com.oracle.truffle.js.nodes

Class JSGuards

java.lang.Object

com.oracle.truffle.js.nodes.JSGuards

public final class JSGuards
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	FALSE false constant for use in DSL.
static boolean	TRUE true constant for use in DSL.

Method Summary

Modifier and Type	Method and Description
static Class<?>	getClassIfJSDynamicObject(Object object)
static Class<?>	getClassIfJSObject(Object object)
static Class<? extends Number>	getJavaNumberClass(Object value)
static JSClass	getJSClassChecked(com.oracle.truffle.api.object.DynamicObject object)
static JSClass	getJSClassIfObject(com.oracle.truffle.api.object.DynamicObject object)
static Class<?>	getNonTruffleObjectClass(Object value)
static boolean	isArgumentsDisconnected(com.oracle.truffle.api.object.DynamicObject argumentsArray)
static boolean	isArrayIndexLengthInRange(String str)
static boolean	isBigInt(Object target)
static boolean	isBigIntNegativeVal(BigInt a)
static boolean	isBigIntZero(BigInt a)
static boolean	isBoolean(Object operand)
static boolean	isBoundJSFunction(Object value)
static boolean	isByteBuffer(Object buffer)
static boolean	isCallable(Object reviver)
static boolean	isCallableProxy(com.oracle.truffle.api.object.DynamicObject proxy)
static boolean	isDoubleInInt32Range(double value)
static boolean	isDoubleLargerThan2e32(double d)
static boolean	isDoubleRepresentableAsLong(double d)
static boolean	isDoubleSafeInteger(double d)
static boolean	isDynamicObject(Object value)
static boolean	isForeignObject(Object value)
static boolean	isIntArrayIndex(int i)
static boolean	isJavaArray(Object value)
static boolean	isJavaLangString(Object value)
static boolean	isJavaNumber(Object operand)
static boolean	isJavaPackage(Object target)
static boolean	isJavaPrimitive(Object value)
static boolean	isJavaPrimitiveNumber(Object value)
static boolean	isJSAdapter(Object object)
static boolean	isJSArgumentsObject(Object value)
static boolean	isJSArray(Object value)
static boolean	isJSArrayBufferView(Object thisObj)
static boolean	isJSBigInt(Object value)
static boolean	isJSBoolean(Object value)
static boolean	isJSCollator(Object value)
static boolean	isJSDate(Object value)
static boolean	isJSDateTimeFormat(Object value)
static boolean	isJSDirectArrayBuffer(Object thisObj)
static boolean	isJSDisplayNames(Object value)
static boolean	isJSDynamicObject(Object value) Like isJSObject, but including Null and Undefined.
static boolean	isJSFastArguments(Object value)
static boolean	isJSFastArray(Object value)
static boolean	isJSFinalizationRegistry(Object value)
static boolean	isJSFunction(Object value)
static boolean	isJSFunctionShape(com.oracle.truffle.api.object.Shape shape)
static boolean	isJSHeapArrayBuffer(Object thisObj)
static boolean	isJSListFormat(Object value)
static boolean	isJSLocale(Object value)
static boolean	isJSMap(Object value)
static boolean	isJSModuleNamespace(Object value)
static boolean	isJSNull(Object value)
static boolean	isJSNumber(Object value)
static boolean	isJSNumberFormat(Object value)
static boolean	isJSNumberInteger(com.oracle.truffle.api.object.DynamicObject thisObj) Guard used to ensure that the parameter is a JSObject containing a JSNumber, that hosts an Integer.
static boolean	isJSObject(Object value) Is this a DynamicObject representing a JavaScript object; this excludes Null and Undefined, and excludes objects from other languages.
static boolean	isJSObjectShape(com.oracle.truffle.api.object.Shape shape)
static boolean	isJSOrdinaryObject(Object value)
static boolean	isJSPluralRules(Object value)
static boolean	isJSProxy(Object value)
static boolean	isJSRegExp(Object value)
static boolean	isJSRelativeTimeFormat(Object value)
static boolean	isJSSegmenter(Object value)
static boolean	isJSSet(Object value)
static boolean	isJSSharedArrayBuffer(Object thisObj)
static boolean	isJSString(Object value)
static boolean	isJSSymbol(Object value)
static boolean	isJSWeakMap(Object value)
static boolean	isJSWeakRef(Object value)
static boolean	isJSWeakSet(Object value)
static boolean	isList(Object value)
static boolean	isLongArrayIndex(long i)
static boolean	isLongRepresentableAsInt32(long value)
static boolean	isNullOrUndefined(Object value)
static boolean	isNumber(Object operand)
static boolean	isNumberDouble(Object operand)
static boolean	isNumberInteger(Object operand)
static boolean	isNumberLong(Object operand)
static boolean	isReferenceEquals(Object a, Object b)
static boolean	isString(Object operand)
static boolean	isSymbol(Object operand)
static boolean	isTruffleObject(Object value)
static boolean	isUndefined(Object value)
static boolean	isValidPrototype(Object prototype)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FALSE

