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 | {: RESULT = new ParseNode("empty"); :}
374 flag_list ::= flag_change:fc {:
375 ParseNode pn=new ParseNode("flag_list");
379 | flag_list:fl COMMA flag_change:fc {:
384 flag_change ::= IDENTIFIER:id {:
385 RESULT=new ParseNode("name").addChild(id).getRoot();
388 RESULT=new ParseNode("not").addChild("name").addChild(id).getRoot();
391 // 19.2) The Syntactic Grammar
392 goal ::= compilation_unit:cu
398 // 19.3) Lexical Structure.
401 literal ::= INTEGER_LITERAL:integer_lit
403 ParseNode pn=new ParseNode("literal");
404 pn.addChild("integer").setLiteral(integer_lit);
407 | FLOATING_POINT_LITERAL:float_lit
409 ParseNode pn=new ParseNode("literal");
410 pn.addChild("float").setLiteral(float_lit);
413 | BOOLEAN_LITERAL:boolean_lit
415 ParseNode pn=new ParseNode("literal");
416 pn.addChild("boolean").setLiteral(boolean_lit);
419 | CHARACTER_LITERAL:char_lit
421 ParseNode pn=new ParseNode("literal");
422 pn.addChild("char").setLiteral(char_lit);
425 | STRING_LITERAL:string_lit
427 ParseNode pn=new ParseNode("literal");
428 pn.addChild("string").setLiteral(string_lit);
433 RESULT=(new ParseNode("literal")).addChild("null").getRoot();
437 // 19.4) Types, Values, and Variables
438 type ::= primitive_type:type {: RESULT=type; :}
439 | reference_type:type {: RESULT=type; :}
443 numeric_type:type {: RESULT=type; :}
444 | BOOLEAN {: RESULT=(new ParseNode("type")).addChild("boolean").getRoot(); :}
446 numeric_type::= integral_type:type {: RESULT=type; :}
447 | floating_point_type:type {: RESULT=type; :}
450 BYTE {: RESULT=(new ParseNode("type")).addChild("byte").getRoot(); :}
451 | SHORT {: RESULT=(new ParseNode("type")).addChild("short").getRoot(); :}
452 | INT {: RESULT=(new ParseNode("type")).addChild("int").getRoot(); :}
453 | LONG {: RESULT=(new ParseNode("type")).addChild("long").getRoot(); :}
454 | CHAR {: RESULT=(new ParseNode("type")).addChild("char").getRoot(); :}
456 floating_point_type ::=
457 FLOAT {: RESULT=(new ParseNode("type")).addChild("float").getRoot(); :}
458 | DOUBLE {: RESULT=(new ParseNode("type")).addChild("double").getRoot(); :}
462 class_or_interface_type:type {: RESULT=type; :}
463 | array_type:type {: RESULT=type; :}
465 class_or_interface_type ::= name:name {:
466 RESULT=(new ParseNode("type")).addChild("class").addChild(name).getRoot();
469 class_type ::= class_or_interface_type:type {: RESULT=type; :};
470 //interface_type ::= class_or_interface_type;
472 array_type ::= primitive_type:prim dims:dims {:
473 ParseNode pn=(new ParseNode("type")).addChild("array");
474 pn.addChild("basetype").addChild(prim);
475 pn.addChild("dims").setLiteral(dims);
478 | name:name dims:dims {:
479 ParseNode pn=(new ParseNode("type")).addChild("array");
480 pn.addChild("basetype").addChild("type").addChild("class").addChild(name);
481 pn.addChild("dims").setLiteral(dims);
487 name ::= simple_name:name {: RESULT=name; :}
488 | qualified_name:name {: RESULT=name; :}
490 simple_name ::= IDENTIFIER:id {:
491 RESULT=(new ParseNode("name")).addChild("identifier").addChild(id).getRoot();
494 qualified_name ::= name:name DOT IDENTIFIER:id {:
495 ParseNode pn=new ParseNode("name");
496 pn.addChild("base").addChild(name);
497 pn.addChild("identifier").addChild(id);
504 package_declaration_opt:pdo
505 import_declarations_opt:ido
506 type_declarations_opt:tdo {:
507 ParseNode pn=new ParseNode("compilation_unit");
509 pn.addChild("packages").addChild(pdo);
510 pn.addChild("imports").addChild(ido);
514 package_declaration_opt ::= package_declaration:pdo {:
517 {: RESULT=new ParseNode("empty"); :}
520 import_declarations_opt ::= import_declarations:ido {:
523 {: RESULT=new ParseNode("empty"); :}
