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 argument_list_opt, argument_list;
200 //non terminal ParseNode array_creation_init;
201 non terminal ParseNode array_creation_uninit;
202 non terminal ParseNode dim_exprs, dim_expr;
203 non terminal Integer dims_opt, dims;
204 non terminal ParseNode field_access, method_invocation;
205 non terminal ParseNode array_access;
206 non terminal ParseNode postfix_expression;
207 non terminal ParseNode postincrement_expression, postdecrement_expression;
208 non terminal ParseNode unary_expression, unary_expression_not_plus_minus;
209 non terminal ParseNode preincrement_expression, predecrement_expression;
210 non terminal ParseNode cast_expression;
211 non terminal ParseNode multiplicative_expression, additive_expression;
212 non terminal ParseNode shift_expression, relational_expression, equality_expression;
213 non terminal ParseNode and_expression, exclusive_or_expression, inclusive_or_expression;
214 non terminal ParseNode conditional_and_expression, conditional_or_expression;
215 non terminal ParseNode conditional_expression;
216 non terminal ParseNode assignment_expression;
217 non terminal ParseNode assignment;
218 non terminal ParseNode assignment_operator;
219 non terminal ParseNode expression_opt, expression;
220 //non terminal ParseNode constant_expression;
221 //failure aware computation keywords
226 non terminal ParseNode flag_declaration;
227 non terminal ParseNode task_declaration;
228 non terminal ParseNode task_parameter_list;
229 non terminal ParseNode task_parameter;
230 non terminal ParseNode flag_expression;
231 non terminal ParseNode flag_andexpression;
232 non terminal ParseNode flag_notexpression;
233 non terminal ParseNode task_exitstatement;
234 non terminal ParseNode flag_effects_opt;
235 non terminal ParseNode flag_effects;
236 non terminal ParseNode flag_effect;
237 non terminal ParseNode flag_list;
238 non terminal ParseNode flag_list_opt;
239 non terminal ParseNode flag_change;
241 non terminal ParseNode cons_checks_opt;
242 non terminal ParseNode cons_checks;
243 non terminal ParseNode cons_check;
250 TASK IDENTIFIER:id LPAREN task_parameter_list:tpl RPAREN
254 ParseNode pn=new ParseNode("task_declaration");
255 pn.addChild("name").addChild(id);
258 pn.addChild("body").addChild(body);
262 task_parameter_list ::=
264 ParseNode pn=new ParseNode("task_parameter_list");
268 | task_parameter_list:fpl COMMA task_parameter:fp {:
275 type:type variable_declarator_id:name LBRACE flag_expression:exp RBRACE {:
276 ParseNode pn=new ParseNode("task_parameter");
279 pn.addChild("flag").addChild(exp);
285 flag_andexpression:exp {:
288 | flag_expression:exp1 OROR flag_andexpression:exp2 {:
289 ParseNode pn=new ParseNode("or");
296 flag_andexpression ::=
297 flag_notexpression:exp {: RESULT=exp; :}
298 | flag_notexpression:exp1 ANDAND flag_andexpression:exp2 {:
299 ParseNode pn=new ParseNode("and");
306 flag_notexpression ::=
307 NOT flag_notexpression:exp {:
308 ParseNode pn=new ParseNode("not");
312 | LPAREN flag_expression:exp RPAREN {:
316 ParseNode pn=new ParseNode("name");
322 task_exitstatement ::= TASKEXIT flag_effects_opt:opt cons_checks_opt:cco SEMICOLON {:
323 RESULT=(new ParseNode("taskexit")).addChild(opt).getRoot().addChild(cco).getRoot();
326 cons_checks_opt ::= ASSERT LPAREN cons_checks:cc RPAREN {: RESULT=cc; :}
327 | {: RESULT = new ParseNode("empty"); :}
330 cons_checks ::= cons_check:cc {:
331 ParseNode pn=new ParseNode("cons_checks");
335 | cons_checks:ccs COMMA cons_check:cc {:
340 cons_check ::= IDENTIFIER:id LBRACE IDENTIFIER:spec RBRACE {:
341 ParseNode pn=new ParseNode("cons_check");
342 pn.addChild("name").addChild(id);
343 pn.addChild("spec").addChild(spec);
347 flag_effects_opt ::= LPAREN flag_effects:fe RPAREN {:RESULT=fe;:}
348 | {: RESULT = new ParseNode("empty"); :}
351 flag_effects ::= flag_effect:fe {:
352 ParseNode pn=new ParseNode("flag_effects_list");
356 | flag_effects:fes COMMA flag_effect:fe {:
361 flag_effect ::= IDENTIFIER:id LBRACE flag_list:fl RBRACE {:
362 ParseNode pn=new ParseNode("flag_effect");
363 pn.addChild("name").addChild(id);
368 flag_list_opt ::= LBRACE flag_list:fl RBRACE {:RESULT=fl;:}
369 | {: RESULT = new ParseNode("empty"); :}
372 flag_list ::= flag_change:fc {:
373 ParseNode pn=new ParseNode("flag_list");
377 | flag_list:fl COMMA flag_change:fc {:
382 flag_change ::= IDENTIFIER:id {:
383 RESULT=new ParseNode("name").addChild(id).getRoot();
386 RESULT=new ParseNode("not").addChild("name").addChild(id).getRoot();
389 // 19.2) The Syntactic Grammar
390 goal ::= compilation_unit:cu
396 // 19.3) Lexical Structure.
