aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test /nodynamiccopyright/
aoqi@0:  * @bug 7190862 7109747
aoqi@0:  * @summary javap shows an incorrect type for operands if the 'wide' prefix is used
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import com.sun.tools.javap.JavapFileManager;
aoqi@0: import com.sun.tools.javap.JavapTask;
aoqi@0: import java.io.PrintWriter;
aoqi@0: import java.io.StringWriter;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.Arrays;
aoqi@0: import java.util.List;
aoqi@0: import java.util.Locale;
aoqi@0: import javax.tools.Diagnostic;
aoqi@0: import javax.tools.DiagnosticCollector;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileManager;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class T7190862 {
aoqi@0: 
aoqi@0:     enum TypeWideInstructionMap {
aoqi@0:         INT("int", new String[]{"istore_w", "iload_w"}),
aoqi@0:         LONG("long", new String[]{"lstore_w", "lload_w"}),
aoqi@0:         FLOAT("float", new String[]{"fstore_w", "fload_w"}),
aoqi@0:         DOUBLE("double", new String[]{"dstore_w", "dload_w"}),
aoqi@0:         OBJECT("Object", new String[]{"astore_w", "aload_w"});
aoqi@0: 
aoqi@0:         String type;
aoqi@0:         String[] instructions;
aoqi@0: 
aoqi@0:         TypeWideInstructionMap(String type, String[] instructions) {
aoqi@0:             this.type = type;
aoqi@0:             this.instructions = instructions;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     JavaSource source;
aoqi@0: 
aoqi@0:     public static void main(String[] args) {
aoqi@0:         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0:         new T7190862().run(comp);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void run(JavaCompiler comp) {
aoqi@0:         String code;
aoqi@0:         for (TypeWideInstructionMap typeInstructionMap: TypeWideInstructionMap.values()) {
aoqi@0:             if (typeInstructionMap != TypeWideInstructionMap.OBJECT) {
aoqi@0:                 code = createWideLocalSource(typeInstructionMap.type, 300);
aoqi@0:             } else {
aoqi@0:                 code = createWideLocalSourceForObject(300);
aoqi@0:             }
aoqi@0:             source = new JavaSource(code);
aoqi@0:             compile(comp);
aoqi@0:             check(typeInstructionMap.instructions);
aoqi@0:         }
aoqi@0: 
aoqi@0:         //an extra test for the iinc instruction
aoqi@0:         code = createIincSource();
aoqi@0:         source = new JavaSource(code);
aoqi@0:         compile(comp);
aoqi@0:         check(new String[]{"iinc_w"});
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void compile(JavaCompiler comp) {
aoqi@0:         JavacTask ct = (JavacTask)comp.getTask(null, null, null, null, null, Arrays.asList(source));
aoqi@0:         try {
aoqi@0:             if (!ct.call()) {
aoqi@0:                 throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));
aoqi@0:             }
aoqi@0:         } catch (Throwable ex) {
aoqi@0:             throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void check(String[] instructions) {
aoqi@0:         String out = javap(Arrays.asList("-c"), Arrays.asList("Test.class"));
aoqi@0:         for (String line: out.split(System.getProperty("line.separator"))) {
aoqi@0:             line = line.trim();
aoqi@0:             for (String instruction: instructions) {
aoqi@0:                 if (line.contains(instruction) && line.contains("#")) {
aoqi@0:                     throw new Error("incorrect type for operands for instruction " + instruction);
aoqi@0:                 }
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private String javap(List<String> args, List<String> classes) {
aoqi@0:         DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
aoqi@0:         StringWriter sw = new StringWriter();
aoqi@0:         PrintWriter pw = new PrintWriter(sw);
aoqi@0:         JavaFileManager fm = JavapFileManager.create(dc, pw);
aoqi@0:         JavapTask t = new JavapTask(pw, fm, dc, args, classes);
aoqi@0:         if (t.run() != 0)
aoqi@0:             throw new Error("javap failed unexpectedly");
aoqi@0: 
aoqi@0:         List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();
aoqi@0:         for (Diagnostic<? extends JavaFileObject> d: diags) {
aoqi@0:             if (d.getKind() == Diagnostic.Kind.ERROR)
aoqi@0:                 throw new Error(d.getMessage(Locale.ENGLISH));
aoqi@0:         }
aoqi@0:         return sw.toString();
aoqi@0: 
aoqi@0:     }
aoqi@0: 
aoqi@0:     private String createWideLocalSource(String type, int numberOfVars) {
aoqi@0:         String result = "    " + type + " x0 = 0;\n";
aoqi@0:         for (int i = 1; i < numberOfVars; i++) {
aoqi@0:             result += "        " + type + " x" + i + " = x" + (i - 1) + " + 1;\n";
aoqi@0:         }
aoqi@0:         return result;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private String createWideLocalSourceForObject(int numberOfVars) {
aoqi@0:         String result = "    Object x0 = new Object();\n";
aoqi@0:         for (int i = 1; i < numberOfVars; i++) {
aoqi@0:             result += "        Object x" + i + " = x0;\n";
aoqi@0:         }
aoqi@0:         return result;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private String createIincSource() {
aoqi@0:         return "    int i = 0;\n"
aoqi@0:                 + "        i += 1;\n"
aoqi@0:                 + "        i += 51;\n"
aoqi@0:                 + "        i += 101;\n"
aoqi@0:                 + "        i += 151;\n";
aoqi@0:     }
aoqi@0: 
aoqi@0:     class JavaSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         String template = "class Test {\n" +
aoqi@0:                           "    public static void main(String[] args)\n" +
aoqi@0:                           "    {\n" +
aoqi@0:                           "        #C" +
aoqi@0:                           "    }\n" +
aoqi@0:                           "}";
aoqi@0: 
aoqi@0:         String source;
aoqi@0: 
aoqi@0:         public JavaSource(String code) {
aoqi@0:             super(URI.create("Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             source = template.replaceAll("#C", code);
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }