netscape-ecma-v4.y

sswf-1.7.4-src.zip 源码

%{	/* asc.y -- written by Alexis WILKE for Made to Order Software, Ltd. (c) 2005-2006 */
	/* grammar parser for SSWF Action Scripts */

/*

Copyright (c) 2005-2006 Made to Order Software, Ltd.

Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and
associated documentation files (the "Software"), to
deal in the Software without restriction, including
without limitation the rights to use, copy, modify,
merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom
the Software is furnished to do so, subject to the
following conditions:

The above copyright notice and this permission notice
shall be included in all copies or substantial
portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

*/


#include	"sswf.h"

#define	YYPARSE_PARAM		result
static	void			yyerror(const char *msg);



%}



%union
{
	struct node_t		*node;
	int			unused;
};


/* terminals */

%token	<node>		AS
%token	<node>		ASSIGNMENT		// = := *= /= %= += -= <<= >>= >>>= &= ^= |= &&= ^^= ||=
%token	<node>		BREAK
%token	<node>		CASE
%token	<node>		CATCH
%token	<node>		CLASS
%token	<node>		CONST
%token	<node>		CONTINUE
%token	<node>		DECREMENT		// --
%token	<node>		DEFAULT
%token	<node>		DELETE
%token	<node>		DO
%token	<node>		ELIPSIS			// ...
%token	<node>		ELSE
%token	<node>		EQUAL			// ==
%token	<node>		EXTENDS
%token	<node>		FALSE
%token	<node>		FOR
%token	<node>		FINALLY
%token	<node>		FUNCTION
%token	<node>		GET
%token	<node>		GREATER_EQUAL		// >=
%token	<node>		IDENTIFIER
%token	<node>		IF
%token	<node>		IMPORT
%token	<node>		IN
%token	<node>		INCREMENT		// ++
%token	<node>		INSTANCEOF
%token	<node>		IS
%token	<node>		LOGICAL_AND		// &&
%token	<node>		LOGICAL_OR		// ||
%token	<node>		LOGICAL_XOR		// ^^
%token	<node>		NAMESPACE
%token	<node>		NEGATED_MIN_LONG
%token	<node>		NEW
%token	<node>		NOT_EQUAL		// != <> (?)
%token	<node>		NULL_LITERAL		// null
%token	<node>		NUMBER
%token	<node>		LESS_EQUAL		// <=
%token	<node>		PACKAGE
%token	<node>		PRIVATE
%token	<node>		PUBLIC
%token	<node>		REGULAR_EXPRESSION	// /<expr>/<flags>
%token	<node>		RETURN
%token	<node>		SCOPE			// ::
%token	<node>		SET
%token	<node>		SHIFT_LEFT		// <<
%token	<node>		SHIFT_RIGHT		// >>
%token	<node>		SHIFT_RIGHT_UNSIGNED	// >>>
%token	<node>		STRICTLY_EQUAL		// ===
%token	<node>		STRICTLY_NOT_EQUAL	// !==
%token	<node>		STRING
%token	<node>		SUPER
%token	<node>		SWITCH
%token	<node>		THIS
%token	<node>		THROW
%token	<node>		TRUE
%token	<node>		TRY
%token	<node>		TYPEOF
%token	<node>		USE
%token	<node>		VAR
%token	<node>		VOID
%token	<node>		WITH
%token	<node>		WHILE



/* all these yacc expressions are nodes */




%%

start:
	   program
	   {
	   }
;



identifier:
	   IDENTIFIER
	   {
	   }
	|  GET
	   {
	   }
	|  SET
	   {
	   }
;


simple_qualified_identifier:
	   identifier
	   {
	   }
	|  identifier SCOPE identifier
	   {
	   }
	|  reserved_namespace SCOPE identifier
	   {
	   }
;


expression_qualified_identifier:
	   paren_expression SCOPE identifier
	   {
	   }
;


qualified_identifier:
	   simple_qualified_identifier
	   {
	   }
	|  expression_qualified_identifier
	   {
	   }
;