525 type_declarations_opt ::= type_declarations:tds {:
528 {: RESULT=new ParseNode("empty"); :}
531 import_declarations ::=
532 import_declaration:id {:
533 ParseNode pn=new ParseNode("import_decls_list");
537 | import_declarations:ids import_declaration:id {:
543 type_declarations ::=
544 type_declaration:td {:
545 ParseNode pn=new ParseNode("type_declaration_list");
549 | type_declarations:tds type_declaration:td {:
555 package_declaration ::=
556 PACKAGE name:name SEMICOLON {:
557 ParseNode pn=new ParseNode("package");
562 import_declaration ::=
563 single_type_import_declaration:sid {: RESULT=sid; :}
564 | type_import_on_demand_declaration:iod {: RESULT=iod; :}
566 single_type_import_declaration ::=
567 IMPORT name:name SEMICOLON {:
568 ParseNode pn=new ParseNode("import_single");
573 type_import_on_demand_declaration ::=
574 IMPORT name:name DOT MULT SEMICOLON {:
575 ParseNode pn=new ParseNode("import_ondemand");
586 | task_declaration:td
590 // | interface_declaration
591 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
594 // 19.7) Productions used only in the LALR(1) grammar
596 {: RESULT=new ParseNode("empty"); :}
601 modifiers ::= modifier:mo {:
602 ParseNode pn=new ParseNode("modifier_list");
606 | modifiers:mos modifier:mo {:
612 PUBLIC {: RESULT=new ParseNode("public"); :}|
613 PROTECTED {: RESULT=new ParseNode("protected"); :}|
614 PRIVATE {: RESULT=new ParseNode("private"); :}|
615 STATIC {: RESULT=new ParseNode("static"); :} |
617 FINAL {: RESULT=new ParseNode("final"); :}|
618 NATIVE {: RESULT=new ParseNode("native"); :} |
619 SYNCHRONIZED {: RESULT=new ParseNode("synchronized"); :}
622 // STRICTFP // note that semantic analysis must check that the
623 // context of the modifier allows strictfp.
628 // 19.8.1) Class Declaration:
629 class_declaration ::=
630 modifiers_opt:mo CLASS IDENTIFIER:id super_opt:so //interfaces_opt
633 ParseNode pn=new ParseNode("class_declaration");
634 pn.addChild("modifiers").addChild(mo);
635 pn.addChild("name").addChild(id);
636 pn.addChild("super").addChild(so);
637 pn.addChild("classbody").addChild(body);
641 super ::= EXTENDS class_type:classtype {:
646 {: RESULT=new ParseNode("empty"); :}
652 //interfaces ::= IMPLEMENTS interface_type_list
657 //interface_type_list ::=
659 // | interface_type_list COMMA interface_type
662 class_body ::= LBRACE class_body_declarations_opt:cbdo RBRACE {: RESULT=cbdo; :}
665 class_body_declarations_opt ::=
666 {: RESULT=new ParseNode("empty"); :}
667 | class_body_declarations:cbd {: RESULT=cbd; :};
669 class_body_declarations ::=
670 class_body_declaration:cbd {:
671 ParseNode pn=new ParseNode("class_body_declaration_list");
675 | class_body_declarations:cbds class_body_declaration:cbd {:
681 class_body_declaration ::=
682 class_member_declaration:member {:
683 RESULT=(new ParseNode("member")).addChild(member).getRoot();
685 // | static_initializer
686 | constructor_declaration:constructor {:
687 RESULT=(new ParseNode("constructor")).addChild(constructor).getRoot();
690 RESULT=(new ParseNode("block")).addChild(block).getRoot();
693 class_member_declaration ::=
694 //failure aware computation
695 flag_declaration:flag {:
696 RESULT=(new ParseNode("flag")).addChild(flag).getRoot();
699 field_declaration:field {:
700 RESULT=(new ParseNode("field")).addChild(field).getRoot();
702 | method_declaration:method {:
703 RESULT=(new ParseNode("method")).addChild(method).getRoot();
705 /* repeat the prod for 'class_declaration' here: */
706 // | modifiers_opt CLASS IDENTIFIER super_opt class_body
707 // | interface_declaration
708 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
711 //Failure aware computation
713 FLAG IDENTIFIER:id SEMICOLON {:
714 ParseNode pn=new ParseNode("flag_declaration");
