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test/tools/javac/6889255/T6889255.java@c002fdee76fd (annotated)

test/tools/javac/6889255/T6889255.java

Thu, 25 Oct 2012 11:09:36 -0700

author

jjg

date

Thu, 25 Oct 2012 11:09:36 -0700

changeset 1374

c002fdee76fd

parent 554

9d9f26857129

child 1792

ec871c3e8337

permissions

-rw-r--r--

7200915: convert TypeTags from a series of small ints to an enum
Reviewed-by: jjg, mcimadamore
Contributed-by: vicente.romero@oracle.com

jjg@428	1	/*
jjg@1374	2	* Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
jjg@428	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@428	4	*
jjg@428	5	* This code is free software; you can redistribute it and/or modify it
jjg@428	6	* under the terms of the GNU General Public License version 2 only, as
jjg@428	7	* published by the Free Software Foundation.
jjg@428	8	*
jjg@428	9	* This code is distributed in the hope that it will be useful, but WITHOUT
jjg@428	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@428	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@428	12	* version 2 for more details (a copy is included in the LICENSE file that
jjg@428	13	* accompanied this code).
jjg@428	14	*
jjg@428	15	* You should have received a copy of the GNU General Public License version
jjg@428	16	* 2 along with this work; if not, write to the Free Software Foundation,
jjg@428	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@428	18	*
ohair@554	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554	20	* or visit www.oracle.com if you need additional information or have any
ohair@554	21	* questions.
jjg@428	22	*/
jjg@428	23
jjg@428	24	/*
jjg@428	25	* @test
jjg@428	26	* @bug 6889255
jjg@428	27	* @summary ClassReader does not read parameter names correctly
jjg@428	28	*/
jjg@428	29
jjg@428	30	import java.io.*;
jjg@428	31	import java.util.*;
jjg@428	32	import javax.tools.StandardLocation;
jjg@428	33	import com.sun.tools.javac.code.Flags;
jjg@428	34	import com.sun.tools.javac.code.Kinds;
jjg@428	35	import com.sun.tools.javac.code.Scope;
jjg@428	36	import com.sun.tools.javac.code.Symbol.*;
jjg@428	37	import com.sun.tools.javac.code.Type;
jjg@428	38	import com.sun.tools.javac.code.Type.ClassType;
jjg@1374	39	import com.sun.tools.javac.code.TypeTag;
jjg@428	40	import com.sun.tools.javac.file.JavacFileManager;
jjg@428	41	import com.sun.tools.javac.jvm.ClassReader;
jjg@428	42	import com.sun.tools.javac.util.Context;
jjg@428	43	import com.sun.tools.javac.util.Names;
jjg@428	44
jjg@428	45	public class T6889255 {
jjg@428	46	boolean testInterfaces = true;
jjg@428	47	boolean testSyntheticMethods = true;
jjg@428	48
jjg@428	49	// The following enums control the generation of the test methods to be compiled.
jjg@428	50	enum GenericKind {
jjg@428	51	NOT_GENERIC,
jjg@428	52	GENERIC
jjg@428	53	};
jjg@428	54
jjg@428	55	enum ClassKind {
jjg@428	56	CLASS("Clss"),
jjg@428	57	INTERFACE("Intf"),
jjg@428	58	ENUM("Enum");
jjg@428	59	final String base;
jjg@428	60	ClassKind(String base) { this.base = base; }
jjg@428	61	};
jjg@428	62
jjg@428	63	enum NestedKind {
jjg@428	64	/** Declare methods inside the outermost container. */
jjg@428	65	NONE,
jjg@428	66	/** Declare methods inside a container with a 'static' modifier. */
jjg@428	67	NESTED,
jjg@428	68	/** Declare methods inside a container without a 'static' modifier. */
jjg@428	69	INNER,
jjg@428	70	/** Declare methods inside a local class in an initializer. */
