* type check operations based on tag comparison are updated to be aggresively inlined replacing virtual function calls
* Object, String and Symbol use pre-defined tag values while other uses vtable address as its tag value
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Revise Object::getPrototypeFromConstructor. we should get prototype from context of consturctor
* We should pass Optional<Object*> instead of Value with newTarget.
* Give correct prototype value for function prototypes and functions
* Implement %ThrowTypeError% correctly
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* remove duplicated initialization for [[Prototype]] internal slot
* initialize prototype value directly when each Object created
* each prototype candidate object should be first marked as prototype object
* setGlobalIntrinsicObject marks fixed structure and prototype for global object's intrinsic object initialization
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* caller extension of ArgumentsObject is removed from recent ECMAScript standard
* __proto__ on object expression is changed.
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Object::construct directly calls each internal construct method without any check code
* ByteCodeInterpreter::constructOperation is added to run IsConstructor check code
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Implement basic behavior of for-await-of statement
* for statement should allow `for (..) let {}` form
* Fix bug in yield*
* AsyncFromSyncIteratorContinuation is changed on newer drafted spec(11.0). I apply the change.
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Generator is also executed until parameter initialize block when generator function is called
* Generator method in object should indicate correct place to start
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Reimplement yield * expression
We should implement yield* expression by ByteCodes
because we need to pause so many times at single iteration with async generator
* Merge multiple Iteration* ByteCodes into single IterationOperation
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Implement Async-from-Sync Iterator Object
* Replace object that used in iteration with IteratorRecord class
* Implement yield expression in async generator correctly
* Move ECMAScript operaton functions(promise*, await, generator, async) into related class
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
+ if test262 test has both IsNegative and IsAsync, we should consider IsNegativeFirst when figure out it ran successfully
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* apparent Identifier name is directly added to getter, setter function
* remove one LoadLiteral bytecode for each name of getter, setter function
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* add symbol name for property method if it is not an empty symbol
* MetaNode in parseLabelledStatement is fixed correctly
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* fix function length to represent the number of consecutive identifiers from the start of parameter list
* collect parameter names including the target names of patterns and rest element
* separate function length and parameter count
* simplify the process of parameter collecting and rename parameter related functions more intuitively
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* fix to compare string/symbol correctly in marking enumerated key
* fix iterator close operation to call 'return' function of iterator and then throw exception
* add implicit name in object property parsing
* resolve each target of pattern first, and then store the value into it
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Fix parser error related with async arrow function
* CodeBlock may have diffrent source code start position data(from `function` keyword)
- new ECMAScript spec says we should make function source string from `function` keyword
* Apply new spec on builtin Function constructor
* AsyncFunctions must have correct initial properties
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* IteratorBind bytecode is newly added to handle the iteratior binding according to the standard (es10)
* iterator binding operations for array element and rest element of array pattern are updated
* IteratorStep related with for-of operation is left as future work
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* handle IteratorRecord and its property by normal Object
* for the ease of accessing and handling in the interpreter
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Many JS Frameworks or librarys use `function.apply(<any>, arguments)` pattern.
but this statement generate arguments object. generateing arguments object is very expensive.
we can optimize simple cases like `function() { fn.apply(this, arguments); }`
* Merge many ByteCode opcodes into CallFunctionComplexCase.
* Do gc when allocate large ArrayBuferObject
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Implement RuntimeICUBinder
- ICU has verison name on its symbol name like u_tolower_XX.
but, we need to use escargot on various platform(without re-compile)
thus, I implement this library
* add ceil function on IEEE754
- there is an issue with -0 in builtin ceil function
* Use pypy instead of python for running test262(pypy is faster than python)
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Store array length property in its member variable not value vector
- This can reduce one of GC_MALLOC call if there is not value in ArrayObject other than fastmode value
* Prevent memory leak from VMInstance, Context
* Change vector capacity reserve strategy
Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
* Reduce size of RopeString
* Use fit memory if possible for ArrayObject fastModeData
* Re-implement ByteCode pruning logic
* Re-implement inline-cache for reducing memory usage
* Remove std::vector with gc_allocator. it can cause memory leak
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
* iterator and its related operations are renewed based on the ECMAScript2019
* disable one incorrect v8 TC
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Finding & read desc at once in ObjectStructure
* Improve findProperty performance in ObjectStructure
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
* update exponential operation and exponentiation-equal assignment
* unnecessary header files are removed in some Node files
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* BindingRestElement bytecode handles Iterator and EnumerateObject both
* MarkEnumerateKey bytecode is added to mark visited properties
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* EnumerateObject is reworked and two derived classes are newly added
* Object spread element is handled through EnumerateObjectWithDestruction
* for-in operation is handled through EnumerateObjectWithIteration
Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
* Divide ObjectStructure into 3 types
* Add transition look up hash map into ObjectStructureWithTransition
* Use faster version of log2 on Vector
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
* When evaluate for-in, we should call [[Enumerate]] function & we shouldn't literate symbols and non-enumerable names.
* In esprima, we need to reset lastUsingName on {open, close}Block
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
Basically when we iterated an object's keys, it was not in ascending order.
Also when one of the keys enumerable was changed to false, it was still in the list.
Enabled one V8 test.
Signed-off-by: bence gabor kis <kisbg@inf.u-szeged.hu>
* Rename ESCARGOT_OUTPUT=bin into shell and make shell_test for testing.
* Remove ESCARGOT_SHELL, -SCARGOT_STANDALONE and Rename ESCARGOT_ENABLE_VENDORTEST into ESCARGOT_ENABLE_TEST.
* Fix bug in PersistentRefHolder
* Add DebuggerStatementNode for preventing parsing error even if we cannot support
* Revise Platform layer for supporting es6 module
* Implmenent class constructor toString
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
* we should replace block context before executing update expression in for statement
* merge ObjectDefineGetter, ObjectDefineSetter byte code into one code
* add some missed scan operation in parser
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
* Reimplement finally block in try-statement.
* Replace `ReturnFunction`, `ReturnFunctionWithValue` bytecode with `End`.
* When for-of loop is exited by exception or break, we need to close iterator
* Don't add Return Statement in ByteCodeGenerator. We should add Return Statement in ScriptParser.
* Fix bug in yield expression.
* Implement add implicit class name on class expression.
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
