/*
* Copyright 2008 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.UnableToCompleteException;
import com.google.gwt.dev.jjs.ast.JMethod;
import com.google.gwt.dev.jjs.ast.JProgram;
/**
* Tests {@link PostOptimizationCompoundAssignmentNormalizer}.
*/
public class PostOptimizationCompoundAssignmentNormalizerTest
extends OptimizerTestBase {
public void testIntegralFloatCoercion() throws Exception {
// long op= float
optimize("void", "long x=2L; float d=3; x += d;").into(
"long x=2L; float d=3; x = (long)((float)x + d);");
// long op= long
optimize("void", "long x=2L; long d=3L; x += d;").into(
"long x=2L; long d=3L; x = x + d;");
// don't touch int op= int
optimize("void", "int x=2; int d=3; x += d;").into(
"int x=2; int d=3; x += d;");
// don't touch, integral types with lhs wider than rhs
optimize("void", "int x=2; short d=3; x += d;").into(
"int x=2; short d=3; x += d;");
// different integral types, but should narrow result
optimize("void", "int x=2; short d=3; d += x;").into(
"int x=2; short d=3; d = (short)(d + x);");
// integral with long, should break up
optimize("void", "int x=2; long d=3L; x += d;").into(
"int x=2; long d=3L; x = (int)((long)x + d);");
// integral with float
optimize("void", "int x=2; float d=3.0f; x += d;").into(
"int x=2; float d=3.0f; x = (int)(x + d);");
// integral with double
optimize("void", "int x=2; double d=3.0; x += d;").into(
"int x=2; double d=3.0; x = (int)(x + d);");
// float and double, don't touch
optimize("void", "float x=2; double d=3.0; x += d;").into(
"float x=2; double d=3.0; x += d;");
}
protected boolean optimizeMethod(JProgram program, JMethod method) {
PostOptimizationCompoundAssignmentNormalizer.exec(program);
LongCastNormalizer.exec(program);
return true;
}
}