/**
* Fix for Lambda expressions without variables.
*
* Andreas Dangel 11/2014
*====================================================================
* Fix for Lambda expressions with two or three variables.
*
* Andreas Dangel 07/2014
*====================================================================
* Added support for Java 8 language constructs.
*
* Andreas Dangel 01/2014
* ===================================================================
* Fix ForStatement to allow Annotations within the initializer.
*
* Andreas Dangel 01/2013
* ===================================================================
* Fix wrong consumption of modifiers (e.g. "final") in a for-each loop.
* Check for wrong java usage when catching multiple exceptions.
*
* Andreas Dangel 12/2012
* ===================================================================
* Enhance grammar to use LocalVariableDeclaration in a for-each loop.
* This enhances the symbol table to recognize variables declared in such
* a for-each loop.
*
* Andreas Dangel 10/2012
* ===================================================================
* Fix parser problem #3530124 with generics
*
* Modified the grammar, so that the different usages of generics work.
* Adjusted the rules, that use "super", as super is no longer a PrimarySuffix.
* It's now either a ExplicitConstructorInvocation or a PrimaryPrefix.
* See also test case ParserCornersTest/testParsersCases
*
* Andreas Dangel 05/2012
* ===================================================================
* Added support for Java 7 language constructs
*
* Dinesh Bolkensteyn (SonarSource), 10/2011
* ===================================================================
* Changed the CastLookahead production to use 3 lookaheads for primitive types as suggested by Andreas Dangel
*
* Brian Remedios 07/2011
* ===================================================================
* Added in support for assert as a name using lookaheads
*
* Tom Copeland, 09/03
* ===================================================================
* Copied over the changes made by Andrea Gini and Marco Savard to
* support JDK 1.4 language constructs, i.e., asserts.
* See the java1_4c.jj distributed in the javacc2.1/examples/JavaGrammers directory.
* Made numerous other modifications to support PMD.
*
* Tom Copeland, 6/02
* ===================================================================
* This file is a modified version of one originally found in the
* VTransformer Examples directory of JavaCC1_1. It has been
* modified to accept Java source code for Java 1.2. Basically,
* this means a new key word was added, 'strictfp', and that keyword
* added to the appropriate productions and LOOKAHEADs (where other,
* similar keywords are listed as possible choices). This involved
* changing 11 lines.
*
* Some other minor changes were made, which can be found by doing
* a search on 'DW, 7/99'.
*
* The goal of this effort was for the grammar to be able to parse
* any legal Java 1.2 source code. It does not reject all illegal
* cases, but neither did the original. Plus, when it comes to
* the new 'strictfp' keyword, the Java Compiler from Sun (JDK1.2.1)
* also does not reject all illegal cases, as defined by the
* "Updates" document found at
* http://java.sun.com/docs/books/jls/strictfp-changes.pdf
* (see the testcases.txt file for details).
*
* David Williams, 7/99
* ===================================================================
*
*
* Copyright (C) 1996, 1997 Sun Microsystems Inc.
*
* Use of this file and the system it is part of is constrained by the
* file COPYRIGHT in the root directory of this system. You may, however,
* make any modifications you wish to this file.
*
* Java files generated by running JavaCC on this file (or modified versions
* of this file) may be used in exactly the same manner as Java files
* generated from any grammar developed by you.
*
* Author: Sriram Sankar
* Date: 3/5/97
*
* This file contains a Java grammar and actions that implement a front-end.
*/
options {
JAVA_UNICODE_ESCAPE = true;
CACHE_TOKENS = true;
STATIC = false;
USER_CHAR_STREAM = true;
JDK_VERSION = "1.5";
MULTI = true;
VISITOR = true;
NODE_USES_PARSER = true;
NODE_PACKAGE="net.sourceforge.pmd.lang.java.ast";
//DEBUG_PARSER = true;
//DEBUG_LOOKAHEAD = true;
}
PARSER_BEGIN(JavaParser)
package net.sourceforge.pmd.lang.java.ast;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import net.sourceforge.pmd.lang.ast.CharStream;
import net.sourceforge.pmd.lang.ast.TokenMgrError;
public class JavaParser {
private int jdkVersion = 0;
public void setJdkVersion(int jdkVersion) {
this.jdkVersion = jdkVersion;
}
private void throwParseException(String message) {
int line = -1;
int col = -1;
if (jj_lastpos != null) {
line = jj_lastpos.beginLine;
col = jj_lastpos.beginColumn;
}
throw new ParseException("Line " + line + ", Column " + col + ": " + message);
}
private void checkForBadAssertUsage(String in, String usage) {
if (jdkVersion > 3 && in.equals("assert")) {
throwParseException("Can't use 'assert' as " + usage + " when running in JDK 1.4 mode!");
}
}
private void checkForBadStaticImportUsage() {
if (jdkVersion < 5) {
throwParseException("Can't use static imports when running in JDK 1.4 mode!");
}
}
private void checkForBadAnnotationUsage() {
if (jdkVersion < 5) {
throwParseException("Can't use annotations when running in JDK 1.4 mode!");
}
