3 import java_cup.runtime.*;
7 /* Java 1.4 parser for CUP.
8 * Copyright (C) 2002-2003 C. Scott Ananian <cananian@alumni.princeton.edu>
9 * This program is released under the terms of the GPL; see the file
10 * COPYING for more details. There is NO WARRANTY on this code.
14 JDK 1.4 Features added:
16 statement_without_trailing_substatement ::= ...
19 ASSERT expression SEMICOLON
20 | ASSERT expression COLON expression SEMICOLON
26 public Parser(Lexer l) {
31 public void syntax_error(java_cup.runtime.Symbol current) {
32 report_error("Syntax error (" + current.sym + ")", current);
34 public void report_error(String message, java_cup.runtime.Symbol info) {
35 lexer.errorMsg(message, info);
39 scan with {: return lexer.nextToken(); :};
41 terminal BOOLEAN; // primitive_type
42 terminal BYTE, SHORT, INT, LONG, CHAR; // integral_type
43 terminal FLOAT, DOUBLE; // floating_point_type
44 terminal LBRACK, RBRACK; // array_type
45 terminal java.lang.String IDENTIFIER; // name
46 terminal DOT; // qualified_name
47 terminal SEMICOLON, MULT, COMMA, LBRACE, RBRACE, EQ, LPAREN, RPAREN, COLON;
48 terminal PACKAGE; // package_declaration
49 terminal IMPORT; // import_declaration
50 terminal PUBLIC, PROTECTED, PRIVATE; // modifier
51 terminal STATIC; // modifier
52 terminal ABSTRACT, FINAL, NATIVE, SYNCHRONIZED, TRANSIENT, VOLATILE;
53 terminal CLASS; // class_declaration
54 terminal EXTENDS; // super
55 //terminal IMPLEMENTS; // interfaces
56 terminal VOID; // method_header
57 terminal THROWS; // throws
58 terminal THIS, SUPER; // explicit_constructor_invocation
59 //terminal INTERFACE; // interface_declaration
60 terminal IF, ELSE; // if_then_statement, if_then_else_statement
61 terminal SWITCH; // switch_statement
62 terminal CASE, DEFAULT; // switch_label
63 terminal DO, WHILE; // while_statement, do_statement
64 terminal FOR; // for_statement
65 terminal BREAK; // break_statement
66 terminal CONTINUE; // continue_statement
67 terminal RETURN; // return_statement
68 terminal THROW; // throw_statement
69 terminal TRY; // try_statement
70 terminal CATCH; // catch_clause
71 terminal FINALLY; // finally
72 terminal NEW; // class_instance_creation_expression
73 terminal PLUSPLUS; // postincrement_expression
74 terminal MINUSMINUS; // postdecrement_expression
75 terminal PLUS, MINUS, COMP, NOT, DIV, MOD;
76 terminal LSHIFT, RSHIFT, URSHIFT; // shift_expression
77 terminal LT, GT, LTEQ, GTEQ, INSTANCEOF; // relational_expression
78 terminal EQEQ, NOTEQ; // equality_expression
79 terminal AND; // and_expression
80 terminal XOR; // exclusive_or_expression
81 terminal OR; // inclusive_or_expression
82 terminal ANDAND; // conditional_and_expression
83 terminal OROR; // conditional_or_expression
84 terminal QUESTION; // conditional_expression
85 terminal MULTEQ, DIVEQ, MODEQ, PLUSEQ, MINUSEQ; // assignment_operator
86 terminal LSHIFTEQ, RSHIFTEQ, URSHIFTEQ; // assignment_operator
87 terminal ANDEQ, XOREQ, OREQ; // assignment_operator
89 terminal java.lang.Number INTEGER_LITERAL;
90 terminal java.lang.Number FLOATING_POINT_LITERAL;
91 terminal java.lang.Boolean BOOLEAN_LITERAL;
92 terminal java.lang.Character CHARACTER_LITERAL;
93 terminal java.lang.String STRING_LITERAL;
94 terminal NULL_LITERAL;
96 // Reserved but unused:
98 // strictfp keyword, new in Java 1.2
100 // assert keyword, new in Java 1.4
101 terminal ASSERT; // assert_statement
102 // lexer compatibility with Java 1.5
107 // 19.2) The Syntactic Grammar
108 non terminal ParseNode goal;
109 // 19.3) Lexical Structure
110 non terminal ParseNode literal;
111 // 19.4) Types, Values, and Variables
112 non terminal ParseNode type, primitive_type, numeric_type;
113 non terminal ParseNode integral_type, floating_point_type;
114 non terminal ParseNode reference_type;
115 non terminal ParseNode class_or_interface_type;
116 non terminal ParseNode class_type;
117 //non terminal ParseNode interface_type;
118 non terminal ParseNode array_type;
120 non terminal ParseNode name, simple_name, qualified_name;
122 non terminal ParseNode compilation_unit;
123 non terminal ParseNode package_declaration_opt, package_declaration;
124 non terminal ParseNode import_declarations_opt, import_declarations;
125 non terminal ParseNode type_declarations_opt, type_declarations;
126 non terminal ParseNode import_declaration;
127 non terminal ParseNode single_type_import_declaration;
128 non terminal ParseNode type_import_on_demand_declaration;
129 non terminal ParseNode type_declaration;
130 // 19.7) Productions used only in the LALR(1) grammar
131 non terminal ParseNode modifiers_opt, modifiers, modifier;
132 // 19.8.1) Class Declaration
133 non terminal ParseNode class_declaration, super, super_opt;
134 //non terminal interfaces, interfaces_opt, interface_type_list;
135 non terminal ParseNode class_body;
136 non terminal ParseNode class_body_declarations, class_body_declarations_opt;
137 non terminal ParseNode class_body_declaration, class_member_declaration;
138 // 19.8.2) Field Declarations
139 non terminal ParseNode field_declaration, variable_declarators, variable_declarator;
140 non terminal ParseNode variable_declarator_id;
141 non terminal ParseNode variable_initializer;
142 // 19.8.3) Method Declarations
143 non terminal ParseNode method_declaration, method_header, method_declarator;
