Java 编译器代码定义的 Token 保留字
注释类型
public static enum CommentStyle {
LINE,
BLOCK,
JAVADOC;
private CommentStyle() {
}
}
Java语言保留字：
public static enum TokenKind implements Formattable, Filter {
EOF,
ERROR,
IDENTIFIER(Tokens.Token.Tag.NAMED),
ABSTRACT("abstract"),
ASSERT("assert", Tokens.Token.Tag.NAMED),
BOOLEAN("boolean", Tokens.Token.Tag.NAMED),
BREAK("break"),
BYTE("byte", Tokens.Token.Tag.NAMED),
CASE("case"),
CATCH("catch"),
CHAR("char", Tokens.Token.Tag.NAMED),
CLASS("class"),
CONST("const"),
CONTINUE("continue"),
DEFAULT("default"),
DO("do"),
DOUBLE("double", Tokens.Token.Tag.NAMED),
ELSE("else"),
ENUM("enum", Tokens.Token.Tag.NAMED),
EXTENDS("extends"),
FINAL("final"),
FINALLY("finally"),
FLOAT("float", Tokens.Token.Tag.NAMED),
FOR("for"),
GOTO("goto"),
IF("if"),
IMPLEMENTS("implements"),
IMPORT("import"),
INSTANCEOF("instanceof"),
INT("int", Tokens.Token.Tag.NAMED),
INTERFACE("interface"),
LONG("long", Tokens.Token.Tag.NAMED),
NATIVE("native"),
NEW("new"),
PACKAGE("package"),
PRIVATE("private"),
PROTECTED("protected"),
PUBLIC("public"),
RETURN("return"),
SHORT("short", Tokens.Token.Tag.NAMED),
STATIC("static"),
STRICTFP("strictfp"),
SUPER("super", Tokens.Token.Tag.NAMED),
SWITCH("switch"),
SYNCHRONIZED("synchronized"),
THIS("this", Tokens.Token.Tag.NAMED),
THROW("throw"),
THROWS("throws"),
TRANSIENT("transient"),
TRY("try"),
VOID("void", Tokens.Token.Tag.NAMED),
VOLATILE("volatile"),
WHILE("while"),
INTLITERAL(Tokens.Token.Tag.NUMERIC),
LONGLITERAL(Tokens.Token.Tag.NUMERIC),
FLOATLITERAL(Tokens.Token.Tag.NUMERIC),
DOUBLELITERAL(Tokens.Token.Tag.NUMERIC),
CHARLITERAL(Tokens.Token.Tag.NUMERIC),
STRINGLITERAL(Tokens.Token.Tag.STRING),
TRUE("true", Tokens.Token.Tag.NAMED),
FALSE("false", Tokens.Token.Tag.NAMED),
NULL("null", Tokens.Token.Tag.NAMED),
UNDERSCORE("_", Tokens.Token.Tag.NAMED),
ARROW("->"),
COLCOL("::"),
LPAREN("("),
RPAREN(")"),
LBRACE("{"),
RBRACE("}"),
LBRACKET("["),
RBRACKET("]"),
SEMI(";"),
COMMA(","),
DOT("."),
ELLIPSIS("..."),
EQ("="),
GT(">"),
LT("<"),
BANG("!"),
TILDE("~"),
QUES("?"),
COLON(":"),
EQEQ("=="),
LTEQ("<="),
GTEQ(">="),
BANGEQ("!="),
AMPAMP("&&"),
BARBAR("||"),
PLUSPLUS("++"),
SUBSUB("--"),
PLUS("+"),
SUB("-"),
STAR("*"),
SLASH("/"),
AMP("&"),
BAR("|"),
CARET("^"),
PERCENT("%"),
LTLT("<<"),
GTGT(">>"),
GTGTGT(">>>"),
PLUSEQ("+="),
SUBEQ("-="),
STAREQ("*="),
SLASHEQ("/="),
AMPEQ("&="),
BAREQ("|="),
CARETEQ("^="),
PERCENTEQ("%="),
LTLTEQ("<<="),
GTGTEQ(">>="),
GTGTGTEQ(">>>="),
MONKEYS_AT("@"),
CUSTOM;
....
