X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=entity.c;h=528e3a15d949cc11fe4a8a2f23a4736bf683d0d3;hb=9bf914ca0a1473ee629d30d8a6a65cfbd633712b;hp=c5c2e0820bbea730387900f48066d44b08520db9;hpb=6d7d61de445629e1590d3a2ba2990ef7a651368a;p=cparser

diff --git a/entity.c b/entity.c
index c5c2e08..528e3a1 100644
--- a/entity.c
+++ b/entity.c
@@ -19,8 +19,13 @@
  */
 #include <config.h>
 
+#include <assert.h>
+
 #include "entity_t.h"
+#include "ast_t.h"
 #include "adt/error.h"
+#include "adt/util.h"
+#include "adt/strutil.h"
 
 const char *get_entity_kind_name(entity_kind_t kind)
 {
@@ -29,6 +34,7 @@ const char *get_entity_kind_name(entity_kind_t kind)
 	case ENTITY_VARIABLE:        return "variable";
 	case ENTITY_PARAMETER:       return "parameter";
 	case ENTITY_COMPOUND_MEMBER: return "compound member";
+	case ENTITY_CLASS:           return "class";
 	case ENTITY_STRUCT:          return "struct";
 	case ENTITY_UNION:           return "union";
 	case ENTITY_ENUM:            return "enum";
@@ -37,8 +43,74 @@ const char *get_entity_kind_name(entity_kind_t kind)
 	case ENTITY_LOCAL_LABEL:     return "local label";
 	case ENTITY_TYPEDEF:         return "typedef";
 	case ENTITY_NAMESPACE:       return "namespace";
-	case ENTITY_INVALID:         break;
 	}
 
 	panic("Invalid entity kind encountered in get_entity_kind_name");
 }
+
+/**
+ * Returns the size of an entity node.
+ *
+ * @param kind  the entity kind
+ */
+static size_t get_entity_struct_size(entity_kind_t kind)
+{
+	static const size_t sizes[] = {
+		[ENTITY_VARIABLE]        = sizeof(variable_t),
+		[ENTITY_PARAMETER]       = sizeof(parameter_t),
+		[ENTITY_COMPOUND_MEMBER] = sizeof(compound_member_t),
+		[ENTITY_FUNCTION]        = sizeof(function_t),
+		[ENTITY_TYPEDEF]         = sizeof(typedef_t),
+		[ENTITY_STRUCT]          = sizeof(compound_t),
+		[ENTITY_UNION]           = sizeof(compound_t),
+		[ENTITY_ENUM]            = sizeof(enum_t),
+		[ENTITY_ENUM_VALUE]      = sizeof(enum_value_t),
+		[ENTITY_LABEL]           = sizeof(label_t),
+		[ENTITY_LOCAL_LABEL]     = sizeof(label_t),
+		[ENTITY_NAMESPACE]       = sizeof(namespace_t)
+	};
+	assert(kind < lengthof(sizes));
+	assert(sizes[kind] != 0);
+	return sizes[kind];
+}
+
+/**
+ * Allocate an entity of given kind and initialize all
+ * fields with zero.
+ *
+ * @param kind   the kind of the entity to allocate
+ */
+entity_t *allocate_entity_zero(entity_kind_t const kind, entity_namespace_t const namespc, symbol_t *const symbol)
+{
+	size_t    size       = get_entity_struct_size(kind);
+	entity_t *entity     = allocate_ast_zero(size);
+	entity->kind         = kind;
+	entity->base.namespc = namespc;
+	entity->base.symbol  = symbol;
+	return entity;
+}
+
+elf_visibility_tag_t get_elf_visibility_from_string(const char *string)
+{
+	if (streq(string, "default")) {
+		return ELF_VISIBILITY_DEFAULT;
+	} else if (streq(string, "hidden")) {
+		return ELF_VISIBILITY_HIDDEN;
+	} else if (streq(string, "internal")) {
+		return ELF_VISIBILITY_INTERNAL;
+	} else if (streq(string, "protected")) {
+		return ELF_VISIBILITY_PROTECTED;
+	} else {
+		return ELF_VISIBILITY_ERROR;
+	}
+}
+
+entity_t *skip_unnamed_bitfields(entity_t *entry)
+{
+	for (; entry != NULL; entry = entry->base.next) {
+		assert(entry->kind == ENTITY_COMPOUND_MEMBER);
+		if (!entry->compound_member.bitfield || entry->base.symbol != NULL)
+			break;
+	}
+	return entry;
+}