JSRuntime

java.lang.Object
- com.oracle.truffle.js.runtime.JSRuntime

public final class JSRuntime
extends Object

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DONE`
`static com.oracle.truffle.api.object.HiddenKey`	`ENUMERATE_ITERATOR_ID`
`static com.oracle.truffle.api.object.HiddenKey`	`FINALIZATION_GROUP_CLEANUP_ITERATOR_ID`
`static com.oracle.truffle.api.object.HiddenKey`	`FOR_IN_ITERATOR_ID`
`static String`	`HINT_DEFAULT`
`static String`	`HINT_NUMBER`
`static String`	`HINT_STRING`
`static String`	`INFINITY_STRING`
`static long`	`INVALID_ARRAY_INDEX`
`static long`	`INVALID_INTEGER_INDEX`
`static long`	`INVALID_SAFE_INTEGER`
`static com.oracle.truffle.api.object.HiddenKey`	`ITERATED_OBJECT_ID`
`static int`	`ITERATION_KIND_KEY`
`static int`	`ITERATION_KIND_KEY_PLUS_VALUE`
`static int`	`ITERATION_KIND_VALUE`
`static com.oracle.truffle.api.object.HiddenKey`	`ITERATOR_NEXT_INDEX`
`static char`	`LINE_SEPARATOR`
`static long`	`MAX_ARRAY_LENGTH`
`static long`	`MAX_BIG_INT_EXPONENT`
`static int`	`MAX_INTEGER_INDEX_DIGITS`
`static double`	`MAX_SAFE_INTEGER`
`static int`	`MAX_SAFE_INTEGER_DIGITS`
`static int`	`MAX_SAFE_INTEGER_IN_FLOAT`
`static long`	`MAX_SAFE_INTEGER_LONG`
`static int`	`MAX_UINT32_DIGITS`
`static double`	`MIN_SAFE_INTEGER`
`static int`	`MIN_SAFE_INTEGER_IN_FLOAT`
`static long`	`MIN_SAFE_INTEGER_LONG`
`static String`	`NAN_STRING`
`static String`	`NEGATIVE_INFINITY_STRING`
`static String`	`NEXT`
`static String`	`POSITIVE_INFINITY_STRING`
`static String`	`PRIMITIVE_VALUE`
`static String`	`TO_STRING`
`static int`	`TO_STRING_MAX_DEPTH`
`static double`	`TWO32`
`static String`	`VALUE`
`static String`	`VALUE_OF`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`arrayIndexLengthInRange(String index)`
`static int`	`booleanToNumber(boolean value)`
`static String`	`booleanToString(boolean value)`
`static Object`	`boxIndex(long longIndex, com.oracle.truffle.api.profiles.ConditionProfile indexInIntRangeConditionProfile)`
`static Object`	`call(Object fnObj, Object holder, Object[] arguments)` ES2015 7.3.12 Call(F, V, arguments).
`static Object`	`call(Object fnObj, Object holder, Object[] arguments, com.oracle.truffle.api.nodes.Node encapsulatingNode)`
`static Object`	`canonicalNumericIndexString(String s)` ES2015, 7.1.16 CanonicalNumericIndexString().
`static long`	`castArrayIndex(double doubleValue)`
`static long`	`castArrayIndex(long longValue)`
`static char`	`charAt(CharSequence cs, int index)`
`static String`	`collectionToConsoleString(com.oracle.truffle.api.object.DynamicObject obj, String name, JSHashMap map, int depth, boolean allowSideEffects)`
`static int`	`comparePropertyKeys(Object key1, Object key2)` Compare property keys such that a stable sort using it would maintain the following order.
`static Object`	`construct(Object fnObj, Object[] arguments)`
`static com.oracle.truffle.api.object.DynamicObject`	`createArrayFromList(JSContext context, List<? extends Object> list)` ES2016 7.3.16 CreateArrayFromList(elements).
`static boolean`	`createDataProperty(com.oracle.truffle.api.object.DynamicObject o, Object p, Object v)` ES2015, 7.3.4 CreateDataProperty(O, P, V).
`static boolean`	`createDataProperty(com.oracle.truffle.api.object.DynamicObject o, Object p, Object v, boolean doThrow)`
`static boolean`	`createDataPropertyOrThrow(com.oracle.truffle.api.object.DynamicObject o, Object p, Object v)` ES2015, 7.3.6 CreateDataPropertyOrThrow(O, P, V).
`static List<Object>`	`createListFromArrayLikeAllowSymbolString(Object obj)`
`static void`	`definePropertyOrThrow(com.oracle.truffle.api.object.DynamicObject o, Object key, PropertyDescriptor desc)` ES2016, 7.3.7 DefinePropertyOrThrow(O, P, desc).
`static boolean`	`doubleIsRepresentableAsInt(double d)`
`static boolean`	`doubleIsRepresentableAsInt(double d, boolean ignoreNegativeZero)`
`static boolean`	`doubleIsRepresentableAsLong(double d)`
`static boolean`	`doubleIsRepresentableAsUnsignedInt(double d, boolean ignoreNegativeZero)`
`static Number`	`doubleToNarrowestNumber(double d)`
`static String`	`doubleToString(double d)` 9.8.1 ToString Applied to the Number Type.
`static String`	`doubleToString(double d, int radix)`
`static double`	`doubleValue(Number number)`
`static double`	`doubleValue(Number number, com.oracle.truffle.api.profiles.BranchProfile profile)`
`static double`	`doubleValueVirtual(Number number)`
`static boolean`	`equal(Object a, Object b)`
`static com.oracle.truffle.api.object.DynamicObject`	`expectJSObject(Object to, com.oracle.truffle.api.profiles.BranchProfile errorBranch)`
`static Object`	`exportValue(Object value)` Convert the value to a type valid in Truffle Interop.
`static Object[]`	`exportValueArray(Object[] arr)`
`static int`	`firstExpIndexInString(String str)` Returns the first index of a String that contains either 'e' or 'E'.
`static int`	`firstNonWhitespaceIndex(String string, boolean useLineTerminators)`
`static float`	`floatValue(Number n)`
`static float`	`floatValueVirtual(Number n)`
`static String`	`formatDtoA(double value)`
`static String`	`formatDtoA(double d, int radix)`
`static String`	`formatDtoAExponential(double d)`
`static String`	`formatDtoAExponential(double d, int digits)`
`static String`	`formatDtoAFixed(double value, int digits)`
`static String`	`formatDtoAPrecision(double value, int precision)`
`static com.oracle.truffle.api.object.DynamicObject`	`fromPropertyDescriptor(PropertyDescriptor desc, JSContext context)`
`static Object`	`getArg(Object[] args, int i, Object defaultValue)`
`static Object`	`getArgOrUndefined(Object[] args, int i)`
