diff options
Diffstat (limited to 'tests/headers/jsval_layout_opaque.hpp')
| -rw-r--r-- | tests/headers/jsval_layout_opaque.hpp | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/tests/headers/jsval_layout_opaque.hpp b/tests/headers/jsval_layout_opaque.hpp deleted file mode 100644 index ef13b85b..00000000 --- a/tests/headers/jsval_layout_opaque.hpp +++ /dev/null @@ -1,425 +0,0 @@ -// bindgen-flags: --with-derive-hash --with-derive-partialeq --with-derive-eq --rustified-enum ".*" -// bindgen-flags: -- -std=c++11 - -/** - * These typedefs are hacky, but keep our tests consistent across 64-bit - * platforms, otherwise the id's change and our CI is unhappy. - */ -typedef unsigned char uint8_t; -typedef int int32_t; -typedef unsigned int uint32_t; -typedef unsigned long long uint64_t; -typedef unsigned long long size_t; -typedef unsigned long long uintptr_t; - - -#define JS_PUNBOX64 -#define IS_LITTLE_ENDIAN - -/* - * Try to get jsvals 64-bit aligned. We could almost assert that all values are - * aligned, but MSVC and GCC occasionally break alignment. - */ -#if defined(__GNUC__) || defined(__xlc__) || defined(__xlC__) -# define JSVAL_ALIGNMENT __attribute__((aligned (8))) -#elif defined(_MSC_VER) - /* - * Structs can be aligned with MSVC, but not if they are used as parameters, - * so we just don't try to align. - */ -# define JSVAL_ALIGNMENT -#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC) -# define JSVAL_ALIGNMENT -#elif defined(__HP_cc) || defined(__HP_aCC) -# define JSVAL_ALIGNMENT -#endif - -#if defined(JS_PUNBOX64) -# define JSVAL_TAG_SHIFT 47 -#endif - -/* - * We try to use enums so that printing a jsval_layout in the debugger shows - * nice symbolic type tags, however we can only do this when we can force the - * underlying type of the enum to be the desired size. - */ -#if !defined(__SUNPRO_CC) && !defined(__xlC__) - -#if defined(_MSC_VER) -# define JS_ENUM_HEADER(id, type) enum id : type -# define JS_ENUM_FOOTER(id) -#else -# define JS_ENUM_HEADER(id, type) enum id -# define JS_ENUM_FOOTER(id) __attribute__((packed)) -#endif - -/* Remember to propagate changes to the C defines below. */ -JS_ENUM_HEADER(JSValueType, uint8_t) -{ - JSVAL_TYPE_DOUBLE = 0x00, - JSVAL_TYPE_INT32 = 0x01, - JSVAL_TYPE_UNDEFINED = 0x02, - JSVAL_TYPE_BOOLEAN = 0x03, - JSVAL_TYPE_MAGIC = 0x04, - JSVAL_TYPE_STRING = 0x05, - JSVAL_TYPE_SYMBOL = 0x06, - JSVAL_TYPE_NULL = 0x07, - JSVAL_TYPE_OBJECT = 0x08, - - /* These never appear in a jsval; they are only provided as an out-of-band value. */ - JSVAL_TYPE_UNKNOWN = 0x20, - JSVAL_TYPE_MISSING = 0x21 -} JS_ENUM_FOOTER(JSValueType); - -static_assert(sizeof(JSValueType) == 1, - "compiler typed enum support is apparently buggy"); - -#if defined(JS_NUNBOX32) - -/* Remember to propagate changes to the C defines below. */ -JS_ENUM_HEADER(JSValueTag, uint32_t) -{ - JSVAL_TAG_CLEAR = 0xFFFFFF80, - JSVAL_TAG_INT32 = JSVAL_TAG_CLEAR | JSVAL_TYPE_INT32, - JSVAL_TAG_UNDEFINED = JSVAL_TAG_CLEAR | JSVAL_TYPE_UNDEFINED, - JSVAL_TAG_STRING = JSVAL_TAG_CLEAR | JSVAL_TYPE_STRING, - JSVAL_TAG_SYMBOL = JSVAL_TAG_CLEAR | JSVAL_TYPE_SYMBOL, - JSVAL_TAG_BOOLEAN = JSVAL_TAG_CLEAR | JSVAL_TYPE_BOOLEAN, - JSVAL_TAG_MAGIC = JSVAL_TAG_CLEAR | JSVAL_TYPE_MAGIC, - JSVAL_TAG_NULL = JSVAL_TAG_CLEAR | JSVAL_TYPE_NULL, - JSVAL_TAG_OBJECT = JSVAL_TAG_CLEAR | JSVAL_TYPE_OBJECT -} JS_ENUM_FOOTER(JSValueTag); - -static_assert(sizeof(JSValueTag) == sizeof(uint32_t), - "compiler typed enum support is apparently buggy"); - -#elif defined(JS_PUNBOX64) - -/* Remember to propagate changes to the C defines below. */ -JS_ENUM_HEADER(JSValueTag, uint32_t) -{ - JSVAL_TAG_MAX_DOUBLE = 0x1FFF0, - JSVAL_TAG_INT32 = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_INT32, - JSVAL_TAG_UNDEFINED = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_UNDEFINED, - JSVAL_TAG_STRING = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_STRING, - JSVAL_TAG_SYMBOL = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_SYMBOL, - JSVAL_TAG_BOOLEAN = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_BOOLEAN, - JSVAL_TAG_MAGIC = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_MAGIC, - JSVAL_TAG_NULL = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_NULL, - JSVAL_TAG_OBJECT = JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_OBJECT -} JS_ENUM_FOOTER(JSValueTag); - -static_assert(sizeof(JSValueTag) == sizeof(uint32_t), - "compiler typed enum support is apparently buggy"); - -JS_ENUM_HEADER(JSValueShiftedTag, uint64_t) -{ - JSVAL_SHIFTED_TAG_MAX_DOUBLE = ((((uint64_t)JSVAL_TAG_MAX_DOUBLE) << JSVAL_TAG_SHIFT) | 0xFFFFFFFF), - JSVAL_SHIFTED_TAG_INT32 = (((uint64_t)JSVAL_TAG_INT32) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_UNDEFINED = (((uint64_t)JSVAL_TAG_UNDEFINED) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_STRING = (((uint64_t)JSVAL_TAG_STRING) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_SYMBOL = (((uint64_t)JSVAL_TAG_SYMBOL) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_BOOLEAN = (((uint64_t)JSVAL_TAG_BOOLEAN) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_MAGIC = (((uint64_t)JSVAL_TAG_MAGIC) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_NULL = (((uint64_t)JSVAL_TAG_NULL) << JSVAL_TAG_SHIFT), - JSVAL_SHIFTED_TAG_OBJECT = (((uint64_t)JSVAL_TAG_OBJECT) << JSVAL_TAG_SHIFT) -} JS_ENUM_FOOTER(JSValueShiftedTag); - -static_assert(sizeof(JSValueShiftedTag) == sizeof(uint64_t), - "compiler typed enum support is apparently buggy"); - -#endif - -/* - * All our supported compilers implement C++11 |enum Foo : T| syntax, so don't - * expose these macros. (This macro exists *only* because gcc bug 51242 - * <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51242> makes bit-fields of - * typed enums trigger a warning that can't be turned off. Don't expose it - * beyond this file!) - */ -#undef JS_ENUM_HEADER -#undef JS_ENUM_FOOTER - -#else /* !defined(__SUNPRO_CC) && !defined(__xlC__) */ - -typedef uint8_t JSValueType; -#define