/* * QuickJS Javascript Engine * * Copyright (c) 2017-2021 Fabrice Bellard * Copyright (c) 2017-2021 Charlie Gordon * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef QUICKJS_H #define QUICKJS_H #include #include #ifdef __cplusplus extern "C" { #endif #if defined(__GNUC__) || defined(__clang__) #define js_likely(x) __builtin_expect(!!(x), 1) #define js_unlikely(x) __builtin_expect(!!(x), 0) #define js_force_inline inline __attribute__((always_inline)) #define __js_printf_like(f, a) __attribute__((format(printf, f, a))) #else #define js_likely(x) (x) #define js_unlikely(x) (x) #define js_force_inline inline #define __js_printf_like(a, b) #endif #define JS_BOOL int typedef struct JSRuntime JSRuntime; typedef struct JSContext JSContext; typedef struct JSObject JSObject; typedef struct JSClass JSClass; typedef uint32_t JSClassID; typedef uint32_t JSAtom; #if INTPTR_MAX >= INT64_MAX #define JS_PTR64 #define JS_PTR64_DEF(a) a #else #define JS_PTR64_DEF(a) #endif #ifndef JS_PTR64 #define JS_NAN_BOXING #endif enum { /* all tags with a reference count are negative */ JS_TAG_FIRST = -11, /* first negative tag */ JS_TAG_BIG_DECIMAL = -11, JS_TAG_BIG_INT = -10, JS_TAG_BIG_FLOAT = -9, JS_TAG_SYMBOL = -8, JS_TAG_STRING = -7, JS_TAG_MODULE = -3, /* used internally */ JS_TAG_FUNCTION_BYTECODE = -2, /* used internally */ JS_TAG_OBJECT = -1, JS_TAG_INT = 0, JS_TAG_BOOL = 1, JS_TAG_NULL = 2, JS_TAG_UNDEFINED = 3, JS_TAG_UNINITIALIZED = 4, JS_TAG_CATCH_OFFSET = 5, JS_TAG_EXCEPTION = 6, JS_TAG_FLOAT64 = 7, /* any larger tag is FLOAT64 if JS_NAN_BOXING */ }; typedef struct JSRefCountHeader { int ref_count; } JSRefCountHeader; void quickjs_set_dumpout(FILE *f); #define JS_FLOAT64_NAN NAN #ifdef CONFIG_CHECK_JSVALUE /* JSValue consistency : it is not possible to run the code in this mode, but it is useful to detect simple reference counting errors. It would be interesting to modify a static C analyzer to handle specific annotations (clang has such annotations but only for objective C) */ typedef struct __JSValue *JSValue; typedef const struct __JSValue *JSValueConst; #define JS_VALUE_GET_TAG(v) (int)((uintptr_t)(v) & 0xf) /* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */ #define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v) #define JS_VALUE_GET_INT(v) (int)((intptr_t)(v) >> 4) #define JS_VALUE_GET_BOOL(v) JS_VALUE_GET_INT(v) #define JS_VALUE_GET_FLOAT64(v) (double)JS_VALUE_GET_INT(v) #define JS_VALUE_GET_PTR(v) (void *)((intptr_t)(v) & ~0xf) #define JS_MKVAL(tag, val) (JSValue)(intptr_t)(((val) << 4) | (tag)) #define JS_MKPTR(tag, p) (JSValue)((intptr_t)(p) | (tag)) #define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64) #define JS_NAN JS_MKVAL(JS_TAG_FLOAT64, 1) static inline JSValue __JS_NewFloat64(JSContext *ctx, double d) { return JS_MKVAL(JS_TAG_FLOAT64, (int)d); } static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v) { return 0; } #elif defined(JS_NAN_BOXING) typedef uint64_t JSValue; #define JSValueConst JSValue #define JS_VALUE_GET_TAG(v) (int)((v) >> 32) #define JS_VALUE_GET_INT(v) (int)(v) #define JS_VALUE_GET_BOOL(v) (int)(v) #define JS_VALUE_GET_PTR(v) (void *)(intptr_t)(v) #define JS_MKVAL(tag, val) (((uint64_t)(tag) << 32) | (uint32_t)(val)) #define JS_MKPTR(tag, ptr) (((uint64_t)(tag) << 32) | (uintptr_t)(ptr)) #define JS_FLOAT64_TAG_ADDEND (0x7ff80000 - JS_TAG_FIRST + 1) /* quiet NaN encoding */ static inline double JS_VALUE_GET_FLOAT64(JSValue v) { union { JSValue v; double d; } u; u.v = v; u.v += (uint64_t)JS_FLOAT64_TAG_ADDEND << 32; return u.d; } #define JS_NAN (0x7ff8000000000000 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32)) static inline JSValue __JS_NewFloat64(JSContext *ctx, double d) { union { double d; uint64_t u64; } u; JSValue v; u.d = d; /* normalize NaN */ if (js_unlikely((u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000)) v = JS_NAN; else v = u.u64 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32); return v; } #define JS_TAG_IS_FLOAT64(tag) ((unsigned)((tag) - JS_TAG_FIRST) >= (JS_TAG_FLOAT64 - JS_TAG_FIRST)) /* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */ static inline int JS_VALUE_GET_NORM_TAG(JSValue v) { uint32_t tag; tag = JS_VALUE_GET_TAG(v); if (JS_TAG_IS_FLOAT64(tag)) return JS_TAG_FLOAT64; else return tag; } static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v) { uint32_t tag; tag = JS_VALUE_GET_TAG(v); return tag == (JS_NAN >> 32); } #else /* !JS_NAN_BOXING */ typedef union JSValueUnion { int32_t int32; double float64; void *ptr; } JSValueUnion; typedef struct JSValue { JSValueUnion u; int64_t tag; } JSValue; #define JSValueConst JSValue #define JS_VALUE_GET_TAG(v) ((int32_t)(v).tag) /* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */ #define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v) #define JS_VALUE_GET_INT(v) ((v).u.int32) #define JS_VALUE_GET_BOOL(v) ((v).u.int32) #define JS_VALUE_GET_FLOAT64(v) ((v).u.float64) #define JS_VALUE_GET_PTR(v) ((v).u.ptr) #define JS_MKVAL(tag, val) (JSValue){ (JSValueUnion){ .int32 = val }, tag } #define JS_MKPTR(tag, p) (JSValue){ (JSValueUnion){ .ptr = p }, tag } #define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64) #define JS_NAN (JSValue){ .u.float64 = JS_FLOAT64_NAN, JS_TAG_FLOAT64 } static inline JSValue __JS_NewFloat64(JSContext *ctx, double d) { JSValue v; v.tag = JS_TAG_FLOAT64; v.u.float64 = d; return v; } static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v) { union { double d; uint64_t u64; } u; if (v.tag != JS_TAG_FLOAT64) return 0; u.d = v.u.float64; return (u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000; } #endif /* !JS_NAN_BOXING */ #define JS_VALUE_IS_BOTH_INT(v1, v2) ((JS_VALUE_GET_TAG(v1) | JS_VALUE_GET_TAG(v2)) == 0) #define JS_VALUE_IS_BOTH_FLOAT(v1, v2) (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v1)) && JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v2))) #define JS_VALUE_GET_OBJ(v) ((JSObject *)JS_VALUE_GET_PTR(v)) #define JS_VALUE_GET_STRING(v) ((JSString *)JS_VALUE_GET_PTR(v)) #define JS_VALUE_HAS_REF_COUNT(v) ((unsigned)JS_VALUE_GET_TAG(v) >= (unsigned)JS_TAG_FIRST) /* special values */ #define JS_NULL JS_MKVAL(JS_TAG_NULL, 0) #define JS_UNDEFINED JS_MKVAL(JS_TAG_UNDEFINED, 0) #define JS_FALSE JS_MKVAL(JS_TAG_BOOL, 0) #define JS_TRUE JS_MKVAL(JS_TAG_BOOL, 1) #define JS_EXCEPTION JS_MKVAL(JS_TAG_EXCEPTION, 0) #define JS_UNINITIALIZED JS_MKVAL(JS_TAG_UNINITIALIZED, 0) /* flags for object properties */ #define JS_PROP_CONFIGURABLE (1 << 0) #define JS_PROP_WRITABLE (1 << 1) #define JS_PROP_ENUMERABLE (1 << 2) #define JS_PROP_C_W_E (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE | JS_PROP_ENUMERABLE) #define JS_PROP_LENGTH (1 << 3) /* used internally in Arrays */ #define JS_PROP_TMASK (3 << 4) /* mask for NORMAL, GETSET, VARREF, AUTOINIT */ #define JS_PROP_NORMAL (0 << 4) #define JS_PROP_GETSET (1 << 4) #define JS_PROP_VARREF (2 << 4) /* used internally */ #define JS_PROP_AUTOINIT (3 << 4) /* used internally */ /* flags for JS_DefineProperty */ #define JS_PROP_HAS_SHIFT 8 #define JS_PROP_HAS_CONFIGURABLE (1 << 8) #define JS_PROP_HAS_WRITABLE (1 << 9) #define JS_PROP_HAS_ENUMERABLE (1 << 10) #define JS_PROP_HAS_GET (1 << 11) #define JS_PROP_HAS_SET (1 << 12) #define JS_PROP_HAS_VALUE (1 << 13) /* throw an exception if false would be returned (JS_DefineProperty/JS_SetProperty) */ #define JS_PROP_THROW (1 << 14) /* throw an exception if false would be returned in strict mode (JS_SetProperty) */ #define JS_PROP_THROW_STRICT (1 << 15) #define JS_PROP_NO_ADD (1 << 16) /* internal use */ #define JS_PROP_NO_EXOTIC (1 << 17) /* internal use */ #define JS_DEFAULT_STACK_SIZE (256 * 1024) /* JS_Eval() flags */ #define JS_EVAL_TYPE_GLOBAL (0 << 0) /* global code (default) */ #define JS_EVAL_TYPE_MODULE (1 << 0) /* module code */ #define JS_EVAL_TYPE_DIRECT (2 << 0) /* direct call (internal use) */ #define JS_EVAL_TYPE_INDIRECT (3 << 0) /* indirect call (internal use) */ #define JS_EVAL_TYPE_MASK (3 << 0) #define JS_EVAL_FLAG_STRICT (1 << 3) /* force 'strict' mode */ #define JS_EVAL_FLAG_STRIP (1 << 4) /* force 'strip' mode */ /* compile but do not run. The result is an object with a JS_TAG_FUNCTION_BYTECODE or JS_TAG_MODULE tag. It can be executed with JS_EvalFunction(). */ #define JS_EVAL_FLAG_COMPILE_ONLY (1 << 5) /* don't include the stack frames before this eval in the Error() backtraces */ #define JS_EVAL_FLAG_BACKTRACE_BARRIER (1 << 6) /* allow top-level await in normal script. JS_Eval() returns a promise. Only allowed with JS_EVAL_TYPE_GLOBAL */ #define JS_EVAL_FLAG_ASYNC (1 << 7) typedef JSValue JSCFunction(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv); typedef JSValue JSCFunctionMagic(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic); typedef JSValue JSCFunctionData(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic, JSValue *func_data); typedef struct JSMallocState { size_t malloc_count; size_t malloc_size; size_t malloc_limit; void *opaque; /* user opaque */ } JSMallocState; typedef struct JSMallocFunctions { void *(*js_malloc)(JSMallocState *s, size_t size); void (*js_free)(JSMallocState *s, void *ptr); void *(*js_realloc)(JSMallocState *s, void *ptr, size_t size); size_t (*js_malloc_usable_size)(const void *ptr); } JSMallocFunctions; typedef struct JSGCObjectHeader JSGCObjectHeader; JSRuntime *JS_NewRuntime(void); /* info lifetime must exceed that of rt */ void JS_SetRuntimeInfo(JSRuntime *rt, const char *info); void JS_SetMemoryLimit(JSRuntime *rt, size_t limit); void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold); /* use 0 to disable maximum stack size check */ void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size); /* should be called when changing thread to update the stack top value used to check stack overflow. */ void JS_UpdateStackTop(JSRuntime *rt); JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque); void JS_FreeRuntime(JSRuntime *rt); void *JS_GetRuntimeOpaque(JSRuntime *rt); void JS_SetRuntimeOpaque(JSRuntime *rt, void *opaque); typedef void JS_MarkFunc(JSRuntime *rt, JSGCObjectHeader *gp); void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); void JS_RunGC(JSRuntime *rt); JS_BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj); JSContext *JS_NewContext(JSRuntime *rt); void JS_FreeContext(JSContext *s); JSContext *JS_DupContext(JSContext *ctx); void *JS_GetContextOpaque(JSContext *ctx); void JS_SetContextOpaque(JSContext *ctx, void *opaque); JSRuntime *JS_GetRuntime(JSContext *ctx); void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj); JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id); /* the following functions are used to select the intrinsic object to save memory */ JSContext *JS_NewContextRaw(JSRuntime *rt); void JS_AddIntrinsicBaseObjects(JSContext *ctx); void JS_AddIntrinsicDate(JSContext *ctx); void JS_AddIntrinsicEval(JSContext *ctx); void JS_AddIntrinsicStringNormalize(JSContext *ctx); void JS_AddIntrinsicRegExpCompiler(JSContext *ctx); void JS_AddIntrinsicRegExp(JSContext *ctx); void JS_AddIntrinsicJSON(JSContext *ctx); void JS_AddIntrinsicProxy(JSContext *ctx); void JS_AddIntrinsicMapSet(JSContext *ctx); void JS_AddIntrinsicTypedArrays(JSContext *ctx); void JS_AddIntrinsicPromise(JSContext *ctx); void JS_AddIntrinsicBigInt(JSContext *ctx); void JS_AddIntrinsicBigFloat(JSContext *ctx); void JS_AddIntrinsicBigDecimal(JSContext *ctx); /* enable operator overloading */ void JS_AddIntrinsicOperators(JSContext *ctx); /* enable "use math" */ void JS_EnableBignumExt(JSContext *ctx, JS_BOOL enable); JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv); void *js_malloc_rt(JSRuntime *rt, size_t size); void js_free_rt(JSRuntime *rt, void *ptr); void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size); size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr); void *js_mallocz_rt(JSRuntime *rt, size_t size); void *js_malloc(JSContext *ctx, size_t size); void js_free(JSContext *ctx, void *ptr); void *js_realloc(JSContext *ctx, void *ptr, size_t size); size_t js_malloc_usable_size(JSContext *ctx, const void *ptr); void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack); void *js_mallocz(JSContext *ctx, size_t size); char *js_strdup(JSContext *ctx, const char *str); char *js_strndup(JSContext *ctx, const char *s, size_t n); typedef struct JSMemoryUsage { int64_t malloc_size, malloc_limit, memory_used_size; int64_t malloc_count; int64_t memory_used_count; int64_t atom_count, atom_size; int64_t str_count, str_size; int64_t obj_count, obj_size; int64_t prop_count, prop_size; int64_t shape_count, shape_size; int64_t js_func_count, js_func_size, js_func_code_size; int64_t js_func_pc2line_count, js_func_pc2line_size; int64_t c_func_count, array_count; int64_t fast_array_count, fast_array_elements; int64_t binary_object_count, binary_object_size; } JSMemoryUsage; void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s); void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt); /* atom support */ #define JS_ATOM_NULL 0 JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len); JSAtom JS_NewAtom(JSContext *ctx, const char *str); JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n); JSAtom JS_DupAtom(JSContext *ctx, JSAtom v); void JS_FreeAtom(JSContext *ctx, JSAtom v); void JS_FreeAtomRT(JSRuntime *rt, JSAtom v); JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom); JSValue JS_AtomToString(JSContext *ctx, JSAtom atom); const char *JS_AtomToCString(JSContext *ctx, JSAtom atom); JSAtom JS_ValueToAtom(JSContext *ctx, JSValueConst val); /* object