715 pn.addChild("name").addChild(id);
718 EXTERNAL FLAG IDENTIFIER:id SEMICOLON {:
719 ParseNode pn=new ParseNode("flag_declaration");
720 pn.addChild("name").addChild(id);
721 pn.addChild("external");
726 // 19.8.2) Field Declarations
727 field_declaration ::=
728 modifiers_opt:mo type:type variable_declarators:var SEMICOLON {:
729 ParseNode pn=new ParseNode("field_declaration");
730 pn.addChild("modifier").addChild(mo);
731 pn.addChild("type").addChild(type);
732 pn.addChild("variables").addChild(var);
737 variable_declarators ::=
738 variable_declarator:vd {:
739 ParseNode pn=new ParseNode("variable_declarators_list");
743 | variable_declarators:vds COMMA variable_declarator:vd {:
748 variable_declarator ::=
749 variable_declarator_id:id {:
750 ParseNode pn=new ParseNode("variable_declarator");
754 | variable_declarator_id:id EQ variable_initializer:init {:
755 ParseNode pn=new ParseNode("variable_declarator");
757 pn.addChild("initializer").addChild(init);
761 variable_declarator_id ::=
763 RESULT=(new ParseNode("single")).addChild(id).getRoot();:}
764 | variable_declarator_id:id LBRACK RBRACK {:
765 RESULT=(new ParseNode("array")).addChild(id).getRoot();:}
767 variable_initializer ::=
768 expression:exp {: RESULT=exp; :}
769 // | array_initializer
772 // 19.8.3) Method Declarations
773 method_declaration ::=
774 method_header:header method_body:body {:
775 ParseNode pn=new ParseNode("method_declaration");
777 pn.addChild("body").addChild(body);
782 modifiers_opt:mo type:type method_declarator:decl //throws_opt
784 ParseNode pn=new ParseNode("method_header");
785 pn.addChild("modifiers").addChild(mo);
786 pn.addChild("returntype").addChild(type);
790 | modifiers_opt:mo VOID method_declarator:decl //throws_opt
792 ParseNode pn=new ParseNode("method_header");
793 pn.addChild("modifiers").addChild(mo);
798 method_declarator ::=
799 IDENTIFIER:id LPAREN formal_parameter_list_opt:params RPAREN {:
800 ParseNode pn=new ParseNode("method_declarator");
801 pn.addChild("name").addChild(id);
802 pn.addChild("parameters").addChild(params);
805 // | method_declarator LBRACK RBRACK // deprecated
806 // be careful; the above production also allows 'void foo() []'
808 formal_parameter_list_opt ::=
809 {: RESULT=new ParseNode("empty"); :}
810 | formal_parameter_list:fpl {:
814 formal_parameter_list ::=
815 formal_parameter:fp {:
816 ParseNode pn=new ParseNode("formal_parameter_list");
820 | formal_parameter_list:fpl COMMA formal_parameter:fp {:
826 type:type variable_declarator_id:name {:
827 ParseNode pn=new ParseNode("formal_parameter");
832 // | FINAL type variable_declarator_id
837 //throws ::= THROWS class_type_list
839 //class_type_list ::=
841 // | class_type_list COMMA class_type
843 method_body ::= block:block {:
846 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
849 // 19.8.4) Static Initializers
850 //static_initializer ::=
854 // 19.8.5) Constructor Declarations
855 constructor_declaration ::=
856 modifiers_opt:mo constructor_declarator:cd
858 constructor_body:body {:
859 ParseNode pn=new ParseNode("constructor_declaration");
860 pn.addChild("modifiers").addChild(mo);
862 pn.addChild("body").addChild(body);
866 constructor_declarator ::=
867 simple_name:name LPAREN formal_parameter_list_opt:fplo RPAREN {:
868 ParseNode pn=new ParseNode("constructor_declarator");
870 pn.addChild("parameters").addChild(fplo);
875 // LBRACE explicit_constructor_invocation:eci block_statements:bs RBRACE |
876 // LBRACE explicit_constructor_invocation RBRACE |
877 LBRACE block_statements:block RBRACE {:
878 ParseNode pn=new ParseNode("constructor_body");
882 | LBRACE RBRACE {: RESULT=new ParseNode("empty"); :}
884 //explicit_constructor_invocation ::=
