/* Titanium Parser $Id: parser.yy 1.63 Thu, 03 Oct 2002 08:30:49 -0700 bonachea $ */

/* With the exceptions noted below, the .val fields of terminal */
/* symbols are irrelevant and may be set to NULL by the lexer. */

				/* KEYWORDS */

%token<SimpTerminal> ABSTRACT
%token<SimpTerminal> BOOLEAN BREAK BROADCAST BYTE
%token<SimpTerminal> CASE CATCH CHAR CLASS CONTINUE
%token<SimpTerminal> DEFAULT DO DOUBLE
%token<SimpTerminal> _DOMAIN		/* Titanium */ 
%token<SimpTerminal> ELSE EXTENDS
%token<SimpTerminal> FINAL FINALLY FLOAT FOR FROM
%token<SimpTerminal> FOREACH		/* Titanium */ 
%token<SimpTerminal> IF IMPLEMENTS IMPORT INSTANCEOF INT INTERFACE
%token<SimpTerminal> IMMUTABLE IN INLINE /* Titanium */ 
%token<SimpTerminal> LOCAL		/* Titanium */ 
%token<SimpTerminal> LONG
%token<SimpTerminal> NATIVE NEW NULL_VAL
%token<SimpTerminal> OPERATOR OVERLAP	/* Titanium */
%token<SimpTerminal> _PACKAGE PRIVATE PROTECTED PUBLIC
%token<SimpTerminal> POLYSHARED NONSHARED /* Titanium */
%token<SimpTerminal> PARTITION POINT	/* Titanium */ 
%token<SimpTerminal> RECTDOMAIN		/* Titanium */ 
%token<SimpTerminal> RETURN
%token<SimpTerminal> SHORT STATIC SUPER SWITCH SYNCHRONIZED
%token<SimpTerminal> SINGLE SGLOBAL	/* Titanium */ 
%token<SimpTerminal> TEMPLATE		/* Titanium */
%token<SimpTerminal> THIS THROW THROWS TRANSIENT TRY
%token<SimpTerminal> VOID VOLATILE
%token<SimpTerminal> WHILE

    /* KEYWORDS RESERVED (ILLEGAL AS IDENTIFIERS) BUT NOT USED */

/* %token CONST GOTO */


		    /* IDENTIFIERS AND LITERALS */

%token<SimpTerminal> TRUE_LITERAL FALSE_LITERAL

%token<Terminal> IDENTIFIER
%token<Terminal> INT_LITERAL LONG_LITERAL
%token<Terminal> FLOAT_LITERAL DOUBLE_LITERAL
%token<CharTerminal> CHARACTER_LITERAL
%token<StrTerminal> STRING_LITERAL

			   /* SEPARATORS */

%token<SimpTerminal> '(' ')' '{' '}' '[' ']' ',' '.' ';'

			   /* OPERATORS */

%token<SimpTerminal> '=' '>' '<'  '!' '~' '?' ':'
%token<SimpTerminal> '+' '-' '*' '/' '&' '|' '^' '%'

%token<SimpTerminal> CAND	/* &&: conditional and */
%token<SimpTerminal> COR	/* ||: conditional or */

%token<SimpTerminal> EQ		/* == */
%token<SimpTerminal> NE		/* != */
%token<SimpTerminal> LE		/* <= */
%token<SimpTerminal> GE		/* >= */

%token<SimpTerminal> LSHIFTL	/* << */
%token<SimpTerminal> ASHIFTR	/* >> */
%token<SimpTerminal> LSHIFTR	/* >>> */

%token<SimpTerminal> PLUS_ASG	/* += */
%token<SimpTerminal> MINUS_ASG	/* -= */
%token<SimpTerminal> MULT_ASG	/* *= */
%token<SimpTerminal> DIV_ASG	/* /= */
%token<SimpTerminal> REM_ASG	/* %= */
%token<SimpTerminal> LSHIFTL_ASG	/* <<= */
%token<SimpTerminal> ASHIFTR_ASG	/* >>= */
%token<SimpTerminal> LSHIFTR_ASG	/* >>>= */
%token<SimpTerminal> AND_ASG	/* &= */
%token<SimpTerminal> XOR_ASG	/* ^= */
%token<SimpTerminal> OR_ASG	/* |= */

%token<SimpTerminal> PLUSPLUS	/* ++ */
%token<SimpTerminal> MINUSMINUS	/* -- */

%token<SimpTerminal> GUARDS     /* => */  /* Titanium */



			  /* PRECEDENCES */

/* LOWEST */

/* ']' resolves s/r conflict between op[]= and op[] = ... (we shift
   because the latter is illegal as operators cannot be field names) */
%right ELSE
%left BROADCAST ']'
%left '=' PLUS_ASG MINUS_ASG MULT_ASG DIV_ASG REM_ASG LSHIFTL_ASG LSHIFTR_ASG ASHIFTR_ASG AND_ASG OR_ASG XOR_ASG
%right '?' ':'
%left COR
%left CAND
%left '|'
%left '^'
%left '&'
%left EQ NE
%left '<' '>' LE GE INSTANCEOF
%left LSHIFTL LSHIFTR ASHIFTR
%left '+' '-'
%left '*' '/' '%'
%nonassoc PLUSPLUS MINUSMINUS

/* HIGHEST */


/* Artificial precedence rules:
/* The rule for '.' resolves conflicts with QualifiedNames, */
/* FieldAccesses, and MethodAccesses.  The result is that */
/* FieldAccesses and MethodAccesses that look syntactically like */
/* QualifiedNames are parsed as QualifiedNames (see the production for */
/* Name from QualifiedName).  The ambiguity must be resolved with */
/* static semantic information at a later stage. */  
/* The rule for ')' resolves conflicts between Casts and ComplexPrimaries. */

%right '.' ')' 

/* Artificial precedence rule to resolve conflicts with */
/* InterfaceModifiers and ClassModifiers */

%right ABSTRACT FINAL PUBLIC 

/* Artificial precedence rule to favour interpreting [ (id)id ] in
   ArrayName as [ Expression ] rather than [ Expression IDENTIFIER ]
 */
%left IDENTIFIER

%{
#include <cstdlib>
#include <stdarg.h>
#include "AST.h"
#include "config.h"
#include "errors.h"
#include "parse.h"
#include "tokens.h"

#define YYDEBUG 1

#ifdef HAVE_ALLOCA
# define YYSTACK_USE_ALLOCA 1
# if HAVE_ALLOCA_H
#  include <alloca.h>
# endif // HAVE_ALLOCA_H
#if defined(__GNUC__)
  #ifndef alloca
    #define alloca __builtin_alloca
  #endif
#else
  extern "C" char *alloca(size_t size); 
#endif
#endif // HAVE_ALLOCA

static void yyerror(const char* msg);

static TreeNode *newOperator(char *op, SourcePosn p);
/* Routines to check the validity of modifier flags.  Each routine */
/* takes a logical `or' of flag values and a source position to which */
/* to refer error messages. */
static void checkFieldModifiers (Common::Modifiers flags, SourcePosn posn);
static void checkConstantFieldModifiers (Common::Modifiers flags, 
					 SourcePosn posn);
static void checkMethodModifiers (Common::Modifiers flags, SourcePosn posn);
static void checkConstructorModifiers (Common::Modifiers flags, 
				       SourcePosn posn);
static void checkMethodSignatureModifiers (Common::Modifiers flags, 
				       	   SourcePosn posn);
static void checkInterfaceModifiers(Common::Modifiers flags, 
				    SourcePosn posn);
static TreeNode *addSynchronized(Common::Modifiers modifiers, TreeNode *body);
%}