`static String`	`getConstructorName(com.oracle.truffle.api.object.DynamicObject receiver)` Carefully try getting the constructor name, must not throw.
`static Object`	`getDataProperty(com.oracle.truffle.api.object.DynamicObject thisObj, Object key)`
`static GraalJSException`	`getException(Object errorObject)`
`static JSRealm`	`getFunctionRealm(Object obj, JSContext context)`
`static JSRealm`	`getFunctionRealm(Object obj, JSRealm currentRealm)`
`static int`	`getOffset(int start, int length, com.oracle.truffle.api.profiles.ConditionProfile profile)`
`static long`	`getOffset(long start, long length, com.oracle.truffle.api.profiles.ConditionProfile profile)`
`static boolean`	`identical(Object a, Object b)`
`static double`	`identifyInfinity(String str, char firstChar)`
`static Object`	`importValue(Object value)` Convert the value to a type valid in Graal.js, from something received via TruffleInterop.
`static boolean`	`intIsRepresentableAsFloat(int value)`
`static int`	`intValue(Number number)`
`static int`	`intValueVirtual(Number number)`
`static boolean`	`isArray(Object obj)` ES2015 7.2.2 IsArray(argument).
`static boolean`	`isArrayIndex(double doubleValue)`
`static boolean`	`isArrayIndex(int intValue)`
`static boolean`	`isArrayIndex(long longValue)`
`static boolean`	`isArrayIndex(Object property)`
`static boolean`	`isArrayIndex(String property)`
`static boolean`	`isAsciiDigit(char c)`
`static boolean`	`isBigInt(Object value)`
`static boolean`	`isCallable(Object value)` ES2015 7.2.3 IsCallable(argument).
`static boolean`	`isCallableForeign(Object value)`
`static boolean`	`isCallableIsJSObject(com.oracle.truffle.api.object.DynamicObject value)`
`static boolean`	`isCallableProxy(com.oracle.truffle.api.object.DynamicObject proxy)`
`static boolean`	`isConstructor(Object constrObj)` ES2016 7.2.4 IsConstructor().
`static boolean`	`isConstructorForeign(Object value)`
`static boolean`	`isConstructorProxy(com.oracle.truffle.api.object.DynamicObject constrObj)`
`static boolean`	`isForeignObject(Object value)`
`static boolean`	`isForeignObject(com.oracle.truffle.api.interop.TruffleObject value)`
`static boolean`	`isGenerator(Object genObj)`
`static boolean`	`isGeneratorProxy(com.oracle.truffle.api.object.DynamicObject genObj)`
`static boolean`	`isHex(char c)`
`static boolean`	`isInteger(Object obj)` ES2015, 7.2.6 IsInteger.
`static boolean`	`isIntegerIndex(long longValue)`
`static boolean`	`isJavaNumber(Object value)`
`static boolean`	`isJavaPrimitive(Object value)`
`static boolean`	`isJSFunctionRootNode(com.oracle.truffle.api.nodes.RootNode rootNode)`
`static boolean`	`isJSNative(Object value)` Is value a native JavaScript object or primitive?
`static boolean`	`isJSPrimitive(Object value)`
`static boolean`	`isJSRootNode(com.oracle.truffle.api.nodes.RootNode rootNode)`
`static boolean`	`isLazyString(Object value)` Is value is a `CharSequence` that lazily evaluates to a `String`).
`static boolean`	`isNaN(Object value)`
`static boolean`	`isNegativeZero(double d)`
`static boolean`	`isNullish(Object value)` Returns whether `value` is JS `null` or `undefined` or a foreign null.
`static boolean`	`isNullOrUndefined(Object value)` Returns whether `value` is JS `null` or `undefined`.
`static boolean`	`isNumber(Object value)`
`static boolean`	`isObject(Object vo)` Returns whether object is a DynamicObject.
`static boolean`	`isPositiveInfinity(double d)`
`static boolean`	`isPropertyKey(Object key)`
`static boolean`	`isPrototypeOf(com.oracle.truffle.api.object.DynamicObject object, com.oracle.truffle.api.object.DynamicObject prototype)`
`static boolean`	`isProxyAnArray(com.oracle.truffle.api.object.DynamicObject proxy)`
`static boolean`	`isRepresentableAsUnsignedInt(long value)`
`static boolean`	`isRevokedCallableProxy(com.oracle.truffle.api.object.DynamicObject revokedProxy)`
`static boolean`	`isSafeInteger(double value)`
`static boolean`	`isSafeInteger(long value)`
`static boolean`	`isSameValue(Object x, Object y)` 9.12 SameValue Algorithm.
`static boolean`	`isString(Object value)` Is value a native JavaScript string.
`static boolean`	`isStringClass(Class<?> clazz)`
`static boolean`	`isTypedArrayBigIntFactory(TypedArrayFactory factory)`
`static boolean`	`isValidArrayLength(double doubleValue)`
`static boolean`	`isValidArrayLength(int intValue)`
`static boolean`	`isValidArrayLength(long longValue)` Checks whether a long value is within the valid range of array lengths.
`static boolean`	`isWhiteSpace(char cp)`
`static String`	`javaArrayToString(Object array)`
`static String`	`javaToString(Object obj)`
`static Object`	`jsObjectToJavaObject(Object obj)`
`static int`	`lastNonWhitespaceIndex(String string, boolean useLineTerminators)`
`static int`	`length(CharSequence cs)`
`static int`	`length(CharSequence cs, com.oracle.truffle.api.profiles.ConditionProfile stringProfile, com.oracle.truffle.api.profiles.ConditionProfile lazyStringProfile)`
`static boolean`	`longIsRepresentableAsInt(long value)`
`static Number`	`longToIntOrDouble(long value)`
`static long`	`longValue(Number n)`
`static double`	`mathCeil(double d)`
`static double`	`mathFloor(double d)`
`static double`	`mathRint(double d)`
`static Object`	`nullToUndefined(Object value)`
`static String`	`numberToString(Number number)`
`static String`	`objectToConsoleString(com.oracle.truffle.api.object.DynamicObject obj, String name, int depth, boolean allowSideEffects)`
`static String`	`objectToConsoleString(com.oracle.truffle.api.object.DynamicObject obj, String name, int depth, String[] internalKeys, Object[] internalValues, boolean allowSideEffects)`