}
private void checkForBadGenericsUsage() {
if (jdkVersion < 5) {
throwParseException("Can't use generics unless running in JDK 1.5 mode!");
}
}
private void checkForBadVariableArgumentsUsage() {
if (jdkVersion < 5) {
throwParseException("Can't use variable arguments (varargs) when running in JDK 1.4 mode!");
}
}
private void checkForBadJDK15ForLoopSyntaxArgumentsUsage() {
if (jdkVersion < 5) {
throwParseException("Can't use JDK 1.5 for loop syntax when running in JDK 1.4 mode!");
}
}
private void checkForBadEnumUsage(String in, String usage) {
if (jdkVersion >= 5 && in.equals("enum")) {
throwParseException("Can't use 'enum' as " + usage + " when running in JDK 1.5 mode!");
}
}
private void checkForBadHexFloatingPointLiteral() {
if (jdkVersion < 5) {
throwParseException("Can't use hexadecimal floating point literals in pre-JDK 1.5 target");
}
}
private void checkForBadNumericalLiteralslUsage(Token token) {
if (jdkVersion < 7) {
if (token.image.contains("_")) {
throwParseException("Can't use underscores in numerical literals when running in JDK inferior to 1.7 mode!");
}
if (token.image.startsWith("0b") || token.image.startsWith("0B")) {
throwParseException("Can't use binary numerical literals when running in JDK inferior to 1.7 mode!");
}
}
}
private void checkForBadDiamondUsage() {
if (jdkVersion < 7) {
throwParseException("Cannot use the diamond generic notation when running in JDK inferior to 1.7 mode!");
}
}
private void checkForBadTryWithResourcesUsage() {
if (jdkVersion < 7) {
throwParseException("Cannot use the try-with-resources notation when running in JDK inferior to 1.7 mode!");
}
}
private void checkForBadMultipleExceptionsCatching() {
if (jdkVersion < 7) {
throwParseException("Cannot catch multiple exceptions when running in JDK inferior to 1.7 mode!");
}
}
private void checkForBadLambdaUsage() {
if (jdkVersion < 8) {
throwParseException("Cannot use lambda expressions when running in JDK inferior to 1.8 mode!");
}
}
private void checkForBadMethodReferenceUsage() {
if (jdkVersion < 8) {
throwParseException("Cannot use method references when running in JDK inferior to 1.8 mode!");
}
}
private void checkForBadDefaultImplementationUsage() {
if (jdkVersion < 8) {
throwParseException("Cannot use default implementations in interfaces when running in JDK inferior to 1.8 mode!");
}
}
private void checkForBadIntersectionTypesInCasts() {
if (jdkVersion < 8) {
throwParseException("Cannot use intersection types in casts when running in JDK inferior to 1.8 mode!");
}
}
private void checkForBadTypeAnnotations() {
if (jdkVersion < 8) {
throwParseException("Cannot use type annotations when running in JDK inferior to 1.8 mode!");
}
}
// This is a semantic LOOKAHEAD to determine if we're dealing with an assert
// Note that this can't be replaced with a syntactic lookahead
// since "assert" isn't a string literal token
private boolean isNextTokenAnAssert() {
boolean res = getToken(1).image.equals("assert");
if (res && jdkVersion <= 3 && getToken(2).image.equals("(")) {
res = false;
}
return res;
}
private boolean isPrecededByComment(Token tok) {
boolean res = false;
while (!res && tok.specialToken != null) {
tok = tok.specialToken;
res = tok.kind == SINGLE_LINE_COMMENT ||
tok.kind == FORMAL_COMMENT ||
tok.kind == MULTI_LINE_COMMENT;
}
return res;
}
public Map<Integer, String> getSuppressMap() {
return token_source.getSuppressMap();
}
public void setSuppressMarker(String marker) {
token_source.setSuppressMarker(marker);
}
}
PARSER_END(JavaParser)
TOKEN_MGR_DECLS :
{
protected List<Comment> comments = new ArrayList<Comment>();
}
/* WHITE SPACE */
SPECIAL_TOKEN :
{
" " | "\t" | "\n" | "\r" | "\f"
}
SPECIAL_TOKEN :
{
< SINGLE_LINE_COMMENT: "//"(~["\n","\r"])* ("\n"|"\r"|"\r\n")? >
{
int startOfNOPMD = matchedToken.image.indexOf(suppressMarker);
if (startOfNOPMD != -1) {
suppressMap.put(matchedToken.beginLine, matchedToken.image.substring(startOfNOPMD + suppressMarker.length()));
}
comments.add(new SingleLineComment(matchedToken));
}
}
/* COMMENTS */
MORE :
{
<"/**" ~["/"]> { input_stream.backup(1); } : IN_FORMAL_COMMENT
|
"/*" : IN_MULTI_LINE_COMMENT
}
<IN_FORMAL_COMMENT>
SPECIAL_TOKEN :
{
<FORMAL_COMMENT: "*/" > { comments.add(new FormalComment(matchedToken)); } : DEFAULT
}
<IN_MULTI_LINE_COMMENT>
SPECIAL_TOKEN :
{
<MULTI_LINE_COMMENT: "*/" > { comments.add(new MultiLineComment(matchedToken)); } : DEFAULT
}
<IN_FORMAL_COMMENT,IN_MULTI_LINE_COMMENT>
MORE :
{
< ~[] >
}
/* RESERVED WORDS AND LITERALS */
TOKEN :
{
< ABSTRACT: "abstract" >
| < BOOLEAN: "boolean" >
| < BREAK: "break" >
| < BYTE: "byte" >
| < CASE: "case" >
| < CATCH: "catch" >
| < CHAR: "char" >
| < CLASS: "class" >
| < CONST: "const" >
| < CONTINUE: "continue" >
| < _DEFAULT: "default" >
| < DO: "do" >
| < DOUBLE: "double" >
| < ELSE: "else" >
| < EXTENDS: "extends" >
| < FALSE: "false" >
| < FINAL: "final" >
| < FINALLY: "finally" >
| < FLOAT: "float" >
| < FOR: "for" >
| < GOTO: "goto" >
| < IF: "if" >
| < IMPLEMENTS: "implements" >
| < IMPORT: "import" >
| < INSTANCEOF: "instanceof" >
| < INT: "int" >
| < INTERFACE: "interface" >
| < LONG: "long" >
| < NATIVE: "native" >
| < NEW: "new" >
| < NULL: "null" >
| < PACKAGE: "package">
| < PRIVATE: "private" >
| < PROTECTED: "protected" >
| < PUBLIC: "public" >
| < RETURN: "return" >
| < SHORT: "short" >
| < STATIC: "static" >
| < SUPER: "super" >
| < SWITCH: "switch" >