%union {
    SimpTerminalInfo SimpTerminal;  	/* Terminal symbols with only position. */
    TerminalInfo Terminal;		/* Terminal symbols with ASCII string data. */
    StrTerminalInfo StrTerminal;	/* Terminal symbols with Unicode string data. */
    CharTerminalInfo CharTerminal;	/* Terminal symbols with Unicode char data. */
    long Int;				/* Simple integer values */
    bool Bool;
    CompileUnitNode* CompileUnit;
    TreeNode* Tree;
    TypeNode* Type;
    CatchNode* Catch;
    llist<TreeNode*>* TreeList;
    llist<TypeNode*>* TypeList;
    llist<CatchNode*>* CatchList;
    Common::Modifiers Modifiers;
    llist<DeclaratorTuple>* DeclaratorList;
    TryNode *Try;
    TypeDeclNode *TypeDecl;
}    


%type<CompileUnit> CompilationUnit

%type<Int> Dims DimsOpt
%type<Tree> ArrayName FullArrayName
%type<Tree> Literal PrimaryExpression NotJustName ComplexPrimary
%type<Tree> ArrayAccess IndexExpression MethodCall AllocationExpression
%type<Tree> PostfixExpression PostIncrement PostDecrement UnaryExpression
%type<Tree> PreIncrement PreDecrement RestrictedUnaryExpression
%type<Tree> CastExpression ExpressionOpt Expression Expression1 Assignment
%type<Tree> ConstantExpression DimExpr StatementExpression
%type<Tree> VariableInitializer ArrayInitializer Element RegionOpt
%type<Tree> NoNamePostfixExpression NoNameUnaryExpression
%type<Tree> OtherPostfixExpression
%type<Tree> NoNameRestrictedUnaryExpression NoNameExpression1
%type<Tree> OtherUnaryExpression
%type<Tree> BinaryExpression1
%type<Tree> OtherRestrictedPostfixExpression

%type<TreeList> ArgumentListOpt ArgumentList
%type<TreeList> DimExprs ElementInitializers

%type<Tree> FieldAccess 

%type<Type> QualifiedBaseType BaseType
%type<Type> TypeName
%type<Type> Type Void
%type<Type> NoNameType
%type<Type> OtherType
%type<Type> ComplexBaseType PrimitiveType TitaniumType
%type<Tree> SuperOpt ArraySpecifier
%type<TreeList> ArraySpecifiers

%type<Tree> TemplateDeclaration
%type<Type> TemplateInstance
%type<TreeList> TemplateFormalList
%type<Tree> TemplateFormal
%type<Tree> TemplateActual
%type<TreeList> TemplateActualList

%type<TypeList> TypeNameList InterfacesOpt ThrowsOpt Throws
%type<TypeList> ExtendsInterfacesOpt ExtendsInterfaces

%type<Tree> Block Statement
%type<Tree> EmptyStatement LabeledStatement 
%type<Tree> SelectionStatement IterationStatement JumpStatement
%type<Tree> GuardingStatement  MethodBody Finally
%type<Tree> ConstructorCallStatement ExplicitThisConstructorCallStatement
%type<Tree> ExplicitSuperConstructorCallStatement ExpressionStatement

%type<TreeList> BlockStatementsOpt BlockStatements BlockStatement SwitchBlock 
%type<TreeList> LocalVariableDeclarationStatement 
%type<TreeList> SwitchBlockStatementsOpt
%type<TreeList> ForInit ForUpdateOpt
%type<TreeList> StatementExpressionsOpt
%type<TreeList> StatementExpressions

%type<Modifiers> ClassModifiersOpt ClassModifiers ClassModifier
%type<Modifiers> FieldModifiersOpt FieldModifiers FieldModifier
%type<Modifiers> QualifiersOpt Qualifier

%type<TypeDecl> ClassDeclaration
%type<TypeDecl> InterfaceDeclaration
%type<TypeDecl> BasicTypeDeclaration
%type<Tree> TypeDeclaration

%type<Tree> ImportStatement TypeImportStatement 
%type<Tree> TypeImportOnDemandStatement
%type<Tree> Parameter
%type<Tree> MethodDeclaration StaticInitializer ConstructorDeclaration
%type<Tree> MethodSignatureDeclaration

%type<TreeList> ClassBody FieldDeclarationsOpt FieldDeclarations
%type<TreeList> FieldDeclaration FieldVariableDeclaration 
%type<TreeList> ConstantFieldDeclaration
%type<TreeList> TypeDeclarationsOpt 
%type<TreeList> ParameterListOpt ParameterList InterfaceBody
%type<TreeList> ImportStatementsOpt 
%type<TreeList> InterfaceMemberDeclaration InterfaceMemberDeclarationsOpt

%type<Tree> SwitchLabel
%type<TreeList> SwitchLabels

%type<Tree> SimpleName MethodName OperatorName LabelOpt
%type<Tree> PackageDeclarationOpt Name QualifiedName

%type<Catch> Catch
%type<CatchList> Catches
%type<Try> TryBlock

%type<DeclaratorList> VariableDeclarator VariableDeclarators

/* Titanium */
%type<Tree> PartitionStatement ForEachStatement
%type<Tree> PointLiteral DomainLiteral BroadcastExpression
%type<TreeList> ForEachClauses PartitionClauses
%type<TreeList> DomainPairs DomainTriples OverlapsOpt
%type<Tree> DomainPair DomainTriple OverlapDecl
%type<Bool> OptionalInline OptionalFinal
%start Start

%%

/* The following production passes the translated program to the later */
/* stages of the compiler for processing. */

Start :
	CompilationUnit   { compileAST ($1); }
	;

			  /* 1.7 LITERALS */

Literal :
	  INT_LITERAL		       
		{ $$ = new PrimitiveLitNode (intLiteral(*$1.val), $1.posn); }
	| LONG_LITERAL
		{ $$ = new PrimitiveLitNode (longLiteral(*$1.val), $1.posn); }
	| FLOAT_LITERAL
		{ $$ = new PrimitiveLitNode (floatLiteral(*$1.val), $1.posn); }
	| DOUBLE_LITERAL
		{ $$ = new PrimitiveLitNode (doubleLiteral(*$1.val), $1.posn); }
	| TRUE_LITERAL
		{ $$ = new PrimitiveLitNode (Literal(true), $1.posn); }
	| FALSE_LITERAL
		{ $$ = new PrimitiveLitNode (Literal(false), $1.posn); }
	| CHARACTER_LITERAL
		{ $$ = new PrimitiveLitNode (Literal($1.val), $1.posn); }
	| STRING_LITERAL
		{ $$ = new StringLitNode (*$1.val, $1.posn); }
	;


		      /* 2. TYPES AND VALUES */

Type :
	  ArrayName %prec ')' { $$ = $1->asType(); }
	| OtherType
	;

NoNameType :
	  OtherType
	;

OtherType :
	  ComplexBaseType QualifiersOpt { $$ = $1; $1->modifiers($2); }
	| ComplexBaseType QualifiersOpt ArraySpecifiers
		{ $1->modifiers($2);
		  $$ = arraySpecifiers2Type($3, $1); }
	;

QualifiedBaseType :
	  BaseType QualifiersOpt { $$ = $1; $$->modifiers($2); }
	;

BaseType :
	  PrimitiveType
	| TypeName
	| TitaniumType
	| TemplateInstance
	;

TypeName :
	  Name		%prec ')'
		{ $$ = new TypeNameNode ($1); }
	;