class support */ typedef struct JSPropertyEnum { JS_BOOL is_enumerable; JSAtom atom; } JSPropertyEnum; typedef struct JSPropertyDescriptor { int flags; JSValue value; JSValue getter; JSValue setter; } JSPropertyDescriptor; typedef struct JSClassExoticMethods { /* Return -1 if exception (can only happen in case of Proxy object), FALSE if the property does not exists, TRUE if it exists. If 1 is returned, the property descriptor 'desc' is filled if != NULL. */ int (*get_own_property)(JSContext *ctx, JSPropertyDescriptor *desc, JSValueConst obj, JSAtom prop); /* '*ptab' should hold the '*plen' property keys. Return 0 if OK, -1 if exception. The 'is_enumerable' field is ignored. */ int (*get_own_property_names)(JSContext *ctx, JSPropertyEnum **ptab, uint32_t *plen, JSValueConst obj); /* return < 0 if exception, or TRUE/FALSE */ int (*delete_property)(JSContext *ctx, JSValueConst obj, JSAtom prop); /* return < 0 if exception or TRUE/FALSE */ int (*define_own_property)(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags); /* The following methods can be emulated with the previous ones, so they are usually not needed */ /* return < 0 if exception or TRUE/FALSE */ int (*has_property)(JSContext *ctx, JSValueConst obj, JSAtom atom); JSValue (*get_property)(JSContext *ctx, JSValueConst obj, JSAtom atom, JSValueConst receiver); /* return < 0 if exception or TRUE/FALSE */ int (*set_property)(JSContext *ctx, JSValueConst obj, JSAtom atom, JSValueConst value, JSValueConst receiver, int flags); } JSClassExoticMethods; typedef void JSClassFinalizer(JSRuntime *rt, JSValue val); typedef void JSClassGCMark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); #define JS_CALL_FLAG_CONSTRUCTOR (1 << 0) typedef JSValue JSClassCall(JSContext *ctx, JSValueConst func_obj, JSValueConst this_val, int argc, JSValueConst *argv, int flags); typedef struct JSClassDef { const char *class_name; JSClassFinalizer *finalizer; JSClassGCMark *gc_mark; /* if call != NULL, the object is a function. If (flags & JS_CALL_FLAG_CONSTRUCTOR) != 0, the function is called as a constructor. In this case, 'this_val' is new.target. A constructor call only happens if the object constructor bit is set (see JS_SetConstructorBit()). */ JSClassCall *call; /* XXX: suppress this indirection ? It is here only to save memory because only a few classes need these methods */ JSClassExoticMethods *exotic; } JSClassDef; #define JS_INVALID_CLASS_ID 0 JSClassID JS_NewClassID(JSClassID *pclass_id); /* Returns the class ID if `v` is an object, otherwise returns JS_INVALID_CLASS_ID. */ JSClassID JS_GetClassID(JSValue v); int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def); int JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id); /* value handling */ static js_force_inline JSValue JS_NewBool(JSContext *ctx, JS_BOOL val) { return JS_MKVAL(JS_TAG_BOOL, (val != 0)); } static js_force_inline JSValue JS_NewInt32(JSContext *ctx, int32_t val) { return JS_MKVAL(JS_TAG_INT, val); } static js_force_inline JSValue JS_NewCatchOffset(JSContext *ctx, int32_t val) { return JS_MKVAL(JS_TAG_CATCH_OFFSET, val); } static js_force_inline JSValue JS_NewInt64(JSContext *ctx, int64_t val) { JSValue v; if (val == (int32_t)val) { v = JS_NewInt32(ctx, val); } else { v = __JS_NewFloat64(ctx, val); } return v; } static js_force_inline JSValue JS_NewUint32(JSContext *ctx, uint32_t val) { JSValue v; if (val <= 0x7fffffff) { v = JS_NewInt32(ctx, val); } else { v = __JS_NewFloat64(ctx, val); } return v; } JSValue JS_NewBigInt64(JSContext *ctx, int64_t v); JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v); static js_force_inline JSValue JS_NewFloat64(JSContext *ctx, double d) { int32_t val; union { double d; uint64_t u; } u, t; if (d >= INT32_MIN && d <= INT32_MAX) { u.d = d; val = (int32_t)d; t.d = val; /* -0 cannot be represented as integer, so we compare the bit representation */ if (u.u == t.u) return JS_MKVAL(JS_TAG_INT, val); } return __JS_NewFloat64(ctx, d); } static inline JS_BOOL JS_IsNumber(JSValueConst v) { int tag = JS_VALUE_GET_TAG(v); return tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag); } static inline JS_BOOL JS_IsBigInt(JSContext *ctx, JSValueConst v) { int tag = JS_VALUE_GET_TAG(v); return tag == JS_TAG_BIG_INT; } static inline JS_BOOL JS_IsBigFloat(JSValueConst v) { int tag = JS_VALUE_GET_TAG(v); return tag == JS_TAG_BIG_FLOAT; } static inline JS_BOOL JS_IsBigDecimal(JSValueConst v) { int tag = JS_VALUE_GET_TAG(v); return tag == JS_TAG_BIG_DECIMAL; } static inline