399 literal ::= INTEGER_LITERAL:integer_lit
401 ParseNode pn=new ParseNode("literal");
402 pn.addChild("integer").setLiteral(integer_lit);
405 | FLOATING_POINT_LITERAL:float_lit
407 ParseNode pn=new ParseNode("literal");
408 pn.addChild("float").setLiteral(float_lit);
411 | BOOLEAN_LITERAL:boolean_lit
413 ParseNode pn=new ParseNode("literal");
414 pn.addChild("boolean").setLiteral(boolean_lit);
417 | CHARACTER_LITERAL:char_lit
419 ParseNode pn=new ParseNode("literal");
420 pn.addChild("char").setLiteral(char_lit);
423 | STRING_LITERAL:string_lit
425 ParseNode pn=new ParseNode("literal");
426 pn.addChild("string").setLiteral(string_lit);
431 RESULT=(new ParseNode("literal")).addChild("null").getRoot();
435 // 19.4) Types, Values, and Variables
436 type ::= primitive_type:type {: RESULT=type; :}
437 | reference_type:type {: RESULT=type; :}
441 numeric_type:type {: RESULT=type; :}
442 | BOOLEAN {: RESULT=(new ParseNode("type")).addChild("boolean").getRoot(); :}
444 numeric_type::= integral_type:type {: RESULT=type; :}
445 | floating_point_type:type {: RESULT=type; :}
448 BYTE {: RESULT=(new ParseNode("type")).addChild("byte").getRoot(); :}
449 | SHORT {: RESULT=(new ParseNode("type")).addChild("short").getRoot(); :}
450 | INT {: RESULT=(new ParseNode("type")).addChild("int").getRoot(); :}
451 | LONG {: RESULT=(new ParseNode("type")).addChild("long").getRoot(); :}
452 | CHAR {: RESULT=(new ParseNode("type")).addChild("char").getRoot(); :}
454 floating_point_type ::=
455 FLOAT {: RESULT=(new ParseNode("type")).addChild("float").getRoot(); :}
456 | DOUBLE {: RESULT=(new ParseNode("type")).addChild("double").getRoot(); :}
460 class_or_interface_type:type {: RESULT=type; :}
461 | array_type:type {: RESULT=type; :}
463 class_or_interface_type ::= name:name {:
464 RESULT=(new ParseNode("type")).addChild("class").addChild(name).getRoot();
467 class_type ::= class_or_interface_type:type {: RESULT=type; :};
468 //interface_type ::= class_or_interface_type;
470 array_type ::= primitive_type:prim dims:dims {:
471 ParseNode pn=(new ParseNode("type")).addChild("array");
472 pn.addChild("basetype").addChild(prim);
473 pn.addChild("dims").setLiteral(dims);
476 | name:name dims:dims {:
477 ParseNode pn=(new ParseNode("type")).addChild("array");
478 pn.addChild("basetype").addChild("type").addChild("class").addChild(name);
479 pn.addChild("dims").setLiteral(dims);
485 name ::= simple_name:name {: RESULT=name; :}
486 | qualified_name:name {: RESULT=name; :}
488 simple_name ::= IDENTIFIER:id {:
489 RESULT=(new ParseNode("name")).addChild("identifier").addChild(id).getRoot();
492 qualified_name ::= name:name DOT IDENTIFIER:id {:
493 ParseNode pn=new ParseNode("name");
494 pn.addChild("base").addChild(name);
495 pn.addChild("identifier").addChild(id);
502 // package_declaration_opt
503 // import_declarations_opt
504 type_declarations_opt:tdo {:
505 ParseNode pn=new ParseNode("compilation_unit");
510 //package_declaration_opt ::= package_declaration | ;
511 //import_declarations_opt ::= import_declarations | ;
512 type_declarations_opt ::= type_declarations:tds {:
515 {: RESULT=new ParseNode("empty"); :}
518 //import_declarations ::=
519 // import_declaration
520 // | import_declarations import_declaration
523 type_declarations ::=
524 type_declaration:td {:
525 ParseNode pn=new ParseNode("type_declaration_list");
529 | type_declarations:tds type_declaration:td {:
535 //package_declaration ::=
536 // PACKAGE name SEMICOLON
538 //import_declaration ::=
539 // single_type_import_declaration
540 // | type_import_on_demand_declaration
542 //single_type_import_declaration ::=
543 // IMPORT name SEMICOLON
545 //type_import_on_demand_declaration ::=
546 // IMPORT name DOT MULT SEMICOLON
554 | task_declaration:td
558 // | interface_declaration
559 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
562 // 19.7) Productions used only in the LALR(1) grammar
564 {: RESULT=new ParseNode("empty"); :}
569 modifiers ::= modifier:mo {:
570 ParseNode pn=new ParseNode("modifier_list");
574 | modifiers:mos modifier:mo {:
580 PUBLIC {: RESULT=new ParseNode("public"); :}|
581 PROTECTED {: RESULT=new ParseNode("protected"); :}|
582 PRIVATE {: RESULT=new ParseNode("private"); :}|
583 STATIC {: RESULT=new ParseNode("static"); :} |
585 FINAL {: RESULT=new ParseNode("final"); :}|
586 NATIVE {: RESULT=new ParseNode("native"); :}
590 // STRICTFP // note that semantic analysis must check that the
591 // context of the modifier allows strictfp.