jjg@428	71	INIT_LOCAL,
jjg@428	72	/** Declare methods inside an anonymous class in an initializer. */
jjg@428	73	INIT_ANON,
jjg@428	74	/** Declare methods inside a local class in a method. */
jjg@428	75	METHOD_LOCAL,
jjg@428	76	/** Declare methods inside an anonymous class in a method. */
jjg@428	77	METHOD_ANON
jjg@428	78	};
jjg@428	79
jjg@428	80	enum MethodKind {
jjg@428	81	ABSTRACT,
jjg@428	82	CONSTRUCTOR,
jjg@428	83	METHOD,
jjg@428	84	STATIC_METHOD,
jjg@428	85	BRIDGE_METHOD
jjg@428	86	};
jjg@428	87
jjg@428	88	enum FinalKind {
jjg@428	89	/** Method body does not reference external final variables. */
jjg@428	90	NO_FINAL,
jjg@428	91	/** Method body references external final variables. */
jjg@428	92	USE_FINAL
jjg@428	93	};
jjg@428	94
jjg@428	95	public static void main(String... args) throws Exception {
jjg@428	96	new T6889255().run();
jjg@428	97	}
jjg@428	98
jjg@428	99	void run() throws Exception {
jjg@428	100	genTest();
jjg@428	101
jjg@428	102	test("no-args", false);
jjg@428	103	test("g", true, "-g");
jjg@428	104
jjg@428	105	if (errors > 0)
jjg@428	106	throw new Exception(errors + " errors found");
jjg@428	107	}
jjg@428	108
jjg@428	109	/**
jjg@428	110	* Create a file containing lots of method definitions to be tested.
jjg@428	111	* There are 3 sets of nested loops that generate the methods.
jjg@428	112	* 1. The outermost set declares [generic] (class | interface | enum)
jjg@428	113	* 2. The middle set declares [(nested | inner | anon | local)] class
jjg@428	114	* 3. The innermost set declares
jjg@428	115	* [generic] (constructor|method|static-method|bridge-method) [using final variables in outer scope]
jjg@428	116	* Invalid combinations are filtered out.
jjg@428	117	*/
jjg@428	118	void genTest() throws Exception {
jjg@428	119	BufferedWriter out = new BufferedWriter(new FileWriter("Test.java"));
jjg@428	120
jjg@428	121	// This interface is used to force bridge methods to be generated, by
jjg@428	122	// implementing its methods with subtypes of Object
jjg@428	123	out.write("interface Base {\n");
jjg@428	124	out.write(" Object base_m1(int i1);\n");
jjg@428	125	out.write(" Object base_m2(int i1);\n");
jjg@428	126	out.write("}\n");
jjg@428	127
jjg@428	128	int outerNum = 0;
jjg@428	129	// Outermost set of loops, to generate a top level container
jjg@428	130	for (GenericKind outerGenericKind: GenericKind.values()) {
jjg@428	131	for (ClassKind outerClassKind: ClassKind.values()) {
jjg@428	132	if (outerGenericKind == GenericKind.GENERIC && outerClassKind == ClassKind.ENUM)
jjg@428	133	continue;
jjg@428	134	String outerClassName = outerClassKind.base + (outerNum++);
jjg@428	135	String outerTypeArg = outerClassKind.toString().charAt(0) + "T";
jjg@428	136	if (outerClassKind == ClassKind.CLASS)
jjg@428	137	out.write("abstract ");
jjg@428	138	out.write(outerClassKind.toString().toLowerCase() + " " + outerClassName);
jjg@428	139	if (outerGenericKind == GenericKind.GENERIC)
jjg@428	140	out.write("<" + outerTypeArg + ">");
jjg@428	141	if (outerClassKind == ClassKind.INTERFACE)
jjg@428	142	out.write(" extends Base");
jjg@428	143	else
jjg@428	144	out.write(" implements Base");
jjg@428	145	out.write(" {\n");
jjg@428	146	if (outerClassKind == ClassKind.ENUM) {
jjg@428	147	out.write(" E1(0,0,0), E2(0,0,0), E3(0,0,0);\n");
jjg@428	148	out.write(" " + outerClassName + "(int i1, int i2, int i3) { }\n");
jjg@428	149	}
jjg@428	150	// Middle set of loops, to generate an optional nested container