| < SYNCHRONIZED: "synchronized" >
| < THIS: "this" >
| < THROW: "throw" >
| < THROWS: "throws" >
| < TRANSIENT: "transient" >
| < TRUE: "true" >
| < TRY: "try" >
| < VOID: "void" >
| < VOLATILE: "volatile" >
| < WHILE: "while" >
| < STRICTFP: "strictfp" >
}
/* LITERALS */
TOKEN :
{
< INTEGER_LITERAL:
<DECIMAL_LITERAL> (["l","L"])?
| <HEX_LITERAL> (["l","L"])?
| <BINARY_LITERAL> (["l","L"])?
| <OCTAL_LITERAL> (["l","L"])?
>
|
< #DECIMAL_LITERAL: (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) >
|
< #HEX_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"]((["0"-"9","a"-"f","A"-"F","_"])*["0"-"9","a"-"f","A"-"F"])?) >
|
< #BINARY_LITERAL: "0" ["b","B"] (["0","1"]((["0","1","_"])*["0","1"])?) >
|
< #OCTAL_LITERAL: "0" (["0"-"7"]((["0"-"7","_"])*["0"-"7"])?) >
|
< FLOATING_POINT_LITERAL:
(["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) "." (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?)? (<EXPONENT>)? (["f","F","d","D"])?
| "." (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) (<EXPONENT>)? (["f","F","d","D"])?
| (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) <EXPONENT> (["f","F","d","D"])?
| (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) (<EXPONENT>)? ["f","F","d","D"]
>
|
< HEX_FLOATING_POINT_LITERAL:
(<HEX_LITERAL> (".")? | "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"]((["0"-"9","a"-"f","A"-"F","_"])*["0"-"9","a"-"f","A"-"F"])?)? "." (["0"-"9","a"-"f","A"-"F"]((["0"-"9","a"-"f","A"-"F","_"])*["0"-"9","a"-"f","A"-"F"])?)) ["p","P"] (["+","-"])? (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) (["f","F","d","D"])?
>
|
< #EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"]((["0"-"9","_"])*["0"-"9"])?) >
|
< CHARACTER_LITERAL:
"'"
( (~["'","\\","\n","\r"])
| ("\\"
( ["n","t","b","r","f","\\","'","\""]
| ["0"-"7"] ( ["0"-"7"] )?
| ["0"-"3"] ["0"-"7"] ["0"-"7"]
)
)
)
"'"
>
|
< STRING_LITERAL:
"\""
( (~["\"","\\","\n","\r"])
| ("\\"
( ["n","t","b","r","f","\\","'","\""]
| ["0"-"7"] ( ["0"-"7"] )?
| ["0"-"3"] ["0"-"7"] ["0"-"7"]
)
)
)*
"\""
>
}
/* IDENTIFIERS */
TOKEN :
{
< IDENTIFIER: <LETTER> (<PART_LETTER>)* >
|
< #LETTER:
[ // all chars for which Character.isIdentifierStart is true
"$",
"A"-"Z",
"_",
"a"-"z",
"\u00a2"-"\u00a5",
"\u00aa",
"\u00b5",
"\u00ba",
"\u00c0"-"\u00d6",
"\u00d8"-"\u00f6",
"\u00f8"-"\u021f",
"\u0222"-"\u0233",
"\u0250"-"\u02ad",
"\u02b0"-"\u02b8",
"\u02bb"-"\u02c1",
"\u02d0"-"\u02d1",
"\u02e0"-"\u02e4",
"\u02ee",
"\u037a",
"\u0386",
"\u0388"-"\u038a",
"\u038c",
"\u038e"-"\u03a1",
"\u03a3"-"\u03ce",
"\u03d0"-"\u03d7",
"\u03da"-"\u03f3",
"\u0400"-"\u0481",
"\u048c"-"\u04c4",
"\u04c7"-"\u04c8",
"\u04cb"-"\u04cc",
"\u04d0"-"\u04f5",
"\u04f8"-"\u04f9",
"\u0531"-"\u0556",
"\u0559",
"\u0561"-"\u0587",
"\u05d0"-"\u05ea",
"\u05f0"-"\u05f2",
"\u0621"-"\u063a",
"\u0640"-"\u064a",
"\u0671"-"\u06d3",
"\u06d5",
"\u06e5"-"\u06e6",
"\u06fa"-"\u06fc",
"\u0710",
"\u0712"-"\u072c",
"\u0780"-"\u07a5",
"\u0905"-"\u0939",
"\u093d",
"\u0950",
"\u0958"-"\u0961",
"\u0985"-"\u098c",
"\u098f"-"\u0990",
"\u0993"-"\u09a8",
"\u09aa"-"\u09b0",
"\u09b2",
"\u09b6"-"\u09b9",
"\u09dc"-"\u09dd",
"\u09df"-"\u09e1",
"\u09f0"-"\u09f3",
"\u0a05"-"\u0a0a",
"\u0a0f"-"\u0a10",
"\u0a13"-"\u0a28",
"\u0a2a"-"\u0a30",
"\u0a32"-"\u0a33",
"\u0a35"-"\u0a36",
"\u0a38"-"\u0a39",
"\u0a59"-"\u0a5c",
"\u0a5e",
"\u0a72"-"\u0a74",
"\u0a85"-"\u0a8b",
"\u0a8d",
"\u0a8f"-"\u0a91",
"\u0a93"-"\u0aa8",
"\u0aaa"-"\u0ab0",
"\u0ab2"-"\u0ab3",
"\u0ab5"-"\u0ab9",
"\u0abd",
"\u0ad0",
"\u0ae0",
"\u0b05"-"\u0b0c",
"\u0b0f"-"\u0b10",
"\u0b13"-"\u0b28",
"\u0b2a"-"\u0b30",
"\u0b32"-"\u0b33",
"\u0b36"-"\u0b39",
"\u0b3d",
"\u0b5c"-"\u0b5d",
"\u0b5f"-"\u0b61",
"\u0b85"-"\u0b8a",
"\u0b8e"-"\u0b90",
"\u0b92"-"\u0b95",
"\u0b99"-"\u0b9a",
"\u0b9c",
"\u0b9e"-"\u0b9f",
"\u0ba3"-"\u0ba4",
"\u0ba8"-"\u0baa",
"\u0bae"-"\u0bb5",
"\u0bb7"-"\u0bb9",
"\u0c05"-"\u0c0c",
"\u0c0e"-"\u0c10",
"\u0c12"-"\u0c28",
"\u0c2a"-"\u0c33",
"\u0c35"-"\u0c39",
"\u0c60"-"\u0c61",
"\u0c85"-"\u0c8c",
"\u0c8e"-"\u0c90",
"\u0c92"-"\u0ca8",
"\u0caa"-"\u0cb3",
"\u0cb5"-"\u0cb9",
"\u0cde",
"\u0ce0"-"\u0ce1",
"\u0d05"-"\u0d0c",
"\u0d0e"-"\u0d10",
"\u0d12"-"\u0d28",
"\u0d2a"-"\u0d39",
"\u0d60"-"\u0d61",
"\u0d85"-"\u0d96",
"\u0d9a"-"\u0db1",
"\u0db3"-"\u0dbb",
"\u0dbd",
"\u0dc0"-"\u0dc6",
"\u0e01"-"\u0e30",
"\u0e32"-"\u0e33",
"\u0e3f"-"\u0e46",
"\u0e81"-"\u0e82",
"\u0e84",
"\u0e87"-"\u0e88",
"\u0e8a",
"\u0e8d",
"\u0e94"-"\u0e97",
"\u0e99"-"\u0e9f",
"\u0ea1"-"\u0ea3",
"\u0ea5",
"\u0ea7",
"\u0eaa"-"\u0eab",
"\u0ead"-"\u0eb0",
"\u0eb2"-"\u0eb3",
"\u0ebd",
"\u0ec0"-"\u0ec4",
"\u0ec6",
"\u0edc"-"\u0edd",
"\u0f00",
"\u0f40"-"\u0f47",
"\u0f49"-"\u0f6a",
"\u0f88"-"\u0f8b",
"\u1000"-"\u1021",
"\u1023"-"\u1027",
"\u1029"-"\u102a",
"\u1050"-"\u1055",
"\u10a0"-"\u10c5",
"\u10d0"-"\u10f6",
"\u1100"-"\u1159",
"\u115f"-"\u11a2",
"\u11a8"-"\u11f9",
"\u1200"-"\u1206",
"\u1208"-"\u1246",
"\u1248",
"\u124a"-"\u124d",
"\u1250"-"\u1256",
"\u1258",
"\u125a"-"\u125d",
"\u1260"-"\u1286",
"\u1288",
"\u128a"-"\u128d",
"\u1290"-"\u12ae",
"\u12b0",
"\u12b2"-"\u12b5",
"\u12b8"-"\u12be",
"\u12c0",
"\u12c2"-"\u12c5",
"\u12c8"-"\u12ce",
"\u12d0"-"\u12d6",
"\u12d8"-"\u12ee",
"\u12f0"-"\u130e",
"\u1310",
"\u1312"-"\u1315",
"\u1318"-"\u131e",
"\u1320"-"\u1346",
"\u1348"-"\u135a",
"\u13a0"-"\u13f4",
"\u1401"-"\u166c",
"\u166f"-"\u1676",
"\u1681"-"\u169a",
"\u16a0"-"\u16ea",
"\u1780"-"\u17b3",
"\u17db",
"\u1820"-"\u1877",
"\u1880"-"\u18a8",
