873 lines
34 KiB
C
873 lines
34 KiB
C
/*
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* QuickJS Javascript Engine
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*
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* Copyright (c) 2017-2019 Fabrice Bellard
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* Copyright (c) 2017-2019 Charlie Gordon
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QUICKJS_H
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#define QUICKJS_H
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#include <stdio.h>
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#include <stdint.h>
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#if defined(__GNUC__) || defined(__clang__)
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#define js_likely(x) __builtin_expect(!!(x), 1)
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#define js_unlikely(x) __builtin_expect(!!(x), 0)
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#define js_force_inline inline __attribute__((always_inline))
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#define __js_printf_like(f, a) __attribute__((format(printf, f, a)))
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#else
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#define js_likely(x) (x)
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#define js_unlikely(x) (x)
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#define js_force_inline inline
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#define __js_printf_like(a, b)
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#endif
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#define JS_BOOL int
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typedef struct JSRuntime JSRuntime;
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typedef struct JSContext JSContext;
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typedef struct JSObject JSObject;
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typedef struct JSClass JSClass;
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typedef uint32_t JSClassID;
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typedef uint32_t JSAtom;
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#if defined(__x86_64__) || defined(__aarch64__)
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#define JS_PTR64
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#define JS_PTR64_DEF(a) a
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#else
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#define JS_PTR64_DEF(a)
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#endif
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#ifndef JS_PTR64
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#define JS_NAN_BOXING
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#endif
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enum {
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/* all tags with a reference count are negative */
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JS_TAG_FIRST = -10, /* first negative tag */
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JS_TAG_BIG_INT = -10,
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JS_TAG_BIG_FLOAT = -9,
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JS_TAG_SYMBOL = -8,
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JS_TAG_STRING = -7,
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JS_TAG_SHAPE = -6, /* used internally during GC */
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JS_TAG_ASYNC_FUNCTION = -5, /* used internally during GC */
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JS_TAG_VAR_REF = -4, /* used internally during GC */
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JS_TAG_MODULE = -3, /* used internally */
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JS_TAG_FUNCTION_BYTECODE = -2, /* used internally */
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JS_TAG_OBJECT = -1,
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JS_TAG_INT = 0,
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JS_TAG_BOOL = 1,
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JS_TAG_NULL = 2,
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JS_TAG_UNDEFINED = 3,
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JS_TAG_UNINITIALIZED = 4,
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JS_TAG_CATCH_OFFSET = 5,
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JS_TAG_EXCEPTION = 6,
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JS_TAG_FLOAT64 = 7,
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/* any larger tag is FLOAT64 if JS_NAN_BOXING */
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};
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typedef struct JSRefCountHeader {
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int ref_count;
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} JSRefCountHeader;
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#define JS_FLOAT64_NAN NAN
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#ifdef CONFIG_CHECK_JSVALUE
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/* JSValue consistency : it is not possible to run the code in this
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mode, but it is useful to detect simple reference counting
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errors. It would be interesting to modify a static C analyzer to
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handle specific annotations (clang has such annotations but only
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for objective C) */
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typedef struct __JSValue *JSValue;
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typedef const struct __JSValue *JSValueConst;
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#define JS_VALUE_GET_TAG(v) (int)((uintptr_t)(v) & 0xf)
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/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
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#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
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#define JS_VALUE_GET_INT(v) (int)((intptr_t)(v) >> 4)
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#define JS_VALUE_GET_BOOL(v) JS_VALUE_GET_INT(v)
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#define JS_VALUE_GET_FLOAT64(v) (double)JS_VALUE_GET_INT(v)
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#define JS_VALUE_GET_PTR(v) (void *)((intptr_t)(v) & ~0xf)
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#define JS_MKVAL(tag, val) (JSValue)(intptr_t)(((val) << 4) | (tag))
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#define JS_MKPTR(tag, p) (JSValue)((intptr_t)(p) | (tag))
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#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
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#define JS_NAN JS_MKVAL(JS_TAG_FLOAT64, 1)
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static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
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{
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return JS_MKVAL(JS_TAG_FLOAT64, (int)d);
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}
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#elif defined(JS_NAN_BOXING)
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typedef uint64_t JSValue;
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#define JSValueConst JSValue
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#define JS_VALUE_GET_TAG(v) (int)((v) >> 32)