885 // THIS LPAREN argument_list_opt RPAREN SEMICOLON
886 // | SUPER LPAREN argument_list_opt RPAREN SEMICOLON
887 // | primary DOT THIS LPAREN argument_list_opt RPAREN SEMICOLON
888 // | primary DOT SUPER LPAREN argument_list_opt RPAREN SEMICOLON
893 // 19.9.1) Interface Declarations
894 //interface_declaration ::=
895 // modifiers_opt INTERFACE IDENTIFIER extends_interfaces_opt
898 //extends_interfaces_opt ::=
899 // | extends_interfaces
901 //extends_interfaces ::=
902 // EXTENDS interface_type
903 // | extends_interfaces COMMA interface_type
906 // LBRACE interface_member_declarations_opt RBRACE
908 //interface_member_declarations_opt ::=
909 // | interface_member_declarations
911 //interface_member_declarations ::=
912 // interface_member_declaration
913 // | interface_member_declarations interface_member_declaration
915 //interface_member_declaration ::=
916 // constant_declaration
917 // | abstract_method_declaration
918 // | class_declaration
919 // | interface_declaration
922 //constant_declaration ::=
924 // // need to semantically check that modifiers of field declaration
925 // // include only PUBLIC, STATIC, or FINAL. Other modifiers are
928 //abstract_method_declaration ::=
929 // method_header SEMICOLON
934 //array_initializer ::=
935 // LBRACE variable_initializers COMMA RBRACE
936 // | LBRACE variable_initializers RBRACE
937 // | LBRACE COMMA RBRACE
940 //variable_initializers ::=
941 // variable_initializer
942 // | variable_initializers COMMA variable_initializer
945 // 19.11) Blocks and Statements
946 block ::= LBRACE block_statements_opt:bso RBRACE {:
950 block_statements_opt ::=
951 {: RESULT=new ParseNode("empty"); :}
952 | block_statements:bs {:
957 block_statement:bs {:
958 ParseNode pn=new ParseNode("block_statement_list");
962 | block_statements:bss block_statement:bs {:
968 local_variable_declaration_statement:lvds {:
971 | statement:statement {:
974 // | class_declaration
975 // | interface_declaration
977 local_variable_declaration_statement ::=
978 local_variable_declaration:lvd SEMICOLON {:
982 local_variable_declaration ::=
983 type:type variable_declarators:var {:
984 ParseNode pn=new ParseNode("local_variable_declaration");
989 // | FINAL type variable_declarators
991 statement ::= statement_without_trailing_substatement:st {:
994 // | labeled_statement:st {: RESULT=st; :}
995 | if_then_statement:st {: RESULT=st; :}
996 | if_then_else_statement:st {: RESULT=st; :}
997 | while_statement:st {: RESULT=st; :}
998 | for_statement:st {: RESULT=st; :}
1000 statement_no_short_if ::=
1001 statement_without_trailing_substatement:st {: RESULT=st; :}
1002 // | labeled_statement_no_short_if:st {: RESULT=st; :}
1003 | if_then_else_statement_no_short_if:st {: RESULT=st; :}
1004 | while_statement_no_short_if:st {: RESULT=st; :}
1005 | for_statement_no_short_if:st {: RESULT=st; :}
1007 statement_without_trailing_substatement ::=
1008 block:st {: RESULT=st; :}
1009 | empty_statement:st {: RESULT=st; :}
1010 | expression_statement:st {: RESULT=st; :}
1011 // | switch_statement
1012 | do_statement:dos {:RESULT=dos; :}
1013 | break_statement:st {: RESULT=st; :}
1014 | continue_statement:st {: RESULT=st; :}
1015 | return_statement:st {: RESULT=st; :}
1016 | task_exitstatement:st {: RESULT=st; :}
1017 // | synchronized_statement
1018 // | throw_statement
1020 // | assert_statement
1023 SEMICOLON {: RESULT=new ParseNode("nop"); :}
1025 //labeled_statement ::=
1026 // IDENTIFIER COLON statement
1028 //labeled_statement_no_short_if ::=
1029 // IDENTIFIER COLON statement_no_short_if
1031 expression_statement ::=
1032 statement_expression:se SEMICOLON {:
1033 ParseNode pn=new ParseNode("expression");
1037 statement_expression ::=