"\u1e00"-"\u1e9b",
"\u1ea0"-"\u1ef9",
"\u1f00"-"\u1f15",
"\u1f18"-"\u1f1d",
"\u1f20"-"\u1f45",
"\u1f48"-"\u1f4d",
"\u1f50"-"\u1f57",
"\u1f59",
"\u1f5b",
"\u1f5d",
"\u1f5f"-"\u1f7d",
"\u1f80"-"\u1fb4",
"\u1fb6"-"\u1fbc",
"\u1fbe",
"\u1fc2"-"\u1fc4",
"\u1fc6"-"\u1fcc",
"\u1fd0"-"\u1fd3",
"\u1fd6"-"\u1fdb",
"\u1fe0"-"\u1fec",
"\u1ff2"-"\u1ff4",
"\u1ff6"-"\u1ffc",
"\u203f"-"\u2040",
"\u207f",
"\u20a0"-"\u20af",
"\u2102",
"\u2107",
"\u210a"-"\u2113",
"\u2115",
"\u2119"-"\u211d",
"\u2124",
"\u2126",
"\u2128",
"\u212a"-"\u212d",
"\u212f"-"\u2131",
"\u2133"-"\u2139",
"\u2160"-"\u2183",
"\u3005"-"\u3007",
"\u3021"-"\u3029",
"\u3031"-"\u3035",
"\u3038"-"\u303a",
"\u3041"-"\u3094",
"\u309d"-"\u309e",
"\u30a1"-"\u30fe",
"\u3105"-"\u312c",
"\u3131"-"\u318e",
"\u31a0"-"\u31b7",
"\u3400"-"\u4db5",
"\u4e00"-"\u9fa5",
"\ua000"-"\ua48c",
"\uac00"-"\ud7a3",
"\uf900"-"\ufa2d",
"\ufb00"-"\ufb06",
"\ufb13"-"\ufb17",
"\ufb1d",
"\ufb1f"-"\ufb28",
"\ufb2a"-"\ufb36",
"\ufb38"-"\ufb3c",
"\ufb3e",
"\ufb40"-"\ufb41",
"\ufb43"-"\ufb44",
"\ufb46"-"\ufbb1",
"\ufbd3"-"\ufd3d",
"\ufd50"-"\ufd8f",
"\ufd92"-"\ufdc7",
"\ufdf0"-"\ufdfb",
"\ufe33"-"\ufe34",
"\ufe4d"-"\ufe4f",
"\ufe69",
"\ufe70"-"\ufe72",
"\ufe74",
"\ufe76"-"\ufefc",
"\uff04",
"\uff21"-"\uff3a",
"\uff3f",
"\uff41"-"\uff5a",
"\uff65"-"\uffbe",
"\uffc2"-"\uffc7",
"\uffca"-"\uffcf",
"\uffd2"-"\uffd7",
"\uffda"-"\uffdc",
"\uffe0"-"\uffe1",
"\uffe5"-"\uffe6"
]
>
|
< #PART_LETTER:
[ // all chars for which Character.isIdentifierPart is true
"\u0000"-"\u0008",
"\u000e"-"\u001b",
"$",
"0"-"9",
"A"-"Z",
"_",
"a"-"z",
"\u007f"-"\u009f",
"\u00a2"-"\u00a5",
"\u00aa",
"\u00b5",
"\u00ba",
"\u00c0"-"\u00d6",
"\u00d8"-"\u00f6",
"\u00f8"-"\u021f",
"\u0222"-"\u0233",
"\u0250"-"\u02ad",
"\u02b0"-"\u02b8",
"\u02bb"-"\u02c1",
"\u02d0"-"\u02d1",
"\u02e0"-"\u02e4",
"\u02ee",
"\u0300"-"\u034e",
"\u0360"-"\u0362",
"\u037a",
"\u0386",
"\u0388"-"\u038a",
"\u038c",
"\u038e"-"\u03a1",
"\u03a3"-"\u03ce",
"\u03d0"-"\u03d7",
"\u03da"-"\u03f3",
"\u0400"-"\u0481",
"\u0483"-"\u0486",
"\u048c"-"\u04c4",
"\u04c7"-"\u04c8",
"\u04cb"-"\u04cc",
"\u04d0"-"\u04f5",
"\u04f8"-"\u04f9",
"\u0531"-"\u0556",
"\u0559",
"\u0561"-"\u0587",
"\u0591"-"\u05a1",
"\u05a3"-"\u05b9",
"\u05bb"-"\u05bd",
"\u05bf",
"\u05c1"-"\u05c2",
"\u05c4",
"\u05d0"-"\u05ea",
"\u05f0"-"\u05f2",
"\u0621"-"\u063a",
"\u0640"-"\u0655",
"\u0660"-"\u0669",
"\u0670"-"\u06d3",
"\u06d5"-"\u06dc",
"\u06df"-"\u06e8",
"\u06ea"-"\u06ed",
"\u06f0"-"\u06fc",
"\u070f"-"\u072c",
"\u0730"-"\u074a",
"\u0780"-"\u07b0",
"\u0901"-"\u0903",
"\u0905"-"\u0939",
"\u093c"-"\u094d",
"\u0950"-"\u0954",
"\u0958"-"\u0963",
"\u0966"-"\u096f",
"\u0981"-"\u0983",
"\u0985"-"\u098c",
"\u098f"-"\u0990",
"\u0993"-"\u09a8",
"\u09aa"-"\u09b0",
"\u09b2",
"\u09b6"-"\u09b9",
"\u09bc",
"\u09be"-"\u09c4",
"\u09c7"-"\u09c8",
"\u09cb"-"\u09cd",
"\u09d7",
"\u09dc"-"\u09dd",
"\u09df"-"\u09e3",
"\u09e6"-"\u09f3",
"\u0a02",
"\u0a05"-"\u0a0a",
"\u0a0f"-"\u0a10",
"\u0a13"-"\u0a28",
"\u0a2a"-"\u0a30",
"\u0a32"-"\u0a33",
"\u0a35"-"\u0a36",
"\u0a38"-"\u0a39",
"\u0a3c",
"\u0a3e"-"\u0a42",
"\u0a47"-"\u0a48",
"\u0a4b"-"\u0a4d",
"\u0a59"-"\u0a5c",
"\u0a5e",
"\u0a66"-"\u0a74",
"\u0a81"-"\u0a83",
"\u0a85"-"\u0a8b",
"\u0a8d",
"\u0a8f"-"\u0a91",
"\u0a93"-"\u0aa8",
"\u0aaa"-"\u0ab0",
"\u0ab2"-"\u0ab3",
"\u0ab5"-"\u0ab9",
"\u0abc"-"\u0ac5",
"\u0ac7"-"\u0ac9",
"\u0acb"-"\u0acd",
"\u0ad0",
"\u0ae0",
"\u0ae6"-"\u0aef",
"\u0b01"-"\u0b03",
"\u0b05"-"\u0b0c",
"\u0b0f"-"\u0b10",
"\u0b13"-"\u0b28",
"\u0b2a"-"\u0b30",
"\u0b32"-"\u0b33",
"\u0b36"-"\u0b39",
"\u0b3c"-"\u0b43",
"\u0b47"-"\u0b48",
"\u0b4b"-"\u0b4d",
"\u0b56"-"\u0b57",
"\u0b5c"-"\u0b5d",
"\u0b5f"-"\u0b61",
"\u0b66"-"\u0b6f",
"\u0b82"-"\u0b83",
"\u0b85"-"\u0b8a",
"\u0b8e"-"\u0b90",
"\u0b92"-"\u0b95",
"\u0b99"-"\u0b9a",
"\u0b9c",
"\u0b9e"-"\u0b9f",
"\u0ba3"-"\u0ba4",
"\u0ba8"-"\u0baa",
"\u0bae"-"\u0bb5",
"\u0bb7"-"\u0bb9",
"\u0bbe"-"\u0bc2",
"\u0bc6"-"\u0bc8",
"\u0bca"-"\u0bcd",
"\u0bd7",
"\u0be7"-"\u0bef",
"\u0c01"-"\u0c03",
"\u0c05"-"\u0c0c",
"\u0c0e"-"\u0c10",
"\u0c12"-"\u0c28",
"\u0c2a"-"\u0c33",
"\u0c35"-"\u0c39",
"\u0c3e"-"\u0c44",
"\u0c46"-"\u0c48",
"\u0c4a"-"\u0c4d",
"\u0c55"-"\u0c56",
"\u0c60"-"\u0c61",
"\u0c66"-"\u0c6f",
"\u0c82"-"\u0c83",
"\u0c85"-"\u0c8c",
"\u0c8e"-"\u0c90",
"\u0c92"-"\u0ca8",
"\u0caa"-"\u0cb3",
"\u0cb5"-"\u0cb9",
"\u0cbe"-"\u0cc4",
"\u0cc6"-"\u0cc8",
"\u0cca"-"\u0ccd",
"\u0cd5"-"\u0cd6",
"\u0cde",
"\u0ce0"-"\u0ce1",
"\u0ce6"-"\u0cef",
"\u0d02"-"\u0d03",
"\u0d05"-"\u0d0c",
"\u0d0e"-"\u0d10",
"\u0d12"-"\u0d28",
"\u0d2a"-"\u0d39",
"\u0d3e"-"\u0d43",
"\u0d46"-"\u0d48",
"\u0d4a"-"\u0d4d",
"\u0d57",
"\u0d60"-"\u0d61",
"\u0d66"-"\u0d6f",
"\u0d82"-"\u0d83",
"\u0d85"-"\u0d96",
"\u0d9a"-"\u0db1",
"\u0db3"-"\u0dbb",
"\u0dbd",
"\u0dc0"-"\u0dc6",
"\u0dca",
"\u0dcf"-"\u0dd4",
"\u0dd6",
"\u0dd8"-"\u0ddf",
"\u0df2"-"\u0df3",
"\u0e01"-"\u0e3a",
"\u0e3f"-"\u0e4e",
"\u0e50"-"\u0e59",
"\u0e81"-"\u0e82",
"\u0e84",
"\u0e87"-"\u0e88",
"\u0e8a",
"\u0e8d",
"\u0e94"-"\u0e97",
"\u0e99"-"\u0e9f",
"\u0ea1"-"\u0ea3",
"\u0ea5",
"\u0ea7",
"\u0eaa"-"\u0eab",
"\u0ead"-"\u0eb9",
"\u0ebb"-"\u0ebd",
"\u0ec0"-"\u0ec4",
"\u0ec6",
"\u0ec8"-"\u0ecd",
"\u0ed0"-"\u0ed9",
"\u0edc"-"\u0edd",
"\u0f00",
"\u0f18"-"\u0f19",
"\u0f20"-"\u0f29",
"\u0f35",
"\u0f37",
"\u0f39",
"\u0f3e"-"\u0f47",
"\u0f49"-"\u0f6a",
"\u0f71"-"\u0f84",
"\u0f86"-"\u0f8b",
"\u0f90"-"\u0f97",
"\u0f99"-"\u0fbc",
"\u0fc6",
"\u1000"-"\u1021",
"\u1023"-"\u1027",
"\u1029"-"\u102a",
"\u102c"-"\u1032",
