignment',
[27]: 'Invalid left-hand side in async arrow',
[28]: 'Calls to super must be in the "constructor" method of a class expression or class declaration that has a superclass',
[29]: 'Member access on super must be in a method',
[31]: 'Await expression not allowed in formal parameter',
[32]: 'Yield expression not allowed in formal parameter',
[95]: "Unexpected token: 'escaped keyword'",
[33]: 'Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses',
[123]: 'Async functions can only be declared at the top level or inside a block',
[34]: 'Unterminated regular expression',
[35]: 'Unexpected regular expression flag',
[36]: "Duplicate regular expression flag '%0'",
[37]: '%0 functions must have exactly %1 argument%2',
[38]: 'Setter function argument must not be a rest parameter',
[39]: '%0 declaration must have a name in this context',
[40]: 'Function name may not contain any reserved words or be eval or arguments in strict mode',
[41]: 'The rest operator is missing an argument',
[42]: 'A getter cannot be a generator',
[43]: 'A setter cannot be a generator',
[44]: 'A computed property name must be followed by a colon or paren',
[134]: 'Object literal keys that are strings or numbers must be a method or have a colon',
[46]: 'Found `* async x(){}` but this should be `async * x(){}`',
[45]: 'Getters and setters can not be generators',
[47]: "'%0' can not be generator method",
[48]: "No line break is allowed after '=>'",
[49]: 'The left-hand side of the arrow can only be destructed through assignment',
[50]: 'The binding declaration is not destructible',
[51]: 'Async arrow can not be followed by new expression',
[52]: "Classes may not have a static property named 'prototype'",
[53]: 'Class constructor may not be a %0',
[54]: 'Duplicate constructor method in class',
[55]: 'Invalid increment/decrement operand',
[56]: 'Invalid use of `new` keyword on an increment/decrement expression',
[57]: '`=>` is an invalid assignment target',
[58]: 'Rest element may not have a trailing comma',
[59]: 'Missing initializer in %0 declaration',
[60]: "'for-%0' loop head declarations can not have an initializer",
[61]: 'Invalid left-hand side in for-%0 loop: Must have a single binding',
[62]: 'Invalid shorthand property initializer',
[63]: 'Property name __proto__ appears more than once in object literal',
[64]: 'Let is disallowed as a lexically bound name',
[65]: "Invalid use of '%0' inside new expression",
[66]: "Illegal 'use strict' directive in function with non-simple parameter list",
[67]: 'Identifier "let" disallowed as left-hand side expression in strict mode',
[68]: 'Illegal continue statement',
[69]: 'Illegal break statement',
[70]: 'Cannot have `let[...]` as a var name in strict mode',
[71]: 'Invalid destructuring assignment target',
[72]: 'Rest parameter may not have a default initializer',
[73]: 'The rest argument must the be last parameter',
[74]: 'Invalid rest argument',
[76]: 'In strict mode code, functions can only be declared at top level or inside a block',
[77]: 'In non-strict mode code, functions can only be declared at top level, inside a block, or as the body of an if statement',
[78]: 'Without web compatibility enabled functions can not be declared at top level, inside a block, or as the body of an if statement',
[79]: "Class declaration can't appear in single-statement context",
[80]: 'Invalid left-hand side in for-%0',
[81]: 'Invalid assignment in for-%0',
[82]: 'for await (... of ...) is only valid in async functions and async generators',
[83]: 'The first token after the template expression should be a continuation of the template',
[85]: '`let` declaration not allowed here and `let` cannot be a regular var name in strict mode',
[84]: '`let \n [` is a restricted production at the start of a statement',
[86]: 'Catch clause requires exactly one parameter, not more (and no trailing comma)',
[87]: 'Catch clause parameter does not support default values',
[88]: 'Missing catch or finally after try',
[89]: 'More than one default clause in switch statement',
[90]: 'Illegal newline after throw',
[91]: 'Strict mode code may not include a with statement',
[92]: 'Illegal return statement',
[93]: 'The left hand side of the for-header binding declaration is not destructible',
[94]: 'new.target only allowed within functions or static blocks',
[96]: "'#' not followed by identifier",
[102]: 'Invalid keyword',
[101]: "Can not use 'let' as a class name",
[100]: "'A lexical declaration can't define a 'let' binding",
[99]: 'Can not use `let` as variable name in strict mode',
[97]: "'%0' may not be used as an identifier in this context",
[98]: 'Await is only valid in async functions',
[103]: 'The %0 keyword can only be used with the module goal',
[104]: 'Unicode codepoint must not be greater than 0x10FFFF',
[105]: '%0 source must be string',
[106]: 'Only a identifier or string can be used to indicate alias',
[107]: "Only '*' or '{...}' can be imported after default",
[108]: 'Trailing decorator may be followed by method',
[109]: "Decorators can't be used with a constructor",
[110]: 'Can not use `await` as identifier in module or async func',
[111]: 'Can not use `await` as identifier in module',
[112]: 'HTML comments are only allowed with web compatibility (Annex B)',
