// result. hence, force switch.
reverse(null, true);
}
+ if (/^[!=]==?$/.test(self.operator)) {
+ if (self.left instanceof AST_SymbolRef && self.right instanceof AST_Conditional) {
+ if (self.right.consequent instanceof AST_SymbolRef
+ && self.right.consequent.definition() === self.left.definition()) {
+ if (/^==/.test(self.operator)) return self.right.condition;
+ if (/^!=/.test(self.operator)) return self.right.condition.negate(compressor);
+ }
+ if (self.right.alternative instanceof AST_SymbolRef
+ && self.right.alternative.definition() === self.left.definition()) {
+ if (/^==/.test(self.operator)) return self.right.condition.negate(compressor);
+ if (/^!=/.test(self.operator)) return self.right.condition;
+ }
+ }
+ if (self.right instanceof AST_SymbolRef && self.left instanceof AST_Conditional) {
+ if (self.left.consequent instanceof AST_SymbolRef
+ && self.left.consequent.definition() === self.right.definition()) {
+ if (/^==/.test(self.operator)) return self.left.condition;
+ if (/^!=/.test(self.operator)) return self.left.condition.negate(compressor);
+ }
+ if (self.left.alternative instanceof AST_SymbolRef
+ && self.left.alternative.definition() === self.right.definition()) {
+ if (/^==/.test(self.operator)) return self.left.condition.negate(compressor);
+ if (/^!=/.test(self.operator)) return self.left.condition;
+ }
+ }
+ }
}
self = self.lift_sequences(compressor);
if (compressor.option("comparisons")) switch (self.operator) {