}
源码：
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//
package com.sun.tools.javac.parser;
import com.sun.tools.javac.api.Formattable;
import com.sun.tools.javac.api.Messages;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Filter;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.util.Context.Key;
import java.util.Iterator;
import java.util.Locale;
public class Tokens {
private final Names names;
private final Tokens.TokenKind[] key;
private int maxKey = 0;
private Name[] tokenName = new Name[Tokens.TokenKind.values().length];
public static final Key tokensKey = new Key();
public static final Tokens.Token DUMMY;
public static Tokens instance(Context var0) {
Tokens var1 = (Tokens)var0.get(tokensKey);
if(var1 == null) {
var1 = new Tokens(var0);
}
return var1;
}
protected Tokens(Context var1) {
var1.put(tokensKey, this);
this.names = Names.instance(var1);
Tokens.TokenKind[] var2 = Tokens.TokenKind.values();
int var3 = var2.length;
int var4;
Tokens.TokenKind var5;
for(var4 = 0; var4 < var3; ++var4) {
var5 = var2[var4];
if(var5.name != null) {
this.enterKeyword(var5.name, var5);
} else {
this.tokenName[var5.ordinal()] = null;
}
}
this.key = new Tokens.TokenKind[this.maxKey + 1];
for(int var6 = 0; var6 <= this.maxKey; ++var6) {
this.key[var6] = Tokens.TokenKind.IDENTIFIER;
}
var2 = Tokens.TokenKind.values();
var3 = var2.length;
for(var4 = 0; var4 < var3; ++var4) {
var5 = var2[var4];
if(var5.name != null) {
this.key[this.tokenName[var5.ordinal()].getIndex()] = var5;
}
}
}
private void enterKeyword(String var1, Tokens.TokenKind var2) {
Name var3 = this.names.fromString(var1);
this.tokenName[var2.ordinal()] = var3;
if(var3.getIndex() > this.maxKey) {
this.maxKey = var3.getIndex();
}
}
Tokens.TokenKind lookupKind(Name var1) {
return var1.getIndex() > this.maxKey?Tokens.TokenKind.IDENTIFIER:this.key[var1.getIndex()];
}
Tokens.TokenKind lookupKind(String var1) {
return this.lookupKind(this.names.fromString(var1));
}
static {
DUMMY = new Tokens.Token(Tokens.TokenKind.ERROR, 0, 0, (List)null);
}
static final class NumericToken extends Tokens.StringToken {
public final int radix;
public NumericToken(Tokens.TokenKind var1, int var2, int var3, String var4, int var5, List var6) {
super(var1, var2, var3, var4, var6);
this.radix = var5;
}
protected void checkKind() {
if(this.kind.tag != Tokens.Token.Tag.NUMERIC) {
throw new AssertionError("Bad token kind - expected " + Tokens.Token.Tag.NUMERIC);
}
}
public int radix() {
return this.radix;
}
}
static class StringToken extends Tokens.Token {
public final String stringVal;
public StringToken(Tokens.TokenKind var1, int var2, int var3, String var4, List var5) {
super(var1, var2, var3, var5);
this.stringVal = var4;
}
protected void checkKind() {
if(this.kind.tag != Tokens.Token.Tag.STRING) {
throw new AssertionError("Bad token kind - expected " + Tokens.Token.Tag.STRING);
}
}
public String stringVal() {
return this.stringVal;
}
}
static final class NamedToken extends Tokens.Token {
public final Name name;
public NamedToken(Tokens.TokenKind var1, int var2, int var3, Name var4, List var5) {
