| /* |
| * Copyright 2014 Google Inc. |
| * |
| * 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.gwt.dev.jjs.impl; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.dev.jjs.ast.JMethod; |
| import com.google.gwt.dev.jjs.ast.JProgram; |
| |
| /** |
| * Tests for class {@link TypeCoercionNormalizer}. |
| */ |
| public class TypeCoercionNormalizerTest extends OptimizerTestBase { |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| runDeadCodeElimination = false; |
| } |
| |
| public void testCoerceChar_NonAssignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.Cast"); |
| optimize("void", "char c = 'a'; String a = \"a\" + c;").into( |
| "char c = 'a';", |
| "String a = \"a\" + Cast.charToString(c);" |
| ); |
| optimize("void", "char c = 'a'; String a = c + \"a\";").into( |
| "char c = 'a';", |
| "String a = Cast.charToString(c) + \"a\";" |
| ); |
| } |
| |
| public void testCoerceChar_Assignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.Cast"); |
| optimize("void", "char c = 'a'; String a = \"a\"; a += c ;").into( |
| "char c = 'a';", |
| "String a = \"a\";", |
| "a += Cast.charToString(c) ;" |
| ); |
| } |
| |
| public void testCoerceCharLiteral_NonAssignment() throws Exception { |
| optimize("void", "String a = \"a\" + 'b' ;").into("String a = \"a\" + \"b\" ;"); |
| |
| // Turn on dead code elimination to statically evaluate "b" + "a" to "ba" after coercion |
| // from 'b' to "b", because JDT will statically evaluate "b" + "a" on the right hand side. |
| runDeadCodeElimination = true; |
| optimize("void", "String a = 'b' + \"a\" ;").into("String a = \"b\" + \"a\";"); |
| } |
| |
| public void testCoerceCharLiteral_Assignment() throws Exception { |
| optimize("void", "String a = \"a\"; a += 'b' ;").into( |
| "String a = \"a\";", |
| "a += \"b\" ;" |
| ); |
| } |
| |
| public void testCoerceLong_NonAssignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.LongLib"); |
| |
| optimize("void", "long l = 1L; String a = \"a\"; a = a + l;").into( |
| "long l = 1L;", |
| "String a = \"a\";", |
| "a = a + LongLib.toString(l);" |
| ); |
| optimize("void", "long l = 1L; String a = \"a\"; a = l + a;").into( |
| "long l = 1L;", |
| "String a = \"a\";", |
| "a = LongLib.toString(l) + a;" |
| ); |
| } |
| |
| public void testCoerceLong_Assignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.LongLib"); |
| |
| optimize("void", "long l = 1L; String a = \"a\"; a += l;").into( |
| "long l = 1L;", |
| "String a = \"a\";", |
| "a += LongLib.toString(l);" |
| ); |
| } |
| |
| public void testCoerceLongLiteral_NonAssignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.LongLib"); |
| |
| optimize("void", "String a = \"a\"; a = a + 1L;").into( |
| "String a = \"a\";", |
| "a = a + \"1\";" |
| ); |
| optimize("void", "String a = \"a\"; a = 1L + a;").into( |
| "String a = \"a\";", |
| "a = \"1\" + a;" |
| ); |
| } |
| |
| public void testCoerceLongLiteral_Assignment() throws Exception { |
| addSnippetImport("com.google.gwt.lang.LongLib"); |
| |
| optimize("void", "String a = \"a\"; a += 1L ;").into( |
| "String a = \"a\";", |
| "a += \"1\";" |
| ); |
| } |
| |
| public void testDiv_NoRewrite() throws Exception { |
| optimize("void", "float a = 0.2f; double b = 3.1; double c = a / b;").into( |
| "float a = 0.2f;", |
| "double b = 3.1;", |
| "double c = a / b;" |
| ); |
| } |
| |
| public void testDiv_NarrowResult() throws Exception { |
| addSnippetImport("com.google.gwt.lang.Cast"); |
| |
| optimize("void", "long a = 2; byte b = 3; double c = a / b;").into( |
| "long a = 2;", |
| "byte b = 3;", |
| "double c = Cast.narrow_long(a / b);" |
| ); |
| optimize("void", "char a = 2; char b = 3; double c = a / b;").into( |
| "char a = 2;", |
| "char b = 3;", |
| "double c = Cast.narrow_int(a / b);" |
| ); |
| } |
| |
| @Override |
| protected boolean doOptimizeMethod(TreeLogger logger, JProgram program, JMethod method) { |
| TypeCoercionNormalizer.exec(program); |
| return true; |
| } |
| } |