diff --git a/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/utils/Download.java b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/utils/Download.java
index 722b28dacb17e478dd15c06ff250284630549682..56e3f6ea7ab67244176fbda05380a6a9fd94a581 100644
--- a/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/utils/Download.java
+++ b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/utils/Download.java
@@ -22,55 +22,51 @@
*/
package com.oracle.truffle.r.library.utils;
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.FileOutputStream;
+import static com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef.notEmpty;
+import static com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef.singleElement;
+import static com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef.stringValue;
+import static com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef.toBoolean;
+
import java.io.IOException;
+import java.io.InputStream;
import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
-import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
+import com.oracle.truffle.api.dsl.Specialization;
+import com.oracle.truffle.r.nodes.builtin.CastBuilder;
+import com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef;
import com.oracle.truffle.r.nodes.builtin.RExternalBuiltinNode;
import com.oracle.truffle.r.runtime.RError;
-import com.oracle.truffle.r.runtime.RRuntime;
-import com.oracle.truffle.r.runtime.data.RArgsValuesAndNames;
+import com.oracle.truffle.r.runtime.RError.Message;
/**
* Support for the "internal"method of "utils::download.file". TODO take note of "quiet", "mode" and
* "cacheOK".
*/
-public final class Download extends RExternalBuiltinNode {
+public abstract class Download extends RExternalBuiltinNode.Arg5 {
+
+ @Override
+ protected void createCasts(CastBuilder casts) {
+ casts.arg(0).mustNotBeNull().mustBe(stringValue()).asStringVector().mustBe(notEmpty()).shouldBe(singleElement(), Message.ONLY_FIRST_USED).findFirst();
+ casts.arg(1).mustNotBeNull().mustBe(stringValue()).asStringVector().mustBe(notEmpty()).shouldBe(singleElement(), Message.ONLY_FIRST_USED).findFirst();
+ casts.arg(2).mustNotBeNull().mustBe(Predef.logicalValue()).asLogicalVector().mustBe(notEmpty()).shouldBe(singleElement(), Message.ONLY_FIRST_USED).findFirst().map(toBoolean());
+ casts.arg(3).mustNotBeNull().mustBe(stringValue()).asStringVector().mustBe(notEmpty()).shouldBe(singleElement(), Message.ONLY_FIRST_USED).findFirst();
+ casts.arg(4).mustNotBeNull().mustBe(Predef.logicalValue()).asLogicalVector().mustBe(notEmpty()).shouldBe(singleElement(), Message.ONLY_FIRST_USED).findFirst().map(toBoolean());
- @SuppressWarnings("unused")
- private static void download(String urlString, String destFile, boolean quiet, String mode, boolean cacheOK) throws IOException {
- URL url = new URL(urlString);
- byte[] buffer = new byte[8192];
- try (BufferedInputStream in = new BufferedInputStream(url.openStream()); BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(destFile))) {
- int nread;
- while ((nread = in.read(buffer)) > 0) {
- out.write(buffer, 0, nread);
- }
- }
}
- @Override
- @TruffleBoundary
- public Integer call(RArgsValuesAndNames args) {
- Object[] argValues = args.getArguments();
- String url = isString(argValues[0]);
- String destFile = isString(argValues[1]);
- byte quiet = castLogical(castVector(argValues[2]));
- String mode = isString(argValues[3]);
- byte cacheOK = castLogical(castVector(argValues[4]));
- if (url == null || destFile == null || mode == null) {
- errorProfile.enter();
- throw RError.error(this, RError.Message.INVALID_UNNAMED_ARGUMENTS);
- }
+ @Specialization
+ protected int download(String urlString, String destFile, @SuppressWarnings("unused") boolean quiet, @SuppressWarnings("unused") String mode, @SuppressWarnings("unused") boolean cacheOK) {
