text: /**
   * \file
   * Copyright 2012 Xamarin Inc
   * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   */
  #ifndef __MONO_METADATA_CLASS_INTERNALS_H__
  #define __MONO_METADATA_CLASS_INTERNALS_H__
  
  #include <mono/metadata/class.h>
  #include <mono/metadata/object.h>
  #include <mono/metadata/mempool.h>
  #include <mono/metadata/metadata-internals.h>
  #include <mono/metadata/property-bag.h>
  #include "mono/utils/mono-compiler.h"
  #include "mono/utils/mono-error.h"
  #include "mono/sgen/gc-internal-agnostic.h"
  #include "mono/utils/mono-error-internals.h"
  #include "mono/utils/mono-memory-model.h"
  
  #define MONO_CLASS_IS_ARRAY(c) (m_class_get_rank (c))
  
  #define MONO_CLASS_HAS_STATIC_METADATA(klass) (m_class_get_type_token (klass) && !m_class_get_image (klass)->dynamic && !mono_class_is_ginst (klass))
  
  #define MONO_DEFAULT_SUPERTABLE_SIZE 6
  
  extern gboolean mono_print_vtable;
  extern gboolean mono_align_small_structs;
  extern gint32 mono_simd_register_size;
  
  typedef struct _MonoMethodWrapper MonoMethodWrapper;
  typedef struct _MonoMethodInflated MonoMethodInflated;
  typedef struct _MonoMethodPInvoke MonoMethodPInvoke;
  typedef struct _MonoDynamicMethod MonoDynamicMethod;
  
  /* Properties that applies to a group of structs should better use a higher number
   * to avoid colision with type specific properties.
   * 
   * This prop applies to class, method, property, event, assembly and image.
   */
  #define MONO_PROP_DYNAMIC_CATTR 0x1000
  
  typedef enum {
  #define WRAPPER(e,n) MONO_WRAPPER_ ## e,
  #include "wrapper-types.h"
  #undef WRAPPER
  	MONO_WRAPPER_NUM
  } MonoWrapperType;
  
  typedef enum {
  	MONO_REMOTING_TARGET_UNKNOWN,
  	MONO_REMOTING_TARGET_APPDOMAIN,
  	MONO_REMOTING_TARGET_COMINTEROP
  } MonoRemotingTarget;
  
  #define MONO_METHOD_PROP_GENERIC_CONTAINER 0
  /* verification success bit, protected by the image lock */
  #define MONO_METHOD_PROP_VERIFICATION_SUCCESS 1
  /* infrequent vtable layout bits protected by the loader lock */
  #define MONO_METHOD_PROP_INFREQUENT_BITS 2
  
  /* Infrequently accessed bits of method definitions stored in the image properties.
   * The method must not be inflated.
   *
   * LOCKING: Reading the bits acquires the image lock.  Writing the bits assumes
   * the loader lock is held.
   */
  typedef struct _MonoMethodDefInfrequentBits {
  	unsigned int is_reabstracted:1;  /* whenever this is a reabstraction of another interface */
  	unsigned int is_covariant_override_impl:1; /* whether this is an override with a signature different from its declared method */
  } MonoMethodDefInfrequentBits;
  
  struct _MonoMethod {
  	guint16 flags;  /* method flags */
  	guint16 iflags; /* method implementation flags */
  	guint32 token;
  	MonoClass *klass; /* To what class does this method belong */
  	MonoMethodSignature *signature;
  	/* name is useful mostly for debugging */
  	const char *name;
  	/* this is used by the inlining algorithm */
  	unsigned int inline_info:1;
  	unsigned int inline_failure:1;
  	unsigned int wrapper_type:5;
  	unsigned int string_ctor:1;
  	unsigned int save_lmf:1;
  	unsigned int dynamic:1; /* created & destroyed during runtime */
  	unsigned int sre_method:1; /* created at runtime using Reflection.Emit */
  	unsigned int is_generic:1; /* whenever this is a generic method definition */
  	unsigned int is_inflated:1; /* whether we're a MonoMethodInflated */
  	unsigned int skip_visibility:1; /* whenever to skip JIT visibility checks */
  	unsigned int _unused : 2; /* unused */
  	signed int slot : 16;
  
  	/*
  	 * If is_generic is TRUE, the generic_container is stored in image->property_hash, 
  	 * using the key MONO_METHOD_PROP_GENERIC_CONTAINER.
  	 */
  };
  
  struct _MonoMethodWrapper {
  	MonoMethod method;
  	MonoMethodHeader *header;
  	void *method_data;
  };
  
  struct _MonoDynamicMethod {
  	MonoMethodWrapper method;
  	MonoAssembly *assembly;
  };
  
  struct _MonoMethodPInvoke {
  	MonoMethod method;
  	gpointer addr;
  	/* add marshal info */
  	union {
  		guint16 piflags;  /* pinvoke flags */
  		guint16 icflags;  /* icall flags */
  	};
  	guint32 implmap_idx;  /* index into IMPLMAP */
  };
  
  /* 
   * Stores the default value / RVA of fields.
   * This information is rarely needed, so it is stored separately from 
   * MonoClassField.
   */
  typedef struct MonoFieldDefaultValue {
  	/*
  	 * If the field is constant, pointer to the metadata constant
  	 * value.
  	 * If the field has an RVA flag, pointer to the data.
  	 * Else, invalid.
  	 */
  	const char      *data;
  
  	/* If the field is constant, the type of the constant. */
  	MonoTypeEnum     def_type;
  } MonoFieldDefaultValue;
  
  /*
   * MonoClassField is just a runtime representation of the metadata for
   * field, it doesn't contain the data directly.  Static fields are
   * stored in MonoVTable->data.  Instance fields are allocated in the
   * objects after the object header.
   */
  struct _MonoClassField {
  	/* Type of the field */
  	MonoType        *type;
  
  	const char      *name;
  
  	/* Type where the field was defined */
  	MonoClass       *parent;
  
  	/*
  	 * Offset where this field is stored; if it is an instance
  	 * field, it's the offset from the start of the object, if
  	 * it's static, it's from the start of the memory chunk
  	 * allocated for statics for the class.
  	 * For special static fields, this is set to -1 during vtable construction.
  	 */
  	int              offset;
  };
  
  /* a field is ignored if it's named "_Deleted" and it has the specialname and rtspecialname flags set */
  #define mono_field_is_deleted(field) (((field)->type->attrs & (FIELD_ATTRIBUTE_SPECIAL_NAME | FIELD_ATTRIBUTE_RT_SPECIAL_NAME)) \
  				      && (strcmp (mono_field_get_name (field), "_Deleted") == 0))
  
  /* a field is ignored if it's named "_Deleted" and it has the specialname and rtspecialname flags set */
  /* Try to avoid loading the field's type */
  #define mono_field_is_deleted_with_flags(field, flags) (((flags) & (FIELD_ATTRIBUTE_SPECIAL_NAME | FIELD_ATTRIBUTE_RT_SPECIAL_NAME)) \
  				      && (strcmp (mono_field_get_name (field), "_Deleted") == 0))
  
  typedef struct {
  	MonoClassField *field;
  	guint32 offset;
  	MonoMarshalSpec *mspec;
  } MonoMarshalField;
  
  typedef struct {
  	MonoPropertyBagItem head;
  
  	guint32 native_size, min_align;
  	guint32 num_fields;
  	MonoMethod *ptr_to_str;
  	MonoMethod *str_to_ptr;
  	MonoMarshalField fields [MONO_ZERO_LEN_ARRAY];
  } MonoMarshalType;
  