[113]: "The identifier 'let' must not be in expression position in strict mode",
[114]: 'Cannot assign to `eval` and `arguments` in strict mode',
[115]: "The left-hand side of a for-of loop may not start with 'let'",
[116]: 'Block body arrows can not be immediately invoked without a group',
[117]: 'Block body arrows can not be immediately accessed without a group',
[118]: 'Unexpected strict mode reserved word',
[119]: 'Unexpected eval or arguments in strict mode',
[120]: 'Decorators must not be followed by a semicolon',
[121]: 'Calling delete on expression not allowed in strict mode',
[122]: 'Pattern can not have a tail',
[124]: 'Can not have a `yield` expression on the left side of a ternary',
[125]: 'An arrow function can not have a postfix update operator',
[126]: 'Invalid object literal key character after generator star',
[127]: 'Private fields can not be deleted',
[129]: 'Classes may not have a field called constructor',
[128]: 'Classes may not have a private element named constructor',
[130]: 'A class field initializer or static block may not contain arguments',
[131]: 'Generators can only be declared at the top level or inside a block',
[132]: 'Async methods are a restricted production and cannot have a newline following it',
[133]: 'Unexpected character after object literal property name',
[135]: 'Invalid key token',
[136]: "Label '%0' has already been declared",
[137]: 'continue statement must be nested within an iteration statement',
[138]: "Undefined label '%0'",
[139]: 'Trailing comma is disallowed inside import(...) arguments',
[140]: 'Invalid binding in JSON import',
[141]: 'import() requires exactly one argument',
[142]: 'Cannot use new with import(...)',
[143]: '... is not allowed in import()',
[144]: "Expected '=>'",
[145]: "Duplicate binding '%0'",
[146]: 'Duplicate private identifier #%0',
[147]: "Cannot export a duplicate name '%0'",
[150]: 'Duplicate %0 for-binding',
[148]: "Exported binding '%0' needs to refer to a top-level declared variable",
[149]: 'Unexpected private field',
[153]: 'Numeric separators are not allowed at the end of numeric literals',
[152]: 'Only one underscore is allowed as numeric separator',
[154]: 'JSX value should be either an expression or a quoted JSX text',
[155]: 'Expected corresponding JSX closing tag for %0',
[156]: 'Adjacent JSX elements must be wrapped in an enclosing tag',
[157]: "JSX attributes must only be assigned a non-empty 'expression'",
[158]: "'%0' has already been declared",
[159]: "'%0' shadowed a catch clause binding",
[160]: 'Dot property must be an identifier',
[161]: 'Encountered invalid input after spread/rest argument',
[162]: 'Catch without try',
[163]: 'Finally without try',
[164]: 'Expected corresponding closing tag for JSX fragment',
[165]: 'Coalescing and logical operators used together in the same expression must be disambiguated with parentheses',
[166]: 'Invalid tagged template on optional chain',
[167]: 'Invalid optional chain from super property',
[168]: 'Invalid optional chain from new expression',
[169]: 'Cannot use "import.meta" outside a module',
[170]: 'Leading decorators must be attached to a class declaration',
[171]: 'An export name cannot include a lone surrogate, found %0',
[172]: 'A string literal cannot be used as an exported binding without `from`',
[173]: "Private fields can't be accessed on super",
[174]: "The only valid meta property for import is 'import.meta'",
[175]: "'import.meta' must not contain escaped characters",
[176]: 'cannot use "await" as identifier inside an async function',
[177]: 'cannot use "await" in static blocks',
};
class ParseError extends SyntaxError {
start;
end;
range;
loc;
description;
constructor(start, end, type, ...params) {
const description = errorMessages[type].replace(/%(\d+)/g, (_, i) => params[i]);
const message = '[' + start.line + ':' + start.column + '-' + end.line + ':' + end.column + ']: ' + description;
super(message);
this.start = start.index;
this.end = end.index;
this.range = [start.index, end.index];
this.loc = {
start: { line: start.line, column: start.column },
end: { line: end.line, column: end.column },
};
this.description = description;
}
}
function scanNumber(parser, context, kind) {
let char = parser.currentChar;
let value = 0;
let digit = 9;
let atStart = kind & 64 ? 0 : 1;
let digits = 0;
let allowSeparator = 0;
if (kind & 64) {
value = '.' + scanDecimalDigitsOrSeparator(parser, char);
char = parser.currentChar;
if (char === 110)
parser.report(12);
}
else {
if (char === 48) {
char = advanceChar(parser);
if ((char | 32) === 120) {
kind = 8 | 128;
char = advanceChar(parser);
while (CharTypes[char] & (64 | 4096)) {
if (char === 95) {
if (!allowSeparator)
parser.report(152);
allowSeparator = 0;
char = advanceChar(parser);
continue;
}
allowSeparator = 1;
value = value * 0x10 + toHex(char);
digits++;
char = advanceChar(parser);
}
if (digits === 0 || !allowSeparator) {
parser.report(digits === 0 ? 21 : 153);
}
}
else if ((char | 32) === 111) {
kind = 4 | 128;
char = advanceChar(parser);
while (CharTypes[char] & (32 | 4096)) {
if (char === 95) {
if (!allowSeparator) {
parser.report(152);
}
allowSeparator = 0;
char = advanceChar(parser);
continue;
}