Remove modules from source

This commit is contained in:
Federico Grandi
2019-12-14 21:58:11 +01:00
parent f118062594
commit e5272e4c09
4269 changed files with 0 additions and 1074858 deletions

View File

@@ -1,61 +0,0 @@
"use strict";
module.exports = function ({
types: t
}) {
const isVoid0 = require("babel-helper-is-void-0")(t);
return {
name: "minify-flip-comparisons",
visitor: {
// flip comparisons with a pure right hand value, this ensures
// consistency with comparisons and increases the length of
// strings that gzip can match
// typeof blah === 'function' -> 'function' === typeof blah
BinaryExpression(path) {
const node = path.node;
const right = node.right,
left = node.left; // Make sure we have a constant on the right.
if (!t.isLiteral(right) && !isVoid0(right) && !(t.isUnaryExpression(right) && t.isLiteral(right.argument)) && !t.isObjectExpression(right) && !t.isArrayExpression(right)) {
return;
} // Commutative operators.
if (t.EQUALITY_BINARY_OPERATORS.indexOf(node.operator) >= 0 || ["*", "^", "&", "|"].indexOf(node.operator) >= 0) {
node.left = right;
node.right = left;
return;
}
if (t.BOOLEAN_NUMBER_BINARY_OPERATORS.indexOf(node.operator) >= 0) {
node.left = right;
node.right = left;
let operator;
switch (node.operator) {
case ">":
operator = "<";
break;
case "<":
operator = ">";
break;
case ">=":
operator = "<=";
break;
case "<=":
operator = ">=";
break;
}
node.operator = operator;
return;
}
}
}
};
};