try {
- Download.download(url, destFile, RRuntime.fromLogical(quiet), mode, RRuntime.fromLogical(cacheOK));
+ try (InputStream in = new URL(urlString).openStream()) {
+ Files.copy(in, Paths.get(destFile), StandardCopyOption.REPLACE_EXISTING);
+ }
return 0;
- } catch (IOException ex) {
+ } catch (IOException e) {
errorProfile.enter();
- throw RError.error(this, RError.Message.GENERIC, ex.getMessage());
+ throw RError.error(this, RError.Message.GENERIC, e.getMessage());
}
}
}
diff --git a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/Fft.java b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/Fft.java
index c21a68dff92002ed458483a2e6f1bd213a71b212..c15e41e81848edfec4ae9ad06f1ebbac9a6a7850 100644
--- a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/Fft.java
+++ b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/Fft.java
@@ -11,28 +11,32 @@
*/
package com.oracle.truffle.r.nodes.builtin.base.foreign;
+import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.profiles.ConditionProfile;
+import com.oracle.truffle.r.nodes.builtin.CastBuilder;
+import com.oracle.truffle.r.nodes.builtin.CastBuilder.Predef;
import com.oracle.truffle.r.nodes.builtin.RExternalBuiltinNode;
import com.oracle.truffle.r.runtime.RError;
-import com.oracle.truffle.r.runtime.RRuntime;
-import com.oracle.truffle.r.runtime.data.RArgsValuesAndNames;
-import com.oracle.truffle.r.runtime.data.RComplexVector;
import com.oracle.truffle.r.runtime.data.RDataFactory;
+import com.oracle.truffle.r.runtime.data.model.RAbstractComplexVector;
import com.oracle.truffle.r.runtime.ffi.RFFIFactory;
-public final class Fft extends RExternalBuiltinNode {
+public abstract class Fft extends RExternalBuiltinNode.Arg2 {
private final ConditionProfile zVecLgt1 = ConditionProfile.createBinaryProfile();
private final ConditionProfile noDims = ConditionProfile.createBinaryProfile();
- // TODO: handle more argument types (this is sufficient to run the b25 benchmarks)
@Override
- public RComplexVector call(RArgsValuesAndNames args) {
- Object[] argValues = args.getArguments();
- RComplexVector zVec = castComplexVector(castVector(argValues[0]));
- double[] z = zVec.getDataTemp();
- byte inverse = castLogical(castVector(argValues[1]));
- int inv = RRuntime.isNA(inverse) || inverse == RRuntime.LOGICAL_FALSE ? -2 : 2;
+ protected void createCasts(CastBuilder casts) {
+ casts.arg(0).mustNotBeNull().asComplexVector(false, true, false);
+ casts.arg(1).mustNotBeNull().asLogicalVector().findFirst().map(Predef.toBoolean());
+ }
+
+ // TODO: handle more argument types (this is sufficient to run the b25 benchmarks)
+ @Specialization
+ public Object execute(RAbstractComplexVector zVec, boolean inverse) {
+ double[] z = zVec.materialize().getDataTemp();
+ int inv = inverse ? 2 : -2;
@SuppressWarnings("unused")
int retCode = 7;
if (zVecLgt1.profile(zVec.getLength() > 1)) {
@@ -83,10 +87,8 @@ public final class Fft extends RExternalBuiltinNode {
RFFIFactory.getRFFI().getStatsRFFI().fft_work(z, nseg, n, nspn, inv, work, iwork);
}
}
-
}
}
-
return RDataFactory.createComplexVector(z, zVec.isComplete(), zVec.getDimensions());
}
}
diff --git a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
index 17e80124f170c7340513e15007e815296906f3d0..24c3e23bd4335004ef30be42e6ecbf572e6e52da 100644
--- a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
+++ b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
@@ -64,7 +64,7 @@ import com.oracle.truffle.r.library.tools.ToolsTextFactory.CodeFilesAppendNodeGe
import com.oracle.truffle.r.library.tools.ToolsTextFactory.DoTabExpandNodeGen;
import com.oracle.truffle.r.library.utils.CountFields;
import com.oracle.truffle.r.library.utils.Crc64NodeGen;
-import com.oracle.truffle.r.library.utils.Download;
+import com.oracle.truffle.r.library.utils.DownloadNodeGen;
