/*
* Copyright (c) 2012, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
*
* 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.dart.java2dart;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableMap;
import com.google.dart.engine.ast.AstNode;
import com.google.dart.engine.ast.CompilationUnit;
import com.google.dart.engine.utilities.io.PrintStringWriter;
import com.google.dart.java2dart.util.ToFormattedSourceVisitor;
import org.apache.commons.lang3.StringUtils;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTParser;
import static org.fest.assertions.Assertions.assertThat;
/**
* Test for {@link SyntaxTranslator}.
*/
public class SyntaxTranslatorTest extends AbstractSemanticTest {
/**
* @return the formatted Dart source dump of the given {@link AstNode}.
*/
private static String toFormattedSource(AstNode node) {
PrintStringWriter writer = new PrintStringWriter();
node.accept(new ToFormattedSourceVisitor(writer));
String result = writer.toString();
return StringUtils.join(StringUtils.split(result, '\n'), "\n");
}
private Context context = new Context();
private String javaSource;
private org.eclipse.jdt.core.dom.CompilationUnit javaUnit;
private com.google.dart.engine.ast.CompilationUnit dartUnit;
public void test_annotation_marker() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public @interface DartOmit {",
"}",
"public class A {",
" @DartOmit",
" public void foo() {}",
" public void var() {}",
"}");
translate();
String actual = context.getNodeAnnotations().toString();
assertEquals("{void foo() {}=[DartOmit{}]}", actual);
}
public void test_annotation_normal() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public @interface DartLibrary {",
" String name();",
" String path();",
"}",
"public class A {",
" @DartLibrary(name = \"my.name\", path = \"my/path\")",
" public void foo() {}",
" public void var() {}",
"}");
translate();
String actual = context.getNodeAnnotations().toString();
assertEquals("{void foo() {}=[DartLibrary{name=my.name, path=my/path}]}", actual);
}
public void test_annotation_single() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public @interface DartBlockBody {",
" String[] value();",
"}",
"public class A {",
" @DartBlockBody({\"aaa\", \"bbb\", \"ccc\"})",
" public void foo() {}",
" public void var() {}",
"}");
translate();
String actual = context.getNodeAnnotations().toString();
assertEquals("{void foo() {}=[DartBlockBody{value=[aaa, bbb, ccc]}]}", actual);
}
public void test_classAbstract() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public abstract class A {",
"}");
assertDartSource(//
"abstract class A {",
"}");
}
public void test_classEmpty() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
"}");
assertDartSource(//
"class A {",
"}");
}
public void test_classExtends() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
"}",
"public class B extends A {",
"}",
"");
assertDartSource(//
"class A {",
"}",
"class B extends A {",
"}");
}
public void test_classImplements() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public interface I1 {}",
"public interface I2 {}",
"public interface I3 {}",
"public class B implements I1, I2, I3 {",
"}",
"");
assertDartSource(
"abstract class I1 {",
"}",
"abstract class I2 {",
"}",
"abstract class I3 {",
"}",
"class B implements I1, I2, I3 {",
"}");
}
public void test_classTypeArguments_Void() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class Test<T> {",
" void main() {",
" new Test<Void>();",
" }",
"}");
assertDartSource(//
"class Test<T> {",
" void main() {",
" new Test<Object>();",
" }",
"}");
}
public void test_classTypeParameters() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A<K, V extends String> {",
" void test(K k, V v) {",
" }",
"}");
assertDartSource(//
"class A<K, V extends String> {",
" void test(K k, V v) {",
" }",
"}");
}
public void test_commentDoc_class() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"/**",
" * Some comment.",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * Some comment.",
" */",
"class A {",
"}");
}
public void test_commentDoc_escaping() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"/**",