144 non terminal ParseNode formal_parameter_list_opt, formal_parameter_list;
145 non terminal ParseNode formal_parameter;
146 //non terminal ParseNode throws_opt;
147 //non terminal ParseNode throws;
148 //non terminal ParseNode class_type_list;
149 non terminal ParseNode method_body;
150 // 19.8.4) Static Initializers
151 //non terminal ParseNode static_initializer;
152 // 19.8.5) Constructor Declarations
153 non terminal ParseNode constructor_declaration, constructor_declarator;
154 non terminal ParseNode constructor_body;
155 //non terminal ParseNode explicit_constructor_invocation;
156 // 19.9.1) Interface Declarations
157 //non terminal ParseNode interface_declaration;
158 //non terminal ParseNode extends_interfaces_opt, extends_interfaces;
159 //non terminal ParseNode interface_body;
160 //non terminal ParseNode interface_member_declarations_opt, interface_member_declarations;
161 //non terminal ParseNode interface_member_declaration, constant_declaration;
162 //non terminal ParseNode abstract_method_declaration;
164 //non terminal ParseNode array_initializer;
165 //non terminal ParseNode variable_initializers;
166 // 19.11) Blocks and Statements
167 non terminal ParseNode block;
168 non terminal ParseNode block_statements_opt, block_statements, block_statement;
169 non terminal ParseNode local_variable_declaration_statement, local_variable_declaration;
170 non terminal ParseNode statement, statement_no_short_if;
171 non terminal ParseNode statement_without_trailing_substatement;
172 non terminal ParseNode empty_statement;
173 //non terminal ParseNode labeled_statement, labeled_statement_no_short_if;
174 non terminal ParseNode expression_statement, statement_expression;
175 non terminal ParseNode if_then_statement;
176 non terminal ParseNode if_then_else_statement, if_then_else_statement_no_short_if;
177 //non terminal ParseNode switch_statement, switch_block;
178 //non terminal ParseNode switch_block_statement_groups;
179 //non terminal ParseNode switch_block_statement_group;
180 //non terminal ParseNode switch_labels, switch_label;
181 non terminal ParseNode while_statement, while_statement_no_short_if;
182 non terminal ParseNode do_statement;
183 non terminal ParseNode for_statement, for_statement_no_short_if;
184 non terminal ParseNode for_init_opt, for_init;
185 non terminal ParseNode for_update_opt, for_update;
186 non terminal ParseNode statement_expression_list;
187 //non terminal ParseNode identifier_opt;
188 non terminal ParseNode break_statement, continue_statement;
189 non terminal ParseNode return_statement;
190 //non terminal ParseNode throw_statement;
191 //non terminal ParseNode synchronized_statement, try_statement;
192 //non terminal ParseNode catches_opt;
193 //non terminal ParseNode catches, catch_clause;
194 //non terminal ParseNode finally;
195 //non terminal ParseNode assert_statement;
196 // 19.12) Expressions
197 non terminal ParseNode primary, primary_no_new_array;
198 non terminal ParseNode class_instance_creation_expression;
199 non terminal ParseNode cons_argument_list_opt, cons_argument_list;
200 non terminal ParseNode argument_list_opt, argument_list;
201 //non terminal ParseNode array_creation_init;
202 non terminal ParseNode array_creation_uninit;
203 non terminal ParseNode dim_exprs, dim_expr;
204 non terminal Integer dims_opt, dims;
205 non terminal ParseNode field_access, method_invocation;
206 non terminal ParseNode array_access;
207 non terminal ParseNode postfix_expression;
208 non terminal ParseNode postincrement_expression, postdecrement_expression;
209 non terminal ParseNode unary_expression, unary_expression_not_plus_minus;
210 non terminal ParseNode preincrement_expression, predecrement_expression;
211 non terminal ParseNode cast_expression;
212 non terminal ParseNode multiplicative_expression, additive_expression;
213 non terminal ParseNode shift_expression, relational_expression, equality_expression;
214 non terminal ParseNode and_expression, exclusive_or_expression, inclusive_or_expression;
215 non terminal ParseNode conditional_and_expression, conditional_or_expression;
216 non terminal ParseNode conditional_expression;
217 non terminal ParseNode assignment_expression;
218 non terminal ParseNode assignment;
219 non terminal ParseNode assignment_operator;
220 non terminal ParseNode expression_opt, expression;
221 //non terminal ParseNode constant_expression;
222 //failure aware computation keywords
228 non terminal ParseNode flag_declaration;
229 non terminal ParseNode task_declaration;
230 non terminal ParseNode task_parameter_list;
231 non terminal ParseNode task_parameter;
232 non terminal ParseNode flag_expression;
233 non terminal ParseNode flag_andexpression;
234 non terminal ParseNode flag_notexpression;
235 non terminal ParseNode task_exitstatement;
236 non terminal ParseNode flag_effects_opt;
237 non terminal ParseNode flag_effects;
238 non terminal ParseNode flag_effect;
239 non terminal ParseNode flag_list;
240 non terminal ParseNode flag_list_opt;
241 non terminal ParseNode flag_change;
243 non terminal ParseNode cons_checks_opt;
244 non terminal ParseNode cons_checks;
245 non terminal ParseNode cons_check;
252 TASK IDENTIFIER:id LPAREN task_parameter_list:tpl RPAREN
256 ParseNode pn=new ParseNode("task_declaration");