`static long`	`parseArrayIndexRaw(String string)` NB: does not check whether the result fits into the uint32 range.
`static double`	`parseDoubleOrNaN(String input)` Like `Double.parseDouble(String)`, but does not allow trailing `d` or `f`.
`static double`	`parseRawDontFitLong(String string, int radix, int startPos, int endPos, boolean negate)`
`static Number`	`parseRawFitsLong(String string, int radix, int startPos, int endPos, boolean negate)`
`static long`	`parseSafeInteger(String s)`
`static long`	`parseSafeInteger(String s, int beginIndex, int endIndex, int radix)`
`static Object`	`positiveLongToIntOrDouble(long value)`
`static boolean`	`propertyKeyEquals(Object a, Object b)`
`static long`	`propertyKeyToArrayIndex(Object propertyKey)`
`static long`	`propertyKeyToIntegerIndex(Object propertyKey)`
`static long`	`propertyNameToArrayIndex(String propertyName)`
`static long`	`propertyNameToIntegerIndex(String propertyName)`
`static String`	`quote(String value)`
`static <T> T`	`requireObjectCoercible(T argument, JSContext context)` Implementation of the abstract operation RequireObjectCoercible.
`static <E extends Throwable> RuntimeException`	`rethrow(Throwable ex)`
`static String`	`safeToString(Object value)`
`static String`	`stringConcat(String first, String second)` Concatenate two strings, preallocating the buffer with the exact length of the result.
`static BigInt`	`stringToBigInt(String s)`
`static Number`	`stringToNumber(String string)` Implementation of ECMA 9.3.1 "ToNumber Applied to the String Type".
`static BigInt`	`toBigInt(Object value)`
`static boolean`	`toBoolean(Number number)`
`static boolean`	`toBoolean(Object value)` Implementation of ECMA 9.2 "ToBoolean".
`static String`	`toDisplayString(Object value, boolean allowSideEffects)`
`static String`	`toDisplayString(Object value, int currentDepth, Object parent, boolean allowSideEffects)`
`static String`	`toDisplayString(Object value, int currentDepth, Object parent, boolean quoteString, boolean allowSideEffects)`
`static double`	`toDouble(Number value)` ToDouble for Numbers.
`static double`	`toDouble(Object value)` Non-standard "ToDouble" utility function.
`static int`	`toInt16(long number)`
`static int`	`toInt16(Number number)`
`static int`	`toInt16(Object value)` Implementation of ECMA 7.1.7 "ToInt16".
`static int`	`toInt32(double value)`
`static int`	`toInt32(Number number)` Convert JS number to int32.
`static int`	`toInt32(Object value)` Implementation of ECMA 9.5 "ToInt32".
`static int`	`toInt32NoTruncate(double value)`
`static int`	`toInt8(long number)`
`static int`	`toInt8(Number number)`
`static int`	`toInt8(Object value)` Implementation of ECMA 7.1.9 "ToInt8".
`static long`	`toInteger(Number number)`
`static long`	`toInteger(Object value)` Implementation of ECMA 9.4 "ToInteger".
`static Object`	`toJavaNull(Object value)`
`static Object`	`toJSNull(Object value)`
`static double`	`toLength(double d)`
`static int`	`toLength(int value)`
`static long`	`toLength(long l)`
`static long`	`toLength(Object value)` Implementation of ECMAScript6 7.1.15 "ToLength".
`static long`	`toLong(Number value)` Convert JS number to long.
`static Number`	`toNumber(Object value)` Implementation of ECMA 9.3 "ToNumber".
`static Number`	`toNumberFromPrimitive(Object value)`
`static Object`	`toNumeric(Object value)`
`static com.oracle.truffle.api.interop.TruffleObject`	`toObject(JSContext ctx, Object value)` Implementation of ECMA 9.9 "ToObject".
`static com.oracle.truffle.api.interop.TruffleObject`	`toObjectFromPrimitive(JSContext ctx, Object value, boolean useJavaWrapper)`
`static Object`	`toPrimitive(Object value)` Implementation of ECMA 7.1.1 "ToPrimitive", with NO hint given.
`static Object`	`toPrimitive(Object value, String hint)` Implementation of ECMA 7.1.1 "ToPrimitive".
`static Object`	`toPrimitiveFromForeign(Object tObj, String hint)` Converts a foreign object to a primitive value.
`static PropertyDescriptor`	`toPropertyDescriptor(Object property)` Implementation of the ToPropertyDescriptor function as defined in ECMA 8.10.5.
`static Object`	`toPropertyKey(Object arg)` ES2015 7.1.14 ToPropertyKey(argument).
`static String`	`toString(com.oracle.truffle.api.object.DynamicObject value)`
`static String`	`toString(Object value)` The abstract operation ToString.
`static String`	`toStringIsString(Object value)`
`static JSException`	`toStringTypeError(Object value)`
`static int`	`toUInt16(long number)`
`static int`	`toUInt16(Number number)`
`static int`	`toUInt16(Object value)` Implementation of ECMA 9.7 "ToUInt16".
`static long`	`toUInt32(double value)`
`static long`	`toUInt32(long value)`
`static long`	`toUInt32(Number number)`
`static long`	`toUInt32(Object value)` Implementation of ECMA 9.6 "ToUInt32".
`static long`	`toUInt32NoTruncate(double value)`
`static int`	`toUInt8(long number)`
`static int`	`toUInt8(Number number)`
`static int`	`toUInt8(Object value)` Implementation of ECMA 7.1.10 "ToUInt8".
`static String`	`trimJSWhiteSpace(String string)`
`static String`	`trimJSWhiteSpace(String string, boolean useLineTerminators)`
`static double`	`truncateDouble(double value)`
`static double`	`truncateDouble2(double thing)`
`static String`	`typeof(Object value)`
`static Object`	`undefinedToNull(Object value)`
`static int`	`valueInHex(char c)`
`static int`	`valueInRadix(char c, int radix)`
`static int`	`valueInRadix10(char c)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INFINITY_STRING

