* [PATCH] [RFC] C++1x support for cc-mode
@ 2010-01-15 16:24 Daniel Colascione
0 siblings, 0 replies; only message in thread
From: Daniel Colascione @ 2010-01-15 16:24 UTC (permalink / raw)
To: Alan Mackenzie; +Cc: Emacs development discussions
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Hash: SHA1
Here is a *very* rough patch that halfway implements most of the new
language constructs. I've also included a small test file, though
I'm sure there are some cases, especially around vararg-template and
attribute syntax, that don't work yet.
The test file is marked with 'XXX' to indicate things that don't yet work.
A few questions:
- - How can I get this to be recognized as a function definition?
foo() -> int { return 42; }
- - How can I fontify static_assert only when there are parens?
GOOD: static_assert(true)
BAD: static_assert true
(In this respect, static_assert is unlike sizeof.)
- - Angle bracket rule has changed. What's the best way to effect that?
- - Raw strings ?! The best thing I can think of is an entirely separate
fontification pass for them.
- - operator "" (yes, really). I'm having a hard time figuring
out where I need to special-case it though. It looks like this:
some_type operator"" special_suffix()
diff --unidirectional-new-file -wur
/Users/danielcolascione/software/emacs/lisp/progmodes/c++0x-test.cpp
./c++0x-test.cpp
- ---
/Users/danielcolascione/software/emacs/lisp/progmodes/c++0x-test.cpp
1969-12-31 19:00:00.000000000 -0500
+++ ./c++0x-test.cpp 2010-01-15 11:20:26.000000000 -0500
@@ -0,0 +1,436 @@
+/* Examples (mostly) from Wikipedia */
+
+int GetFive() {return 5;}
+
+int some_value[GetFive() + 7]; //create an array of 12 integers.
illegal C++
+
+constexpr int GetFive() {return 5;}
+
+int some_value[GetFive() + 7]; //create an array of 12 integers. legal
C++0x
+
+constexpr double accelerationOfGravity = 9.8;
+constexpr double moonGravity = accelerationOfGravity / 6;
+
+template class std::vector<MyClass>;
+
+extern template class std::vector<MyClass>;
+
+class SequenceClass
+{
+public:
+ SequenceClass(std::initializer_list<int> list);
+};
+
+SequenceClass someVar = {1, 4, 5, 6};
+
+void FunctionName(std::initializer_list<float> list);
+
+FunctionName({1.0f, -3.45f, -0.4f});
+
+std::vector<std::string> v = { "xyzzy", "plugh", "abracadabra" };
+std::vector<std::string> v{ "xyzzy", "plugh", "abracadabra" };
+
+struct BasicStruct
+{
+ int x;
+ double y;
+};
+
+struct AltStruct
+{
+ AltStruct(int x, double y) : x_{x}, y_{y} {}
+
+private:
+ int x_;
+ double y_;
+};
+
+BasicStruct var1(5,
+ 3.2);
+
+BasicStruct var1{5,
+ // XXX: should be arglist-cont-nonempty because this is
+ // actually a function call
+ 3.2};
+AltStruct var2{2, 4.3};
+
+struct IdString
+{
+ std::string name;
+ int identifier;
+};
+
+IdString GetString()
+{
+ return {"SomeName", 4}; //Note the lack of explicit type.
