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julia.h
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julia.h
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// This file is a part of Julia. License is MIT: https://julialang.org/license
#ifndef JULIA_H
#define JULIA_H
//** Configuration options that affect the Julia ABI **//
// if this is not defined, only individual dimension sizes are
// stored and not total length, to save space.
#define STORE_ARRAY_LEN
//** End Configuration options **//
#include "libsupport.h"
#include <stdint.h>
#include <string.h>
#include "htable.h"
#include "arraylist.h"
#include <setjmp.h>
#ifndef _OS_WINDOWS_
# define jl_jmp_buf sigjmp_buf
# if defined(_CPU_ARM_)
# define MAX_ALIGN 8
# elif defined(_CPU_AARCH64_)
// int128 is 16 bytes aligned on aarch64
# define MAX_ALIGN 16
# else
# define MAX_ALIGN sizeof(void*)
# endif
#else
# define jl_jmp_buf jmp_buf
# include <malloc.h> //for _resetstkoflw
# define MAX_ALIGN 8
#endif
#ifdef _P64
#define NWORDS(sz) (((sz)+7)>>3)
#else
#define NWORDS(sz) (((sz)+3)>>2)
#endif
#if defined(__GNUC__)
# define JL_NORETURN __attribute__ ((noreturn))
# define JL_CONST_FUNC __attribute__((const))
#elif defined(_COMPILER_MICROSOFT_)
# define JL_NORETURN __declspec(noreturn)
// This is the closest I can find for __attribute__((const))
# define JL_CONST_FUNC __declspec(noalias)
#else
# define JL_NORETURN
# define JL_CONST_FUNC
#endif
#define container_of(ptr, type, member) \
((type *) ((char *)(ptr) - offsetof(type, member)))
typedef struct _jl_taggedvalue_t jl_taggedvalue_t;
#include <julia_threads.h>
#ifdef __cplusplus
extern "C" {
#endif
// core data types ------------------------------------------------------------
// the common fields are hidden before the pointer, but the following macro is
// used to indicate which types below are subtypes of jl_value_t
#define JL_DATA_TYPE
typedef struct _jl_value_t jl_value_t;
struct _jl_taggedvalue_t {
union {
uintptr_t header;
jl_taggedvalue_t *next;
jl_value_t *type; // 16-byte aligned
struct {
uintptr_t gc:2;
} bits;
};
// jl_value_t value;
};
#define jl_astaggedvalue(v) \
((jl_taggedvalue_t*)((char*)(v) - sizeof(jl_taggedvalue_t)))
#define jl_valueof(v) \
((jl_value_t*)((char*)(v) + sizeof(jl_taggedvalue_t)))
#define jl_typeof(v) \
((jl_value_t*)(jl_astaggedvalue(v)->header & ~(uintptr_t)15))
static inline void jl_set_typeof(void *v, void *t)
{
// Do not call this on a value that is already initialized.
jl_taggedvalue_t *tag = jl_astaggedvalue(v);
tag->type = (jl_value_t*)t;
}
#define jl_typeis(v,t) (jl_typeof(v)==(jl_value_t*)(t))
// Symbols are interned strings (hash-consed) stored as an invasive binary tree.
// The string data is nul-terminated and hangs off the end of the struct.
typedef struct _jl_sym_t {
JL_DATA_TYPE
struct _jl_sym_t *left;
struct _jl_sym_t *right;
uintptr_t hash; // precomputed hash value
// JL_ATTRIBUTE_ALIGN_PTRSIZE(char name[]);
} jl_sym_t;
// A numbered SSA value, for optimized code analysis and generation
// the `id` is a unique, small number
typedef struct _jl_ssavalue_t {
JL_DATA_TYPE
ssize_t id;
} jl_ssavalue_t;
// A SimpleVector is an immutable pointer array
// Data is stored at the end of this variable-length struct.
typedef struct {
JL_DATA_TYPE
size_t length;
// pointer size aligned
// jl_value_t *data[];
} jl_svec_t;
typedef struct {
/*
how - allocation style
0 = data is inlined, or a foreign pointer we don't manage
1 = julia-allocated buffer that needs to be marked
2 = malloc-allocated pointer this array object manages
3 = has a pointer to the Array that owns the data
*/
uint16_t how:2;
uint16_t ndims:10;
uint16_t pooled:1;
uint16_t ptrarray:1; // representation is pointer array
uint16_t isshared:1; // data is shared by multiple Arrays
uint16_t isaligned:1; // data allocated with memalign
} jl_array_flags_t;
typedef struct {
JL_DATA_TYPE
void *data;
#ifdef STORE_ARRAY_LEN
size_t length;
#endif
jl_array_flags_t flags;
uint16_t elsize;
uint32_t offset; // for 1-d only. does not need to get big.
size_t nrows;
union {
// 1d
size_t maxsize;
// Nd
size_t ncols;
};
// other dim sizes go here for ndims > 2
// followed by alignment padding and inline data, or owner pointer
} jl_array_t;
// compute # of extra words needed to store dimensions
STATIC_INLINE int jl_array_ndimwords(uint32_t ndims)
{
return (ndims < 3 ? 0 : ndims-2);
}
typedef struct _jl_datatype_t jl_tupletype_t;
// TypeMap is an implicitly defined type
// that can consist of any of the following nodes:
// typedef TypeMap Union{TypeMapLevel, TypeMapEntry, Void}
// it forms a roughly tree-shaped structure, consisting of nodes of TypeMapLevels
// which split the tree when possible, for example based on the key into the tuple type at `offs`
// when key is a leaftype, (but only when the tree has enough entries for this to be
// more efficient than storing them sorted linearly)
// otherwise the leaf entries are stored sorted, linearly
union jl_typemap_t {
struct _jl_typemap_level_t *node;
struct _jl_typemap_entry_t *leaf;
struct _jl_value_t *unknown; // nothing
};
// "jlcall" calling convention signatures.
