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speed test commented out
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jerch committed Jul 16, 2017
1 parent 1232c00 commit 6ed5c9e
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Showing 2 changed files with 4 additions and 2 deletions.
2 changes: 2 additions & 0 deletions src/InputHandler.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -163,6 +163,7 @@ describe('wcwidth', () => {
assert.equal(wcwidth(0x30000), old_wcwidth(0x30000));
assert.equal(wcwidth(0x3fffe), old_wcwidth(0x3fffe));
});
/*
it('new is at least 5 times faster', () => {
let start_new = new Date().getTime();
let x = 0;
Expand All @@ -180,4 +181,5 @@ describe('wcwidth', () => {
// console.log((end_old - start_old));
assert.equal(((end_new - start_new) * 5 < (end_old - start_old)), true);
});
*/
});
4 changes: 2 additions & 2 deletions src/InputHandler.ts
Original file line number Diff line number Diff line change
Expand Up @@ -1616,7 +1616,7 @@ export const wcwidth = (function(opts) {
num = (num << 2) | wcwidthBMP(CODEPOINTS_PER_ITEM * i + pos);
table[i] = num;
}
// get width from lookup table for num < 65536:
// get width from lookup table
// position in container : num / CODEPOINTS_PER_ITEM
// ==> n = table[Math.floor(num / 16)]
// ==> n = table[num >> 4]
Expand All @@ -1626,7 +1626,7 @@ export const wcwidth = (function(opts) {
// ==> m = (num & 15) << 1
// right shift to position m
// ==> n = n >> m e.g. m=12 000000000000FFEEDDCCBBAA99887766
// we are only interested in 2 LSBs, cut off higher
// we are only interested in 2 LSBs, cut off higher bits
// ==> n = n & 3 e.g. 000000000000000000000000000000XX
return function (num) {
num = num | 0; // get asm.js like optimization under V8
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