1038 assignment:st {: RESULT=st; :}
1039 | preincrement_expression:st {: RESULT=st; :}
1040 | predecrement_expression:st {: RESULT=st; :}
1041 | postincrement_expression:st {: RESULT=st; :}
1042 | postdecrement_expression:st {: RESULT=st; :}
1043 | method_invocation:st {: RESULT=st; :}
1044 | class_instance_creation_expression:st {: RESULT=st; :}
1046 if_then_statement ::=
1047 IF LPAREN expression:exp RPAREN statement:st {:
1048 ParseNode pn=new ParseNode("ifstatement");
1049 pn.addChild("condition").addChild(exp);
1050 pn.addChild("statement").addChild(st);
1054 if_then_else_statement ::=
1055 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1056 ELSE statement:else_st {:
1057 ParseNode pn=new ParseNode("ifstatement");
1058 pn.addChild("condition").addChild(exp);
1059 pn.addChild("statement").addChild(st);
1060 pn.addChild("else_statement").addChild(else_st);
1064 if_then_else_statement_no_short_if ::=
1065 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1066 ELSE statement_no_short_if:else_st {:
1067 ParseNode pn=new ParseNode("ifstatement");
1068 pn.addChild("condition").addChild(exp);
1069 pn.addChild("statement").addChild(st);
1070 pn.addChild("else_statement").addChild(else_st);
1074 //switch_statement ::=
1075 // SWITCH LPAREN expression RPAREN switch_block
1078 // LBRACE switch_block_statement_groups switch_labels RBRACE
1079 // | LBRACE switch_block_statement_groups RBRACE
1080 // | LBRACE switch_labels RBRACE
1083 //switch_block_statement_groups ::=
1084 // switch_block_statement_group
1085 // | switch_block_statement_groups switch_block_statement_group
1087 //switch_block_statement_group ::=
1088 // switch_labels block_statements
1092 // | switch_labels switch_label
1095 // CASE constant_expression COLON
1100 WHILE LPAREN expression:exp RPAREN statement:st {:
1101 ParseNode pn=new ParseNode("whilestatement");
1102 pn.addChild("condition").addChild(exp);
1103 pn.addChild("statement").addChild(st);
1107 while_statement_no_short_if ::=
1108 WHILE LPAREN expression:exp RPAREN statement_no_short_if:st {:
1109 ParseNode pn=new ParseNode("whilestatement");
1110 pn.addChild("condition").addChild(exp);
1111 pn.addChild("statement").addChild(st);
1116 DO statement:st WHILE LPAREN expression:exp RPAREN SEMICOLON {:
1117 ParseNode pn=new ParseNode("dowhilestatement");
1118 pn.addChild("condition").addChild(exp);
1119 pn.addChild("statement").addChild(st);
1124 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1125 for_update_opt:update RPAREN statement:st {:
1126 ParseNode pn=new ParseNode("forstatement");
1127 pn.addChild("initializer").addChild(init);
1128 pn.addChild("condition").addChild(exp);
1129 pn.addChild("update").addChild(update);
1130 pn.addChild("statement").addChild(st);
1134 for_statement_no_short_if ::=
1135 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1136 for_update_opt:update RPAREN statement_no_short_if:st {:
1137 ParseNode pn=new ParseNode("forstatement");
1138 pn.addChild("initializer").addChild(init);
1139 pn.addChild("condition").addChild(exp);
1140 pn.addChild("update").addChild(update);
1141 pn.addChild("statement").addChild(st);
1146 {: RESULT=new ParseNode("empty"); :}
1147 | for_init:init {: RESULT=init; :}
1149 for_init ::= statement_expression_list:list {: RESULT=list; :}
1150 | local_variable_declaration:decl {: RESULT=decl; :}
1153 {: RESULT=new ParseNode("empty"); :}
1154 | for_update:update {: RESULT=update; :}
1156 for_update ::= statement_expression_list:list {: RESULT=list; :}
1158 statement_expression_list ::=
1159 statement_expression:expr {:
1160 RESULT=(new ParseNode("statement_expression_list")).addChild(expr).getRoot();
1162 | statement_expression_list:list COMMA statement_expression:expr {:
1163 list.addChild(expr);
1168 //identifier_opt ::=
1175 SEMICOLON {: RESULT=new ParseNode("break"); :}
1178 continue_statement ::=
1182 {: RESULT=new ParseNode("continue"); :}
1184 return_statement ::=
1185 RETURN expression_opt:exp SEMICOLON {:
1186 RESULT=(new ParseNode("return")).addChild(exp).getRoot(); :}
1188 //throw_statement ::=
1189 // THROW expression SEMICOLON
1191 //synchronized_statement ::=
1192 // SYNCHRONIZED LPAREN expression RPAREN block
1195 // TRY block catches
1196 // | TRY block catches_opt finally
1201 //catches ::= catch_clause
1202 // | catches catch_clause
1205 // CATCH LPAREN formal_parameter RPAREN block
1207 //finally ::= FINALLY block
1209 //assert_statement ::=
1210 // ASSERT expression SEMICOLON
1211 // | ASSERT expression COLON expression SEMICOLON
1214 // 19.12) Expressions
1215 primary ::= primary_no_new_array:st {:
1217 // | array_creation_init:st {:
1220 | array_creation_uninit:st {:
1224 primary_no_new_array ::=
1225 literal:lit {: RESULT=lit; :}
1226 | THIS {: RESULT=new ParseNode("this"); :}
1227 | LPAREN expression:exp RPAREN {: RESULT=exp; :}
1228 | class_instance_creation_expression:exp {: RESULT=exp; :}
1229 | field_access:exp {: RESULT=exp; :}
1230 | method_invocation:exp {: RESULT=exp; :}
1231 | array_access:exp {: RESULT=exp; :}
1232 // | primitive_type DOT CLASS
1234 // | array_type DOT CLASS
1238 class_instance_creation_expression ::=
1239 NEW class_or_interface_type:type LPAREN argument_list_opt:args RPAREN flag_list_opt:feo {:
1240 ParseNode pn=new ParseNode("createobject");
1246 // | NEW class_or_interface_type LPAREN argument_list_opt RPAREN class_body
1247 // | primary DOT NEW IDENTIFIER
1248 // LPAREN argument_list_opt RPAREN {:
1251 // | primary DOT NEW IDENTIFIER
1252 // LPAREN argument_list_opt RPAREN class_body
1253 // | name DOT NEW IDENTIFIER
1254 // LPAREN argument_list_opt RPAREN
1255 // | name DOT NEW IDENTIFIER
1256 // LPAREN argument_list_opt RPAREN class_body
1258 cons_argument_list_opt ::=
1259 {: RESULT=new ParseNode("empty"); :}
1260 | cons_argument_list:args {: RESULT=args; :}
1263 cons_argument_list ::=
1264 IDENTIFIER:id COLON expression:exp {:
1265 ParseNode pn=new ParseNode("cons_argument_list");
1266 ParseNode pnarg=pn.addChild("binding");
1267 pnarg.addChild("var").addChild(id);
1268 pnarg.addChild("exp").addChild(exp);
1271 | argument_list:list COMMA IDENTIFIER:id COLON expression:exp {:
1272 ParseNode pnarg=new ParseNode("binding");
1273 pnarg.addChild("var").addChild(id);
1274 pnarg.addChild("exp").addChild(exp);
1275 list.addChild(pnarg);
1280 argument_list_opt ::=
1281 {: RESULT=new ParseNode("empty"); :}
1282 | argument_list:args {: RESULT=args; :}
1287 ParseNode pn=new ParseNode("argument_list");
1291 | argument_list:list COMMA expression:exp {:
1296 array_creation_uninit ::=
1297 NEW primitive_type:type dim_exprs:dimexpr dims_opt:dims {:
1298 ParseNode pn=new ParseNode("createarray");
1300 pn.addChild(dimexpr);
1301 pn.addChild("dims_opt").setLiteral(dims);
1304 | NEW class_or_interface_type:type dim_exprs:dimexpr dims_opt:dims {:
1305 ParseNode pn=new ParseNode("createarray");
1307 pn.addChild(dimexpr);
1308 pn.addChild("dims_opt").setLiteral(dims);
1312 //array_creation_init ::=
1313 // NEW primitive_type dims array_initializer
1314 // | NEW class_or_interface_type dims array_initializer
1316 dim_exprs ::= dim_expr:exp {:
1317 ParseNode pn=new ParseNode("dim_exprs");
1320 | dim_exprs:base dim_expr:exp {:
1325 dim_expr ::= LBRACK expression:exp RBRACK {: RESULT=exp; :}
1327 dims_opt ::= {: RESULT=new Integer(0); :}
1328 | dims:dims {: RESULT = dims; :}
1331 dims ::= LBRACK RBRACK {: RESULT=new Integer(1); :}
1332 | dims:dims LBRACK RBRACK {: RESULT=new Integer(dims.intValue()+1); :}