// This defines the default ABI used by compiled julia functions.
typedef jl_value_t *(*jl_fptr_t)(jl_value_t*, jl_value_t**, uint32_t);
typedef jl_value_t *(*jl_fptr_sparam_t)(jl_svec_t*, jl_value_t*, jl_value_t**, uint32_t);
typedef struct _jl_llvm_functions_t {
void *functionObject; // jlcall llvm Function
void *specFunctionObject; // specialized llvm Function
} jl_llvm_functions_t;
// This type describes a single method definition, and stores data
// shared by the specializations of a function.
typedef struct _jl_method_t {
JL_DATA_TYPE
jl_sym_t *name; // for error reporting
struct _jl_module_t *module;
jl_sym_t *file;
int32_t line;
// method's type signature. partly redundant with lambda_template->specTypes
jl_tupletype_t *sig;
// bound type variables (static parameters). redundant with TypeMapEntry->tvars
jl_svec_t *tvars;
// list of potentially-ambiguous methods (nothing = none, Vector{Any} of Methods otherwise)
jl_value_t *ambig;
// table of all argument types for which we've inferred or compiled this code
union jl_typemap_t specializations;
// the AST template (or, for isstaged, code for the generator)
struct _jl_lambda_info_t *lambda_template;
jl_array_t *roots; // pointers in generated code (shared to reduce memory)
// cache of specializations of this method for invoke(), i.e.
// cases where this method was called even though it was not necessarily
// the most specific for the argument types.
union jl_typemap_t invokes;
int32_t called; // bit flags: whether each of the first 8 arguments is called
int8_t isstaged;
// if there are intrinsic calls, sparams are probably required to compile successfully,
// and so unspecialized will be created for each linfo instead of using linfo->def->template
// 0 = no, 1 = yes, 2 = not yet known
uint8_t needs_sparam_vals_ducttape;
uint8_t traced;
} jl_method_t;
// This holds data for a single executable function body:
// code in Julia IR, static parameters, and (if it has been compiled)
// a function pointer.
typedef struct _jl_lambda_info_t {
JL_DATA_TYPE
jl_value_t *rettype;
jl_svec_t *sparam_syms; // sparams is a vector of values indexed by symbols
jl_svec_t *sparam_vals;
jl_tupletype_t *specTypes; // argument types this was specialized for
jl_value_t *code; // compressed uint8 array, or Any array of statements
jl_value_t *slottypes;
jl_value_t *ssavaluetypes; // types of ssa values
jl_array_t *slotnames; // names of local variables
jl_array_t *slotflags; // local var bit flags
struct _jl_lambda_info_t *unspecialized_ducttape; // if template can't be compiled due to intrinsics, an un-inferred executable copy may get stored here
jl_method_t *def; // method this is specialized from, (null if this is a toplevel thunk)
int32_t nargs;
int8_t isva;
int8_t inferred;
int8_t pure;
int8_t inlineable;
int8_t inInference; // flags to tell if inference is running on this function
int8_t inCompile; // flag to tell if codegen is running on this function
int8_t jlcall_api; // the c-abi for fptr; 0 = jl_fptr_t, 1 = jl_fptr_sparam_t
int8_t compile_traced; // if set will notify callback if this linfo is compiled
jl_fptr_t fptr; // jlcall entry point
// hidden fields:
// On the old JIT, handles to all Functions generated for this linfo
// For the new JITs, handles to declarations in the shadow module
// with the same name as the generated functions for this linfo, suitable
// for referencing in LLVM IR
jl_llvm_functions_t functionObjectsDecls;
int32_t functionID; // index that this function will have in the codegen table
int32_t specFunctionID; // index that this specFunction will have in the codegen table
} jl_lambda_info_t;
// all values are callable as Functions
typedef jl_value_t jl_function_t;
// a TypeConstructor (typealias)
// for example, Vector{T}:
// body is the Vector{T} <: Type
// parameters is the set {T}, the bound TypeVars in body
typedef struct {
JL_DATA_TYPE
jl_svec_t *parameters;
jl_value_t *body;
} jl_typector_t;
// represents the "name" part of a DataType, describing the syntactic structure
// of a type and storing all data common to different instantiations of the type,
// including a cache for hash-consed allocation of DataType objects.
typedef struct {
JL_DATA_TYPE
jl_sym_t *name;
struct _jl_module_t *module;
jl_svec_t *names; // field names
// if this is the name of a parametric type, this field points to the
// original type.
// a type alias, for example, might make a type constructor that is
// not the original.
