diff options
Diffstat (limited to 'tools/js-optimizer.js')
| -rw-r--r-- | tools/js-optimizer.js | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js index f8d587db..c4afd4a7 100644 --- a/tools/js-optimizer.js +++ b/tools/js-optimizer.js @@ -1366,7 +1366,7 @@ function registerize(ast) { }); } -var ELIMINATION_SAFE_NODES = set('var', 'assign', 'call', 'if'); +var ELIMINATION_SAFE_NODES = set('var', 'assign', 'call', 'if', 'toplevel'); var NODES_WITHOUT_ELIMINATION_SIDE_EFFECTS = set('name', 'sname', 'num', 'string', 'binary', 'sub', 'unary-prefix'); function eliminate(ast) { @@ -1647,7 +1647,9 @@ function eliminate(ast) { if (!check(node[3])) { tracked = {}; continue; } // do not tolerate tryEliminate(node[3]); } - } else { // anything but if: var, assign, etc. + } else if (type == 'toplevel') { + if (node[1].length != 0) tracked = {}; // ['toplevel', []] is an empty node, anything else is dangerous + } else { // anything else: var, assign, etc. if (!check(node)) continue; tryEliminate(node); // apply invalidations from the check (after elimination - they affect the future, not the present) |