257 pn.addChild("name").addChild(id);
260 pn.addChild("body").addChild(body);
264 task_parameter_list ::=
266 ParseNode pn=new ParseNode("task_parameter_list");
270 | task_parameter_list:fpl COMMA task_parameter:fp {:
277 type:type variable_declarator_id:name LBRACE flag_expression:exp RBRACE {:
278 ParseNode pn=new ParseNode("task_parameter");
281 pn.addChild("flag").addChild(exp);
287 flag_andexpression:exp {:
290 | flag_expression:exp1 OROR flag_andexpression:exp2 {:
291 ParseNode pn=new ParseNode("or");
298 flag_andexpression ::=
299 flag_notexpression:exp {: RESULT=exp; :}
300 | flag_notexpression:exp1 ANDAND flag_andexpression:exp2 {:
301 ParseNode pn=new ParseNode("and");
308 flag_notexpression ::=
309 NOT flag_notexpression:exp {:
310 ParseNode pn=new ParseNode("not");
314 | LPAREN flag_expression:exp RPAREN {:
318 ParseNode pn=new ParseNode("name");
324 task_exitstatement ::= TASKEXIT flag_effects_opt:opt cons_checks_opt:cco SEMICOLON {:
325 RESULT=(new ParseNode("taskexit")).addChild(opt).getRoot().addChild(cco).getRoot();
328 cons_checks_opt ::= ASSERT LPAREN cons_checks:cc RPAREN {: RESULT=cc; :}
329 | {: RESULT = new ParseNode("empty"); :}
332 cons_checks ::= cons_check:cc {:
333 ParseNode pn=new ParseNode("cons_checks");
337 | cons_checks:ccs COMMA cons_check:cc {:
342 cons_check ::= IDENTIFIER:name LPAREN cons_argument_list_opt:args RPAREN {:
343 ParseNode pn=new ParseNode("cons_check");
344 pn.addChild("name").addChild("identifier").addChild(name);
349 flag_effects_opt ::= LPAREN flag_effects:fe RPAREN {:RESULT=fe;:}
350 | {: RESULT = new ParseNode("empty"); :}
353 flag_effects ::= flag_effect:fe {:
354 ParseNode pn=new ParseNode("flag_effects_list");
358 | flag_effects:fes COMMA flag_effect:fe {:
363 flag_effect ::= IDENTIFIER:id LBRACE flag_list:fl RBRACE {:
364 ParseNode pn=new ParseNode("flag_effect");
365 pn.addChild("name").addChild(id);
370 flag_list_opt ::= LBRACE flag_list:fl RBRACE {:RESULT=fl;:}
371 | LBRACE RBRACE {: RESULT = new ParseNode("empty"); :}
373 {: RESULT = new ParseNode("empty"); :}
376 flag_list ::= flag_change:fc {:
377 ParseNode pn=new ParseNode("flag_list");
381 | flag_list:fl COMMA flag_change:fc {:
386 flag_change ::= IDENTIFIER:id {:
387 RESULT=new ParseNode("name").addChild(id).getRoot();
390 RESULT=new ParseNode("not").addChild("name").addChild(id).getRoot();
393 // 19.2) The Syntactic Grammar
394 goal ::= compilation_unit:cu
400 // 19.3) Lexical Structure.
403 literal ::= INTEGER_LITERAL:integer_lit
405 ParseNode pn=new ParseNode("literal");
406 pn.addChild("integer").setLiteral(integer_lit);
409 | FLOATING_POINT_LITERAL:float_lit
411 ParseNode pn=new ParseNode("literal");
412 pn.addChild("float").setLiteral(float_lit);
415 | BOOLEAN_LITERAL:boolean_lit
417 ParseNode pn=new ParseNode("literal");
418 pn.addChild("boolean").setLiteral(boolean_lit);
421 | CHARACTER_LITERAL:char_lit
423 ParseNode pn=new ParseNode("literal");
424 pn.addChild("char").setLiteral(char_lit);
427 | STRING_LITERAL:string_lit
429 ParseNode pn=new ParseNode("literal");
430 pn.addChild("string").setLiteral(string_lit);
435 RESULT=(new ParseNode("literal")).addChild("null").getRoot();
439 // 19.4) Types, Values, and Variables
440 type ::= primitive_type:type {: RESULT=type; :}
441 | reference_type:type {: RESULT=type; :}
445 numeric_type:type {: RESULT=type; :}
446 | BOOLEAN {: RESULT=(new ParseNode("type")).addChild("boolean").getRoot(); :}
448 numeric_type::= integral_type:type {: RESULT=type; :}
449 | floating_point_type:type {: RESULT=type; :}
452 BYTE {: RESULT=(new ParseNode("type")).addChild("byte").getRoot(); :}
453 | SHORT {: RESULT=(new ParseNode("type")).addChild("short").getRoot(); :}
454 | INT {: RESULT=(new ParseNode("type")).addChild("int").getRoot(); :}
455 | LONG {: RESULT=(new ParseNode("type")).addChild("long").getRoot(); :}
456 | CHAR {: RESULT=(new ParseNode("type")).addChild("char").getRoot(); :}
458 floating_point_type ::=
459 FLOAT {: RESULT=(new ParseNode("type")).addChild("float").getRoot(); :}
460 | DOUBLE {: RESULT=(new ParseNode("type")).addChild("double").getRoot(); :}
464 class_or_interface_type:type {: RESULT=type; :}
465 | array_type:type {: RESULT=type; :}
467 class_or_interface_type ::= name:name {:
468 RESULT=(new ParseNode("type")).addChild("class").addChild(name).getRoot();
471 class_type ::= class_or_interface_type:type {: RESULT=type; :};
472 //interface_type ::= class_or_interface_type;
474 array_type ::= primitive_type:prim dims:dims {:
475 ParseNode pn=(new ParseNode("type")).addChild("array");
476 pn.addChild("basetype").addChild(prim);
477 pn.addChild("dims").setLiteral(dims);
480 | name:name dims:dims {:
481 ParseNode pn=(new ParseNode("type")).addChild("array");
482 pn.addChild("basetype").addChild("type").addChild("class").addChild(name);
483 pn.addChild("dims").setLiteral(dims);
489 name ::= simple_name:name {: RESULT=name; :}
490 | qualified_name:name {: RESULT=name; :}
492 simple_name ::= IDENTIFIER:id {:
493 RESULT=(new ParseNode("name")).addChild("identifier").addChild(id).getRoot();
496 qualified_name ::= name:name DOT IDENTIFIER:id {:
497 ParseNode pn=new ParseNode("name");
498 pn.addChild("base").addChild(name);
499 pn.addChild("identifier").addChild(id);
506 package_declaration_opt:pdo