"\u1036"-"\u1039",
"\u1040"-"\u1049",
"\u1050"-"\u1059",
"\u10a0"-"\u10c5",
"\u10d0"-"\u10f6",
"\u1100"-"\u1159",
"\u115f"-"\u11a2",
"\u11a8"-"\u11f9",
"\u1200"-"\u1206",
"\u1208"-"\u1246",
"\u1248",
"\u124a"-"\u124d",
"\u1250"-"\u1256",
"\u1258",
"\u125a"-"\u125d",
"\u1260"-"\u1286",
"\u1288",
"\u128a"-"\u128d",
"\u1290"-"\u12ae",
"\u12b0",
"\u12b2"-"\u12b5",
"\u12b8"-"\u12be",
"\u12c0",
"\u12c2"-"\u12c5",
"\u12c8"-"\u12ce",
"\u12d0"-"\u12d6",
"\u12d8"-"\u12ee",
"\u12f0"-"\u130e",
"\u1310",
"\u1312"-"\u1315",
"\u1318"-"\u131e",
"\u1320"-"\u1346",
"\u1348"-"\u135a",
"\u1369"-"\u1371",
"\u13a0"-"\u13f4",
"\u1401"-"\u166c",
"\u166f"-"\u1676",
"\u1681"-"\u169a",
"\u16a0"-"\u16ea",
"\u1780"-"\u17d3",
"\u17db",
"\u17e0"-"\u17e9",
"\u180b"-"\u180e",
"\u1810"-"\u1819",
"\u1820"-"\u1877",
"\u1880"-"\u18a9",
"\u1e00"-"\u1e9b",
"\u1ea0"-"\u1ef9",
"\u1f00"-"\u1f15",
"\u1f18"-"\u1f1d",
"\u1f20"-"\u1f45",
"\u1f48"-"\u1f4d",
"\u1f50"-"\u1f57",
"\u1f59",
"\u1f5b",
"\u1f5d",
"\u1f5f"-"\u1f7d",
"\u1f80"-"\u1fb4",
"\u1fb6"-"\u1fbc",
"\u1fbe",
"\u1fc2"-"\u1fc4",
"\u1fc6"-"\u1fcc",
"\u1fd0"-"\u1fd3",
"\u1fd6"-"\u1fdb",
"\u1fe0"-"\u1fec",
"\u1ff2"-"\u1ff4",
"\u1ff6"-"\u1ffc",
"\u200c"-"\u200f",
"\u202a"-"\u202e",
"\u203f"-"\u2040",
"\u206a"-"\u206f",
"\u207f",
"\u20a0"-"\u20af",
"\u20d0"-"\u20dc",
"\u20e1",
"\u2102",
"\u2107",
"\u210a"-"\u2113",
"\u2115",
"\u2119"-"\u211d",
"\u2124",
"\u2126",
"\u2128",
"\u212a"-"\u212d",
"\u212f"-"\u2131",
"\u2133"-"\u2139",
"\u2160"-"\u2183",
"\u3005"-"\u3007",
"\u3021"-"\u302f",
"\u3031"-"\u3035",
"\u3038"-"\u303a",
"\u3041"-"\u3094",
"\u3099"-"\u309a",
"\u309d"-"\u309e",
"\u30a1"-"\u30fe",
"\u3105"-"\u312c",
"\u3131"-"\u318e",
"\u31a0"-"\u31b7",
"\u3400"-"\u4db5",
"\u4e00"-"\u9fa5",
"\ua000"-"\ua48c",
"\uac00"-"\ud7a3",
"\uf900"-"\ufa2d",
"\ufb00"-"\ufb06",
"\ufb13"-"\ufb17",
"\ufb1d"-"\ufb28",
"\ufb2a"-"\ufb36",
"\ufb38"-"\ufb3c",
"\ufb3e",
"\ufb40"-"\ufb41",
"\ufb43"-"\ufb44",
"\ufb46"-"\ufbb1",
"\ufbd3"-"\ufd3d",
"\ufd50"-"\ufd8f",
"\ufd92"-"\ufdc7",
"\ufdf0"-"\ufdfb",
"\ufe20"-"\ufe23",
"\ufe33"-"\ufe34",
"\ufe4d"-"\ufe4f",
"\ufe69",
"\ufe70"-"\ufe72",
"\ufe74",
"\ufe76"-"\ufefc",
"\ufeff",
"\uff04",
"\uff10"-"\uff19",
"\uff21"-"\uff3a",
"\uff3f",
"\uff41"-"\uff5a",
"\uff65"-"\uffbe",
"\uffc2"-"\uffc7",
"\uffca"-"\uffcf",
"\uffd2"-"\uffd7",
"\uffda"-"\uffdc",
"\uffe0"-"\uffe1",
"\uffe5"-"\uffe6",
"\ufff9"-"\ufffb"
]
>
}
/* SEPARATORS */
TOKEN :
{
< LPAREN: "(" >
| < RPAREN: ")" >
| < LBRACE: "{" >
| < RBRACE: "}" >
| < LBRACKET: "[" >
| < RBRACKET: "]" >
| < SEMICOLON: ";" >
| < COMMA: "," >
| < DOT: "." >
| < AT: "@" >
}
/* OPERATORS */
TOKEN :
{
< ASSIGN: "=" >
| < LT: "<" >
| < BANG: "!" >
| < TILDE: "~" >
| < HOOK: "?" >
| < COLON: ":" >
| < EQ: "==" >
| < LE: "<=" >
| < GE: ">=" >
| < NE: "!=" >
| < SC_OR: "||" >
| < SC_AND: "&&" >
| < INCR: "++" >
| < DECR: "--" >
| < PLUS: "+" >
| < MINUS: "-" >
| < STAR: "*" >
| < SLASH: "/" >
| < BIT_AND: "&" >
| < BIT_OR: "|" >
| < XOR: "^" >
| < REM: "%" >
| < LSHIFT: "<<" >
| < PLUSASSIGN: "+=" >
| < MINUSASSIGN: "-=" >
| < STARASSIGN: "*=" >
| < SLASHASSIGN: "/=" >
| < ANDASSIGN: "&=" >
| < ORASSIGN: "|=" >
| < XORASSIGN: "^=" >
| < REMASSIGN: "%=" >
| < LSHIFTASSIGN: "<<=" >
| < RSIGNEDSHIFTASSIGN: ">>=" >
| < RUNSIGNEDSHIFTASSIGN: ">>>=" >
| < ELLIPSIS: "..." >
| < LAMBDA: "->" >
| < METHOD_REF: "::" >
}
/* >'s need special attention due to generics syntax. */
TOKEN :
{
< RUNSIGNEDSHIFT: ">>>" >
{
matchedToken.kind = GT;
((Token.GTToken)matchedToken).realKind = RUNSIGNEDSHIFT;
input_stream.backup(2);
matchedToken.image = ">";
}
| < RSIGNEDSHIFT: ">>" >
{
matchedToken.kind = GT;
((Token.GTToken)matchedToken).realKind = RSIGNEDSHIFT;
input_stream.backup(1);
matchedToken.image = ">";
}
| < GT: ">" >
}
/*****************************************
* THE JAVA LANGUAGE GRAMMAR STARTS HERE *
*****************************************/
/*
* Program structuring syntax follows.
*/
ASTCompilationUnit CompilationUnit() :
{}
{
[ LOOKAHEAD( ( Annotation() )* "package" ) PackageDeclaration() ]
( ImportDeclaration() )*
( TypeDeclaration() )*
( < "\u001a" > )?
( < "~[]" > )?
<EOF>
{
jjtThis.setComments(token_source.comments);
return jjtThis;
}
}
void PackageDeclaration() :
{}
{
( Annotation() )* "package" Name() ";"
}
void ImportDeclaration() :
{}
{
"import" [ "static" {checkForBadStaticImportUsage();jjtThis.setStatic();} ] Name() [ "." "*" {jjtThis.setImportOnDemand();} ] ";"
}
/*
* Modifiers. We match all modifiers in a single rule to reduce the chances of
* syntax errors for simple modifier mistakes. It will also enable us to give
* better error messages.
*/
int Modifiers() #void:
{
int modifiers = 0;
}
{
(
LOOKAHEAD(2)
(
"public" { modifiers |= AccessNode.PUBLIC; }
| "static" { modifiers |= AccessNode.STATIC; }
| "protected" { modifiers |= AccessNode.PROTECTED; }
| "private" { modifiers |= AccessNode.PRIVATE; }
| "final" { modifiers |= AccessNode.FINAL; }
| "abstract" { modifiers |= AccessNode.ABSTRACT; }
| "synchronized" { modifiers |= AccessNode.SYNCHRONIZED; }
| "native" { modifiers |= AccessNode.NATIVE; }
| "transient" { modifiers |= AccessNode.TRANSIENT; }
| "volatile" { modifiers |= AccessNode.VOLATILE; }
| "strictfp" { modifiers |= AccessNode.STRICTFP; }
| "default" { modifiers |= AccessNode.DEFAULT; checkForBadDefaultImplementationUsage(); }
| Annotation()
)
)*
{
return modifiers;
}
}
/*
* Declaration syntax follows.