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#define JS_VALUE_GET_INT(v) (int)(v)
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#define JS_VALUE_GET_BOOL(v) (int)(v)
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#define JS_VALUE_GET_PTR(v) (void *)(intptr_t)(v)
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#define JS_MKVAL(tag, val) (((uint64_t)(tag) << 32) | (uint32_t)(val))
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#define JS_MKPTR(tag, ptr) (((uint64_t)(tag) << 32) | (uintptr_t)(ptr))
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#define JS_FLOAT64_TAG_ADDEND (0x7ff80000 - JS_TAG_FIRST + 1) /* quiet NaN encoding */
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static inline double JS_VALUE_GET_FLOAT64(JSValue v)
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{
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union {
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JSValue v;
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double d;
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} u;
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u.v = v;
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u.v += (uint64_t)JS_FLOAT64_TAG_ADDEND << 32;
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return u.d;
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}
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#define JS_NAN (0x7ff8000000000000 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32))
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static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
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{
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union {
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double d;
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uint64_t u64;
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} u;
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JSValue v;
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u.d = d;
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/* normalize NaN */
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if (js_unlikely((u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000))
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v = JS_NAN;
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else
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v = u.u64 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32);
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return v;
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}
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#define JS_TAG_IS_FLOAT64(tag) ((unsigned)((tag) - JS_TAG_FIRST) >= (JS_TAG_FLOAT64 - JS_TAG_FIRST))
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/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
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static inline int JS_VALUE_GET_NORM_TAG(JSValue v)
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{
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uint32_t tag;
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tag = JS_VALUE_GET_TAG(v);
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if (JS_TAG_IS_FLOAT64(tag))
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return JS_TAG_FLOAT64;
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else
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return tag;
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}
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#else /* !JS_NAN_BOXING */
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typedef union JSValueUnion {
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int32_t int32;
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double float64;
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void *ptr;
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} JSValueUnion;
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typedef struct JSValue {
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JSValueUnion u;
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int64_t tag;
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} JSValue;
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#define JSValueConst JSValue
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#define JS_VALUE_GET_TAG(v) ((int32_t)(v).tag)
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/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
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#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
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#define JS_VALUE_GET_INT(v) ((v).u.int32)
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#define JS_VALUE_GET_BOOL(v) ((v).u.int32)
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#define JS_VALUE_GET_FLOAT64(v) ((v).u.float64)
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#define JS_VALUE_GET_PTR(v) ((v).u.ptr)
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#define JS_MKVAL(tag, val) (JSValue){ .u.int32 = val, tag }
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#define JS_MKPTR(tag, p) (JSValue){ .u.ptr = p, tag }
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#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
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#define JS_NAN (JSValue){ .u.float64 = JS_FLOAT64_NAN, JS_TAG_FLOAT64 }
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static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
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{
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JSValue v;
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v.tag = JS_TAG_FLOAT64;
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v.u.float64 = d;
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return v;
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}
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#endif /* !JS_NAN_BOXING */
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#define JS_VALUE_IS_BOTH_INT(v1, v2) ((JS_VALUE_GET_TAG(v1) | JS_VALUE_GET_TAG(v2)) == 0)
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#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)))
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#define JS_VALUE_GET_OBJ(v) ((JSObject *)JS_VALUE_GET_PTR(v))
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#define JS_VALUE_GET_STRING(v) ((JSString *)JS_VALUE_GET_PTR(v))
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#define JS_VALUE_HAS_REF_COUNT(v) ((unsigned)JS_VALUE_GET_TAG(v) >= (unsigned)JS_TAG_FIRST)
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/* special values */
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#define JS_NULL JS_MKVAL(JS_TAG_NULL, 0)
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#define JS_UNDEFINED JS_MKVAL(JS_TAG_UNDEFINED, 0)
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#define JS_FALSE JS_MKVAL(JS_TAG_BOOL, 0)
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#define JS_TRUE JS_MKVAL(JS_TAG_BOOL, 1)
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#define JS_EXCEPTION JS_MKVAL(JS_TAG_EXCEPTION, 0)
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#define JS_UNINITIALIZED JS_MKVAL(JS_TAG_UNINITIALIZED, 0)
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/* flags for object properties */
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#define JS_PROP_CONFIGURABLE (1 << 0)
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#define JS_PROP_WRITABLE (1 << 1)
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#define JS_PROP_ENUMERABLE (1 << 2)
