javacc-6.1.2.examples.JavaGrammars.1.5.Java1.5.jj Maven / Gradle / Ivy
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JavaCC is a parser/scanner generator for Java.
/* Copyright (c) 2006, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
options {
JAVA_UNICODE_ESCAPE = true;
ERROR_REPORTING = false;
STATIC = false;
COMMON_TOKEN_ACTION = false;
TOKEN_FACTORY = "MyToken";
JDK_VERSION = "1.5";
}
PARSER_BEGIN(JavaParser)
import java.io.*;
/**
* Grammar to parse Java version 1.5
* @author Sreenivasa Viswanadha - Simplified and enhanced for 1.5
*/
public class JavaParser
{
/**
* Class to hold modifiers.
*/
static public final class ModifierSet
{
/* Definitions of the bits in the modifiers field. */
public static final int PUBLIC = 0x0001;
public static final int PROTECTED = 0x0002;
public static final int PRIVATE = 0x0004;
public static final int ABSTRACT = 0x0008;
public static final int STATIC = 0x0010;
public static final int FINAL = 0x0020;
public static final int SYNCHRONIZED = 0x0040;
public static final int NATIVE = 0x0080;
public static final int TRANSIENT = 0x0100;
public static final int VOLATILE = 0x0200;
public static final int STRICTFP = 0x1000;
/** A set of accessors that indicate whether the specified modifier
is in the set. */
public boolean isPublic(int modifiers)
{
return (modifiers & PUBLIC) != 0;
}
public boolean isProtected(int modifiers)
{
return (modifiers & PROTECTED) != 0;
}
public boolean isPrivate(int modifiers)
{
return (modifiers & PRIVATE) != 0;
}
public boolean isStatic(int modifiers)
{
return (modifiers & STATIC) != 0;
}
public boolean isAbstract(int modifiers)
{
return (modifiers & ABSTRACT) != 0;
}
public boolean isFinal(int modifiers)
{
return (modifiers & FINAL) != 0;
}
public boolean isNative(int modifiers)
{
return (modifiers & NATIVE) != 0;
}
public boolean isStrictfp(int modifiers)
{
return (modifiers & STRICTFP) != 0;
}
public boolean isSynchronized(int modifiers)
{
return (modifiers & SYNCHRONIZED) != 0;
}
public boolean isTransient(int modifiers)
{
return (modifiers & TRANSIENT) != 0;
}
public boolean isVolatile(int modifiers)
{
return (modifiers & VOLATILE) != 0;
}
/**
* Removes the given modifier.
*/
static int removeModifier(int modifiers, int mod)
{
return modifiers & ~mod;
}
}
public JavaParser(String fileName)
{
this(System.in);
try { ReInit(new FileInputStream(new File(fileName))); }
catch(Exception e) { e.printStackTrace(); }
}
public static void main(String args[]) {
JavaParser parser;
if (args.length == 0) {
System.out.println("Java Parser Version 1.1: Reading from standard input . . .");
parser = new JavaParser(System.in);
} else if (args.length == 1) {
System.out.println("Java Parser Version 1.1: Reading from file " + args[0] + " . . .");
try {
parser = new JavaParser(new java.io.FileInputStream(args[0]));
} catch (java.io.FileNotFoundException e) {
System.out.println("Java Parser Version 1.1: File " + args[0] + " not found.");
return;
}
} else {
System.out.println("Java Parser Version 1.1: Usage is one of:");
System.out.println(" java JavaParser < inputfile");
System.out.println("OR");
System.out.println(" java JavaParser inputfile");
return;
}
try {
parser.CompilationUnit();
System.out.println("Java Parser Version 1.1: Java program parsed successfully.");
} catch (ParseException e) {
System.out.println(e.getMessage());
System.out.println("Java Parser Version 1.1: Encountered errors during parse.");
}
}
}
PARSER_END(JavaParser)
/* WHITE SPACE */
SKIP :
{
" "
| "\t"
| "\n"
| "\r"
| "\f"
}
/* COMMENTS */
MORE :
{
<"/**" ~["/"]> { input_stream.backup(1); } : IN_FORMAL_COMMENT
|
"/*" : IN_MULTI_LINE_COMMENT
}
SPECIAL_TOKEN :
{
}
SPECIAL_TOKEN :
{
: DEFAULT
}
SPECIAL_TOKEN :
{
: DEFAULT
}
MORE :
{
< ~[] >
}
/* RESERVED WORDS AND LITERALS */
TOKEN :
{
< ABSTRACT: "abstract" >
| < ASSERT: "assert" >
| < 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" >
| < ENUM: "enum" >
| < 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" >
| < STRICTFP: "strictfp" >
| < SUPER: "super" >
| < SWITCH: "switch" >
| < SYNCHRONIZED: "synchronized" >
| < THIS: "this" >
| < THROW: "throw" >
| < THROWS: "throws" >
| < TRANSIENT: "transient" >
| < TRUE: "true" >
| < TRY: "try" >
| < VOID: "void" >
| < VOLATILE: "volatile" >
| < WHILE: "while" >
}
/* LITERALS */
TOKEN :
{
< INTEGER_LITERAL:
(["l","L"])?