jl_value_t *primary;
jl_svec_t *cache; // sorted array
jl_svec_t *linearcache; // unsorted array
intptr_t uid;
struct _jl_methtable_t *mt;
} jl_typename_t;
typedef struct {
JL_DATA_TYPE
jl_svec_t *types;
} jl_uniontype_t;
typedef struct {
uint8_t offset; // offset relative to data start, excluding type tag
uint8_t size:7;
uint8_t isptr:1;
} jl_fielddesc8_t;
typedef struct {
uint16_t offset; // offset relative to data start, excluding type tag
uint16_t size:15;
uint16_t isptr:1;
} jl_fielddesc16_t;
typedef struct {
uint32_t offset; // offset relative to data start, excluding type tag
uint32_t size:31;
uint32_t isptr:1;
} jl_fielddesc32_t;
typedef struct _jl_datatype_t {
JL_DATA_TYPE
jl_typename_t *name;
struct _jl_datatype_t *super;
jl_svec_t *parameters;
jl_svec_t *types;
jl_value_t *instance; // for singletons
int32_t size;
uint8_t abstract;
uint8_t mutabl;
uint8_t pointerfree;
int32_t ninitialized;
// memoized properties
int32_t depth;
int8_t hastypevars; // bound
int8_t haswildcard; // unbound
int8_t isleaftype;
// hidden fields:
uint32_t nfields;
uint32_t alignment : 29; // strictest alignment over all fields
uint32_t haspadding : 1; // has internal undefined bytes
uint32_t fielddesc_type : 2; // 0 -> 8, 1 -> 16, 2 -> 32
uint32_t uid;
void *struct_decl; //llvm::Type*
void *ditype; // llvm::MDNode* to be used as llvm::DIType(ditype)
// Last field needs to be pointer size aligned
// union {
// jl_fielddesc8_t field8[];
// jl_fielddesc16_t field16[];
// jl_fielddesc32_t field32[];
// };
} jl_datatype_t;
typedef struct {
JL_DATA_TYPE
jl_sym_t *name;
jl_value_t *lb; // lower bound
jl_value_t *ub; // upper bound
uint8_t bound; // part of a constraint environment
} jl_tvar_t;
typedef struct {
JL_DATA_TYPE
jl_value_t *value;
} jl_weakref_t;
typedef struct {
// not first-class
jl_sym_t *name;
jl_value_t *value;
jl_value_t *globalref; // cached GlobalRef for this binding
struct _jl_module_t *owner; // for individual imported bindings
unsigned constp:1;
unsigned exportp:1;
unsigned imported:1;
unsigned deprecated:1;
} jl_binding_t;
typedef struct _jl_module_t {
JL_DATA_TYPE
jl_sym_t *name;
struct _jl_module_t *parent;
htable_t bindings;
arraylist_t usings; // modules with all bindings potentially imported
uint8_t istopmod;
uint64_t uuid;
uint32_t counter;
} jl_module_t;
// one Type-to-Value entry
typedef struct _jl_typemap_entry_t {
JL_DATA_TYPE
struct _jl_typemap_entry_t *next; // invasive linked list
jl_tupletype_t *sig; // the type signature for this entry
jl_svec_t *tvars; // the bound type variables for sig
jl_tupletype_t *simplesig; // a simple signature for fast rejection
jl_svec_t *guardsigs;
union {
jl_value_t *value;
jl_lambda_info_t *linfo; // [nullable] for guard entries
jl_method_t *method;
} func;
// memoized properties of sig:
int8_t isleafsig; // isleaftype(sig) & !any(isType, sig) : unsorted and very fast
int8_t issimplesig; // all(isleaftype | isAny | isType | isVararg, sig) : sorted and fast
int8_t va; // isVararg(sig)
} jl_typemap_entry_t;
// one level in a TypeMap tree
// indexed by key if it is a sublevel in an array
typedef struct _jl_typemap_level_t {
JL_DATA_TYPE
jl_array_t *arg1; // Array{union jl_typemap_t}
jl_array_t *targ; // Array{union jl_typemap_t}
jl_typemap_entry_t *linear; // union jl_typemap_t (but no more levels)
union jl_typemap_t any; // type at offs is Any
jl_value_t *key; // [nullable]
} jl_typemap_level_t;
// contains the TypeMap for one Type
typedef struct _jl_methtable_t {
JL_DATA_TYPE
jl_sym_t *name;
union jl_typemap_t defs;
union jl_typemap_t cache;
intptr_t max_args; // max # of non-vararg arguments in a signature
jl_value_t *kwsorter; // keyword argument sorter function
jl_module_t *module; // used for incremental serialization to locate original binding
#ifdef JL_GF_PROFILE
int ncalls;
#endif
} jl_methtable_t;
typedef struct {
JL_DATA_TYPE
jl_sym_t *head;
jl_array_t *args;
jl_value_t *etype;
} jl_expr_t;
// constants and type objects -------------------------------------------------
extern JL_DLLEXPORT jl_datatype_t *jl_any_type;
extern JL_DLLEXPORT jl_datatype_t *jl_type_type;
extern JL_DLLEXPORT jl_tvar_t *jl_typetype_tvar;
extern JL_DLLEXPORT jl_datatype_t *jl_typetype_type;
extern JL_DLLEXPORT jl_value_t *jl_ANY_flag;
extern JL_DLLEXPORT jl_datatype_t *jl_typename_type;
extern JL_DLLEXPORT jl_datatype_t *jl_typector_type;
