From f71f4905b004a559f0612e0e0928204f912a66bc Mon Sep 17 00:00:00 2001 From: "Alex Lam S.L" Date: Tue, 28 Mar 2017 17:08:16 +0800 Subject: [PATCH] fix `is_number()` on `+=` (#1714) fixes #1710 --- lib/compress.js | 4 ++-- test/compress/numbers.js | 15 +++++++++++++++ 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/lib/compress.js b/lib/compress.js index e4863d9f..c60f8632 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -1167,9 +1167,9 @@ merge(Compressor.prototype, { && this.left.is_number(compressor) && this.right.is_number(compressor); }); - var assign = makePredicate("-= *= /= %= &= |= ^= <<= >>= >>>="); def(AST_Assign, function(compressor){ - return assign(this.operator) || this.right.is_number(compressor); + return binary(this.operator.slice(0, -1)) + || this.operator == "=" && this.right.is_number(compressor); }); def(AST_Seq, function(compressor){ return this.cdr.is_number(compressor); diff --git a/test/compress/numbers.js b/test/compress/numbers.js index 0b40bb9c..ea439ecc 100644 --- a/test/compress/numbers.js +++ b/test/compress/numbers.js @@ -153,3 +153,18 @@ evaluate_4: { ); } } + +issue_1710: { + options = { + evaluate: true, + } + input: { + var x = {}; + console.log((x += 1) + -x); + } + expect: { + var x = {}; + console.log((x += 1) + -x); + } + expect_stdout: true +} -- 2.34.1