596 // 19.8.1) Class Declaration:
597 class_declaration ::=
598 modifiers_opt:mo CLASS IDENTIFIER:id super_opt:so //interfaces_opt
601 ParseNode pn=new ParseNode("class_declaration");
602 pn.addChild("modifiers").addChild(mo);
603 pn.addChild("name").addChild(id);
604 pn.addChild("super").addChild(so);
605 pn.addChild("classbody").addChild(body);
609 super ::= EXTENDS class_type:classtype {:
614 {: RESULT=new ParseNode("empty"); :}
620 //interfaces ::= IMPLEMENTS interface_type_list
625 //interface_type_list ::=
627 // | interface_type_list COMMA interface_type
630 class_body ::= LBRACE class_body_declarations_opt:cbdo RBRACE {: RESULT=cbdo; :}
633 class_body_declarations_opt ::=
634 {: RESULT=new ParseNode("empty"); :}
635 | class_body_declarations:cbd {: RESULT=cbd; :};
637 class_body_declarations ::=
638 class_body_declaration:cbd {:
639 ParseNode pn=new ParseNode("class_body_declaration_list");
643 | class_body_declarations:cbds class_body_declaration:cbd {:
649 class_body_declaration ::=
650 class_member_declaration:member {:
651 RESULT=(new ParseNode("member")).addChild(member).getRoot();
653 // | static_initializer
654 | constructor_declaration:constructor {:
655 RESULT=(new ParseNode("constructor")).addChild(constructor).getRoot();
658 RESULT=(new ParseNode("block")).addChild(block).getRoot();
661 class_member_declaration ::=
662 //failure aware computation
663 flag_declaration:flag {:
664 RESULT=(new ParseNode("flag")).addChild(flag).getRoot();
667 field_declaration:field {:
668 RESULT=(new ParseNode("field")).addChild(field).getRoot();
670 | method_declaration:method {:
671 RESULT=(new ParseNode("method")).addChild(method).getRoot();
673 /* repeat the prod for 'class_declaration' here: */
674 // | modifiers_opt CLASS IDENTIFIER super_opt class_body
675 // | interface_declaration
676 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
679 //Failure aware computation
681 FLAG IDENTIFIER:id SEMICOLON {:
682 ParseNode pn=new ParseNode("flag_declaration");
683 pn.addChild("name").addChild(id);
688 // 19.8.2) Field Declarations
689 field_declaration ::=
690 modifiers_opt:mo type:type variable_declarators:var SEMICOLON {:
691 ParseNode pn=new ParseNode("field_declaration");
692 pn.addChild("modifier").addChild(mo);
693 pn.addChild("type").addChild(type);
694 pn.addChild("variables").addChild(var);
699 variable_declarators ::=
700 variable_declarator:vd {:
701 ParseNode pn=new ParseNode("variable_declarators_list");
705 | variable_declarators:vds COMMA variable_declarator:vd {:
710 variable_declarator ::=
711 variable_declarator_id:id {:
712 ParseNode pn=new ParseNode("variable_declarator");
716 | variable_declarator_id:id EQ variable_initializer:init {:
717 ParseNode pn=new ParseNode("variable_declarator");
719 pn.addChild("initializer").addChild(init);
723 variable_declarator_id ::=
725 RESULT=(new ParseNode("single")).addChild(id).getRoot();:}
726 | variable_declarator_id:id LBRACK RBRACK {:
727 RESULT=(new ParseNode("array")).addChild(id).getRoot();:}
729 variable_initializer ::=
730 expression:exp {: RESULT=exp; :}
731 // | array_initializer
734 // 19.8.3) Method Declarations
735 method_declaration ::=
736 method_header:header method_body:body {:
737 ParseNode pn=new ParseNode("method_declaration");
739 pn.addChild("body").addChild(body);
744 modifiers_opt:mo type:type method_declarator:decl //throws_opt
746 ParseNode pn=new ParseNode("method_header");
747 pn.addChild("modifiers").addChild(mo);
748 pn.addChild("returntype").addChild(type);
752 | modifiers_opt:mo VOID method_declarator:decl //throws_opt
754 ParseNode pn=new ParseNode("method_header");
755 pn.addChild("modifiers").addChild(mo);
760 method_declarator ::=
761 IDENTIFIER:id LPAREN formal_parameter_list_opt:params RPAREN {:
762 ParseNode pn=new ParseNode("method_declarator");
763 pn.addChild("name").addChild(id);
764 pn.addChild("parameters").addChild(params);