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#define JS_PROP_C_W_E (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)
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#define JS_PROP_LENGTH (1 << 3) /* used internally in Arrays */
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#define JS_PROP_TMASK (3 << 4) /* mask for NORMAL, GETSET, VARREF, AUTOINIT */
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#define JS_PROP_NORMAL (0 << 4)
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#define JS_PROP_GETSET (1 << 4)
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#define JS_PROP_VARREF (2 << 4) /* used internally */
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#define JS_PROP_AUTOINIT (3 << 4) /* used internally */
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/* flags for JS_DefineProperty */
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#define JS_PROP_HAS_SHIFT 8
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#define JS_PROP_HAS_CONFIGURABLE (1 << 8)
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#define JS_PROP_HAS_WRITABLE (1 << 9)
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#define JS_PROP_HAS_ENUMERABLE (1 << 10)
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#define JS_PROP_HAS_GET (1 << 11)
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#define JS_PROP_HAS_SET (1 << 12)
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#define JS_PROP_HAS_VALUE (1 << 13)
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/* throw an exception if false would be returned
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(JS_DefineProperty/JS_SetProperty) */
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#define JS_PROP_THROW (1 << 14)
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/* throw an exception if false would be returned in strict mode
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(JS_SetProperty) */
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#define JS_PROP_THROW_STRICT (1 << 15)
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#define JS_PROP_NO_ADD (1 << 16) /* internal use */
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#define JS_PROP_NO_EXOTIC (1 << 17) /* internal use */
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#define JS_DEFAULT_STACK_SIZE (256 * 1024)
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/* JS_Eval() flags */
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#define JS_EVAL_TYPE_GLOBAL (0 << 0) /* global code (default) */
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#define JS_EVAL_TYPE_MODULE (1 << 0) /* module code */
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#define JS_EVAL_TYPE_DIRECT (2 << 0) /* direct call (internal use) */
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#define JS_EVAL_TYPE_INDIRECT (3 << 0) /* indirect call (internal use) */
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#define JS_EVAL_TYPE_MASK (3 << 0)
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#define JS_EVAL_FLAG_SHEBANG (1 << 2) /* skip first line beginning with '#!' */
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#define JS_EVAL_FLAG_STRICT (1 << 3) /* force 'strict' mode */
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#define JS_EVAL_FLAG_STRIP (1 << 4) /* force 'strip' mode */
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#define JS_EVAL_FLAG_COMPILE_ONLY (1 << 5) /* internal use */
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typedef JSValue JSCFunction(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
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typedef JSValue JSCFunctionMagic(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic);
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typedef JSValue JSCFunctionData(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic, JSValue *func_data);
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typedef struct JSMallocState {
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size_t malloc_count;
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size_t malloc_size;
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size_t malloc_limit;
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void *opaque; /* user opaque */
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} JSMallocState;
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typedef struct JSMallocFunctions {
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void *(*js_malloc)(JSMallocState *s, size_t size);
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void (*js_free)(JSMallocState *s, void *ptr);
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void *(*js_realloc)(JSMallocState *s, void *ptr, size_t size);
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size_t (*js_malloc_usable_size)(const void *ptr);
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} JSMallocFunctions;
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JSRuntime *JS_NewRuntime(void);
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/* info lifetime must exceed that of rt */
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void JS_SetRuntimeInfo(JSRuntime *rt, const char *info);
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void JS_SetMemoryLimit(JSRuntime *rt, size_t limit);
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void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold);
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JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque);
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void JS_FreeRuntime(JSRuntime *rt);
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typedef void JS_MarkFunc(JSRuntime *rt, JSValueConst val);
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void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
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void JS_RunGC(JSRuntime *rt);
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JS_BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj);
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JS_BOOL JS_IsInGCSweep(JSRuntime *rt);
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JSContext *JS_NewContext(JSRuntime *rt);
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void JS_FreeContext(JSContext *s);
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void *JS_GetContextOpaque(JSContext *ctx);
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void JS_SetContextOpaque(JSContext *ctx, void *opaque);
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JSRuntime *JS_GetRuntime(JSContext *ctx);
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void JS_SetMaxStackSize(JSContext *ctx, size_t stack_size);
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void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj);
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JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id);
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/* the following functions are used to select the intrinsic object to
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save memory */
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JSContext *JS_NewContextRaw(JSRuntime *rt);
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void JS_AddIntrinsicBaseObjects(JSContext *ctx);
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void JS_AddIntrinsicDate(JSContext *ctx);
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void JS_AddIntrinsicEval(JSContext *ctx);
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void JS_AddIntrinsicStringNormalize(JSContext *ctx);