ComplexBaseType :
	  PrimitiveType
	| TitaniumType
	| TemplateInstance
	;

ArraySpecifiers :
	  ArraySpecifier { $$ = cons($1); }
	| ArraySpecifier ArraySpecifiers { $$ = cons($1, $2); }
	;

ArraySpecifier :
	  '[' ']' QualifiersOpt { $$ = new EmptyArrayNode($3, $1.posn); }
	| '[' IndexExpression ']' QualifiersOpt
		{ $$ = new ExpressionArrayNode($2, $4); }
	| '[' Expression IDENTIFIER ']' QualifiersOpt
		{ 
		  if (*$3.val != "d")
		    {
		      Error($3.posn) << "Unexpected identifier '" << *$3.val << "'" << endl;
		      $$ = new ExpressionArrayNode($2, $5);
		    }
		  else
		    $$ = new TitaniumArrayNode($2, $5);
		}
	;

QualifiersOpt :
	  /* empty */ { $$ = (Common::Modifiers)0; }
	| QualifiersOpt Qualifier
		{
		  $$ = (Common::Modifiers) ($1 | $2);
		  if (($1 & $2) != 0)
		      Error (lexerPosition()) << "repeated modifier" << endl;
	        }
	;

Qualifier :
	  SINGLE { $$ = TreeNode::Single; }
	| LOCAL { $$ = TreeNode::Local; }
	| NONSHARED { $$ = TreeNode::NonsharedQ; }
	| POLYSHARED { $$ = TreeNode::PolysharedQ; }
	;

PrimitiveType :
	  BOOLEAN
		{ $$ = new BoolTypeNode ($1.posn); }
	| CHAR
		{ $$ = new CharTypeNode ($1.posn); }
	| BYTE
		{ $$ = new ByteTypeNode ($1.posn); }
	| SHORT
		{ $$ = new ShortTypeNode ($1.posn); }
	| INT
		{ $$ = new IntTypeNode ($1.posn); }
	| FLOAT
		{ $$ = new FloatTypeNode ($1.posn); }
	| LONG
		{ $$ = new LongTypeNode ($1.posn); }
	| DOUBLE
		{ $$ = new DoubleTypeNode ($1.posn); }
	;

			/* Titanium */

TitaniumType :
	  POINT '<' Expression1 '>'		
    			{ $$ = new PointTypeNode($3); }
	| RECTDOMAIN '<' Expression1 '>'
    			{ $$ = new RectDomainTypeNode($3); }
	| _DOMAIN '<' Expression1 '>'
    			{ $$ = new DomainTypeNode($3); }
	;


		       /* 5. PROGRAM STRUCTURE */

/* Section 5.4 */

CompilationUnit :
	  PackageDeclarationOpt ImportStatementsOpt TypeDeclarationsOpt
		{ $$ = new CompileUnitNode (NULL, $1, $2, new TreeListNode($3), NULL); }
	;

PackageDeclarationOpt :
	  _PACKAGE Name ';'
		{ $$ = $2; }
	| /* empty */
		{ $$ = TreeNode::omitted; }
	;

ImportStatementsOpt :
	  /* empty */
		{ $$ = NULL; }
	| ImportStatementsOpt ImportStatement
		{ $$ = extend ($1, cons($2)); }
	;
/* Note: This definition appears to be missing from the 10/30/95 draft. */

TypeDeclarationsOpt :
	  /* empty */
		{ $$ = NULL; }
	| TypeDeclaration TypeDeclarationsOpt
		{
		  if ($1->absent())
		    $$ = $2;
		  else
		    $$ = cons (static_cast<TreeNode*>($1), $2);
		}
        | ';' TypeDeclarationsOpt
		{ $$ = $2; }
	;

TypeDeclaration :
	  BasicTypeDeclaration
		{ $$ = $1; }
	| TemplateDeclaration
		{ $$ = $1; }
	;

BasicTypeDeclaration :
	  ClassDeclaration
	  { $$ = $1; }
	| InterfaceDeclaration
	  { $$ = $1; }
	;


/* Section 5.7 */

ImportStatement :
	  TypeImportStatement
	| TypeImportOnDemandStatement
	;

TypeImportStatement :
	  IMPORT Name ';'
		{ $$ = new ImportNode ($2); }
	;
/* Note: I have combined PackageImportStatement and TypeImportStatement */
/* to avoid syntactic ambiguity.  Also,  the draft of 10/30/95 appears  */
/* to be missing a final ";" in the definition of */
/* PackageImportStatement. */

TypeImportOnDemandStatement :
	  IMPORT Name '.' '*' ';'
		{ $$ = new ImportOnDemandNode ($2); }
	;



	    /* 6. CLASS AND INTERFACE TYPE DECLARATIONS */


/* Section 6.1 */

ClassDeclaration :
	  ClassModifiersOpt CLASS SimpleName SuperOpt InterfacesOpt ClassBody
		{ $$ = new ClassDeclNode ($1, $3, $4, $5, $6, $2.posn); }
	;


/* Section 6.1.1 */

ClassModifiersOpt :
	  ClassModifiers
	| /* empty */
		{ $$ = (Common::Modifiers) 0; }
	;

ClassModifiers :
	  ClassModifier
	| ClassModifiers ClassModifier
		{ $$ = (Common::Modifiers) ($1 | $2); 
		  if (($1 & $2) != 0)
		      Error (lexerPosition()) << "repeated modifier" << endl;
	      }
	;


ClassModifier :
	  ABSTRACT
		{ $$ = TreeNode::Abstract; }
	| FINAL
		{ $$ = TreeNode::Final; }
	| PUBLIC
		{ $$ = TreeNode::Public; }
	| IMMUTABLE
		{ $$ = TreeNode::Immutable; }
	;


/* Section 6.1.2 */

SuperOpt :
	  EXTENDS Type
		{ $$ = $2; }
	| /* empty */
		{ $$ = TreeNode::omitted; }
	;


/* Section 6.1.3 */

InterfacesOpt :
	  IMPLEMENTS TypeNameList
		{ $$ = $2; }
	| /* empty */
		{ $$ = NULL; }
	;



/* Section 6.1.4 */

ClassBody :
	  '{' FieldDeclarationsOpt '}'
		{ $$ = cons (TreeNode::omitted, $2); }
	;

FieldDeclarationsOpt :
	  FieldDeclarations
	| /* empty */
		{ $$ = NULL; }
	;

FieldDeclarations :
	  FieldDeclaration
	| FieldDeclarations FieldDeclaration 
		{ $$ = extend ($1, $2); }
	;


/* Section 6.2 */

FieldDeclaration :
	  FieldVariableDeclaration
	| MethodDeclaration
		{ $$ = cons ($1); }
	| ConstructorDeclaration
		{ $$ = cons ($1); }
	| StaticInitializer
		{ $$ = cons ($1); }
	;


/* Section 6.3 */

FieldVariableDeclaration :
	  FieldModifiersOpt Type VariableDeclarators ';'
             { checkFieldModifiers ($1, $2->position());
	       $$ = NULL;
	       foreach (decl, llist<DeclaratorTuple>, *$3) {
		   $$ = cons (static_cast<TreeNode *>(new FieldDeclNode(makeArrayType($2, 
										      (*decl).dims),
									(*decl).name,
									$1,
									(*decl).initExpr)),
			      $$);
	       }
	       free_all ($3);
	   }
	;


/* Section 6.3.1, 6.4.1, 6.5.1 */
/* Note: The nonterminals ConstructorModifier, MethodModifier, and */
/* VariableModifer are consolidated here into FieldModifier to */ 
/* resolve the LALR(1) conflicts.  Must be distinguished in later */
/* sections of the compiler.  */