jjg@428	151	int nestedNum = 0;
jjg@428	152	int methodNum = 0;
jjg@428	153	for (GenericKind nestedGenericKind: GenericKind.values()) {
jjg@428	154	nextNestedKind:
jjg@428	155	for (NestedKind nestedKind: NestedKind.values()) {
jjg@428	156	// if the nested kind is none, there is no point iterating over all
jjg@428	157	// nested generic kinds, so arbitarily limit it to just one kind
jjg@428	158	if (nestedKind == NestedKind.NONE && nestedGenericKind != GenericKind.NOT_GENERIC)
jjg@428	159	continue;
jjg@428	160	if ((nestedKind == NestedKind.METHOD_ANON || nestedKind == NestedKind.INIT_ANON)
jjg@428	161	&& nestedGenericKind == GenericKind.GENERIC)
jjg@428	162	continue;
jjg@428	163	String indent = " ";
jjg@428	164	boolean haveFinal = false;
jjg@428	165	switch (nestedKind) {
jjg@428	166	case METHOD_ANON: case METHOD_LOCAL:
jjg@428	167	if (outerClassKind == ClassKind.INTERFACE)
jjg@428	168	continue nextNestedKind;
jjg@428	169	out.write(indent + "void m" + + (nestedNum++) + "() {\n");
jjg@428	170	indent += " ";
jjg@428	171	out.write(indent + "final int fi1 = 0;\n");
jjg@428	172	haveFinal = true;
jjg@428	173	break;
jjg@428	174	case INIT_ANON: case INIT_LOCAL:
jjg@428	175	if (outerClassKind == ClassKind.INTERFACE)
jjg@428	176	continue nextNestedKind;
jjg@428	177	out.write(indent + "{\n");
jjg@428	178	indent += " ";
jjg@428	179	break;
jjg@428	180	}
jjg@428	181	for (ClassKind nestedClassKind: ClassKind.values()) {
jjg@428	182	if ((nestedGenericKind == GenericKind.GENERIC)
jjg@428	183	&& (nestedClassKind == ClassKind.ENUM))
jjg@428	184	continue;
jjg@428	185	if ((nestedKind == NestedKind.METHOD_ANON || nestedKind == NestedKind.METHOD_LOCAL
jjg@428	186	|| nestedKind == NestedKind.INIT_ANON || nestedKind == NestedKind.INIT_LOCAL)
jjg@428	187	&& nestedClassKind != ClassKind.CLASS)
jjg@428	188	continue;
jjg@428	189	// if the nested kind is none, there is no point iterating over all
jjg@428	190	// nested class kinds, so arbitarily limit it to just one kind
jjg@428	191	if (nestedKind == NestedKind.NONE && nestedClassKind != ClassKind.CLASS)
jjg@428	192	continue;
jjg@428	193
jjg@428	194	ClassKind methodClassKind;
jjg@428	195	String methodClassName;
jjg@428	196	boolean allowAbstractMethods;
jjg@428	197	boolean allowStaticMethods;
jjg@428	198	switch (nestedKind) {
jjg@428	199	case NONE:
jjg@428	200	methodClassKind = outerClassKind;
jjg@428	201	methodClassName = outerClassName;
jjg@428	202	allowAbstractMethods = (outerClassKind == ClassKind.CLASS);
jjg@428	203	allowStaticMethods = (outerClassKind != ClassKind.INTERFACE);
jjg@428	204	break;
jjg@428	205	case METHOD_ANON:
jjg@428	206	case INIT_ANON:
jjg@428	207	out.write(indent + "new Base() {\n");
jjg@428	208	indent += " ";
jjg@428	209	methodClassKind = ClassKind.CLASS;
jjg@428	210	methodClassName = null;
jjg@428	211	allowAbstractMethods = false;
jjg@428	212	allowStaticMethods = false;
jjg@428	213	break;
jjg@428	214	default: { // INNER, NESTED, LOCAL
jjg@428	215	String nestedClassName = "N" + nestedClassKind.base + (nestedNum++);
jjg@428	216	String nestedTypeArg = nestedClassKind.toString().charAt(0) + "T";
jjg@428	217	out.write(indent);
jjg@428	218	if (nestedKind == NestedKind.NESTED)
jjg@428	219	out.write("static ");
jjg@428	220	if (nestedClassKind == ClassKind.CLASS)
jjg@428	221	out.write("abstract ");
jjg@428	222	out.write(nestedClassKind.toString().toLowerCase() + " " + nestedClassName);
