com.oracle.graal.python.nodes.attributes.ReadAttributeFromDynamicObjectNode Maven / Gradle / Ivy
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package com.oracle.graal.python.nodes.attributes;
import com.oracle.graal.python.builtins.objects.PNone;
import com.oracle.graal.python.builtins.objects.module.PythonModule;
import com.oracle.graal.python.builtins.objects.type.PythonManagedClass;
import com.oracle.graal.python.nodes.PGuards;
import com.oracle.graal.python.nodes.util.CastToTruffleStringNode;
import com.oracle.graal.python.runtime.PythonOptions;
import com.oracle.truffle.api.Assumption;
import com.oracle.truffle.api.dsl.Bind;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.GenerateInline;
import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.Idempotent;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.NeverDefault;
import com.oracle.truffle.api.dsl.NonIdempotent;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.api.object.DynamicObjectLibrary;
import com.oracle.truffle.api.object.HiddenKey;
import com.oracle.truffle.api.object.Location;
import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.api.strings.TruffleString;
@ImportStatic({PGuards.class, PythonOptions.class})
@GenerateUncached
@GenerateInline(false) // footprint reduction 44 -> 25
public abstract class ReadAttributeFromDynamicObjectNode extends ObjectAttributeNode {
@NeverDefault
public static ReadAttributeFromDynamicObjectNode create() {
return ReadAttributeFromDynamicObjectNodeGen.create();
}
public static ReadAttributeFromDynamicObjectNode getUncached() {
return ReadAttributeFromDynamicObjectNodeGen.getUncached();
}
public abstract Object execute(Object object, Object key);
public abstract Object execute(Object object, TruffleString key);
public abstract Object execute(Object object, HiddenKey key);
protected static Object getAttribute(DynamicObject object, TruffleString key) {
return DynamicObjectLibrary.getUncached().getOrDefault(object, key, PNone.NO_VALUE);
}
@Idempotent
protected static boolean isLongLivedObject(DynamicObject object) {
return object instanceof PythonModule || object instanceof PythonManagedClass;
}
@Idempotent
protected static boolean isPrimitive(Object value) {
return value instanceof Integer || value instanceof Long || value instanceof Boolean || value instanceof Double;
}
@NonIdempotent
protected static boolean locationIsAssumedFinal(Location loc) {
return loc != null && loc.isAssumedFinal();
}
@SuppressWarnings("unused")
@Specialization(limit = "1", //
guards = {
"isSingleContext()",
"dynamicObject == cachedObject",
"isLongLivedObject(cachedObject)",
"key == cachedKey",
"dynamicObject.getShape() == cachedShape",
"locationIsAssumedFinal(loc)",
"!isPrimitive(value)"
}, //
assumptions = {"cachedShape.getValidAssumption()", "loc.getFinalAssumption()"})
protected static Object readFinalAttr(DynamicObject dynamicObject, TruffleString key,
@Cached("key") TruffleString cachedKey,
@Cached(value = "dynamicObject", weak = true) DynamicObject cachedObject,
@Cached("dynamicObject.getShape()") Shape cachedShape,
@Cached("getLocationOrNull(cachedShape.getProperty(cachedKey))") Location loc,
@Cached("dynamicObject.getShape().getPropertyAssumption(key)") Assumption propertyAssumption,
@Cached(value = "getAttribute(dynamicObject, key)", weak = true) Object value) {
return value;
}
@SuppressWarnings("unused")
@Specialization(limit = "1", //
guards = {
"isSingleContext()",
"dynamicObject == cachedObject",
"isLongLivedObject(cachedObject)",
"key == cachedKey",
"dynamicObject.getShape() == cachedShape",
"locationIsAssumedFinal(loc)",
"isPrimitive(value)"
}, //
assumptions = {"cachedShape.getValidAssumption()", "loc.getFinalAssumption()"})
protected static Object readFinalPrimitiveAttr(DynamicObject dynamicObject, TruffleString key,
@Cached("key") TruffleString cachedKey,
@Cached(value = "dynamicObject", weak = true) DynamicObject cachedObject,
@Cached("dynamicObject.getShape()") Shape cachedShape,
@Cached("getLocationOrNull(cachedShape.getProperty(cachedKey))") Location loc,
@Cached("dynamicObject.getShape().getPropertyAssumption(key)") Assumption propertyAssumption,
@Cached(value = "getAttribute(dynamicObject, key)") Object value) {
return value;
}
@Specialization(limit = "getAttributeAccessInlineCacheMaxDepth()", replaces = {"readFinalAttr", "readFinalPrimitiveAttr"})
protected static Object readDirect(DynamicObject dynamicObject, TruffleString key,
@CachedLibrary("dynamicObject") DynamicObjectLibrary dylib) {
return dylib.getOrDefault(dynamicObject, key, PNone.NO_VALUE);
}
@Specialization(guards = "isHiddenKey(key)", limit = "getAttributeAccessInlineCacheMaxDepth()")
protected static Object readDirectHidden(DynamicObject dynamicObject, Object key,
@CachedLibrary("dynamicObject") DynamicObjectLibrary dylib) {
return dylib.getOrDefault(dynamicObject, key, PNone.NO_VALUE);
}
@Specialization(guards = "!isHiddenKey(key)", replaces = {"readDirect", "readFinalAttr"}, limit = "getAttributeAccessInlineCacheMaxDepth()")
protected static Object read(DynamicObject dynamicObject, Object key,
@Bind("this") Node inliningTarget,
@Cached CastToTruffleStringNode castNode,
@CachedLibrary("dynamicObject") DynamicObjectLibrary dylib) {
return dylib.getOrDefault(dynamicObject, attrKey(inliningTarget, key, castNode), PNone.NO_VALUE);
}
}
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