| (["l","L"])?
| (["l","L"])?
>
|
< #DECIMAL_LITERAL: ["1"-"9"] (["0"-"9"])* >
|
< #HEX_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])+ >
|
< #OCTAL_LITERAL: "0" (["0"-"7"])* >
|
< FLOATING_POINT_LITERAL:
|
>
|
< #DECIMAL_FLOATING_POINT_LITERAL:
(["0"-"9"])+ "." (["0"-"9"])* ()? (["f","F","d","D"])?
| "." (["0"-"9"])+ ()? (["f","F","d","D"])?
| (["0"-"9"])+ (["f","F","d","D"])?
| (["0"-"9"])+ ()? ["f","F","d","D"]
>
|
< #DECIMAL_EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
|
< #HEXADECIMAL_FLOATING_POINT_LITERAL:
"0" ["x", "X"] (["0"-"9","a"-"f","A"-"F"])+ (".")? (["f","F","d","D"])?
| "0" ["x", "X"] (["0"-"9","a"-"f","A"-"F"])* "." (["0"-"9","a"-"f","A"-"F"])+ (["f","F","d","D"])?
>
|
< #HEXADECIMAL_EXPONENT: ["p","P"] (["+","-"])? (["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:
[ // 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: "..." >
}
/* >'s need special attention due to generics syntax. */
TOKEN :
{
< RUNSIGNEDSHIFT: ">>>" >
{
matchedToken.kind = GT;
((MyToken)matchedToken).realKind = RUNSIGNEDSHIFT;
input_stream.backup(2);
matchedToken.image = ">";
}
| < RSIGNEDSHIFT: ">>" >
{
matchedToken.kind = GT;
((MyToken)matchedToken).realKind = RSIGNEDSHIFT;
input_stream.backup(1);
matchedToken.image = ">";
}
| < GT: ">" >
}
/*****************************************
* THE JAVA LANGUAGE GRAMMAR STARTS HERE *
*****************************************/
/*
* Program structuring syntax follows.
*/
void CompilationUnit():
{}
{
[ LOOKAHEAD( ( Annotation() )* "package" ) PackageDeclaration() ]
( ImportDeclaration() )*
( TypeDeclaration() )+
( < "\u001a" > )?
( )?
}
void PackageDeclaration():
{}
{
Modifiers() "package" Name() ";"
}
void ImportDeclaration():
{}
{
"import" [ "static" ] Name() [ "." "*" ] ";"
}
/*
* 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():
{
int modifiers = 0;
}
{
(
LOOKAHEAD(2)
(
"public" { modifiers |= ModifierSet.PUBLIC; }
|
"static" { modifiers |= ModifierSet.STATIC; }
|
"protected" { modifiers |= ModifierSet.PROTECTED; }
|
"private" { modifiers |= ModifierSet.PRIVATE; }
|
"final" { modifiers |= ModifierSet.FINAL; }
|
"abstract" { modifiers |= ModifierSet.ABSTRACT; }
|
"synchronized" { modifiers |= ModifierSet.SYNCHRONIZED; }
|
"native" { modifiers |= ModifierSet.NATIVE; }
|
"transient" { modifiers |= ModifierSet.TRANSIENT; }
|
"volatile" { modifiers |= ModifierSet.VOLATILE; }
|
"strictfp" { modifiers |= ModifierSet.STRICTFP; }
|
Annotation()
)
)*
{
return modifiers;
}
}
/*
* Declaration syntax follows.
