Add extern "C" expression, for Functor's toCYON().

[cycript.git] / Parser.ypp.in

diff --git a/Parser.ypp.in b/Parser.ypp.in
index acda20a719a51fdbd1d724d57d2d0647d986c3e8..11d8d298d8b63b779d08db133399c4b839329fe7 100644 (file)
--- a/Parser.ypp.in
+++ b/Parser.ypp.in
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
@@ -27,6 +27,7 @@
 #include "Driver.hpp"
 #include "Parser.hpp"
 #include "Stack.hpp"
+#include "Syntax.hpp"
 #define CYNew new(driver.pool_)
 
 @begin ObjectiveC
@@ -48,6 +49,7 @@
 %union { CYBinding *binding_; }
 %union { CYBindings *bindings_; }
 %union { CYBoolean *boolean_; }
+%union { CYBraced *braced_; }
 %union { CYClause *clause_; }
 %union { cy::Syntax::Catch *catch_; }
 %union { CYClassTail *classTail_; }
@@ -71,7 +73,6 @@
 %union { CYParenthetical *parenthetical_; }
 %union { CYProperty *property_; }
 %union { CYPropertyName *propertyName_; }
-%union { CYRubyProc *rubyProc_; }
 %union { CYSpan *span_; }
 %union { CYStatement *statement_; }
 %union { CYString *string_; }
@@ -85,6 +86,7 @@
 %union { CYTypeStructField *structField_; }
 %union { CYTypeModifier *modifier_; }
 %union { CYTypeSpecifier *specifier_; }
+%union { CYTypedFormal *typedFormal_; }
 %union { CYTypedIdentifier *typedIdentifier_; }
 %union { CYTypedParameter *typedParameter_; }
 @end
@@ -183,6 +185,13 @@ type; })
         yyla.type = yytranslate_(token::to); \
 } while (false)
 
+#define CYHLD(location, token) do { \
+    if (driver.hold_ != empty_symbol) \
+        CYERR(location, "unexpected hold"); \
+    driver.hold_ = yyla.type; \
+    yyla.type = yytranslate_(token); \
+} while (false)
+
 #define CYERR(location, message) do { \
     error(location, message); \
     YYABORT; \
@@ -252,13 +261,11 @@ type; })
 %token SlashRight "/>"
 %token LeftSlash "</"
 
-%token ColonColon "::"
 %token PeriodPeriod ".."
 @end
 
 @begin E4X ObjectiveC
 %token At "@"
-%token Pound "#"
 @end
 
 %token Ampersand "&"
@@ -304,9 +311,11 @@ type; })
 %token Tilde "~"
 
 %token Colon ":"
+%token ColonColon "::"
 %token Comma ","
 %token Question "?"
 %token SemiColon ";"
+%token Pound "#"
 %token NewLine "\n"
 %token __ ""
 
@@ -434,6 +443,7 @@ type; })
 %token _synchronized_ "synchronized"
 %token _throws_ "throws"
 %token _transient_ "transient"
+%token _typeid_ "typeid"
 %token _volatile_ "volatile"
 %token _yield_ "yield"
 %token _yield__ "!yield"
@@ -494,6 +504,8 @@ type; })
 %type <binding_> BindingElement
 %type <expression_> BitwiseORExpression
 %type <expression_> BitwiseXORExpression
+%type <target_> BracedExpression_
+%type <target_> BracedExpression
 %type <statement_> BreakStatement
 %type <statement_> BreakableStatement
 %type <expression_> CallExpression_
@@ -614,9 +626,7 @@ type; })
 %type <bool_> RegularExpressionSlash
 %type <expression_> RelationalExpression
 %type <statement_> ReturnStatement
-%type <target_> RubyBlockExpression_
-%type <target_> RubyBlockExpression
-%type <rubyProc_> RubyProcExpression
+%type <braced_> BracedParameter
 %type <functionParameter_> RubyProcParameterList_
 %type <functionParameter_> RubyProcParameterList
 %type <functionParameter_> RubyProcParameters
@@ -650,6 +660,7 @@ type; })
 %type <statement_> VariableStatement
 %type <statement_> WithStatement
 %type <word_> Word
+%type <word_> WordNoUnary
 @begin ObjectiveC
 %type <word_> WordOpt
 @end
@@ -677,9 +688,10 @@ type; })
 %type <typedIdentifier_> TypedIdentifierMaybe
 %type <typedIdentifier_> TypedIdentifierNo
 %type <typedIdentifier_> TypedIdentifierYes
-%type <typedParameter_> TypedParameterList_
-%type <typedParameter_> TypedParameterList
-%type <typedParameter_> TypedParameterListOpt
+%type <typedFormal_> TypedParameterList_
+%type <typedFormal_> TypedParameterList
+%type <typedFormal_> TypedParameterListOpt
+%type <typedParameter_> TypedParameters
 @end
 
