/*
* Copyright 2015 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;
import com.google.gwt.thirdparty.guava.common.base.Joiner;
/**
* Test for {@link ImplementJsVarargs}.
*/
public class ImplementJsVarargsTest extends OptimizerTestBase {
// TODO(rluble): add unit test for the rest of the functionality.
public void testOptimizedArguments_justPassThru() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(Object... obj) { n(obj); }",
" public static void n(Object... obj) { }",
"}");
Result result = optimize("void", "A.m();");
assertEquals(
Joiner.on('\n').join(
"public static void m(Object[] _arguments_){",
" EntryPoint$A.n(_arguments_);",
"}"), result.findMethod("test.EntryPoint$A.m([Ljava/lang/Object;)V").toSource());
}
public void testOptimizedArguments_onlyAccess() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(Object... obj) { n(obj[5], obj.length); }",
" public static void n(Object arg1, Object arg2) { }",
"}");
Result result = optimize("void", "A.m();");
assertEquals(
Joiner.on('\n').join(
"public static void m(Object[] _arguments_){",
" EntryPoint$A.n(_arguments_[5], Integer.valueOf(_arguments_.length));",
"}"), result.findMethod("test.EntryPoint$A.m([Ljava/lang/Object;)V").toSource());
}
public void testOptimizedArguments_offsetAccess() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(int i, Object... obj) { n(obj[5], obj.length); }",
" public static void n(Object arg1, Object arg2) { }",
"}");
Result result = optimize("void", "A.m(2);");
assertEquals(
Joiner.on('\n').join(
"public static void m(int i, Object[] _arguments_){",
" EntryPoint$A.n(_arguments_[5 + 1], Integer.valueOf(_arguments_.length - 1));",
"}"), result.findMethod("test.EntryPoint$A.m(I[Ljava/lang/Object;)V").toSource());
}
public void testOptimizedArguments_writeToArguments() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(Object... obj) { obj[5] = 1; }",
"}");
Result result = optimize("void", "A.m(2);");
assertEquals(
Joiner.on('\n').join(
"public static void m(Object[] _arguments_){",
" {",
" Object[] obj = new Object[][_arguments_.length];",
" for (int $i = 0; $i < _arguments_.length; $i++) {",
" obj[$i] = _arguments_[$i];",
" }",
" }",
" obj[5] = Integer.valueOf(1);",
"}"), result.findMethod("test.EntryPoint$A.m([Ljava/lang/Object;)V").toSource());
}
public void testOptimizedArguments_postIncrement() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(int... obj) { obj[5]++; }",
"}");
Result result = optimize("void", "A.m(2);");
assertEquals(
Joiner.on('\n').join(
"public static void m(int[] _arguments_){",
" {",
" int[] obj = new int[][_arguments_.length];",
" for (int $i = 0; $i < _arguments_.length; $i++) {",
" obj[$i] = _arguments_[$i];",
" }",
" }",
" obj[5]++;",
"}"), result.findMethod("test.EntryPoint$A.m([I)V").toSource());
}
public void testOptimizedArguments_preDecrement() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(int... obj) { --obj[5]; }",
"}");
Result result = optimize("void", "A.m(2);");
assertEquals(
Joiner.on('\n').join(
"public static void m(int[] _arguments_){",
" {",
" int[] obj = new int[][_arguments_.length];",
" for (int $i = 0; $i < _arguments_.length; $i++) {",
" obj[$i] = _arguments_[$i];",
" }",
" }",
" --obj[5];",
"}"), result.findMethod("test.EntryPoint$A.m([I)V").toSource());
}
public void testOptimizedArguments_call() throws Exception {
addSnippetImport("jsinterop.annotations.JsType");
addSnippetClassDecl(
"@JsType static class A {",
" public static void m(int... obj) { n(obj); }",
" public static void n(int[] obj) { }",
"}");
Result result = optimize("void", "A.m(2);");
assertEquals(
Joiner.on('\n').join(
"public static void m(int[] _arguments_){",
" {",
" int[] obj = new int[][_arguments_.length];",
" for (int $i = 0; $i < _arguments_.length; $i++) {",
" obj[$i] = _arguments_[$i];",
" }",
" }",
" EntryPoint$A.n(obj);",
"}"), result.findMethod("test.EntryPoint$A.m([I)V").toSource());
}
@Override
protected boolean doOptimizeMethod(TreeLogger logger, JProgram program, JMethod method) {
program.addEntryMethod(findMainMethod(program));
boolean didChange = true;
do {
didChange &= TypeTightener.exec(program).didChange();
didChange &= MethodCallTightener.exec(program).didChange();
} while (didChange);
ImplementJsVarargs.exec(program);
return true;
}
}