+}
+
+std::vector<int> theVec{4};
+
+auto someStrangeCallableType = boost::bind(&SomeFunction, _2, _1,
someObject);
+auto otherVariable = 5;
+
+int someInt;
+
+// XXX: otherIntegerVariable should be fontified as a variable
+decltype(someInt) otherIntegerVariable = 5;
+
+// longstanding GNU extension
+typeof(blah(sda[a])) f = 5;
+
+for (vector<int>::const_iterator itr = myvec.begin(); itr !=
myvec.end(); ++itr)
+{}
+
+for (auto itr = myvec.begin(); itr != myvec.end(); ++itr)
+{}
+
+#include <vector>
+int main()
+{
+ const std::vector<int> v(1);
+ auto a = v[0]; // a has type int
+ decltype(v[0]) b = 1; // b has type const int&, the return type of
+ // std::vector<int>::operator[](size_type) const
+ auto c = 0; // c has type int
+ auto d = c; // d has type int
+ decltype(c) e; // e has type int, the type of the entity named
by c
+ decltype((c)) f = c; // f has type int&, because (c) is an lvalue
+ decltype(0) g; // g has type int, because 0 is an rvalue
+ // ^ - XXX fontify as variable
+}
+
+int&& x = 5;
+
+int my_array[5] = {1, 2, 3, 4, 5};
+for(int &x : my_array)
+{
+ x *= 2;
+}
+
+void lambra_functions_here() {
+ [](int x, int y) { return x + y; }
+
+ [](int x, int y) -> int {
+ int z = x + y;
+ return z + x;
+ }
+
+ std::vector<int> someList;
+ int total = 0;
+ // XXX XXX Fontify as function param ----+
+ // |
+ // V
+ std::for_each(someList.begin(), someList.end(), [&total](int x) {
+ total += x;
+ });
+ std::cout << total;
+
+ std::vector<int> someList;
+ int total = 0;
+ std::for_each(someList.begin(), someList.end(), [&](int x) {
+ total += x;
+ });
+
+ int total = 0;
+ int value = 5;
+ [&, value](int x) { total += (x * value); };
+
+ // XXX --+-- fontify as function parameter
+ // |
+ // V
+ [](SomeType *typePtr) { typePtr->SomePrivateMemberFunction(); }
+
+ auto myLambdaFunc = [this]() { this->SomePrivateMemberFunction(); };
+}
+
+/* Alternative function syntax */
+
+template< typename LHS, typename RHS>
+Ret AddingFunc(const LHS &lhs, const RHS &rhs) {return lhs + rhs;}
+//Ret must be the type of lhs+rhs
+
+template< typename LHS, typename RHS>
+auto AddingFunc(const LHS &lhs, const RHS &rhs) ->
+ decltype(lhs+rhs) {return lhs + rhs;}
+
+auto foo() -> int { return 42; }
+
+auto SomeType() -> blarg() {}
+
+class SomeType
+{
+ int number;
+
+ public:
+ SomeType(int newNumber) : number(newNumber) {}
+ SomeType() : SomeType(42) {}
+};
+
+class BaseClass
+{
+ public:
+ BaseClass(int iValue);
+};
+
+class DerivedClass : public BaseClass
+{
+ public:
+ using BaseClass::BaseClass;
+};
+
+class SomeClass
+{
+public:
+ SomeClass() {}
+ explicit SomeClass(int iNewValue) : iValue(iNewValue) {}
+
+private:
+ int iValue = 5;
+};
+
+
+
+struct Test {};
+
+class B : public Test
+{
+ typedef B self;
+ virtual void some_func1();
+ virtual void some_func2(float);
+ virtual void some_func3() const;
+ virtual long some_func4(int);
+ virtual void f();
+ virtual void h(int);
+ void j(int);
+ void k(int);
+};
+
+// XXX: Why isn't B fontified? We're skipping the attribute.
+// |
+// V
+class D [[base_check]] : public B
+{
+ using B::j;
+ void sone_func1 [[override]] (); // ill-formed: mis-spelled name
+ void some_func2 [[override]] (double); // ill-formed: bad argument type
+ void some_func3 [[override]] (); // ill-formed: missing cv-qualification
+ int some_func4 [[override]] (int); // ill-formed: return type does
not match B::some_func4
+ virtual void f [[override]] (); // OK: overrides B::f
+ virtual void g(long); // new virtual function introduced
+ void h(int); // ill-formed: overriding without [[override]]
+ virtual void h(double); // ill-formed: new virtual function hides
void h(int)
+ virtual void h [[hiding]] (char *); // OK, new virtual function
hides base
+ virtual int j( double ); // OK, using declaration
prevents hiding
+ int k( double ); // ill-formed: name hiding and no using
declaration
+ double k [[hiding]] ( char * ); // OK, hiding is clearly indicated
+ double m [[hiding]] ( char * ); // ill-formed, hiding is requested,
but not present
+ typedef D self; // ill-formed, new type definition hides the
definition in B
+};
+
+[[ vendor()::crap[] ]] int x;
+
+char* pc = nullptr; // OK
+int * pi = nullptr; // OK
+bool b = nullptr; // OK. b is false.