 @begin ObjectiveC
@@ -739,6 +751,9 @@ type; })
 /* Token Priorities {{{ */
 %nonassoc "if"
 %nonassoc "else"
+
+%nonassoc ":"
+%nonassoc "!yield"
 /* }}} */
 
 %start Program
@@ -771,11 +786,11 @@ LexPushYieldOff: { driver.yield_.push(false); };
 LexPopYield: { driver.yield_.pop(); };
 
 LexNewLineOrOpt
-    : { CYLEX(); if (driver.hold_ != empty_symbol) CYERR(@$, "unexpected hold"); if (driver.newline_) { driver.hold_ = yyla.type; yyla.type = yytranslate_(cy::parser::token::NewLine); } }
+    : { CYLEX(); if (driver.newline_) { CYHLD(@$, tk::NewLine); } }
     ;
 
 LexNewLineOrNot
-    : { CYLEX(); if (driver.hold_ != empty_symbol) CYERR(@$, "unexpected hold"); driver.hold_ = yyla.type; yyla.type = yytranslate_(driver.newline_ ? cy::parser::token::NewLine : cy::parser::token::__); }
+    : { CYLEX(); CYHLD(@$, driver.newline_ ? tk::NewLine : tk::__); }
     ;
 
 LexNoStar
@@ -812,7 +827,7 @@ IdentifierName
     | "instanceof" { $$ = CYNew CYWord("instanceof"); }
     ;
 
-Word
+WordNoUnary
     : IdentifierNoOf[pass] { $$ = $pass; }
     | "break" { $$ = CYNew CYWord("break"); }
     | "case" { $$ = CYNew CYWord("case"); }
@@ -823,7 +838,6 @@ Word
     | "continue" { $$ = CYNew CYWord("continue"); }
     | "debugger" { $$ = CYNew CYWord("debugger"); }
     | "default" { $$ = CYNew CYWord("default"); }
-    | "delete" { $$ = CYNew CYWord("delete"); }
     | "do" { $$ = CYNew CYWord("do"); }
     | "else" { $$ = CYNew CYWord("else"); }
     | "enum" { $$ = CYNew CYWord("enum"); }
@@ -836,7 +850,6 @@ Word
     | "import" { $$ = CYNew CYWord("import"); }
     | "!in" { $$ = CYNew CYWord("in"); }
     | "!of" { $$ = CYNew CYWord("of"); }
-    | "new" { $$ = CYNew CYWord("new"); }
     | "null" { $$ = CYNew CYWord("null"); }
     | "return" { $$ = CYNew CYWord("return"); }
     | "super" { $$ = CYNew CYWord("super"); }
@@ -845,11 +858,16 @@ Word
     | "throw" { $$ = CYNew CYWord("throw"); }
     | "true" { $$ = CYNew CYWord("true"); }
     | "try" { $$ = CYNew CYWord("try"); }
-    | "typeof" { $$ = CYNew CYWord("typeof"); }
     | "var" { $$ = CYNew CYWord("var"); }
-    | "void" { $$ = CYNew CYWord("void"); }
     | "while" { $$ = CYNew CYWord("while"); }
     | "with" { $$ = CYNew CYWord("with"); }
+    ;
+
+Word
+    : WordNoUnary[pass] { $$ = $pass; }
+    | "delete" { $$ = CYNew CYWord("delete"); }
+    | "typeof" { $$ = CYNew CYWord("typeof"); }
+    | "void" { $$ = CYNew CYWord("void"); }
     | "yield" { $$ = CYNew CYIdentifier("yield"); }
     ;
 