super(var1, var2, var3, var5);
this.name = var4;
}
protected void checkKind() {
if(this.kind.tag != Tokens.Token.Tag.NAMED) {
throw new AssertionError("Bad token kind - expected " + Tokens.Token.Tag.NAMED);
}
}
public Name name() {
return this.name;
}
}
public static class Token {
public final Tokens.TokenKind kind;
public final int pos;
public final int endPos;
public final List comments;
Token(Tokens.TokenKind var1, int var2, int var3, List var4) {
this.kind = var1;
this.pos = var2;
this.endPos = var3;
this.comments = var4;
this.checkKind();
}
Tokens.Token[] split(Tokens var1) {
if(this.kind.name.length() >= 2 && this.kind.tag == Tokens.Token.Tag.DEFAULT) {
Tokens.TokenKind var2 = var1.lookupKind(this.kind.name.substring(0, 1));
Tokens.TokenKind var3 = var1.lookupKind(this.kind.name.substring(1));
if(var2 != null && var3 != null) {
return new Tokens.Token[]{new Tokens.Token(var2, this.pos, this.pos + var2.name.length(), this.comments), new Tokens.Token(var3, this.pos + var2.name.length(), this.endPos, (List)null)};
} else {
throw new AssertionError("Cant split - bad subtokens");
}
} else {
throw new AssertionError("Cant split" + this.kind);
}
}
protected void checkKind() {
if(this.kind.tag != Tokens.Token.Tag.DEFAULT) {
throw new AssertionError("Bad token kind - expected " + Tokens.Token.Tag.STRING);
}
}
public Name name() {
throw new UnsupportedOperationException();
}
public String stringVal() {
throw new UnsupportedOperationException();
}
public int radix() {
throw new UnsupportedOperationException();
}
public Tokens.Comment comment(Tokens.Comment.CommentStyle var1) {
List var2 = this.getComments(Tokens.Comment.CommentStyle.JAVADOC);
return var2.isEmpty()?null:(Tokens.Comment)var2.head;
}
public boolean deprecatedFlag() {
Iterator var1 = this.getComments(Tokens.Comment.CommentStyle.JAVADOC).iterator();
Tokens.Comment var2;
do {
if(!var1.hasNext()) {
return false;
}
var2 = (Tokens.Comment)var1.next();
} while(!var2.isDeprecated());
return true;
}
private List getComments(Tokens.Comment.CommentStyle var1) {
if(this.comments == null) {
return List.nil();
} else {
ListBuffer var2 = new ListBuffer();
Iterator var3 = this.comments.iterator();
while(var3.hasNext()) {
Tokens.Comment var4 = (Tokens.Comment)var3.next();
if(var4.getStyle() == var1) {
var2.add(var4);
}
}
return var2.toList();
}
}
static enum Tag {
DEFAULT,
NAMED,
STRING,
NUMERIC;
private Tag() {
}
}
}
public interface Comment {
String getText();
int getSourcePos(int var1);
Tokens.Comment.CommentStyle getStyle();
boolean isDeprecated();
public static enum CommentStyle {
LINE,
BLOCK,
JAVADOC;
private CommentStyle() {
}
}
}
public static enum TokenKind implements Formattable, Filter {
EOF,
ERROR,
IDENTIFIER(Tokens.Token.Tag.NAMED),
ABSTRACT("abstract"),
ASSERT("assert", Tokens.Token.Tag.NAMED),
BOOLEAN("boolean", Tokens.Token.Tag.NAMED),
BREAK("break"),
BYTE("byte", Tokens.Token.Tag.NAMED),
CASE("case"),
CATCH("catch"),
CHAR("char", Tokens.Token.Tag.NAMED),
CLASS("class"),
CONST("const"),
CONTINUE("continue"),
DEFAULT("default"),
DO("do"),
DOUBLE("double", Tokens.Token.Tag.NAMED),
