com.oracle.graal.python.nodes.util.CastToJavaByteNode Maven / Gradle / Ivy
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package com.oracle.graal.python.nodes.util;
import com.oracle.graal.python.builtins.PythonBuiltinClassType;
import com.oracle.graal.python.builtins.modules.MathGuards;
import com.oracle.graal.python.builtins.objects.ints.PInt;
import com.oracle.graal.python.nodes.ErrorMessages;
import com.oracle.graal.python.nodes.PNodeWithContext;
import com.oracle.graal.python.nodes.PRaiseNode;
import com.oracle.graal.python.util.OverflowException;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Cached.Shared;
import com.oracle.truffle.api.dsl.GenerateCached;
import com.oracle.truffle.api.dsl.GenerateInline;
import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.nodes.Node;
@GenerateUncached
@GenerateInline
@GenerateCached(false)
@ImportStatic(MathGuards.class)
public abstract class CastToJavaByteNode extends PNodeWithContext {
public abstract byte execute(Node inliningTarget, byte x);
public abstract byte execute(Node inliningTarget, int x);
public abstract byte execute(Node inliningTarget, long x);
public abstract byte execute(Node inliningTarget, Object x);
@Specialization
static byte fromByte(byte x) {
return x;
}
@Specialization(rewriteOn = OverflowException.class)
static byte fromInt(int x) throws OverflowException {
return PInt.byteValueExact(x);
}
@Specialization(rewriteOn = OverflowException.class)
static byte fromLong(long x) throws OverflowException {
return PInt.byteValueExact(x);
}
@Specialization(rewriteOn = ArithmeticException.class)
static byte fromPInt(PInt x) {
return x.byteValueExact();
}
@Specialization(replaces = "fromInt")
static byte fromIntErr(Node inliningTarget, int x,
@Shared("raiseNode") @Cached PRaiseNode.Lazy raiseNode) {
try {
return PInt.byteValueExact(x);
} catch (OverflowException e) {
throw raiseNode.get(inliningTarget).raise(PythonBuiltinClassType.ValueError, ErrorMessages.BYTE_MUST_BE_IN_RANGE);
}
}
@Specialization(replaces = "fromLong")
static byte fromLongErr(Node inliningTarget, long x,
@Shared("raiseNode") @Cached PRaiseNode.Lazy raiseNode) {
try {
return PInt.byteValueExact(x);
} catch (OverflowException e) {
throw raiseNode.get(inliningTarget).raise(PythonBuiltinClassType.ValueError, ErrorMessages.BYTE_MUST_BE_IN_RANGE);
}
}
@Specialization(replaces = "fromPInt")
static byte fromPIntErr(Node inliningTarget, PInt x,
@Shared("raiseNode") @Cached PRaiseNode.Lazy raiseNode) {
try {
return x.byteValueExact();
} catch (ArithmeticException e) {
throw raiseNode.get(inliningTarget).raise(PythonBuiltinClassType.ValueError, ErrorMessages.BYTE_MUST_BE_IN_RANGE);
}
}
}
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