  #define MONO_SIZEOF_MARSHAL_TYPE (offsetof (MonoMarshalType, fields))
  
  struct _MonoProperty {
  	MonoClass *parent;
  	const char *name;
  	MonoMethod *get;
  	MonoMethod *set;
  	guint32 attrs;
  };
  
  struct _MonoEvent {
  	MonoClass *parent;
  	const char *name;
  	MonoMethod *add;
  	MonoMethod *remove;
  	MonoMethod *raise;
  #ifndef MONO_SMALL_CONFIG
  	MonoMethod **other;
  #endif
  	guint32 attrs;
  };
  
  /* type of exception being "on hold" for later processing (see exception_type) */
  typedef enum {
  	MONO_EXCEPTION_NONE = 0,
  	MONO_EXCEPTION_INVALID_PROGRAM = 3,
  	MONO_EXCEPTION_UNVERIFIABLE_IL = 4,
  	MONO_EXCEPTION_MISSING_METHOD = 5,
  	MONO_EXCEPTION_MISSING_FIELD = 6,
  	MONO_EXCEPTION_TYPE_LOAD = 7,
  	MONO_EXCEPTION_FILE_NOT_FOUND = 8,
  	MONO_EXCEPTION_METHOD_ACCESS = 9,
  	MONO_EXCEPTION_FIELD_ACCESS = 10,
  	MONO_EXCEPTION_GENERIC_SHARING_FAILED = 11,
  	MONO_EXCEPTION_BAD_IMAGE = 12,
  	MONO_EXCEPTION_OBJECT_SUPPLIED = 13, /*The exception object is already created.*/
  	MONO_EXCEPTION_OUT_OF_MEMORY = 14,
  	MONO_EXCEPTION_INLINE_FAILED = 15,
  	MONO_EXCEPTION_MONO_ERROR = 16,
  	/* add other exception type */
  } MonoExceptionType;
  
  /* This struct collects the info needed for the runtime use of a class,
   * like the vtables for a domain, the GC descriptor, etc.
   */
  typedef struct {
  	guint16 max_domain;
  	/* domain_vtables is indexed by the domain id and the size is max_domain + 1 */
  	MonoVTable *domain_vtables [MONO_ZERO_LEN_ARRAY];
  } MonoClassRuntimeInfo;
  
  #define MONO_SIZEOF_CLASS_RUNTIME_INFO (sizeof (MonoClassRuntimeInfo) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
  
  typedef struct {
  	MonoPropertyBagItem head;
  
  	MonoProperty *properties;
  	guint32 first, count;
  	MonoFieldDefaultValue *def_values;
  } MonoClassPropertyInfo;
  
  typedef struct {
  	MonoPropertyBagItem head;
  
  	/* Initialized by a call to mono_class_setup_events () */
  	MonoEvent *events;
  	guint32 first, count;
  } MonoClassEventInfo;
  
  typedef enum {
  	MONO_CLASS_DEF = 1, /* non-generic type */
  	MONO_CLASS_GTD, /* generic type definition */
  	MONO_CLASS_GINST, /* generic instantiation */
  	MONO_CLASS_GPARAM, /* generic parameter */
  	MONO_CLASS_ARRAY, /* vector or array, bounded or not */
  	MONO_CLASS_POINTER, /* pointer or function pointer*/
  } MonoTypeKind;
  
  typedef struct _MonoClassDef MonoClassDef;
  typedef struct _MonoClassGtd MonoClassGtd;
  typedef struct _MonoClassGenericInst MonoClassGenericInst;
  typedef struct _MonoClassGenericParam MonoClassGenericParam;
  typedef struct _MonoClassArray MonoClassArray;
  typedef struct _MonoClassPointer MonoClassPointer;
  
  union _MonoClassSizes {
  		int class_size; /* size of area for static fields */
  		int element_size; /* for array types */
  		int generic_param_token; /* for generic param types, both var and mvar */
  };
  
  /* enabled only with small config for now: we might want to do it unconditionally */
  #ifdef MONO_SMALL_CONFIG
  #define COMPRESSED_INTERFACE_BITMAP 1
  #endif
  
  
  #ifdef ENABLE_CHECKED_BUILD_PRIVATE_TYPES
  #define MONO_CLASS_DEF_PRIVATE 1
  #endif
  
  /* Hide _MonoClass definition in checked build mode to ensure that
   * it is only accessed via getter and setter methods.
   */
  #ifndef MONO_CLASS_DEF_PRIVATE
  #include "class-private-definition.h"
  #endif
  
  /* If MonoClass definition is hidden, just declare the getters.
   * Otherwise, define them as static inline functions.
   *
   * In-tree profilers are allowed to use the getters.  So if we're compiling
   * with --enable-checked-build=private_types, mark the symbols with
   * MONO_PROFILER_API
   */
  #ifdef MONO_CLASS_DEF_PRIVATE
  #define MONO_CLASS_GETTER(funcname, rettype, optref, argtype, fieldname) MONO_PROFILER_API rettype funcname (argtype *klass);
  #else
  #define MONO_CLASS_GETTER(funcname, rettype, optref, argtype, fieldname) static inline rettype funcname (argtype *klass) { return optref klass-> fieldname ; }
  #endif
  #define MONO_CLASS_OFFSET(funcname, argtype, fieldname) /*nothing*/
  #include "class-getters.h"
  #undef MONO_CLASS_GETTER
  #undef MONO_CLASS_OFFSET
  
  #ifdef COMPRESSED_INTERFACE_BITMAP
  int mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size);
  int mono_class_interface_match (const uint8_t *bitmap, int id);
  #else
  #define mono_class_interface_match(bmap,uiid) ((bmap) [(uiid) >> 3] & (1 << ((uiid)&7)))
  #endif
  
  #define MONO_CLASS_IMPLEMENTS_INTERFACE(k,uiid) (((uiid) <= m_class_get_max_interface_id (k)) && mono_class_interface_match (m_class_get_interface_bitmap (k), (uiid)))
  
  #define MONO_VTABLE_AVAILABLE_GC_BITS 4
  
  #ifdef DISABLE_REMOTING
  #define mono_class_is_marshalbyref(klass) (FALSE)
  #define mono_class_is_contextbound(klass) (FALSE)
  #define mono_vtable_is_remote(vtable) (FALSE)
  #define mono_vtable_set_is_remote(vtable,enable) do {} while (0)
  #else
  #define mono_class_is_marshalbyref(klass) (m_class_get_marshalbyref (klass))
  #define mono_class_is_contextbound(klass) (m_class_get_contextbound (klass))
  #define mono_vtable_is_remote(vtable) ((vtable)->remote)
  #define mono_vtable_set_is_remote(vtable,enable) do { (vtable)->remote = enable ? 1 : 0; } while (0)
  #endif
  
  #ifdef DISABLE_COM
  #define mono_class_is_com_object(klass) (FALSE)
  #else
  #define mono_class_is_com_object(klass) (m_class_is_com_object (klass))
  #endif
  
  
  MONO_API int mono_class_interface_offset (MonoClass *klass, MonoClass *itf);
  int mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match);
  
  typedef gpointer MonoRuntimeGenericContext;
  
  typedef enum {
  	/* array or string */
  	MONO_VT_FLAG_ARRAY_OR_STRING = (1 << 0),
  	MONO_VT_FLAG_HAS_REFERENCES = (1 << 1),
  	MONO_VT_FLAG_ARRAY_IS_PRIMITIVE = (1 << 2),
  } MonoVTableFlags;
  