*/
void TypeDeclaration():
{
int modifiers;
}
{
";"
|
modifiers = Modifiers()
(
ClassOrInterfaceDeclaration(modifiers)
|
EnumDeclaration(modifiers)
|
AnnotationTypeDeclaration(modifiers)
)
}
void ClassOrInterfaceDeclaration(int modifiers):
{
boolean isInterface = false;
}
{
( "class" | "interface" { isInterface = true; } )
[ TypeParameters() ]
[ ExtendsList(isInterface) ]
[ ImplementsList(isInterface) ]
ClassOrInterfaceBody(isInterface)
}
void ExtendsList(boolean isInterface):
{
boolean extendsMoreThanOne = false;
}
{
"extends" ClassOrInterfaceType()
( "," ClassOrInterfaceType() { extendsMoreThanOne = true; } )*
{
if (extendsMoreThanOne && !isInterface)
throw new ParseException("A class cannot extend more than one other class");
}
}
void ImplementsList(boolean isInterface):
{}
{
"implements" ClassOrInterfaceType()
( "," ClassOrInterfaceType() )*
{
if (isInterface)
throw new ParseException("An interface cannot implement other interfaces");
}
}
void EnumDeclaration(int modifiers):
{}
{
"enum"
[ ImplementsList(false) ]
EnumBody()
}
void EnumBody():
{}
{
"{"
[ EnumConstant() ( LOOKAHEAD(2) "," EnumConstant() )* ]
[ "," ]
[ ";" ( ClassOrInterfaceBodyDeclaration(false) )* ]
"}"
}
void EnumConstant():
{}
{
Modifiers() [ Arguments() ] [ ClassOrInterfaceBody(false) ]
}
void TypeParameters():
{}
{
"<" TypeParameter() ( "," TypeParameter() )* ">"
}
void TypeParameter():
{}
{
[ TypeBound() ]
}
void TypeBound():
{}
{
"extends" ClassOrInterfaceType() ( "&" ClassOrInterfaceType() )*
}
void ClassOrInterfaceBody(boolean isInterface):
{}
{
"{" ( ClassOrInterfaceBodyDeclaration(isInterface) )* "}"
}
void ClassOrInterfaceBodyDeclaration(boolean isInterface):
{
boolean isNestedInterface = false;
int modifiers;
}
{
LOOKAHEAD(2)
Initializer()
{
if (isInterface)
throw new ParseException("An interface cannot have initializers");
}
|
modifiers = Modifiers() // Just get all the modifiers out of the way. If you want to do
// more checks, pass the modifiers down to the member
(
ClassOrInterfaceDeclaration(modifiers)
|
EnumDeclaration(modifiers)
|
LOOKAHEAD( [ TypeParameters() ] "(" )
ConstructorDeclaration()
|
LOOKAHEAD( Type() ( "[" "]" )* ( "," | "=" | ";" ) )
FieldDeclaration(modifiers)
|
MethodDeclaration(modifiers)
|
AnnotationTypeDeclaration(modifiers)
)
|
";"
}
void FieldDeclaration(int modifiers):
{}
{
// Modifiers are already matched in the caller
Type() VariableDeclarator() ( "," VariableDeclarator() )* ";"
}
void VariableDeclarator():
{}
{
VariableDeclaratorId() [ "=" VariableInitializer() ]
}
void VariableDeclaratorId():
{}
{
( "[" "]" )*
}
void VariableInitializer():
{}
{
ArrayInitializer()
|
Expression()
}
void ArrayInitializer():
{}
{
"{" [ VariableInitializer() ( LOOKAHEAD(2) "," VariableInitializer() )* ] [ "," ] "}"
}
void MethodDeclaration(int modifiers):
{}
{
// Modifiers already matched in the caller!