import com.oracle.truffle.r.library.utils.MenuNodeGen;
import com.oracle.truffle.r.library.utils.ObjectSizeNodeGen;
import com.oracle.truffle.r.library.utils.RprofNodeGen;
@@ -343,7 +343,7 @@ public class ForeignFunctions {
// stats
case "fft":
- return new Fft();
+ return FftNodeGen.create();
case "cov":
return new Covcor(false);
case "cor":
@@ -583,7 +583,7 @@ public class ForeignFunctions {
case "readtablehead":
return new ReadTableHead();
case "download":
- return new Download();
+ return DownloadNodeGen.create();
case "termsform":
return getExternalModelBuiltinNode("termsform");
case "Rprof":
diff --git a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/RExternalBuiltinNode.java b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/RExternalBuiltinNode.java
index 35a7a115fdba2156732aa2c70f394fbc151f9378..2b27980e31203978e15b7d3d61e985b3d0ebbca3 100644
--- a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/RExternalBuiltinNode.java
+++ b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/RExternalBuiltinNode.java
@@ -27,7 +27,6 @@ import com.oracle.truffle.api.dsl.TypeSystemReference;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.profiles.BranchProfile;
import com.oracle.truffle.r.nodes.unary.CastComplexNode;
-import com.oracle.truffle.r.nodes.unary.CastComplexNodeGen;
import com.oracle.truffle.r.nodes.unary.CastDoubleNode;
import com.oracle.truffle.r.nodes.unary.CastDoubleNodeGen;
import com.oracle.truffle.r.nodes.unary.CastIntegerNode;
@@ -40,7 +39,6 @@ import com.oracle.truffle.r.nodes.unary.CastToVectorNodeGen;
import com.oracle.truffle.r.runtime.RInternalError;
import com.oracle.truffle.r.runtime.data.RArgsValuesAndNames;
import com.oracle.truffle.r.runtime.data.RAttributeProfiles;
-import com.oracle.truffle.r.runtime.data.RComplexVector;
import com.oracle.truffle.r.runtime.data.RTypes;
import com.oracle.truffle.r.runtime.data.model.RAbstractDoubleVector;
import com.oracle.truffle.r.runtime.data.model.RAbstractIntVector;
@@ -107,14 +105,6 @@ public abstract class RExternalBuiltinNode extends RBaseNode {
return (RAbstractDoubleVector) castDouble.execute(operand);
}
- protected RComplexVector castComplexVector(Object operand) {
- if (castComplex == null) {
- CompilerDirectives.transferToInterpreterAndInvalidate();
- castComplex = insert(CastComplexNodeGen.create(true, true, false));
- }
- return (RComplexVector) castComplex.execute(operand);
- }
-
protected RAbstractVector castVector(Object value) {
if (castVector == null) {
CompilerDirectives.transferToInterpreterAndInvalidate();
diff --git a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/InitialPhaseBuilder.java b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/InitialPhaseBuilder.java
index bec9e0943e38390c5ec2f598f6edd3255ecc0949..7f6d3923f831bd495ec9be66d0acbc55933de585 100644
--- a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/InitialPhaseBuilder.java
+++ b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/InitialPhaseBuilder.java
@@ -27,6 +27,7 @@ import com.oracle.truffle.r.nodes.builtin.casts.Filter;
import com.oracle.truffle.r.nodes.builtin.casts.Mapper;
import com.oracle.truffle.r.nodes.builtin.casts.PipelineStep;
import com.oracle.truffle.r.runtime.RError;
+import com.oracle.truffle.r.runtime.RType;
import com.oracle.truffle.r.runtime.data.RAttributable;
import com.oracle.truffle.r.runtime.data.RComplex;
import com.oracle.truffle.r.runtime.data.RRaw;
@@ -147,8 +148,8 @@ public class InitialPhaseBuilder<T> extends ArgCastBuilder<T, InitialPhaseBuilde
return this;
}
- public CoercedPhaseBuilder<RAbstractIntVector, Integer> asIntegerVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- pipelineBuilder().appendAsIntegerVector(preserveNames, dimensionsPreservation, attrPreservation);
+ public CoercedPhaseBuilder<RAbstractIntVector, Integer> asIntegerVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Integer, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), Integer.class);