507 import_declarations_opt:ido
508 type_declarations_opt:tdo {:
509 ParseNode pn=new ParseNode("compilation_unit");
511 pn.addChild("packages").addChild(pdo);
512 pn.addChild("imports").addChild(ido);
516 package_declaration_opt ::= package_declaration:pdo {:
519 {: RESULT=new ParseNode("empty"); :}
522 import_declarations_opt ::= import_declarations:ido {:
525 {: RESULT=new ParseNode("empty"); :}
527 type_declarations_opt ::= type_declarations:tds {:
530 {: RESULT=new ParseNode("empty"); :}
533 import_declarations ::=
534 import_declaration:id {:
535 ParseNode pn=new ParseNode("import_decls_list");
539 | import_declarations:ids import_declaration:id {:
545 type_declarations ::=
546 type_declaration:td {:
547 ParseNode pn=new ParseNode("type_declaration_list");
551 | type_declarations:tds type_declaration:td {:
557 package_declaration ::=
558 PACKAGE name:name SEMICOLON {:
559 ParseNode pn=new ParseNode("package");
564 import_declaration ::=
565 single_type_import_declaration:sid {: RESULT=sid; :}
566 | type_import_on_demand_declaration:iod {: RESULT=iod; :}
568 single_type_import_declaration ::=
569 IMPORT name:name SEMICOLON {:
570 ParseNode pn=new ParseNode("import_single");
575 type_import_on_demand_declaration ::=
576 IMPORT name:name DOT MULT SEMICOLON {:
577 ParseNode pn=new ParseNode("import_ondemand");
588 | task_declaration:td
592 // | interface_declaration
593 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
596 // 19.7) Productions used only in the LALR(1) grammar
598 {: RESULT=new ParseNode("empty"); :}
603 modifiers ::= modifier:mo {:
604 ParseNode pn=new ParseNode("modifier_list");
608 | modifiers:mos modifier:mo {:
614 PUBLIC {: RESULT=new ParseNode("public"); :}|
615 PROTECTED {: RESULT=new ParseNode("protected"); :}|
616 PRIVATE {: RESULT=new ParseNode("private"); :}|
617 STATIC {: RESULT=new ParseNode("static"); :} |
619 FINAL {: RESULT=new ParseNode("final"); :}|
620 NATIVE {: RESULT=new ParseNode("native"); :} |
621 SYNCHRONIZED {: RESULT=new ParseNode("synchronized"); :}
624 // STRICTFP // note that semantic analysis must check that the
625 // context of the modifier allows strictfp.
630 // 19.8.1) Class Declaration:
631 class_declaration ::=
632 modifiers_opt:mo CLASS IDENTIFIER:id super_opt:so //interfaces_opt
635 ParseNode pn=new ParseNode("class_declaration");
636 pn.addChild("modifiers").addChild(mo);
637 pn.addChild("name").addChild(id);
638 pn.addChild("super").addChild(so);
639 pn.addChild("classbody").addChild(body);
643 super ::= EXTENDS class_type:classtype {:
648 {: RESULT=new ParseNode("empty"); :}
654 //interfaces ::= IMPLEMENTS interface_type_list
659 //interface_type_list ::=
661 // | interface_type_list COMMA interface_type
664 class_body ::= LBRACE class_body_declarations_opt:cbdo RBRACE {: RESULT=cbdo; :}
667 class_body_declarations_opt ::=
668 {: RESULT=new ParseNode("empty"); :}
669 | class_body_declarations:cbd {: RESULT=cbd; :};
671 class_body_declarations ::=
672 class_body_declaration:cbd {:
673 ParseNode pn=new ParseNode("class_body_declaration_list");
677 | class_body_declarations:cbds class_body_declaration:cbd {:
683 class_body_declaration ::=
684 class_member_declaration:member {:
685 RESULT=(new ParseNode("member")).addChild(member).getRoot();
687 // | static_initializer
688 | constructor_declaration:constructor {:
689 RESULT=(new ParseNode("constructor")).addChild(constructor).getRoot();
692 RESULT=(new ParseNode("block")).addChild(block).getRoot();
695 class_member_declaration ::=
696 //failure aware computation
697 flag_declaration:flag {:
698 RESULT=(new ParseNode("flag")).addChild(flag).getRoot();
701 field_declaration:field {:
702 RESULT=(new ParseNode("field")).addChild(field).getRoot();
704 | method_declaration:method {:
705 RESULT=(new ParseNode("method")).addChild(method).getRoot();
707 /* repeat the prod for 'class_declaration' here: */
708 // | modifiers_opt CLASS IDENTIFIER super_opt class_body
709 // | interface_declaration
710 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
713 //Failure aware computation
715 FLAG IDENTIFIER:id SEMICOLON {:
716 ParseNode pn=new ParseNode("flag_declaration");
717 pn.addChild("name").addChild(id);
720 EXTERNAL FLAG IDENTIFIER:id SEMICOLON {:
721 ParseNode pn=new ParseNode("flag_declaration");
722 pn.addChild("name").addChild(id);
723 pn.addChild("external");
728 // 19.8.2) Field Declarations
729 field_declaration ::=
730 modifiers_opt:mo type:type variable_declarators:var SEMICOLON {:
731 ParseNode pn=new ParseNode("field_declaration");
732 pn.addChild("modifier").addChild(mo);
733 pn.addChild("type").addChild(type);
734 pn.addChild("variables").addChild(var);
739 variable_declarators ::=
740 variable_declarator:vd {:
741 ParseNode pn=new ParseNode("variable_declarators_list");
745 | variable_declarators:vds COMMA variable_declarator:vd {:
750 variable_declarator ::=
751 variable_declarator_id:id {:
752 ParseNode pn=new ParseNode("variable_declarator");
756 | variable_declarator_id:id EQ variable_initializer:init {:
757 ParseNode pn=new ParseNode("variable_declarator");
759 pn.addChild("initializer").addChild(init);
763 variable_declarator_id ::=
765 RESULT=(new ParseNode("single")).addChild(id).getRoot();:}
766 | variable_declarator_id:id LBRACK RBRACK {:
767 RESULT=(new ParseNode("array")).addChild(id).getRoot();:}
769 variable_initializer ::=
770 expression:exp {: RESULT=exp; :}
771 // | array_initializer
774 // 19.8.3) Method Declarations
775 method_declaration ::=
776 method_header:header method_body:body {:
777 ParseNode pn=new ParseNode("method_declaration");
779 pn.addChild("body").addChild(body);
784 modifiers_opt:mo type:type method_declarator:decl //throws_opt
786 ParseNode pn=new ParseNode("method_header");
787 pn.addChild("modifiers").addChild(mo);
788 pn.addChild("returntype").addChild(type);
792 | modifiers_opt:mo VOID method_declarator:decl //throws_opt
794 ParseNode pn=new ParseNode("method_header");
795 pn.addChild("modifiers").addChild(mo);
800 method_declarator ::=
801 IDENTIFIER:id LPAREN formal_parameter_list_opt:params RPAREN {:
802 ParseNode pn=new ParseNode("method_declarator");
803 pn.addChild("name").addChild(id);
804 pn.addChild("parameters").addChild(params);
807 // | method_declarator LBRACK RBRACK // deprecated
808 // be careful; the above production also allows 'void foo() []'
810 formal_parameter_list_opt ::=
811 {: RESULT=new ParseNode("empty"); :}
812 | formal_parameter_list:fpl {:
816 formal_parameter_list ::=
817 formal_parameter:fp {:
818 ParseNode pn=new ParseNode("formal_parameter_list");
822 | formal_parameter_list:fpl COMMA formal_parameter:fp {:
828 type:type variable_declarator_id:name {:
829 ParseNode pn=new ParseNode("formal_parameter");
834 // | FINAL type variable_declarator_id
839 //throws ::= THROWS class_type_list
841 //class_type_list ::=
843 // | class_type_list COMMA class_type
845 method_body ::= block:block {:
848 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
851 // 19.8.4) Static Initializers
852 //static_initializer ::=
856 // 19.8.5) Constructor Declarations
857 constructor_declaration ::=
858 modifiers_opt:mo constructor_declarator:cd
860 constructor_body:body {:
861 ParseNode pn=new ParseNode("constructor_declaration");
862 pn.addChild("modifiers").addChild(mo);
864 pn.addChild("body").addChild(body);
868 constructor_declarator ::=
869 simple_name:name LPAREN formal_parameter_list_opt:fplo RPAREN {:
870 ParseNode pn=new ParseNode("constructor_declarator");
872 pn.addChild("parameters").addChild(fplo);
877 // LBRACE explicit_constructor_invocation:eci block_statements:bs RBRACE |
878 // LBRACE explicit_constructor_invocation RBRACE |
879 LBRACE block_statements:block RBRACE {:
880 ParseNode pn=new ParseNode("constructor_body");
884 | LBRACE RBRACE {: RESULT=new ParseNode("empty"); :}
886 //explicit_constructor_invocation ::=
887 // THIS LPAREN argument_list_opt RPAREN SEMICOLON
888 // | SUPER LPAREN argument_list_opt RPAREN SEMICOLON
889 // | primary DOT THIS LPAREN argument_list_opt RPAREN SEMICOLON
890 // | primary DOT SUPER LPAREN argument_list_opt RPAREN SEMICOLON
895 // 19.9.1) Interface Declarations
896 //interface_declaration ::=
897 // modifiers_opt INTERFACE IDENTIFIER extends_interfaces_opt
900 //extends_interfaces_opt ::=
901 // | extends_interfaces
903 //extends_interfaces ::=
904 // EXTENDS interface_type
905 // | extends_interfaces COMMA interface_type
908 // LBRACE interface_member_declarations_opt RBRACE
910 //interface_member_declarations_opt ::=
911 // | interface_member_declarations
913 //interface_member_declarations ::=
914 // interface_member_declaration
915 // | interface_member_declarations interface_member_declaration
917 //interface_member_declaration ::=
918 // constant_declaration
919 // | abstract_method_declaration
920 // | class_declaration
921 // | interface_declaration
924 //constant_declaration ::=
926 // // need to semantically check that modifiers of field declaration
927 // // include only PUBLIC, STATIC, or FINAL. Other modifiers are
930 //abstract_method_declaration ::=
931 // method_header SEMICOLON
936 //array_initializer ::=
937 // LBRACE variable_initializers COMMA RBRACE
938 // | LBRACE variable_initializers RBRACE
939 // | LBRACE COMMA RBRACE
942 //variable_initializers ::=
943 // variable_initializer
944 // | variable_initializers COMMA variable_initializer
947 // 19.11) Blocks and Statements
948 block ::= LBRACE block_statements_opt:bso RBRACE {:
952 block_statements_opt ::=
953 {: RESULT=new ParseNode("empty"); :}
954 | block_statements:bs {:
959 block_statement:bs {:
960 ParseNode pn=new ParseNode("block_statement_list");
964 | block_statements:bss block_statement:bs {:
970 local_variable_declaration_statement:lvds {:
973 | statement:statement {:
976 // | class_declaration
977 // | interface_declaration
979 local_variable_declaration_statement ::=
980 local_variable_declaration:lvd SEMICOLON {:
984 local_variable_declaration ::=
985 type:type variable_declarators:var {:
986 ParseNode pn=new ParseNode("local_variable_declaration");
991 // | FINAL type variable_declarators
993 statement ::= statement_without_trailing_substatement:st {:
996 // | labeled_statement:st {: RESULT=st; :}
997 | if_then_statement:st {: RESULT=st; :}
998 | if_then_else_statement:st {: RESULT=st; :}
999 | while_statement:st {: RESULT=st; :}
1000 | for_statement:st {: RESULT=st; :}
1002 statement_no_short_if ::=
1003 statement_without_trailing_substatement:st {: RESULT=st; :}
1004 // | labeled_statement_no_short_if:st {: RESULT=st; :}
1005 | if_then_else_statement_no_short_if:st {: RESULT=st; :}