JS_BOOL JS_IsBool(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_BOOL; } static inline JS_BOOL JS_IsNull(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_NULL; } static inline JS_BOOL JS_IsUndefined(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_UNDEFINED; } static inline JS_BOOL JS_IsException(JSValueConst v) { return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_EXCEPTION); } static inline JS_BOOL JS_IsUninitialized(JSValueConst v) { return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_UNINITIALIZED); } static inline JS_BOOL JS_IsString(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_STRING; } static inline JS_BOOL JS_IsSymbol(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_SYMBOL; } static inline JS_BOOL JS_IsObject(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_OBJECT; } JSValue JS_Throw(JSContext *ctx, JSValue obj); JSValue JS_GetException(JSContext *ctx); JS_BOOL JS_IsError(JSContext *ctx, JSValueConst val); void JS_ResetUncatchableError(JSContext *ctx); JSValue JS_NewError(JSContext *ctx); JSValue __js_printf_like(2, 3) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...); JSValue __js_printf_like(2, 3) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...); JSValue __js_printf_like(2, 3) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...); JSValue __js_printf_like(2, 3) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...); JSValue __js_printf_like(2, 3) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...); JSValue JS_ThrowOutOfMemory(JSContext *ctx); void __JS_FreeValue(JSContext *ctx, JSValue v); static inline void JS_FreeValue(JSContext *ctx, JSValue v) { if (JS_VALUE_HAS_REF_COUNT(v)) { JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v); if (--p->ref_count <= 0) { __JS_FreeValue(ctx, v); } } } void __JS_FreeValueRT(JSRuntime *rt, JSValue v); static inline void JS_FreeValueRT(JSRuntime *rt, JSValue v) { if (JS_VALUE_HAS_REF_COUNT(v)) { JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v); if (--p->ref_count <= 0) { __JS_FreeValueRT(rt, v); } } } static inline JSValue JS_DupValue(JSContext *ctx, JSValueConst v) { if (JS_VALUE_HAS_REF_COUNT(v)) { JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v); p->ref_count++; } return (JSValue)v; } static inline JSValue JS_DupValueRT(JSRuntime *rt, JSValueConst v) { if (JS_VALUE_HAS_REF_COUNT(v)) { JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v); p->ref_count++; } return (JSValue)v; } int JS_ToBool(JSContext *ctx, JSValueConst val); /* return -1 for JS_EXCEPTION */ int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val); static inline int JS_ToUint32(JSContext *ctx, uint32_t *pres, JSValueConst val) { return JS_ToInt32(ctx, (int32_t*)pres, val); } int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val); int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val); int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val); /* return an exception if 'val' is a Number */ int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val); /* same as JS_ToInt64() but allow BigInt */ int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val); JSValue JS_NewStringLen(JSContext *ctx, const char *str1, size_t len1); JSValue JS_NewString(JSContext *ctx, const char *str); JSValue JS_NewAtomString(JSContext *ctx, const char *str); JSValue JS_ToString(JSContext *ctx, JSValueConst val); JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val); const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, JS_BOOL cesu8); static inline const char *JS_ToCStringLen(JSContext *ctx, size_t *plen, JSValueConst val1) { return JS_ToCStringLen2(ctx, plen, val1, 0); } static inline const char *JS_ToCString(JSContext *ctx, JSValueConst val1) { return JS_ToCStringLen2(ctx, NULL, val1, 0); } void JS_FreeCString(JSContext *ctx, const char *ptr); JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto, JSClassID class_id); JSValue JS_NewObjectClass(JSContext *ctx, int class_id); JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto); JSValue JS_NewObject(JSContext *ctx); JS_BOOL JS_IsFunction(JSContext* ctx, JSValueConst val); JS_BOOL JS_IsConstructor(JSContext* ctx, JSValueConst val); JS_BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj, JS_BOOL val); JSValue JS_NewArray(JSContext *ctx); int JS_IsArray(JSContext *ctx, JSValueConst val); JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj, JSAtom prop, JSValueConst receiver, JS_BOOL throw_ref_error); static js_force_inline JSValue