  /* the interface_offsets array is stored in memory before this struct */
  struct MonoVTable {
  	MonoClass  *klass;
  	 /*
  	 * According to comments in gc_gcj.h, this should be the second word in
  	 * the vtable.
  	 */
  	MonoGCDescriptor gc_descr;
  	MonoDomain *domain;  /* each object/vtable belongs to exactly one domain */
  	gpointer    type; /* System.Type type for klass */
  	guint8     *interface_bitmap;
  	guint32     max_interface_id;
  	guint8      rank;
  	/* Keep this a guint8, the jit depends on it */
  	guint8      initialized; /* cctor has been run */
  	/* Keep this a guint8, the jit depends on it */
  	guint8      flags; /* MonoVTableFlags */
  	guint remote          : 1; /* class is remotely activated */
  	guint init_failed     : 1; /* cctor execution failed */
  	guint has_static_fields : 1; /* pointer to the data stored at the end of the vtable array */
  	guint gc_bits         : MONO_VTABLE_AVAILABLE_GC_BITS; /* Those bits are reserved for the usaged of the GC */
  
  	guint32     imt_collisions_bitmap;
  	MonoRuntimeGenericContext *runtime_generic_context;
  	/* interp virtual method table */
  	gpointer *interp_vtable;
  	/* do not add any fields after vtable, the structure is dynamically extended */
  	/* vtable contains function pointers to methods or their trampolines, at the
  	 end there may be a slot containing the pointer to the static fields */
  	gpointer    vtable [MONO_ZERO_LEN_ARRAY];	
  };
  
  #define MONO_SIZEOF_VTABLE (sizeof (MonoVTable) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
  
  #define MONO_VTABLE_IMPLEMENTS_INTERFACE(vt,uiid) (((uiid) <= (vt)->max_interface_id) && mono_class_interface_match ((vt)->interface_bitmap, (uiid)))
  
  /*
   * Generic instantiation data type encoding.
   */
  
  /*
   * A particular generic instantiation:
   *
   * All instantiations are cached and we don't distinguish between class and method
   * instantiations here.
   */
  struct _MonoGenericInst {
  #ifndef MONO_SMALL_CONFIG
  	gint32 id;			/* unique ID for debugging */
  #endif
  	guint type_argc    : 22;	/* number of type arguments */
  	guint is_open      :  1;	/* if this is an open type */
  	MonoType *type_argv [MONO_ZERO_LEN_ARRAY];
  };
  
  #define MONO_SIZEOF_GENERIC_INST (sizeof (MonoGenericInst) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
  /*
   * The generic context: an instantiation of a set of class and method generic parameters.
   *
   * NOTE: Never allocate this directly on the heap.  It have to be either allocated on the stack,
   *	 or embedded within other objects.  Don't store pointers to this, because it may be on the stack.
   *	 If you really have to, ensure you store a pointer to the embedding object along with it.
   */
  struct _MonoGenericContext {
  	/* The instantiation corresponding to the class generic parameters */
  	MonoGenericInst *class_inst;
  	/* The instantiation corresponding to the method generic parameters */
  	MonoGenericInst *method_inst;
  };
  
  /*
   * Inflated generic method.
   */
  struct _MonoMethodInflated {
  	union {
  		MonoMethod method;
  		MonoMethodPInvoke pinvoke;
  	} method;
  	MonoMethod *declaring;		/* the generic method definition. */
  	MonoGenericContext context;	/* The current instantiation */
  	MonoImageSet *owner; /* The image set that the inflated method belongs to. */
  };
  
  /*
   * A particular instantiation of a generic type.
   */
  struct _MonoGenericClass {
  	MonoClass *container_class;	/* the generic type definition */
  	MonoGenericContext context;	/* a context that contains the type instantiation doesn't contain any method instantiation */ /* FIXME: Only the class_inst member of "context" is ever used, so this field could be replaced with just a monogenericinst */
  	guint is_dynamic  : 1;		/* Contains dynamic types */
  	guint is_tb_open  : 1;		/* This is the fully open instantiation for a type_builder. Quite ugly, but it's temporary.*/
  	guint need_sync   : 1;      /* Only if dynamic. Need to be synchronized with its container class after its finished. */
  	MonoClass *cached_class;	/* if present, the MonoClass corresponding to the instantiation.  */
  
  	/* 
  	 * The image set which owns this generic class. Memory owned by the generic class
  	 * including cached_class should be allocated from the mempool of the image set,
  	 * so it is easy to free.
  	 */
  	MonoImageSet *owner;
  };
  
  /* Additional details about a MonoGenericParam */
  /* Keep in sync with managed Mono.RuntimeStructs.GenericParamInfo */
  typedef struct {
  	MonoClass *pklass;		/* The corresponding `MonoClass'. */
  	const char *name;
  
  	// See GenericParameterAttributes
  	guint16 flags;
  
  	guint32 token;
  
  	// Constraints on type parameters
  	MonoClass** constraints; /* NULL means end of list */
  } MonoGenericParamInfo;
  
  /*
   * A type parameter.
   */
  struct _MonoGenericParam {
  	/*
  	 * Type or method this parameter was defined in.
  	 */
  	MonoGenericContainer *owner;
  	guint16 num;
  	/*
  	 * If != NULL, this is a generated generic param used by the JIT to implement generic
  	 * sharing.
  	 */
  	MonoType *gshared_constraint;
  
  	MonoGenericParamInfo info;
  };
  
  typedef MonoGenericParam MonoGenericParamFull;
  
  /*
   * The generic container.
   *
   * Stores the type parameters of a generic type definition or a generic method definition.
   */
  struct _MonoGenericContainer {
  	MonoGenericContext context;
  	/* If we're a generic method definition in a generic type definition,
  	   the generic container of the containing class. */
  	MonoGenericContainer *parent;
  	/* the generic type definition or the generic method definition corresponding to this container */
  	/* Union rules: If is_anonymous, image field is valid; else if is_method, method field is valid; else klass is valid. */
  	union {
  		MonoClass *klass;
  		MonoMethod *method;
  		MonoImage *image;
  	} owner;
  	int type_argc    : 29; // Per the ECMA spec, this value is capped at 16 bits
  	/* If true, we're a generic method, otherwise a generic type definition. */
  	/* Invariant: parent != NULL => is_method */
  	int is_method     : 1;
  	/* If true, this container has no associated class/method and only the image is known. This can happen:
  	   1. For the special anonymous containers kept by MonoImage.
  	   2. When user code creates a generic parameter via SRE, but has not yet set an owner. */
  	int is_anonymous : 1;
  	/* Our type parameters. If this is a special anonymous container (case 1, above), this field is not valid, use mono_metadata_create_anon_gparam ()  */
  	MonoGenericParamFull *type_params;
  };
  
  static inline MonoGenericParam *
  mono_generic_container_get_param (MonoGenericContainer *gc, int i)
  {
  	return (MonoGenericParam *) &gc->type_params [i];
  }
  
  static inline MonoGenericParamInfo *
  mono_generic_container_get_param_info (MonoGenericContainer *gc, int i)
  {
  	return &gc->type_params [i].info;
  }
  
  static inline MonoGenericContainer *
  mono_generic_param_owner (MonoGenericParam *p)
  {
  	return p->owner;
  }
  
  static inline int
  mono_generic_param_num (MonoGenericParam *p)
  {
  	return p->num;
  }
  
  static inline MonoGenericParamInfo *
  mono_generic_param_info (MonoGenericParam *p)
  {
  	return &((MonoGenericParamFull *) p)->info;
  }
  
  static inline const char *
  mono_generic_param_name (MonoGenericParam *p)
  {
  	return ((MonoGenericParamFull *) p)->info.name;
  }
  
  static inline MonoGenericContainer *
  mono_type_get_generic_param_owner (MonoType *t)
  {
  	return mono_generic_param_owner (t->data.generic_param);
  }
  
  static inline int
  mono_type_get_generic_param_num (MonoType *t)
  {
  	return mono_generic_param_num (t->data.generic_param);
  }
  