1006 | while_statement_no_short_if:st {: RESULT=st; :}
1007 | for_statement_no_short_if:st {: RESULT=st; :}
1009 statement_without_trailing_substatement ::=
1010 block:st {: RESULT=st; :}
1011 | empty_statement:st {: RESULT=st; :}
1012 | expression_statement:st {: RESULT=st; :}
1013 // | switch_statement
1014 | do_statement:dos {:RESULT=dos; :}
1015 | break_statement:st {: RESULT=st; :}
1016 | continue_statement:st {: RESULT=st; :}
1017 | return_statement:st {: RESULT=st; :}
1018 | task_exitstatement:st {: RESULT=st; :}
1019 // | synchronized_statement
1020 // | throw_statement
1022 // | assert_statement
1025 SEMICOLON {: RESULT=new ParseNode("nop"); :}
1027 //labeled_statement ::=
1028 // IDENTIFIER COLON statement
1030 //labeled_statement_no_short_if ::=
1031 // IDENTIFIER COLON statement_no_short_if
1033 expression_statement ::=
1034 statement_expression:se SEMICOLON {:
1035 ParseNode pn=new ParseNode("expression");
1039 statement_expression ::=
1040 assignment:st {: RESULT=st; :}
1041 | preincrement_expression:st {: RESULT=st; :}
1042 | predecrement_expression:st {: RESULT=st; :}
1043 | postincrement_expression:st {: RESULT=st; :}
1044 | postdecrement_expression:st {: RESULT=st; :}
1045 | method_invocation:st {: RESULT=st; :}
1046 | class_instance_creation_expression:st {: RESULT=st; :}
1048 if_then_statement ::=
1049 IF LPAREN expression:exp RPAREN statement:st {:
1050 ParseNode pn=new ParseNode("ifstatement");
1051 pn.addChild("condition").addChild(exp);
1052 pn.addChild("statement").addChild(st);
1056 if_then_else_statement ::=
1057 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1058 ELSE statement:else_st {:
1059 ParseNode pn=new ParseNode("ifstatement");
1060 pn.addChild("condition").addChild(exp);
1061 pn.addChild("statement").addChild(st);
1062 pn.addChild("else_statement").addChild(else_st);
1066 if_then_else_statement_no_short_if ::=
1067 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1068 ELSE statement_no_short_if:else_st {:
1069 ParseNode pn=new ParseNode("ifstatement");
1070 pn.addChild("condition").addChild(exp);
1071 pn.addChild("statement").addChild(st);
1072 pn.addChild("else_statement").addChild(else_st);
1076 //switch_statement ::=
1077 // SWITCH LPAREN expression RPAREN switch_block
1080 // LBRACE switch_block_statement_groups switch_labels RBRACE
1081 // | LBRACE switch_block_statement_groups RBRACE
1082 // | LBRACE switch_labels RBRACE
1085 //switch_block_statement_groups ::=
1086 // switch_block_statement_group
1087 // | switch_block_statement_groups switch_block_statement_group
1089 //switch_block_statement_group ::=
1090 // switch_labels block_statements
1094 // | switch_labels switch_label
1097 // CASE constant_expression COLON
1102 WHILE LPAREN expression:exp RPAREN statement:st {:
1103 ParseNode pn=new ParseNode("whilestatement");
1104 pn.addChild("condition").addChild(exp);
1105 pn.addChild("statement").addChild(st);
1109 while_statement_no_short_if ::=
1110 WHILE LPAREN expression:exp RPAREN statement_no_short_if:st {:
1111 ParseNode pn=new ParseNode("whilestatement");
1112 pn.addChild("condition").addChild(exp);
1113 pn.addChild("statement").addChild(st);
1118 DO statement:st WHILE LPAREN expression:exp RPAREN SEMICOLON {:
1119 ParseNode pn=new ParseNode("dowhilestatement");
1120 pn.addChild("condition").addChild(exp);
1121 pn.addChild("statement").addChild(st);
1126 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1127 for_update_opt:update RPAREN statement:st {:
1128 ParseNode pn=new ParseNode("forstatement");
1129 pn.addChild("initializer").addChild(init);
1130 pn.addChild("condition").addChild(exp);
1131 pn.addChild("update").addChild(update);
1132 pn.addChild("statement").addChild(st);
1136 for_statement_no_short_if ::=
1137 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1138 for_update_opt:update RPAREN statement_no_short_if:st {:
1139 ParseNode pn=new ParseNode("forstatement");
1140 pn.addChild("initializer").addChild(init);
1141 pn.addChild("condition").addChild(exp);
1142 pn.addChild("update").addChild(update);
1143 pn.addChild("statement").addChild(st);
1148 {: RESULT=new ParseNode("empty"); :}
1149 | for_init:init {: RESULT=init; :}
1151 for_init ::= statement_expression_list:list {: RESULT=list; :}
1152 | local_variable_declaration:decl {: RESULT=decl; :}
1155 {: RESULT=new ParseNode("empty"); :}
1156 | for_update:update {: RESULT=update; :}
1158 for_update ::= statement_expression_list:list {: RESULT=list; :}
1160 statement_expression_list ::=
1161 statement_expression:expr {:
1162 RESULT=(new ParseNode("statement_expression_list")).addChild(expr).getRoot();
1164 | statement_expression_list:list COMMA statement_expression:expr {:
1165 list.addChild(expr);
1170 //identifier_opt ::=
1177 SEMICOLON {: RESULT=new ParseNode("break"); :}
1180 continue_statement ::=
1184 {: RESULT=new ParseNode("continue"); :}
1186 return_statement ::=
1187 RETURN expression_opt:exp SEMICOLON {:
1188 RESULT=(new ParseNode("return")).addChild(exp).getRoot(); :}
1190 //throw_statement ::=
1191 // THROW expression SEMICOLON
1193 //synchronized_statement ::=
1194 // SYNCHRONIZED LPAREN expression RPAREN block
1197 // TRY block catches
1198 // | TRY block catches_opt finally
1203 //catches ::= catch_clause