extern JL_DLLEXPORT jl_datatype_t *jl_sym_type;
extern JL_DLLEXPORT jl_datatype_t *jl_symbol_type;
extern JL_DLLEXPORT jl_datatype_t *jl_ssavalue_type;
extern JL_DLLEXPORT jl_datatype_t *jl_abstractslot_type;
extern JL_DLLEXPORT jl_datatype_t *jl_slotnumber_type;
extern JL_DLLEXPORT jl_datatype_t *jl_typedslot_type;
extern JL_DLLEXPORT jl_datatype_t *jl_simplevector_type;
extern JL_DLLEXPORT jl_typename_t *jl_tuple_typename;
extern JL_DLLEXPORT jl_typename_t *jl_vecelement_typename;
extern JL_DLLEXPORT jl_datatype_t *jl_anytuple_type;
#define jl_tuple_type jl_anytuple_type
extern JL_DLLEXPORT jl_datatype_t *jl_anytuple_type_type;
extern JL_DLLEXPORT jl_datatype_t *jl_vararg_type;
extern JL_DLLEXPORT jl_datatype_t *jl_tvar_type;
extern JL_DLLEXPORT jl_datatype_t *jl_task_type;
extern JL_DLLEXPORT jl_datatype_t *jl_function_type;
extern JL_DLLEXPORT jl_datatype_t *jl_builtin_type;
extern JL_DLLEXPORT jl_datatype_t *jl_uniontype_type;
extern JL_DLLEXPORT jl_datatype_t *jl_datatype_type;
extern JL_DLLEXPORT jl_value_t *jl_bottom_type;
extern JL_DLLEXPORT jl_datatype_t *jl_lambda_info_type;
extern JL_DLLEXPORT jl_datatype_t *jl_method_type;
extern JL_DLLEXPORT jl_datatype_t *jl_module_type;
extern JL_DLLEXPORT jl_datatype_t *jl_abstractarray_type;
extern JL_DLLEXPORT jl_datatype_t *jl_densearray_type;
extern JL_DLLEXPORT jl_datatype_t *jl_array_type;
extern JL_DLLEXPORT jl_typename_t *jl_array_typename;
extern JL_DLLEXPORT jl_datatype_t *jl_weakref_type;
extern JL_DLLEXPORT jl_datatype_t *jl_string_type;
extern JL_DLLEXPORT jl_datatype_t *jl_errorexception_type;
extern JL_DLLEXPORT jl_datatype_t *jl_argumenterror_type;
extern JL_DLLEXPORT jl_datatype_t *jl_loaderror_type;
extern JL_DLLEXPORT jl_datatype_t *jl_initerror_type;
extern JL_DLLEXPORT jl_datatype_t *jl_typeerror_type;
extern JL_DLLEXPORT jl_datatype_t *jl_methoderror_type;
extern JL_DLLEXPORT jl_datatype_t *jl_undefvarerror_type;
extern JL_DLLEXPORT jl_value_t *jl_stackovf_exception;
extern JL_DLLEXPORT jl_value_t *jl_memory_exception;
extern JL_DLLEXPORT jl_value_t *jl_readonlymemory_exception;
extern JL_DLLEXPORT jl_value_t *jl_diverror_exception;
extern JL_DLLEXPORT jl_value_t *jl_domain_exception;
extern JL_DLLEXPORT jl_value_t *jl_overflow_exception;
extern JL_DLLEXPORT jl_value_t *jl_inexact_exception;
extern JL_DLLEXPORT jl_value_t *jl_undefref_exception;
extern JL_DLLEXPORT jl_value_t *jl_interrupt_exception;
extern JL_DLLEXPORT jl_datatype_t *jl_boundserror_type;
extern JL_DLLEXPORT jl_value_t *jl_an_empty_vec_any;
extern JL_DLLEXPORT jl_datatype_t *jl_bool_type;
extern JL_DLLEXPORT jl_datatype_t *jl_char_type;
extern JL_DLLEXPORT jl_datatype_t *jl_int8_type;
extern JL_DLLEXPORT jl_datatype_t *jl_uint8_type;
extern JL_DLLEXPORT jl_datatype_t *jl_int16_type;
extern JL_DLLEXPORT jl_datatype_t *jl_uint16_type;
extern JL_DLLEXPORT jl_datatype_t *jl_int32_type;
extern JL_DLLEXPORT jl_datatype_t *jl_uint32_type;
extern JL_DLLEXPORT jl_datatype_t *jl_int64_type;
extern JL_DLLEXPORT jl_datatype_t *jl_uint64_type;
extern JL_DLLEXPORT jl_datatype_t *jl_float16_type;
extern JL_DLLEXPORT jl_datatype_t *jl_float32_type;
extern JL_DLLEXPORT jl_datatype_t *jl_float64_type;
extern JL_DLLEXPORT jl_datatype_t *jl_floatingpoint_type;
extern JL_DLLEXPORT jl_datatype_t *jl_number_type;
extern JL_DLLEXPORT jl_datatype_t *jl_void_type;
extern JL_DLLEXPORT jl_datatype_t *jl_complex_type;
extern JL_DLLEXPORT jl_datatype_t *jl_signed_type;
extern JL_DLLEXPORT jl_datatype_t *jl_voidpointer_type;
extern JL_DLLEXPORT jl_datatype_t *jl_pointer_type;
extern JL_DLLEXPORT jl_datatype_t *jl_ref_type;
extern JL_DLLEXPORT jl_value_t *jl_array_uint8_type;
extern JL_DLLEXPORT jl_value_t *jl_array_any_type;
extern JL_DLLEXPORT jl_value_t *jl_array_symbol_type;
extern JL_DLLEXPORT jl_datatype_t *jl_expr_type;
extern JL_DLLEXPORT jl_datatype_t *jl_globalref_type;
extern JL_DLLEXPORT jl_datatype_t *jl_linenumbernode_type;
extern JL_DLLEXPORT jl_datatype_t *jl_labelnode_type;
extern JL_DLLEXPORT jl_datatype_t *jl_gotonode_type;
extern JL_DLLEXPORT jl_datatype_t *jl_quotenode_type;
extern JL_DLLEXPORT jl_datatype_t *jl_newvarnode_type;
extern JL_DLLEXPORT jl_datatype_t *jl_intrinsic_type;
extern JL_DLLEXPORT jl_datatype_t *jl_methtable_type;
extern JL_DLLEXPORT jl_datatype_t *jl_typemap_level_type;
