Files
UglifyJS/test/compress/issue-1609.js
Alex Lam S.L ac40301813 fix chained evaluation (#1610)
`reduce_vars` enables substitution of variables but did not clone the value's `AST_Node`.

This confuses `collapse_vars` and result in invalid AST and subsequent crash.

fixes #1609
2017-03-17 00:26:48 +08:00

57 lines
1.1 KiB
JavaScript

chained_evaluation_1: {
options = {
collapse_vars: true,
evaluate: true,
reduce_vars: true,
unused: true,
}
input: {
(function() {
var a = 1;
(function() {
var b = a, c;
c = f(b);
c.bar = b;
})();
})();
}
expect: {
(function() {
(function() {
var c;
c = f(1);
c.bar = 1;
})();
})();
}
}
chained_evaluation_2: {
options = {
collapse_vars: true,
evaluate: true,
reduce_vars: true,
unused: true,
}
input: {
(function() {
var a = "long piece of string";
(function() {
var b = a, c;
c = f(b);
c.bar = b;
})();
})();
}
expect: {
(function() {
var a = "long piece of string";
(function() {
var c;
c = f(a);
c.bar = a;
})();
})();
}
}