+int i = nullptr; // error
+
+foo(nullptr); // calls foo(char *), not foo(int);
+
+enum class Enumeration
+{
+ Val1,
+ Val2,
+ Val3 = 100,
+ Val4 /* = 101 */
+};
+
+enum class Enum2 : unsigned int {Val1, Val2};
+
+enum Enum3 : unsigned long {Val1 = 1, Val2};
+
+enum Enum2 : unsigned int; //Legal in C++0x.
+enum class Enum3; //Legal in C++0x, because enum class
+ //declarations have a default type of
+ //"int".
+enum class Enum4: unsigned int; //Legal C++0x.
+
+/*
+ * XXX: doesn't work. Commented out to avoid breakage
+ *
+template<bool bTest> class SomeType;
+std::vector<SomeType<1>2>> x1 ; // Interpreted as a std::vector of
SomeType<true> 2>,
+// which is not legal syntax. 1 is true.
+std::vector<SomeType<(1>2)>> x1 ; // Interpreted as std::vector of
SomeType<false>,
+//which is legal C++0x syntax. (1>2) is false.
+*/
+
+
+template< typename first, typename second, int third>
+class SomeType;
+
+template< typename second>
+using TypedefName = SomeType<OtherType, second, 5>;
+
+typedef void (*PFD)(double); // Old style
+using PF = void (*)(double); // New introduced syntax
+
+struct point
+{
+ point() {}
+ point(int x, int y): x_(x), y_(y) {}
+ int x_, y_;
+};
+union
+{
+ int z;
+ double w;
+ point p; // Illegal in C++; point has a non-trivial constructor.
+ // However, this is legal in C++0x.
+};
+
+
+template<typename... Values> class tuple;
+
+class tuple<int, std::vector<int>, std::map<std::string,
std::vector<int>> >
+ someInstanceName;
+
+template<typename First, typename... Rest> class tuple;
+
+template<typename... Params> void printf(const std::string &strFormat,
+ Params... parameters);
+
+
+void printf(const char *s)
+{
+ while (*s)
+ {
+ if (*s == '%' && *(++s) != '%')
+ throw std::runtime_error("invalid format string: missing arguments");
+ std::cout << *s++;
+ }
+}
+
+template<typename T, typename... Args>
+void printf(const char* s, T value, Args&&... args)
+{
+ while (*s)
+ {
+ if (*s == '%' && *(++s) != '%')
+ {
+ std::cout << value;
+ printf(s, args...); // call even when *s == 0 to detect extra
arguments
+ return;
+ }
+ std::cout << *s++;
+ }
+ throw std::logic_error("extra arguments provided to printf");
+}
+
+template <typename... BaseClasses>
+class ClassName : public BaseClasses...
+{
+ public:
+ ClassName (BaseClasses&& ... baseClasses)
+ : BaseClasses(baseClasses)... {}
+
+};
+
+
+template<typename ...TypeToConstruct>
+struct SharedPtrAllocator
+{
+ template<typename... Args> std::shared_ptr<TypeToConstruct>
+ ConstructWithSharedPtr(Args&& ...params)
+ {
+ return std::shared_ptr<TypeToConstruct>(
+ new TypeToConstruct(std::forward<Args>(params)..., int test));
+ }
+};
+
+
+template<typename ...Args> struct SomeStruct
+{
+ static const int size = sizeof...(Args);
+}
+
+u8"I'm a UTF-8 string."
+u"This is a UTF-16 string."
+U"This is a UTF-32 string."