1336 primary:base DOT IDENTIFIER:id {:
1337 ParseNode pn=new ParseNode("fieldaccess");
1338 pn.addChild("base").addChild(base);
1339 pn.addChild("field").addChild(id);
1342 // | SUPER DOT IDENTIFIER
1343 // | name DOT SUPER DOT IDENTIFIER
1345 method_invocation ::=
1346 name:name LPAREN argument_list_opt:args RPAREN {:
1347 ParseNode pn=new ParseNode("methodinvoke1");
1352 | primary:base DOT IDENTIFIER:name LPAREN argument_list_opt:args RPAREN {:
1353 ParseNode pn=new ParseNode("methodinvoke2");
1354 pn.addChild("base").addChild(base);
1355 pn.addChild("id").addChild(name);
1359 // | SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1360 // | name DOT SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1363 name:name LBRACK expression:exp RBRACK {:
1364 ParseNode pn=new ParseNode("arrayaccess");
1365 pn.addChild("base").addChild(name);
1366 pn.addChild("index").addChild(exp);
1369 | primary_no_new_array:base LBRACK expression:exp RBRACK {:
1370 ParseNode pn=new ParseNode("arrayaccess");
1371 pn.addChild("base").addChild(base);
1372 pn.addChild("index").addChild(exp);
1375 // | array_creation_init:init LBRACK expression:exp RBRACK {:
1376 // ParseNode pn=new ParseNode("arrayaccess");
1377 // pn.addChild("init").addChild(init);
1378 // pn.addChild("index").addChild(exp);
1382 postfix_expression ::=
1385 | name:exp {: RESULT=exp; :}
1386 | postincrement_expression:exp {: RESULT=exp; :}
1387 | postdecrement_expression:exp {: RESULT=exp; :}
1389 postincrement_expression ::=
1390 postfix_expression:exp PLUSPLUS
1391 {: RESULT=(new ParseNode("postinc")).addChild(exp).getRoot(); :}
1393 postdecrement_expression ::=
1394 postfix_expression:exp MINUSMINUS
1395 {: RESULT=(new ParseNode("postdec")).addChild(exp).getRoot(); :}
1397 unary_expression ::=
1398 preincrement_expression:exp {: RESULT=exp; :}
1399 | predecrement_expression:exp {: RESULT=exp; :}
1400 | PLUS unary_expression:exp
1401 {: RESULT=(new ParseNode("unaryplus")).addChild(exp).getRoot(); :}
1402 | MINUS unary_expression:exp
1403 {: RESULT=(new ParseNode("unaryminus")).addChild(exp).getRoot(); :}
1404 | unary_expression_not_plus_minus:exp {:
1407 preincrement_expression ::=
1408 PLUSPLUS unary_expression:exp
1409 {: RESULT=(new ParseNode("preinc")).addChild(exp).getRoot(); :}
1411 predecrement_expression ::=
1412 MINUSMINUS unary_expression:exp
1413 {: RESULT=(new ParseNode("predec")).addChild(exp).getRoot(); :}
1415 unary_expression_not_plus_minus ::=
1416 postfix_expression:exp {:
1418 // | COMP unary_expression
1419 | NOT unary_expression:exp
1420 {: RESULT=(new ParseNode("not")).addChild(exp).getRoot(); :}
1421 | cast_expression:exp {: RESULT=exp; :}
1424 LPAREN primitive_type:type
1426 RPAREN unary_expression:exp {:
1427 ParseNode pn=new ParseNode("cast1");
1428 pn.addChild("type").addChild(type);
1429 pn.addChild("exp").addChild(exp);
1432 | LPAREN expression:type RPAREN unary_expression_not_plus_minus:exp {:
1433 ParseNode pn=new ParseNode("cast2");
1434 pn.addChild("type").addChild(type);
1435 pn.addChild("exp").addChild(exp);
1439 // | LPAREN name dims RPAREN unary_expression_not_plus_minus
1441 multiplicative_expression ::=
1442 unary_expression:exp {:
1444 | multiplicative_expression:exp1 MULT unary_expression:exp2 {:
1445 ParseNode pn=new ParseNode("mult");
1450 | multiplicative_expression:exp1 DIV unary_expression:exp2 {:
1451 ParseNode pn=new ParseNode("div");
1456 | multiplicative_expression:exp1 MOD unary_expression:exp2 {:
1457 ParseNode pn=new ParseNode("mod");
1463 additive_expression ::=
1464 multiplicative_expression:exp {:
1466 | additive_expression:exp1 PLUS multiplicative_expression:exp2 {:
1467 ParseNode pn=new ParseNode("add");