1204 // | catches catch_clause
1207 // CATCH LPAREN formal_parameter RPAREN block
1209 //finally ::= FINALLY block
1211 //assert_statement ::=
1212 // ASSERT expression SEMICOLON
1213 // | ASSERT expression COLON expression SEMICOLON
1216 // 19.12) Expressions
1217 primary ::= primary_no_new_array:st {:
1219 // | array_creation_init:st {:
1222 | array_creation_uninit:st {:
1226 primary_no_new_array ::=
1227 literal:lit {: RESULT=lit; :}
1228 | THIS {: RESULT=new ParseNode("this"); :}
1229 | LPAREN expression:exp RPAREN {: RESULT=exp; :}
1230 | class_instance_creation_expression:exp {: RESULT=exp; :}
1231 | field_access:exp {: RESULT=exp; :}
1232 | method_invocation:exp {: RESULT=exp; :}
1233 | array_access:exp {: RESULT=exp; :}
1234 // | primitive_type DOT CLASS
1236 // | array_type DOT CLASS
1240 class_instance_creation_expression ::=
1241 NEW class_or_interface_type:type LPAREN argument_list_opt:args RPAREN flag_list_opt:feo {:
1242 ParseNode pn=new ParseNode("createobject");
1248 // | NEW class_or_interface_type LPAREN argument_list_opt RPAREN class_body
1249 // | primary DOT NEW IDENTIFIER
1250 // LPAREN argument_list_opt RPAREN {:
1253 // | primary DOT NEW IDENTIFIER
1254 // LPAREN argument_list_opt RPAREN class_body
1255 // | name DOT NEW IDENTIFIER
1256 // LPAREN argument_list_opt RPAREN
1257 // | name DOT NEW IDENTIFIER
1258 // LPAREN argument_list_opt RPAREN class_body
1260 cons_argument_list_opt ::=
1261 {: RESULT=new ParseNode("empty"); :}
1262 | cons_argument_list:args {: RESULT=args; :}
1265 cons_argument_list ::=
1266 IDENTIFIER:id COLON expression:exp {:
1267 ParseNode pn=new ParseNode("cons_argument_list");
1268 ParseNode pnarg=pn.addChild("binding");
1269 pnarg.addChild("var").addChild(id);
1270 pnarg.addChild("exp").addChild(exp);
1273 | argument_list:list COMMA IDENTIFIER:id COLON expression:exp {:
1274 ParseNode pnarg=new ParseNode("binding");
1275 pnarg.addChild("var").addChild(id);
1276 pnarg.addChild("exp").addChild(exp);
1277 list.addChild(pnarg);
1282 argument_list_opt ::=
1283 {: RESULT=new ParseNode("empty"); :}
1284 | argument_list:args {: RESULT=args; :}
1289 ParseNode pn=new ParseNode("argument_list");
1293 | argument_list:list COMMA expression:exp {:
1298 array_creation_uninit ::=
1299 NEW primitive_type:type dim_exprs:dimexpr dims_opt:dims {:
1300 ParseNode pn=new ParseNode("createarray");
1302 pn.addChild(dimexpr);
1303 pn.addChild("dims_opt").setLiteral(dims);
1306 | NEW class_or_interface_type:type dim_exprs:dimexpr dims_opt:dims {:
1307 ParseNode pn=new ParseNode("createarray");
1309 pn.addChild(dimexpr);
1310 pn.addChild("dims_opt").setLiteral(dims);
1314 //array_creation_init ::=
1315 // NEW primitive_type dims array_initializer
1316 // | NEW class_or_interface_type dims array_initializer
1318 dim_exprs ::= dim_expr:exp {:
1319 ParseNode pn=new ParseNode("dim_exprs");
1322 | dim_exprs:base dim_expr:exp {:
1327 dim_expr ::= LBRACK expression:exp RBRACK {: RESULT=exp; :}
1329 dims_opt ::= {: RESULT=new Integer(0); :}
1330 | dims:dims {: RESULT = dims; :}
1333 dims ::= LBRACK RBRACK {: RESULT=new Integer(1); :}
1334 | dims:dims LBRACK RBRACK {: RESULT=new Integer(dims.intValue()+1); :}
1338 primary:base DOT IDENTIFIER:id {:
1339 ParseNode pn=new ParseNode("fieldaccess");
1340 pn.addChild("base").addChild(base);
1341 pn.addChild("field").addChild(id);
1344 // | SUPER DOT IDENTIFIER
1345 // | name DOT SUPER DOT IDENTIFIER
1347 method_invocation ::=
1348 name:name LPAREN argument_list_opt:args RPAREN {:
1349 ParseNode pn=new ParseNode("methodinvoke1");
1354 | primary:base DOT IDENTIFIER:name LPAREN argument_list_opt:args RPAREN {:
1355 ParseNode pn=new ParseNode("methodinvoke2");
1356 pn.addChild("base").addChild(base);
1357 pn.addChild("id").addChild(name);
1361 // | SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1362 // | name DOT SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1365 name:name LBRACK expression:exp RBRACK {:
1366 ParseNode pn=new ParseNode("arrayaccess");
1367 pn.addChild("base").addChild(name);
1368 pn.addChild("index").addChild(exp);
1371 | primary_no_new_array:base LBRACK expression:exp RBRACK {:
1372 ParseNode pn=new ParseNode("arrayaccess");
1373 pn.addChild("base").addChild(base);
1374 pn.addChild("index").addChild(exp);
1377 // | array_creation_init:init LBRACK expression:exp RBRACK {:
1378 // ParseNode pn=new ParseNode("arrayaccess");
1379 // pn.addChild("init").addChild(init);
1380 // pn.addChild("index").addChild(exp);
1384 postfix_expression ::=
1387 | name:exp {: RESULT=exp; :}
1388 | postincrement_expression:exp {: RESULT=exp; :}
1389 | postdecrement_expression:exp {: RESULT=exp; :}
1391 postincrement_expression ::=
1392 postfix_expression:exp PLUSPLUS
1393 {: RESULT=(new ParseNode("postinc")).addChild(exp).getRoot(); :}
1395 postdecrement_expression ::=
1396 postfix_expression:exp MINUSMINUS
1397 {: RESULT=(new ParseNode("postdec")).addChild(exp).getRoot(); :}
1399 unary_expression ::=
1400 preincrement_expression:exp {: RESULT=exp; :}
1401 | predecrement_expression:exp {: RESULT=exp; :}
1402 | PLUS unary_expression:exp
1403 {: RESULT=(new ParseNode("unaryplus")).addChild(exp).getRoot(); :}
1404 | MINUS unary_expression:exp
1405 {: RESULT=(new ParseNode("unaryminus")).addChild(exp).getRoot(); :}
