JDK 11 jdk.compiler.jmod - Compiler Tool

JDK 11 jdk.compiler.jmod is the JMOD file for JDK 11 Compiler tool, which can be invoked by the "javac" command.

JDK 11 Compiler tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.compiler.jmod.

JDK 11 Compiler tool compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Compiler source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.compiler.

You can click and view the content of each source code file in the list below.

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com/sun/tools/javac/code/Lint.java

/*
 * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
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 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.tools.javac.code;

import java.util.Arrays;
import java.util.EnumSet;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import com.sun.tools.javac.code.Symbol.*;
import com.sun.tools.javac.main.Option;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.Options;
import com.sun.tools.javac.util.Pair;

/**
 * A class for handling -Xlint suboptions and @SuppresssWarnings.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public class Lint
{
    /** The context key for the root Lint object. */
    protected static final Context.Key<Lint> lintKey = new Context.Key<>();

    /** Get the root Lint instance. */
    public static Lint instance(Context context) {
        Lint instance = context.get(lintKey);
        if (instance == null)
            instance = new Lint(context);
        return instance;
    }

    /**
     * Returns the result of combining the values in this object with
     * the given annotation.
     */
    public Lint augment(Attribute.Compound attr) {
        return augmentor.augment(this, attr);
    }


    /**
     * Returns the result of combining the values in this object with
     * the metadata on the given symbol.
     */
    public Lint augment(Symbol sym) {
        Lint l = augmentor.augment(this, sym.getDeclarationAttributes());
        if (sym.isDeprecated()) {
            if (l == this)
                l = new Lint(this);
            l.values.remove(LintCategory.DEPRECATION);
            l.suppressedValues.add(LintCategory.DEPRECATION);
        }
        return l;
    }

    /**
     * Returns a new Lint that has the given LintCategorys suppressed.
     * @param lc one or more categories to be suppressed
     */
    public Lint suppress(LintCategory... lc) {
        Lint l = new Lint(this);
        l.values.removeAll(Arrays.asList(lc));
        l.suppressedValues.addAll(Arrays.asList(lc));
        return l;
    }

    private final AugmentVisitor augmentor;

    private final EnumSet<LintCategory> values;
    private final EnumSet<LintCategory> suppressedValues;

    private static final Map<String, LintCategory> map = new ConcurrentHashMap<>(20);

    protected Lint(Context context) {
        // initialize values according to the lint options
        Options options = Options.instance(context);

        if (options.isSet(Option.XLINT) || options.isSet(Option.XLINT_CUSTOM, "all")) {
            // If -Xlint or -Xlint:all is given, enable all categories by default
            values = EnumSet.allOf(LintCategory.class);
        } else if (options.isSet(Option.XLINT_CUSTOM, "none")) {
            // if -Xlint:none is given, disable all categories by default
            values = EnumSet.noneOf(LintCategory.class);
        } else {
            // otherwise, enable on-by-default categories
            values = EnumSet.noneOf(LintCategory.class);

            Source source = Source.instance(context);
            if (source.compareTo(Source.JDK9) >= 0) {
                values.add(LintCategory.DEP_ANN);
            }
            values.add(LintCategory.REQUIRES_TRANSITIVE_AUTOMATIC);
            values.add(LintCategory.OPENS);
            values.add(LintCategory.MODULE);
            values.add(LintCategory.REMOVAL);
        }

        // Look for specific overrides
        for (LintCategory lc : LintCategory.values()) {
            if (options.isSet(Option.XLINT_CUSTOM, lc.option)) {
                values.add(lc);
            } else if (options.isSet(Option.XLINT_CUSTOM, "-" + lc.option)) {
                values.remove(lc);
            }
        }

        suppressedValues = EnumSet.noneOf(LintCategory.class);

        context.put(lintKey, this);
        augmentor = new AugmentVisitor(context);
    }

    protected Lint(Lint other) {
        this.augmentor = other.augmentor;
        this.values = other.values.clone();
        this.suppressedValues = other.suppressedValues.clone();
    }

    @Override
    public String toString() {
        return "Lint:[values" + values + " suppressedValues" + suppressedValues + "]";
    }

    /**
     * Categories of warnings that can be generated by the compiler.
     */
    public enum LintCategory {
        /**
         * Warn when code refers to a auxiliary class that is hidden in a source file (ie source file name is
         * different from the class name, and the type is not properly nested) and the referring code
         * is not located in the same source file.
         */
        AUXILIARYCLASS("auxiliaryclass"),

        /**
         * Warn about use of unnecessary casts.
         */
        CAST("cast"),

        /**
         * Warn about issues related to classfile contents
         */
        CLASSFILE("classfile"),

        /**
         * Warn about use of deprecated items.
         */
        DEPRECATION("deprecation"),

        /**
         * Warn about items which are documented with an {@code @deprecated} JavaDoc
         * comment, but which do not have {@code @Deprecated} annotation.
         */
        DEP_ANN("dep-ann"),

        /**
         * Warn about division by constant integer 0.
         */
        DIVZERO("divzero"),

        /**
         * Warn about empty statement after if.
         */
        EMPTY("empty"),

        /**
         * Warn about issues regarding module exports.
         */
        EXPORTS("exports"),