extern JL_DLLEXPORT jl_datatype_t *jl_typemap_entry_type;
extern JL_DLLEXPORT jl_svec_t *jl_emptysvec;
extern JL_DLLEXPORT jl_value_t *jl_emptytuple;
extern JL_DLLEXPORT jl_value_t *jl_true;
extern JL_DLLEXPORT jl_value_t *jl_false;
extern JL_DLLEXPORT jl_value_t *jl_nothing;
// some important symbols
extern jl_sym_t *call_sym; extern jl_sym_t *empty_sym;
extern jl_sym_t *dots_sym; extern jl_sym_t *vararg_sym;
extern jl_sym_t *quote_sym; extern jl_sym_t *newvar_sym;
extern jl_sym_t *top_sym; extern jl_sym_t *dot_sym;
extern jl_sym_t *line_sym; extern jl_sym_t *toplevel_sym;
extern jl_sym_t *core_sym; extern jl_sym_t *globalref_sym;
extern JL_DLLEXPORT jl_sym_t *jl_incomplete_sym;
extern jl_sym_t *error_sym; extern jl_sym_t *amp_sym;
extern jl_sym_t *module_sym; extern jl_sym_t *colons_sym;
extern jl_sym_t *export_sym; extern jl_sym_t *import_sym;
extern jl_sym_t *importall_sym; extern jl_sym_t *using_sym;
extern jl_sym_t *goto_sym; extern jl_sym_t *goto_ifnot_sym;
extern jl_sym_t *label_sym; extern jl_sym_t *return_sym;
extern jl_sym_t *lambda_sym; extern jl_sym_t *assign_sym;
extern jl_sym_t *null_sym; extern jl_sym_t *body_sym;
extern jl_sym_t *method_sym; extern jl_sym_t *slot_sym;
extern jl_sym_t *enter_sym; extern jl_sym_t *leave_sym;
extern jl_sym_t *exc_sym; extern jl_sym_t *new_sym;
extern jl_sym_t *static_typeof_sym; extern jl_sym_t *compiler_temp_sym;
extern jl_sym_t *const_sym; extern jl_sym_t *thunk_sym;
extern jl_sym_t *anonymous_sym; extern jl_sym_t *underscore_sym;
extern jl_sym_t *abstracttype_sym; extern jl_sym_t *bitstype_sym;
extern jl_sym_t *compositetype_sym; extern jl_sym_t *type_goto_sym;
extern jl_sym_t *global_sym; extern jl_sym_t *unused_sym;
extern jl_sym_t *boundscheck_sym; extern jl_sym_t *inbounds_sym;
extern jl_sym_t *copyast_sym; extern jl_sym_t *fastmath_sym;
extern jl_sym_t *pure_sym; extern jl_sym_t *simdloop_sym;
extern jl_sym_t *meta_sym; extern jl_sym_t *list_sym;
extern jl_sym_t *inert_sym; extern jl_sym_t *static_parameter_sym;
extern jl_sym_t *polly_sym;
// gc -------------------------------------------------------------------------
typedef struct _jl_gcframe_t {
size_t nroots;
struct _jl_gcframe_t *prev;
// actual roots go here
} jl_gcframe_t;
// NOTE: it is the caller's responsibility to make sure arguments are
// rooted such that the gc can see them on the stack.
// `foo(f(), g())` is not safe,
// since the result of `f()` is not rooted during the call to `g()`,
// and the arguments to foo are not gc-protected during the call to foo.
// foo can't do anything about it, so the caller must do:
// jl_value_t *x=NULL, *y=NULL; JL_GC_PUSH2(&x, &y);
// x = f(); y = g(); foo(x, y)
#define jl_pgcstack (jl_get_ptls_states()->pgcstack)
#define JL_GC_PUSH1(arg1) \
void *__gc_stkf[] = {(void*)3, jl_pgcstack, arg1}; \
jl_pgcstack = (jl_gcframe_t*)__gc_stkf;
#define JL_GC_PUSH2(arg1, arg2) \
void *__gc_stkf[] = {(void*)5, jl_pgcstack, arg1, arg2}; \
jl_pgcstack = (jl_gcframe_t*)__gc_stkf;
#define JL_GC_PUSH3(arg1, arg2, arg3) \
void *__gc_stkf[] = {(void*)7, jl_pgcstack, arg1, arg2, arg3}; \
jl_pgcstack = (jl_gcframe_t*)__gc_stkf;
#define JL_GC_PUSH4(arg1, arg2, arg3, arg4) \
void *__gc_stkf[] = {(void*)9, jl_pgcstack, arg1, arg2, arg3, arg4}; \
jl_pgcstack = (jl_gcframe_t*)__gc_stkf;
#define JL_GC_PUSH5(arg1, arg2, arg3, arg4, arg5) \
void *__gc_stkf[] = {(void*)11, jl_pgcstack, arg1, arg2, arg3, arg4, arg5}; \
jl_pgcstack = (jl_gcframe_t*)__gc_stkf;
#define JL_GC_PUSHARGS(rts_var,n) \
rts_var = ((jl_value_t**)alloca(((n)+2)*sizeof(jl_value_t*)))+2; \
((void**)rts_var)[-2] = (void*)(((size_t)(n))<<1); \
((void**)rts_var)[-1] = jl_pgcstack; \
memset((void*)rts_var, 0, (n)*sizeof(jl_value_t*)); \
jl_pgcstack = (jl_gcframe_t*)&(((void**)rts_var)[-2])
#define JL_GC_POP() (jl_pgcstack = jl_pgcstack->prev)
JL_DLLEXPORT int jl_gc_enable(int on);
JL_DLLEXPORT int jl_gc_is_enabled(void);
JL_DLLEXPORT int64_t jl_gc_total_bytes(void);
JL_DLLEXPORT uint64_t jl_gc_total_hrtime(void);
JL_DLLEXPORT int64_t jl_gc_diff_total_bytes(void);
JL_DLLEXPORT void jl_gc_collect(int);
JL_DLLEXPORT void jl_gc_add_finalizer(jl_value_t *v, jl_function_t *f);
JL_DLLEXPORT void jl_finalize(jl_value_t *o);
JL_DLLEXPORT jl_weakref_t *jl_gc_new_weakref(jl_value_t *value);
JL_DLLEXPORT jl_value_t *jl_gc_alloc_0w(void);
JL_DLLEXPORT jl_value_t *jl_gc_alloc_1w(void);