1406 | unary_expression_not_plus_minus:exp {:
1409 preincrement_expression ::=
1410 PLUSPLUS unary_expression:exp
1411 {: RESULT=(new ParseNode("preinc")).addChild(exp).getRoot(); :}
1413 predecrement_expression ::=
1414 MINUSMINUS unary_expression:exp
1415 {: RESULT=(new ParseNode("predec")).addChild(exp).getRoot(); :}
1417 unary_expression_not_plus_minus ::=
1418 postfix_expression:exp {:
1420 // | COMP unary_expression
1421 | NOT unary_expression:exp
1422 {: RESULT=(new ParseNode("not")).addChild(exp).getRoot(); :}
1423 | cast_expression:exp {: RESULT=exp; :}
1426 LPAREN primitive_type:type
1428 RPAREN unary_expression:exp {:
1429 ParseNode pn=new ParseNode("cast1");
1430 pn.addChild("type").addChild(type);
1431 pn.addChild("exp").addChild(exp);
1434 | LPAREN expression:type RPAREN unary_expression_not_plus_minus:exp {:
1435 ParseNode pn=new ParseNode("cast2");
1436 pn.addChild("type").addChild(type);
1437 pn.addChild("exp").addChild(exp);
1441 // | LPAREN name dims RPAREN unary_expression_not_plus_minus
1443 multiplicative_expression ::=
1444 unary_expression:exp {:
1446 | multiplicative_expression:exp1 MULT unary_expression:exp2 {:
1447 ParseNode pn=new ParseNode("mult");
1452 | multiplicative_expression:exp1 DIV unary_expression:exp2 {:
1453 ParseNode pn=new ParseNode("div");
1458 | multiplicative_expression:exp1 MOD unary_expression:exp2 {:
1459 ParseNode pn=new ParseNode("mod");
1465 additive_expression ::=
1466 multiplicative_expression:exp {:
1468 | additive_expression:exp1 PLUS multiplicative_expression:exp2 {:
1469 ParseNode pn=new ParseNode("add");
1474 | additive_expression:exp1 MINUS multiplicative_expression:exp2 {:
1475 ParseNode pn=new ParseNode("sub");
1481 shift_expression ::=
1482 additive_expression:exp {:
1484 | shift_expression:exp1 LSHIFT additive_expression:exp2 {:
1485 ParseNode pn=new ParseNode("leftshift");
1490 | shift_expression:exp1 RSHIFT additive_expression:exp2 {:
1491 ParseNode pn=new ParseNode("rightshift");
1496 // | shift_expression URSHIFT additive_expression
1498 relational_expression ::=
1499 shift_expression:exp {:
1501 | relational_expression:exp1 LT shift_expression:exp2 {:
1502 ParseNode pn=new ParseNode("comp_lt");
1507 | relational_expression:exp1 GT shift_expression:exp2 {:
1508 ParseNode pn=new ParseNode("comp_gt");
1513 | relational_expression:exp1 LTEQ shift_expression:exp2 {:
1514 ParseNode pn=new ParseNode("comp_lte");
1519 | relational_expression:exp1 GTEQ shift_expression:exp2 {:
1520 ParseNode pn=new ParseNode("comp_gte");
1525 // | relational_expression INSTANCEOF reference_type
1528 equality_expression ::=
1529 relational_expression:exp {:
1531 | equality_expression:exp1 EQEQ relational_expression:exp2 {:
1532 ParseNode pn=new ParseNode("equal");
1537 | equality_expression:exp1 NOTEQ relational_expression:exp2 {:
1538 ParseNode pn=new ParseNode("not_equal");
1545 equality_expression:exp {:
1547 | and_expression:exp1 AND equality_expression:exp2 {:
1548 ParseNode pn=new ParseNode("bitwise_and");
1554 exclusive_or_expression ::=
1555 and_expression:expr {:
1558 | exclusive_or_expression:exp1 XOR and_expression:exp2 {:
1559 ParseNode pn=new ParseNode("bitwise_xor");
1565 inclusive_or_expression ::=
1566 exclusive_or_expression:exclor {:
1568 | inclusive_or_expression:exp1 OR exclusive_or_expression:exp2 {:
1569 ParseNode pn=new ParseNode("bitwise_or");
1575 conditional_and_expression ::=
1576 inclusive_or_expression:inclor {:
1578 | conditional_and_expression:exp1 ANDAND inclusive_or_expression:exp2 {:
1579 ParseNode pn=new ParseNode("logical_and");
1585 conditional_or_expression ::=
1586 conditional_and_expression:condand {:
1588 | conditional_or_expression:exp1 OROR conditional_and_expression:exp2 {:
1589 ParseNode pn=new ParseNode("logical_or");
1595 conditional_expression ::=
1596 conditional_or_expression:condor {:
1598 // | conditional_or_expression QUESTION expression
1599 // COLON conditional_expression
1601 assignment_expression ::=
1602 conditional_expression:expr {:
1604 assignment:assign {:
1607 // semantic check necessary here to ensure a valid left-hand side.
1608 // allowing a parenthesized variable here on the lhs was introduced in
1609 // JLS 2; thanks to Eric Blake for pointing this out.
1610 assignment ::= postfix_expression:lvalue assignment_operator:op assignment_expression:rvalue {:
1611 ParseNode pn=new ParseNode("assignment");
1612 pn.addChild("op").addChild(op);
1613 ParseNode pnargs=pn.addChild("args");
1614 pnargs.addChild(lvalue);
1615 pnargs.addChild(rvalue);
1619 assignment_operator ::=
1620 EQ {: RESULT=new ParseNode("eq"); :}
1621 | MULTEQ {: RESULT=new ParseNode("multeq"); :}
1622 | DIVEQ {: RESULT=new ParseNode("diveq"); :}
1623 | MODEQ {: RESULT=new ParseNode("modeq"); :}
1624 | PLUSEQ {: RESULT=new ParseNode("pluseq"); :}
1625 | MINUSEQ {: RESULT=new ParseNode("minuseq"); :}
1626 | LSHIFTEQ {: RESULT=new ParseNode("lshifteq"); :}
1627 | RSHIFTEQ {: RESULT=new ParseNode("rshifteq"); :}
1628 // | URSHIFTEQ {: RESULT=new ParseNode("urshifteq"); :}
1629 | ANDEQ {: RESULT=new ParseNode("andeq"); :}
1630 | XOREQ {: RESULT=new ParseNode("xoreq"); :}
1631 | OREQ {: RESULT=new ParseNode("oreq"); :}
1634 {: RESULT=new ParseNode("empty"); :}
1638 expression ::= assignment_expression:exp {:
1641 //constant_expression ::=