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void JS_AddIntrinsicRegExpCompiler(JSContext *ctx);
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void JS_AddIntrinsicRegExp(JSContext *ctx);
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void JS_AddIntrinsicJSON(JSContext *ctx);
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void JS_AddIntrinsicProxy(JSContext *ctx);
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void JS_AddIntrinsicMapSet(JSContext *ctx);
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void JS_AddIntrinsicTypedArrays(JSContext *ctx);
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void JS_AddIntrinsicPromise(JSContext *ctx);
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JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val,
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int argc, JSValueConst *argv);
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void *js_malloc_rt(JSRuntime *rt, size_t size);
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void js_free_rt(JSRuntime *rt, void *ptr);
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void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size);
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size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr);
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void *js_mallocz_rt(JSRuntime *rt, size_t size);
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void *js_malloc(JSContext *ctx, size_t size);
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void js_free(JSContext *ctx, void *ptr);
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void *js_realloc(JSContext *ctx, void *ptr, size_t size);
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size_t js_malloc_usable_size(JSContext *ctx, const void *ptr);
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void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack);
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void *js_mallocz(JSContext *ctx, size_t size);
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char *js_strdup(JSContext *ctx, const char *str);
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char *js_strndup(JSContext *ctx, const char *s, size_t n);
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typedef struct JSMemoryUsage {
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int64_t malloc_size, malloc_limit, memory_used_size;
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int64_t malloc_count;
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int64_t memory_used_count;
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int64_t atom_count, atom_size;
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int64_t str_count, str_size;
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int64_t obj_count, obj_size;
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int64_t prop_count, prop_size;
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int64_t shape_count, shape_size;
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int64_t js_func_count, js_func_size, js_func_code_size;
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int64_t js_func_pc2line_count, js_func_pc2line_size;
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int64_t c_func_count, array_count;
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int64_t fast_array_count, fast_array_elements;
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int64_t binary_object_count, binary_object_size;
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} JSMemoryUsage;
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void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s);
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void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt);
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/* atom support */
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JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, int len);
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JSAtom JS_NewAtom(JSContext *ctx, const char *str);
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JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n);
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JSAtom JS_DupAtom(JSContext *ctx, JSAtom v);
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void JS_FreeAtom(JSContext *ctx, JSAtom v);
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void JS_FreeAtomRT(JSRuntime *rt, JSAtom v);
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JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom);
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JSValue JS_AtomToString(JSContext *ctx, JSAtom atom);
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const char *JS_AtomToCString(JSContext *ctx, JSAtom atom);
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/* object class support */
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typedef struct JSPropertyEnum {
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JS_BOOL is_enumerable;
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JSAtom atom;
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} JSPropertyEnum;
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typedef struct JSPropertyDescriptor {
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int flags;
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JSValue value;
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JSValue getter;
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JSValue setter;
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} JSPropertyDescriptor;
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typedef struct JSClassExoticMethods {
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/* Return -1 if exception (can only happen in case of Proxy object),
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FALSE if the property does not exists, TRUE if it exists. If 1 is
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returned, the property descriptor 'desc' is filled if != NULL. */
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int (*get_own_property)(JSContext *ctx, JSPropertyDescriptor *desc,
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JSValueConst obj, JSAtom prop);
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/* '*ptab' should hold the '*plen' property keys. Return 0 if OK,
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-1 if exception. The 'is_enumerable' field is ignored.
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*/
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int (*get_own_property_names)(JSContext *ctx, JSPropertyEnum **ptab,
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uint32_t *plen,
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JSValueConst obj);
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/* return < 0 if exception, or TRUE/FALSE */
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int (*delete_property)(JSContext *ctx, JSValueConst obj, JSAtom prop);
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/* return < 0 if exception or TRUE/FALSE */
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int (*define_own_property)(JSContext *ctx, JSValueConst this_obj,
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JSAtom prop, JSValueConst val,
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JSValueConst getter, JSValueConst setter,
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int flags);
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/* The following methods can be emulated with the previous ones,
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so they are usually not needed */