  /*
   * Class information which might be cached by the runtime in the AOT file for
   * example. Caching this allows us to avoid computing a generic vtable
   * (class->vtable) in most cases, saving time and avoiding creation of lots of
   * MonoMethod structures.
   */
  typedef struct MonoCachedClassInfo {
  	guint32 vtable_size;
  	guint has_finalize : 1;
  	guint ghcimpl : 1;
  	guint has_cctor : 1;
  	guint has_nested_classes : 1;
  	guint blittable : 1;
  	guint has_references : 1;
  	guint has_static_refs : 1;
  	guint no_special_static_fields : 1;
  	guint is_generic_container : 1;
  	guint has_weak_fields : 1;
  	guint32 cctor_token;
  	MonoImage *finalize_image;
  	guint32 finalize_token;
  	guint32 instance_size;
  	guint32 class_size;
  	guint32 packing_size;
  	guint32 min_align;
  } MonoCachedClassInfo;
  
  typedef struct {
  	// Name and func fields double as "inited".
  	// That is, any initialized MonoJitICallInfo must
  	// have both of them to be non-NULL.
  	const char *name;
  	gconstpointer func;
  	gconstpointer wrapper;
  	gconstpointer trampoline;
  	MonoMethodSignature *sig;
  	const char *c_symbol;
  	MonoMethod *wrapper_method;
  } MonoJitICallInfo;
  
  void
  mono_class_setup_supertypes (MonoClass *klass);
  
  /* WARNING
   * Only call this function if you can ensure both @klass and @parent
   * have supertype information initialized.
   * This can be accomplished by mono_class_setup_supertypes or mono_class_init.
   * If unsure, use mono_class_has_parent.
   */
  static inline gboolean
  mono_class_has_parent_fast (MonoClass *klass, MonoClass *parent)
  {
  	return (m_class_get_idepth (klass) >= m_class_get_idepth (parent)) && (m_class_get_supertypes (klass) [m_class_get_idepth (parent) - 1] == parent);
  }
  
  static inline gboolean
  mono_class_has_parent (MonoClass *klass, MonoClass *parent)
  {
  	if (G_UNLIKELY (!m_class_get_supertypes (klass)))
  		mono_class_setup_supertypes (klass);
  
  	if (G_UNLIKELY (!m_class_get_supertypes (parent)))
  		mono_class_setup_supertypes (parent);
  
  	return mono_class_has_parent_fast (klass, parent);
  }
  
  typedef struct {
  	MonoVTable *default_vtable;
  	MonoVTable *xdomain_vtable;
  	MonoClass *proxy_class;
  	char* proxy_class_name;
  	uint32_t interface_count;
  	MonoClass *interfaces [MONO_ZERO_LEN_ARRAY];
  } MonoRemoteClass;
  
  #define MONO_SIZEOF_REMOTE_CLASS (sizeof (MonoRemoteClass) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
  
  typedef struct {
  	gint32 initialized_class_count;
  	gint32 generic_vtable_count;
  	gint32 used_class_count;
  	gint32 method_count;
  	gint32 class_vtable_size;
  	gint32 class_static_data_size;
  	gint32 generic_class_count;
  	gint32 inflated_method_count;
  	gint32 inflated_type_count;
  	gint32 delegate_creations;
  	gint32 imt_tables_size;
  	gint32 imt_number_of_tables;
  	gint32 imt_number_of_methods;
  	gint32 imt_used_slots;
  	gint32 imt_slots_with_collisions;
  	gint32 imt_max_collisions_in_slot;
  	gint32 imt_method_count_when_max_collisions;
  	gint32 imt_trampolines_size;
  	gint32 jit_info_table_insert_count;
  	gint32 jit_info_table_remove_count;
  	gint32 jit_info_table_lookup_count;
  	gint32 generics_sharable_methods;
  	gint32 generics_unsharable_methods;
  	gint32 generics_shared_methods;
  	gint32 gsharedvt_methods;
  	gboolean enabled;
  } MonoStats;
  
  /* 
   * new structure to hold performace counters values that are exported
   * to managed code.
   * Note: never remove fields from this structure and only add them to the end.
   * Size of fields and type should not be changed as well.
   */
  typedef struct {
  	/* JIT category */
  	gint32 jit_methods;
  	gint32 jit_bytes;
  	gint32 jit_time;
  	gint32 jit_failures;
  	/* Exceptions category */
  	gint32 exceptions_thrown;
  	gint32 exceptions_filters;
  	gint32 exceptions_finallys;
  	gint32 exceptions_depth;
  	gint32 aspnet_requests_queued;
  	gint32 aspnet_requests;
  	/* Memory category */
  	gint32 gc_collections0;
  	gint32 gc_collections1;
  	gint32 gc_collections2;
  	gint32 gc_promotions0;
  	gint32 gc_promotions1;
  	gint32 gc_promotion_finalizers;
  	gint64 gc_gen0size;
  	gint64 gc_gen1size;
  	gint64 gc_gen2size;
  	gint32 gc_lossize;
  	gint32 gc_fin_survivors;
  	gint32 gc_num_handles;
  	gint32 gc_allocated;
  	gint32 gc_induced;
  	gint32 gc_time;
  	gint64 gc_total_bytes;
  	gint64 gc_committed_bytes;
  	gint64 gc_reserved_bytes;
  	gint32 gc_num_pinned;
  	gint32 gc_sync_blocks;
  	/* Remoting category */
  	gint32 remoting_calls;
  	gint32 remoting_channels;
  	gint32 remoting_proxies;
  	gint32 remoting_classes;
  	gint32 remoting_objects;
  	gint32 remoting_contexts;
  	/* Loader category */
  	gint32 loader_classes;
  	gint32 loader_total_classes;
  	gint32 loader_appdomains;
  	gint32 loader_total_appdomains;
  	gint32 loader_assemblies;
  	gint32 loader_total_assemblies;
  	gint32 loader_failures;
  	gint32 loader_bytes;
  	gint32 loader_appdomains_uloaded;
  	/* Threads and Locks category  */
  	gint32 thread_contentions;
  	gint32 thread_queue_len;
  	gint32 thread_queue_max;
  	gint32 thread_num_logical;
  	gint32 thread_num_physical;
  	gint32 thread_cur_recognized;
  	gint32 thread_num_recognized;
  	/* Interop category */
  	gint32 interop_num_ccw;
  	gint32 interop_num_stubs;
  	gint32 interop_num_marshals;
  	/* Security category */
  	gint32 security_num_checks;
  	gint32 security_num_link_checks;
  	gint32 security_time;
  	gint32 security_depth;
  	gint32 unused;
  	/* Threadpool */
  	gint32 threadpool_threads;
  	gint64 threadpool_workitems;
  	gint64 threadpool_ioworkitems;
  	gint32 threadpool_iothreads;
  } MonoPerfCounters;
  
  extern MonoPerfCounters *mono_perfcounters;
  
  MONO_API void mono_perfcounters_init (void);
  