+
+u8"This is a Unicode Character: \u2018."
+u"This is a bigger Unicode Character: \u2018."
+U"This is a Unicode Character: \u2018."
+
+/* XXX hopelessly broken */
+
+/*
+R"[The String Data \ Stuff " ]"
+R"delimiter[The String Data \ Stuff " ]delimiter"
+
+u8R"XXX[I'm a "raw UTF-8" string.]XXX"
+uR"*@[This is a "raw UTF-16" string.]*@"
+UR"[This is a "raw UTF-32" string.]"
+*/
+
+//* XXX: probably needs special treatment to override default string
+//* syntax
+// |
+// V
+OutputType operator "" _Suffix(const char *literal_string);
+
+OutputType someVariable = "1234"_Suffix;
+
+template<char...> OutputType operator "" _Suffix();
+
+OutputType someVariable = "1234"_Suffix;
+
+OutputType operator "" _Suffix(unsigned long long);
+OutputType operator "" _Suffix(long double);
+
+OutputType someVariable = 1234_Suffix; // uses the first function
+OutputType anotherVariable = 3.1416_Suffix; // uses the second function
+
+
+OutputType operator "" _Suffix(unsigned long long);
+OutputType operator "" _Suffix(long double);
+
+OutputType someVariable = 1234_Suffix; // uses the first function
+OutputType anotherVariable = 3.1416_Suffix; // uses the second function
+
+struct SomeType
+{
+ SomeType() = default; //The default constructor is explicitly stated.
+ SomeType(OtherType value);
+};
+
+struct NonCopyable
+{
+ NonCopyable & operator=(const NonCopyable&) = delete;
+ NonCopyable(const NonCopyable&) = delete;
+ NonCopyable() = default;
+};
+
+struct NonNewable
+{
+ void *operator new(std::size_t) = delete;
+};
+
+struct NoDouble
+{
+ void f(int i);
+ void f(double) = delete;
+};
+
+struct OnlyInt
+{
+ void f(int i);
+ template<class T> void f(T) = delete;
+};
+
+
+struct SomeType { OtherType member; };
+
+sizeof(SomeType::member); //Does not work with C++03. Okay with C++0x
+
+/* End test file */
+
diff --unidirectional-new-file -wur
/Users/danielcolascione/software/emacs/lisp/progmodes/c++0x-test2.cpp
./c++0x-test2.cpp
- ---
/Users/danielcolascione/software/emacs/lisp/progmodes/c++0x-test2.cpp
1969-12-31 19:00:00.000000000 -0500
+++ ./c++0x-test2.cpp 2010-01-15 11:01:17.000000000 -0500
@@ -0,0 +1,3 @@
+void printf(const char* s, int& *p, int x,
+ Args&& ...args, int ss);
+
diff --unidirectional-new-file -wur
/Users/danielcolascione/software/emacs/lisp/progmodes/cc-engine.el
./cc-engine.el
- --- /Users/danielcolascione/software/emacs/lisp/progmodes/cc-engine.el
2010-01-14 18:06:46.000000000 -0500
+++ ./cc-engine.el 2010-01-15 11:05:50.000000000 -0500
@@ -4664,6 +4664,7 @@
(when (and cfd-match-pos (< cfd-match-pos syntactic-pos))
(goto-char syntactic-pos)
(c-forward-syntactic-ws)
+ (c-skip-c++-attributes)
(and cfd-continue-pos
(< cfd-continue-pos (point))
(setq cfd-token-pos (point))))
@@ -5238,8 +5239,8 @@
(forward-char)
(unless (looking-at c-<-op-cont-regexp)
(while (and
- - (progn
+ (progn
(when c-record-type-identifiers
(if all-types
@@ -5454,6 +5455,42 @@
(/= (point) start))))
+(defun c-skip-variadic-dots ()
+ ;; Move forward over a C++ three-dot form if point is at one.
+ ;;
+ ;; Return true off we found and skipped a variadic template dots.
+ (when (and (c-lang-const c-dots-everywhere)
+ (looking-at "\\.\\.\\."))