public static final String INFINITY_STRING

See Also:: Constant Field Values

NEGATIVE_INFINITY_STRING

public static final String NEGATIVE_INFINITY_STRING

See Also:: Constant Field Values

POSITIVE_INFINITY_STRING

public static final String POSITIVE_INFINITY_STRING

See Also:: Constant Field Values

NAN_STRING
```
public static final String NAN_STRING
```
See Also:

Constant Field Values

TWO32
```
public static final double TWO32
```
See Also:

Constant Field Values

LINE_SEPARATOR
```
public static final char LINE_SEPARATOR
```
See Also:

Constant Field Values

INVALID_ARRAY_INDEX
```
public static final long INVALID_ARRAY_INDEX
```
See Also:

Constant Field Values

MAX_ARRAY_LENGTH
```
public static final long MAX_ARRAY_LENGTH
```
See Also:

Constant Field Values

MAX_UINT32_DIGITS
```
public static final int MAX_UINT32_DIGITS
```
See Also:

Constant Field Values

MAX_SAFE_INTEGER

public static final double MAX_SAFE_INTEGER

MIN_SAFE_INTEGER

public static final double MIN_SAFE_INTEGER

MAX_SAFE_INTEGER_LONG

public static final long MAX_SAFE_INTEGER_LONG

MIN_SAFE_INTEGER_LONG

public static final long MIN_SAFE_INTEGER_LONG

INVALID_INTEGER_INDEX
```
public static final long INVALID_INTEGER_INDEX
```
See Also:

Constant Field Values

MAX_INTEGER_INDEX_DIGITS
```
public static final int MAX_INTEGER_INDEX_DIGITS
```
See Also:

Constant Field Values

MAX_SAFE_INTEGER_DIGITS
```
public static final int MAX_SAFE_INTEGER_DIGITS
```
See Also:

Constant Field Values

MAX_SAFE_INTEGER_IN_FLOAT
```
public static final int MAX_SAFE_INTEGER_IN_FLOAT
```
See Also:

Constant Field Values

MIN_SAFE_INTEGER_IN_FLOAT
```
public static final int MIN_SAFE_INTEGER_IN_FLOAT
```
See Also:

Constant Field Values

MAX_BIG_INT_EXPONENT
```
public static final long MAX_BIG_INT_EXPONENT
```
See Also:

Constant Field Values

INVALID_SAFE_INTEGER
```
public static final long INVALID_SAFE_INTEGER
```
See Also:

Constant Field Values

TO_STRING
```
public static final String TO_STRING
```
See Also:

Constant Field Values

VALUE_OF
```
public static final String VALUE_OF
```
See Also:

Constant Field Values

VALUE
```
public static final String VALUE
```
See Also:

Constant Field Values

DONE
```
public static final String DONE
```
See Also:

Constant Field Values

NEXT
```
public static final String NEXT
```
See Also:

Constant Field Values

HINT_STRING
```
public static final String HINT_STRING
```
See Also:

Constant Field Values

HINT_NUMBER
```
public static final String HINT_NUMBER
```
See Also:

Constant Field Values

HINT_DEFAULT

public static final String HINT_DEFAULT

See Also:: Constant Field Values

PRIMITIVE_VALUE

public static final String PRIMITIVE_VALUE

See Also:: Constant Field Values

ITERATED_OBJECT_ID

public static final com.oracle.truffle.api.object.HiddenKey ITERATED_OBJECT_ID

ITERATOR_NEXT_INDEX

public static final com.oracle.truffle.api.object.HiddenKey ITERATOR_NEXT_INDEX

ENUMERATE_ITERATOR_ID

public static final com.oracle.truffle.api.object.HiddenKey ENUMERATE_ITERATOR_ID

FOR_IN_ITERATOR_ID

public static final com.oracle.truffle.api.object.HiddenKey FOR_IN_ITERATOR_ID

FINALIZATION_GROUP_CLEANUP_ITERATOR_ID

public static final com.oracle.truffle.api.object.HiddenKey FINALIZATION_GROUP_CLEANUP_ITERATOR_ID

ITERATION_KIND_KEY
```
public static final int ITERATION_KIND_KEY
```
See Also:

Constant Field Values

ITERATION_KIND_VALUE
```
public static final int ITERATION_KIND_VALUE
```
See Also:

Constant Field Values

ITERATION_KIND_KEY_PLUS_VALUE
```
public static final int ITERATION_KIND_KEY_PLUS_VALUE
```
See Also:

Constant Field Values

TO_STRING_MAX_DEPTH
```
public static final int TO_STRING_MAX_DEPTH
```
See Also:

Constant Field Values

Method Detail

doubleIsRepresentableAsInt

public static boolean doubleIsRepresentableAsInt(double d)

doubleIsRepresentableAsInt

public static boolean doubleIsRepresentableAsInt(double d,
                                                 boolean ignoreNegativeZero)

doubleIsRepresentableAsUnsignedInt

public static boolean doubleIsRepresentableAsUnsignedInt(double d,
                                                         boolean ignoreNegativeZero)

isNegativeZero

public static boolean isNegativeZero(double d)

isPositiveInfinity

public static boolean isPositiveInfinity(double d)

doubleToNarrowestNumber

public static Number doubleToNarrowestNumber(double d)

longIsRepresentableAsInt

public static boolean longIsRepresentableAsInt(long value)

isRepresentableAsUnsignedInt

public static boolean isRepresentableAsUnsignedInt(long value)

doubleIsRepresentableAsLong

public static boolean doubleIsRepresentableAsLong(double d)

positiveLongToIntOrDouble

public static Object positiveLongToIntOrDouble(long value)

longToIntOrDouble

public static Number longToIntOrDouble(long value)

isNaN

public static boolean isNaN(Object value)

typeof

public static String typeof(Object value)

isObject
```
public static boolean isObject(Object vo)
```
Returns whether object is a DynamicObject. JS-Null and JS-Undefined are not considered objects.

isNullOrUndefined

public static boolean isNullOrUndefined(Object value)

Returns whether value is JS null or undefined.

isNullish
```
public static boolean isNullish(Object value)
```
Returns whether value is JS null or undefined or a foreign null.

toPrimitive
```
public static Object toPrimitive(Object value)
```
Implementation of ECMA 7.1.1 "ToPrimitive", with NO hint given.

Parameters:

value - an Object to be converted to a primitive value

Returns:

an Object representing the primitive value of the parameter

toPrimitive
```
public static Object toPrimitive(Object value,
                                 String hint)
```
Implementation of ECMA 7.1.1 "ToPrimitive".

Parameters:

value - an Object to be converted to a primitive value

hint - the preferred type of primitive to return ("number", "string" or "default")

Returns:

an Object representing the primitive value of the parameter

toPrimitiveFromForeign

public static Object toPrimitiveFromForeign(Object tObj,
                                            String hint)

Converts a foreign object to a primitive value.

toBoolean
```
public static boolean toBoolean(Object value)
```
Implementation of ECMA 9.2 "ToBoolean".

Parameters:

value - an Object to be converted to a Boolean

Returns:

an Object representing the primitive value of the parameter

toBoolean

public static boolean toBoolean(Number number)

toNumber
```
public static Number toNumber(Object value)
```
Implementation of ECMA 9.3 "ToNumber".

Parameters:

value - an Object to be converted to a Number

Returns:

an Object representing the Number value of the parameter

toNumeric

public static Object toNumeric(Object value)

toNumberFromPrimitive

public static Number toNumberFromPrimitive(Object value)

booleanToNumber

public static int booleanToNumber(boolean value)

isNumber

public static boolean isNumber(Object value)

toBigInt

public static BigInt toBigInt(Object value)

isBigInt

public static boolean isBigInt(Object value)

isJavaNumber

public static boolean isJavaNumber(Object value)

stringToNumber
```
public static Number stringToNumber(String string)
```
Implementation of ECMA 9.3.1 "ToNumber Applied to the String Type".

Parameters:

string -

Returns:

a Number

parseDoubleOrNaN
```
public static double parseDoubleOrNaN(String input)
```
Like Double.parseDouble(String), but does not allow trailing d or f.

Returns:

double value or Double.NaN if not parsable.

firstExpIndexInString
```
public static int firstExpIndexInString(String str)
```
Returns the first index of a String that contains either 'e' or 'E'.

identifyInfinity

public static double identifyInfinity(String str,
                                      char firstChar)

toInteger
```
public static long toInteger(Object value)
```
Implementation of ECMA 9.4 "ToInteger".

Parameters:

value - an Object to be converted to an Integer

Returns:

an Object representing the Integer value of the parameter

toInteger

public static long toInteger(Number number)

toLength
```
public static long toLength(Object value)
```
Implementation of ECMAScript6 7.1.15 "ToLength".

toLength

public static double toLength(double d)

toLength
```
public static long toLength(long l)
```

toLength

public static int toLength(int value)

toUInt8
```
public static int toUInt8(Object value)
```
Implementation of ECMA 7.1.10 "ToUInt8".

Parameters:

value - an Object to be converted to a UInt8

Returns:

an Object representing the Number value of the parameter

toUInt8

public static int toUInt8(Number number)

toUInt8

public static int toUInt8(long number)

toInt8
```
public static int toInt8(Object value)
```
Implementation of ECMA 7.1.9 "ToInt8".

Parameters:

value - an Object to be converted to a Int8

Returns:

an Object representing the Number value of the parameter

toInt8

public static int toInt8(Number number)

toInt8

public static int toInt8(long number)

toUInt16
```
public static int toUInt16(Object value)
```
Implementation of ECMA 9.7 "ToUInt16".

Parameters:

value - an Object to be converted to a UInt16

Returns:

an Object representing the Number value of the parameter

toUInt16

public static int toUInt16(Number number)

toUInt16

public static int toUInt16(long number)

toInt16
```
public static int toInt16(Object value)
```
Implementation of ECMA 7.1.7 "ToInt16".

Parameters:

value - an Object to be converted to a Int16

Returns:

an Object representing the Number value of the parameter

toInt16

public static int toInt16(Number number)

toInt16

public static int toInt16(long number)

toUInt32
```
public static long toUInt32(Object value)
```
Implementation of ECMA 9.6 "ToUInt32".

Parameters:

value - an Object to be converted to a UInt32

Returns:

an Object representing the Number value of the parameter

toUInt32

public static long toUInt32(Number number)

toUInt32

public static long toUInt32(long value)

toUInt32

public static long toUInt32(double value)

toUInt32NoTruncate

public static long toUInt32NoTruncate(double value)

truncateDouble

public static double truncateDouble(double value)

truncateDouble2

public static double truncateDouble2(double thing)

toInt32
```
public static int toInt32(Object value)
```
Implementation of ECMA 9.5 "ToInt32".