FieldModifiersOpt :
	  FieldModifiers
	| /* empty */
		{ $$ = (Common::Modifiers) 0; }
	;

FieldModifiers :
	  FieldModifier
	| FieldModifiers FieldModifier
		{ $$ = (Common::Modifiers) ($1 | $2);
		  if (($1 & $2) != 0)
		      Error (lexerPosition()) << "repeated modifier" << endl;
	      }
	;

FieldModifier :
          /* Applicable to methods, constructors, and variables (6.[345].1) */
	  PUBLIC
		{ $$ = TreeNode::Public; }
	| PROTECTED
		{ $$ = TreeNode::Protected; }
	| PRIVATE
		{ $$ = TreeNode::Private; }
	  /* Applicable to methods and variables (6.[34].1) */
	| STATIC
		{ $$ = TreeNode::Static; }
	| FINAL 
		{ $$ = TreeNode::Final; }
	| SINGLE				/* Titanium - obsolete */
		{ $$ = TreeNode::Sglobal; }
	| SGLOBAL				/* Titanium */
		{ $$ = TreeNode::Sglobal; }
	  /* Applicable to methods (6.4.1) */
	| ABSTRACT
		{ $$ = TreeNode::Abstract; }
	| NATIVE
		{ $$ = TreeNode::Native; }
	| SYNCHRONIZED
		{ $$ = TreeNode::Synchronized; }
	  /* Applicable to variables (6.3.1) */
	| TRANSIENT
		{ $$ = TreeNode::Transient; }
	| VOLATILE
		{ $$ = TreeNode::Volatile; }
	| LOCAL 
		{ $$ = TreeNode::Local; }
	| NONSHARED
		{ $$ = TreeNode::NonsharedQ; }
	| POLYSHARED
		{ $$ = TreeNode::PolysharedQ; }
	| INLINE
		{ $$ = TreeNode::Inline; }
	;


/* Section 6.3.2 */

/* This is built up backwards */
VariableDeclarators :
	  VariableDeclarator
	| VariableDeclarators ',' VariableDeclarator
		{ $$ = $3; $3->tail() = $1; }
	;

VariableDeclarator :
          SimpleName DimsOpt 
		{ $$ = cons(DeclaratorTuple($2, $1, TreeNode::omitted)); }
	| SimpleName DimsOpt '=' VariableInitializer
		{ $$ = cons(DeclaratorTuple($2, $1, $4)); }
	;


/* Section 6.3.3 */

VariableInitializer :
	  Expression
	| ArrayInitializer
	;

/* Section 6.4 */

MethodDeclaration :
	  FieldModifiersOpt Type MethodName '(' ParameterListOpt ')' DimsOpt
		ThrowsOpt OverlapsOpt MethodBody
	    { checkMethodModifiers($1, $3->position());
	    TreeNode *body = addSynchronized($1, $10);
	    $$ = new MethodDeclNode($1, $5, makeArrayType($2, $7), $3, $8, $9, body); 
	    }
	| FieldModifiersOpt Void MethodName '(' ParameterListOpt ')' DimsOpt
		ThrowsOpt OverlapsOpt MethodBody
	    { checkMethodModifiers($1, $3->position());
	    TreeNode *body = addSynchronized($1, $10);
	    $$ = new MethodDeclNode($1, $5, makeArrayType($2, $7), $3, $8, $9, body); 
	    if ($7) Error($3->position()) << "cannot return array of void" << endl;
	    }
    	;

MethodName :
	  SimpleName
	| OperatorName
	;

Void :
	VOID
		{ $$ = new VoidTypeNode ($1.posn); }
	;

OverlapsOpt :
	  /* empty */ { $$ = NULL; }
	| OverlapDecl OverlapsOpt { $$ = cons($1, $2); }
	;

OverlapDecl :
	  OVERLAP '(' SimpleName ',' SimpleName ')' 
		{ $$ = new OverlapNode($3, $5, $1.posn); }
	;

/* Note: "Inlined" ResultType to avoid LALR(1) conflict. */


/* Section 6.4.3 */

ParameterListOpt :
	  ParameterList
	| /* empty */
		{ $$ = NULL; }
	;

ParameterList :
	  Parameter
		       { $$ = cons ($1); }
	| Parameter ',' ParameterList
		       { $$ = cons ($1, $3); }
	;

Parameter :
	  OptionalFinal Type SimpleName DimsOpt
              { $$ = new ParameterNode ($1, makeArrayType ($2, $4), $3); }
	;

OptionalFinal :
	  FINAL { $$ = true; }
	| /* empty */ { $$ = false; }
	;


/* Section 6.4.4 */

ThrowsOpt :
	  Throws
	| /* empty */
		{ $$ = NULL; }
	;

Throws :
	  THROWS TypeNameList
		       { $$ = $2; }
	;

TypeNameList :
	  Type
		       { $$ = cons ($1); }
	| Type ',' TypeNameList
		       { $$ = cons ($1, $3); }
	;


/* Section 6.4.5 */

MethodBody :
	  Block
	| ';'
		       { $$ = TreeNode::omitted; }
	;


/* Section 6.5 */

ConstructorDeclaration :
	  FieldModifiersOpt SimpleName '(' ParameterListOpt ')'  ThrowsOpt
	       '{' ConstructorCallStatement BlockStatementsOpt '}'
	    { checkConstructorModifiers ($1, $2->position());
	      $$ = new ConstructorDeclNode ($1, $4, $2, $6, $8, 
					    new BlockNode ($9, $10.posn));
	    }
	| FieldModifiersOpt SimpleName '(' ParameterListOpt ')'  ThrowsOpt
	       '{' BlockStatementsOpt '}'
	    { checkConstructorModifiers ($1, $2->position ());
	      $$ = new ConstructorDeclNode ($1, $4, $2, $6,
					    new SuperConstructorCallNode (NULL, NULL,
									  $2->position()),
					    new BlockNode ($8, $9.posn));
	  }
	;
/* Note: We use FieldModifiersOpt to avoid a LALR(1) conflict. */


/* Section 6.5.4 */

ConstructorCallStatement :
	  ExplicitThisConstructorCallStatement 
	| ExplicitSuperConstructorCallStatement
	;

ExplicitThisConstructorCallStatement :
	  THIS '(' ArgumentListOpt ')' ';'   
		{ $$ = new ThisConstructorCallNode ($3, NULL, false, $1.posn); }
	;

ExplicitSuperConstructorCallStatement :
	  SUPER '(' ArgumentListOpt ')' ';'
		{ $$ = new SuperConstructorCallNode ($3, NULL, $1.posn); }
	;


/* Section 6.7.2 */

StaticInitializer :
	  STATIC Block
		{ $$ = new StaticInitNode ($2); }
	;


/* Section 6.8 */

InterfaceDeclaration :
	  ClassModifiersOpt INTERFACE SimpleName ExtendsInterfacesOpt
		InterfaceBody
	      { checkInterfaceModifiers($1, $2.posn);
	        $$ = new InterfaceDeclNode ($1, $3, $4, $5); }
	;


/* Section 6.8.2 */

ExtendsInterfacesOpt :
	  ExtendsInterfaces
	| /* empty */
		{ $$ = NULL; }
	;

ExtendsInterfaces :
	  EXTENDS TypeNameList
		{ $$ = $2; }
	;

/* Section 6.8.3 */

InterfaceBody :
	  '{' InterfaceMemberDeclarationsOpt '}'
		{ $$ = $2; }
	;