+ (goto-char (match-end 0))
+ (c-forward-syntactic-ws)
+ t))
+
+(defun c-skip-c++-attributes ()
+ ;; Skip one N2761 C++1x attribute declaration if point is at one,
+ ;; returning true iff we actually found and skipped one.
+ (and (c-major-mode-is 'c++-mode)
+ (eq (char-after) ?\[)
+ (save-excursion
+ (forward-char)
+ (c-forward-syntactic-ws)
+ (eq (char-after) ?\[))
+ (or (ignore-errors
+ (c-forward-sexp)
+ (c-forward-syntactic-ws))
+ ;; DTRT on failure?
+ (end-of-line))))
+
+(defun c-skip-c++-crud ()
+ ;; Skip declarational C++ crud that doesn't matter for
+ ;; our parsing.
+ ;;
+ ;; XXX sometimes we shouldn't accept ... before a type intro, but
+ ;; that requires detecting whether we're in a header.
+ ;;
+ (while (or (c-skip-c++-attributes)
+ (c-skip-variadic-dots))))
+
+
(defun c-forward-name ()
;; Move forward over a complete name if at the beginning of one,
;; stopping at the next following token. If the point is not at
@@ -5482,6 +5519,9 @@
;; the caller only wants the top level type that it finds to
;; be promoted.
c-promote-possible-types)
+
+ (c-skip-c++-crud)
+
(while
(and
(looking-at c-identifier-key)
@@ -5528,7 +5568,7 @@
;; '*', '&' or a name followed by ":: *",
;; where each can be followed by a sequence
;; of `c-opt-type-modifier-key'.
- - (while (cond ((looking-at "[*&]")
+ (while (cond ((looking-at "[*&]\\|&&")
(goto-char (match-end 0))
t)
((looking-at c-identifier-start)
@@ -5617,6 +5657,9 @@
)))))
(goto-char pos)
+
+ (c-skip-c++-crud)
+
res))
(defun c-forward-type ()
@@ -5642,6 +5685,8 @@
(let ((start (point)) pos res name-res id-start id-end id-range)
+ (c-skip-c++-attributes)
+
;; Skip leading type modifiers. If any are found we know it's a
;; prefix of a type.
(when c-opt-type-modifier-key
@@ -5656,6 +5701,8 @@
;; e.g. "class".
(goto-char (match-end 1))
(c-forward-syntactic-ws)
+ (c-skip-c++-crud)
+
(setq pos (point))
(if (memq (setq name-res (c-forward-name)) '(t template))
(progn
@@ -5671,6 +5718,23 @@
(goto-char start)
(setq res nil)))
+ ((and (c-major-mode-is 'c++-mode)
+ (looking-at "\\(typeof\\|decltype\\)\\_>"))
+ (goto-char (match-end 0))
+ (c-forward-syntactic-ws)
+ (c-skip-c++-crud)
+ (if (not (eq (char-after) ?\())
+ ;; Invalid syntax
+ (progn
+ (goto-char start)
+ (setq res nil))
+
+ ;; We found a type, but there's nothing to record
+ (c-forward-sexp)
+ (c-forward-syntactic-ws)
+ (c-skip-c++-crud)
+ (setq res t)))
+
((progn
(setq pos nil)
(if (looking-at c-identifier-start)
@@ -5830,6 +5894,8 @@
(goto-char pos))))
+ (c-skip-c++-crud)
+
(when (and c-record-found-types (memq res '(known found)) id-range)
(setq c-record-found-types
(cons id-range c-record-found-types))))
@@ -6219,7 +6285,8 @@
(setq got-prefix-before-parens (= paren-depth 0)))
(setq got-prefix t)
(goto-char (match-end 1)))
- - (c-forward-syntactic-ws))
+ (c-forward-syntactic-ws)
+ (c-skip-c++-crud))
(setq got-parens (> paren-depth 0))
@@ -7027,6 +7094,7 @@
(c-with-syntax-table c++-template-syntax-table
(c-backward-token-2 0 t lim)
(while (and (or (looking-at c-symbol-start)
+ (looking-at "\\.\\.\\.")