" * Some [ident] ignored.",
" * Second line.",
" */",
"public class A {",
"}");
assertDartSource("/**", " * Some [ident] ignored.", " * Second line.", " */", "class A {", "}");
}
public void test_commentDoc_field() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" /**",
" * Some comment.",
" */",
" int foo;",
"}");
assertDartSource(//
"class A {",
" /**",
" * Some comment.",
" */",
" int foo;",
"}");
}
public void test_commentDoc_method() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" /**",
" * Some comment.",
" */",
" void foo() {}",
"}");
assertDartSource(
"class A {",
" /**",
" * Some comment.",
" */",
" void foo() {",
" }",
"}");
}
public void test_commentLine_beforeStatement_blockStyle() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void main() {",
" /*",
" * aaa",
" * bbb",
" */",
" int v = 0;",
" }",
"}");
assertDartSource(
"class A {",
" void main() {",
" /*",
" * aaa",
" * bbb",
" */",
" int v = 0;",
" }",
"}");
}
public void test_commentLine_beforeStatement_lineStyle() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void main() {",
" // aaa",
" // bbb",
" int v = 0;",
" }",
"}");
assertDartSource(
"class A {",
" void main() {",
" // aaa",
" // bbb",
" int v = 0;",
" }",
"}");
}
public void test_commentLine_endOfBlock_blockStyle() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void main() {",
" // aaa",
" int v = 0;",
" /*",
" * aaa",
" * bbb",
" */",
" }",
"}");
assertDartSource(
"class A {",
" void main() {",
" // aaa",
" int v = 0;",
" /*",
" * aaa",
" * bbb",
" */",
" }",
"}");
}
public void test_commentLine_endOfBlock_lineStyle() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void main() {",
" // aaa",
" int v = 0;",
" if (true) {",
" // bbb",
" } else {",
" // ccc",
" }",
" // ddd",
" // eee",
" }",
"}");
assertDartSource(
"class A {",
" void main() {",
" // aaa",
" int v = 0;",
" if (true) {",
" // bbb",
" } else {",
" // ccc",
" }",
" // ddd",
" // eee",
" }",
"}");
}
public void test_constructor() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" A() {",
" print(0);",
" }",
" A(int p) {",
" print(1);",
" }",
"}");
assertDartSource(
"class A {",
" A.jtd_constructor_0_decl() {",
" print(0);",
" }",
" A.jtd_constructor_1_decl(int p) {",
" print(1);",
" }",
"}");
}
public void test_enum_withImplements() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public interface I {}",
"public enum Direction implements I {",
"}");
assertDartSource(
"abstract class I {",
"}",
"class Direction extends Enum<Direction> implements I {",
" static const List<Direction> values = const [];",
" const Direction.jtd_constructor_0_decl(String name, int ordinal) : super(name, ordinal) {",
" }",
"}");
}
public void test_expression_equals() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" boolean testObject(Object a, Object b) {",
" return a == b;",
" }",
" boolean testNull(Object p) {",
" return p == null;",
" }",
" boolean testBool(Object p) {",
" return p == true;",
" }",
" boolean testChar(Object p) {",
" return p == '0';",
" }",
" boolean testByte(Object p) {",
" return p == (byte) 1;",
" }",
" boolean testInt(Object p) {",
" return p == 2;",
" }",
" boolean testLong(Object p) {",
" return p == 3L;",
" }",
" boolean testFloat(Object p) {",
" return p == 4.0f;",
" }",
" boolean testDouble(Object p) {",
" return p == 5.0d;",
" }",
"}");
assertDartSource(
"class A {",
" bool testObject(Object a, Object b) => identical(a, b);",
" bool testNull(Object p) => p == null;",
" bool testBool(Object p) => p == true;",
" bool testChar(Object p) => p == 0x30;",
" bool testByte(Object p) => p == 1;",
" bool testInt(Object p) => p == 2;",
" bool testLong(Object p) => p == 3;",
" bool testFloat(Object p) => p == 4.0;",
" bool testDouble(Object p) => p == 5.0;",
"}");
}
public void test_expression_instanceOf() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(Object p) {",
" boolean b1 = p instanceof String;",
" boolean b2 = !(p instanceof String);",
" }",
"}");
assertDartSource(//
"class A {",
" void test(Object p) {",
" bool b1 = p is String;",
" bool b2 = !(p is String);",
" }",
"}");
}
