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Don't replace undefined, NaN and Infinity within with scope

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This commit is contained in:
kzc
2016-06-18 23:06:59 -04:00
committed by Richard van Velzen
parent 85fbf86d7b
commit 0c003c92a8
2 changed files with 133 additions and 31 deletions
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69
lib/compress.js
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@@ -1056,31 +1056,37 @@ merge(Compressor.prototype, {
throw def;
});
def(AST_Binary, function(c){
var left = this.left, right = this.right;
var left = this.left, right = this.right, result;
switch (this.operator) {
case "&&" : return ev(left, c) && ev(right, c);
case "||" : return ev(left, c) || ev(right, c);
case "|" : return ev(left, c) | ev(right, c);
case "&" : return ev(left, c) & ev(right, c);
case "^" : return ev(left, c) ^ ev(right, c);
case "+" : return ev(left, c) + ev(right, c);
case "*" : return ev(left, c) * ev(right, c);
case "/" : return ev(left, c) / ev(right, c);
case "%" : return ev(left, c) % ev(right, c);
case "-" : return ev(left, c) - ev(right, c);
case "<<" : return ev(left, c) << ev(right, c);
case ">>" : return ev(left, c) >> ev(right, c);
case ">>>" : return ev(left, c) >>> ev(right, c);
case "==" : return ev(left, c) == ev(right, c);
case "===" : return ev(left, c) === ev(right, c);
case "!=" : return ev(left, c) != ev(right, c);
case "!==" : return ev(left, c) !== ev(right, c);
case "<" : return ev(left, c) < ev(right, c);
case "<=" : return ev(left, c) <= ev(right, c);
case ">" : return ev(left, c) > ev(right, c);
case ">=" : return ev(left, c) >= ev(right, c);
case "&&" : result = ev(left, c) && ev(right, c); break;
case "||" : result = ev(left, c) || ev(right, c); break;
case "|" : result = ev(left, c) | ev(right, c); break;
case "&" : result = ev(left, c) & ev(right, c); break;
case "^" : result = ev(left, c) ^ ev(right, c); break;
case "+" : result = ev(left, c) + ev(right, c); break;
case "*" : result = ev(left, c) * ev(right, c); break;
case "/" : result = ev(left, c) / ev(right, c); break;
case "%" : result = ev(left, c) % ev(right, c); break;
case "-" : result = ev(left, c) - ev(right, c); break;
case "<<" : result = ev(left, c) << ev(right, c); break;
case ">>" : result = ev(left, c) >> ev(right, c); break;
case ">>>" : result = ev(left, c) >>> ev(right, c); break;
case "==" : result = ev(left, c) == ev(right, c); break;
case "===" : result = ev(left, c) === ev(right, c); break;
case "!=" : result = ev(left, c) != ev(right, c); break;
case "!==" : result = ev(left, c) !== ev(right, c); break;
case "<" : result = ev(left, c) < ev(right, c); break;
case "<=" : result = ev(left, c) <= ev(right, c); break;
case ">" : result = ev(left, c) > ev(right, c); break;
case ">=" : result = ev(left, c) >= ev(right, c); break;
default:
throw def;
}
throw def;
if (isNaN(result) && c.find_parent(AST_With)) {
// leave original expression as is
throw def;
}
return result;
});
def(AST_Conditional, function(compressor){
return ev(this.condition, compressor)
@@ -2599,13 +2605,16 @@ merge(Compressor.prototype, {
if (defines && HOP(defines, self.name)) {
return make_node_from_constant(compressor, defines[self.name], self);
}
switch (self.name) {
case "undefined":
return make_node(AST_Undefined, self);
case "NaN":
return make_node(AST_NaN, self).transform(compressor);
case "Infinity":
return make_node(AST_Infinity, self).transform(compressor);
// testing against !self.scope.uses_with first is an optimization
if (!self.scope.uses_with || !compressor.find_parent(AST_With)) {
switch (self.name) {
case "undefined":
return make_node(AST_Undefined, self);
case "NaN":
return make_node(AST_NaN, self).transform(compressor);
case "Infinity":
return make_node(AST_Infinity, self).transform(compressor);
}
}
}
return self;