*/
void TypeDeclaration():
{
int modifiers;
}
{
";"
|
modifiers = Modifiers()
(
ClassOrInterfaceDeclaration(modifiers)
|
EnumDeclaration(modifiers)
|
AnnotationTypeDeclaration(modifiers)
)
}
void ClassOrInterfaceDeclaration(int modifiers):
{
Token t = null;
jjtThis.setModifiers(modifiers);
}
{
( /* See note about this optional final modifier in BlockStatement */ ["final"|"abstract"] "class" | "interface" { jjtThis.setInterface(); } )
t=<IDENTIFIER> { jjtThis.setImage(t.image); }
[ TypeParameters() ]
[ ExtendsList() ]
[ ImplementsList() ]
ClassOrInterfaceBody()
}
void ExtendsList():
{
boolean extendsMoreThanOne = false;
}
{
"extends" (Annotation() {checkForBadTypeAnnotations();})* ClassOrInterfaceType()
( "," (Annotation() {checkForBadTypeAnnotations();})* ClassOrInterfaceType() { extendsMoreThanOne = true; } )*
}
void ImplementsList():
{}
{
"implements" (Annotation() {checkForBadTypeAnnotations();})* ClassOrInterfaceType()
( "," (Annotation() {checkForBadTypeAnnotations();})* ClassOrInterfaceType() )*
}
void EnumDeclaration(int modifiers):
{
Token t;
jjtThis.setModifiers(modifiers);
}
{
t = <IDENTIFIER> {
if (!t.image.equals("enum")) {
throw new ParseException("ERROR: expecting enum");
}
if (jdkVersion < 5) {
throw new ParseException("ERROR: Can't use enum as a keyword in pre-JDK 1.5 target");
}
}
t=<IDENTIFIER> {jjtThis.setImage(t.image);}
[ ImplementsList() ]
EnumBody()
}
void EnumBody():
{}
{
"{"
[( Annotation() )* EnumConstant() ( LOOKAHEAD(2) "," ( Annotation() )* EnumConstant() )* ]
[ "," ]
[ ";" ( ClassOrInterfaceBodyDeclaration() )* ]
"}"
}
void EnumConstant():
{Token t;}
{
t=<IDENTIFIER> {jjtThis.setImage(t.image);} [ Arguments() ] [ ClassOrInterfaceBody() ]
}
void TypeParameters():
{}
{
"<" {checkForBadGenericsUsage();} TypeParameter() ( "," TypeParameter() )* ">"
}
void TypeParameter():
{Token t;}
{
(Annotation() {checkForBadTypeAnnotations();})*
t=<IDENTIFIER> {jjtThis.setImage(t.image);} [ TypeBound() ]
}
void TypeBound():
{}
{
"extends" ClassOrInterfaceType() ( "&" ClassOrInterfaceType() )*
}
void ClassOrInterfaceBody():
{}
{
"{" ( ClassOrInterfaceBodyDeclaration() )* "}"
}
void ClassOrInterfaceBodyDeclaration():
{
int modifiers;
}
{ LOOKAHEAD(["static"] "{" ) Initializer()
| modifiers = Modifiers()
( LOOKAHEAD(3) ClassOrInterfaceDeclaration(modifiers)
| LOOKAHEAD(3) EnumDeclaration(modifiers)
| LOOKAHEAD( [ TypeParameters() ] <IDENTIFIER> "(" ) ConstructorDeclaration(modifiers)
| LOOKAHEAD( Type() <IDENTIFIER> ( "[" "]" )* ( "," | "=" | ";" ) ) FieldDeclaration(modifiers)
| MethodDeclaration(modifiers)
| AnnotationTypeDeclaration(modifiers)
)
|
";"
}
void FieldDeclaration(int modifiers) :
{jjtThis.setModifiers(modifiers);}
{
Type() VariableDeclarator() ( "," VariableDeclarator() )* ";"
}
void VariableDeclarator() :
{}
{
VariableDeclaratorId() [ "=" VariableInitializer() ]
}
void VariableDeclaratorId() :
{Token t;}
{
t=<IDENTIFIER>
( "[" "]" { jjtThis.bumpArrayDepth(); })*
{
checkForBadAssertUsage(t.image, "a variable name");
checkForBadEnumUsage(t.image, "a variable name");
jjtThis.setImage( t.image );
}
}
void VariableInitializer() :
{}
{
ArrayInitializer()
| Expression()
}
void ArrayInitializer() :
{}
{
"{" [ VariableInitializer() ( LOOKAHEAD(2) "," VariableInitializer() )* ] [ "," ] "}"
}
void MethodDeclaration(int modifiers) :
{jjtThis.setModifiers(modifiers);}
{
[ TypeParameters() ]
ResultType() MethodDeclarator() [ "throws" NameList() ]
( Block() | ";" )
}
void MethodDeclarator() :
{Token t;}
{
t=<IDENTIFIER>
{
checkForBadAssertUsage(t.image, "a method name");
checkForBadEnumUsage(t.image, "a method name");
jjtThis.setImage( t.image );
}
FormalParameters() ( "[" "]" )*
}
void FormalParameters() :
{}
{
"(" [ FormalParameter() ( "," FormalParameter() )* ] ")"
}
void FormalParameter() :
{
}
{
( "final" {jjtThis.setFinal(true);} | Annotation() )*
Type() ("|" {checkForBadMultipleExceptionsCatching();} Type())*
[ "..." {checkForBadVariableArgumentsUsage();} {jjtThis.setVarargs();} ]
VariableDeclaratorId()
}
void ConstructorDeclaration(int modifiers) :
{jjtThis.setModifiers(modifiers);
Token t;}
{
[ TypeParameters() ]
<IDENTIFIER> FormalParameters() [ "throws" NameList() ]
"{"
[ LOOKAHEAD(ExplicitConstructorInvocation()) ExplicitConstructorInvocation() ]
( BlockStatement() )*
t = "}" { if (isPrecededByComment(t)) { jjtThis.setContainsComment(); } }
}
void ExplicitConstructorInvocation() :
{}
{
LOOKAHEAD("this" Arguments() ";") "this" {jjtThis.setIsThis();} Arguments() ";"
|
LOOKAHEAD(TypeArguments() "this" Arguments() ";") TypeArguments() "this" {jjtThis.setIsThis();} Arguments() ";"
|
[ LOOKAHEAD(PrimaryExpression() ".") PrimaryExpression() "." ] [ TypeArguments() ] "super" {jjtThis.setIsSuper();} Arguments() ";"
}
void Initializer() :
{}
{
[ "static" {jjtThis.setStatic();} ] Block()
}
/*
* Type, name and expression syntax follows.
*/
void Type():
{}
{
LOOKAHEAD(2) ReferenceType()
|
PrimitiveType()
}
void ReferenceType():
{}
{
PrimitiveType() ( LOOKAHEAD(2) "[" "]" { jjtThis.bumpArrayDepth(); })+
|
( ClassOrInterfaceType() ) ( LOOKAHEAD(2) "[" "]" { jjtThis.bumpArrayDepth(); })*
}
void ClassOrInterfaceType():
{
StringBuffer s = new StringBuffer();
Token t;
}
{
t=<IDENTIFIER> {s.append(t.image);}
[ LOOKAHEAD(2) TypeArguments() ]
( LOOKAHEAD(2) "." t=<IDENTIFIER> {s.append('.').append(t.image);} [ LOOKAHEAD(2) TypeArguments() ] )*
{jjtThis.setImage(s.toString());}
}
void TypeArguments():
{}
{
LOOKAHEAD(2)
"<" {checkForBadGenericsUsage();} TypeArgument() ( "," TypeArgument() )* ">"
|
"<" {checkForBadDiamondUsage();} ">"
}
void TypeArgument():
{}
{
(Annotation() {checkForBadTypeAnnotations();})* ReferenceType()
|
"?" [ WildcardBounds() ]
}
void WildcardBounds():
{}
{
"extends" (Annotation() {checkForBadTypeAnnotations();})* ReferenceType()
|
"super" (Annotation() {checkForBadTypeAnnotations();})* ReferenceType()
}
void PrimitiveType() :
{}
{
"boolean" {jjtThis.setImage("boolean");}
| "char" {jjtThis.setImage("char");}
| "byte" {jjtThis.setImage("byte");}
| "short" {jjtThis.setImage("short");}
| "int" {jjtThis.setImage("int");}
| "long" {jjtThis.setImage("long");}
| "float" {jjtThis.setImage("float");}
| "double" {jjtThis.setImage("double");}
}
void ResultType() :
{}
{
"void" | Type()
}
void Name() :
/*
* A lookahead of 2 is required below since "Name" can be followed
* by a ".*" when used in the context of an "ImportDeclaration".
*/
{
StringBuffer s = new StringBuffer();
Token t;
}
{
t=<IDENTIFIER>
{
jjtThis.testingOnly__setBeginLine( t.beginLine);
jjtThis.testingOnly__setBeginColumn( t.beginColumn);
s.append(t.image);
}
( LOOKAHEAD(2) "." t=<IDENTIFIER>
{s.append('.').append(t.image);}
)*
{jjtThis.setImage(s.toString());}
}
void NameList() :
{}
{
(Annotation() {checkForBadTypeAnnotations();})* Name()
( "," (Annotation() {checkForBadTypeAnnotations();})* Name()
)*
}
/*
* Expression syntax follows.
*/
void Expression() :
/*
* This expansion has been written this way instead of:
* Assignment() | ConditionalExpression()
* for performance reasons.
* However, it is a weakening of the grammar for it allows the LHS of
* assignments to be any conditional expression whereas it can only be
* a primary expression. Consider adding a semantic predicate to work
* around this.