jjg@428	223	if (nestedGenericKind == GenericKind.GENERIC)
jjg@428	224	out.write("<" + nestedTypeArg + ">");
jjg@428	225	if (nestedClassKind == ClassKind.INTERFACE)
jjg@428	226	out.write(" extends Base ");
jjg@428	227	else
jjg@428	228	out.write(" implements Base ");
jjg@428	229	out.write(" {\n");
jjg@428	230	indent += " ";
jjg@428	231	if (nestedClassKind == ClassKind.ENUM) {
jjg@428	232	out.write(indent + "E1(0,0,0), E2(0,0,0), E3(0,0,0);\n");
jjg@428	233	out.write(indent + nestedClassName + "(int i1, int i2, int i3) { }\n");
jjg@428	234	}
jjg@428	235	methodClassKind = nestedClassKind;
jjg@428	236	methodClassName = nestedClassName;
jjg@428	237	allowAbstractMethods = (nestedClassKind == ClassKind.CLASS);
jjg@428	238	allowStaticMethods = (nestedKind == NestedKind.NESTED && nestedClassKind != ClassKind.INTERFACE);
jjg@428	239	break;
jjg@428	240	}
jjg@428	241	}
jjg@428	242
jjg@428	243	// Innermost loops, to generate methods
jjg@428	244	for (GenericKind methodGenericKind: GenericKind.values()) {
jjg@428	245	for (FinalKind finalKind: FinalKind.values()) {
jjg@428	246	for (MethodKind methodKind: MethodKind.values()) {
jjg@428	247	// out.write("// " + outerGenericKind
jjg@428	248	// + " " + outerClassKind
jjg@428	249	// + " " + nestedKind
jjg@428	250	// + " " + nestedGenericKind
jjg@428	251	// + " " + nestedClassKind
jjg@428	252	// + " " + methodGenericKind
jjg@428	253	// + " " + finalKind
jjg@428	254	// + " " + methodKind
jjg@428	255	// + "\n");
jjg@428	256	switch (methodKind) {
jjg@428	257	case CONSTRUCTOR:
jjg@428	258	if (nestedKind == NestedKind.METHOD_ANON || nestedKind == NestedKind.INIT_ANON)
jjg@428	259	break;
jjg@428	260	if (methodClassKind != ClassKind.CLASS)
jjg@428	261	break;
jjg@428	262	if (finalKind == FinalKind.USE_FINAL && !haveFinal)
jjg@428	263	break;
jjg@428	264	out.write(indent);
jjg@428	265	if (methodGenericKind == GenericKind.GENERIC) {
jjg@428	266	out.write("<CT> " + methodClassName + "(CT c1, CT c2");
jjg@428	267	} else {
jjg@428	268	out.write(methodClassName + "(boolean b1, char c2");
jjg@428	269	}
jjg@428	270	if (finalKind == FinalKind.USE_FINAL) {
jjg@428	271	// add a dummy parameter to avoid duplicate declaration
jjg@428	272	out.write(", int i3) { int i = fi1; }\n");
jjg@428	273	} else
jjg@428	274	out.write(") { }\n");
jjg@428	275	break;
jjg@428	276	case ABSTRACT:
jjg@428	277	if (!allowAbstractMethods)
jjg@428	278	continue;
jjg@428	279	// fallthrough
jjg@428	280	case METHOD:
jjg@428	281	if (finalKind == FinalKind.USE_FINAL && !haveFinal)
jjg@428	282	break;
jjg@428	283	out.write(indent);
jjg@428	284	if (methodKind == MethodKind.ABSTRACT)
jjg@428	285	out.write("abstract ");
jjg@428	286	if (methodGenericKind == GenericKind.GENERIC)
jjg@428	287	out.write("<MT> ");
jjg@428	288	out.write("void m" + (methodNum++) + "(int i1, long l2, float f3)");
jjg@428	289	if (methodKind == MethodKind.ABSTRACT || methodClassKind == ClassKind.INTERFACE)
jjg@428	290	out.write(";\n");
jjg@428	291	else {
jjg@428	292	out.write(" {");
jjg@428	293	if (finalKind == FinalKind.USE_FINAL)
jjg@428	294	out.write(" int i = fi1;");
jjg@428	295	out.write(" }\n");
jjg@428	296	}
jjg@428	297	break;
jjg@428	298	case BRIDGE_METHOD:
jjg@428	299	if (methodGenericKind == GenericKind.GENERIC)
jjg@428	300	break;
jjg@428	301	out.write(indent);
jjg@428	302	// methods Base.base_m1 and Base.base_m2 are declared for the
jjg@428	303	// benefit of bridge methods. They need to be implemented