767 // | method_declarator LBRACK RBRACK // deprecated
768 // be careful; the above production also allows 'void foo() []'
770 formal_parameter_list_opt ::=
771 {: RESULT=new ParseNode("empty"); :}
772 | formal_parameter_list:fpl {:
776 formal_parameter_list ::=
777 formal_parameter:fp {:
778 ParseNode pn=new ParseNode("formal_parameter_list");
782 | formal_parameter_list:fpl COMMA formal_parameter:fp {:
788 type:type variable_declarator_id:name {:
789 ParseNode pn=new ParseNode("formal_parameter");
794 // | FINAL type variable_declarator_id
799 //throws ::= THROWS class_type_list
801 //class_type_list ::=
803 // | class_type_list COMMA class_type
805 method_body ::= block:block {:
808 | SEMICOLON {: RESULT=new ParseNode("empty"); :}
811 // 19.8.4) Static Initializers
812 //static_initializer ::=
816 // 19.8.5) Constructor Declarations
817 constructor_declaration ::=
818 modifiers_opt:mo constructor_declarator:cd
820 constructor_body:body {:
821 ParseNode pn=new ParseNode("constructor_declaration");
822 pn.addChild("modifiers").addChild(mo);
824 pn.addChild("body").addChild(body);
828 constructor_declarator ::=
829 simple_name:name LPAREN formal_parameter_list_opt:fplo RPAREN {:
830 ParseNode pn=new ParseNode("constructor_declarator");
832 pn.addChild("parameters").addChild(fplo);
837 // LBRACE explicit_constructor_invocation:eci block_statements:bs RBRACE |
838 // LBRACE explicit_constructor_invocation RBRACE |
839 LBRACE block_statements:block RBRACE {:
840 ParseNode pn=new ParseNode("constructor_body");
844 | LBRACE RBRACE {: RESULT=new ParseNode("empty"); :}
846 //explicit_constructor_invocation ::=
847 // THIS LPAREN argument_list_opt RPAREN SEMICOLON
848 // | SUPER LPAREN argument_list_opt RPAREN SEMICOLON
849 // | primary DOT THIS LPAREN argument_list_opt RPAREN SEMICOLON
850 // | primary DOT SUPER LPAREN argument_list_opt RPAREN SEMICOLON
855 // 19.9.1) Interface Declarations
856 //interface_declaration ::=
857 // modifiers_opt INTERFACE IDENTIFIER extends_interfaces_opt
860 //extends_interfaces_opt ::=
861 // | extends_interfaces
863 //extends_interfaces ::=
864 // EXTENDS interface_type
865 // | extends_interfaces COMMA interface_type
868 // LBRACE interface_member_declarations_opt RBRACE
870 //interface_member_declarations_opt ::=
871 // | interface_member_declarations
873 //interface_member_declarations ::=
874 // interface_member_declaration
875 // | interface_member_declarations interface_member_declaration
877 //interface_member_declaration ::=
878 // constant_declaration
879 // | abstract_method_declaration
880 // | class_declaration
881 // | interface_declaration
884 //constant_declaration ::=
886 // // need to semantically check that modifiers of field declaration
887 // // include only PUBLIC, STATIC, or FINAL. Other modifiers are
890 //abstract_method_declaration ::=
891 // method_header SEMICOLON
896 //array_initializer ::=
897 // LBRACE variable_initializers COMMA RBRACE
898 // | LBRACE variable_initializers RBRACE
899 // | LBRACE COMMA RBRACE
902 //variable_initializers ::=
903 // variable_initializer
904 // | variable_initializers COMMA variable_initializer
907 // 19.11) Blocks and Statements
908 block ::= LBRACE block_statements_opt:bso RBRACE {:
912 block_statements_opt ::=
913 {: RESULT=new ParseNode("empty"); :}
914 | block_statements:bs {:
919 block_statement:bs {:
920 ParseNode pn=new ParseNode("block_statement_list");
924 | block_statements:bss block_statement:bs {:
930 local_variable_declaration_statement:lvds {:
933 | statement:statement {:
936 // | class_declaration
937 // | interface_declaration
939 local_variable_declaration_statement ::=
940 local_variable_declaration:lvd SEMICOLON {:
944 local_variable_declaration ::=
945 type:type variable_declarators:var {:
946 ParseNode pn=new ParseNode("local_variable_declaration");
951 // | FINAL type variable_declarators
953 statement ::= statement_without_trailing_substatement:st {:
956 // | labeled_statement:st {: RESULT=st; :}
957 | if_then_statement:st {: RESULT=st; :}
958 | if_then_else_statement:st {: RESULT=st; :}
959 | while_statement:st {: RESULT=st; :}
960 | for_statement:st {: RESULT=st; :}
962 statement_no_short_if ::=
963 statement_without_trailing_substatement:st {: RESULT=st; :}
964 // | labeled_statement_no_short_if:st {: RESULT=st; :}
965 | if_then_else_statement_no_short_if:st {: RESULT=st; :}
966 | while_statement_no_short_if:st {: RESULT=st; :}
967 | for_statement_no_short_if:st {: RESULT=st; :}
969 statement_without_trailing_substatement ::=
970 block:st {: RESULT=st; :}
971 | empty_statement:st {: RESULT=st; :}
972 | expression_statement:st {: RESULT=st; :}
973 // | switch_statement
974 | do_statement:dos {:RESULT=dos; :}
975 | break_statement:st {: RESULT=st; :}
976 | continue_statement:st {: RESULT=st; :}
977 | return_statement:st {: RESULT=st; :}
978 | task_exitstatement:st {: RESULT=st; :}
979 // | synchronized_statement
982 // | assert_statement
985 SEMICOLON {: RESULT=new ParseNode("nop"); :}
987 //labeled_statement ::=
988 // IDENTIFIER COLON statement
990 //labeled_statement_no_short_if ::=
991 // IDENTIFIER COLON statement_no_short_if
993 expression_statement ::=
994 statement_expression:se SEMICOLON {:
995 ParseNode pn=new ParseNode("expression");
999 statement_expression ::=
1000 assignment:st {: RESULT=st; :}
1001 | preincrement_expression:st {: RESULT=st; :}
1002 | predecrement_expression:st {: RESULT=st; :}
1003 | postincrement_expression:st {: RESULT=st; :}
1004 | postdecrement_expression:st {: RESULT=st; :}
1005 | method_invocation:st {: RESULT=st; :}
1006 | class_instance_creation_expression:st {: RESULT=st; :}
1008 if_then_statement ::=
1009 IF LPAREN expression:exp RPAREN statement:st {:
1010 ParseNode pn=new ParseNode("ifstatement");
1011 pn.addChild("condition").addChild(exp);
1012 pn.addChild("statement").addChild(st);
1016 if_then_else_statement ::=
1017 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1018 ELSE statement:else_st {:
1019 ParseNode pn=new ParseNode("ifstatement");
1020 pn.addChild("condition").addChild(exp);
1021 pn.addChild("statement").addChild(st);
1022 pn.addChild("else_statement").addChild(else_st);
1026 if_then_else_statement_no_short_if ::=
1027 IF LPAREN expression:exp RPAREN statement_no_short_if:st
1028 ELSE statement_no_short_if:else_st {:
1029 ParseNode pn=new ParseNode("ifstatement");
1030 pn.addChild("condition").addChild(exp);
1031 pn.addChild("statement").addChild(st);
1032 pn.addChild("else_statement").addChild(else_st);
1036 //switch_statement ::=
1037 // SWITCH LPAREN expression RPAREN switch_block
1040 // LBRACE switch_block_statement_groups switch_labels RBRACE
1041 // | LBRACE switch_block_statement_groups RBRACE
1042 // | LBRACE switch_labels RBRACE
1045 //switch_block_statement_groups ::=
1046 // switch_block_statement_group
1047 // | switch_block_statement_groups switch_block_statement_group
1049 //switch_block_statement_group ::=
1050 // switch_labels block_statements
1054 // | switch_labels switch_label
1057 // CASE constant_expression COLON
1062 WHILE LPAREN expression:exp RPAREN statement:st {:
1063 ParseNode pn=new ParseNode("whilestatement");
1064 pn.addChild("condition").addChild(exp);
1065 pn.addChild("statement").addChild(st);
1069 while_statement_no_short_if ::=
1070 WHILE LPAREN expression:exp RPAREN statement_no_short_if:st {:
1071 ParseNode pn=new ParseNode("whilestatement");
1072 pn.addChild("condition").addChild(exp);
1073 pn.addChild("statement").addChild(st);
1078 DO statement:st WHILE LPAREN expression:exp RPAREN SEMICOLON {:
1079 ParseNode pn=new ParseNode("dowhilestatement");
1080 pn.addChild("condition").addChild(exp);
1081 pn.addChild("statement").addChild(st);
1086 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1087 for_update_opt:update RPAREN statement:st {:
1088 ParseNode pn=new ParseNode("forstatement");
1089 pn.addChild("initializer").addChild(init);
1090 pn.addChild("condition").addChild(exp);
1091 pn.addChild("update").addChild(update);
1092 pn.addChild("statement").addChild(st);
1096 for_statement_no_short_if ::=
1097 FOR LPAREN for_init_opt:init SEMICOLON expression_opt:exp SEMICOLON
1098 for_update_opt:update RPAREN statement_no_short_if:st {:
1099 ParseNode pn=new ParseNode("forstatement");
1100 pn.addChild("initializer").addChild(init);
1101 pn.addChild("condition").addChild(exp);
1102 pn.addChild("update").addChild(update);
1103 pn.addChild("statement").addChild(st);
1108 {: RESULT=new ParseNode("empty"); :}
1109 | for_init:init {: RESULT=init; :}
1111 for_init ::= statement_expression_list:list {: RESULT=list; :}
1112 | local_variable_declaration:decl {: RESULT=decl; :}
1115 {: RESULT=new ParseNode("empty"); :}
1116 | for_update:update {: RESULT=update; :}
1118 for_update ::= statement_expression_list:list {: RESULT=list; :}
1120 statement_expression_list ::=
1121 statement_expression:expr {:
1122 RESULT=(new ParseNode("statement_expression_list")).addChild(expr).getRoot();
1124 | statement_expression_list:list COMMA statement_expression:expr {:
1125 list.addChild(expr);
1130 //identifier_opt ::=
1137 SEMICOLON {: RESULT=new ParseNode("break"); :}
1140 continue_statement ::=
1144 {: RESULT=new ParseNode("continue"); :}
1146 return_statement ::=
1147 RETURN expression_opt:exp SEMICOLON {:
1148 RESULT=(new ParseNode("return")).addChild(exp).getRoot(); :}
1150 //throw_statement ::=
1151 // THROW expression SEMICOLON
1153 //synchronized_statement ::=
1154 // SYNCHRONIZED LPAREN expression RPAREN block
1157 // TRY block catches
1158 // | TRY block catches_opt finally
1163 //catches ::= catch_clause
1164 // | catches catch_clause
1167 // CATCH LPAREN formal_parameter RPAREN block
1169 //finally ::= FINALLY block
1171 //assert_statement ::=
1172 // ASSERT expression SEMICOLON
1173 // | ASSERT expression COLON expression SEMICOLON
1176 // 19.12) Expressions
1177 primary ::= primary_no_new_array:st {:
1179 // | array_creation_init:st {:
1182 | array_creation_uninit:st {:
1186 primary_no_new_array ::=
1187 literal:lit {: RESULT=lit; :}
1188 | THIS {: RESULT=new ParseNode("this"); :}
1189 | LPAREN expression:exp RPAREN {: RESULT=exp; :}
1190 | class_instance_creation_expression:exp {: RESULT=exp; :}
1191 | field_access:exp {: RESULT=exp; :}
1192 | method_invocation:exp {: RESULT=exp; :}
1193 | array_access:exp {: RESULT=exp; :}
1194 // | primitive_type DOT CLASS
1196 // | array_type DOT CLASS
1200 class_instance_creation_expression ::=
1201 NEW class_or_interface_type:type LPAREN argument_list_opt:args RPAREN flag_list_opt:feo {:
1202 ParseNode pn=new ParseNode("createobject");
1208 // | NEW class_or_interface_type LPAREN argument_list_opt RPAREN class_body
1209 // | primary DOT NEW IDENTIFIER
1210 // LPAREN argument_list_opt RPAREN {:
1213 // | primary DOT NEW IDENTIFIER
1214 // LPAREN argument_list_opt RPAREN class_body
1215 // | name DOT NEW IDENTIFIER
1216 // LPAREN argument_list_opt RPAREN
1217 // | name DOT NEW IDENTIFIER
1218 // LPAREN argument_list_opt RPAREN class_body
1220 argument_list_opt ::=
1221 {: RESULT=new ParseNode("empty"); :}
1222 | argument_list:args {: RESULT=args; :}
1226 ParseNode pn=new ParseNode("argument_list");
1230 | argument_list:list COMMA expression:exp {:
1235 array_creation_uninit ::=
1236 NEW primitive_type:type dim_exprs:dimexpr dims_opt:dims {:
1237 ParseNode pn=new ParseNode("createarray");
1239 pn.addChild(dimexpr);
1240 pn.addChild("dims_opt").setLiteral(dims);
1243 | NEW class_or_interface_type:type dim_exprs:dimexpr dims_opt:dims {:
1244 ParseNode pn=new ParseNode("createarray");
1246 pn.addChild(dimexpr);
1247 pn.addChild("dims_opt").setLiteral(dims);
1251 //array_creation_init ::=
1252 // NEW primitive_type dims array_initializer
1253 // | NEW class_or_interface_type dims array_initializer