public void test_expression_notEquals() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" boolean testA(Object a, Object b) {",
" return a != b;",
" }",
" boolean testB(Object p) {",
" return p != null || p != 1 || p != 2L || p != 3.0f || p != 4.0d;",
" }",
"}");
assertDartSource(
"class A {",
" bool testA(Object a, Object b) => !identical(a, b);",
" bool testB(Object p) => p != null || p != 1 || p != 2 || p != 3.0 || p != 4.0;",
"}");
}
public void test_expressionArrayAccess() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(String[] items) {",
" print(items[0]);",
" }",
"}");
assertDartSource(//
"class A {",
" void test(List<String> items) {",
" print(items[0]);",
" }",
"}");
}
public void test_expressionArrayCreation_dimensionOne() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" Object v = new int[] {1, 2, 3};",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" Object v = <int> [1, 2, 3];",
" }",
"}");
}
public void test_expressionArrayCreation_dimensionTwo() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" Object v = new int[][] {new int[] {1, 2, 3}, new int[] {10, 20, 30}};",
" }",
"}");
assertDartSource(
"class A {",
" void test() {",
" Object v = <List<int>> [<int> [1, 2, 3], <int> [10, 20, 30]];",
" }",
"}");
}
public void test_expressionArrayCreation_noInitializer() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" String[] v = new String[3];",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" List<String> v = new List<String>(3);",
" }",
"}");
}
public void test_expressionArrayInitializer() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int[] v = {1, 2, 3};",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" List<int> v = [1, 2, 3];",
" }",
"}");
}
public void test_expressionAssignment() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v;",
" v = 1;",
" v += 1;",
" v -= 1;",
" v *= 1;",
" v /= 1;",
" v %= 1;",
" v ^= 1;",
" v |= 1;",
" v &= 1;",
" v <<= 1;",
" v >>= 1;",
" }",
"}");
assertDartSource(
"class A {",
" void test() {",
" int v;",
" v = 1;",
" v += 1;",
" v -= 1;",
" v *= 1;",
" v /= 1;",
" v %= 1;",
" v ^= 1;",
" v |= 1;",
" v &= 1;",
" v <<= 1;",
" v >>= 1;",
" }",
"}");
}
public void test_expressionCast() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class Test {",
" void main(Object p) {",
" print((Integer) p);",
" }",
"}");
assertDartSource(//
"class Test {",
" void main(Object p) {",
" print((p as int));",
" }",
"}");
}
public void test_expressionCast_toByte() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class Test {",
" void main(Object p) {",
" print((byte) p);",
" print((byte) 2);",
" print((byte) 256);",
" print((byte) 257);",
" }",
"}");
assertDartSource(//
"class Test {",
" void main(Object p) {",
" print(toByte(p));",
" print(2);",
" print(0);",
" print(1);",
" }",
"}");
}
public void test_expressionClassInstanceCreation() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(int p) {",
" }",
" void foo() {",
" new A(123);",
" }",
"}");
assertDartSource(//
"class A {",
" void test(int p) {",
" }",
" void foo() {",
" new A(123);",
" }",
"}");
}
public void test_expressionClassInstanceCreation_typeArguments() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A<K, V> {",
"}",
"public class B {",
" void test() {",
" new A<String, B>();",
" }",
"}",
"");
assertDartSource(//
"class A<K, V> {",
"}",
"class B {",
" void test() {",
" new A<String, B>();",
" }",
"}");
}
public void test_expressionConditional() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v = true ? 1 : 2;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int v = true ? 1 : 2;",
" }",
"}");
}
public void test_expressionFieldAccess_thisQualifier() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" int field;",
" test() {",
" print(this.field);",
" }",
"}");
assertDartSource(//
"class A {",
" int field;",
" test() {",
" print(this.field);",
" }",
"}");
}
public void test_expressionInfix() throws Exception {
setFileLines(
"test/Test.java",
toString(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" public void test() {",
" int m1 = 0 + 1;",
" int m2 = 0 - 1;",
" int m3 = 0 * 1;",
" int m4 = 0 / 1;",
