X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_hash.c;h=e6e487af6b03dcdbf180b6f89cd40be86ebc4327;hb=a83b6302f6dfe3220302e0bf36726a155b3d7cd6;hp=ed071224a37b0b62c18ff43db6695944acc2067c;hpb=220bd1d88703eede6a4891f3014708c8259b303e;p=cparser diff --git a/type_hash.c b/type_hash.c index ed07122..e6e487a 100644 --- a/type_hash.c +++ b/type_hash.c @@ -1,3 +1,22 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2009 Matthias Braun + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ #include #include @@ -17,6 +36,9 @@ #undef HashSetIterator #undef HashSet +typedef struct type_hash_iterator_t type_hash_iterator_t; +typedef struct type_hash_t type_hash_t; + /* TODO: ^= is a bad way of combining hashes since most addresses are very * similar */ @@ -36,7 +58,12 @@ static unsigned hash_atomic_type(const atomic_type_t *type) static unsigned hash_pointer_type(const pointer_type_t *type) { - return hash_ptr(type->points_to); + return hash_ptr(type->points_to) ^ hash_ptr(type->base_variable); +} + +static unsigned hash_reference_type(const reference_type_t *type) +{ + return hash_ptr(type->refers_to); } static unsigned hash_array_type(const array_type_t *type) @@ -46,27 +73,28 @@ static unsigned hash_array_type(const array_type_t *type) static unsigned hash_compound_type(const compound_type_t *type) { - return hash_ptr(type->declaration); + return hash_ptr(type->compound); } -static unsigned hash_type(const type_t *type); - static unsigned hash_function_type(const function_type_t *type) { unsigned result = hash_ptr(type->return_type); function_parameter_t *parameter = type->parameters; - while(parameter != NULL) { + while (parameter != NULL) { result ^= hash_ptr(parameter->type); parameter = parameter->next; } + result += type->modifiers; + result += type->linkage; + result += type->calling_convention; return result; } static unsigned hash_enum_type(const enum_type_t *type) { - return hash_ptr(type->declaration); + return hash_ptr(type->enume); } static unsigned hash_typeof_type(const typeof_type_t *type) @@ -77,22 +105,15 @@ static unsigned hash_typeof_type(const typeof_type_t *type) return result; } -static unsigned hash_bitfield_type(const bitfield_type_t *type) -{ - unsigned result = hash_ptr(type->base); - result ^= 27172145; - - return result; -} - static unsigned hash_type(const type_t *type) { unsigned hash = 0; - switch(type->kind) { - case TYPE_INVALID: - panic("internalizing void or invalid types not possible"); + switch (type->kind) { + case TYPE_ERROR: return 0; + case TYPE_IMAGINARY: + case TYPE_COMPLEX: case TYPE_ATOMIC: hash = hash_atomic_type(&type->atomic); break; @@ -109,21 +130,18 @@ static unsigned hash_type(const type_t *type) case TYPE_POINTER: hash = hash_pointer_type(&type->pointer); break; + case TYPE_REFERENCE: + hash = hash_reference_type(&type->reference); + break; case TYPE_ARRAY: hash = hash_array_type(&type->array); break; - case TYPE_BUILTIN: - hash = hash_ptr(type->builtin.symbol); - break; case TYPE_TYPEDEF: - hash = hash_ptr(type->typedeft.declaration); + hash = hash_ptr(type->typedeft.typedefe); break; case TYPE_TYPEOF: hash = hash_typeof_type(&type->typeoft); break; - case TYPE_BITFIELD: - hash = hash_bitfield_type(&type->bitfield); - break; } unsigned some_prime = 99991; @@ -133,7 +151,7 @@ static unsigned hash_type(const type_t *type) } static bool atomic_types_equal(const atomic_type_t *type1, - const atomic_type_t *type2) + const atomic_type_t *type2) { return type1->akind == type2->akind; } @@ -141,24 +159,30 @@ static bool atomic_types_equal(const atomic_type_t *type1, static bool function_types_equal(const function_type_t *type1, const function_type_t *type2) { - if(type1->return_type != type2->return_type) + if (type1->return_type != type2->return_type) + return false; + if (type1->variadic != type2->variadic) + return false; + if (type1->unspecified_parameters != type2->unspecified_parameters) return false; - if(type1->variadic != type2->variadic) + if (type1->kr_style_parameters != type2->kr_style_parameters) return false; - if(type1->unspecified_parameters != type2->unspecified_parameters) + if (type1->linkage != type2->linkage) return false; - if(type1->kr_style_parameters != type2->kr_style_parameters) + if (type1->modifiers != type2->modifiers) + return false; + if (type1->calling_convention != type2->calling_convention) return false; function_parameter_t *param1 = type1->parameters; function_parameter_t *param2 = type2->parameters; - while(param1 != NULL && param2 != NULL) { - if(param1->type != param2->type) + while (param1 != NULL && param2 != NULL) { + if (param1->type != param2->type) return false; param1 = param1->next; param2 = param2->next; } - if(param1 != NULL || param2 != NULL) + if (param1 != NULL || param2 != NULL) return false; return true; @@ -167,17 +191,31 @@ static bool function_types_equal(const function_type_t *type1, static bool pointer_types_equal(const pointer_type_t *type1, const pointer_type_t *type2) { - return type1->points_to == type2->points_to; + return type1->points_to == type2->points_to && + type1->base_variable == type2->base_variable; +} + +static bool reference_types_equal(const reference_type_t *type1, + const reference_type_t *type2) +{ + return type1->refers_to == type2->refers_to; } static bool array_types_equal(const array_type_t *type1, const array_type_t *type2) { - if(type1->element_type != type2->element_type) + if (type1->element_type != type2->element_type) return false; - if(type1->is_variable != type2->is_variable) + if (type1->is_variable != type2->is_variable) return false; - if(type1->is_static != type2->is_static) + if (type1->is_static != type2->is_static) + return false; + if (type1->size_constant != type2->size_constant) + return false; + + /* never identify vla types, because we need them for caching calculated + * sizes later in ast2firm */ + if (type1->is_vla || type2->is_vla) return false; /* TODO: compare size expressions for equality... */ @@ -185,63 +223,51 @@ static bool array_types_equal(const array_type_t *type1, return false; } -static bool builtin_types_equal(const builtin_type_t *type1, - const builtin_type_t *type2) -{ - return type1->symbol == type2->symbol; -} - static bool compound_types_equal(const compound_type_t *type1, const compound_type_t *type2) { - return type1->declaration == type2->declaration; + return type1->compound == type2->compound; } static bool enum_types_equal(const enum_type_t *type1, const enum_type_t *type2) { - return type1->declaration == type2->declaration; + return type1->enume == type2->enume; } static bool typedef_types_equal(const typedef_type_t *type1, const typedef_type_t *type2) { - return type1->declaration == type2->declaration; + return type1->typedefe == type2->typedefe; } static bool typeof_types_equal(const typeof_type_t *type1, const typeof_type_t *type2) { - if(type1->expression != type2->expression) + if (type1->expression != type2->expression) return false; - if(type1->typeof_type != type2->typeof_type) + if (type1->typeof_type != type2->typeof_type) return false; return true; } -static bool bitfield_types_equal(const bitfield_type_t *type1, - const bitfield_type_t *type2) -{ - if(type1->base != type2->base) - return false; - /* TODO: compare size expression */ - return false; -} - static bool types_equal(const type_t *type1, const type_t *type2) { - if(type1 == type2) + if (type1 == type2) return true; - if(type1->kind != type2->kind) + if (type1->kind != type2->kind) return false; - if(type1->base.qualifiers != type2->base.qualifiers) + if (type1->base.qualifiers != type2->base.qualifiers) return false; - switch(type1->kind) { - case TYPE_INVALID: + switch (type1->kind) { + case TYPE_ERROR: + /* Hmm, the error type is never equal */ return false; case TYPE_ATOMIC: + case TYPE_IMAGINARY: + case TYPE_COMPLEX: return atomic_types_equal(&type1->atomic, &type2->atomic); case TYPE_ENUM: return enum_types_equal(&type1->enumt, &type2->enumt); @@ -252,16 +278,14 @@ static bool types_equal(const type_t *type1, const type_t *type2) return function_types_equal(&type1->function, &type2->function); case TYPE_POINTER: return pointer_types_equal(&type1->pointer, &type2->pointer); + case TYPE_REFERENCE: + return reference_types_equal(&type1->reference, &type2->reference); case TYPE_ARRAY: return array_types_equal(&type1->array, &type2->array); - case TYPE_BUILTIN: - return builtin_types_equal(&type1->builtin, &type2->builtin); case TYPE_TYPEOF: return typeof_types_equal(&type1->typeoft, &type2->typeoft); case TYPE_TYPEDEF: return typedef_types_equal(&type1->typedeft, &type2->typedeft); - case TYPE_BITFIELD: - return bitfield_types_equal(&type1->bitfield, &type2->bitfield); } abort(); @@ -286,6 +310,7 @@ static bool types_equal(const type_t *type1, const type_t *type2) #define hashset_iterator_init typehash_iterator_init #define hashset_iterator_next typehash_iterator_next #define hashset_remove_iterator typehash_remove_iterator +#define SCALAR_RETURN #include "adt/hashset.c"