@@ -972,6 +990,7 @@ IdentifierTypeNoOf
     | "target" { $$ = CYNew CYIdentifier("target"); }
     | "throws" { $$ = CYNew CYIdentifier("throws"); }
     | "transient" { $$ = CYNew CYIdentifier("transient"); }
+    | "typeid" { $$ = CYNew CYIdentifier("typeid"); }
     | "undefined" { $$ = CYNew CYIdentifier("undefined"); }
 @begin ObjectiveC
     | "bool" { $$ = CYNew CYIdentifier("bool"); }
@@ -1215,13 +1234,13 @@ AccessExpression
     ;
 
 LeftHandSideExpression
-    : RubyBlockExpression[pass] { $$ = $pass; }
+    : BracedExpression[pass] { $$ = $pass; }
     | IndirectExpression[pass] { $$ = $pass; }
     ;
 /* }}} */
 /* 12.4 Postfix Expressions {{{ */
 PostfixExpression
-    : RubyBlockExpression[pass] { $$ = $pass; }
+    : BracedExpression[pass] { $$ = $pass; }
     | AccessExpression[lhs] LexNewLineOrOpt "++" { $$ = CYNew CYPostIncrement($lhs); }
     | AccessExpression[lhs] LexNewLineOrOpt "--" { $$ = CYNew CYPostDecrement($lhs); }
     ;
@@ -1604,7 +1623,7 @@ ForStatementInitializer
     ;
 
 ForInStatementInitializer
-    : LexLet LexOf RubyBlockExpression[pass] { $$ = $pass; }
+    : LexLet LexOf BracedExpression[pass] { $$ = $pass; }
     | LexLet LexOf IndirectExpression[pass] { $$ = $pass; }
     | LexLet LexOf Var_ LexBind ForBinding[binding] { $$ = CYNew CYForVariable($binding); }
     | ForDeclaration[pass] { $$ = $pass; }
@@ -1798,7 +1817,7 @@ GeneratorBody
 
 YieldExpression
     : "!yield" LexNewLineOrNot "\n" LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
-    | "!yield" LexNewLineOrNot "" LexNoStar LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
+    | "!yield" LexNewLineOrNot "" LexNoStar LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ } %prec "!yield"
     | "!yield" LexNewLineOrNot "" LexNoStar AssignmentExpression[value] { CYNOT(@$); /* $$ = CYNew CYYieldValue($value); */ }
     | "!yield" LexNewLineOrNot "" LexNoStar LexOf "yield *" AssignmentExpression[generator] { CYNOT(@$); /* $$ = CYNew CYYieldGenerator($generator); */ }
     ;
@@ -2026,12 +2045,12 @@ ParameterModifierOpt
     ;
 
 ParameterTail
-    : TypedParameterListOpt[parameters] ")" ParameterModifierOpt { $$ = CYNew CYTypeFunctionWith($parameters); }
+    : TypedParameterListOpt[formal] ")" ParameterModifierOpt { $$ = CYNew CYTypeFunctionWith($formal->variadic_, $formal->parameters_); }
     ;
 