Parameters:

value - an Object to be converted to a Int32

Returns:

an Object representing the Number value of the parameter

toInt32

public static int toInt32(Number number)

Convert JS number to int32.

toInt32

public static int toInt32(double value)

toInt32NoTruncate

public static int toInt32NoTruncate(double value)

toDouble
```
public static double toDouble(Object value)
```
Non-standard "ToDouble" utility function.

Returns:

the result of calling ToNumber, but converted to a primitive double

toDouble
```
public static double toDouble(Number value)
```
ToDouble for Numbers. In fact, just forwarding to doubleValue(). Keep it, as otherwise it is very easy to mistakenly call toDouble() inadvertently.

toString
```
public static String toString(Object value)
```
The abstract operation ToString. Converts a value to a string.

safeToString

public static String safeToString(Object value)

toDisplayString

public static String toDisplayString(Object value,
                                     boolean allowSideEffects)

toDisplayString

public static String toDisplayString(Object value,
                                     int currentDepth,
                                     Object parent,
                                     boolean allowSideEffects)

toDisplayString

public static String toDisplayString(Object value,
                                     int currentDepth,
                                     Object parent,
                                     boolean quoteString,
                                     boolean allowSideEffects)

objectToConsoleString

public static String objectToConsoleString(com.oracle.truffle.api.object.DynamicObject obj,
                                           String name,
                                           int depth,
                                           boolean allowSideEffects)

objectToConsoleString

public static String objectToConsoleString(com.oracle.truffle.api.object.DynamicObject obj,
                                           String name,
                                           int depth,
                                           String[] internalKeys,
                                           Object[] internalValues,
                                           boolean allowSideEffects)

javaArrayToString

public static String javaArrayToString(Object array)

collectionToConsoleString

public static String collectionToConsoleString(com.oracle.truffle.api.object.DynamicObject obj,
                                               String name,
                                               JSHashMap map,
                                               int depth,
                                               boolean allowSideEffects)

toStringTypeError

public static JSException toStringTypeError(Object value)

booleanToString

public static String booleanToString(boolean value)

toString

public static String toString(com.oracle.truffle.api.object.DynamicObject value)

numberToString

public static String numberToString(Number number)

length

public static int length(CharSequence cs)

length

public static int length(CharSequence cs,
                         com.oracle.truffle.api.profiles.ConditionProfile stringProfile,
                         com.oracle.truffle.api.profiles.ConditionProfile lazyStringProfile)

charAt

public static char charAt(CharSequence cs,
                          int index)

javaToString

public static String javaToString(Object obj)

propertyKeyEquals

public static boolean propertyKeyEquals(Object a,
                                        Object b)

doubleToString

public static String doubleToString(double d,
                                    int radix)

doubleToString
```
public static String doubleToString(double d)
```
9.8.1 ToString Applied to the Number Type. Better use JSDoubleToStringNode where appropriate.

formatDtoA

public static String formatDtoA(double value)

formatDtoAPrecision

public static String formatDtoAPrecision(double value,
                                         int precision)

formatDtoAExponential

public static String formatDtoAExponential(double d,
                                           int digits)

formatDtoAExponential

public static String formatDtoAExponential(double d)

formatDtoAFixed

public static String formatDtoAFixed(double value,
                                     int digits)

formatDtoA

public static String formatDtoA(double d,
                                int radix)

toObject

public static com.oracle.truffle.api.interop.TruffleObject toObject(JSContext ctx,
                                                                    Object value)

Implementation of ECMA 9.9 "ToObject".

Parameters:: value - an Object to be converted to an Object
Returns:: an Object

toObjectFromPrimitive

public static com.oracle.truffle.api.interop.TruffleObject toObjectFromPrimitive(JSContext ctx,
                                                                                 Object value,
                                                                                 boolean useJavaWrapper)

isSameValue

public static boolean isSameValue(Object x,
                                  Object y)

9.12 SameValue Algorithm.

equal

public static boolean equal(Object a,
                            Object b)

isForeignObject

public static boolean isForeignObject(Object value)

isForeignObject

public static boolean isForeignObject(com.oracle.truffle.api.interop.TruffleObject value)

identical

public static boolean identical(Object a,
                                Object b)

requireObjectCoercible

public static <T> T requireObjectCoercible(T argument,
                                           JSContext context)

Implementation of the abstract operation RequireObjectCoercible.

toPropertyDescriptor
```
public static PropertyDescriptor toPropertyDescriptor(Object property)
```
Implementation of the ToPropertyDescriptor function as defined in ECMA 8.10.5.

Returns:

a property descriptor

valueInRadix10

public static int valueInRadix10(char c)

valueInRadix

public static int valueInRadix(char c,
                               int radix)

valueInHex
```
public static int valueInHex(char c)
```

isHex
```
public static boolean isHex(char c)
```

parseArrayIndexRaw
```
public static long parseArrayIndexRaw(String string)
```
NB: does not check whether the result fits into the uint32 range. The caller is responsible for the range check and must take care not to pass in too long strings.

Returns:

parsed unsigned integer value or INVALID_UINT32 if the string is not parsable.

See Also:

JSRuntime.isArrayIndex(long)

trimJSWhiteSpace

public static String trimJSWhiteSpace(String string)

trimJSWhiteSpace

public static String trimJSWhiteSpace(String string,
                                      boolean useLineTerminators)

firstNonWhitespaceIndex

public static int firstNonWhitespaceIndex(String string,
                                          boolean useLineTerminators)

lastNonWhitespaceIndex

public static int lastNonWhitespaceIndex(String string,
                                         boolean useLineTerminators)

isWhiteSpace

public static boolean isWhiteSpace(char cp)

isValidArrayLength
```
public static boolean isValidArrayLength(long longValue)
```
Checks whether a long value is within the valid range of array lengths. Note the difference to isArrayIndex, that does not allow the MAX_ARRAY_LENGTH value.

