Refactor CYSetLast to return a reference to the eol.

[cycript.git] / Cycript.yy.in

diff --git a/Cycript.yy.in b/Cycript.yy.in
index f4c6a20aa2c188b9f56d141f9a8246e0c7245c1b..e7355979673938406fcd81e96f1cfcbb6a86b202 100644 (file)
--- a/Cycript.yy.in
+++ b/Cycript.yy.in
@@ -1,5 +1,5 @@
 /* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2010  Jay Freeman (saurik)
+ * Copyright (C) 2009-2012  Jay Freeman (saurik)
 */
 
 /* GNU Lesser General Public License, Version 3 {{{ */
@@ -126,6 +126,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %parse-param { CYDriver &driver }
 %lex-param { void *cyscanner }
 
+/* Token Declarations {{{ */
 @begin E4X
 %token XMLCDATA
 %token XMLComment
@@ -332,6 +333,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <expression_> ArrowFunction
 %type <functionParameter_> ArrowParameters
 %type <expression_> AssignmentExpression
+%type <identifier_> Binding
 %type <identifier_> BindingIdentifier
 %type <expression_> BitwiseANDExpression
 %type <statement_> Block_
@@ -348,6 +350,8 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <clause_> CaseClause
 %type <clause_> CaseClausesOpt
 %type <catch_> CatchOpt
+%type <comprehension_> ComprehensionForList
+%type <comprehension_> ComprehensionForListOpt
 %type <comprehension_> ComprehensionList
 %type <comprehension_> ComprehensionListOpt
 %type <expression_> ConditionalExpression
@@ -393,7 +397,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <statement_> LetStatement
 %type <statement_> LexicalDeclaration
 %type <literal_> Literal
-%type <literal_> LiteralNoRE
+%type <literal_> ValueLiteral
 %type <expression_> LogicalANDExpression
 %type <expression_> LogicalORExpression
 %type <member_> MemberAccess
@@ -445,11 +449,13 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <word_> WordOpt
 
 @begin ObjectiveC
+%type <expression_> BoxableExpression
 %type <statement_> CategoryStatement
 %type <expression_> ClassExpression
+%type <field_> ClassFieldListOpt
+%type <field_> ClassFields
 %type <statement_> ClassStatement
 %type <expression_> ClassSuperOpt
-%type <field_> ClassFieldList
 %type <message_> ClassMessageDeclaration
 %type <message_> ClassMessageDeclarationListOpt
 %type <className_> ClassName
@@ -494,12 +500,14 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <expression_> XMLListInitialiser
 %type <expression_> XMLInitialiser
 @end
-
+/* }}} */
+/* Token Priorities {{{ */
 %nonassoc ""
 %left "++" "--"
 
 %nonassoc "if"
 %nonassoc "else"
+/* }}} */
 
 %start Program
 
@@ -530,44 +538,31 @@ LexNoFunction
     : { if (yychar == token::Function) yychar = token::Function_; }
     ;
 
+LexNoAtImplementation
+    : { if (yychar == token::AtImplementation) yychar = token::AtImplementation_; }
+    ;
+
 LexSetStatement
-    : LexNoBrace LexNoFunction
+    : LexNoBrace LexNoFunction LexNoAtImplementation
     ;
 /* }}} */
-
+/* Virtual Tokens {{{ */
 BRACE
     : "{"
     | "\n{"
     ;
+/* }}} */
 
-StrictSemi
-    : { driver.Warning(yylloc, "warning, automatic semi-colon insertion required"); }
-    ;
-
-Terminator
-    : ";"
-    | error { if (yychar != yyeof_ && yychar != token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
-    ;
-
-TerminatorOpt
-    : ";"
-    | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
+/* 7.6 Identifier Names and Identifiers {{{ */
+IdentifierName
+    : Word { $$ = $1; }
     ;
 
-/*CommaOpt
-    : ","
-    |
-    ;*/
-
 NewLineOpt
     : "\n"
     |
     ;
 
-IdentifierName
-    : Word { $$ = $1; }
-    ;
-
 Word
     : Identifier { $$ = $1; }
     | "break" NewLineOpt { $$ = $1; }
@@ -618,15 +613,6 @@ WordOpt
     | { $$ = NULL; }
     ;
 