InterfaceMemberDeclarationsOpt :
	  /* empty */
		{ $$ = NULL; }
	| InterfaceMemberDeclaration InterfaceMemberDeclarationsOpt
		{ $$ = extend ($1, $2); }
	;

InterfaceMemberDeclaration :
	  ConstantFieldDeclaration
	| MethodSignatureDeclaration
		{ $$ = cons ($1); }
	;

ConstantFieldDeclaration :
	  FieldModifiersOpt Type VariableDeclarators ';'
             { checkConstantFieldModifiers ($1, $2->position());
	       $$ = NULL;
	       foreach (decl, llist<DeclaratorTuple>, *$3) {
		   $$ = cons (static_cast<TreeNode*>(new FieldDeclNode (makeArrayType ($2, 
										       (*decl).dims),
									(*decl).name,
									$1,
									(*decl).initExpr)),
			      $$);
	       }
	       free_all ($3);
	   }
	;

MethodSignatureDeclaration :
	  FieldModifiersOpt Type MethodName '(' ParameterListOpt ')' DimsOpt
		ThrowsOpt ';'
	    { checkMethodSignatureModifiers ($1, $2->position());
	      $$ = new MethodSignatureNode ($1, $5, 
					    makeArrayType ($2, $7),
					    $3, $8); }
	  | FieldModifiersOpt Void MethodName '(' ParameterListOpt ')' DimsOpt
		  ThrowsOpt ';'
	    { checkMethodSignatureModifiers ($1, $2->position());
	      $$ = new MethodSignatureNode ($1, $5, 
					    makeArrayType ($2, $7),
					    $3, $8); }
	;


/* Titanium extension: templates */

TemplateDeclaration :
	  TEMPLATE '<' TemplateFormalList '>' BasicTypeDeclaration
		{ $$ = new TemplateDeclNode( $5, $3, 0 ); }
	;

TemplateFormalList :
	  TemplateFormal
		{ $$ = cons( $1 ); }
	| TemplateFormal ',' TemplateFormalList
		{ $$ = cons( $1, $3 ); }
	;

TemplateFormal :
	  CLASS SimpleName
		{ $$ = new TemplateTypeParamNode( $2 ); }
	| Type SimpleName
		{ $$ = new TemplateConstParamNode( $1, $2 ); }
	;

TemplateInstance :
	  TEMPLATE TypeName '<' TemplateActualList '>'
		{ $$ = new TemplateInstanceTypeNode( $2, $4, 0 ); }
	;

TemplateActualList :
	  TemplateActual
		{ $$ = cons( $1 ); }
	| TemplateActual ',' TemplateActualList
		{ $$ = cons( $1, $3 ); }
	;

TemplateActual :
	  NoNameType
		{ $$ = $1; }
	| NoNameExpression1
		{ $$ = $1; }
	| ArrayName
		{ $$ = $1; }
	;

			     /* ARRAYS */

/* Section 7.3 */

ArrayInitializer :
	  '{' ElementInitializers '}'
		{ $$ = new ArrayInitNode (dreverse ($2), $1.posn); }
	| '{' ElementInitializers ',' '}'
		{ $$ = new ArrayInitNode (dreverse ($2), $1.posn); }
	| '{' '}'
		{ $$ = new ArrayInitNode (NULL, $1.posn); }
	;
/* Note: I'm going to assume that they didn't intend to allow "{,}". 
   Indeed. (checked with respect to Sun's javac) */

ElementInitializers :
	  Element
		{ $$ = cons ($1); }
	| ElementInitializers ',' Element
		{ $$ = cons ($3, $1); }
	;

Element :
	  Expression
	| ArrayInitializer
	;


		     /* BLOCKS AND STATEMENTS */

/* Section 8.1 */

Block :
	  '{' BlockStatementsOpt '}'
		{ $$ = new BlockNode ($2, $3.posn); }
	;

BlockStatementsOpt :
	  BlockStatements
	| /* empty */
		{ $$ = NULL; }
	;

BlockStatements :
	  BlockStatement
		{ $$ = $1; }
	| BlockStatements BlockStatement 
		{ $$ = extend ($1, $2); }
	;

BlockStatement :
	  LocalVariableDeclarationStatement
		{ $$ = $1; }
	| Statement
		{ $$ = cons ($1); }
	;


/* Section 8.2 */

/* Not LALR(1) if we use OptionalFinal */
LocalVariableDeclarationStatement :
	  FINAL Type VariableDeclarators ';'
             { $$ = makeVarDeclNodes(true, $2, $3); }
	| Type VariableDeclarators ';'
             { $$ = makeVarDeclNodes(false, $1, $2); }
	;

/* Section 8.3 */

Statement :
	  EmptyStatement
	| LabeledStatement
	| ExpressionStatement
	| SelectionStatement
	| IterationStatement
	| JumpStatement
	| GuardingStatement
	| Block
	| PartitionStatement		/* Titanium */
	;

/* Section 8.4 */

EmptyStatement :
	  ';'
		{ $$ = new EmptyStmtNode ($1.posn); }
	;


/* Section 8.5 */

LabeledStatement :
	  SimpleName ':' Statement
		{ $$ = new LabeledStmtNode ($1, $3); }
	;


/* Section 8.6 */

ExpressionStatement :
	  StatementExpression ';'
		{ $$ = new ExpressionStmtNode( $1 ); }
	;

StatementExpression :
	  Assignment
		{ $$ = $1; }
	| PreIncrement
		{ $$ = $1; }
	| PreDecrement 
		{ $$ = $1; }
	| PostIncrement
		{ $$ = $1; }
	| PostDecrement
		{ $$ = $1; }
	| MethodCall
		{ $$ = $1; }
	| AllocationExpression
		{ $$ = $1; }
	;


/* Section 8.7 */

SelectionStatement :
	  IF '(' Expression ')' Statement %prec ELSE
		{ $$ = new IfStmtNode ($3, $5, TreeNode::omitted); }
	| IF '(' Expression ')' Statement ELSE Statement
		{ $$ = new IfStmtNode ($3, $5, $7); }
	| SWITCH '(' Expression ')' SwitchBlock
		{ $$ = new SwitchNode ($3, $5, $1.posn); }
	;

SwitchBlock :
	  '{' SwitchBlockStatementsOpt '}'
		{ $$ = $2; }
	;

SwitchBlockStatementsOpt :
	  /* empty */		{ $$ = NULL; }
	| SwitchLabels BlockStatements SwitchBlockStatementsOpt
		{ $$ = cons (static_cast<TreeNode*>(new SwitchBranchNode ($1, $2)), $3); }
	;

SwitchLabels :
	  SwitchLabel
		{ $$ = cons ($1); }
	| SwitchLabel SwitchLabels
		{ $$ = cons ($1, $2); }
	;

SwitchLabel :
	  CASE ConstantExpression ':' 
		{ $$ = new CaseNode ($2, $1.posn); }
	| DEFAULT ':' 
		{ $$ = new CaseNode (TreeNode::omitted, $1.posn); }
	;


/* Section 8.8 */

IterationStatement :
	  WHILE '(' Expression ')' Statement
		{ $$ = new WhileNode ($3, $5); }
	| DO Statement WHILE '(' Expression ')' ';'
		{ $$ = new DoNode ($2, $5); }
	| FOR '(' ForInit ExpressionOpt ';' ForUpdateOpt ')' Statement
		{ $$ = new ForNode ($3, $4, $6, $8); }
        | ForEachStatement		/* Titanium */
	;