}
@@ -156,8 +157,8 @@ public class InitialPhaseBuilder<T> extends ArgCastBuilder<T, InitialPhaseBuilde
return asIntegerVector(false, false, false);
}
- public CoercedPhaseBuilder<RAbstractDoubleVector, Double> asDoubleVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- pipelineBuilder().appendAsDoubleVector(preserveNames, dimensionsPreservation, attrPreservation);
+ public CoercedPhaseBuilder<RAbstractDoubleVector, Double> asDoubleVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Double, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), Double.class);
}
@@ -165,8 +166,8 @@ public class InitialPhaseBuilder<T> extends ArgCastBuilder<T, InitialPhaseBuilde
return asDoubleVector(false, false, false);
}
- public CoercedPhaseBuilder<RAbstractDoubleVector, Byte> asLogicalVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- pipelineBuilder().appendAsLogicalVector(preserveNames, dimensionsPreservation, attrPreservation);
+ public CoercedPhaseBuilder<RAbstractDoubleVector, Byte> asLogicalVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Logical, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), Byte.class);
}
@@ -174,28 +175,35 @@ public class InitialPhaseBuilder<T> extends ArgCastBuilder<T, InitialPhaseBuilde
return asLogicalVector(false, false, false);
}
- public CoercedPhaseBuilder<RAbstractStringVector, String> asStringVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- pipelineBuilder().appendAsStringVector(preserveNames, dimensionsPreservation, attrPreservation);
+ public CoercedPhaseBuilder<RAbstractStringVector, String> asStringVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Character, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), String.class);
}
public CoercedPhaseBuilder<RAbstractStringVector, String> asStringVector() {
- pipelineBuilder().appendAsStringVector();
- return new CoercedPhaseBuilder<>(pipelineBuilder(), String.class);
+ return asStringVector(false, false, false);
}
- public CoercedPhaseBuilder<RAbstractComplexVector, RComplex> asComplexVector() {
- pipelineBuilder().appendAsComplexVector();
+ public CoercedPhaseBuilder<RAbstractComplexVector, RComplex> asComplexVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Complex, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), RComplex.class);
}
- public CoercedPhaseBuilder<RAbstractRawVector, RRaw> asRawVector() {
- pipelineBuilder().appendAsRawVector();
+ public CoercedPhaseBuilder<RAbstractComplexVector, RComplex> asComplexVector() {
+ return asComplexVector(false, false, false);
+ }
+
+ public CoercedPhaseBuilder<RAbstractRawVector, RRaw> asRawVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsVector(RType.Raw, preserveNames, preserveDimensions, preserveAttributes);
return new CoercedPhaseBuilder<>(pipelineBuilder(), RRaw.class);
}
+ public CoercedPhaseBuilder<RAbstractRawVector, RRaw> asRawVector() {
+ return asRawVector(false, false, false);
+ }
+
public CoercedPhaseBuilder<RAbstractVector, Object> asVector() {
- pipelineBuilder().appendAsVector();
+ pipelineBuilder().appendAsVector(false, false, false, true);
return new CoercedPhaseBuilder<>(pipelineBuilder(), Object.class);
}
@@ -209,8 +217,8 @@ public class InitialPhaseBuilder<T> extends ArgCastBuilder<T, InitialPhaseBuilde
return new CoercedPhaseBuilder<>(pipelineBuilder(), Object.class);
}
- public HeadPhaseBuilder<RAttributable> asAttributable(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- pipelineBuilder().appendAsAttributable(preserveNames, dimensionsPreservation, attrPreservation);
+ public HeadPhaseBuilder<RAttributable> asAttributable(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ pipelineBuilder().appendAsAttributable(preserveNames, preserveDimensions, preserveAttributes);