-@begin ObjectiveC
-PrimaryExpression
-    : "@" LiteralNoRE { $$ = CYNew CYBox($2); }
-    | "@" ArrayLiteral { $$ = CYNew CYBox($2); }
-    | "@" ObjectLiteral { $$ = CYNew CYBox($2); }
-    | "@" Parenthetical { $$ = CYNew CYBox($2); }
-    ;
-@end
-
 Identifier
     : Identifier_ { $$ = $1; }
 
@@ -668,27 +654,48 @@ IdentifierOpt
     : Identifier { $$ = $1; }
     | { $$ = NULL; }
     ;
+/* }}} */
 
-LiteralNoRE
+/* 7.8 Literals {{{ */
+Literal
     : NullLiteral { $$ = $1; }
-    | BooleanLiteral { $$ = $1; }
-    | NumericLiteral { $$ = $1; }
-    | StringLiteral { $$ = $1; }
+    | ValueLiteral { $$ = $1; }
     ;
 
-Literal
-    : LiteralNoRE { $$ = $1; }
+ValueLiteral
+    : BooleanLiteral { $$ = $1; }
+    | NumericLiteral { $$ = $1; }
+    | StringLiteral { $$ = $1; }
     | RegularExpressionLiteral { $$ = $1; }
     ;
-
+/* }}} */
+/* 7.8.1 Null Literals {{{ */
 NullLiteral
     : "null" { $$ = $1; }
     ;
-
+/* }}} */
+/* 7.8.2 Boolean Literals {{{ */
 BooleanLiteral
     : "true" { $$ = $1; }
     | "false" { $$ = $1; }
     ;
+/* }}} */
+
+/* 7.9 Automatic Semicolon Insertion {{{ */
+StrictSemi
+    : { driver.Warning(yylloc, "warning, automatic semi-colon insertion required"); }
+    ;
+
+Terminator
+    : ";"
+    | error { if (yychar != yyeof_ && yychar != token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
+    ;
+
+TerminatorOpt
+    : ";"
+    | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
+    ;
+/* }}} */
 
 /* 11.1 Primary Expressions {{{ */
 Parenthetical
@@ -735,6 +742,22 @@ ElementListOpt
     | LexSetRegExp { $$ = NULL; }
     ;
 /* }}} */
+/* 11.1.4.2 Array Comprehension {{{ */
+PrimaryExpression
+    : "[" LexPushInOff AssignmentExpression ComprehensionForList LexPopIn "]" { $$ = CYNew CYArrayComprehension($3, $4); }
+    ;
+
+ComprehensionForList
+    : "for" Binding "in" Expression ComprehensionForListOpt { $$ = CYNew CYForInComprehension($2, $4, $5); }
+    | "for" Binding "of" Expression ComprehensionForListOpt { $$ = CYNew CYForOfComprehension($2, $4, $5); }
+    ;
+
+ComprehensionForListOpt
+    : ComprehensionForList { $$ = $1; }
+    | "if" Expression { $$ = CYNew CYIfComprehension($2); }
+    | { $$ = NULL; }
+    ;
+/* }}} */
 /* 11.1.5 Object Initialiser {{{ */
 ObjectLiteral
     : BRACE LexPushInOff PropertyDefinitionListOpt LexPopIn "}" { $$ = CYNew CYObject($3); }
@@ -1033,11 +1056,16 @@ StatementListItem
     | Declaration { $$ = $1; }
     ;
 /* }}} */
+
 /* 12.2 Declarations {{{ */
 BindingIdentifier
     : Identifier { $$ = $1; }
     ;
 
+Binding
+    : BindingIdentifier
+    ;
+
 // XXX: BindingPattern
 /* }}} */
 /* 12.2.1 Let and Const Declarations {{{ */
@@ -1089,6 +1117,7 @@ SingleNameBinding
     : BindingIdentifier InitialiserOpt { $$ = CYNew CYDeclaration($1, $2); }
     ;
 /* }}} */
+
 /* 12.3 Empty Statement {{{ */
 EmptyStatement
     : ";" { $$ = CYNew CYEmpty(); }
@@ -1295,17 +1324,13 @@ ClassSuperOpt
     | { $$ = NULL; }
     ;
 
-ClassField
-    : Expression Identifier ";"
-    ;
-
-ClassFieldList
-    : BRACE ClassFieldListOpt "}" { $$ = NULL; }
+ClassFieldListOpt
+    : Expression Identifier ";" ClassFieldListOpt { $$ = CYNew CYField($1, $2, $4); }
+    | { $$ = NULL; }
     ;
 