ForInit :
	  StatementExpressionsOpt ';'
		{ $$ = $1; }
	| LocalVariableDeclarationStatement
	        { $$ = $1; }
	;

ForUpdateOpt :
	  StatementExpressions
	| /* empty */
		{ $$ = NULL; }
	;

StatementExpressionsOpt :
	  StatementExpressions
	| /* empty */
		{ $$ = NULL; }
	;

StatementExpressions :
	  StatementExpression
		{ $$ = cons (static_cast<TreeNode *>(new ExpressionStmtNode($1))); }
	| StatementExpression ',' StatementExpressions
		{ $$ = cons (static_cast<TreeNode *>(new ExpressionStmtNode($1)), $3); }
	;

			/* Titanium */

ForEachStatement :
	  FOREACH '(' ForEachClauses ')' OptionalInline Statement
		{ $$ = new ForEachStmtNode ($3, $6, $5, $1.posn); }
	;

OptionalInline :
	  INLINE { $$ = true; }
	| /* empty */ { $$ = false; }
	;

ForEachClauses :
	  SimpleName SpecialIn Expression
		{ $$ = cons(static_cast<TreeNode *>(new ForEachPairNode($1, $3))); }
	| SimpleName SpecialIn Expression ',' ForEachClauses
		{ $$ = cons(static_cast<TreeNode *>(new ForEachPairNode($1, $3)), $5); }
	;

SpecialIn :
	  IN { }
	| IDENTIFIER
	  	{ if (*$1.val != "in")
	      	    Error(lexerPosition()) << "bad keyword in foreach - expected 'in'" << endl;
	  	}
	;

/* Section 8.9 */

JumpStatement :
	  BREAK LabelOpt ';'
		{ $$ = new BreakNode ($2, NULL, NULL, $1.posn); }
	| CONTINUE LabelOpt ';'
		{ $$ = new ContinueNode ($2, NULL, NULL, $1.posn); }
	| RETURN ExpressionOpt ';'
		{ $$ = new ReturnNode ($2, NULL, $1.posn); }
	| THROW Expression ';'
		{ $$ = new ThrowNode ($2, $1.posn); }
	;


LabelOpt :
	  SimpleName
	| /* empty */
		{ $$ = TreeNode::omitted; }
	;
		    

/* Section 8.10 */

GuardingStatement :
	  SYNCHRONIZED '(' Expression ')' Statement
		{ $$ = new SynchronizedNode ($3, $5); }
	| 
	  TryBlock Finally
		{ $$ = new TryStmtNode ($1, NULL, $2); }
	| TryBlock Catches
		{ $$ = new TryStmtNode ($1, $2, TreeNode::omitted); }
	| TryBlock Catches Finally
		{ $$ = new TryStmtNode ($1, $2, $3); }
	;

TryBlock :
	  TRY Block
		{ $$ = new TryNode ($2); }
	;

Catches :
	  Catch
		{ $$ = cons ($1); }
	| Catch Catches
		{ $$ = cons ($1, $2); }
	;

Catch :
	  CATCH '(' Parameter ')' Block
		{ $$ = new CatchNode ($3, $5, $1.posn); }
	;

Finally :
	  FINALLY Block
		{ $$ = new FinallyNode( $2 ); }
	;

			/* Titanium */

PartitionStatement :
	  PARTITION '{' PartitionClauses '}'  
		 { $$ = new PartitionStmtNode(TreeNode::omitted, $3, $1.posn); }
	| PARTITION SimpleName '{' PartitionClauses '}'  
		 { $$ = new PartitionStmtNode($2, $4, $1.posn); }
	;

PartitionClauses:
	  /* empty */			{ $$ = NULL; }
	| Expression GUARDS Statement PartitionClauses 
				{ $$ = cons(static_cast<TreeNode *>(new PartitionClauseNode($1, $3)),
					    $4); }
	;


			  /* EXPRESSIONS */


/* Section 9.4 */

PrimaryExpression :
	  ArrayName			%prec ')'
		{ $$ = $1->asExpr(); }
	| NotJustName
	;

NotJustName :
	  AllocationExpression
	| ComplexPrimary
	;

ComplexPrimary :
	  Literal
	| NULL_VAL
		{ $$ = new NullPntrNode ($1.posn); }
	| THIS
		{ $$ = new ThisNode (NULL, Common::None, $1.posn); }
	| '(' Expression ')'
		{ $$ = $2; }
	| '(' ArrayName ')'
		{ $$ = $2->asExpr(); }
	| ArrayAccess
	| FieldAccess
		{ $$ = $1; }
	| MethodCall
	;
/* Note: The third production above is redundant, but helps resolve a LALR(1) */
/* lookahead conflict arising in cases like "(T) + x" (Do we reduce Name  */
/* T to ClassOrInterfaceType on seeing the ")"?). See also CastExpression */
/* in section 9.10.  */

ArrayName :
	  Name QualifiersOpt { $$ = new ArrayNameNode($1, $2, NULL); }
	| FullArrayName
	;

FullArrayName :
	  Name QualifiersOpt ArraySpecifiers { $$ = new ArrayNameNode($1, $2, $3); }
	;

Name :
          SimpleName
	| QualifiedName
	;

SimpleName :
	  IDENTIFIER
	  	{ $$ =
		    new NameNode (TreeNode::omitted, $1.val, NULL, $1.posn); }
	;

QualifiedName :
	  Name '.' IDENTIFIER
		{ $$ = new NameNode ($1, $3.val, NULL, $3.posn); }
	| Name '.' OperatorName
		{ $$ = new NameNode ($1, $3->ident(), NULL, $3->position()); }
	;

OperatorName :
	  OPERATOR '!' { $$ = newOperator("!", $2.posn); }
	| OPERATOR '~' { $$ = newOperator("~", $2.posn); }
	| OPERATOR '<' { $$ = newOperator("<", $2.posn); }
	| OPERATOR '>' { $$ = newOperator(">", $2.posn); }
	| OPERATOR LE { $$ = newOperator("<=", $2.posn); }
	| OPERATOR GE { $$ = newOperator(">=", $2.posn); }
	| OPERATOR EQ { $$ = newOperator("==", $2.posn); }
	| OPERATOR NE { $$ = newOperator("!=", $2.posn); }
	| OPERATOR '+' { $$ = newOperator("+", $2.posn); }
	| OPERATOR '-' { $$ = newOperator("-", $2.posn); }
	| OPERATOR '*' { $$ = newOperator("*", $2.posn); }
	| OPERATOR '/' { $$ = newOperator("/", $2.posn); }
	| OPERATOR '&' { $$ = newOperator("&", $2.posn); }
	| OPERATOR '|' { $$ = newOperator("|", $2.posn); }
	| OPERATOR '^' { $$ = newOperator("^", $2.posn); }
	| OPERATOR '%' { $$ = newOperator("%", $2.posn); }
	| OPERATOR LSHIFTL { $$ = newOperator("<<", $2.posn); }
	| OPERATOR ASHIFTR { $$ = newOperator(">>", $2.posn); }
	| OPERATOR LSHIFTR { $$ = newOperator(">>>", $2.posn); }
	| OPERATOR PLUS_ASG { $$ = newOperator("+=", $2.posn); }
	| OPERATOR MINUS_ASG { $$ = newOperator("-=", $2.posn); }
	| OPERATOR MULT_ASG { $$ = newOperator("*=", $2.posn); }
	| OPERATOR DIV_ASG { $$ = newOperator("/=", $2.posn); }
	| OPERATOR REM_ASG { $$ = newOperator("%=", $2.posn); }
	| OPERATOR LSHIFTL_ASG { $$ = newOperator("<<=", $2.posn); }
	| OPERATOR ASHIFTR_ASG { $$ = newOperator(">>=", $2.posn); }
	| OPERATOR LSHIFTR_ASG { $$ = newOperator(">>>=", $2.posn); }
	| OPERATOR AND_ASG { $$ = newOperator("&=", $2.posn); }
	| OPERATOR XOR_ASG { $$ = newOperator("^=", $2.posn); }
	| OPERATOR OR_ASG { $$ = newOperator("|=", $2.posn); }
	| OPERATOR '[' ']' { $$ = newOperator("[]", $2.posn); }
	| OPERATOR '[' ']' '=' { $$ = newOperator("[]=", $2.posn); }
	;

