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Unified Diff: node_modules/vulcanize/node_modules/uglify-js/test/compress/dead-code.js

Issue 800513006: Added vulcanize under third_party/npm_modules (Closed) Base URL: https://chromium.googlesource.com/infra/third_party/npm_modules.git@master
Patch Set: Created 6 years ago
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Index: node_modules/vulcanize/node_modules/uglify-js/test/compress/dead-code.js
diff --git a/node_modules/vulcanize/node_modules/uglify-js/test/compress/dead-code.js b/node_modules/vulcanize/node_modules/uglify-js/test/compress/dead-code.js
new file mode 100644
index 0000000000000000000000000000000000000000..0fd066eb297a334b10b340a5e309007f20320a67
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/uglify-js/test/compress/dead-code.js
@@ -0,0 +1,89 @@
+dead_code_1: {
+ options = {
+ dead_code: true
+ };
+ input: {
+ function f() {
+ a();
+ b();
+ x = 10;
+ return;
+ if (x) {
+ y();
+ }
+ }
+ }
+ expect: {
+ function f() {
+ a();
+ b();
+ x = 10;
+ return;
+ }
+ }
+}
+
+dead_code_2_should_warn: {
+ options = {
+ dead_code: true
+ };
+ input: {
+ function f() {
+ g();
+ x = 10;
+ throw "foo";
+ // completely discarding the `if` would introduce some
+ // bugs. UglifyJS v1 doesn't deal with this issue; in v2
+ // we copy any declarations to the upper scope.
+ if (x) {
+ y();
+ var x;
+ function g(){};
+ // but nested declarations should not be kept.
+ (function(){
+ var q;
+ function y(){};
+ })();
+ }
+ }
+ }
+ expect: {
+ function f() {
+ g();
+ x = 10;
+ throw "foo";
+ var x;
+ function g(){};
+ }
+ }
+}
+
+dead_code_constant_boolean_should_warn_more: {
+ options = {
+ dead_code : true,
+ loops : true,
+ booleans : true,
+ conditionals : true,
+ evaluate : true
+ };
+ input: {
+ while (!((foo && bar) || (x + "0"))) {
+ console.log("unreachable");
+ var foo;
+ function bar() {}
+ }
+ for (var x = 10; x && (y || x) && (!typeof x); ++x) {
+ asdf();
+ foo();
+ var moo;
+ }
+ }
+ expect: {
+ var foo;
+ function bar() {}
+ // nothing for the while
+ // as for the for, it should keep:
+ var x = 10;
+ var moo;
+ }
+}

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