-ClassFieldListOpt
-    : ClassFieldListOpt ClassField
-    |
+ClassFields
+    : BRACE ClassFieldListOpt "}" { $$ = $2; }
     ;
 
 MessageScope
@@ -1315,7 +1340,7 @@ MessageScope
 
 TypeOpt
     : "(" Expression ")" { $$ = $2; }
-    | "(" LexSetRegExp "void" ")" { $$ = NULL; }
+    | "(" LexSetRegExp "void" ")" { $$ = CYNew CYString("v"); }
     | { $$ = NULL; }
     ;
 
@@ -1373,11 +1398,11 @@ ClassProtocolListOpt
     ;
 
 ClassExpression
-    : "@implementation" LexPushInOff ClassNameOpt ClassSuperOpt ClassProtocolListOpt ClassFieldList ClassMessageDeclarationListOpt LexPopIn "@end" { $$ = CYNew CYClassExpression($3, $4, $5, $6, $7); }
+    : "@implementation" LexPushInOff ClassNameOpt ClassSuperOpt ClassProtocolListOpt ClassFields ClassMessageDeclarationListOpt LexPopIn "@end" { $$ = CYNew CYClassExpression($3, $4, $5, $6, $7); }
     ;
 
 ClassStatement
-    : ";@implementation" ClassName ClassSuperOpt ClassProtocolListOpt ClassFieldList ClassMessageDeclarationListOpt "@end" { $$ = CYNew CYClassStatement($2, $3, $4, $5, $6); }
+    : ";@implementation" ClassName ClassSuperOpt ClassProtocolListOpt ClassFields ClassMessageDeclarationListOpt "@end" { $$ = CYNew CYClassStatement($2, $3, $4, $5, $6); }
     ;
 
 CategoryName
@@ -1463,6 +1488,21 @@ StatementListItem
     : "@import" ImportPath { $$ = CYNew CYImport(); }
     ;
 /* }}} */
+/* Cycript (Objective-C): Boxed Expressions {{{ */
+BoxableExpression
+    : NullLiteral { $$ = $1; }
+    | BooleanLiteral { $$ = $1; }
+    | NumericLiteral { $$ = $1; }
+    | StringLiteral { $$ = $1; }
+    | ArrayLiteral { $$ = $1; }
+    | ObjectLiteral { $$ = $1; }
+    | Parenthetical { $$ = $1; }
+    ;
+
+PrimaryExpression
+    : "@" BoxableExpression { $$ = CYNew CYBox($2); }
+    ;
+/* }}} */
 @end
 
 @begin C
@@ -1515,11 +1555,12 @@ LexSetXMLTag
     : { driver.SetCondition(CYDriver::XMLTagCondition); }
     ;
 /* }}} */
-
+/* Virtual Tokens {{{ */
 XMLWhitespaceOpt
     : XMLWhitespace
     |
     ;
+/* }}} */
 
 /* 8.1 Context Keywords {{{ */
 Identifier
@@ -1534,6 +1575,7 @@ XMLMarkup
     | XMLPI { $$ = $1; }
     ;
 /* }}} */
+
 /* 11.1 Primary Expressions {{{ */
 PrimaryExpression
     : PropertyIdentifier { $$ = CYNew CYPropertyVariable($1); }
@@ -1637,6 +1679,7 @@ XMLListInitialiser
     : "<>" LexPushInOff LexPushXMLContent XMLElementContent LexPop LexPopIn "</>" { $$ = CYNew CYXMLList($4); }
     ;
 /* }}} */
+
 /* 11.2 Left-Hand-Side Expressions {{{ */
 PropertyIdentifier_
     : Identifier { $$ = $1; }
@@ -1666,8 +1709,8 @@ IfComprehension
     ;
 
 ForComprehension
-    : "for" "(" LexPushInOn Identifier LexPopIn "!in" Expression ")" { $$ = CYNew CYForInComprehension($4, $7); }
-    | "for" "each" "(" LexPushInOn Identifier LexPopIn "!in" Expression ")" { $$ = CYNew CYForOfComprehension($5, $8); }
+    : "for" "(" Identifier "in" Expression ")" { $$ = CYNew CYForInComprehension($3, $5); }
+    | "for" "each" "(" Identifier "in" Expression ")" { $$ = CYNew CYForOfComprehension($4, $6); }
     ;
 
 ComprehensionList