forked from OSchip/llvm-project
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
//===--- AttributeList.cpp --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the AttributeList class implementation
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Parse/AttributeList.h"
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using namespace clang;
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AttributeList::AttributeList(IdentifierInfo *aName, SourceLocation aLoc,
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IdentifierInfo *pName, SourceLocation pLoc,
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Action::ExprTy **elist, unsigned numargs,
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AttributeList *n)
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: AttrName(aName), AttrLoc(aLoc), ParmName(pName), ParmLoc(pLoc),
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NumArgs(numargs), Next(n) {
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Args = new Action::ExprTy*[numargs];
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for (unsigned i = 0; i != numargs; ++i)
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Args[i] = elist[i];
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}
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AttributeList::~AttributeList() {
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if (Args) {
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// FIXME: before we delete the vector, we need to make sure the Expr's
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// have been deleted. Since Action::ExprTy is "void", we are dependent
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// on the actions module for actually freeing the memory. The specific
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// hooks are ActOnDeclarator, ActOnTypeName, ActOnParamDeclaratorType,
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// ParseField, ParseTag. Once these routines have freed the expression,
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// they should zero out the Args slot (to indicate the memory has been
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// freed). If any element of the vector is non-null, we should assert.
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delete [] Args;
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}
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delete Next;
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}
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AttributeList::Kind AttributeList::getKind(const IdentifierInfo *Name) {
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const char *Str = Name->getName();
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unsigned Len = Name->getLength();
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// Normalize the attribute name, __foo__ becomes foo.
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if (Len > 4 && Str[0] == '_' && Str[1] == '_' &&
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Str[Len - 2] == '_' && Str[Len - 1] == '_') {
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Str += 2;
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Len -= 4;
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}
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switch (Len) {
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case 4:
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if (!memcmp(Str, "weak", 4)) return AT_weak;
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if (!memcmp(Str, "pure", 4)) return AT_pure;
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if (!memcmp(Str, "mode", 4)) return AT_mode;
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break;
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case 5:
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if (!memcmp(Str, "alias", 5)) return AT_alias;
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break;
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case 6:
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if (!memcmp(Str, "packed", 6)) return AT_packed;
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if (!memcmp(Str, "malloc", 6)) return AT_malloc;
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if (!memcmp(Str, "format", 6)) return AT_format;
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if (!memcmp(Str, "unused", 6)) return AT_unused;
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break;
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case 7:
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if (!memcmp(Str, "aligned", 7)) return AT_aligned;
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if (!memcmp(Str, "nothrow", 7)) return AT_nothrow;
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if (!memcmp(Str, "nonnull", 7)) return AT_nonnull;
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if (!memcmp(Str, "stdcall", 7)) return AT_stdcall;
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break;
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case 8:
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if (!memcmp(Str, "annotate", 8)) return AT_annotate;
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if (!memcmp(Str, "noreturn", 8)) return AT_noreturn;
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if (!memcmp(Str, "noinline", 8)) return AT_noinline;
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if (!memcmp(Str, "fastcall", 8)) return AT_fastcall;
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if (!memcmp(Str, "iboutlet", 8)) return AT_IBOutlet;
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break;
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case 9:
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if (!memcmp(Str, "dllimport", 9)) return AT_dllimport;
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if (!memcmp(Str, "dllexport", 9)) return AT_dllexport;
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break;
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case 10:
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if (!memcmp(Str, "deprecated", 10)) return AT_deprecated;
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if (!memcmp(Str, "visibility", 10)) return AT_visibility;
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break;
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case 11:
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if (!memcmp(Str, "vector_size", 11)) return AT_vector_size;
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break;
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case 13:
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if (!memcmp(Str, "address_space", 13)) return AT_address_space;
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break;
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case 15:
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if (!memcmp(Str, "ext_vector_type", 15)) return AT_ext_vector_type;
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break;
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case 17:
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if (!memcmp(Str, "transparent_union", 17)) return AT_transparent_union;
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break;
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case 18:
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if (!memcmp(Str, "warn_unused_result", 18)) return AT_warn_unused_result;
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break;
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}
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return UnknownAttribute;
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}
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