(looking-at "[<,]\\|::"))
(zerop (c-backward-token-2 1 t lim))))))
diff --unidirectional-new-file -wur
/Users/danielcolascione/software/emacs/lisp/progmodes/cc-fonts.el
./cc-fonts.el
- --- /Users/danielcolascione/software/emacs/lisp/progmodes/cc-fonts.el
2009-12-04 00:44:40.000000000 -0500
+++ ./cc-fonts.el 2010-01-15 11:06:26.000000000 -0500
@@ -876,7 +876,8 @@
(setq paren-depth (1+ paren-depth))
(forward-char))
(goto-char (match-end 1)))
- - (c-forward-syntactic-ws))
+ (c-forward-syntactic-ws)
+ (c-skip-c++-crud))
;; If we didn't pass the identifier above already, do it now.
(unless got-identifier
@@ -893,8 +894,11 @@
(<= (point) limit)
(progn
+ (c-skip-c++-crud)
+
(when (looking-at c-decl-hangon-key)
(c-forward-keyword-clause 1))
+ (c-skip-c++-crud)
(<= (point) limit))
;; Search syntactically to the end of the declarator (";",
@@ -1217,6 +1221,21 @@
nil)))
+(defun c-font-lock-c++-attributes (limit)
+ ;; fontify new C++ attributes syntax. Need a function instead of a
+ ;; declaration because the things can have arbitrarily nested
+ ;; parenthesis
+ (while (and
+ (c-syntactic-re-search-forward "\\[\\s-*\\[" limit t nil t)
+ (ignore-errors
+ (goto-char (match-beginning 0))
+ (setq beg (point))
+ (c-forward-sexp)
+ (c-put-font-lock-face (match-beginning 0) (point)
+ 'font-lock-keyword-face)
+ t)))
+ nil)
+
(c-lang-defconst c-simple-decl-matchers
"Simple font lock matchers for types and declarations. These are used
on level 2 only and so aren't combined with `c-complex-decl-matchers'."
@@ -1320,6 +1339,9 @@
'c-type 'c-decl-end)))
c-font-lock-objc-methods))
+ ,(if (c-major-mode-is 'c++-mode)
+ 'c-font-lock-c++-attributes)
+
;; Fontify all declarations, casts and normal labels.
c-font-lock-declarations
diff --unidirectional-new-file -wur
/Users/danielcolascione/software/emacs/lisp/progmodes/cc-langs.el
./cc-langs.el
- --- /Users/danielcolascione/software/emacs/lisp/progmodes/cc-langs.el
2009-12-04 00:44:40.000000000 -0500
+++ ./cc-langs.el 2010-01-15 11:08:57.000000000 -0500
@@ -849,7 +849,8 @@
;; Unary.
(prefix "++" "--" "+" "-" "!" "~"
- - ,@(when (c-major-mode-is 'c++-mode) '("not" "compl"))
+ ,@(when (c-major-mode-is 'c++-mode)
+ '("not" "compl" "static_assert" "&&"))
,@(when (c-major-mode-is '(c-mode c++-mode))
'("*" "&" "sizeof" "??-"))
,@(when (c-major-mode-is 'objc-mode)
@@ -1009,7 +1010,7 @@
"::" "...")
(c-lang-const c-other-op-syntax-tokens))
(c c++) (append '("*") (c-lang-const c-other-op-syntax-tokens))
- - c++ (append '("&" "<%" "%>" "<:" ":>" "%:" "%:%:")
+ c++ (append '("&" "&&" "<%" "%>" "<:" ":>" "%:" "%:%:")
(c-lang-const c-other-op-syntax-tokens))
objc (append '("#" "##" ; Used by cpp.
"+" "-") (c-lang-const c-other-op-syntax-tokens))
@@ -1492,7 +1493,7 @@
'("_Bool" "_Complex" "_Imaginary") ; Conditionally defined in C99.