primary_expression:
	   NULL_LITERAL
	   {
	   }
	|  TRUE
	   {
	   }
	|  FALSE
	   {
	   }
	|  NUMBER
	   {
	   }
	|  STRING
	   {
	   }
	|  THIS
	   {
	   }
	|  REGULAR_EXPRESSION
	   {
	   }
	|  reserved_namespace
	   {
	   }
	|  paren_list_expression
	   {
	   }
	|  array_literal
	   {
	   }
	|  object_literal
	   {
	   }
	|  function_expression
	   {
	   }
;


reserved_namespace:
	   PUBLIC
	   {
	   }
	|  PRIVATE
	   {
	   }
;


paren_expression:
	   '(' assignment_expression ')'
	   {
	   }
;



paren_list_expression:
	   paren_expression
	   {
	   }
	|  '(' list_expression ',' assignment_expression ')'
	   {
	   }
;



function_expression:
	   FUNCTION function_common
	   {
	   }
	|  FUNCTION IDENTIFIER function_common
	   {
	   }
;


object_literal:
	   '{' field_list '}'
	   {
	   }
;




field_list:
	   /* EMPTY */
	   {
	   }
	|  nonempty_field_list
	   {
	   }
;


nonempty_field_list:
	   literal_field
	   {
	   }
	|  literal_field ',' nonempty_field_list
	   {
	   }
;


literal_field:
	   field_name ':' assignment_expression
	   {
	   }
;


field_name:
	   qualified_identifier
	   {
	   }
	|  STRING
	   {
	   }
	|  NUMBER
	   {
	   }
	|  paren_expression
	   {
	   }
;



array_literal:
	   '[' element_list ']'
	   {
	   }
;


element_list:
	   /* EMPTY */
	   {
	   }
	|  literal_element
	   {
	   }
	|  ',' element_list
	   {
	   }
	|  literal_element ',' element_list
	   {
	   }
;



literal_element:
	   assignment_expression
	   {
	   }
;



super_expression:
	   SUPER
	   {
	   }
	|  SUPER paren_expression
	   {
	   }
;


postfix_expression:
	   attribute_expression
	   {
	   }
	|  full_postfix_expression
	   {
	   }
	|  short_new_expression
	   {
	   }
;


attribute_expression:
	   simple_qualified_identifier
	   {
	   }
	|  attribute_expression property_operator
	   {
	   }
	|  attribute_expression arguments
	   {
	   }
;


full_postfix_expression:
	   primary_expression
	   {
	   }
	|  expression_qualified_identifier
	   {
	   }
	|  full_new_expression
	   {
	   }
	|  full_postfix_expression property_operator
	   {
	   }
	|  super_expression property_operator
	   {
	   }
	|  full_postfix_expression arguments
	   {
	   }
	|  postfix_expression INCREMENT
	   {
	   }
	|  postfix_expression DECREMENT
	   {
	   }
;


full_new_expression:
	   NEW full_new_subexpression arguments
	   {
	   }
;


full_new_subexpression:
	   primary_expression
	   {
	   }
	|  qualified_identifier
	   {
	   }
	|  full_new_expression
	   {
	   }
	|  full_new_subexpression property_operator
	   {
	   }
	|  super_expression property_operator
	   {
	   }
;


short_new_expression:
	   NEW short_new_subexpression
	   {
	   }
;


short_new_subexpression:
	   full_new_subexpression
	   {
	   }
	|  short_new_expression
	   {
	   }
;




property_operator:
	   '.' qualified_identifier
	   {
	   }
	|  brackets
	   {
	   }
;


brackets:
	   '[' ']'
	   {
	   }
	|  '[' list_expression ']'
	   {
	   }
	|  '[' expressions_with_rest ']'
	   {
	   }
;


arguments:
	   '(' ')'
	   {
	   }
	|  paren_list_expression
	   {
	   }
	|  '(' expressions_with_rest ')'
	   {
	   }
;


expressions_with_rest:
	   rest_expression
	   {
	   }
	|  list_expression ',' rest_expression
	   {
	   }
;


rest_expression:
	   ELIPSIS assignment_expression
	   {
	   }
;



unary_expression:
	   postfix_expression
	   {
	   }
	|  DELETE postfix_expression
	   {
	   }
	|  VOID unary_expression
	   {
	   }
	|  TYPEOF unary_expression
	   {
	   }
	|  INCREMENT postfix_expression
	   {
	   }
	|  DECREMENT postfix_expression
	   {
	   }
	|  '+' unary_expression
	   {
	   }
	|  '-' unary_expression
	   {
	   }
	|  '-' NEGATED_MIN_LONG
	   {
	   }
	|  '~' unary_expression
	   {
	   }
	|  '!' unary_expression
	   {
	   }
;




