diff options
Diffstat (limited to 'clang/lib/Parse/AttributeList.cpp')
-rw-r--r-- | clang/lib/Parse/AttributeList.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/clang/lib/Parse/AttributeList.cpp b/clang/lib/Parse/AttributeList.cpp new file mode 100644 index 00000000000..0ff9447d2e6 --- /dev/null +++ b/clang/lib/Parse/AttributeList.cpp @@ -0,0 +1,98 @@ +//===--- AttributeList.cpp --------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines the AttributeList class implementation +// +//===----------------------------------------------------------------------===// + +#include "clang/Parse/AttributeList.h" +using namespace clang; + +AttributeList::AttributeList(IdentifierInfo *aName, SourceLocation aLoc, + IdentifierInfo *pName, SourceLocation pLoc, + Action::ExprTy **elist, unsigned numargs, + AttributeList *n) + : AttrName(aName), AttrLoc(aLoc), ParmName(pName), ParmLoc(pLoc), + NumArgs(numargs), Next(n) { + Args = new Action::ExprTy*[numargs]; + for (unsigned i = 0; i != numargs; ++i) + Args[i] = elist[i]; +} + +AttributeList::~AttributeList() { + if (Args) { + // FIXME: before we delete the vector, we need to make sure the Expr's + // have been deleted. Since Action::ExprTy is "void", we are dependent + // on the actions module for actually freeing the memory. The specific + // hooks are ActOnDeclarator, ActOnTypeName, ActOnParamDeclaratorType, + // ParseField, ParseTag. Once these routines have freed the expression, + // they should zero out the Args slot (to indicate the memory has been + // freed). If any element of the vector is non-null, we should assert. + delete [] Args; + } + delete Next; +} + +AttributeList::Kind AttributeList::getKind(const IdentifierInfo *Name) { + const char *Str = Name->getName(); + unsigned Len = Name->getLength(); + + // Normalize the attribute name, __foo__ becomes foo. + if (Len > 4 && Str[0] == '_' && Str[1] == '_' && + Str[Len - 2] == '_' && Str[Len - 1] == '_') { + Str += 2; + Len -= 4; + } + + switch (Len) { + case 4: + if (!memcmp(Str, "weak", 4)) return AT_weak; + if (!memcmp(Str, "pure", 4)) return AT_pure; + break; + case 6: + if (!memcmp(Str, "packed", 6)) return AT_packed; + if (!memcmp(Str, "malloc", 6)) return AT_malloc; + if (!memcmp(Str, "format", 6)) return AT_format; + if (!memcmp(Str, "unused", 6)) return AT_unused; + break; + case 7: + if (!memcmp(Str, "aligned", 7)) return AT_aligned; + if (!memcmp(Str, "nothrow", 7)) return AT_nothrow; + if (!memcmp(Str, "nonnull", 7)) return AT_nonnull; + if (!memcmp(Str, "stdcall", 7)) return AT_stdcall; + break; + case 8: + if (!memcmp(Str, "annotate", 8)) return AT_annotate; + if (!memcmp(Str, "noreturn", 8)) return AT_noreturn; + if (!memcmp(Str, "noinline", 8)) return AT_noinline; + if (!memcmp(Str, "fastcall", 8)) return AT_fastcall; + break; + case 9: + if (!memcmp(Str, "dllimport", 9)) return AT_dllimport; + if (!memcmp(Str, "dllexport", 9)) return AT_dllexport; + break; + case 10: + if (!memcmp(Str, "deprecated", 10)) return AT_deprecated; + if (!memcmp(Str, "visibility", 10)) return AT_visibility; + break; + case 11: + if (!memcmp(Str, "vector_size", 11)) return AT_vector_size; + break; + case 13: + if (!memcmp(Str, "address_space", 13)) return AT_address_space; + break; + case 15: + if (!memcmp(Str, "ocu_vector_type", 15)) return AT_ocu_vector_type; + break; + case 18: + if (!memcmp(Str, "warn_unused_result", 18)) return AT_warn_unused_result; + break; + } + return UnknownAttribute; +} |