*/
{}
{
ConditionalExpression()
[
LOOKAHEAD(2) AssignmentOperator() Expression()
]
}
void AssignmentOperator() :
{}
{
"=" {jjtThis.setImage("=");}
| "*=" {jjtThis.setImage("*="); jjtThis.setCompound();}
| "/=" {jjtThis.setImage("/="); jjtThis.setCompound();}
| "%=" {jjtThis.setImage("%="); jjtThis.setCompound();}
| "+=" {jjtThis.setImage("+="); jjtThis.setCompound();}
| "-=" {jjtThis.setImage("-="); jjtThis.setCompound();}
| "<<=" {jjtThis.setImage("<<="); jjtThis.setCompound();}
| ">>=" {jjtThis.setImage(">>="); jjtThis.setCompound();}
| ">>>=" {jjtThis.setImage(">>>="); jjtThis.setCompound();}
| "&=" {jjtThis.setImage("&="); jjtThis.setCompound();}
| "^=" {jjtThis.setImage("^="); jjtThis.setCompound();}
| "|=" {jjtThis.setImage("|="); jjtThis.setCompound();}
}
void ConditionalExpression() #ConditionalExpression(>1) :
{}
{
ConditionalOrExpression() [ LOOKAHEAD(2) "?" {jjtThis.setTernary();} Expression() ":" ConditionalExpression() ]
}
void ConditionalOrExpression() #ConditionalOrExpression(>1):
{}
{
ConditionalAndExpression() ( LOOKAHEAD(2) "||" ConditionalAndExpression() )*
}
void ConditionalAndExpression() #ConditionalAndExpression(>1):
{}
{
InclusiveOrExpression() ( LOOKAHEAD(2) "&&" InclusiveOrExpression() )*
}
void InclusiveOrExpression() #InclusiveOrExpression(>1) :
{}
{
ExclusiveOrExpression() ( LOOKAHEAD(2) "|" ExclusiveOrExpression() )*
}
void ExclusiveOrExpression() #ExclusiveOrExpression(>1) :
{}
{
AndExpression() ( LOOKAHEAD(2) "^" AndExpression() )*
}
void AndExpression() #AndExpression(>1):
{}
{
EqualityExpression() ( LOOKAHEAD(2) "&" EqualityExpression() )*
}
void EqualityExpression() #EqualityExpression(>1):
{}
{
InstanceOfExpression() ( LOOKAHEAD(2) ( "==" {jjtThis.setImage("==");} | "!=" {jjtThis.setImage("!=");} ) InstanceOfExpression() )*
}
void InstanceOfExpression() #InstanceOfExpression(>1):
{}
{
RelationalExpression() [ LOOKAHEAD(2) "instanceof" Type() ]
}
void RelationalExpression() #RelationalExpression(>1):
{}
{
ShiftExpression()
( LOOKAHEAD(2)
( "<" {jjtThis.setImage("<");}
| ">" {jjtThis.setImage(">");}
| "<=" {jjtThis.setImage("<=");}
| ">=" {jjtThis.setImage(">=");}
) ShiftExpression() )*
}
void ShiftExpression() #ShiftExpression(>1):
{}
{
AdditiveExpression()
( LOOKAHEAD(2)
( "<<" { jjtThis.setImage("<<");}
| RSIGNEDSHIFT()
| RUNSIGNEDSHIFT()
) AdditiveExpression() )*
}
void AdditiveExpression() #AdditiveExpression(>1):
{}
{
MultiplicativeExpression() ( LOOKAHEAD(2) ( "+" {jjtThis.setImage("+");} | "-" {jjtThis.setImage("-");} ) MultiplicativeExpression() )*
}
void MultiplicativeExpression() #MultiplicativeExpression(>1):
{}
{
UnaryExpression() ( LOOKAHEAD(2) ( "*" {jjtThis.setImage("*");} | "/" {jjtThis.setImage("/");} | "%" {jjtThis.setImage("%");}) UnaryExpression() )*
}
void UnaryExpression() #UnaryExpression((jjtn000.getImage() != null)):
{}
{
("+" {jjtThis.setImage("+");} | "-" {jjtThis.setImage("-");}) UnaryExpression()
| PreIncrementExpression()
| PreDecrementExpression()
| UnaryExpressionNotPlusMinus()
}
void PreIncrementExpression() :
{}
{
"++" PrimaryExpression()
}
void PreDecrementExpression() :
{}
{
"--" PrimaryExpression()
}
void UnaryExpressionNotPlusMinus() #UnaryExpressionNotPlusMinus((jjtn000.getImage() != null)):
{}
{
( "~" {jjtThis.setImage("~");} | "!" {jjtThis.setImage("!");} ) UnaryExpression()
| LOOKAHEAD( CastExpression() ) CastExpression()
| PostfixExpression()
}
void PostfixExpression() #PostfixExpression((jjtn000.getImage() != null)):
{}
{
PrimaryExpression() [ "++" {jjtThis.setImage("++");} | "--" {jjtThis.setImage("--");} ]
}
void CastExpression() #CastExpression(>1):
{}
{
LOOKAHEAD("(" (Annotation())* Type() ")") "(" (Annotation() {checkForBadTypeAnnotations();})* Type() ")" UnaryExpression()
| LOOKAHEAD("(" (Annotation())* Type() "&") "(" (Annotation() {checkForBadTypeAnnotations();})* Type() ( "&" {checkForBadIntersectionTypesInCasts(); jjtThis.setIntersectionTypes(true);} ReferenceType() )+ ")" UnaryExpressionNotPlusMinus()
| "(" (Annotation() {checkForBadTypeAnnotations();})* Type() ")" UnaryExpressionNotPlusMinus()
}
void PrimaryExpression() :
{}
{
PrimaryPrefix() ( LOOKAHEAD(2) PrimarySuffix() )*
}
void MemberSelector():
{
Token t;
}
{
"." TypeArguments() t=<IDENTIFIER> {jjtThis.setImage(t.image);}
| MethodReference()
}
void MethodReference() :
{Token t; checkForBadMethodReferenceUsage();}
{
"::" ("new" {jjtThis.setImage("new");} | t=<IDENTIFIER> {jjtThis.setImage(t.image);} )
}
void PrimaryPrefix() :
{Token t;}
{
Literal()
| "this" {jjtThis.setUsesThisModifier();}
| "super" {jjtThis.setUsesSuperModifier();}
| LOOKAHEAD( "(" ")" "->" ) LambdaExpression()
| LOOKAHEAD( <IDENTIFIER> "->" ) LambdaExpression()
| LOOKAHEAD( "(" VariableDeclaratorId() "," VariableDeclaratorId() ["," VariableDeclaratorId()] ")" "->" ) LambdaExpression()
| LOOKAHEAD( "(" FormalParameter() "," FormalParameter() ["," FormalParameter() ] ")" "->" ) LambdaExpression()
| LOOKAHEAD( LambdaExpression() ) LambdaExpression()
| LOOKAHEAD(3) "(" Expression() ")"
| AllocationExpression()
| LOOKAHEAD( ResultType() "." "class" ) ResultType() "." "class"
| LOOKAHEAD( Name() "::" ) Name()
| LOOKAHEAD( ReferenceType() MethodReference() ) ReferenceType() MethodReference()
| Name()
}
void LambdaExpression() :
{ checkForBadLambdaUsage(); }
{
VariableDeclaratorId() "->" ( Expression() | Block() )
| LOOKAHEAD(3) FormalParameters() "->" ( Expression() | Block() )
| LOOKAHEAD(3) "(" VariableDeclaratorId() ( "," VariableDeclaratorId() )* ")" "->" ( Expression() | Block() )
}
void PrimarySuffix() :
{Token t;}
{ LOOKAHEAD(2) "." "this"
| LOOKAHEAD(2) "." "super"
| LOOKAHEAD(2) "." AllocationExpression()
| LOOKAHEAD(3) MemberSelector()
| "[" Expression() "]" {jjtThis.setIsArrayDereference();}
| "." t=<IDENTIFIER> {jjtThis.setImage(t.image);}
| Arguments() {jjtThis.setIsArguments();}
}
void Literal() :
{}
{
{ Token t;}
t=<INTEGER_LITERAL> { checkForBadNumericalLiteralslUsage(t); jjtThis.setImage(t.image); jjtThis.setIntLiteral();}
| t=<FLOATING_POINT_LITERAL> { checkForBadNumericalLiteralslUsage(t); jjtThis.setImage(t.image); jjtThis.setFloatLiteral();}
| t=<HEX_FLOATING_POINT_LITERAL> { checkForBadHexFloatingPointLiteral(); checkForBadNumericalLiteralslUsage(t); jjtThis.setImage(t.image); jjtThis.setFloatLiteral();}
| t=<CHARACTER_LITERAL> {jjtThis.setImage(t.image); jjtThis.setCharLiteral();}
| t=<STRING_LITERAL> {jjtThis.setImage(t.image); jjtThis.setStringLiteral();}
| BooleanLiteral()
| NullLiteral()
}
void BooleanLiteral() :
{}
{
"true" { jjtThis.setTrue(); } | "false"
}
void NullLiteral() :
{}
{ "null" }
void Arguments() :
{}
{
"(" [ ArgumentList() ] ")"
}
void ArgumentList() :
{}
{
Expression() ( "," Expression() )*
}
void AllocationExpression():
{}
{
"new" (Annotation() {checkForBadTypeAnnotations();})*
(LOOKAHEAD(2)
PrimitiveType() ArrayDimsAndInits()
|
ClassOrInterfaceType() [ TypeArguments() ]
(
ArrayDimsAndInits()
|
Arguments() [ ClassOrInterfaceBody() ]
)
)
}
/*
* The second LOOKAHEAD specification below is to parse to PrimarySuffix
* if there is an expression between the "[...]".