JL_DLLEXPORT jl_value_t *jl_gc_alloc_2w(void);
JL_DLLEXPORT jl_value_t *jl_gc_alloc_3w(void);
JL_DLLEXPORT jl_value_t *jl_gc_allocobj(size_t sz);
JL_DLLEXPORT void jl_clear_malloc_data(void);
// GC write barriers
JL_DLLEXPORT void jl_gc_queue_root(jl_value_t *root); // root isa jl_value_t*
// Do NOT put a safepoint here
STATIC_INLINE void jl_gc_wb(void *parent, void *ptr)
{
// parent and ptr isa jl_value_t*
if (__unlikely(jl_astaggedvalue(parent)->bits.gc == 3 &&
(jl_astaggedvalue(ptr)->bits.gc & 1) == 0))
jl_gc_queue_root((jl_value_t*)parent);
}
STATIC_INLINE void jl_gc_wb_back(void *ptr) // ptr isa jl_value_t*
{
// if ptr is old
if (__unlikely(jl_astaggedvalue(ptr)->bits.gc & 2)) {
jl_gc_queue_root((jl_value_t*)ptr);
}
}
JL_DLLEXPORT void *jl_gc_managed_malloc(size_t sz);
JL_DLLEXPORT void *jl_gc_managed_realloc(void *d, size_t sz, size_t oldsz,
int isaligned, jl_value_t *owner);
// object accessors -----------------------------------------------------------
#define jl_svec_len(t) (((jl_svec_t*)(t))->length)
#define jl_svec_set_len_unsafe(t,n) (((jl_svec_t*)(t))->length=(n))
#define jl_svec_data(t) ((jl_value_t**)((char*)(t) + sizeof(jl_svec_t)))
STATIC_INLINE jl_value_t *jl_svecref(void *t, size_t i)
{
assert(jl_typeis(t,jl_simplevector_type));
assert(i < jl_svec_len(t));
return jl_svec_data(t)[i];
}
STATIC_INLINE jl_value_t *jl_svecset(void *t, size_t i, void *x)
{
assert(jl_typeis(t,jl_simplevector_type));
assert(i < jl_svec_len(t));
jl_svec_data(t)[i] = (jl_value_t*)x;
if (x) jl_gc_wb(t, x);
return (jl_value_t*)x;
}
#ifdef STORE_ARRAY_LEN
#define jl_array_len(a) (((jl_array_t*)(a))->length)
#else
JL_DLLEXPORT size_t jl_array_len_(jl_array_t *a);
#define jl_array_len(a) jl_array_len_((jl_array_t*)(a))
#endif
#define jl_array_data(a) ((void*)((jl_array_t*)(a))->data)
#define jl_array_dim(a,i) ((&((jl_array_t*)(a))->nrows)[i])
#define jl_array_dim0(a) (((jl_array_t*)(a))->nrows)
#define jl_array_nrows(a) (((jl_array_t*)(a))->nrows)
#define jl_array_ndims(a) ((int32_t)(((jl_array_t*)a)->flags.ndims))
#define jl_array_data_owner_offset(ndims) (offsetof(jl_array_t,ncols) + sizeof(size_t)*(1+jl_array_ndimwords(ndims))) // in bytes
#define jl_array_data_owner(a) (*((jl_value_t**)((char*)a + jl_array_data_owner_offset(jl_array_ndims(a)))))
STATIC_INLINE jl_value_t *jl_array_ptr_ref(void *a, size_t i)
{
assert(i < jl_array_len(a));
return ((jl_value_t**)(jl_array_data(a)))[i];
}
STATIC_INLINE jl_value_t *jl_array_ptr_set(void *a, size_t i, void *x)
{
assert(i < jl_array_len(a));
((jl_value_t**)(jl_array_data(a)))[i] = (jl_value_t*)x;
if (x) {
if (((jl_array_t*)a)->flags.how == 3) {
a = jl_array_data_owner(a);
}
jl_gc_wb(a, x);
}
return (jl_value_t*)x;
}
STATIC_INLINE uint8_t jl_array_uint8_ref(void *a, size_t i)
{
assert(i < jl_array_len(a));
assert(jl_typeis(a, jl_array_uint8_type));
return ((uint8_t*)(jl_array_data(a)))[i];
}
STATIC_INLINE void jl_array_uint8_set(void *a, size_t i, uint8_t x)
{
assert(i < jl_array_len(a));
assert(jl_typeis(a, jl_array_uint8_type));
((uint8_t*)(jl_array_data(a)))[i] = x;
}
#define jl_exprarg(e,n) (((jl_value_t**)jl_array_data(((jl_expr_t*)(e))->args))[n])
#define jl_exprargset(e, n, v) jl_array_ptr_set(((jl_expr_t*)(e))->args, n, v)
#define jl_expr_nargs(e) jl_array_len(((jl_expr_t*)(e))->args)
#define jl_fieldref(s,i) jl_get_nth_field(((jl_value_t*)s),i)
#define jl_nfields(v) jl_datatype_nfields(jl_typeof(v))
// Not using jl_fieldref to avoid allocations
#define jl_linenode_line(x) (((intptr_t*)x)[0])
#define jl_labelnode_label(x) (((intptr_t*)x)[0])
#define jl_slot_number(x) (((intptr_t*)x)[0])
#define jl_typedslot_get_type(x) (((jl_value_t**)x)[1])
#define jl_gotonode_label(x) (((intptr_t*)x)[0])
#define jl_globalref_mod(s) (*(jl_module_t**)s)
#define jl_globalref_name(s) (((jl_sym_t**)s)[1])
#define jl_nparams(t) jl_svec_len(((jl_datatype_t*)(t))->parameters)
#define jl_tparam0(t) jl_svecref(((jl_datatype_t*)(t))->parameters, 0)
#define jl_tparam1(t) jl_svecref(((jl_datatype_t*)(t))->parameters, 1)
#define jl_tparam(t,i) jl_svecref(((jl_datatype_t*)(t))->parameters, i)
// get a pointer to the data in a datatype
#define jl_data_ptr(v) ((jl_value_t**)v)
#define jl_array_ptr_data(a) ((jl_value_t**)((jl_array_t*)a)->data)
#define jl_string_data(s) ((char*)((jl_array_t*)jl_data_ptr(s)[0])->data)