" int m5 = 0.0 / 1;",
" int m6 = 0 / 1.0;",
" int m7 = 0 % 1;",
" int s1 = 0 << 1;",
" int s2 = 0 >> 1;",
" int s3 = 0 >>> 1;",
" boolean c1 = false || true;",
" boolean c2 = false && true;",
" int b1 = 0 ^ 1;",
" int b2 = 0 | 1;",
" int b3 = 0 & 1;",
" boolean r1 = 0 < 1;",
" boolean r2 = 0 > 1;",
" boolean r3 = 0 <= 1;",
" boolean r4 = 0 >= 1;",
" boolean r5 = 0 == 1;",
" boolean r6 = 0 != 1;",
" }",
"}"));
Context context = new Context();
context.addSourceFolder(tmpFolder);
context.addSourceFiles(tmpFolder);
// do translate
CompilationUnit unit = context.translate();
assertEquals(
toString(
"class A {",
" void test() {",
" int m1 = 0 + 1;",
" int m2 = 0 - 1;",
" int m3 = 0 * 1;",
" int m4 = 0 ~/ 1;",
" int m5 = 0.0 / 1;",
" int m6 = 0 / 1.0;",
" int m7 = 0 % 1;",
" int s1 = 0 << 1;",
" int s2 = 0 >> 1;",
" int s3 = 0 >> 1;",
" bool c1 = false || true;",
" bool c2 = false && true;",
" int b1 = 0 ^ 1;",
" int b2 = 0 | 1;",
" int b3 = 0 & 1;",
" bool r1 = 0 < 1;",
" bool r2 = 0 > 1;",
" bool r3 = 0 <= 1;",
" bool r4 = 0 >= 1;",
" bool r5 = 0 == 1;",
" bool r6 = 0 != 1;",
" }",
"}"),
getFormattedSource(unit));
}
public void test_expressionInfix_multipleOperands() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v = 0 + 1 + 2 + 3 + 4;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int v = 0 + 1 + 2 + 3 + 4;",
" }",
"}");
}
public void test_expressionInvocation_qualified() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" this.foo(0);",
" }",
" void foo(int p) {}",
"}");
assertDartSource(//
"class A {",
" void test() {",
" this.foo(0);",
" }",
" void foo(int p) {",
" }",
"}");
}
public void test_expressionInvocation_unqualified() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(0);",
" print(1);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(0);",
" print(1);",
" }",
"}");
}
public void test_expressionParenthesized() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v = (1 + 3) / 2;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int v = (1 + 3) / 2;",
" }",
"}");
}
public void test_expressionPostfix() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v = 0;",
" int v1 = v++;",
" int v2 = v--;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int v = 0;",
" int v1 = v++;",
" int v2 = v--;",
" }",
"}");
}
public void test_expressionPrefix() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int v1 = +0;",
" int v2 = -0;",
" int v3 = ~0;",
" int v4 = !0;",
" int v5 = ++v1;",
" int v6 = --v1;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int v1 = 0;",
" int v2 = -0;",
" int v3 = ~0;",
" int v4 = !0;",
" int v5 = ++v1;",
" int v6 = --v1;",
" }",
"}");
}
public void test_expressionQualifiedName_forField() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" int field;",
"}",
"public class B {",
" void test(A a) {",
" print(a.field);",
" }",
"}");
assertDartSource(//
"class A {",
" int field;",
"}",
"class B {",
" void test(A a) {",
" print(a.field);",
" }",
"}");
}
public void test_expressionThis() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(this);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(this);",
" }",
"}");
}
public void test_expressionThrow() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" throw new Exception();",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" throw new Exception();",
" }",
"}");
}
public void test_expressionTypeLiteral() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(A.class);",
" print(my.company.project.A.class);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(A);",
" print(my.company.project.A);",
" }",
"}");
}
public void test_field() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" int field;",
" int f1 = 1, f2 = 2;",
"}");
assertDartSource(//
"class A {",
" int field;",
" int f1 = 1, f2 = 2;",
"}");
}
public void test_interface() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"interface A {",
" int VALUE = 42;",
" int foo();",
" void bar();",
"}");
assertDartSource(//
"abstract class A {",
" static final int VALUE = 42;",
" int foo();",
" void bar();",
"}");
}
public void test_javadoc_code() throws Exception {
parseJava(//
"/**",
" * aaa {@code fooBar} bbb",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * aaa `fooBar` bbb",
" */",
"class A {",
"}");
}
public void test_javadoc_li() throws Exception {
parseJava(//
"/**",
" * <ul>",
" * <li>foo bar",
" * </ul>",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * * foo bar",
" */",
"class A {",
"}");
}
public void test_javadoc_link() throws Exception {
parseJava(//
"/**",
" * {@link #fooBar()}",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * [fooBar]",
" */",
"class A {",
"}");
}
public void test_javadoc_multiLine() throws Exception {
parseJava(//
"/**",
" * aaa bbb",
" * {@link Source} ccc",
" * ddd",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * aaa bbb",
" * [Source] ccc",
" * ddd",
" */",
"class A {",
"}");
}
public void test_javadoc_namedLink() throws Exception {
parseJava(//
"/**",
" * {@link Source source}",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" * [Source]",
" */",
"class A {",
"}");
}
public void test_javadoc_para() throws Exception {
parseJava(//
"/**",
" * <p>",
" */",
"public class A {",
"}");
assertDartSource(//
"/**",
" *",
" */",
"class A {",
"}");
}
public void test_literalBoolean() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(true);",
" print(false);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(true);",
" print(false);",
" }",
"}");
}
public void test_literalCharacter() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" char c = '0';",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int c = 0x30;",
" }",
"}"
);
}
public void test_literalDouble() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(0.0);",
" print(1d);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(0.0);",
" print(1.0);",
" }",
"}");
}
public void test_literalInt() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(0);",
" print(1);",
" print(0xDEAD);",
" print(0xBEAF);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(0);",
" print(1);",
" print(0xDEAD);",
" print(0xBEAF);",
" }",
"}");
}
public void test_literalLong() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(0l);",
" print(1L);",
" print(0xDEADl);",
" print(0xBEAFL);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(0);",
" print(1);",
" print(0xDEAD);",
" print(0xBEAF);",
" }",
"}");
}
public void test_literalNull() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(null);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(null);",
" }",
"}");
}
public void test_literalString() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(\"abc\");",
" print(\"a'b\");",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(\"abc\");",
" print(\"a'b\");",
" }",
"}");
}
public void test_literalString_escapeInterpolation() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(\"a$b\");",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(\"a\\$b\");",
" }",
"}");
}
public void test_literalString_newLine() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(\"A\\nB\");",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(\"A\\nB\");",
" }",
"}");
}
public void test_methodEmpty() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" }",
"}");
}
public void test_methodParameters() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(boolean b, int i, double d, String s) {",
" }",
"}");
assertDartSource(//
"class A {",
" void test(bool b, int i, double d, String s) {",
" }",
"}");
}
public void test_methodReturnType() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void foo() {",
" }",
"}");
assertDartSource(//
"class A {",
" void foo() {",
" }",
"}");
}
/**
* We don't generate "final" because it is very hard to simulate Java constructors in Dart.
*/
public void test_modifiers_field() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" public int fPublic;",
" protected int fProtected;",
" int fDefault;",
" private int fPrivate;",
" final int fFinal;",
" static final int fStaticFinal;",
"}");
assertDartSource(//
"class A {",
" int fPublic;",
" int fProtected;",
" int fDefault;",
" int fPrivate;",
" int fFinal;",
" static int fStaticFinal;",
"}");
}
/**
* We don't generate modifiers, everything is public!