*/
void ArrayDimsAndInits() :
{}
{
LOOKAHEAD(2)
( LOOKAHEAD(2) "[" Expression() "]" )+ ( LOOKAHEAD(2) "[" "]" )*
|
( "[" "]" )+ ArrayInitializer()
}
/*
* Statement syntax follows.
*/
void Statement() :
{}
{
LOOKAHEAD( { isNextTokenAnAssert() } ) AssertStatement()
| LOOKAHEAD(2) LabeledStatement()
| Block()
| EmptyStatement()
| StatementExpression() ";"
| SwitchStatement()
| IfStatement()
| WhileStatement()
| DoStatement()
| ForStatement()
| BreakStatement()
| ContinueStatement()
| ReturnStatement()
| ThrowStatement()
| SynchronizedStatement()
| TryStatement()
}
void LabeledStatement() :
{Token t;}
{
t=<IDENTIFIER> {jjtThis.setImage(t.image);} ":" Statement()
}
void Block() :
{Token t;}
{
"{"
( BlockStatement() )* t = "}" { if (isPrecededByComment(t)) { jjtThis.setContainsComment(); } }
}
void BlockStatement():
{}
{
LOOKAHEAD( { isNextTokenAnAssert() } ) AssertStatement()
|
LOOKAHEAD(( "final" | Annotation() )* Type() <IDENTIFIER>)
LocalVariableDeclaration() ";"
|
Statement()
|
/*
TODO: Seems like we should be discarding the "final"
after using it in the lookahead; I added a ["final|abstract"] inside
ClassOrInterfaceDeclaration, but that seems like a hack that
could break other things...
*/
LOOKAHEAD( [Annotation()] ["final"|"abstract"] "class") [Annotation()] ClassOrInterfaceDeclaration(0)
}
void LocalVariableDeclaration() :
{}
{
( "final" {jjtThis.setFinal(true);} | Annotation() )*
Type()
VariableDeclarator()
( "," VariableDeclarator() )*
}
void EmptyStatement() :
{}
{
";"
}
void StatementExpression() :
{}
{
PreIncrementExpression()
|
PreDecrementExpression()
|
LOOKAHEAD( PrimaryExpression() ("++" | "--") ) PostfixExpression()
|
PrimaryExpression()
[
AssignmentOperator() Expression()
]
}
void SwitchStatement() :
{}
{
"switch" "(" Expression() ")" "{"
( SwitchLabel() ( BlockStatement() )* )*
"}"
}
void SwitchLabel() :
{}
{
"case" Expression() ":"
|
"default" {jjtThis.setDefault();} ":"
}
void IfStatement() :
/*
* The disambiguating algorithm of JavaCC automatically binds dangling
* else's to the innermost if statement. The LOOKAHEAD specification
* is to tell JavaCC that we know what we are doing.
*/
{}
{
"if" "(" Expression() ")" Statement() [ LOOKAHEAD(1) "else" {jjtThis.setHasElse();} Statement() ]
{}
}
void WhileStatement() :
{}
{
"while" "(" Expression() ")" Statement()
}
void DoStatement() :
{}
{
"do" Statement() "while" "(" Expression() ")" ";"
}
void ForStatement() :
{}
{
"for" "("
(
LOOKAHEAD(LocalVariableDeclaration() ":")
{checkForBadJDK15ForLoopSyntaxArgumentsUsage();}
LocalVariableDeclaration() ":" Expression()
|
[ ForInit() ] ";"
[ Expression() ] ";"
[ ForUpdate() ]
)
")" Statement()
}
void ForInit() :
{}
{
LOOKAHEAD( LocalVariableDeclaration() )
LocalVariableDeclaration()
|
StatementExpressionList()
}
void StatementExpressionList() :
{}
{
StatementExpression() ( "," StatementExpression() )*
}
void ForUpdate() :
{}
{
StatementExpressionList()
}
void BreakStatement() :
{Token t;}
{
"break" [ t=<IDENTIFIER> {jjtThis.setImage(t.image);} ] ";"
}
void ContinueStatement() :
{Token t;}
{
"continue" [ t=<IDENTIFIER> {jjtThis.setImage(t.image);} ] ";"
}
void ReturnStatement() :
{}
{
"return" [ Expression() ] ";"
}
void ThrowStatement() :
{}
{
"throw" Expression() ";"
}
void SynchronizedStatement() :
{}
{
"synchronized" "(" Expression() ")" Block()
}
void TryStatement() :
/*
* Semantic check required here to make sure that at least one
* resource/finally/catch is present.
*/
{}
{
"try" (ResourceSpecification())? Block()
( CatchStatement() )*
[ FinallyStatement() ]
}
void ResourceSpecification() :
{}
{
{checkForBadTryWithResourcesUsage();}
"("
Resources()
(LOOKAHEAD(2) ";")?
")"
}
void Resources() :
{}
{
Resource() (LOOKAHEAD(2) ";" Resource())*
}
void Resource() :
{}
{
( "final" | Annotation() )*
Type()
VariableDeclaratorId()
"="
Expression()
}
void CatchStatement() :
{}
{
"catch"
"(" FormalParameter() ")"
Block()
}
void FinallyStatement() :
{}
{
"finally" Block()
}
void AssertStatement() :
{
if (jdkVersion <= 3) {
throw new ParseException("Can't use 'assert' as a keyword when running in JDK 1.3 mode!");
}
}
{
<IDENTIFIER> Expression() [ ":" Expression() ] ";"
}
/* We use productions to match >>>, >> and > so that we can keep the
* type declaration syntax with generics clean
*/
void RUNSIGNEDSHIFT():
{}
{
( LOOKAHEAD({ getToken(1).kind == GT &&
((Token.GTToken)getToken(1)).realKind == RUNSIGNEDSHIFT} )
">" ">" ">"
)
}
void RSIGNEDSHIFT():
{}
{
( LOOKAHEAD({ getToken(1).kind == GT &&
((Token.GTToken)getToken(1)).realKind == RSIGNEDSHIFT} )
">" ">"
)
}
/* Annotation syntax follows. */
void Annotation():
{}
{
LOOKAHEAD( "@" Name() "(" ( <IDENTIFIER> "=" | ")" ))
NormalAnnotation()
|
LOOKAHEAD( "@" Name() "(" )
SingleMemberAnnotation()
|
MarkerAnnotation()
}
void NormalAnnotation():
{}
{
"@" Name() "(" [ MemberValuePairs() ] ")" {checkForBadAnnotationUsage();}
}
void MarkerAnnotation():
{}
{
"@" Name() {checkForBadAnnotationUsage();}
}
void SingleMemberAnnotation():
{}
{
"@" Name() "(" MemberValue() ")" {checkForBadAnnotationUsage();}
}
void MemberValuePairs():
{}
{
MemberValuePair() ( "," MemberValuePair() )*
}
void MemberValuePair():
{Token t;}
{
t=<IDENTIFIER> { jjtThis.setImage(t.image); } "=" MemberValue()
}
void MemberValue():
{}
{
Annotation()
|
MemberValueArrayInitializer()
|
ConditionalExpression()
}
void MemberValueArrayInitializer():
{}
{
"{" (MemberValue() ( LOOKAHEAD(2) "," MemberValue() )* [ "," ])? "}"
}
/* Annotation Types. */
void AnnotationTypeDeclaration(int modifiers):
{
Token t;
jjtThis.setModifiers(modifiers);
}
{
"@" "interface" t=<IDENTIFIER> {checkForBadAnnotationUsage();jjtThis.setImage(t.image);} AnnotationTypeBody()
}
void AnnotationTypeBody():
{}
{
"{" ( AnnotationTypeMemberDeclaration() )* "}"
}
void AnnotationTypeMemberDeclaration():
{
int modifiers;
}
{
modifiers = Modifiers()
(
LOOKAHEAD(3) AnnotationMethodDeclaration(modifiers)
|
ClassOrInterfaceDeclaration(modifiers)
|
LOOKAHEAD(3) EnumDeclaration(modifiers)
|
AnnotationTypeDeclaration(modifiers)
|
FieldDeclaration(modifiers)
)
|
( ";" )
}
void AnnotationMethodDeclaration(int modifiers):
{
Token t;
jjtThis.setModifiers(modifiers);
}
{
Type() t=<IDENTIFIER> "(" ")" [ DefaultValue() ] ";"
{
jjtThis.setImage(t.image);
}
}
void DefaultValue():
{}
{
"default" MemberValue()
}