isValidArrayLength

public static boolean isValidArrayLength(double doubleValue)

isValidArrayLength

public static boolean isValidArrayLength(int intValue)

isIntegerIndex

public static boolean isIntegerIndex(long longValue)

isArrayIndex

public static boolean isArrayIndex(int intValue)

isArrayIndex

public static boolean isArrayIndex(long longValue)

isArrayIndex

public static boolean isArrayIndex(double doubleValue)

isArrayIndex

public static boolean isArrayIndex(String property)

isArrayIndex

public static boolean isArrayIndex(Object property)

castArrayIndex

public static long castArrayIndex(double doubleValue)

castArrayIndex

public static long castArrayIndex(long longValue)

isAsciiDigit

public static boolean isAsciiDigit(char c)

propertyNameToArrayIndex

public static long propertyNameToArrayIndex(String propertyName)

arrayIndexLengthInRange

public static boolean arrayIndexLengthInRange(String index)

propertyKeyToArrayIndex

public static long propertyKeyToArrayIndex(Object propertyKey)

propertyNameToIntegerIndex

public static long propertyNameToIntegerIndex(String propertyName)

propertyKeyToIntegerIndex

public static long propertyKeyToIntegerIndex(Object propertyKey)

isJSNative
```
public static boolean isJSNative(Object value)
```
Is value a native JavaScript object or primitive?

isJSPrimitive

public static boolean isJSPrimitive(Object value)

isString

public static boolean isString(Object value)

Is value a native JavaScript string.

toStringIsString

public static String toStringIsString(Object value)

isLazyString
```
public static boolean isLazyString(Object value)
```
Is value is a CharSequence that lazily evaluates to a String).

isStringClass

public static boolean isStringClass(Class<?> clazz)

nullToUndefined

public static Object nullToUndefined(Object value)

undefinedToNull

public static Object undefinedToNull(Object value)

toJSNull

public static Object toJSNull(Object value)

toJavaNull

public static Object toJavaNull(Object value)

jsObjectToJavaObject

public static Object jsObjectToJavaObject(Object obj)

isPropertyKey

public static boolean isPropertyKey(Object key)

boxIndex

public static Object boxIndex(long longIndex,
                              com.oracle.truffle.api.profiles.ConditionProfile indexInIntRangeConditionProfile)

stringToBigInt

public static BigInt stringToBigInt(String s)

intValue

public static int intValue(Number number)

See Also:: Number.intValue()

intValueVirtual

public static int intValueVirtual(Number number)

doubleValue

public static double doubleValue(Number number)

See Also:: Number.doubleValue()

doubleValue

public static double doubleValue(Number number,
                                 com.oracle.truffle.api.profiles.BranchProfile profile)

doubleValueVirtual

public static double doubleValueVirtual(Number number)

floatValue

public static float floatValue(Number n)

See Also:: Number.floatValue()

floatValueVirtual

public static float floatValueVirtual(Number n)

longValue

public static long longValue(Number n)

See Also:: Number.longValue()

toLong

public static long toLong(Number value)

Convert JS number to long.

stringConcat

public static String stringConcat(String first,
                                  String second)

Concatenate two strings, preallocating the buffer with the exact length of the result.

fromPropertyDescriptor

public static com.oracle.truffle.api.object.DynamicObject fromPropertyDescriptor(PropertyDescriptor desc,
                                                                                 JSContext context)

getArgOrUndefined

public static Object getArgOrUndefined(Object[] args,
                                       int i)

getArg

public static Object getArg(Object[] args,
                            int i,
                            Object defaultValue)

getOffset

public static long getOffset(long start,
                             long length,
                             com.oracle.truffle.api.profiles.ConditionProfile profile)

getOffset

public static int getOffset(int start,
                            int length,
                            com.oracle.truffle.api.profiles.ConditionProfile profile)

parseSafeInteger

public static long parseSafeInteger(String s)

parseSafeInteger

public static long parseSafeInteger(String s,
                                    int beginIndex,
                                    int endIndex,
                                    int radix)

parseRawFitsLong

public static Number parseRawFitsLong(String string,
                                      int radix,
                                      int startPos,
                                      int endPos,
                                      boolean negate)

parseRawDontFitLong

public static double parseRawDontFitLong(String string,
                                         int radix,
                                         int startPos,
                                         int endPos,
                                         boolean negate)

createDataProperty

public static boolean createDataProperty(com.oracle.truffle.api.object.DynamicObject o,
                                         Object p,
                                         Object v)

ES2015, 7.3.4 CreateDataProperty(O, P, V).

createDataProperty

public static boolean createDataProperty(com.oracle.truffle.api.object.DynamicObject o,
                                         Object p,
                                         Object v,
                                         boolean doThrow)

createDataPropertyOrThrow

public static boolean createDataPropertyOrThrow(com.oracle.truffle.api.object.DynamicObject o,
                                                Object p,
                                                Object v)

ES2015, 7.3.6 CreateDataPropertyOrThrow(O, P, V).

definePropertyOrThrow

public static void definePropertyOrThrow(com.oracle.truffle.api.object.DynamicObject o,
                                         Object key,
                                         PropertyDescriptor desc)

ES2016, 7.3.7 DefinePropertyOrThrow(O, P, desc).

isPrototypeOf

public static boolean isPrototypeOf(com.oracle.truffle.api.object.DynamicObject object,
                                    com.oracle.truffle.api.object.DynamicObject prototype)

createArrayFromList

public static com.oracle.truffle.api.object.DynamicObject createArrayFromList(JSContext context,
                                                                              List<? extends Object> list)

ES2016 7.3.16 CreateArrayFromList(elements).

isCallable

public static boolean isCallable(Object value)

ES2015 7.2.3 IsCallable(argument).

isCallableIsJSObject

public static boolean isCallableIsJSObject(com.oracle.truffle.api.object.DynamicObject value)

isCallableForeign

public static boolean isCallableForeign(Object value)

isCallableProxy

public static boolean isCallableProxy(com.oracle.truffle.api.object.DynamicObject proxy)

isRevokedCallableProxy

public static boolean isRevokedCallableProxy(com.oracle.truffle.api.object.DynamicObject revokedProxy)

isArray

public static boolean isArray(Object obj)

ES2015 7.2.2 IsArray(argument).