1472 | additive_expression:exp1 MINUS multiplicative_expression:exp2 {:
1473 ParseNode pn=new ParseNode("sub");
1479 shift_expression ::=
1480 additive_expression:exp {:
1482 | shift_expression:exp1 LSHIFT additive_expression:exp2 {:
1483 ParseNode pn=new ParseNode("leftshift");
1488 | shift_expression:exp1 RSHIFT additive_expression:exp2 {:
1489 ParseNode pn=new ParseNode("rightshift");
1494 // | shift_expression URSHIFT additive_expression
1496 relational_expression ::=
1497 shift_expression:exp {:
1499 | relational_expression:exp1 LT shift_expression:exp2 {:
1500 ParseNode pn=new ParseNode("comp_lt");
1505 | relational_expression:exp1 GT shift_expression:exp2 {:
1506 ParseNode pn=new ParseNode("comp_gt");
1511 | relational_expression:exp1 LTEQ shift_expression:exp2 {:
1512 ParseNode pn=new ParseNode("comp_lte");
1517 | relational_expression:exp1 GTEQ shift_expression:exp2 {:
1518 ParseNode pn=new ParseNode("comp_gte");
1523 // | relational_expression INSTANCEOF reference_type
1526 equality_expression ::=
1527 relational_expression:exp {:
1529 | equality_expression:exp1 EQEQ relational_expression:exp2 {:
1530 ParseNode pn=new ParseNode("equal");
1535 | equality_expression:exp1 NOTEQ relational_expression:exp2 {:
1536 ParseNode pn=new ParseNode("not_equal");
1543 equality_expression:exp {:
1545 | and_expression:exp1 AND equality_expression:exp2 {:
1546 ParseNode pn=new ParseNode("bitwise_and");
1552 exclusive_or_expression ::=
1553 and_expression:expr {:
1556 | exclusive_or_expression:exp1 XOR and_expression:exp2 {:
1557 ParseNode pn=new ParseNode("bitwise_xor");
1563 inclusive_or_expression ::=
1564 exclusive_or_expression:exclor {:
1566 | inclusive_or_expression:exp1 OR exclusive_or_expression:exp2 {:
1567 ParseNode pn=new ParseNode("bitwise_or");
1573 conditional_and_expression ::=
1574 inclusive_or_expression:inclor {:
1576 | conditional_and_expression:exp1 ANDAND inclusive_or_expression:exp2 {:
1577 ParseNode pn=new ParseNode("logical_and");
1583 conditional_or_expression ::=
1584 conditional_and_expression:condand {:
1586 | conditional_or_expression:exp1 OROR conditional_and_expression:exp2 {:
1587 ParseNode pn=new ParseNode("logical_or");
1593 conditional_expression ::=
1594 conditional_or_expression:condor {:
1596 // | conditional_or_expression QUESTION expression
1597 // COLON conditional_expression
1599 assignment_expression ::=
1600 conditional_expression:expr {:
1602 assignment:assign {:
1605 // semantic check necessary here to ensure a valid left-hand side.
1606 // allowing a parenthesized variable here on the lhs was introduced in
1607 // JLS 2; thanks to Eric Blake for pointing this out.
1608 assignment ::= postfix_expression:lvalue assignment_operator:op assignment_expression:rvalue {:
1609 ParseNode pn=new ParseNode("assignment");
1610 pn.addChild("op").addChild(op);
1611 ParseNode pnargs=pn.addChild("args");
1612 pnargs.addChild(lvalue);
1613 pnargs.addChild(rvalue);
1617 assignment_operator ::=
1618 EQ {: RESULT=new ParseNode("eq"); :}
1619 | MULTEQ {: RESULT=new ParseNode("multeq"); :}
1620 | DIVEQ {: RESULT=new ParseNode("diveq"); :}
1621 | MODEQ {: RESULT=new ParseNode("modeq"); :}
1622 | PLUSEQ {: RESULT=new ParseNode("pluseq"); :}
1623 | MINUSEQ {: RESULT=new ParseNode("minuseq"); :}
1624 | LSHIFTEQ {: RESULT=new ParseNode("lshifteq"); :}
1625 | RSHIFTEQ {: RESULT=new ParseNode("rshifteq"); :}
1626 // | URSHIFTEQ {: RESULT=new ParseNode("urshifteq"); :}
1627 | ANDEQ {: RESULT=new ParseNode("andeq"); :}
1628 | XOREQ {: RESULT=new ParseNode("xoreq"); :}
1629 | OREQ {: RESULT=new ParseNode("oreq"); :}
1632 {: RESULT=new ParseNode("empty"); :}
1636 expression ::= assignment_expression:exp {:
1639 //constant_expression ::=