speed up collapse_vars (#3119)

2018-05-04 18:38:13 +08:00
parent c4cebb4b01
commit d835c72c80
1 changed files with 3 additions and 5 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1062,9 +1062,11 @@ merge(Compressor.prototype, {
                    if (is_lhs(node, parent)) {
                        if (value_def) replaced++;
                        return node;
+                    } else {
+                        replaced++;
+                        if (value_def && candidate instanceof AST_VarDef) return node;
                    }
                    CHANGED = abort = true;
-                    replaced++;
                    compressor.info("Collapsing {name} [{file}:{line},{col}]", {
                        name: node.print_to_string(),
                        file: node.start.file,
@@ -1075,10 +1077,6 @@ merge(Compressor.prototype, {
                        return make_node(AST_UnaryPrefix, candidate, candidate);
                    }
                    if (candidate instanceof AST_VarDef) {
-                        if (value_def) {
-                            abort = false;
-                            return node;
-                        }
                        var def = candidate.name.definition();
                        if (def.references.length - def.replaced == 1 && !compressor.exposed(def)) {
                            def.replaced++;