C++/スクリプト/言語仕様/式 のバックアップ(No.5)

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UnaryOperator:
   "+"
  | "-"
  | "!"
  | "~"
  | "@"  
 
PrefixOperator:
  "++"
  | "--"
 
NewExpression:
  "new" IdentPath FunctionCallExpression
 
PrimaryExpression:
  IdentPath
  | NewExpression
  | ConstantLiteral
  | "(" Expression ")"
 
IndexExpression:
  "[" Expression "]"
 
FunctionCallExpression:
  "(" SequenceExpression ")"
 
PostfixOperator:
  "++"
  | "--"
  | IndexExpression
  | FunctionCallExpression
 
PostfixExpression:
  PrimaryExpression (PostfixOperator)*
 
UnaryExpression:
  UnaryOperator CastExpression
  | (PrefixOperator)* PostfixExpression
 
CastExpression:
  ( "cast" "(" IdentPath ")" )* UnaryExpression
 
MultiplicativeOperator:
  "*"
  | "/"
  | "%"
 
MultiplicativeExpression:
  CastExpression (MultiplicativeOperator CastExpression)*
 
AdditiveOperator:
  "+"
  | "-"
 
AdditiveExpression:
  MultiplicativeExpression (AdditiveOperator MultiplicativeExpression)*
 
ShiftOperator:
  ">>"
  | "<<"
 
ShiftExpression:
  AdditiveExpression (ShiftOperator AdditiveExpression)*
 
RelationalOperator:
  ">"
  | "<"
  | "<="
  | ">="
 
RelationalExpression:
  ShiftExpression (RelationalOperator ShiftExpression)*
 
EqualityOperator:
  "=="
  | "!="
 
EqualityExpression:
  RelationalExpression (EqulityOperator RelationalExpression)*
 
BitwiseAndOperator:
  "&"
 
BitwiseAndExpression:
  EqualityExpression (BitwiseAndOperator EqualityExpression )* 
 
BitwiseXorOperator:
  "^"
 
BitwiseXorExpression:
  BitwiseAndExpression (BitwiseXorOperator BitwiseAndExpression)*
  
 
BitwiseOrOperator:
  "|"
 
BitwiseOrExpression:
  BitwiseXorExpression (BitwiseOrOperator BitwiseXorExpression)*
  
 
LogicalAndOperator:
  "&&"
 
LogicalAndExpression:
  BitwiseOrExpression (LogicalAndOperator BitwiseOrExpression)*
    
LogicalOrOperator:
  "||"
 
LogicalOrExpression:
  LogicalAndExpression (LogicalOrOperator LogicalAndExpression)*
  
ConditionalExpression:
  LogicalOrExpression ("?" ConditionalExpression ":" ConditionalExpression)*
 
AssignmentOperator:
  "="
  | "+="
  | "-="
  | "*="
  | "/="
  | "%="
  | ">>="
  | "<<="
  | "&="
  | "|="
  | "^="
 
AssignmentExpression:
  (VariableReference AssignmentOperator)* ConditionalExpression
 
Expression:
  AssignmentExpression
 
SequenceOperator:
  ","
 
SequenceExpression:
  AssignmentExpression (SequenceOperator AssignmentExpression)*