/*

 * @test /nodynamiccopyright/

 * @bug 7190862 7109747

 * @summary javap shows an incorrect type for operands if the 'wide' prefix is used

 */

import com.sun.source.util.JavacTask;

import com.sun.tools.javap.JavapFileManager;

import com.sun.tools.javap.JavapTask;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.net.URI;

import java.util.Arrays;

import java.util.List;

import java.util.Locale;

import javax.tools.Diagnostic;

import javax.tools.DiagnosticCollector;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileManager;

import javax.tools.JavaFileObject;

import javax.tools.SimpleJavaFileObject;

import javax.tools.ToolProvider;

public class T7190862 {

    enum TypeWideInstructionMap {

        INT("int", new String[]{"istore_w", "iload_w"}),

        LONG("long", new String[]{"lstore_w", "lload_w"}),

        FLOAT("float", new String[]{"fstore_w", "fload_w"}),

        DOUBLE("double", new String[]{"dstore_w", "dload_w"}),

        OBJECT("Object", new String[]{"astore_w", "aload_w"});

        String type;

        String[] instructions;

        TypeWideInstructionMap(String type, String[] instructions) {

            this.type = type;

            this.instructions = instructions;

        }

    }

    JavaSource source;

    public static void main(String[] args) {

        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

        new T7190862().run(comp);

    }

    private void run(JavaCompiler comp) {

        String code;

        for (TypeWideInstructionMap typeInstructionMap: TypeWideInstructionMap.values()) {

            if (typeInstructionMap != TypeWideInstructionMap.OBJECT) {

                code = createWideLocalSource(typeInstructionMap.type, 300);

            } else {

                code = createWideLocalSourceForObject(300);

            }

            source = new JavaSource(code);

            compile(comp);

            check(typeInstructionMap.instructions);

        }

        //an extra test for the iinc instruction

        code = createIincSource();

        source = new JavaSource(code);

        compile(comp);

        check(new String[]{"iinc_w"});

    }

    private void compile(JavaCompiler comp) {

        JavacTask ct = (JavacTask)comp.getTask(null, null, null, null, null, Arrays.asList(source));

        try {

            if (!ct.call()) {

                throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));

            }

        } catch (Throwable ex) {

            throw new AssertionError("Error thrown when compiling the following source:\n" + source.getCharContent(true));

        }

    }

    private void check(String[] instructions) {

        String out = javap(Arrays.asList("-c"), Arrays.asList("Test.class"));

        for (String line: out.split(System.getProperty("line.separator"))) {

            line = line.trim();

            for (String instruction: instructions) {

                if (line.contains(instruction) && line.contains("#")) {

                    throw new Error("incorrect type for operands for instruction " + instruction);

                }

            }

        }

    }

    private String javap(List<String> args, List<String> classes) {

        DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        JavaFileManager fm = JavapFileManager.create(dc, pw);

        JavapTask t = new JavapTask(pw, fm, dc, args, classes);

        if (t.run() != 0)

            throw new Error("javap failed unexpectedly");

        List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();

        for (Diagnostic<? extends JavaFileObject> d: diags) {

            if (d.getKind() == Diagnostic.Kind.ERROR)

                throw new Error(d.getMessage(Locale.ENGLISH));

        }

        return sw.toString();

    }

    private String createWideLocalSource(String type, int numberOfVars) {

        String result = "    " + type + " x0 = 0;\n";

        for (int i = 1; i < numberOfVars; i++) {

            result += "        " + type + " x" + i + " = x" + (i - 1) + " + 1;\n";

        }

        return result;

    }

    private String createWideLocalSourceForObject(int numberOfVars) {

        String result = "    Object x0 = new Object();\n";

        for (int i = 1; i < numberOfVars; i++) {

            result += "        Object x" + i + " = x0;\n";

        }

        return result;

    }

    private String createIincSource() {

        return "    int i = 0;\n"

                + "        i += 1;\n"

                + "        i += 51;\n"

                + "        i += 101;\n"

                + "        i += 151;\n";

    }

    class JavaSource extends SimpleJavaFileObject {

        String template = "class Test {\n" +

                          "    public static void main(String[] args)\n" +

                          "    {\n" +

                          "        #C" +

                          "    }\n" +

                          "}";

        String source;

        public JavaSource(String code) {

            super(URI.create("Test.java"), JavaFileObject.Kind.SOURCE);

            source = template.replaceAll("#C", code);

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

}