[ TypeParameters() ]
ResultType()
MethodDeclarator() [ "throws" NameList() ]
( Block() | ";" )
}
void MethodDeclarator():
{}
{
FormalParameters() ( "[" "]" )*
}
void FormalParameters():
{}
{
"(" [ FormalParameter() ( "," FormalParameter() )* ] ")"
}
void FormalParameter():
{}
{
// danson, added
// [ "final" | Annotation() ]
// See Java Language Specification, 3rd Edition, section 8.4.1
Modifiers() [ "final" | Annotation() ] Type() [ "..." ] VariableDeclaratorId()
}
void ConstructorDeclaration():
{}
{
[ TypeParameters() ]
// Modifiers matched in the caller
FormalParameters() [ "throws" NameList() ]
"{"
[ LOOKAHEAD(ExplicitConstructorInvocation())
ExplicitConstructorInvocation()
]
( BlockStatement() )*
"}"
}
void ExplicitConstructorInvocation():
{}
{
( "." )* [ LOOKAHEAD(2) "this" "." ]
[ TypeArguments() ] ("this"|"super") Arguments() ";"
}
void Initializer():
{}
{
[ "static" ] Block()
}
/*
* Type, name and expression syntax follows.
*/
void Type():
{}
{
LOOKAHEAD(2) ReferenceType()
|
PrimitiveType()
}
void ReferenceType():
{}
{
PrimitiveType() ( LOOKAHEAD(2) "[" "]" )+
|
( ClassOrInterfaceType() ) ( LOOKAHEAD(2) "[" "]" )*
}
void ClassOrInterfaceType():
{}
{
[ LOOKAHEAD(2) TypeArguments() ]
( LOOKAHEAD(2) "." [ LOOKAHEAD(2) TypeArguments() ] )*
}
void TypeArguments():
{}
{
"<" TypeArgument() ( "," TypeArgument() )* ">"
}
void TypeArgument():
{}
{
ReferenceType()
|
"?" [ WildcardBounds() ]
}
void WildcardBounds():
{}
{
"extends" ReferenceType()
|
"super" ReferenceType()
}
void PrimitiveType():
{}
{
"boolean"
|
"char"
|
"byte"
|
"short"
|
"int"
|
"long"
|
"float"
|
"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".
*/
{}
{
( LOOKAHEAD(2) "."
)*
}
void NameList():
{}
{
Name() ( "," 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():
{}
{
"=" | "*=" | "/=" | "%=" | "+=" | "-=" | "<<=" | ">>=" | ">>>=" | "&=" | "^=" | "|="
}
void ConditionalExpression():
{}
{
ConditionalOrExpression() [ "?" Expression() ":" Expression() ]
}
void ConditionalOrExpression():
{}
{
ConditionalAndExpression() ( "||" ConditionalAndExpression() )*
}
void ConditionalAndExpression():
{}
{
InclusiveOrExpression() ( "&&" InclusiveOrExpression() )*
}
void InclusiveOrExpression():
{}
{
ExclusiveOrExpression() ( "|" ExclusiveOrExpression() )*
}
void ExclusiveOrExpression():
{}
{
AndExpression() ( "^" AndExpression() )*
}
void AndExpression():
{}
{
EqualityExpression() ( "&" EqualityExpression() )*
}
void EqualityExpression():
{}
{
InstanceOfExpression() ( ( "==" | "!=" ) InstanceOfExpression() )*
}
void InstanceOfExpression():
{}
{
RelationalExpression() [ "instanceof" Type() ]
}
void RelationalExpression():
{}
{
ShiftExpression() ( ( "<" | ">" | "<=" | ">=" ) ShiftExpression() )*
}
void ShiftExpression():
{}
{
AdditiveExpression() ( ( "<<" | RSIGNEDSHIFT() | RUNSIGNEDSHIFT() ) AdditiveExpression() )*
}
void AdditiveExpression():
{}
{
MultiplicativeExpression() ( ( "+" | "-" ) MultiplicativeExpression() )*
}
void MultiplicativeExpression():
{}
{
UnaryExpression() ( ( "*" | "/" | "%" ) UnaryExpression() )*
}
void UnaryExpression():
{}
{
( "+" | "-" ) UnaryExpression()
|
PreIncrementExpression()
|
PreDecrementExpression()
|
UnaryExpressionNotPlusMinus()
}
void PreIncrementExpression():
{}
{
"++" PrimaryExpression()
}
void PreDecrementExpression():
{}
{
"--" PrimaryExpression()
}
void UnaryExpressionNotPlusMinus():
{}
{
( "~" | "!" ) UnaryExpression()
|
LOOKAHEAD( CastLookahead() )
CastExpression()
|
PostfixExpression()
}
// This production is to determine lookahead only. The LOOKAHEAD specifications
// below are not used, but they are there just to indicate that we know about
// this.
