JS variable renaming breaks scripts #326
Description
minify triggers an Unexpected identifier syntax error with the code below...
var a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z;
var something = 42;
something++;
for (let i = 0; i < 10; i++) {
let badboy = 10;
badboy++;
}It results in...
var something=42,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a;something++;for(let a=0;a<10;a++)let b=10,b++Note that the variable a is both used in the var AND let scope and causes an syntax error (test it here)!
Or to put it into the tools own words:
ERROR: cannot minify /app/src/examplenew.js: unexpected b in expression on line 1 and column 107
1: ...omething++;for(let a=0;a<10;a++)let b=10,b++
When I don't mix var and let it works fine...
I must admit that we use this wonderful tool also at work and yeah... It broke our release version for about 10 minutes - very not good...