  /*
   * The definition of the first field in SafeHandle,
   * Keep in sync with SafeHandle.cs, this is only used
   * to access the `handle' parameter.
   */
  typedef struct {
  	MonoObject  base;
  	void       *handle;
  } MonoSafeHandle;
  
  /*
   * Keep in sync with HandleRef.cs
   */
  typedef struct {
  	MonoObject *wrapper;
  	void       *handle;
  } MonoHandleRef;
  
  extern MonoStats mono_stats;
  
  typedef gboolean (*MonoGetCachedClassInfo) (MonoClass *klass, MonoCachedClassInfo *res);
  
  typedef gboolean (*MonoGetClassFromName) (MonoImage *image, const char *name_space, const char *name, MonoClass **res);
  
  static inline gboolean
  method_is_dynamic (MonoMethod *method)
  {
  #ifdef DISABLE_REFLECTION_EMIT
  	return FALSE;
  #else
  	return method->dynamic;
  #endif
  }
  
  MonoMethod*
  mono_class_get_method_by_index (MonoClass *klass, int index);
  
  MonoMethod*
  mono_class_get_inflated_method (MonoClass *klass, MonoMethod *method, MonoError *error);
  
  MonoMethod*
  mono_class_get_vtable_entry (MonoClass *klass, int offset);
  
  GPtrArray*
  mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error);
  
  int
  mono_class_get_vtable_size (MonoClass *klass);
  
  gboolean
  mono_class_is_open_constructed_type (MonoType *t);
  
  void
  mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides, MonoGenericContext *generic_context, MonoError *error);
  
  MonoMethod*
  mono_class_get_cctor (MonoClass *klass);
  
  MonoMethod*
  mono_class_get_finalizer (MonoClass *klass);
  
  gboolean
  mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller);
  
  gboolean
  mono_class_field_is_special_static (MonoClassField *field);
  
  guint32
  mono_class_field_get_special_static_type (MonoClassField *field);
  
  gboolean
  mono_class_has_special_static_fields (MonoClass *klass);
  
  const char*
  mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type);
  
  MonoProperty* 
  mono_class_get_property_from_name_internal (MonoClass *klass, const char *name);
  
  const char*
  mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type);
  
  gpointer
  mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error);
  
  gpointer
  mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean check_token, MonoClass **handle_class, MonoGenericContext *context, MonoError *error);
  
  gpointer
  mono_runtime_create_delegate_trampoline (MonoClass *klass);
  
  void
  mono_install_get_cached_class_info (MonoGetCachedClassInfo func);
  
  void
  mono_install_get_class_from_name (MonoGetClassFromName func);
  
  MONO_PROFILER_API MonoGenericContext*
  mono_class_get_context (MonoClass *klass);
  
  MONO_PROFILER_API MonoMethodSignature*
  mono_method_signature_checked_slow (MonoMethod *m, MonoError *err);
  
  MONO_PROFILER_API MonoMethodSignature*
  mono_method_signature_internal_slow (MonoMethod *m);
  
  /**
   * mono_method_signature_checked:
   *
   * Return the signature of the method M. On failure, returns NULL, and ERR is set.
   */
  static inline MonoMethodSignature*
  mono_method_signature_checked (MonoMethod *m, MonoError *error)
  {
  	error_init (error);
  	MonoMethodSignature* sig = m->signature;
  	return sig ? sig : mono_method_signature_checked_slow (m, error);
  }
  
  /**
   * mono_method_signature_internal:
   * \returns the signature of the method \p m. On failure, returns NULL.
   */
  static inline MonoMethodSignature*
  mono_method_signature_internal (MonoMethod *m)
  {
  	MonoMethodSignature* sig = m->signature;
  	return sig ? sig : mono_method_signature_internal_slow (m);
  }
  
  MonoGenericContext*
  mono_method_get_context_general (MonoMethod *method, gboolean uninflated);
  
  MONO_PROFILER_API MonoGenericContext*
  mono_method_get_context (MonoMethod *method);
  
  /* Used by monodis, thus cannot be MONO_INTERNAL */
  MONO_API MonoGenericContainer*
  mono_method_get_generic_container (MonoMethod *method);
  
  MonoGenericContext*
  mono_generic_class_get_context (MonoGenericClass *gclass);
  
  void
  mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container);
  
  void
  mono_method_set_verification_success (MonoMethod *method);
  
  gboolean
  mono_method_get_verification_success (MonoMethod *method);
  
  const MonoMethodDefInfrequentBits *
  mono_method_lookup_infrequent_bits (MonoMethod *methoddef);
  
  MonoMethodDefInfrequentBits *
  mono_method_get_infrequent_bits (MonoMethod *methoddef);
  
  gboolean
  mono_method_get_is_reabstracted (MonoMethod *method);
  
  void
  mono_method_set_is_reabstracted (MonoMethod *methoddef);
  
  gboolean
  mono_method_get_is_covariant_override_impl (MonoMethod *method);
  
  void
  mono_method_set_is_covariant_override_impl (MonoMethod *methoddef);
  
  MonoMethod*
  mono_class_inflate_generic_method_full_checked (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context, MonoError *error);
  
  MonoMethod *
  mono_class_inflate_generic_method_checked (MonoMethod *method, MonoGenericContext *context, MonoError *error);
  
  MonoImageSet *
  mono_metadata_get_image_set_for_class (MonoClass *klass);
  
  MonoImageSet *
  mono_metadata_get_image_set_for_method (MonoMethodInflated *method);
  
  MONO_API MonoMethodSignature *
  mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context);
  
  MonoType*
  mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error);
  
  MonoType*
  mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error);
  
  MONO_API void
  mono_metadata_free_inflated_signature (MonoMethodSignature *sig);
  
  MonoMethodSignature*
  mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error);
  
  MonoClass*
  mono_generic_param_get_base_type (MonoClass *klass);
  
  typedef struct {
  	MonoImage *corlib;
  	MonoClass *object_class;
  	MonoClass *object_class_array; // used via token pasting in mono_array_class_get_cached
  	MonoClass *byte_class;
  	MonoClass *void_class;
  	MonoClass *boolean_class;
  	MonoClass *sbyte_class;
  	MonoClass *int16_class;
  	MonoClass *uint16_class;
  	MonoClass *int32_class;
  	MonoClass *uint32_class;
  	MonoClass *int_class;
  	MonoClass *uint_class;
  	MonoClass *int64_class;
  	MonoClass *uint64_class;
  	MonoClass *single_class;
  	MonoClass *double_class;
  	MonoClass *char_class;
  	MonoClass *string_class;
  	MonoClass *enum_class;
  	MonoClass *array_class;
  	MonoClass *delegate_class;
  	MonoClass *multicastdelegate_class;
  	MonoClass *manualresetevent_class;
  	MonoClass *typehandle_class;
  	MonoClass *fieldhandle_class;
  	MonoClass *methodhandle_class;
  	MonoClass *systemtype_class;
  	MonoClass *runtimetype_class;
  	MonoClass *runtimetype_class_array; // used via token pasting in mono_array_class_get_cached
  	MonoClass *exception_class;
  	MonoClass *threadabortexception_class;
  	MonoClass *thread_class;
  	MonoClass *internal_thread_class;
  #ifndef DISABLE_REMOTING
  	MonoClass *transparent_proxy_class;
  	MonoClass *real_proxy_class;
  	MonoClass *marshalbyrefobject_class;
  	MonoClass *iremotingtypeinfo_class;
  #endif
  	MonoClass *mono_method_message_class;
  	MonoClass *appdomain_class;
  	MonoClass *field_info_class;
  	MonoClass *method_info_class;
  	MonoClass *stack_frame_class;
  	MonoClass *marshal_class;
  	MonoClass *typed_reference_class;
  	MonoClass *argumenthandle_class;
  	MonoClass *monitor_class;
  	MonoClass *generic_ilist_class;
  	MonoClass *generic_nullable_class;
  	MonoClass *attribute_class;
  	MonoClass *attribute_class_array; // used via token pasting in mono_array_class_get_cached
  	MonoClass *critical_finalizer_object; /* MAYBE NULL */
  	MonoClass *generic_ireadonlylist_class;
  	MonoClass *generic_ienumerator_class;
  #ifdef ENABLE_NETCORE
  	MonoClass *alc_class;
  	MonoClass *appcontext_class;
  #endif
  #ifndef ENABLE_NETCORE
  	MonoMethod *threadpool_perform_wait_callback_method;
  #endif
  } MonoDefaults;
  