JS_GetProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop) { return JS_GetPropertyInternal(ctx, this_obj, prop, this_obj, 0); } JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj, const char *prop); JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx); int JS_SetPropertyInternal(JSContext *ctx, JSValueConst obj, JSAtom prop, JSValue val, JSValueConst this_obj, int flags); static inline int JS_SetProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue val) { return JS_SetPropertyInternal(ctx, this_obj, prop, val, this_obj, JS_PROP_THROW); } int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx, JSValue val); int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj, int64_t idx, JSValue val); int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj, const char *prop, JSValue val); int JS_HasProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop); int JS_IsExtensible(JSContext *ctx, JSValueConst obj); int JS_PreventExtensions(JSContext *ctx, JSValueConst obj); int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags); int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val); JSValue JS_GetPrototype(JSContext *ctx, JSValueConst val); #define JS_GPN_STRING_MASK (1 << 0) #define JS_GPN_SYMBOL_MASK (1 << 1) #define JS_GPN_PRIVATE_MASK (1 << 2) /* only include the enumerable properties */ #define JS_GPN_ENUM_ONLY (1 << 4) /* set theJSPropertyEnum.is_enumerable field */ #define JS_GPN_SET_ENUM (1 << 5) int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab, uint32_t *plen, JSValueConst obj, int flags); int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc, JSValueConst obj, JSAtom prop); JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv); JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom, int argc, JSValueConst *argv); JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj, int argc, JSValueConst *argv); JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj, JSValueConst new_target, int argc, JSValueConst *argv); JS_BOOL JS_DetectModule(const char *input, size_t input_len); /* 'input' must be zero terminated i.e. input[input_len] = '\0'. */ JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len, const char *filename, int eval_flags); /* same as JS_Eval() but with an explicit 'this_obj' parameter */ JSValue JS_EvalThis(JSContext *ctx, JSValueConst this_obj, const char *input, size_t input_len, const char *filename, int eval_flags); JSValue JS_GetGlobalObject(JSContext *ctx); int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj); int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags); int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue val, int flags); int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx, JSValue val, int flags); int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj, const char *prop, JSValue val, int flags); int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue getter, JSValue setter, int flags); void JS_SetOpaque(JSValue obj, void *opaque); void *JS_GetOpaque(JSValueConst obj, JSClassID class_id); void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id); /* 'buf' must be zero terminated i.e. buf[buf_len] = '\0'. */ JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len, const char *filename); #define JS_PARSE_JSON_EXT (1 << 0) /* allow extended JSON */ JSValue JS_ParseJSON2(JSContext *ctx, const char *buf, size_t buf_len, const char *filename, int flags); JSValue JS_JSONStringify(JSContext *ctx, JSValueConst obj, JSValueConst replacer, JSValueConst space0); typedef void JSFreeArrayBufferDataFunc(JSRuntime *rt, void *opaque, void *ptr); JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len, JSFreeArrayBufferDataFunc *free_func, void *opaque, JS_BOOL is_shared); JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len); void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj); uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj); JSValue JS_GetTypedArrayBuffer(JSContext *ctx, JSValueConst obj, size_t *pbyte_offset, size_t *pbyte_length, size_t *pbytes_per_element); typedef struct { void *(*sab_alloc)(void *opaque, size_t size); void (*sab_free)(void *opaque, void *ptr); void (*sab_dup)(void *opaque, void *ptr); void *sab_opaque; } JSSharedArrayBufferFunctions; void JS_SetSharedArrayBufferFunctions(JSRuntime *rt, const JSSharedArrayBufferFunctions *sf); typedef enum JSPromiseStateEnum { JS_PROMISE_PENDING, JS_PROMISE_FULFILLED, JS_PROMISE_REJECTED, } JSPromiseStateEnum; JSValue JS_NewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs); JSPromiseStateEnum