 SuffixedType
     : SuffixedTypeOpt[typed] "[" RestrictOpt NumericLiteral[size] "]" { $$ = $typed; $$->modifier_ = CYNew CYTypeArrayOf($size, $$->modifier_); }
-    | "(" "^" TypeQualifierRightOpt[typed] ")" "(" TypedParameterListOpt[parameters] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypeBlockWith($parameters, $$->modifier_); }
+    | "(" "^" TypeQualifierRightOpt[typed] ")" "(" TypedParameters[parameters] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypeBlockWith($parameters, $$->modifier_); }
     | TypeSignifier[typed] "(" ParameterTail[modifier] { $$ = $typed; CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
     | "("[parenthesis] ParameterTail[modifier] { $$ = CYNew CYTypedIdentifier(@parenthesis); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
     ;
@@ -2163,7 +2182,7 @@ MessageParameterList
 
 MessageParameterListOpt
     : MessageParameterList[pass] { $$ = $pass; }
-    | { $$ = NULL; }
+    | TypedParameterList_[formal] { if ($formal->variadic_) CYERR(@$, "unsupported variadic"); /*XXX*/ if ($formal->parameters_ != NULL) CYERR(@$, "temporarily unsupported"); $$ = NULL; }
     ;
 
 MessageParameters
@@ -2346,21 +2365,26 @@ MemberAccess
 /* Cycript (C): Lambda Expressions {{{ */
 TypedParameterList_
     : "," TypedParameterList[parameters] { $$ = $parameters; }
-    | { $$ = NULL; }
+    | { $$ = CYNew CYTypedFormal(false); }
     ;
 
 TypedParameterList
-    : TypedIdentifierMaybe[typed] TypedParameterList_[next] { $$ = CYNew CYTypedParameter($typed, $next); }
+    : TypedIdentifierMaybe[typed] TypedParameterList_[formal] { $$ = $formal; $$->parameters_ = CYNew CYTypedParameter($typed, $$->parameters_); }
+    | "..." { $$ = CYNew CYTypedFormal(true); }
     ;
 
 TypedParameterListOpt
     : TypedParameterList[pass] { $$ = $pass; }
-    | "void" { $$ = NULL; }
-    | { $$ = NULL; }
+    | "void" { $$ = CYNew CYTypedFormal(false); }
+    | { $$ = CYNew CYTypedFormal(false); }
+    ;
+
+TypedParameters
+    : TypedParameterListOpt[formal] { if ($formal->variadic_) CYERR(@$, "unsupported variadic"); $$ = $formal->parameters_; }
     ;
 
 PrimaryExpression
-    : "[" LexOf "&" "]" "(" TypedParameterListOpt[parameters] ")" "->" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { $$ = CYNew CYLambda($type, $parameters, $code); }
+    : "[" LexOf "&" "]" "(" TypedParameters[parameters] ")" "->" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { $$ = CYNew CYLambda($type, $parameters, $code); }
     ;
 /* }}} */
 /* Cycript (C): Structure Definitions {{{ */
@@ -2399,7 +2423,7 @@ IdentifierNoOf
     ;
 
 ExternCStatement
-    : TypedIdentifierField[typed] TerminatorHard { $$ = CYNew CYExternal(CYNew CYString("C"), $typed); }
+    : TypedIdentifierField[typed] TerminatorHard { $$ = CYNew CYExternalDefinition(CYNew CYString("C"), $typed); }
     | TypeDefinition[pass] { $$ = $pass; }
     ;
 
@@ -2413,8 +2437,16 @@ ExternC
     | ExternCStatement[pass] { $$ = $pass; }
     ;
 