jjg@428	304	// whether or not a final variable is used.
jjg@428	305	String methodName = (finalKind == FinalKind.NO_FINAL ? "base_m1" : "base_m2");
jjg@428	306	out.write("public String " + methodName + "(int i1)");
jjg@428	307	if (methodClassKind == ClassKind.INTERFACE)
jjg@428	308	out.write(";\n");
jjg@428	309	else {
jjg@428	310	out.write(" {");
jjg@428	311	if (finalKind == FinalKind.USE_FINAL && haveFinal)
jjg@428	312	out.write(" int i = fi1;");
jjg@428	313	out.write(" return null; }\n");
jjg@428	314	}
jjg@428	315	break;
jjg@428	316	case STATIC_METHOD:
jjg@428	317	if (!allowStaticMethods)
jjg@428	318	break;
jjg@428	319	if (finalKind == FinalKind.USE_FINAL && !haveFinal)
jjg@428	320	break;
jjg@428	321	out.write(indent + "static ");
jjg@428	322	if (methodGenericKind == GenericKind.GENERIC)
jjg@428	323	out.write("<MT> ");
jjg@428	324	out.write("void m" + (methodNum++) + "(int i1, long l2, float f3) {");
jjg@428	325	if (finalKind == FinalKind.USE_FINAL)
jjg@428	326	out.write(" int i = fi1;");
jjg@428	327	out.write(" }\n");
jjg@428	328	break;
jjg@428	329	}
jjg@428	330
jjg@428	331	}
jjg@428	332	}
jjg@428	333	}
jjg@428	334	if (nestedKind != NestedKind.NONE) {
jjg@428	335	indent = indent.substring(0, indent.length() - 4);
jjg@428	336	out.write(indent + "};\n");
jjg@428	337	}
jjg@428	338	}
jjg@428	339	switch (nestedKind) {
jjg@428	340	case METHOD_ANON: case METHOD_LOCAL:
jjg@428	341	case INIT_ANON: case INIT_LOCAL:
jjg@428	342	indent = indent.substring(0, indent.length() - 4);
jjg@428	343	out.write(indent + "}\n\n");
jjg@428	344	}
jjg@428	345	}
jjg@428	346	}
jjg@428	347	out.write("}\n\n");
jjg@428	348	}
jjg@428	349	}
jjg@428	350	out.close();
jjg@428	351	}
jjg@428	352
jjg@428	353
jjg@428	354	void test(String testName, boolean expectNames, String... opts) throws Exception {
jjg@428	355	System.err.println("Test " + testName
jjg@428	356	+ ": expectNames:" + expectNames
jjg@428	357	+ " javacOpts:" + Arrays.asList(opts));
jjg@428	358
jjg@428	359	File outDir = new File(testName);
jjg@428	360	outDir.mkdirs();
jjg@428	361	compile(outDir, opts);
jjg@428	362
jjg@428	363	Context ctx = new Context();
jjg@428	364	JavacFileManager fm = new JavacFileManager(ctx, true, null);
jjg@428	365	fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(outDir));
jjg@428	366	ClassReader cr = ClassReader.instance(ctx);
jjg@428	367	cr.saveParameterNames = true;
jjg@428	368	Names names = Names.instance(ctx);
jjg@428	369
jjg@428	370	Set<String> classes = getTopLevelClasses(outDir);
jjg@428	371	Deque<String> work = new LinkedList<String>(classes);
jjg@428	372	String classname;
jjg@428	373	while ((classname = work.poll()) != null) {
jjg@428	374	System.err.println("Checking class " + classname);
jjg@428	375	ClassSymbol sym = cr.enterClass(names.table.fromString(classname));
jjg@428	376	sym.complete();
jjg@428	377
jjg@428	378	if ((sym.flags() & Flags.INTERFACE) != 0 && !testInterfaces)
jjg@428	379	continue;
jjg@428	380
jjg@428	381	for (Scope.Entry e = sym.members_field.elems; e != null; e = e.sibling) {
jjg@428	382	System.err.println("Checking member " + e.sym);
jjg@428	383	switch (e.sym.kind) {
jjg@428	384	case Kinds.TYP: {
jjg@428	385	String name = e.sym.flatName().toString();
jjg@428	386	if (!classes.contains(name)) {
jjg@428	387	classes.add(name);
jjg@428	388	work.add(name);
jjg@428	389	}
jjg@428	390	break;
jjg@428	391	}
jjg@428	392	case Kinds.MTH:
jjg@428	393	verify((MethodSymbol) e.sym, expectNames);