JS_PromiseState(JSContext *ctx, JSValue promise); JSValue JS_PromiseResult(JSContext *ctx, JSValue promise); /* is_handled = TRUE means that the rejection is handled */ typedef void JSHostPromiseRejectionTracker(JSContext *ctx, JSValueConst promise, JSValueConst reason, JS_BOOL is_handled, void *opaque); void JS_SetHostPromiseRejectionTracker(JSRuntime *rt, JSHostPromiseRejectionTracker *cb, void *opaque); /* return != 0 if the JS code needs to be interrupted */ typedef int JSInterruptHandler(JSRuntime *rt, void *opaque); void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque, int count); void JS_SetInterruptRate(int count); /* if can_block is TRUE, Atomics.wait() can be used */ void JS_SetCanBlock(JSRuntime *rt, JS_BOOL can_block); /* set the [IsHTMLDDA] internal slot */ void JS_SetIsHTMLDDA(JSContext *ctx, JSValueConst obj); typedef struct JSModuleDef JSModuleDef; /* return the module specifier (allocated with js_malloc()) or NULL if exception */ typedef char *JSModuleNormalizeFunc(JSContext *ctx, const char *module_base_name, const char *module_name, void *opaque); typedef JSModuleDef *JSModuleLoaderFunc(JSContext *ctx, const char *module_name, void *opaque); /* module_normalize = NULL is allowed and invokes the default module filename normalizer */ void JS_SetModuleLoaderFunc(JSRuntime *rt, JSModuleNormalizeFunc *module_normalize, JSModuleLoaderFunc *module_loader, void *opaque); /* return the import.meta object of a module */ JSValue JS_GetImportMeta(JSContext *ctx, JSModuleDef *m); JSAtom JS_GetModuleName(JSContext *ctx, JSModuleDef *m); JSValue JS_GetModuleNamespace(JSContext *ctx, JSModuleDef *m); /* JS Job support */ typedef JSValue JSJobFunc(JSContext *ctx, int argc, JSValueConst *argv); int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func, int argc, JSValueConst *argv); JS_BOOL JS_IsJobPending(JSRuntime *rt); int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx); /* Object Writer/Reader (currently only used to handle precompiled code) */ #define JS_WRITE_OBJ_BYTECODE (1 << 0) /* allow function/module */ #define JS_WRITE_OBJ_BSWAP (1 << 1) /* byte swapped output */ #define JS_WRITE_OBJ_SAB (1 << 2) /* allow SharedArrayBuffer */ #define JS_WRITE_OBJ_REFERENCE (1 << 3) /* allow object references to encode arbitrary object graph */ uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj, int flags); uint8_t *JS_WriteObject2(JSContext *ctx, size_t *psize, JSValueConst obj, int flags, uint8_t ***psab_tab, size_t *psab_tab_len); #define JS_READ_OBJ_BYTECODE (1 << 0) /* allow function/module */ #define JS_READ_OBJ_ROM_DATA (1 << 1) /* avoid duplicating 'buf' data */ #define JS_READ_OBJ_SAB (1 << 2) /* allow SharedArrayBuffer */ #define JS_READ_OBJ_REFERENCE (1 << 3) /* allow object references */ JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len, int flags); /* instantiate and evaluate a bytecode function. Only used when reading a script or module with JS_ReadObject() */ JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj); /* load the dependencies of the module 'obj'. Useful when JS_ReadObject() returns a module. */ int JS_ResolveModule(JSContext *ctx, JSValueConst obj); /* only exported for os.Worker() */ JSAtom JS_GetScriptOrModuleName(JSContext *ctx, int n_stack_levels); /* only exported for os.Worker() */ JSValue JS_LoadModule(JSContext *ctx, const char *basename, const char *filename); /* C function definition */ typedef enum JSCFunctionEnum { /* XXX: should rename for namespace isolation */ JS_CFUNC_generic, JS_CFUNC_generic_magic, JS_CFUNC_constructor, JS_CFUNC_constructor_magic, JS_CFUNC_constructor_or_func, JS_CFUNC_constructor_or_func_magic, JS_CFUNC_f_f, JS_CFUNC_f_f_f, JS_CFUNC_getter, JS_CFUNC_setter, JS_CFUNC_getter_magic, JS_CFUNC_setter_magic, JS_CFUNC_iterator_next, } JSCFunctionEnum; typedef union JSCFunctionType { JSCFunction *generic; JSValue (*generic_magic)(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic); JSCFunction *constructor; JSValue (*constructor_magic)(JSContext *ctx, JSValueConst new_target, int argc, JSValueConst *argv, int magic); JSCFunction *constructor_or_func; double (*f_f)(double); double (*f_f_f)(double, double); JSValue (*getter)(JSContext *ctx, JSValueConst this_val); JSValue (*setter)(JSContext *ctx, JSValueConst this_val, JSValueConst val); JSValue (*getter_magic)(JSContext *ctx, JSValueConst this_val, int magic); JSValue (*setter_magic)(JSContext *ctx, JSValueConst this_val, JSValueConst val, int