JSVAL_TYPE_DOUBLE ((uint8_t)0x00) -#define JSVAL_TYPE_INT32 ((uint8_t)0x01) -#define JSVAL_TYPE_UNDEFINED ((uint8_t)0x02) -#define JSVAL_TYPE_BOOLEAN ((uint8_t)0x03) -#define JSVAL_TYPE_MAGIC ((uint8_t)0x04) -#define JSVAL_TYPE_STRING ((uint8_t)0x05) -#define JSVAL_TYPE_SYMBOL ((uint8_t)0x06) -#define JSVAL_TYPE_NULL ((uint8_t)0x07) -#define JSVAL_TYPE_OBJECT ((uint8_t)0x08) -#define JSVAL_TYPE_UNKNOWN ((uint8_t)0x20) - -#if defined(JS_NUNBOX32) - -typedef uint32_t JSValueTag; -#define JSVAL_TAG_CLEAR ((uint32_t)(0xFFFFFF80)) -#define JSVAL_TAG_INT32 ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_INT32)) -#define JSVAL_TAG_UNDEFINED ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_UNDEFINED)) -#define JSVAL_TAG_STRING ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_STRING)) -#define JSVAL_TAG_SYMBOL ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_SYMBOL)) -#define JSVAL_TAG_BOOLEAN ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_BOOLEAN)) -#define JSVAL_TAG_MAGIC ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_MAGIC)) -#define JSVAL_TAG_NULL ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_NULL)) -#define JSVAL_TAG_OBJECT ((uint32_t)(JSVAL_TAG_CLEAR | JSVAL_TYPE_OBJECT)) - -#elif defined(JS_PUNBOX64) - -typedef uint32_t JSValueTag; -#define JSVAL_TAG_MAX_DOUBLE ((uint32_t)(0x1FFF0)) -#define JSVAL_TAG_INT32 (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_INT32) -#define JSVAL_TAG_UNDEFINED (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_UNDEFINED) -#define JSVAL_TAG_STRING (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_STRING) -#define JSVAL_TAG_SYMBOL (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_SYMBOL) -#define JSVAL_TAG_BOOLEAN (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_BOOLEAN) -#define JSVAL_TAG_MAGIC (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_MAGIC) -#define JSVAL_TAG_NULL (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_NULL) -#define JSVAL_TAG_OBJECT (uint32_t)(JSVAL_TAG_MAX_DOUBLE | JSVAL_TYPE_OBJECT) - -typedef uint64_t JSValueShiftedTag; -#define JSVAL_SHIFTED_TAG_MAX_DOUBLE ((((uint64_t)JSVAL_TAG_MAX_DOUBLE) << JSVAL_TAG_SHIFT) | 0xFFFFFFFF) -#define JSVAL_SHIFTED_TAG_INT32 (((uint64_t)JSVAL_TAG_INT32) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_UNDEFINED (((uint64_t)JSVAL_TAG_UNDEFINED) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_STRING (((uint64_t)JSVAL_TAG_STRING) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_SYMBOL (((uint64_t)JSVAL_TAG_SYMBOL) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_BOOLEAN (((uint64_t)JSVAL_TAG_BOOLEAN) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_MAGIC (((uint64_t)JSVAL_TAG_MAGIC) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_NULL (((uint64_t)JSVAL_TAG_NULL) << JSVAL_TAG_SHIFT) -#define JSVAL_SHIFTED_TAG_OBJECT (((uint64_t)JSVAL_TAG_OBJECT) << JSVAL_TAG_SHIFT) - -#endif /* JS_PUNBOX64 */ -#endif /* !defined(__SUNPRO_CC) && !defined(__xlC__) */ - -#if defined(JS_NUNBOX32) - -#define JSVAL_TYPE_TO_TAG(type) ((JSValueTag)(JSVAL_TAG_CLEAR | (type))) - -#define JSVAL_LOWER_INCL_TAG_OF_OBJ_OR_NULL_SET JSVAL_TAG_NULL -#define JSVAL_UPPER_EXCL_TAG_OF_PRIMITIVE_SET JSVAL_TAG_OBJECT -#define JSVAL_UPPER_INCL_TAG_OF_NUMBER_SET JSVAL_TAG_INT32 -#define JSVAL_LOWER_INCL_TAG_OF_GCTHING_SET JSVAL_TAG_STRING - -#elif defined(JS_PUNBOX64) - -#define JSVAL_PAYLOAD_MASK 0x00007FFFFFFFFFFFLL -#define JSVAL_TAG_MASK 0xFFFF800000000000LL -#define JSVAL_TYPE_TO_TAG(type) ((JSValueTag)(JSVAL_TAG_MAX_DOUBLE | (type))) -#define JSVAL_TYPE_TO_SHIFTED_TAG(type) (((uint64_t)JSVAL_TYPE_TO_TAG(type)) << JSVAL_TAG_SHIFT) - -#define JSVAL_LOWER_INCL_TAG_OF_OBJ_OR_NULL_SET JSVAL_TAG_NULL -#define JSVAL_UPPER_EXCL_TAG_OF_PRIMITIVE_SET JSVAL_TAG_OBJECT -#define JSVAL_UPPER_INCL_TAG_OF_NUMBER_SET JSVAL_TAG_INT32 -#define JSVAL_LOWER_INCL_TAG_OF_GCTHING_SET JSVAL_TAG_STRING - -#define JSVAL_LOWER_INCL_SHIFTED_TAG_OF_OBJ_OR_NULL_SET JSVAL_SHIFTED_TAG_NULL -#define JSVAL_UPPER_EXCL_SHIFTED_TAG_OF_PRIMITIVE_SET JSVAL_SHIFTED_TAG_OBJECT -#define JSVAL_UPPER_EXCL_SHIFTED_TAG_OF_NUMBER_SET JSVAL_SHIFTED_TAG_UNDEFINED -#define JSVAL_LOWER_INCL_SHIFTED_TAG_OF_GCTHING_SET JSVAL_SHIFTED_TAG_STRING - -#endif /* JS_PUNBOX64 */ - -typedef enum JSWhyMagic -{ - /** a hole in a native object's elements */ - JS_ELEMENTS_HOLE, - - /** there is not a pending iterator value */ - JS_NO_ITER_VALUE, - - /** exception value thrown when closing a generator */ - JS_GENERATOR_CLOSING, - - /** compiler sentinel value */ - JS_NO_CONSTANT, - - /** used in debug builds to catch tracing errors */ - JS_THIS_POISON, - - /** used in debug builds to catch tracing errors */ - JS_ARG_POISON, - - /** an empty subnode in the AST serializer */ - JS_SERIALIZE_NO_NODE, - - /** lazy arguments value on the stack */ - JS_LAZY_ARGUMENTS, - - /** optimized-away 'arguments' value */ - JS_OPTIMIZED_ARGUMENTS, - - /** magic value passed to natives to indicate construction */ - JS_IS_CONSTRUCTING, - - /** arguments.callee has been overwritten */ - JS_OVERWRITTEN_CALLEE, - - /** value of static block object slot */ - JS_BLOCK_NEEDS_CLONE, - - /** see class js::HashableValue */ - JS_HASH_KEY_EMPTY, - - /** error while running Ion code */ - JS_ION_ERROR, - - /** missing recover instruction result */ - JS_ION_BAILOUT, - - /** optimized out slot */ - JS_OPTIMIZED_OUT, - - /** uninitialized lexical bindings that produce ReferenceError on touch. */ - JS_UNINITIALIZED_LEXICAL, - - /** for local use */ - JS_GENERIC_MAGIC, - - JS_WHY_MAGIC_COUNT -} JSWhyMagic; - -#if defined(IS_LITTLE_ENDIAN) -# if defined(JS_NUNBOX32) -typedef union jsval_layout -{ - uint64_t asBits; - struct { - union { - int32_t i32; - uint32_t u32; - uint32_t boo; // Don't use |bool| -- it must be four bytes. - JSString* str; - JS::Symbol* sym; - JSObject* obj; - js::gc::Cell* cell; - void* ptr; - JSWhyMagic why; - size_t word; - uintptr_t uintptr; - } payload; - JSValueTag tag; - } s; - double