(c-lang-const c-primitive-type-kwds))
c++ (append
- - '("bool" "wchar_t")
+ '("auto" "bool" "wchar_t")
(c-lang-const c-primitive-type-kwds))
;; Objective-C extends C, but probably not the new stuff in C99.
objc (append
@@ -1551,7 +1552,7 @@
not the type face."
t nil
c '("const" "restrict" "volatile")
- - c++ '("const" "volatile" "throw")
+ c++ '("const" "volatile" "throw" "constexpr" )
objc '("const" "volatile"))
(c-lang-defconst c-opt-type-modifier-key
@@ -1727,9 +1728,10 @@
`c-<>-type-kwds', or `c-<>-arglist-kwds' then the associated clauses
will be handled."
t nil
- - (c c++) '("auto" "extern" "inline" "register" "static")
- - c++ (append '("explicit" "friend" "mutable" "template" "using"
"virtual")
- - (c-lang-const c-modifier-kwds))
+ c '("extern" "inline" "register" "static" "auto")
+ c++ '("extern" "inline" "register" "static"
+ "explicit" "friend" "mutable" "template"
+ "using" "virtual")
objc '("auto" "bycopy" "byref" "extern" "in" "inout" "oneway" "out"
"static")
;; FIXME: Some of those below ought to be on `c-other-decl-kwds' instead.
idl '("abstract" "attribute" "const" "consumes" "custom" "emits"
"import"
@@ -1800,7 +1802,9 @@
(c c++) '(;; GCC extension.
"__attribute__"
;; MSVC extension.
- - "__declspec"))
+ "__declspec"
+ ;; Standard C++ attributes handled elsewhere
+ ))
(c-lang-defconst c-decl-hangon-key
;; Adorned regexp matching `c-decl-hangon-kwds'.
@@ -1970,8 +1974,11 @@
"Keywords that may be followed by a parenthesis expression that doesn't
contain type identifiers."
t nil
- - (c c++) '(;; GCC extension.
+ (c c++) '(;; C++0x
+ "decltype"
+ ;; GCC extension.
"__attribute__"
+ "typeof"
;; MSVC extension.
"__declspec"))
@@ -2148,6 +2155,7 @@
"Keywords for constants."
t nil
(c c++) '("NULL" ;; Not a keyword, but practically works as one.
+ "nullptr"
"false" "true") ; Defined in C99.
objc '("nil" "Nil" "YES" "NO" "NS_DURING" "NS_HANDLER"
"NS_ENDHANDLER")
idl '("TRUE" "FALSE")
@@ -2588,7 +2596,13 @@
;; Allow '"' for extern clauses (e.g. extern "C" {...}).
(c c++ objc) (set-difference (c-lang-const
c-block-prefix-disallowed-chars)
- - '(?\" ?')))
+ '(?\" ?'))
+
+ ;; Allow '.' for variadic templates and '[' and ']' for the new fun
+ ;; attribute syntax.
+ (c++) (set-difference (c-lang-const c-block-prefix-disallowed-chars)
+ '(?. ?\[ ?\])))
+
(c-lang-defconst c-block-prefix-charset
;; `c-block-prefix-disallowed-chars' as an inverted charset suitable
@@ -2616,6 +2630,8 @@
"\\)"
"\\([^=]\\|$\\)")
c++ (concat "\\("
+ "&&"
+ "\\|"
"[*\(&]"
"\\|"
(concat "\\(" ; 2
@@ -2954,6 +2970,12 @@
objc t)
(c-lang-defvar c-type-decl-end-used (c-lang-const c-type-decl-end-used))
+(c-lang-defconst c-dots-everywhere
+ ;; t if '...' should be allowed in most declarations and expressions.
+ ;; Used for C++ variadic templates.
+ t nil
+ c++ t)
+
\f
;;; Wrap up the `c-lang-defvar' system.
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2010-01-15 16:24 [PATCH] [RFC] C++1x support for cc-mode Daniel Colascione
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