multiplicative_expression:
	   unary_expression
	   {
	   }
	|  multiplicative_expression '*' unary_expression
	   {
	   }
	|  multiplicative_expression '/' unary_expression
	   {
	   }
	|  multiplicative_expression '%' unary_expression
	   {
	   }
;




additive_expression:
	   multiplicative_expression
	   {
	   }
	|  additive_expression '+' multiplicative_expression
	   {
	   }
	|  additive_expression '-' multiplicative_expression
	   {
	   }
;


shift_expression:
	   additive_expression
	   {
	   }
	|  shift_expression SHIFT_LEFT additive_expression
	   {
	   }
	|  shift_expression SHIFT_RIGHT additive_expression
	   {
	   }
	|  shift_expression SHIFT_RIGHT_UNSIGNED additive_expression
	   {
	   }
;



relational_expression:
	   shift_expression
	   {
	   }
	|  relational_expression '<' shift_expression
	   {
	   }
	|  relational_expression '>' shift_expression
	   {
	   }
	|  relational_expression LESS_EQUAL shift_expression
	   {
	   }
	|  relational_expression GREATER_EQUAL shift_expression
	   {
	   }
	|  relational_expression IS shift_expression
	   {
	   }
	|  relational_expression AS shift_expression
	   {
	   }
	|  relational_expression IN shift_expression
	   {
	   }
	|  relational_expression INSTANCEOF shift_expression
	   {
	   }
;



equality_expression:
	   relational_expression
	   {
	   }
	|  equality_expression EQUAL relational_expression
	   {
	   }
	|  equality_expression NOT_EQUAL relational_expression
	   {
	   }
	|  equality_expression STRICTLY_EQUAL relational_expression
	   {
	   }
	|  equality_expression STRICTLY_NOT_EQUAL relational_expression
	   {
	   }
;




bitwise_and_expression:
	   equality_expression
	   {
	   }
	|  bitwise_and_expression '&' equality_expression
	   {
	   }
;


bitwise_xor_expression:
	   bitwise_and_expression
	   {
	   }
	|  bitwise_xor_expression '^' bitwise_and_expression
	   {
	   }
;


bitwise_or_expression:
	   bitwise_xor_expression
	   {
	   }
	|  bitwise_or_expression '|' bitwise_xor_expression
	   {
	   }
;




logical_and_expression:
	   bitwise_or_expression
	   {
	   }
	|  logical_and_expression LOGICAL_AND bitwise_or_expression
	   {
	   }
;



logical_xor_expression:
	   logical_and_expression
	   {
	   }
	|  logical_xor_expression LOGICAL_XOR logical_and_expression
	   {
	   }
;



logical_or_expression:
	   logical_xor_expression
	   {
	   }
	|  logical_or_expression LOGICAL_OR logical_xor_expression
	   {
	   }
;



conditional_expression:
	   logical_or_expression
	   {
	   }
	|  logical_or_expression '?' assignment_expression ':' assignment_expression
	   {
	   }
;



non_assignment_expression:
	   logical_or_expression
	   {
	   }
	|  logical_or_expression '?' non_assignment_expression ':' non_assignment_expression
	   {
	   }
;





assignment_expression:
	   conditional_expression
	   {
	   }
	|  postfix_expression ASSIGNMENT assignment_expression
	   {
	   }
;


list_expression:
	   assignment_expression
	   {
	   }
	|  list_expression ',' assignment_expression
	   {
	   }
;


type_expression:
	   non_assignment_expression
	   {
	   }
;




statement:
	   expression_statement ';'
	   {
	   }
	|  super_statement ';'
	   {
	   }
	|  block
	   {
	   }
	|  labeled_statement
	   {
	   }
	|  if_statement
	   {
	   }
	|  switch_statement
	   {
	   }
	|  do_statement ';'
	   {
	   }
	|  while_statement
	   {
	   }
	|  for_statement
	   {
	   }
	|  with_statement
	   {
	   }