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/*
* Copyright 2008 The Closure Compiler Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.javascript.jscomp;
/**
* Tests for {@link RenameLabels}.
*/
public class RenameLabelsTest extends CompilerTestCase {
@Override
protected CompilerPass getProcessor(Compiler compiler) {
return new RenameLabels(compiler);
}
public void testRenameInFunction() {
test("function x(){ Foo:a(); }",
"function x(){ a(); }");
test("function x(){ Foo:{ a(); break Foo; } }",
"function x(){ a:{ a(); break a; } }");
test("function x() { " +
"Foo:{ " +
"function goo() {" +
"Foo: {" +
"a(); " +
"break Foo; " +
"}" +
"}" +
"}" +
"}",
"function x(){function goo(){a:{ a(); break a; }}}");
test("function x() { " +
"Foo:{ " +
"function goo() {" +
"Foo: {" +
"a(); " +
"break Foo; " +
"}" +
"}" +
"break Foo;" +
"}" +
"}",
"function x(){a:{function goo(){a:{ a(); break a; }} break a;}}");
}
public void testRenameGlobals() {
test("Foo:{a();}",
"a();");
test("Foo:{a(); break Foo;}",
"a:{a(); break a;}");
test("Foo:{Goo:a(); break Foo;}",
"a:{a(); break a;}");
test("Foo:{Goo:while(1){a(); continue Goo; break Foo;}}",
"a:{b:while(1){a(); continue b;break a;}}");
test("Foo:Goo:while(1){a(); continue Goo; break Foo;}",
"a:b:while(1){a(); continue b;break a;}");
test("Foo:Bar:X:{ break Bar; }",
"a:{ break a; }");
test("Foo:Bar:X:{ break Bar; break X; }",
"a:b:{ break a; break b;}");
test("Foo:Bar:X:{ break Bar; break Foo; }",
"a:b:{ break b; break a;}");
test("Foo:while (1){a(); break;}",
"while (1){a(); break;}");
// Remove label that is not referenced.
test("Foo:{a(); while (1) break;}",
"a(); while (1) break;");
}
public void testRenameReused() {
test("foo:{break foo}; foo:{break foo}", "a:{break a};a:{break a}");
}
}
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