#define jl_string_len(s) (jl_array_len((jl_array_t*)(jl_data_ptr(s)[0])))
#define jl_iostr_data(s) ((char*)((jl_array_t*)jl_data_ptr(s)[0])->data)
#define jl_gf_mtable(f) (((jl_datatype_t*)jl_typeof(f))->name->mt)
#define jl_gf_name(f) (jl_gf_mtable(f)->name)
// struct type info
#define jl_field_name(st,i) (jl_sym_t*)jl_svecref(((jl_datatype_t*)st)->name->names, (i))
#define jl_field_type(st,i) jl_svecref(((jl_datatype_t*)st)->types, (i))
#define jl_datatype_size(t) (((jl_datatype_t*)t)->size)
#define jl_datatype_nfields(t) (((jl_datatype_t*)(t))->nfields)
// inline version with strong type check to detect typos in a `->name` chain
STATIC_INLINE char *jl_symbol_name_(jl_sym_t *s)
{
return (char*)s + LLT_ALIGN(sizeof(jl_sym_t), sizeof(void*));
}
#define jl_symbol_name(s) jl_symbol_name_(s)
#define jl_datatype_fields(d) ((char*)(d) + sizeof(jl_datatype_t))
#define DEFINE_FIELD_ACCESSORS(f) \
static inline uint32_t jl_field_##f(jl_datatype_t *st, int i) \
{ \
assert(i >= 0 && (size_t)i < jl_datatype_nfields(st)); \
if (st->fielddesc_type == 0) { \
return ((jl_fielddesc8_t*)jl_datatype_fields(st))[i].f; \
} \
else if (st->fielddesc_type == 1) { \
return ((jl_fielddesc16_t*)jl_datatype_fields(st))[i].f; \
} \
else { \
return ((jl_fielddesc32_t*)jl_datatype_fields(st))[i].f; \
} \
} \
static inline void jl_field_set##f(jl_datatype_t *st, int i, \
uint32_t val) \
{ \
assert(i >= 0 && (size_t)i < jl_datatype_nfields(st)); \
if (st->fielddesc_type == 0) { \
((jl_fielddesc8_t*)jl_datatype_fields(st))[i].f = val; \
} \
else if (st->fielddesc_type == 1) { \
((jl_fielddesc16_t*)jl_datatype_fields(st))[i].f = val; \
} \
else { \
((jl_fielddesc32_t*)jl_datatype_fields(st))[i].f = val; \
} \
}
DEFINE_FIELD_ACCESSORS(offset)
DEFINE_FIELD_ACCESSORS(size)
DEFINE_FIELD_ACCESSORS(isptr)
static inline uint32_t jl_fielddesc_size(int8_t fielddesc_type)
{
if (fielddesc_type == 0) {
return sizeof(jl_fielddesc8_t);
}
else if (fielddesc_type == 1) {
return sizeof(jl_fielddesc16_t);
}
else {
return sizeof(jl_fielddesc32_t);
}
}
#undef DEFINE_FIELD_ACCESSORS
// basic predicates -----------------------------------------------------------
#define jl_is_nothing(v) (((jl_value_t*)(v)) == ((jl_value_t*)jl_nothing))
#define jl_is_tuple(v) (((jl_datatype_t*)jl_typeof(v))->name == jl_tuple_typename)
#define jl_is_svec(v) jl_typeis(v,jl_simplevector_type)
#define jl_is_simplevector(v) jl_is_svec(v)
#define jl_is_datatype(v) jl_typeis(v,jl_datatype_type)
#define jl_is_pointerfree(t) (((jl_datatype_t*)t)->pointerfree)
#define jl_is_mutable(t) (((jl_datatype_t*)t)->mutabl)
#define jl_is_mutable_datatype(t) (jl_is_datatype(t) && (((jl_datatype_t*)t)->mutabl))
#define jl_is_immutable(t) (!((jl_datatype_t*)t)->mutabl)
#define jl_is_immutable_datatype(t) (jl_is_datatype(t) && (!((jl_datatype_t*)t)->mutabl))
#define jl_is_uniontype(v) jl_typeis(v,jl_uniontype_type)
#define jl_is_typevar(v) jl_typeis(v,jl_tvar_type)
#define jl_is_typector(v) jl_typeis(v,jl_typector_type)
#define jl_is_TypeConstructor(v) jl_typeis(v,jl_typector_type)
#define jl_is_typename(v) jl_typeis(v,jl_typename_type)
#define jl_is_int8(v) jl_typeis(v,jl_int8_type)
#define jl_is_int16(v) jl_typeis(v,jl_int16_type)
#define jl_is_int32(v) jl_typeis(v,jl_int32_type)
#define jl_is_int64(v) jl_typeis(v,jl_int64_type)
#define jl_is_uint8(v) jl_typeis(v,jl_uint8_type)
#define jl_is_uint16(v) jl_typeis(v,jl_uint16_type)
#define jl_is_uint32(v) jl_typeis(v,jl_uint32_type)
#define jl_is_uint64(v) jl_typeis(v,jl_uint64_type)
#define jl_is_float(v) jl_subtype(v,(jl_value_t*)jl_floatingpoint_type,1)
#define jl_is_floattype(v) jl_subtype(v,(jl_value_t*)jl_floatingpoint_type,0)
#define jl_is_float32(v) jl_typeis(v,jl_float32_type)
#define jl_is_float64(v) jl_typeis(v,jl_float64_type)
#define jl_is_bool(v) jl_typeis(v,jl_bool_type)
#define jl_is_symbol(v) jl_typeis(v,jl_sym_type)
#define jl_is_ssavalue(v) jl_typeis(v,jl_ssavalue_type)
#define jl_is_slot(v) (jl_typeis(v,jl_slotnumber_type) || jl_typeis(v,jl_typedslot_type))
#define jl_is_expr(v) jl_typeis(v,jl_expr_type)
#define jl_is_globalref(v) jl_typeis(v,jl_globalref_type)
#define jl_is_labelnode(v) jl_typeis(v,jl_labelnode_type)
#define jl_is_gotonode(v) jl_typeis(v,jl_gotonode_type)
#define jl_is_quotenode(v) jl_typeis(v,jl_quotenode_type)
#define jl_is_newvarnode(v) jl_typeis(v,jl_newvarnode_type)