*/
public void test_modifiers_method() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" public void mPublic() {}",
" protected void mProtected() {}",
" void mDefault() {}",
" private void mPrivate() {}",
" static void mStatic() {}",
"}");
assertDartSource(//
"class A {",
" void mPublic() {",
" }",
" void mProtected() {",
" }",
" void mDefault() {",
" }",
" void mPrivate() {",
" }",
" static void mStatic() {",
" }",
"}");
}
public void test_statementAssert() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" assert 1 < 2;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" assert(1 < 2);",
" }",
"}");
}
public void test_statementBreak() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" while (true) {",
" break;",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" while (true) {",
" break;",
" }",
" }",
"}");
}
public void test_statementBreak_withLabel() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" L: L2: while (true) {",
" break L;",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" L: L2: while (true) {",
" break L;",
" }",
" }",
"}");
}
public void test_statementConstructorInvocation() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" public A() {",
" this(42);",
" }",
" public A(int p) {",
" print(p);",
" }",
"}",
"");
assertDartSource(//
"class A {",
" A.jtd_constructor_0_decl() {",
" thisConstructorRedirection(42);",
" }",
" A.jtd_constructor_1_decl(int p) {",
" print(p);",
" }",
"}");
}
public void test_statementContinue() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" while (true) {",
" continue;",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" while (true) {",
" continue;",
" }",
" }",
"}");
}
public void test_statementContinue_withLabel() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" L: L2: while (true) {",
" continue L;",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" L: L2: while (true) {",
" continue L;",
" }",
" }",
"}");
}
public void test_statementDo() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" do {",
" print(0);",
" } while (true);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" do {",
" print(0);",
" } while (true);",
" }",
"}");
}
public void test_statementEmpty() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" ;",
" ;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" ;",
" ;",
" }",
"}");
}
public void test_statementFor() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" for (int i = 0; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" for (int i = 0; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
}
public void test_statementFor_noInitializer() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int i = 0;",
" for (; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int i = 0;",
" for (; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
}
public void test_statementFor2() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int i;",
" for (i = 0; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int i;",
" for (i = 0; i < 10; i++) {",
" print(i);",
" }",
" }",
"}");
}
public void test_statementForEach() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(Iterable<String> items) {",
" for (String item: items) {",
" print(item);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test(Iterable<String> items) {",
" for (String item in items) {",
" print(item);",
" }",
" }",
"}");
}
public void test_statementIf() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" if (1 < 2) {",
" print(0);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" if (1 < 2) {",
" print(0);",
" }",
" }",
"}");
}
public void test_statementIfElse() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" if (1 < 2) {",
" print(1);",
" } else {",
" print(2);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" if (1 < 2) {",
" print(1);",
" } else {",
" print(2);",
" }",
" }",
"}");
}
public void test_statementReturn() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" int foo() {",
" return 42;",
" }",
"}");
assertDartSource(//
"class A {",
" int foo() => 42;",
"}");
}
public void test_statementSuperMethodInvocation() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(int p) {}",
"}",
"public class B extends A {",
" void test() {",
" print(1);",
" super.test(2);",
" print(3);",
" }",
"}",
"");
assertDartSource(
"class A {",
" void test(int p) {",
" }",
"}",
"class B extends A {",
" void test() {",
" print(1);",
" super.test(2);",
" print(3);",
" }",
"}");
}
public void test_statementSwitch() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void main(int p) {",
" switch (p) {",
" case 1:",
" if (0 == 1) {",
" print(0);",
" break;",
" }",
" print(1);",
" break;",
" case 2:",
" case 3:",
" print(2);",
" break;",
" default:",
" print(3);",
" break;",
" }",
" }",
"}");
assertDartSource(
"class A {",
" void main(int p) {",
" while (true) {",
" if (p == 1) {",
" if (0 == 1) {",
" print(0);",
" break;",
" }",
" print(1);",
" } else if (p == 2 || p == 3) {",
" print(2);",
" } else {",
" print(3);",
" }",
" break;",
" }",
" }",
"}");
}
public void test_statementSynchronized() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" synchronized (this) {",
" print(0);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(0);",
" }",
"}");
}