1255 dim_exprs ::= dim_expr:exp {:
1256 ParseNode pn=new ParseNode("dim_exprs");
1259 | dim_exprs:base dim_expr:exp {:
1264 dim_expr ::= LBRACK expression:exp RBRACK {: RESULT=exp; :}
1266 dims_opt ::= {: RESULT=new Integer(0); :}
1267 | dims:dims {: RESULT = dims; :}
1270 dims ::= LBRACK RBRACK {: RESULT=new Integer(1); :}
1271 | dims:dims LBRACK RBRACK {: RESULT=new Integer(dims.intValue()+1); :}
1275 primary:base DOT IDENTIFIER:id {:
1276 ParseNode pn=new ParseNode("fieldaccess");
1277 pn.addChild("base").addChild(base);
1278 pn.addChild("field").addChild(id);
1281 // | SUPER DOT IDENTIFIER
1282 // | name DOT SUPER DOT IDENTIFIER
1284 method_invocation ::=
1285 name:name LPAREN argument_list_opt:args RPAREN {:
1286 ParseNode pn=new ParseNode("methodinvoke1");
1291 | primary:base DOT IDENTIFIER:name LPAREN argument_list_opt:args RPAREN {:
1292 ParseNode pn=new ParseNode("methodinvoke2");
1293 pn.addChild("base").addChild(base);
1294 pn.addChild("id").addChild(name);
1298 // | SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1299 // | name DOT SUPER DOT IDENTIFIER LPAREN argument_list_opt RPAREN
1302 name:name LBRACK expression:exp RBRACK {:
1303 ParseNode pn=new ParseNode("arrayaccess");
1304 pn.addChild("base").addChild(name);
1305 pn.addChild("index").addChild(exp);
1308 | primary_no_new_array:base LBRACK expression:exp RBRACK {:
1309 ParseNode pn=new ParseNode("arrayaccess");
1310 pn.addChild("base").addChild(base);
1311 pn.addChild("index").addChild(exp);
1314 // | array_creation_init:init LBRACK expression:exp RBRACK {:
1315 // ParseNode pn=new ParseNode("arrayaccess");
1316 // pn.addChild("init").addChild(init);
1317 // pn.addChild("index").addChild(exp);
1321 postfix_expression ::=
1324 | name:exp {: RESULT=exp; :}
1325 | postincrement_expression:exp {: RESULT=exp; :}
1326 | postdecrement_expression:exp {: RESULT=exp; :}
1328 postincrement_expression ::=
1329 postfix_expression:exp PLUSPLUS
1330 {: RESULT=(new ParseNode("postinc")).addChild(exp).getRoot(); :}
1332 postdecrement_expression ::=
1333 postfix_expression:exp MINUSMINUS
1334 {: RESULT=(new ParseNode("postdec")).addChild(exp).getRoot(); :}
1336 unary_expression ::=
1337 preincrement_expression:exp {: RESULT=exp; :}
1338 | predecrement_expression:exp {: RESULT=exp; :}
1339 | PLUS unary_expression:exp
1340 {: RESULT=(new ParseNode("unaryplus")).addChild(exp).getRoot(); :}
1341 | MINUS unary_expression:exp
1342 {: RESULT=(new ParseNode("unaryminus")).addChild(exp).getRoot(); :}
1343 | unary_expression_not_plus_minus:exp {:
1346 preincrement_expression ::=
1347 PLUSPLUS unary_expression:exp
1348 {: RESULT=(new ParseNode("preinc")).addChild(exp).getRoot(); :}
1350 predecrement_expression ::=
1351 MINUSMINUS unary_expression:exp
1352 {: RESULT=(new ParseNode("predec")).addChild(exp).getRoot(); :}
1354 unary_expression_not_plus_minus ::=
1355 postfix_expression:exp {:
1357 // | COMP unary_expression
1358 | NOT unary_expression:exp
1359 {: RESULT=(new ParseNode("not")).addChild(exp).getRoot(); :}
1360 | cast_expression:exp {: RESULT=exp; :}
1363 LPAREN primitive_type:type
1365 RPAREN unary_expression:exp {:
1366 ParseNode pn=new ParseNode("cast1");
1367 pn.addChild("type").addChild(type);
1368 pn.addChild("exp").addChild(exp);
1371 | LPAREN expression:type RPAREN unary_expression_not_plus_minus:exp {:
1372 ParseNode pn=new ParseNode("cast2");
1373 pn.addChild("type").addChild(type);
1374 pn.addChild("exp").addChild(exp);
1378 // | LPAREN name dims RPAREN unary_expression_not_plus_minus
1380 multiplicative_expression ::=
1381 unary_expression:exp {:
1383 | multiplicative_expression:exp1 MULT unary_expression:exp2 {:
1384 ParseNode pn=new ParseNode("mult");
1389 | multiplicative_expression:exp1 DIV unary_expression:exp2 {:
1390 ParseNode pn=new ParseNode("div");
1395 | multiplicative_expression:exp1 MOD unary_expression:exp2 {:
1396 ParseNode pn=new ParseNode("mod");
1402 additive_expression ::=
1403 multiplicative_expression:exp {:
1405 | additive_expression:exp1 PLUS multiplicative_expression:exp2 {:
1406 ParseNode pn=new ParseNode("add");
1411 | additive_expression:exp1 MINUS multiplicative_expression:exp2 {:
1412 ParseNode pn=new ParseNode("sub");
1418 shift_expression ::=
1419 additive_expression:exp {:
1421 | shift_expression:exp1 LSHIFT additive_expression:exp2 {:
1422 ParseNode pn=new ParseNode("leftshift");
1427 | shift_expression:exp1 RSHIFT additive_expression:exp2 {:
1428 ParseNode pn=new ParseNode("rightshift");
1433 // | shift_expression URSHIFT additive_expression
1435 relational_expression ::=
1436 shift_expression:exp {:
1438 | relational_expression:exp1 LT shift_expression:exp2 {:
1439 ParseNode pn=new ParseNode("comp_lt");
1444 | relational_expression:exp1 GT shift_expression:exp2 {:
1445 ParseNode pn=new ParseNode("comp_gt");
1450 | relational_expression:exp1 LTEQ shift_expression:exp2 {:
1451 ParseNode pn=new ParseNode("comp_lte");
1456 | relational_expression:exp1 GTEQ shift_expression:exp2 {:
1457 ParseNode pn=new ParseNode("comp_gte");
1462 // | relational_expression INSTANCEOF reference_type
1465 equality_expression ::=
1466 relational_expression:exp {:
1468 | equality_expression:exp1 EQEQ relational_expression:exp2 {:
1469 ParseNode pn=new ParseNode("equal");
1474 | equality_expression:exp1 NOTEQ relational_expression:exp2 {:
1475 ParseNode pn=new ParseNode("not_equal");
1482 equality_expression:exp {:
1484 | and_expression:exp1 AND equality_expression:exp2 {:
1485 ParseNode pn=new ParseNode("bitwise_and");
1491 exclusive_or_expression ::=
1492 and_expression:expr {:
1495 | exclusive_or_expression:exp1 XOR and_expression:exp2 {:
1496 ParseNode pn=new ParseNode("bitwise_xor");
1502 inclusive_or_expression ::=
1503 exclusive_or_expression:exclor {:
1505 | inclusive_or_expression:exp1 OR exclusive_or_expression:exp2 {:
1506 ParseNode pn=new ParseNode("bitwise_or");
1512 conditional_and_expression ::=
1513 inclusive_or_expression:inclor {:
1515 | conditional_and_expression:exp1 ANDAND inclusive_or_expression:exp2 {:
1516 ParseNode pn=new ParseNode("logical_and");
1522 conditional_or_expression ::=
1523 conditional_and_expression:condand {:
1525 | conditional_or_expression:exp1 OROR conditional_and_expression:exp2 {:
1526 ParseNode pn=new ParseNode("logical_or");
1532 conditional_expression ::=
1533 conditional_or_expression:condor {:
1535 // | conditional_or_expression QUESTION expression
1536 // COLON conditional_expression
1538 assignment_expression ::=
1539 conditional_expression:expr {:
1541 assignment:assign {:
1544 // semantic check necessary here to ensure a valid left-hand side.
1545 // allowing a parenthesized variable here on the lhs was introduced in
1546 // JLS 2; thanks to Eric Blake for pointing this out.
1547 assignment ::= postfix_expression:lvalue assignment_operator:op assignment_expression:rvalue {:
1548 ParseNode pn=new ParseNode("assignment");
1549 pn.addChild("op").addChild(op);
1550 ParseNode pnargs=pn.addChild("args");
1551 pnargs.addChild(lvalue);
1552 pnargs.addChild(rvalue);
1556 assignment_operator ::=
1557 EQ {: RESULT=new ParseNode("eq"); :}
1558 | MULTEQ {: RESULT=new ParseNode("multeq"); :}
1559 | DIVEQ {: RESULT=new ParseNode("diveq"); :}
1560 | MODEQ {: RESULT=new ParseNode("modeq"); :}
1561 | PLUSEQ {: RESULT=new ParseNode("pluseq"); :}
1562 | MINUSEQ {: RESULT=new ParseNode("minuseq"); :}
1563 | LSHIFTEQ {: RESULT=new ParseNode("lshifteq"); :}
1564 | RSHIFTEQ {: RESULT=new ParseNode("rshifteq"); :}
1565 // | URSHIFTEQ {: RESULT=new ParseNode("urshifteq"); :}
1566 | ANDEQ {: RESULT=new ParseNode("andeq"); :}
1567 | XOREQ {: RESULT=new ParseNode("xoreq"); :}
1568 | OREQ {: RESULT=new ParseNode("oreq"); :}
1571 {: RESULT=new ParseNode("empty"); :}
1575 expression ::= assignment_expression:exp {:
1578 //constant_expression ::=