JoBoEVD/UglifyJS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

suppress false positives from fuzzer (#3638)

Browse Source
This commit is contained in:
Alex Lam S.L
2019-12-16 17:32:47 +02:00
committed by GitHub
parent 74396acc86
commit 3ff0feddee
2 changed files with 35 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
test/ufuzz/index.js
View File

@@ -1089,6 +1089,19 @@ function log(options) {
}
}
function fuzzy_match(original, uglified) {
original = original.split(" ", 5);
uglified = uglified.split(" ", 5);
for (var i = 0; i < 5; i++) {
if (original[i] === uglified[i]) continue;
var a = +original[i];
var b = +uglified[i];
if (Math.abs((b - a) / a) < 1e-10) continue;
return false;
}
return true;
}
var fallback_options = [ JSON.stringify({
compress: false,
mangle: false
@@ -1111,8 +1124,12 @@ for (var round = 1; round <= num_iterations; round++) {
uglify_code = uglify_code.code;
uglify_result = sandbox.run_code(uglify_code, o.toplevel);
ok = sandbox.same_stdout(original_result, uglify_result);
if (!ok && o.compress.unsafe_math) {
ok = sandbox.same_stdout(sandbox.run_code(original_code.replace(/( - 0\.1){3}/g, " - 0.3")), uglify_result, o.toplevel);
if (!ok && typeof uglify_result == "string" && o.compress.unsafe_math) {
ok = fuzzy_match(original_result, uglify_result);
if (!ok) {
var fuzzy_result = sandbox.run_code(original_code.replace(/( - 0\.1){3}/g, " - 0.3"));
ok = sandbox.same_stdout(fuzzy_result, uglify_result, o.toplevel);
}
}
} else {
uglify_code = uglify_code.error;