/* Section 9.5 */

ArrayAccess :
	  ComplexPrimary '[' IndexExpression ']'
		{ $$ = new ArrayAccessNode ($1, $3); }
	;

IndexExpression : /* titanium - implicit point creation */
	  ArgumentList { $$ = new PointNode($1); }
	;


/* Section 9.6 */

FieldAccess :
/* The following never matches Name '.' IDENTIFIER */
	  NotJustName '.' MethodName
		{ $$ = new ObjectFieldAccessNode ($1, $3); }
	| SUPER '.' MethodName
		{ $$ = new SuperFieldAccessNode (NULL, Common::None, $3); }
	| ComplexBaseType '.' MethodName
		{ $$ = new TypeFieldAccessNode ($1, $3); }
	| FullArrayName '.' MethodName
		{ $$ = new ObjectFieldAccessNode ($1->asExpr(), $3); }
	| OperatorName
		{ $$ = new ThisFieldAccessNode (NULL, Common::None, $1); }
	;


/* Section 9.7 */

MethodCall :
	  FieldAccess '(' ArgumentListOpt ')'			
		{ $$ = new MethodCallNode ($1, $3); }
	| ArrayName '(' ArgumentListOpt ')'
		{ $$ = new MethodCallNode ($1->asExpr(), $3); }
	;

ArgumentListOpt :
	  ArgumentList
	| /* empty */
		{ $$ = NULL; }
	;

ArgumentList :
	  Expression
		{ $$ = cons ($1); }
	| Expression ',' ArgumentList
		{ $$ = cons ($1, $3); }
	;


/* Section 9.8 */

AllocationExpression :
	  NEW RegionOpt QualifiedBaseType '(' ArgumentListOpt ')'
		{ $$ = new AllocateNode ($2, $3, $5, NULL); }
	| NEW RegionOpt QualifiedBaseType DimExprs
		{ $$ = new AllocateArrayNode ($2, $3, $4); }
	;

RegionOpt :
	  '(' Expression ')'
		{ $$ = $2; }
	| /* empty */
		{ $$ = TreeNode::omitted; }
	;

DimExprs :
	  DimExpr
		{ $$ = cons ($1); }
	| DimExpr DimExprs 
		{ $$ = cons ($1, $2); }
	;

DimExpr :
	  ArraySpecifier
		{ $$ = $1; }
	| DomainLiteral QualifiersOpt
		{ $$ = new AllocateArrayDimensionNode($1, $2); }
	;

DimsOpt :
	  Dims
	| /* empty */
		{ $$ = 0; }
	;

Dims :
	  '[' ']' 
		{ $$ = 1; }
	| '[' ']' LOCAL
		{ $$ = 1; }
	| Dims '[' ']'
		{ $$ = $1 + 1; }
	| Dims '[' ']' LOCAL
		{ $$ = $1 + 1; }
	;


/* Section 9.9 */

PostfixExpression :
	  PrimaryExpression
	| OtherPostfixExpression
	;

NoNamePostfixExpression :
	  NotJustName
	| OtherPostfixExpression
	;

OtherPostfixExpression :
	  PostIncrement
	| PostDecrement
	;

PostIncrement :
	  PostfixExpression PLUSPLUS
		{ $$ = new PostIncrNode ($1); }
	;

PostDecrement :
	  PostfixExpression MINUSMINUS
		{ $$ = new PostDecrNode ($1); }
	;


/* Section 9.10 */

UnaryExpression :
	  RestrictedUnaryExpression
	| OtherUnaryExpression
	;

NoNameUnaryExpression :
	  NoNameRestrictedUnaryExpression
	| OtherUnaryExpression
	;

OtherUnaryExpression :
	  PreIncrement
	| PreDecrement
	| '+' UnaryExpression
		{ $$ = new UnaryPlusNode ($2, $1.posn); }
	| '-' UnaryExpression
		{ $$ = new UnaryMinusNode ($2, $1.posn); }
	| PointLiteral			/* Titanium */
	| DomainLiteral			/* Titanium */
	;

PreIncrement :
	  PLUSPLUS UnaryExpression
		{ $$ = new PreIncrNode ($2); }
	;

PreDecrement :
	  MINUSMINUS UnaryExpression
		{ $$ = new PreDecrNode ($2); }
	;

RestrictedUnaryExpression :
	  PostfixExpression
	| OtherRestrictedPostfixExpression
	;

NoNameRestrictedUnaryExpression :
	  NoNamePostfixExpression
	| OtherRestrictedPostfixExpression
	;

OtherRestrictedPostfixExpression :
	  '~' UnaryExpression
		{ $$ = new ComplementNode ($2); }
	| '!' UnaryExpression
		{ $$ = new NotNode ($2); }
	| CastExpression
	;

CastExpression :
	  '(' Type ')' UnaryExpression
		{ $$ = new CastNode ($4, $2); }
	| '(' ArrayName ')' RestrictedUnaryExpression
		{ $$ = new CastNode ($4, $2->asType()); }
	;
/* Note: The last production is redundant, but helps resolve a LALR(1) */
/* lookahead conflict arising in cases like "(T) + x" (Do we reduce Name  */
/* T to ClassOrInterfaceType on seeing the ")"?). See also ComplexPrimary */
/* in section 9.4.  */

/* Titanium */

PointLiteral :
	  '[' ArgumentList ']'		{ $$ = new PointNode($2); }
	;

DomainLiteral :
	  '[' DomainPairs ']'		{ $$ = new DomainNode($2); }
	| '[' DomainTriples ']'		{ $$ = new DomainNode($2); }
        ;

DomainPairs :
	  DomainPair			{ $$ = cons($1); }
	| DomainPair ',' DomainPairs 	{ $$ = cons($1, $3); }
	;

DomainPair :
	  Expression ':' Expression
	  	{ llist<TreeNode*>* children = cons($1, cons($3));
		  $$ = new TreeListNode(children); }
	;

DomainTriples :
	  DomainTriple			{ $$ = cons($1); }
	| DomainTriple ',' DomainTriples { $$ = cons($1, $3); }
	;

DomainTriple :
	  Expression ':' Expression ':' Expression 
		{ llist<TreeNode*>* children = cons($1, cons($3, cons($5)));
		  $$ = new TreeListNode(children); }
	;

/* Sections 9.11 to 9.19 */

ExpressionOpt :
	  Expression
	| /* empty */
		{ $$ = TreeNode::omitted; }
	;