public static final boolean FALSE

false constant for use in DSL.

See Also:

Constant Field Values

TRUE

public static final boolean TRUE

true constant for use in DSL.

See Also:

Constant Field Values

Method Detail

isJSObject

public static boolean isJSObject(Object value)

Is this a DynamicObject representing a JavaScript object; this excludes Null and Undefined, and excludes objects from other languages.

isJSDynamicObject

public static boolean isJSDynamicObject(Object value)

Like isJSObject, but including Null and Undefined.

isTruffleObject

public static boolean isTruffleObject(Object value)

isJavaLangString

public static boolean isJavaLangString(Object value)

isForeignObject

public static boolean isForeignObject(Object value)

isUndefined

public static boolean isUndefined(Object value)

isJSNull

public static boolean isJSNull(Object value)

isDynamicObject

public static boolean isDynamicObject(Object value)

isJSFunction

public static boolean isJSFunction(Object value)

isJSFunctionShape

public static boolean isJSFunctionShape(com.oracle.truffle.api.object.Shape shape)

isBoundJSFunction

public static boolean isBoundJSFunction(Object value)

isCallable

public static boolean isCallable(Object reviver)

isCallableProxy

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

isJSString

public static boolean isJSString(Object value)

isJSNumber

public static boolean isJSNumber(Object value)

isJSBigInt

public static boolean isJSBigInt(Object value)

isJSBoolean

public static boolean isJSBoolean(Object value)

isJSDate

public static boolean isJSDate(Object value)

isJSArray

public static boolean isJSArray(Object value)

isJSArgumentsObject

public static boolean isJSArgumentsObject(Object value)

isJSRegExp

public static boolean isJSRegExp(Object value)

isJSOrdinaryObject

public static boolean isJSOrdinaryObject(Object value)

isJSDateTimeFormat

public static boolean isJSDateTimeFormat(Object value)

isJSCollator

public static boolean isJSCollator(Object value)

isJSListFormat

public static boolean isJSListFormat(Object value)

isJSNumberFormat

public static boolean isJSNumberFormat(Object value)

isJSPluralRules

public static boolean isJSPluralRules(Object value)

isJSRelativeTimeFormat

public static boolean isJSRelativeTimeFormat(Object value)

isJSSegmenter

public static boolean isJSSegmenter(Object value)

isJSDisplayNames

public static boolean isJSDisplayNames(Object value)

isJSLocale

public static boolean isJSLocale(Object value)

isNumber

public static boolean isNumber(Object operand)

isJavaNumber

public static boolean isJavaNumber(Object operand)

isNumberInteger

public static boolean isNumberInteger(Object operand)

isNumberLong

public static boolean isNumberLong(Object operand)

isNumberDouble

public static boolean isNumberDouble(Object operand)

isJSNumberInteger

public static boolean isJSNumberInteger(com.oracle.truffle.api.object.DynamicObject thisObj)