return new HeadPhaseBuilder<>(pipelineBuilder());
}
diff --git a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/PipelineBuilder.java b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/PipelineBuilder.java
index d94cda9d6252bd54f651fa854de6e91ea3be13ad..f2dee59fd83941231c746f099fde11090ce8d07e 100644
--- a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/PipelineBuilder.java
+++ b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/builtin/casts/fluent/PipelineBuilder.java
@@ -78,44 +78,17 @@ public final class PipelineBuilder {
append(new FindFirstStep<>(defaultValue, elementClass, createMessage(callObj, message, messageArgs)));
}
- public void appendAsAttributable(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- append(new AttributableCoercionStep<>(preserveNames, dimensionsPreservation, attrPreservation));
+ public void appendAsAttributable(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ append(new AttributableCoercionStep<>(preserveNames, preserveDimensions, preserveAttributes));
}
public void appendAsVector(boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes, boolean preserveNonVector) {
append(new CoercionStep<>(RType.Any, true, preserveNames, preserveDimensions, preserveAttributes, preserveNonVector));
}
- public void appendAsVector() {
- appendAsVector(false, false, false, true);
- }
-
- public void appendAsRawVector() {
- append(new CoercionStep<>(RType.Raw, true, false, false, false));
- }
-
- public void appendAsComplexVector() {
- append(new CoercionStep<>(RType.Complex, true, false, false, false));
- }
-
- public void appendAsStringVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- append(new CoercionStep<>(RType.Character, true, preserveNames, dimensionsPreservation, attrPreservation));
- }
-
- public void appendAsStringVector() {
- append(new CoercionStep<>(RType.Character, true, false, false, false));
- }
-
- public void appendAsLogicalVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- append(new CoercionStep<>(RType.Logical, true, preserveNames, dimensionsPreservation, attrPreservation));
- }
-
- public void appendAsDoubleVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- append(new CoercionStep<>(RType.Double, true, preserveNames, dimensionsPreservation, attrPreservation));
- }
-
- public void appendAsIntegerVector(boolean preserveNames, boolean dimensionsPreservation, boolean attrPreservation) {
- append(new CoercionStep<>(RType.Integer, true, preserveNames, dimensionsPreservation, attrPreservation));
+ public void appendAsVector(RType type, boolean preserveNames, boolean preserveDimensions, boolean preserveAttributes) {
+ assert type == RType.Integer || type == RType.Double || type == RType.Complex || type == RType.Character || type == RType.Logical || type == RType.Raw;
+ append(new CoercionStep<>(type, true, preserveNames, preserveDimensions, preserveAttributes));
}
public void appendNotNA(Object naReplacement, RBaseNode callObj, Message message, Object[] messageArgs) {
diff --git a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RError.java b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RError.java
index e065ee7ee029f40cad33eb76f369a8b8f9530630..dfb8e2e97b1d12f58330500058dfd69e5e064b27 100644
--- a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RError.java
+++ b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RError.java
@@ -745,7 +745,8 @@ public final class RError extends RuntimeException {
APPLIES_TO_VECTORS("%s applies only to vectors"),
GAP_MUST_BE_NON_NEGATIVE("'gap' must be non-negative integer"),
WRONG_PCRE_INFO("'pcre_fullinfo' returned '%d' "),
- BAD_FUNCTION_EXPR("badly formed function expression");
+ BAD_FUNCTION_EXPR("badly formed function expression"),
+ FIRST_ELEMENT_ONLY("only first element of '%s' argument used");
public final String message;
final boolean hasArgs;