asDouble; - void* asPtr; -} JSVAL_ALIGNMENT jsval_layout; -# elif defined(JS_PUNBOX64) -typedef union jsval_layout -{ - uint64_t asBits; -#if !defined(_WIN64) - /* MSVC does not pack these correctly :-( */ - struct { - uint64_t payload47 : 47; - JSValueTag tag : 17; - } debugView; -#endif - struct { - union { - int32_t i32; - uint32_t u32; - JSWhyMagic why; - } payload; - } s; - double asDouble; - void* asPtr; - size_t asWord; - uintptr_t asUIntPtr; -} JSVAL_ALIGNMENT jsval_layout; -# endif /* JS_PUNBOX64 */ -#else /* defined(IS_LITTLE_ENDIAN) */ -# if defined(JS_NUNBOX32) -typedef union jsval_layout -{ - uint64_t asBits; - struct { - JSValueTag tag; - union { - int32_t i32; - uint32_t u32; - uint32_t boo; // Don't use |bool| -- it must be four bytes. - JSString* str; - JS::Symbol* sym; - JSObject* obj; - js::gc::Cell* cell; - void* ptr; - JSWhyMagic why; - size_t word; - uintptr_t uintptr; - } payload; - } s; - double asDouble; - void* asPtr; -} JSVAL_ALIGNMENT jsval_layout; -# elif defined(JS_PUNBOX64) -typedef union jsval_layout -{ - uint64_t asBits; - struct { - JSValueTag tag : 17; - uint64_t payload47 : 47; - } debugView; - struct { - uint32_t padding; - union { - int32_t i32; - uint32_t u32; - JSWhyMagic why; - } payload; - } s; - double asDouble; - void* asPtr; - size_t asWord; - uintptr_t asUIntPtr; -} JSVAL_ALIGNMENT jsval_layout; -# endif /* JS_PUNBOX64 */ -#endif /* defined(IS_LITTLE_ENDIAN) */ - -/* - * For codesize purposes on some platforms, it's important that the - * compiler know that JS::Values constructed from constant values can be - * folded to constant bit patterns at compile time, rather than - * constructed at runtime. Doing this requires a fair amount of C++11 - * features, which are not supported on all of our compilers. Set up - * some defines and helper macros in an attempt to confine the ugliness - * here, rather than scattering it all about the file. The important - * features are: - * - * - constexpr; - * - defaulted functions; - * - C99-style designated initializers. - */ -#if defined(__clang__) -# if __has_feature(cxx_constexpr) && __has_feature(cxx_defaulted_functions) -# define JS_VALUE_IS_CONSTEXPR -# endif -#elif defined(__GNUC__) -/* - * We need 4.5 for defaulted functions, 4.6 for constexpr, 4.7 because 4.6 - * doesn't understand |(X) { .field = ... }| syntax, and 4.7.3 because - * versions prior to that have bugs in the C++ front-end that cause crashes. - */ -# if MOZ_GCC_VERSION_AT_LEAST(4, 7, 3) -# define JS_VALUE_IS_CONSTEXPR -# endif -#endif - -#if defined(JS_VALUE_IS_CONSTEXPR) -# define JS_RETURN_LAYOUT_FROM_BITS(BITS) \ - return (jsval_layout) { .asBits = (BITS) } -# define JS_VALUE_CONSTEXPR MOZ_CONSTEXPR -# define JS_VALUE_CONSTEXPR_VAR MOZ_CONSTEXPR_VAR -#else -# define JS_RETURN_LAYOUT_FROM_BITS(BITS) \ - jsval_layout l; \ - l.asBits = (BITS); \ - return l; -# define JS_VALUE_CONSTEXPR -# define JS_VALUE_CONSTEXPR_VAR const -#endif - -struct Value { - jsval_layout data; -}; |