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/* return < 0 if exception or TRUE/FALSE */
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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);
|
|
typedef JSValue JSClassCall(JSContext *ctx, JSValueConst func_obj,
|
|
JSValueConst this_val, int argc, JSValueConst *argv);
|
|
|
|
typedef struct JSClassDef {
|
|
const char *class_name;
|
|
JSClassFinalizer *finalizer;
|
|
JSClassGCMark *gc_mark;
|
|
JSClassCall *call;
|
|
/* XXX: suppress this indirection ? It is here only to save memory
|
|
because only a few classes need these methods */
|
|
JSClassExoticMethods *exotic;
|
|
} JSClassDef;
|
|
|
|
JSClassID JS_NewClassID(JSClassID *pclass_id);
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
JSValue JS_NewInt64(JSContext *ctx, int64_t v);
|
|
|
|
static js_force_inline JSValue JS_NewFloat64(JSContext *ctx, double d)
|
|
{
|
|
JSValue v;
|
|
int32_t val;
|
|
union {
|
|
double d;
|
|
uint64_t u;
|
|
} u, t;
|
|
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) {
|
|
v = JS_MKVAL(JS_TAG_INT, val);
|
|
} else {
|
|
v = __JS_NewFloat64(ctx, d);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
JS_BOOL JS_IsNumber(JSValueConst v);
|
|
|
|
static inline JS_BOOL JS_IsInteger(JSValueConst v)
|
|
{
|
|
int tag = JS_VALUE_GET_TAG(v);
|
|
return tag == JS_TAG_INT || 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_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_EnableIsErrorProperty(JSContext *ctx, JS_BOOL enable);
|
|
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;
|
|
}
|
|
|
|
int JS_ToBool(JSContext *ctx, JSValueConst val); /* return -1 for JS_EXCEPTION */
|
|
int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val);
|
|
static int inline 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);
|
|
|
|
JSValue JS_NewStringLen(JSContext *ctx, const char *str1, int 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_ToCStringLen(JSContext *ctx, int *plen, JSValueConst val1, JS_BOOL cesu8);
|
|
static inline const char *JS_ToCString(JSContext *ctx, JSValueConst val1)
|
|
{
|
|
return JS_ToCStringLen(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);
|
|
|
|
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 this_obj,
|
|
JSAtom prop, JSValue val,
|
|
int flags);
|
|
static inline int JS_SetProperty(JSContext *ctx, JSValueConst this_obj,
|
|
JSAtom prop, JSValue val)
|
|
{
|
|
return JS_SetPropertyInternal(ctx, this_obj, prop, val, 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);
|
|
JSValueConst JS_GetPrototype(JSContext *ctx, JSValueConst val);
|
|
|
|
JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,
|
|
const char *filename);
|
|
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);
|
|
JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len,
|
|
const char *filename, int eval_flags);
|
|
#define JS_EVAL_BINARY_LOAD_ONLY (1 << 0) /* only load the module */
|
|
JSValue JS_EvalBinary(JSContext *ctx,
|
|
const uint8_t *buf, size_t buf_len, int 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);
|
|
|
|
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);
|
|
|
|
/* 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);
|
|
/* if can_block is TRUE, Atomics.wait() can be used */
|
|
void JS_SetCanBlock(JSRuntime *rt, JS_BOOL can_block);
|
|
|
|
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);
|
|
|
|
/* 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 */
|
|
uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj,
|
|
int flags);
|
|
#define JS_READ_OBJ_BYTECODE (1 << 0) /* allow function/module */
|
|
#define JS_READ_OBJ_ROM_DATA (1 << 1) /* avoid duplicating 'buf' data */
|
|
JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len,
|
|
int flags);
|
|
JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj, JSValueConst this_obj);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* 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
|
|
|
|
#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 } } }
|
|
#if defined(_MSC_VER)
|
|
#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 } } }
|
|
#else
|
|
#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 } } }
|
|
#endif
|
|
#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, .u.getset.set.setter = fsetter }
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#define JS_CGETSET_MAGIC_DEF(name, fgetter, fsetter, magic) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET_MAGIC, magic, .u.getset.get.getter_magic = fgetter, .u.getset.set.setter_magic = fsetter }
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#define JS_PROP_STRING_DEF(name, cstr, prop_flags) { name, prop_flags, JS_DEF_PROP_STRING, 0, .u.str = cstr }
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#define JS_PROP_INT32_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT32, 0, .u.i32 = val }
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#define JS_PROP_INT64_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT64, 0, .u.i64 = val }
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#define JS_PROP_DOUBLE_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_DOUBLE, 0, .u.f64 = val }
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#define JS_PROP_UNDEFINED_DEF(name, prop_flags) { name, prop_flags, JS_DEF_PROP_UNDEFINED, 0, .u.i32 = 0 }
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#define JS_OBJECT_DEF(name, tab, len, prop_flags) { name, prop_flags, JS_DEF_OBJECT, 0, .u.prop_list = { tab, len } }
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#define JS_ALIAS_DEF(name, from) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u.alias = { from, -1 } }
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#define JS_ALIAS_BASE_DEF(name, from, base) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u.alias = { from, base } }
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void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj,
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const JSCFunctionListEntry *tab,
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int len);
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/* C module definition */
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typedef int JSModuleInitFunc(JSContext *ctx, JSModuleDef *m);
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JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str,
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JSModuleInitFunc *func);
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/* can only be called before the module is instantiated */
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int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *name_str);
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int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m,
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const JSCFunctionListEntry *tab, int len);
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/* can only be called after the module is instantiated */
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int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name,
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JSValue val);
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int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m,
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const JSCFunctionListEntry *tab, int len);
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#undef js_unlikely
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#undef js_force_inline
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#endif /* QUICKJS_H */
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