Guard used to ensure that the parameter is a JSObject containing a JSNumber, that hosts an Integer.

isString

public static boolean isString(Object operand)

isBoolean

public static boolean isBoolean(Object operand)

isSymbol

public static boolean isSymbol(Object operand)

isJSHeapArrayBuffer

public static boolean isJSHeapArrayBuffer(Object thisObj)

isJSDirectArrayBuffer

public static boolean isJSDirectArrayBuffer(Object thisObj)

isJSSharedArrayBuffer

public static boolean isJSSharedArrayBuffer(Object thisObj)

isJSArrayBufferView

public static boolean isJSArrayBufferView(Object thisObj)

isJSFastArray

public static boolean isJSFastArray(Object value)

isJSProxy

public static boolean isJSProxy(Object value)

isJSFastArguments

public static boolean isJSFastArguments(Object value)

isJSSymbol

public static boolean isJSSymbol(Object value)

isJSMap

public static boolean isJSMap(Object value)

isJSSet

public static boolean isJSSet(Object value)

isJSWeakRef

public static boolean isJSWeakRef(Object value)

isJSFinalizationRegistry

public static boolean isJSFinalizationRegistry(Object value)

isJSWeakMap

public static boolean isJSWeakMap(Object value)

isJSWeakSet

public static boolean isJSWeakSet(Object value)

isJSModuleNamespace

public static boolean isJSModuleNamespace(Object value)

isJSAdapter

public static boolean isJSAdapter(Object object)

isValidPrototype

public static boolean isValidPrototype(Object prototype)

isByteBuffer

public static boolean isByteBuffer(Object buffer)

isList

public static boolean isList(Object value)

isJavaPackage

public static boolean isJavaPackage(Object target)

isJavaArray

public static boolean isJavaArray(Object value)

isBigInt

public static boolean isBigInt(Object target)

isBigIntZero

public static boolean isBigIntZero(BigInt a)

isBigIntNegativeVal

public static boolean isBigIntNegativeVal(BigInt a)

isDoubleInInt32Range

public static boolean isDoubleInInt32Range(double value)

isDoubleLargerThan2e32

public static boolean isDoubleLargerThan2e32(double d)

isLongRepresentableAsInt32

public static boolean isLongRepresentableAsInt32(long value)

isDoubleRepresentableAsLong

public static boolean isDoubleRepresentableAsLong(double d)

isDoubleSafeInteger

public static boolean isDoubleSafeInteger(double d)

isIntArrayIndex

public static boolean isIntArrayIndex(int i)

isLongArrayIndex

public static boolean isLongArrayIndex(long i)

isArgumentsDisconnected

public static boolean isArgumentsDisconnected(com.oracle.truffle.api.object.DynamicObject argumentsArray)

getJavaNumberClass

public static Class<? extends Number> getJavaNumberClass(Object value)

getNonTruffleObjectClass

public static Class<?> getNonTruffleObjectClass(Object value)

getJSClassChecked

public static JSClass getJSClassChecked(com.oracle.truffle.api.object.DynamicObject object)

getJSClassIfObject

public static JSClass getJSClassIfObject(com.oracle.truffle.api.object.DynamicObject object)

getClassIfJSObject

public static Class<?> getClassIfJSObject(Object object)

getClassIfJSDynamicObject

public static Class<?> getClassIfJSDynamicObject(Object object)

isReferenceEquals

public static boolean isReferenceEquals(Object a,
                                        Object b)

isJavaPrimitive

public static boolean isJavaPrimitive(Object value)

isJavaPrimitiveNumber

public static boolean isJavaPrimitiveNumber(Object value)

isNullOrUndefined

public static boolean isNullOrUndefined(Object value)

isJSObjectShape

public static boolean isJSObjectShape(com.oracle.truffle.api.object.Shape shape)

isArrayIndexLengthInRange

public static boolean isArrayIndexLengthInRange(String str)