void CastLookahead():
{}
{
LOOKAHEAD(2)
"(" PrimitiveType()
|
LOOKAHEAD("(" Type() "[")
"(" Type() "[" "]"
|
"(" Type() ")" ( "~" | "!" | "(" | | "this" | "super" | "new" | Literal() )
}
void PostfixExpression():
{}
{
PrimaryExpression() [ "++" | "--" ]
}
void CastExpression():
{}
{
LOOKAHEAD("(" PrimitiveType())
"(" Type() ")" UnaryExpression()
|
"(" Type() ")" UnaryExpressionNotPlusMinus()
}
void PrimaryExpression():
{}
{
PrimaryPrefix() ( LOOKAHEAD(2) PrimarySuffix() )*
}
void MemberSelector():
{}
{
"." TypeArguments()
}
void PrimaryPrefix():
{}
{
Literal()
|
LOOKAHEAD( ( "." )* "this" )
( "." )*
"this"
|
"super" "."
|
// danson, added this part to support a construct like:
// Buffer.super.setDirty(true);
// See Java Language Specification, 3rd edition, section 15.11.2.
LOOKAHEAD( ClassOrInterfaceType() "." "super" "." )
ClassOrInterfaceType() "." "super" "."
|
"(" Expression() ")"
|
AllocationExpression()
|
LOOKAHEAD( ResultType() "." "class" )
ResultType() "." "class"
|
Name()
}
void PrimarySuffix():
{}
{
LOOKAHEAD("." "super" ".")
"." "super"
|
LOOKAHEAD("." "this")
"." "this"
|
LOOKAHEAD(2)
"." AllocationExpression()
|
LOOKAHEAD(3)
MemberSelector()
|
"[" Expression() "]"
|
"."
|
Arguments()
}
void Literal():
{}
{
|
|
|
|
BooleanLiteral()
|
NullLiteral()
}
void BooleanLiteral():
{}
{
"true"
|
"false"
}
void NullLiteral():
{}
{
"null"
}
void Arguments():
{}
{
"(" [ ArgumentList() ] ")"
}
void ArgumentList():
{}
{
Expression() ( "," Expression() )*
}
void AllocationExpression():
{}
{
LOOKAHEAD(2)
"new" PrimitiveType() ArrayDimsAndInits()
|
"new" ClassOrInterfaceType() [ TypeArguments() ]
(
ArrayDimsAndInits()
|
Arguments() [ ClassOrInterfaceBody(false) ]
)
}
/*
* The third 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(2)
LabeledStatement()
|
AssertStatement()
|
Block()
|
EmptyStatement()
|
StatementExpression() ";"
|
SwitchStatement()
|
IfStatement()
|
WhileStatement()
|
DoStatement()
|
ForStatement()
|
BreakStatement()
|
ContinueStatement()
|
ReturnStatement()
|
ThrowStatement()
|
SynchronizedStatement()
|
TryStatement()
}
void AssertStatement():
{}
{
"assert" Expression() [ ":" Expression() ] ";"
}
void LabeledStatement():
{}
{
":" Statement()
}
void Block():
{}
{
"{" ( BlockStatement() )* "}"
}
void BlockStatement():
{}
{
LOOKAHEAD( Modifiers() Type() )
LocalVariableDeclaration() ";"
|
Statement()
|
ClassOrInterfaceDeclaration(0)
}
void LocalVariableDeclaration():
{}
{
Modifiers() Type() VariableDeclarator() ( "," VariableDeclarator() )*
}
void EmptyStatement():
{}
{
";"
}
void StatementExpression():
/*
* The last expansion of this production accepts more than the legal
* Java expansions for StatementExpression. This expansion does not
* use PostfixExpression for performance reasons.