  #ifdef DISABLE_REMOTING
  #define mono_class_is_transparent_proxy(klass) (FALSE)
  #define mono_class_is_real_proxy(klass) (FALSE)
  #else
  #define mono_class_is_transparent_proxy(klass) ((klass) == mono_defaults.transparent_proxy_class)
  #define mono_class_is_real_proxy(klass) ((klass) == mono_defaults.real_proxy_class)
  #endif
  
  #define mono_object_is_transparent_proxy(object) (mono_class_is_transparent_proxy (mono_object_class (object)))
  
  
  #define GENERATE_GET_CLASS_WITH_CACHE_DECL(shortname) \
  MonoClass* mono_class_get_##shortname##_class (void);
  
  #define GENERATE_TRY_GET_CLASS_WITH_CACHE_DECL(shortname) \
  MonoClass* mono_class_try_get_##shortname##_class (void);
  
  // GENERATE_GET_CLASS_WITH_CACHE attempts mono_class_load_from_name whenever
  // its cache is null. i.e. potentially repeatedly, though it is expected to succeed
  // the first time.
  //
  #define GENERATE_GET_CLASS_WITH_CACHE(shortname,name_space,name) \
  MonoClass*	\
  mono_class_get_##shortname##_class (void)	\
  {	\
  	static MonoClass *tmp_class;	\
  	MonoClass *klass = tmp_class;	\
  	if (!klass) {	\
  		klass = mono_class_load_from_name (mono_defaults.corlib, name_space, name);	\
  		mono_memory_barrier ();	/* FIXME excessive? */ \
  		tmp_class = klass;	\
  	}	\
  	return klass;	\
  }
  
  // GENERATE_TRY_GET_CLASS_WITH_CACHE attempts mono_class_load_from_name approximately
  // only once. i.e. if it fails, it will return null and not retry.
  // In a race it might try a few times, but not indefinitely.
  //
  // FIXME This maybe has excessive volatile/barriers.
  //
  #define GENERATE_TRY_GET_CLASS_WITH_CACHE(shortname,name_space,name) \
  MonoClass*	\
  mono_class_try_get_##shortname##_class (void)	\
  {	\
  	static volatile MonoClass *tmp_class;	\
  	static volatile gboolean inited;	\
  	MonoClass *klass = (MonoClass *)tmp_class;	\
  	mono_memory_barrier ();	\
  	if (!inited) {	\
  		klass = mono_class_try_load_from_name (mono_defaults.corlib, name_space, name);	\
  		tmp_class = klass;	\
  		mono_memory_barrier ();	\
  		inited = TRUE;	\
  	}	\
  	return klass;	\
  }
  
  GENERATE_TRY_GET_CLASS_WITH_CACHE_DECL (safehandle)
  
  #ifndef DISABLE_COM
  
  GENERATE_GET_CLASS_WITH_CACHE_DECL (interop_proxy)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (idispatch)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (iunknown)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (com_object)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (variant)
  
  #endif
  
  GENERATE_GET_CLASS_WITH_CACHE_DECL (appdomain)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (appdomain_setup)
  
  GENERATE_GET_CLASS_WITH_CACHE_DECL (appdomain_unloaded_exception)
  GENERATE_TRY_GET_CLASS_WITH_CACHE_DECL (appdomain_unloaded_exception)
  
  GENERATE_GET_CLASS_WITH_CACHE_DECL (valuetype)
  
  GENERATE_TRY_GET_CLASS_WITH_CACHE_DECL(handleref)
  
  #ifdef ENABLE_NETCORE
  GENERATE_GET_CLASS_WITH_CACHE_DECL (assembly_load_context)
  GENERATE_GET_CLASS_WITH_CACHE_DECL (native_library)
  #endif
  
  /* If you need a MonoType, use one of the mono_get_*_type () functions in class-inlines.h */
  extern MonoDefaults mono_defaults;
  
  void
  mono_loader_init           (void);
  
  void
  mono_loader_cleanup        (void);
  
  void
  mono_loader_lock           (void);
  
  void
  mono_loader_unlock         (void);
  
  void
  mono_loader_lock_track_ownership (gboolean track);
  
  gboolean
  mono_loader_lock_is_owned_by_self (void);
  
  void
  mono_loader_lock_if_inited (void);
  
  void
  mono_loader_unlock_if_inited (void);
  
  void
  mono_reflection_init       (void);
  
  void
  mono_icall_init            (void);
  
  void
  mono_icall_cleanup         (void);
  
  gpointer
  mono_method_get_wrapper_data (MonoMethod *method, guint32 id);
  
  gboolean
  mono_metadata_has_generic_params (MonoImage *image, guint32 token);
  
  MONO_API MonoGenericContainer *
  mono_metadata_load_generic_params (MonoImage *image, guint32 token,
  				   MonoGenericContainer *parent_container,
  				   gpointer real_owner);
  
  MONO_API gboolean
  mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
  					      MonoGenericContainer *container, MonoError *error);
  
  // This is the "real" function for registering JIT icalls. All others are one line wrappers that call it,
  // i.e. filling in info or c_symbol.
  void
  mono_register_jit_icall_info (MonoJitICallInfo *info, gconstpointer func, const char *name,
  			      MonoMethodSignature *sig, gboolean no_wrapper, const char *c_symbol);
  
  #ifdef __cplusplus
  template <typename T>
  inline void
  mono_register_jit_icall_info (MonoJitICallInfo *info, T func, const char *name, MonoMethodSignature *sig, gboolean no_wrapper, const char *c_symbol)
  {
  	mono_register_jit_icall_info (info, (gconstpointer)func, name, sig, no_wrapper, c_symbol);
  }
  #endif // __cplusplus
  
  #define mono_register_jit_icall(func, sig, no_wrapper) (mono_register_jit_icall_info (&mono_get_jit_icall_info ()->func, func, #func, (sig), (no_wrapper), NULL))
  
  gboolean
  mono_class_set_type_load_failure (MonoClass *klass, const char * fmt, ...) MONO_ATTR_FORMAT_PRINTF(2,3);
  
  MonoException*
  mono_class_get_exception_for_failure (MonoClass *klass);
  
  char*
  mono_identifier_escape_type_name_chars (const char* identifier);
  
  char*
  mono_type_get_full_name (MonoClass *klass);
  
  char *
  mono_method_get_name_full (MonoMethod *method, gboolean signature, gboolean ret, MonoTypeNameFormat format);
  
  MONO_PROFILER_API char *
  mono_method_get_full_name (MonoMethod *method);
  
  const char*
  mono_wrapper_type_to_str (guint32 wrapper_type);
  