isProxyAnArray

public static boolean isProxyAnArray(com.oracle.truffle.api.object.DynamicObject proxy)

toPropertyKey

public static Object toPropertyKey(Object arg)

ES2015 7.1.14 ToPropertyKey(argument).

call

public static Object call(Object fnObj,
                          Object holder,
                          Object[] arguments)

ES2015 7.3.12 Call(F, V, arguments).

call

public static Object call(Object fnObj,
                          Object holder,
                          Object[] arguments,
                          com.oracle.truffle.api.nodes.Node encapsulatingNode)

construct

public static Object construct(Object fnObj,
                               Object[] arguments)

canonicalNumericIndexString
```
public static Object canonicalNumericIndexString(String s)
```
ES2015, 7.1.16 CanonicalNumericIndexString().

isInteger

public static boolean isInteger(Object obj)

ES2015, 7.2.6 IsInteger.

mathFloor

public static double mathFloor(double d)

mathCeil

public static double mathCeil(double d)

mathRint

public static double mathRint(double d)

comparePropertyKeys
```
public static int comparePropertyKeys(Object key1,
                                      Object key2)
```
Compare property keys such that a stable sort using it would maintain the following order.
1. integer index keys, in ascending numeric index order
2. string keys, in original insertion order
3. symbols keys, in original insertion order

getConstructorName

public static String getConstructorName(com.oracle.truffle.api.object.DynamicObject receiver)

Carefully try getting the constructor name, must not throw.

getDataProperty

public static Object getDataProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                                     Object key)

isJSRootNode

public static boolean isJSRootNode(com.oracle.truffle.api.nodes.RootNode rootNode)

isJSFunctionRootNode

public static boolean isJSFunctionRootNode(com.oracle.truffle.api.nodes.RootNode rootNode)

isSafeInteger

public static boolean isSafeInteger(double value)

isSafeInteger

public static boolean isSafeInteger(long value)

getFunctionRealm

public static JSRealm getFunctionRealm(Object obj,
                                       JSContext context)

getFunctionRealm

public static JSRealm getFunctionRealm(Object obj,
                                       JSRealm currentRealm)

isConstructor

public static boolean isConstructor(Object constrObj)

ES2016 7.2.4 IsConstructor().

isConstructorForeign

public static boolean isConstructorForeign(Object value)

isConstructorProxy

public static boolean isConstructorProxy(com.oracle.truffle.api.object.DynamicObject constrObj)

isGenerator

public static boolean isGenerator(Object genObj)

isGeneratorProxy

public static boolean isGeneratorProxy(com.oracle.truffle.api.object.DynamicObject genObj)

createListFromArrayLikeAllowSymbolString

public static List<Object> createListFromArrayLikeAllowSymbolString(Object obj)

quote

public static String quote(String value)

expectJSObject

public static com.oracle.truffle.api.object.DynamicObject expectJSObject(Object to,
                                                                         com.oracle.truffle.api.profiles.BranchProfile errorBranch)

exportValue
```
public static Object exportValue(Object value)
```
Convert the value to a type valid in Truffle Interop. Use ExportValueNode where possible.

exportValueArray

public static Object[] exportValueArray(Object[] arr)

importValue
```
public static Object importValue(Object value)
```
Convert the value to a type valid in Graal.js, from something received via TruffleInterop. Use ImportValueNode where possible.

intIsRepresentableAsFloat

public static boolean intIsRepresentableAsFloat(int value)

isJavaPrimitive

public static boolean isJavaPrimitive(Object value)

rethrow

public static <E extends Throwable> RuntimeException rethrow(Throwable ex)
                                                      throws E extends Throwable

Throws:: E extends Throwable

isTypedArrayBigIntFactory

public static boolean isTypedArrayBigIntFactory(TypedArrayFactory factory)

getException

public static GraalJSException getException(Object errorObject)

Class JSRuntime

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

INFINITY_STRING

NEGATIVE_INFINITY_STRING

POSITIVE_INFINITY_STRING

NAN_STRING

TWO32

LINE_SEPARATOR

INVALID_ARRAY_INDEX

MAX_ARRAY_LENGTH

MAX_UINT32_DIGITS

MAX_SAFE_INTEGER

MIN_SAFE_INTEGER

MAX_SAFE_INTEGER_LONG

MIN_SAFE_INTEGER_LONG

INVALID_INTEGER_INDEX

MAX_INTEGER_INDEX_DIGITS

MAX_SAFE_INTEGER_DIGITS

MAX_SAFE_INTEGER_IN_FLOAT

MIN_SAFE_INTEGER_IN_FLOAT

MAX_BIG_INT_EXPONENT

INVALID_SAFE_INTEGER

TO_STRING

VALUE_OF

VALUE

DONE

NEXT

HINT_STRING

HINT_NUMBER

HINT_DEFAULT

PRIMITIVE_VALUE

ITERATED_OBJECT_ID

ITERATOR_NEXT_INDEX

ENUMERATE_ITERATOR_ID

FOR_IN_ITERATOR_ID

FINALIZATION_GROUP_CLEANUP_ITERATOR_ID

ITERATION_KIND_KEY

ITERATION_KIND_VALUE

ITERATION_KIND_KEY_PLUS_VALUE

TO_STRING_MAX_DEPTH

Method Detail

doubleIsRepresentableAsInt

doubleIsRepresentableAsInt

doubleIsRepresentableAsUnsignedInt

isNegativeZero

isPositiveInfinity

doubleToNarrowestNumber

longIsRepresentableAsInt

isRepresentableAsUnsignedInt

doubleIsRepresentableAsLong

positiveLongToIntOrDouble

longToIntOrDouble

isNaN

typeof

isObject

isNullOrUndefined

isNullish

toPrimitive

toPrimitive

toPrimitiveFromForeign

toBoolean

toBoolean

toNumber

toNumeric

toNumberFromPrimitive

booleanToNumber

isNumber

toBigInt

isBigInt

isJavaNumber

stringToNumber

parseDoubleOrNaN

firstExpIndexInString

identifyInfinity

toInteger

toInteger

toLength