magic); JSValue (*iterator_next)(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int *pdone, int magic); } JSCFunctionType; JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic); JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func, int length, int magic, int data_len, JSValueConst *data); static inline JSValue JS_NewCFunction(JSContext *ctx, JSCFunction *func, const char *name, int length) { return JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_generic, 0); } static inline JSValue JS_NewCFunctionMagic(JSContext *ctx, JSCFunctionMagic *func, const char *name, int length, JSCFunctionEnum cproto, int magic) { return JS_NewCFunction2(ctx, (JSCFunction *)func, name, length, cproto, magic); } void JS_SetConstructor(JSContext *ctx, JSValueConst func_obj, JSValueConst proto); /* C property definition */ typedef struct JSCFunctionListEntry { const char *name; uint8_t prop_flags; uint8_t def_type; int16_t magic; union { struct { uint8_t length; /* XXX: should move outside union */ uint8_t cproto; /* XXX: should move outside union */ JSCFunctionType cfunc; } func; struct { JSCFunctionType get; JSCFunctionType set; } getset; struct { const char *name; int base; } alias; struct { const struct JSCFunctionListEntry *tab; int len; } prop_list; const char *str; int32_t i32; int64_t i64; double f64; } u; } JSCFunctionListEntry; #define JS_DEF_CFUNC 0 #define JS_DEF_CGETSET 1 #define JS_DEF_CGETSET_MAGIC 2 #define JS_DEF_PROP_STRING 3 #define JS_DEF_PROP_INT32 4 #define JS_DEF_PROP_INT64 5 #define JS_DEF_PROP_DOUBLE 6 #define JS_DEF_PROP_UNDEFINED 7 #define JS_DEF_OBJECT 8 #define JS_DEF_ALIAS 9 /* Note: c++ does not like nested designators */ #define JS_CFUNC_DEF(name, length, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u = { .func = { length, JS_CFUNC_generic, { .generic = func1 } } } } #define JS_CFUNC_MAGIC_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u = { .func = { length, JS_CFUNC_generic_magic, { .generic_magic = func1 } } } } #define JS_CFUNC_SPECIAL_DEF(name, length, cproto, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u = { .func = { length, JS_CFUNC_ ## cproto, { .cproto = func1 } } } } #define JS_ITERATOR_NEXT_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u = { .func = { length, JS_CFUNC_iterator_next, { .iterator_next = func1 } } } } #define JS_CGETSET_DEF(name, fgetter, fsetter) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET, 0, .u = { .getset = { .get = { .getter = fgetter }, .set = { .setter = fsetter } } } } #define JS_CGETSET_MAGIC_DEF(name, fgetter, fsetter, magic) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET_MAGIC, magic, .u = { .getset = { .get = { .getter_magic = fgetter }, .set = { .setter_magic = fsetter } } } } #define JS_PROP_STRING_DEF(name, cstr, prop_flags) { name, prop_flags, JS_DEF_PROP_STRING, 0, .u = { .str = cstr } } #define JS_PROP_INT32_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT32, 0, .u = { .i32 = val } } #define JS_PROP_INT64_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT64, 0, .u = { .i64 = val } } #define JS_PROP_DOUBLE_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_DOUBLE, 0, .u = { .f64 = val } } #define JS_PROP_UNDEFINED_DEF(name, prop_flags) { name, prop_flags, JS_DEF_PROP_UNDEFINED, 0, .u = { .i32 = 0 } } #define JS_OBJECT_DEF(name, tab, len, prop_flags) { name, prop_flags, JS_DEF_OBJECT, 0, .u = { .prop_list = { tab, len } } } #define JS_ALIAS_DEF(name, from) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u = { .alias = { from, -1 } } } #define JS_ALIAS_BASE_DEF(name, from, base) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u = { .alias = { from, base } } } void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj, const JSCFunctionListEntry *tab, int len); /* C module definition */ typedef int JSModuleInitFunc(JSContext *ctx, JSModuleDef *m); JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str, JSModuleInitFunc *func); /* can only be called before the module is instantiated */ int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *name_str); int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m, const JSCFunctionListEntry *tab, int len); /* can only be called after the module is instantiated */ int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name, JSValue val); int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m, const JSCFunctionListEntry *tab, int len); #undef js_unlikely #undef js_force_inline #ifdef __cplusplus } /* extern "C" { */ #endif #endif /* QUICKJS_H */