public void test_statementTry_catch() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" try {",
" print(0);",
" } catch (E1 e) {",
" print(1);",
" } catch (E2 e) {",
" print(2);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" try {",
" print(0);",
" } on E1 catch (e) {",
" print(1);",
" } on E2 catch (e) {",
" print(2);",
" }",
" }",
"}");
}
public void test_statementTry_finally() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" try {",
" print(1);",
" } finally {",
" print(2);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" try {",
" print(1);",
" } finally {",
" print(2);",
" }",
" }",
"}");
}
public void test_statementVariableDeclaration() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" int a = 1;",
" int b = 2, c = 3;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" int a = 1;",
" int b = 2, c = 3;",
" }",
"}");
}
public void test_statementWhile() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" while (true) {",
" print(0);",
" }",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" while (true) {",
" print(0);",
" }",
" }",
"}");
}
public void test_typeArray() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(String[] items, String[][] labels) {",
" }",
"}");
assertDartSource(//
"class A {",
" void test(List<String> items, List<List<String>> labels) {",
" }",
"}");
}
public void test_typeArray2() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(String items[], String labels[][]) {",
" }",
"}");
assertDartSource(//
"class A {",
" void test(List<String> items, List<List<String>> labels) {",
" }",
"}");
}
public void test_typeLiteral_wrapper() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" print(Integer.class);",
" print(Double.class);",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" print(int);",
" print(double);",
" }",
"}");
}
public void test_typePrimitive() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test() {",
" boolean v1;",
" byte v2;",
" char v3;",
" short v4;",
" int v5;",
" long v6;",
" float v7;",
" double v8;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" bool v1;",
" int v2;",
" int v3;",
" int v4;",
" int v5;",
" int v6;",
" double v7;",
" double v8;",
" }",
"}");
}
public void test_typeWildcard() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"import java.util.*;",
"public class A {",
" void test() {",
" List<?> v1;",
" List<? extends String> v2;",
" Map<?, String> v3;",
" Map<?, ?> v4;",
" }",
"}");
assertDartSource(//
"class A {",
" void test() {",
" List v1;",
" List<String> v2;",
" Map<dynamic, String> v3;",
" Map v4;",
" }",
"}");
}
public void test_typeWrapper() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" Void testVoid() {return null;}",
" Boolean testBoolean() {return null;}",
" Short testShort() {return null;}",
" Integer testInteger() {return null;}",
" Long testLong() {return null;}",
" Float testFloat() {return null;}",
" Double testDouble() {return null;}",
" BigInteger testBigInteger() {return null;}",
"}");
assertDartSource(
"class A {",
" Object testVoid() => null;",
" bool testBoolean() => null;",
" int testShort() => null;",
" int testInteger() => null;",
" int testLong() => null;",
" double testFloat() => null;",
" double testDouble() => null;",
" int testBigInteger() => null;",
"}");
}
public void test_unitEmpty() throws Exception {
parseJava();
assertDartSource("");
}
/**
* We can generate <code>List</code> for var-args declaration, but we don't know about them at
* invocation point during syntax translation, only at semantic step.
*/
public void test_varArgs() throws Exception {
parseJava(
"// filler filler filler filler filler filler filler filler filler filler",
"public class A {",
" void test(int errorCode, Object ...args) {",
" }",
" void main() {",
" test(-1);",
" test(-1, 2, 3.0);",
" }",
"}");
assertDartSource(//
"class A {",
" void test(int errorCode, List<Object> args) {",
" }",
" void main() {",
" test(-1);",
" test(-1, 2, 3.0);",
" }",
"}");
}
void printFormattedSource() {
translate();
String source = toFormattedSource(dartUnit);
String[] lines = StringUtils.split(source, '\n');
for (int i = 0; i < lines.length; i++) {
String line = lines[i];
System.out.print("\"");
line = StringUtils.replace(line, "\"", "\\\"");
System.out.print(line);
if (i != lines.length - 1) {
System.out.println("\",");
} else {
System.out.println("\"");
}
}
}
/**
* Translates {@link #javaUnit} into {@link #dartUnit} and check that it produces given Dart
* source.
*/
private void assertDartSource(String... lines) {
translate();
String actualDartSource = toFormattedSource(dartUnit);
String expectedDartSource = Joiner.on("\n").join(lines);
assertEquals(expectedDartSource, actualDartSource);
}
/**
* Parse Java source lines into {@link #javaUnit}.
*/
private void parseJava(String... lines) {
javaSource = Joiner.on("\n").join(lines);
ASTParser parser = ASTParser.newParser(AST.JLS4);
parser.setCompilerOptions(ImmutableMap.of(
JavaCore.COMPILER_SOURCE,
JavaCore.VERSION_1_5,
JavaCore.COMPILER_DOC_COMMENT_SUPPORT,
JavaCore.ENABLED));
parser.setSource(javaSource.toCharArray());
javaUnit = (org.eclipse.jdt.core.dom.CompilationUnit) parser.createAST(null);
assertThat(javaUnit.getProblems()).isEmpty();
}
private void translate() {
dartUnit = SyntaxTranslator.translate(context, javaUnit, javaSource);
}
}