ELSE("else"),
ENUM("enum", Tokens.Token.Tag.NAMED),
EXTENDS("extends"),
FINAL("final"),
FINALLY("finally"),
FLOAT("float", Tokens.Token.Tag.NAMED),
FOR("for"),
GOTO("goto"),
IF("if"),
IMPLEMENTS("implements"),
IMPORT("import"),
INSTANCEOF("instanceof"),
INT("int", Tokens.Token.Tag.NAMED),
INTERFACE("interface"),
LONG("long", Tokens.Token.Tag.NAMED),
NATIVE("native"),
NEW("new"),
PACKAGE("package"),
PRIVATE("private"),
PROTECTED("protected"),
PUBLIC("public"),
RETURN("return"),
SHORT("short", Tokens.Token.Tag.NAMED),
STATIC("static"),
STRICTFP("strictfp"),
SUPER("super", Tokens.Token.Tag.NAMED),
SWITCH("switch"),
SYNCHRONIZED("synchronized"),
THIS("this", Tokens.Token.Tag.NAMED),
THROW("throw"),
THROWS("throws"),
TRANSIENT("transient"),
TRY("try"),
VOID("void", Tokens.Token.Tag.NAMED),
VOLATILE("volatile"),
WHILE("while"),
INTLITERAL(Tokens.Token.Tag.NUMERIC),
LONGLITERAL(Tokens.Token.Tag.NUMERIC),
FLOATLITERAL(Tokens.Token.Tag.NUMERIC),
DOUBLELITERAL(Tokens.Token.Tag.NUMERIC),
CHARLITERAL(Tokens.Token.Tag.NUMERIC),
STRINGLITERAL(Tokens.Token.Tag.STRING),
TRUE("true", Tokens.Token.Tag.NAMED),
FALSE("false", Tokens.Token.Tag.NAMED),
NULL("null", Tokens.Token.Tag.NAMED),
UNDERSCORE("_", Tokens.Token.Tag.NAMED),
ARROW("->"),
COLCOL("::"),
LPAREN("("),
RPAREN(")"),
LBRACE("{"),
RBRACE("}"),
LBRACKET("["),
RBRACKET("]"),
SEMI(";"),
COMMA(","),
DOT("."),
ELLIPSIS("..."),
EQ("="),
GT(">"),
LT("<"),
BANG("!"),
TILDE("~"),
QUES("?"),
COLON(":"),
EQEQ("=="),
LTEQ("<="),
GTEQ(">="),
BANGEQ("!="),
AMPAMP("&&"),
BARBAR("||"),
PLUSPLUS("++"),
SUBSUB("--"),
PLUS("+"),
SUB("-"),
STAR("*"),
SLASH("/"),
AMP("&"),
BAR("|"),
CARET("^"),
PERCENT("%"),
LTLT("<<"),
GTGT(">>"),
GTGTGT(">>>"),
PLUSEQ("+="),
SUBEQ("-="),
STAREQ("*="),
SLASHEQ("/="),
AMPEQ("&="),
BAREQ("|="),
CARETEQ("^="),
PERCENTEQ("%="),
LTLTEQ("<<="),
GTGTEQ(">>="),
GTGTGTEQ(">>>="),
MONKEYS_AT("@"),
CUSTOM;
public final String name;
public final Tokens.Token.Tag tag;
private TokenKind() {
this((String)null, Tokens.Token.Tag.DEFAULT);
}
private TokenKind(String var3) {
this(var3, Tokens.Token.Tag.DEFAULT);
}
private TokenKind(Tokens.Token.Tag var3) {
this((String)null, var3);
}
private TokenKind(String var3, Tokens.Token.Tag var4) {
this.name = var3;
this.tag = var4;
}
public String toString() {
switch(null.$SwitchMap$com$sun$tools$javac$parser$Tokens$TokenKind[this.ordinal()]) {
case 1:
return "token.identifier";
case 2:
return "token.character";
case 3:
return "token.string";
case 4:
return "token.integer";
case 5:
return "token.long-integer";
case 6:
return "token.float";
case 7:
return "token.double";
case 8:
return "token.bad-symbol";
case 9:
return "token.end-of-input";
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
case 17:
case 18:
return "'" + this.name + "'";
default:
return this.name;
}
}
public String getKind() {
return "Token";
}
public String toString(Locale var1, Messages var2) {
return this.name != null?this.toString():var2.getLocalizedString(var1, "compiler.misc." + this.toString(), new Object[0]);
}
public boolean accepts(Tokens.TokenKind var1) {
return this == var1;
}
}
}