+ABI
+    : StringLiteral[abi] { if (strcmp($abi->Value(), "C") != 0) CYERR(@abi, "unknown extern binding"); }
+    ;
+
 Statement__
-    : "extern" NewLineNot StringLiteral[abi] { if (strcmp($abi->Value(), "C") != 0) CYERR(@abi, "unknown extern binding"); } ExternC[pass] { $$ = $pass; }
+    : "extern" NewLineNot ABI[abi] ExternC[pass] { $$ = $pass; }
+    ;
+
+PrimaryExpression
+    : "(" LexOf "extern" NewLineOpt ABI[abi] TypedIdentifierField[typed] ")" { $$ = CYNew CYExternalExpression(CYNew CYString("C"), $typed); }
     ;
 /* }}} */
 @end
@@ -2636,16 +2668,23 @@ ComprehensionIf
     : "if" "(" AssignmentExpression[test] ")" { $$ = CYNew CYIfComprehension($test); }
     ;
 /* }}} */
-/* JavaScript FTW: Coalesce Operator {{{ */
-ConditionalExpression
-    : LogicalORExpression[test] "?" LexPushInOff LexOf ":" LexPopIn AssignmentExpression[false] { $$ = CYNew CYCondition($test, $test, $false); }
-    ;
-/* }}} */
 /* JavaScript FTW: Named Arguments {{{ */
 ArgumentList
-    : LexOf Word[tag] ":" AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument($tag, $value, $next); }
+    : LexOf WordNoUnary[tag] ":" AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument($tag, $value, $next); }
+    ;
+/* }}} */
+/* JavaScript FTW: Subscript Access {{{ */
+MemberAccess
+    : "." "[" AssignmentExpression[property] "]" { $$ = CYNew CYSubscriptMember(NULL, $property); }
     ;
 /* }}} */
+
+/* JavaScript FTW: Java "Anonymous Inner Classes" {{{ */
+BracedParameter
+    : "{" PropertyDefinitionListOpt[properties] "}" { $$ = CYNew CYExtend(NULL, $properties); }
+    ;
+/* }}} */
+
 /* JavaScript FTW: Ruby Blocks {{{ */
 RubyProcParameterList_
     : "," RubyProcParameterList[parameters] { $$ = $parameters; }
@@ -2667,22 +2706,34 @@ RubyProcParametersOpt
     | { $$ = NULL; }
     ;
 
-RubyProcExpression
-    : "{" RubyProcParametersOpt[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }
+BracedParameter
+    : ";{" RubyProcParametersOpt[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyBlock(NULL, CYNew CYRubyProc($parameters, $code)); }
     ;
 
 PrimaryExpression
     : "{" RubyProcParameters[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }
     ;
 
-RubyBlockExpression_
+BracedExpression_
     : AccessExpression[pass] LexNewLineOrOpt { $$ = $pass; }
-    | RubyBlockExpression_[lhs] RubyProcExpression[rhs] LexNewLineOrOpt { $$ = CYNew CYRubyBlock($lhs, $rhs); }
+    | BracedExpression_[lhs] { if (!$lhs->IsNew()) CYMAP(OpenBrace_, OpenBrace); } BracedParameter[rhs] LexNewLineOrOpt { $rhs->SetLeft($lhs); $$ = $rhs; }
     ;
 
-RubyBlockExpression
-    : RubyBlockExpression_[pass] "\n" { $$ = $pass; }
-    | RubyBlockExpression_[pass] { $$ = $pass; }
+BracedExpression
+    : BracedExpression_[pass] "\n" { $$ = $pass; }
+    | BracedExpression_[pass] { $$ = $pass; }
+    ;
+/* }}} */
+/* JavaScript FTW: Ruby Scopes {{{ */
+MemberAccess
+    : "::" "[" Expression[property] "]" { $$ = CYNew CYResolveMember(NULL, $property); }
+    | "::" IdentifierName[property] { $$ = CYNew CYResolveMember(NULL, CYNew CYString($property)); }
+    | "::" AutoComplete { driver.mode_ = CYDriver::AutoResolve; YYACCEPT; }
+    ;
+/* }}} */
+/* JavaScript FTW: Ruby Symbols {{{ */
+PrimaryExpression
+    : ":" Word[name] { $$ = CYNew CYSymbol($name->Word()); }
     ;
 /* }}} */