jjg@428	394	break;
jjg@428	395	}
jjg@428	396
jjg@428	397	}
jjg@428	398	}
jjg@428	399	}
jjg@428	400
jjg@428	401	void verify(MethodSymbol m, boolean expectNames) {
jjg@428	402	if ((m.flags() & Flags.SYNTHETIC) != 0 && !testSyntheticMethods)
jjg@428	403	return;
jjg@428	404
jjg@428	405	//System.err.println("verify: " + m.params());
jjg@428	406	int i = 1;
jjg@428	407	for (VarSymbol v: m.params()) {
jjg@428	408	String expectName;
jjg@428	409	if (expectNames)
jjg@428	410	expectName = getExpectedName(v, i);
jjg@428	411	else
jjg@428	412	expectName = "arg" + (i - 1);
jjg@428	413	checkEqual(expectName, v.name.toString());
jjg@428	414	i++;
jjg@428	415	}
jjg@428	416	}
jjg@428	417
jjg@428	418	String getExpectedName(VarSymbol v, int i) {
jjg@428	419	// special cases:
jjg@428	420	// synthetic method
jjg@428	421	if (((v.owner.owner.flags() & Flags.ENUM) != 0)
jjg@428	422	&& v.owner.name.toString().equals("valueOf"))
jjg@428	423	return "name";
jjg@428	424	// interfaces don't have saved names
jjg@428	425	// -- no Code attribute for the LocalVariableTable attribute
jjg@428	426	if ((v.owner.owner.flags() & Flags.INTERFACE) != 0)
jjg@428	427	return "arg" + (i - 1);
jjg@428	428	// abstract methods don't have saved names
jjg@428	429	// -- no Code attribute for the LocalVariableTable attribute
jjg@428	430	if ((v.owner.flags() & Flags.ABSTRACT) != 0)
jjg@428	431	return "arg" + (i - 1);
jjg@428	432	// bridge methods use xN
jjg@428	433	if ((v.owner.flags() & Flags.BRIDGE) != 0)
jjg@428	434	return "x" + (i - 1);
jjg@428	435
jjg@428	436	// The rest of this method assumes the local conventions in the test program
jjg@428	437	Type t = v.type;
jjg@428	438	String s;
jjg@1374	439	if (t.hasTag(TypeTag.CLASS))
jjg@428	440	s = ((ClassType) t).tsym.name.toString();
jjg@428	441	else
jjg@428	442	s = t.toString();
jjg@428	443	return String.valueOf(Character.toLowerCase(s.charAt(0))) + i;
jjg@428	444	}
jjg@428	445
jjg@428	446	void compile(File outDir, String... opts) throws Exception {
jjg@428	447	//File testSrc = new File(System.getProperty("test.src"), ".");
jjg@428	448	List<String> args = new ArrayList<String>();
jjg@428	449	args.add("-d");
jjg@428	450	args.add(outDir.getPath());
jjg@428	451	args.addAll(Arrays.asList(opts));
jjg@428	452	//args.add(new File(testSrc, "Test.java").getPath());
jjg@428	453	args.add("Test.java");
jjg@428	454	StringWriter sw = new StringWriter();
jjg@428	455	PrintWriter pw = new PrintWriter(sw);
jjg@428	456	int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
jjg@428	457	pw.close();
jjg@428	458	if (rc != 0) {
jjg@428	459	System.err.println(sw.toString());
jjg@428	460	throw new Exception("compilation failed unexpectedly");
jjg@428	461	}
jjg@428	462	}
jjg@428	463
jjg@428	464	Set<String> getTopLevelClasses(File outDir) {
jjg@428	465	Set<String> classes = new HashSet<String>();
jjg@428	466	for (String f: outDir.list()) {
jjg@428	467	if (f.endsWith(".class") && !f.contains("$"))
jjg@428	468	classes.add(f.replace(".class", ""));
jjg@428	469	}
jjg@428	470	return classes;
jjg@428	471	}
jjg@428	472
jjg@428	473	void checkEqual(String expect, String found) {
jjg@428	474	if (!expect.equals(found))
jjg@428	475	error("mismatch: expected:" + expect + " found:" + found);
jjg@428	476	}
jjg@428	477
jjg@428	478	void error(String msg) {
jjg@428	479	System.err.println(msg);
jjg@428	480	errors++;
jjg@428	481	throw new Error();
jjg@428	482	}
jjg@428	483
jjg@428	484	int errors;
jjg@428	485	}