        /**
         * Warn about falling through from one case of a switch statement to the next.
         */
        FALLTHROUGH("fallthrough"),

        /**
         * Warn about finally clauses that do not terminate normally.
         */
        FINALLY("finally"),

        /**
         * Warn about module system related issues.
         */
        MODULE("module"),

        /**
         * Warn about issues regarding module opens.
         */
        OPENS("opens"),

        /**
         * Warn about issues relating to use of command line options
         */
        OPTIONS("options"),

        /**
         * Warn about issues regarding method overloads.
         */
        OVERLOADS("overloads"),

        /**
         * Warn about issues regarding method overrides.
         */
        OVERRIDES("overrides"),

        /**
         * Warn about invalid path elements on the command line.
         * Such warnings cannot be suppressed with the SuppressWarnings
         * annotation.
         */
        PATH("path"),

        /**
         * Warn about issues regarding annotation processing.
         */
        PROCESSING("processing"),

        /**
         * Warn about unchecked operations on raw types.
         */
        RAW("rawtypes"),

        /**
         * Warn about use of deprecated-for-removal items.
         */
        REMOVAL("removal"),

        /**
         * Warn about use of automatic modules in the requires clauses.
         */
        REQUIRES_AUTOMATIC("requires-automatic"),

        /**
         * Warn about automatic modules in requires transitive.
         */
        REQUIRES_TRANSITIVE_AUTOMATIC("requires-transitive-automatic"),

        /**
         * Warn about Serializable classes that do not provide a serial version ID.
         */
        SERIAL("serial"),

        /**
         * Warn about issues relating to use of statics
         */
        STATIC("static"),

        /**
         * Warn about issues relating to use of try blocks (i.e. try-with-resources)
         */
        TRY("try"),

        /**
         * Warn about unchecked operations on raw types.
         */
        UNCHECKED("unchecked"),

        /**
         * Warn about potentially unsafe vararg methods
         */
        VARARGS("varargs"),

        /**
         * Warn about use of preview features.
         */
        PREVIEW("preview");

        LintCategory(String option) {
            this(option, false);
        }

        LintCategory(String option, boolean hidden) {
            this.option = option;
            this.hidden = hidden;
            map.put(option, this);
        }

        static LintCategory get(String option) {
            return map.get(option);
        }

        public final String option;
        public final boolean hidden;
    }

    /**
     * Checks if a warning category is enabled. A warning category may be enabled
     * on the command line, or by default, and can be temporarily disabled with
     * the SuppressWarnings annotation.
     */
    public boolean isEnabled(LintCategory lc) {
        return values.contains(lc);
    }

    /**
     * Checks is a warning category has been specifically suppressed, by means
     * of the SuppressWarnings annotation, or, in the case of the deprecated
     * category, whether it has been implicitly suppressed by virtue of the
     * current entity being itself deprecated.
     */
    public boolean isSuppressed(LintCategory lc) {
        return suppressedValues.contains(lc);
    }

    protected static class AugmentVisitor implements Attribute.Visitor {
        private final Context context;
        private Symtab syms;
        private Lint parent;
        private Lint lint;

        AugmentVisitor(Context context) {
            // to break an ugly sequence of initialization dependencies,
            // we defer the initialization of syms until it is needed
            this.context = context;
        }

        Lint augment(Lint parent, Attribute.Compound attr) {
            initSyms();
            this.parent = parent;
            lint = null;
            attr.accept(this);
            return (lint == null ? parent : lint);
        }

        Lint augment(Lint parent, List<Attribute.Compound> attrs) {
            initSyms();
            this.parent = parent;
            lint = null;
            for (Attribute.Compound a: attrs) {
                a.accept(this);
            }
            return (lint == null ? parent : lint);
        }

        private void initSyms() {
            if (syms == null)
                syms = Symtab.instance(context);
        }

        private void suppress(LintCategory lc) {
            if (lint == null)
                lint = new Lint(parent);
            lint.suppressedValues.add(lc);
            lint.values.remove(lc);
        }

        public void visitConstant(Attribute.Constant value) {
            if (value.type.tsym == syms.stringType.tsym) {
                LintCategory lc = LintCategory.get((String) (value.value));
                if (lc != null)
                    suppress(lc);
            }
        }

        public void visitClass(Attribute.Class clazz) {
        }

        // If we find a @SuppressWarnings annotation, then we continue
        // walking the tree, in order to suppress the individual warnings
        // specified in the @SuppressWarnings annotation.
        public void visitCompound(Attribute.Compound compound) {
            if (compound.type.tsym == syms.suppressWarningsType.tsym) {
                for (List<Pair<MethodSymbol,Attribute>> v = compound.values;
                     v.nonEmpty(); v = v.tail) {
                    Pair<MethodSymbol,Attribute> value = v.head;
                    if (value.fst.name.toString().equals("value"))
                        value.snd.accept(this);
                }

            }
        }

        public void visitArray(Attribute.Array array) {
            for (Attribute value : array.values)
                value.accept(this);
        }

        public void visitEnum(Attribute.Enum e) {
        }

        public void visitError(Attribute.Error e) {
        }
    }
}

com/sun/tools/javac/code/Lint.java

 

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