  MonoArrayType *mono_dup_array_type (MonoImage *image, MonoArrayType *a);
  MonoMethodSignature *mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig);
  
  MONO_API void
  mono_image_init_name_cache (MonoImage *image);
  
  MonoClass*
  mono_class_get_nullable_param_internal (MonoClass *klass);
  
  /* object debugging functions, for use inside gdb */
  MONO_API void mono_object_describe        (MonoObject *obj);
  MONO_API void mono_object_describe_fields (MonoObject *obj);
  MONO_API void mono_value_describe_fields  (MonoClass* klass, const char* addr);
  MONO_API void mono_class_describe_statics (MonoClass* klass);
  
  /* method debugging functions, for use inside gdb */
  MONO_API void mono_method_print_code (MonoMethod *method);
  
  MONO_PROFILER_API char *mono_signature_full_name (MonoMethodSignature *sig);
  
  /*Enum validation related functions*/
  MONO_API gboolean
  mono_type_is_valid_enum_basetype (MonoType * type);
  
  MONO_API gboolean
  mono_class_is_valid_enum (MonoClass *klass);
  
  MONO_PROFILER_API gboolean
  mono_type_is_primitive (MonoType *type);
  
  MonoType *
  mono_type_get_checked        (MonoImage *image, guint32 type_token, MonoGenericContext *context, MonoError *error);
  
  gboolean
  mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass);
  
  MonoType*
  mono_type_get_basic_type_from_generic (MonoType *type);
  
  gboolean
  mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass);
  
  gboolean
  mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass);
  
  gboolean
  mono_class_can_access_class (MonoClass *access_class, MonoClass *target_class);
  
  MonoClass *
  mono_class_get_generic_type_definition (MonoClass *klass);
  
  gboolean
  mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent);
  
  int
  mono_method_get_vtable_slot (MonoMethod *method);
  
  int
  mono_method_get_vtable_index (MonoMethod *method);
  
  MonoMethod*
  mono_method_get_base_method (MonoMethod *method, gboolean definition, MonoError *error);
  
  MonoMethod*
  mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig);
  
  void
  mono_class_setup_interface_id (MonoClass *klass);
  
  MonoGenericContainer*
  mono_class_get_generic_container (MonoClass *klass);
  
  gpointer
  mono_class_alloc (MonoClass *klass, int size);
  
  gpointer
  mono_class_alloc0 (MonoClass *klass, int size);
  
  #define mono_class_alloc0(klass, size) (g_cast (mono_class_alloc0 ((klass), (size))))
  
  void
  mono_class_setup_interfaces (MonoClass *klass, MonoError *error);
  
  MonoClassField*
  mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type);
  
  MonoVTable*
  mono_class_vtable_checked (MonoDomain *domain, MonoClass *klass, MonoError *error);
  
  void
  mono_class_is_assignable_from_checked (MonoClass *klass, MonoClass *oklass, gboolean *result, MonoError *error);
  
  void
  mono_class_signature_is_assignable_from (MonoClass *klass, MonoClass *oklass, gboolean *result, MonoError *error);
  
  gboolean
  mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate);
  
  gboolean
  mono_class_has_variant_generic_params (MonoClass *klass);
  
  gboolean
  mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass, gboolean check_for_reference_conv);
  
  gboolean 
  mono_class_is_subclass_of_internal (MonoClass *klass, MonoClass *klassc, gboolean check_interfaces);
  
  mono_bool
  mono_class_is_assignable_from_internal (MonoClass *klass, MonoClass *oklass);
  
  gboolean
  mono_byref_type_is_assignable_from (MonoType *type, MonoType *ctype, gboolean signature_assignment);
  
  gboolean mono_is_corlib_image (MonoImage *image);
  
  MonoType*
  mono_field_get_type_checked (MonoClassField *field, MonoError *error);
  
  MonoType*
  mono_field_get_type_internal (MonoClassField *field);
  
  MonoClassField*
  mono_class_get_fields_internal (MonoClass* klass, gpointer *iter);
  
  MonoClassField*
  mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter);
  
  gboolean
  mono_class_check_vtable_constraints (MonoClass *klass, GList *in_setup);
  
  gboolean
  mono_class_has_finalizer (MonoClass *klass);
  
  void
  mono_unload_interface_id (MonoClass *klass);
  
  GPtrArray*
  mono_class_get_methods_by_name (MonoClass *klass, const char *name, guint32 bflags, guint32 mlisttype, gboolean allow_ctors, MonoError *error);
  
  char*
  mono_class_full_name (MonoClass *klass);
  
  MonoClass*
  mono_class_inflate_generic_class_checked (MonoClass *gklass, MonoGenericContext *context, MonoError *error);
  
  MONO_PROFILER_API MonoClass *
  mono_class_get_checked (MonoImage *image, guint32 type_token, MonoError *error);
  
  MonoClass *
  mono_class_get_and_inflate_typespec_checked (MonoImage *image, guint32 type_token, MonoGenericContext *context, MonoError *error);
  
  MonoClass *
  mono_class_from_name_checked (MonoImage *image, const char* name_space, const char *name, MonoError *error);
  
  MonoClass *
  mono_class_from_name_case_checked (MonoImage *image, const char* name_space, const char *name, MonoError *error);
  
  MONO_PROFILER_API MonoClass *
  mono_class_from_mono_type_internal (MonoType *type);
  
  MonoClassField*
  mono_field_from_token_checked (MonoImage *image, uint32_t token, MonoClass **retklass, MonoGenericContext *context, MonoError *error);
  
  gpointer
  mono_ldtoken_checked (MonoImage *image, guint32 token, MonoClass **handle_class, MonoGenericContext *context, MonoError *error);
  
  MonoImage *
  mono_get_image_for_generic_param (MonoGenericParam *param);
  
  char *
  mono_make_generic_name_string (MonoImage *image, int num);
  
  MonoClass *
  mono_class_load_from_name (MonoImage *image, const char* name_space, const char *name);
  
  MonoClass*
  mono_class_try_load_from_name (MonoImage *image, const char* name_space, const char *name);
  
  void
  mono_error_set_for_class_failure (MonoError *orerror, const MonoClass *klass);
  
  gboolean
  mono_class_has_failure (const MonoClass *klass);
  
  /* Kind specific accessors */
  MonoGenericClass*
  mono_class_get_generic_class (MonoClass *klass);
  
  MonoGenericClass*
  mono_class_try_get_generic_class (MonoClass *klass);
  
  void
  mono_class_set_flags (MonoClass *klass, guint32 flags);
  
  MonoGenericContainer*
  mono_class_try_get_generic_container (MonoClass *klass);
  
  void
  mono_class_set_generic_container (MonoClass *klass, MonoGenericContainer *container);
  
  MonoType*
  mono_class_gtd_get_canonical_inst (MonoClass *klass);
  
  guint32
  mono_class_get_first_method_idx (MonoClass *klass);
  
  void
  mono_class_set_first_method_idx (MonoClass *klass, guint32 idx);
  
  guint32
  mono_class_get_first_field_idx (MonoClass *klass);
  
  void
  mono_class_set_first_field_idx (MonoClass *klass, guint32 idx);
  
  guint32
  mono_class_get_method_count (MonoClass *klass);
  
  void
  mono_class_set_method_count (MonoClass *klass, guint32 count);
  
  guint32
  mono_class_get_field_count (MonoClass *klass);
  
  void
  mono_class_set_field_count (MonoClass *klass, guint32 count);
  