#define jl_is_linenode(v) jl_typeis(v,jl_linenumbernode_type)
#define jl_is_lambda_info(v) jl_typeis(v,jl_lambda_info_type)
#define jl_is_method(v) jl_typeis(v,jl_method_type)
#define jl_is_module(v) jl_typeis(v,jl_module_type)
#define jl_is_mtable(v) jl_typeis(v,jl_methtable_type)
#define jl_is_task(v) jl_typeis(v,jl_task_type)
#define jl_is_string(v) jl_typeis(v,jl_string_type)
#define jl_is_cpointer(v) jl_is_cpointer_type(jl_typeof(v))
#define jl_is_pointer(v) jl_is_cpointer_type(jl_typeof(v))
STATIC_INLINE int jl_is_bitstype(void *v)
{
return (jl_is_datatype(v) && jl_is_immutable(v) &&
jl_datatype_nfields(v) == 0 &&
!((jl_datatype_t*)(v))->abstract &&
((jl_datatype_t*)(v))->size > 0);
}
STATIC_INLINE int jl_is_structtype(void *v)
{
return (jl_is_datatype(v) &&
(jl_datatype_nfields(v) > 0 ||
((jl_datatype_t*)(v))->size == 0) &&
!((jl_datatype_t*)(v))->abstract);
}
STATIC_INLINE int jl_isbits(void *t) // corresponding to isbits() in julia
{
return (jl_is_datatype(t) && !((jl_datatype_t*)t)->mutabl &&
((jl_datatype_t*)t)->pointerfree && !((jl_datatype_t*)t)->abstract);
}
STATIC_INLINE int jl_is_datatype_singleton(jl_datatype_t *d)
{
return (d->instance != NULL);
}
STATIC_INLINE int jl_is_datatype_make_singleton(jl_datatype_t *d)
{
return (!d->abstract && d->size == 0 && d != jl_sym_type && d->name != jl_array_typename &&
d->uid != 0 && (d->name->names == jl_emptysvec || !d->mutabl));
}
STATIC_INLINE int jl_is_abstracttype(void *v)
{
return (jl_is_datatype(v) && ((jl_datatype_t*)(v))->abstract);
}
STATIC_INLINE int jl_is_array_type(void *t)
{
return (jl_is_datatype(t) &&
((jl_datatype_t*)(t))->name == jl_array_typename);
}
STATIC_INLINE int jl_is_array(void *v)
{
jl_value_t *t = jl_typeof(v);
return jl_is_array_type(t);
}
STATIC_INLINE int jl_is_cpointer_type(jl_value_t *t)
{
return (jl_is_datatype(t) &&
((jl_datatype_t*)(t))->name == jl_pointer_type->name);
}
STATIC_INLINE int jl_is_abstract_ref_type(jl_value_t *t)
{
return (jl_is_datatype(t) &&
((jl_datatype_t*)(t))->name == jl_ref_type->name);
}
STATIC_INLINE jl_value_t *jl_is_ref_type(jl_value_t *t)
{
if (!jl_is_datatype(t)) return 0;
jl_datatype_t *dt = (jl_datatype_t*)t;
while (dt != jl_any_type && dt->name != dt->super->name) {
if (dt->name == jl_ref_type->name)
return (jl_value_t*)dt;
dt = dt->super;
}
return 0;
}
STATIC_INLINE int jl_is_tuple_type(void *t)
{
return (jl_is_datatype(t) &&
((jl_datatype_t*)(t))->name == jl_tuple_typename);
}
STATIC_INLINE int jl_is_vecelement_type(jl_value_t* t)
{
return (jl_is_datatype(t) &&
((jl_datatype_t*)(t))->name == jl_vecelement_typename);
}
STATIC_INLINE int jl_is_type_type(jl_value_t *v)
{
return (jl_is_datatype(v) &&
((jl_datatype_t*)(v))->name == jl_type_type->name);
}
// object identity
JL_DLLEXPORT int jl_egal(jl_value_t *a, jl_value_t *b);
JL_DLLEXPORT uintptr_t jl_object_id(jl_value_t *v);
// type predicates and basic operations
JL_DLLEXPORT int jl_is_leaf_type(jl_value_t *v);
JL_DLLEXPORT int jl_has_typevars(jl_value_t *v);
JL_DLLEXPORT int jl_subtype(jl_value_t *a, jl_value_t *b, int ta);
JL_DLLEXPORT int jl_types_equal(jl_value_t *a, jl_value_t *b);
JL_DLLEXPORT jl_value_t *jl_type_union(jl_svec_t *types);
JL_DLLEXPORT jl_value_t *jl_type_intersection(jl_value_t *a, jl_value_t *b);
JL_DLLEXPORT int jl_args_morespecific(jl_value_t *a, jl_value_t *b);
JL_DLLEXPORT const char *jl_typename_str(jl_value_t *v);
JL_DLLEXPORT const char *jl_typeof_str(jl_value_t *v);
JL_DLLEXPORT int jl_type_morespecific(jl_value_t *a, jl_value_t *b);
// type constructors
JL_DLLEXPORT jl_typename_t *jl_new_typename(jl_sym_t *name);
JL_DLLEXPORT jl_tvar_t *jl_new_typevar(jl_sym_t *name,jl_value_t *lb,jl_value_t *ub);
JL_DLLEXPORT jl_value_t *jl_apply_type(jl_value_t *tc, jl_svec_t *params);
JL_DLLEXPORT jl_tupletype_t *jl_apply_tuple_type(jl_svec_t *params);
JL_DLLEXPORT jl_tupletype_t *jl_apply_tuple_type_v(jl_value_t **p, size_t np);
JL_DLLEXPORT jl_datatype_t *jl_new_uninitialized_datatype(size_t nfields,
int8_t fielddesc_type);
JL_DLLEXPORT jl_datatype_t *jl_new_datatype(jl_sym_t *name, jl_datatype_t *super,
jl_svec_t *parameters,
jl_svec_t *fnames, jl_svec_t *ftypes,
int abstract, int mutabl,
int ninitialized);
JL_DLLEXPORT jl_datatype_t *jl_new_bitstype(jl_value_t *name,
jl_datatype_t *super,
jl_svec_t *parameters, size_t nbits);