Expression :
	  Expression1
	| BroadcastExpression
	| Expression '<' Expression
		{ $$ = new LTNode ($1, $3); }
	| Expression '>' Expression
		{ $$ = new GTNode ($1, $3); }
	| Expression LE Expression
		{ $$ = new LENode ($1, $3); }
	| Expression GE Expression
		{ $$ = new GENode ($1, $3); }
	| Expression INSTANCEOF Type
		{ $$ = new InstanceOfNode ($1, $3); }
	| Expression EQ Expression
		{ $$ = new EQNode ($1, $3); }
	| Expression NE Expression
		{ $$ = new NENode ($1, $3); }
	| Expression '&' Expression
		{ $$ = new BitAndNode ($1, $3); }
	| Expression '|' Expression
		{ $$ = new BitOrNode ($1, $3); }
	| Expression '^' Expression
		{ $$ = new BitXorNode ($1, $3); }
	| Expression CAND Expression
		{ $$ = new CandNode ($1, $3); }
	| Expression COR Expression
		{ $$ = new CorNode ($1, $3); }
	| Expression '?' Expression ':' Expression
		{ $$ = new IfExprNode ($1, $3, $5); }
	| Assignment
	;

Expression1 :
	  UnaryExpression
	| BinaryExpression1
	;

NoNameExpression1 :
	  NoNameUnaryExpression
	| BinaryExpression1
	;

BinaryExpression1 :
          Expression1 '*' Expression1
		{ $$ = new MultNode ($1, $3); }
	| Expression1 '/' Expression1
		{ $$ = new DivNode ($1, $3); }
	| Expression1 '%' Expression1
		{ $$ = new RemNode ($1, $3); }
	| Expression1 '+' Expression1
		{ $$ = new PlusNode ($1, $3); }
	| Expression1 '-' Expression1
		{ $$ = new MinusNode ($1, $3); }
	| Expression1 LSHIFTL Expression1
		{ $$ = new LeftShiftLogNode ($1, $3); }
	| Expression1 LSHIFTR Expression1
		{ $$ = new RightShiftLogNode ($1, $3); }
	| Expression1 ASHIFTR Expression1
		{ $$ = new RightShiftArithNode ($1, $3); }
        ;


/* Section 9.20 */

Assignment :
	  UnaryExpression '=' Expression
		{ $$ = new AssignNode ($1, $3); }
	| UnaryExpression MULT_ASG Expression
		{ $$ = new MultAssignNode ($1, $3); }
	| UnaryExpression DIV_ASG Expression
		{ $$ = new DivAssignNode ($1, $3); }
	| UnaryExpression REM_ASG Expression
		{ $$ = new RemAssignNode ($1, $3); }
	| UnaryExpression PLUS_ASG Expression
		{ $$ = new PlusAssignNode ($1, $3); }
	| UnaryExpression MINUS_ASG Expression
		{ $$ = new MinusAssignNode ($1, $3); }
	| UnaryExpression LSHIFTL_ASG Expression
		{ $$ = new LeftShiftLogAssignNode ($1, $3); }
	| UnaryExpression LSHIFTR_ASG Expression
		{ $$ = new RightShiftLogAssignNode ($1, $3); }
	| UnaryExpression ASHIFTR_ASG Expression
		{ $$ = new RightShiftArithAssignNode ($1, $3); }
	| UnaryExpression AND_ASG Expression
		{ $$ = new BitAndAssignNode ($1, $3); }
	| UnaryExpression XOR_ASG Expression
		{ $$ = new BitXorAssignNode ($1, $3); }
	| UnaryExpression OR_ASG Expression
		{ $$ = new BitOrAssignNode ($1, $3); }
	;


/* Section 9.22 */

ConstantExpression :
	  Expression 
	;

BroadcastExpression :
	  BROADCAST Expression FROM Expression %prec BROADCAST
		{ $$ = new BroadcastNode ($2, $4); }
	;

			 /* MISCELLANEOUS */

		  /* Collected error productions */

ImportStatement :
	  IMPORT error ';'
		{ $$ = TreeNode::omitted; }
	;

PackageDeclarationOpt :
	  _PACKAGE error ';'
		{ $$ = TreeNode::omitted; }
	;

Block :
	  '{' error '}'
		{ $$ = TreeNode::omitted; }
	;

Statement :
	   error ';'
		{ $$ = new EmptyStmtNode; }
	|  error Block
		{ $$ = $2; }
	;

FieldDeclaration :
	   error ';'
		{ $$ = NULL; }
	;

TypeDeclaration :
	   error ClassBody
		{ $$ = TreeNode::omitted; }
	;


%%

static void yyerror(const char* msg)
{
  Error(yylval.SimpTerminal.posn) << msg << endl;
}

static TreeNode *newOperator(char *op, SourcePosn p)
{
  return new NameNode(TreeNode::omitted, intern(op), NULL, p);
}

/* Check that FLAG is not a member of FLAGS.  If it is, report an */
/* error at POSN, giving NAME as the name of the offending modifier. */
static void checkModifier(SourcePosn posn, Common::Modifiers flags,
			  Common::Modifiers flag, const char* name)
{
  if (((unsigned long) flags & (unsigned long) flag) != 0)
    Error (posn) << "illegal modifier: '" << name << "'" << endl;
}

/* Check that only the modifiers in ... are in FLAGS, reporting an */
/* error at POSN if not. */
static void checkModifiers(SourcePosn posn, Common::Modifiers flags, ...)
{
  unsigned long flag;
  va_list ap;

  va_start (ap, flags);
  while (true) {
    flag = va_arg (ap, unsigned long);
    if (flag == 0)
      break;
    flags = (Common::Modifiers)((unsigned long)flags & ~flag);
  }
  va_end (ap);

  if ((unsigned long) flags != 0)
    Error(posn) << "illegal modifiers: " << stringifyModifiers(flags) << endl;
}

static void checkFieldModifiers(Common::Modifiers flags, 
				SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Protected, TreeNode::Private,
		 TreeNode::Static, TreeNode::Final,
		 TreeNode::Transient, TreeNode::Volatile,
		 (Common::Modifiers) 0);
}

static void checkConstantFieldModifiers(Common::Modifiers flags, 
					SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Static, TreeNode::Final,
		 (Common::Modifiers) 0);
}

static void checkMethodModifiers(Common::Modifiers flags, 
				 SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Protected, TreeNode::Private,
		 TreeNode::Static, TreeNode::Final,
		 TreeNode::Abstract, TreeNode::Native, 
		 TreeNode::Sglobal, TreeNode::Local,
		 TreeNode::NonsharedQ, TreeNode::PolysharedQ,
		 TreeNode::Synchronized, TreeNode::Inline,
		 (Common::Modifiers) 0);
}

static void checkConstructorModifiers(Common::Modifiers flags, 
				      SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Protected, TreeNode::Private,
		 TreeNode::NonsharedQ, TreeNode::PolysharedQ,
		 TreeNode::Sglobal, TreeNode::Inline,
		 (Common::Modifiers) 0);
}

static void checkMethodSignatureModifiers(Common::Modifiers flags, 
					  SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Abstract,
		 TreeNode::Single, TreeNode::Local,
		 TreeNode::NonsharedQ, TreeNode::PolysharedQ,
		 (Common::Modifiers) 0);
}

static void checkInterfaceModifiers(Common::Modifiers flags, 
				    SourcePosn posn)
{
  checkModifiers(posn, flags, 
		 TreeNode::Public, TreeNode::Abstract, 
		 (Common::Modifiers) 0);
}

static TreeNode *addSynchronized(Common::Modifiers modifiers, TreeNode *body)
{
  if ((modifiers & TreeNode::Synchronized) != 0 && !body->absent()) {
    TreeNode *syncObject;
    if ((modifiers & TreeNode::Static) != 0) {
      syncObject = TreeNode::omitted;
    }
    else {
      syncObject = new ThisNode(NULL, Common::None, body->position());
    }
    body = new SynchronizedNode(syncObject, body);
  }
  return body;
}