*/
{}
{
PreIncrementExpression()
|
PreDecrementExpression()
|
PrimaryExpression()
[
"++"
|
"--"
|
AssignmentOperator() Expression()
]
}
void SwitchStatement():
{}
{
"switch" "(" Expression() ")" "{"
( SwitchLabel() ( BlockStatement() )* )*
"}"
}
void SwitchLabel():
{}
{
"case" Expression() ":"
|
"default" ":"
}
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" Statement() ]
}
void WhileStatement():
{}
{
"while" "(" Expression() ")" Statement()
}
void DoStatement():
{}
{
"do" Statement() "while" "(" Expression() ")" ";"
}
void ForStatement():
{}
{
"for" "("
(
LOOKAHEAD(Modifiers() Type() ":")
Modifiers() Type() ":" Expression()
|
[ ForInit() ] ";" [ Expression() ] ";" [ ForUpdate() ]
)
")" Statement()
}
void ForInit():
{}
{
LOOKAHEAD( Modifiers() Type() )
LocalVariableDeclaration()
|
StatementExpressionList()
}
void StatementExpressionList():
{}
{
StatementExpression() ( "," StatementExpression() )*
}
void ForUpdate():
{}
{
StatementExpressionList()
}
void BreakStatement():
{}
{
"break" [ ] ";"
}
void ContinueStatement():
{}
{
"continue" [ ] ";"
}
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
* finally/catch is present.
*/
{}
{
"try" Block()
( "catch" "(" FormalParameter() ")" Block() )*
[ "finally" Block() ]
}
/* 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 &&
((MyToken)getToken(1)).realKind == RUNSIGNEDSHIFT} )
">" ">" ">"
)
}
void RSIGNEDSHIFT():
{}
{
( LOOKAHEAD({ getToken(1).kind == GT &&
((MyToken)getToken(1)).realKind == RSIGNEDSHIFT} )
">" ">"
)
}
/* Annotation syntax follows. */
void Annotation():
{}
{
LOOKAHEAD( "@" Name() "(" ( "=" | ")" ))
NormalAnnotation()
|
LOOKAHEAD( "@" Name() "(" )
SingleMemberAnnotation()
|
MarkerAnnotation()
}
void NormalAnnotation():
{}
{
"@" Name() "(" [ MemberValuePairs() ] ")"
}
void MarkerAnnotation():
{}
{
"@" Name()
}
void SingleMemberAnnotation():
{}
{
"@" Name() "(" MemberValue() ")"
}
void MemberValuePairs():
{}
{
MemberValuePair() ( "," MemberValuePair() )*
}
void MemberValuePair():
{}
{
"=" MemberValue()
}
void MemberValue():
{}
{
Annotation()
|
MemberValueArrayInitializer()
|
ConditionalExpression()
}
void MemberValueArrayInitializer():
{}
{
"{" (MemberValue() ( LOOKAHEAD(2) "," MemberValue() )* [ "," ])? "}"
}
/* Annotation Types. */
void AnnotationTypeDeclaration(int modifiers):
{}
{
"@" "interface" AnnotationTypeBody()
}
void AnnotationTypeBody():
{}
{
"{" ( AnnotationTypeMemberDeclaration() )* "}"
}
void AnnotationTypeMemberDeclaration():
{
int modifiers;
}
{
modifiers = Modifiers()
(
LOOKAHEAD(Type() "(")
Type() "(" ")" [ DefaultValue() ] ";"
|
ClassOrInterfaceDeclaration(modifiers)
|
EnumDeclaration(modifiers)
|
AnnotationTypeDeclaration(modifiers)
|
FieldDeclaration(modifiers)
)
|
( ";" )
}
void DefaultValue():
{}
{
"default" MemberValue()
}