  MonoMarshalType*
  mono_class_get_marshal_info (MonoClass *klass);
  
  void
  mono_class_set_marshal_info (MonoClass *klass, MonoMarshalType *marshal_info);
  
  MonoGCHandle
  mono_class_get_ref_info_handle (MonoClass *klass);
  
  MonoGCHandle
  mono_class_set_ref_info_handle (MonoClass *klass, gpointer value);
  
  MonoErrorBoxed*
  mono_class_get_exception_data (MonoClass *klass);
  
  void
  mono_class_set_exception_data (MonoClass *klass, MonoErrorBoxed *value);
  
  GList*
  mono_class_get_nested_classes_property (MonoClass *klass);
  
  void
  mono_class_set_nested_classes_property (MonoClass *klass, GList *value);
  
  MonoClassPropertyInfo*
  mono_class_get_property_info (MonoClass *klass);
  
  void
  mono_class_set_property_info (MonoClass *klass, MonoClassPropertyInfo *info);
  
  MonoClassEventInfo*
  mono_class_get_event_info (MonoClass *klass);
  
  void
  mono_class_set_event_info (MonoClass *klass, MonoClassEventInfo *info);
  
  MonoFieldDefaultValue*
  mono_class_get_field_def_values (MonoClass *klass);
  
  void
  mono_class_set_field_def_values (MonoClass *klass, MonoFieldDefaultValue *values);
  
  guint32
  mono_class_get_declsec_flags (MonoClass *klass);
  
  void
  mono_class_set_declsec_flags (MonoClass *klass, guint32 value);
  
  void
  mono_class_set_is_com_object (MonoClass *klass);
  
  void
  mono_class_set_weak_bitmap (MonoClass *klass, int nbits, gsize *bits);
  
  gsize*
  mono_class_get_weak_bitmap (MonoClass *klass, int *nbits);
  
  gboolean
  mono_class_has_dim_conflicts (MonoClass *klass);
  
  void
  mono_class_set_dim_conflicts (MonoClass *klass, GSList *conflicts);
  
  GSList*
  mono_class_get_dim_conflicts (MonoClass *klass);
  
  MonoMethod *
  mono_class_get_method_from_name_checked (MonoClass *klass, const char *name, int param_count, int flags, MonoError *error);
  
  gboolean
  mono_method_has_no_body (MonoMethod *method);
  
  // FIXME Replace all internal callers of mono_method_get_header_checked with
  // mono_method_get_header_internal; the difference is in error initialization.
  //
  // And then mark mono_method_get_header_checked as MONO_RT_EXTERNAL_ONLY MONO_API.
  //
  // Internal callers expected to use ERROR_DECL. External callers are not.
  MonoMethodHeader*
  mono_method_get_header_internal (MonoMethod *method, MonoError *error);
  
  MonoType*
  mono_class_find_enum_basetype (MonoClass *klass, MonoError *error);
  
  gboolean
  mono_class_set_failure (MonoClass *klass, MonoErrorBoxed *boxed_error);
  
  gboolean
  mono_class_set_type_load_failure_causedby_class (MonoClass *klass, const MonoClass *caused_by, const gchar* msg);
  
  gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
  
  MonoMethod* mono_find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
  
  int
  mono_class_get_object_finalize_slot (void);
  
  MonoMethod *
  mono_class_get_default_finalize_method (void);
  
  void
  mono_field_resolve_type (MonoClassField *field, MonoError *error);
  
  gboolean
  mono_type_has_exceptions (MonoType *type);
  
  void
  mono_class_set_nonblittable (MonoClass *klass);
  
  gboolean
  mono_class_publish_gc_descriptor (MonoClass *klass, MonoGCDescriptor gc_descr);
  
  void
  mono_class_compute_gc_descriptor (MonoClass *klass);
  
  #ifndef DISABLE_REMOTING
  void
  mono_class_contextbound_bit_offset (int* byte_offset_out, guint8* mask_out);
  #endif
  
  gboolean
  mono_class_init_checked (MonoClass *klass, MonoError *error);
  
  MonoType*
  mono_class_enum_basetype_internal (MonoClass *klass);
  
  gboolean
  mono_method_is_constructor (MonoMethod *method);
  
  gboolean
  mono_class_has_default_constructor (MonoClass *klass, gboolean public_only);
  
  gboolean
  mono_method_has_unmanaged_callers_only_attribute (MonoMethod *method);
  
  // There are many ways to do on-demand initialization.
  //   Some allow multiple concurrent initializations. Some do not.
  //   Some allow multiple concurrent writes to the global. Some do not.
  //
  // Booleans or names capturing these factors would be desirable.
  //	RacyInit?
  //
  // This form allows both such races, on the understanding that,
  // even if the initialization occurs multiple times, every result is equivalent,
  // and the goal is not to initialize no more than once, but for the steady state
  // to stop rerunning the initialization.
  //
  // It may be desirable to replace this with mono_lazy_initialize, etc.
  //
  // These macros cannot be wrapped in do/while as they inject "name" into invoking scope.
  //
  #define MONO_STATIC_POINTER_INIT(type, name)					\
  	static type *static_ ## name;						\
  	type *name; 								\
  	name = static_ ## name;							\
  	if (!name) {								\
  		/* Custom code here to initialize name */
  #define MONO_STATIC_POINTER_INIT_END(type, name)				\
  		if (name) {							\
  			/* Success, commit to static. */			\
  			mono_atomic_store_seq (&static_ ## name, name);		\
  		}								\
  	}									\
  
  static inline gboolean
  m_field_get_offset (MonoClassField *field)
  {
  	g_assert (m_class_is_fields_inited (field->parent));
  	return field->offset;
  }
  
  /*
   * Memory allocation for classes/methods
   *
   *   These should be used to allocate memory whose lifetime is equal to
   * the lifetime of the domain+class/method pair.
   */
  
  static inline MonoMemoryManager*
  m_class_get_mem_manager (MonoDomain *domain, MonoClass *klass)
  {
  #ifdef ENABLE_NETCORE
  	// FIXME:
  	return mono_domain_memory_manager (domain);
  #else
  	return mono_domain_memory_manager (domain);
  #endif
  }
  
  static inline void *
  m_class_alloc (MonoDomain *domain, MonoClass *klass, guint size)
  {
  	return mono_mem_manager_alloc (m_class_get_mem_manager (domain, klass), size);
  }
  
  static inline void *
  m_class_alloc0 (MonoDomain *domain, MonoClass *klass, guint size)
  {
  	return mono_mem_manager_alloc0 (m_class_get_mem_manager (domain, klass), size);
  }
  
  static inline MonoMemoryManager*
  m_method_get_mem_manager (MonoDomain *domain, MonoMethod *method)
  {
  #ifdef ENABLE_NETCORE
  	// FIXME:
  	return mono_domain_memory_manager (domain);
  #else
  	return mono_domain_memory_manager (domain);
  #endif
  }
  
  static inline void *
  m_method_alloc (MonoDomain *domain, MonoMethod *method, guint size)
  {
  	return mono_mem_manager_alloc (m_method_get_mem_manager (domain, method), size);
  }
  
  static inline void *
  m_method_alloc0 (MonoDomain *domain, MonoMethod *method, guint size)
  {
  	return mono_mem_manager_alloc0 (m_method_get_mem_manager (domain, method), size);
  }
  
  // Enum and static storage for JIT icalls.
  #include "jit-icall-reg.h"
  
  /*Now that everything has been defined, let's include the inline functions */
  #include <mono/metadata/class-inlines.h>
  
  #endif /* __MONO_METADATA_CLASS_INTERNALS_H__ */
  