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test/tools/javap/T7190862.java@959103a6100f (annotated)

test/tools/javap/T7190862.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1
aoqi@0	2	/*
aoqi@0	3	* @test /nodynamiccopyright/
aoqi@0	4	* @bug 7190862 7109747
aoqi@0	5	* @summary javap shows an incorrect type for operands if the 'wide' prefix is used
aoqi@0	6	*/
aoqi@0	7
aoqi@0	8	import com.sun.source.util.JavacTask;
aoqi@0	9	import com.sun.tools.javap.JavapFileManager;
aoqi@0	10	import com.sun.tools.javap.JavapTask;
aoqi@0	11	import java.io.PrintWriter;
aoqi@0	12	import java.io.StringWriter;
aoqi@0	13	import java.net.URI;
aoqi@0	14	import java.util.Arrays;
aoqi@0	15	import java.util.List;
aoqi@0	16	import java.util.Locale;
aoqi@0	17	import javax.tools.Diagnostic;
aoqi@0	18	import javax.tools.DiagnosticCollector;
aoqi@0	19	import javax.tools.JavaCompiler;
aoqi@0	20	import javax.tools.JavaFileManager;
aoqi@0	21	import javax.tools.JavaFileObject;
aoqi@0	22	import javax.tools.SimpleJavaFileObject;
aoqi@0	23	import javax.tools.ToolProvider;
aoqi@0	24
aoqi@0	25	public class T7190862 {
aoqi@0	26
aoqi@0	27	enum TypeWideInstructionMap {
aoqi@0	28	INT("int", new String[]{"istore_w", "iload_w"}),
aoqi@0	29	LONG("long", new String[]{"lstore_w", "lload_w"}),
aoqi@0	30	FLOAT("float", new String[]{"fstore_w", "fload_w"}),
aoqi@0	31	DOUBLE("double", new String[]{"dstore_w", "dload_w"}),
aoqi@0	32	OBJECT("Object", new String[]{"astore_w", "aload_w"});
aoqi@0	33
aoqi@0	34	String type;
aoqi@0	35	String[] instructions;
aoqi@0	36
aoqi@0	37	TypeWideInstructionMap(String type, String[] instructions) {
aoqi@0	38	this.type = type;
aoqi@0	39	this.instructions = instructions;
aoqi@0	40	}
aoqi@0	41	}
aoqi@0	42
aoqi@0	43	JavaSource source;
aoqi@0	44
aoqi@0	45	public static void main(String[] args) {
aoqi@0	46	JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0	47	new T7190862().run(comp);
aoqi@0	48	}
aoqi@0	49
aoqi@0	50	private void run(JavaCompiler comp) {
aoqi@0	51	String code;
aoqi@0	52	for (TypeWideInstructionMap typeInstructionMap: TypeWideInstructionMap.values()) {
aoqi@0	53	if (typeInstructionMap != TypeWideInstructionMap.OBJECT) {
aoqi@0	54	code = createWideLocalSource(typeInstructionMap.type, 300);
aoqi@0	55	} else {
aoqi@0	56	code = createWideLocalSourceForObject(300);
aoqi@0	57	}
aoqi@0	58	source = new JavaSource(code);
aoqi@0	59	compile(comp);
aoqi@0	60	check(typeInstructionMap.instructions);
aoqi@0	61	}
aoqi@0	62
aoqi@0	63	//an extra test for the iinc instruction
aoqi@0	64	code = createIincSource();
aoqi@0	65	source = new JavaSource(code);
aoqi@0	66	compile(comp);
aoqi@0	67	check(new String[]{"iinc_w"});
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	private void compile(JavaCompiler comp) {
aoqi@0	71	JavacTask ct = (JavacTask)comp.getTask(null, null, null, null, null, Arrays.asList(source));
aoqi@0	72	try {
aoqi@0	73	if (!ct.call()) {
aoqi@0	74	throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));
aoqi@0	75	}
aoqi@0	76	} catch (Throwable ex) {
aoqi@0	77	throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));
aoqi@0	78	}
aoqi@0	79	}
aoqi@0	80
aoqi@0	81	private void check(String[] instructions) {
aoqi@0	82	String out = javap(Arrays.asList("-c"), Arrays.asList("Test.class"));
aoqi@0	83	for (String line: out.split(System.getProperty("line.separator"))) {
aoqi@0	84	line = line.trim();
aoqi@0	85	for (String instruction: instructions) {
aoqi@0	86	if (line.contains(instruction) && line.contains("#")) {
aoqi@0	87	throw new Error("incorrect type for operands for instruction " + instruction);
aoqi@0	88	}
aoqi@0	89	}
aoqi@0	90	}
aoqi@0	91	}
aoqi@0	92
aoqi@0	93	private String javap(List<String> args, List<String> classes) {
aoqi@0	94	DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
aoqi@0	95	StringWriter sw = new StringWriter();
aoqi@0	96	PrintWriter pw = new PrintWriter(sw);
aoqi@0	97	JavaFileManager fm = JavapFileManager.create(dc, pw);
aoqi@0	98	JavapTask t = new JavapTask(pw, fm, dc, args, classes);
aoqi@0	99	if (t.run() != 0)
aoqi@0	100	throw new Error("javap failed unexpectedly");
aoqi@0	101
aoqi@0	102	List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();
aoqi@0	103	for (Diagnostic<? extends JavaFileObject> d: diags) {
aoqi@0	104	if (d.getKind() == Diagnostic.Kind.ERROR)
aoqi@0	105	throw new Error(d.getMessage(Locale.ENGLISH));
aoqi@0	106	}
aoqi@0	107	return sw.toString();
aoqi@0	108
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	private String createWideLocalSource(String type, int numberOfVars) {
aoqi@0	112	String result = " " + type + " x0 = 0;\n";
aoqi@0	113	for (int i = 1; i < numberOfVars; i++) {
aoqi@0	114	result += " " + type + " x" + i + " = x" + (i - 1) + " + 1;\n";
aoqi@0	115	}
aoqi@0	116	return result;
aoqi@0	117	}
aoqi@0	118
aoqi@0	119	private String createWideLocalSourceForObject(int numberOfVars) {
aoqi@0	120	String result = " Object x0 = new Object();\n";
aoqi@0	121	for (int i = 1; i < numberOfVars; i++) {
aoqi@0	122	result += " Object x" + i + " = x0;\n";
aoqi@0	123	}
aoqi@0	124	return result;
aoqi@0	125	}
aoqi@0	126
aoqi@0	127	private String createIincSource() {
aoqi@0	128	return " int i = 0;\n"
aoqi@0	129	+ " i += 1;\n"
aoqi@0	130	+ " i += 51;\n"
aoqi@0	131	+ " i += 101;\n"
aoqi@0	132	+ " i += 151;\n";
aoqi@0	133	}
aoqi@0	134
aoqi@0	135	class JavaSource extends SimpleJavaFileObject {
aoqi@0	136
aoqi@0	137	String template = "class Test {\n" +
aoqi@0	138	" public static void main(String[] args)\n" +
aoqi@0	139	" {\n" +
aoqi@0	140	" #C" +
aoqi@0	141	" }\n" +
aoqi@0	142	"}";
aoqi@0	143
aoqi@0	144	String source;
aoqi@0	145
aoqi@0	146	public JavaSource(String code) {
aoqi@0	147	super(URI.create("Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0	148	source = template.replaceAll("#C", code);
aoqi@0	149	}
aoqi@0	150
aoqi@0	151	@Override
aoqi@0	152	public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0	153	return source;
aoqi@0	154	}
aoqi@0	155	}
aoqi@0	156	}