diff options
Diffstat (limited to 'src/jdk/nashorn/internal/codegen/SpillObjectCreator.java')
| -rw-r--r-- | src/jdk/nashorn/internal/codegen/SpillObjectCreator.java | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/src/jdk/nashorn/internal/codegen/SpillObjectCreator.java b/src/jdk/nashorn/internal/codegen/SpillObjectCreator.java deleted file mode 100644 index 22dc72ed..00000000 --- a/src/jdk/nashorn/internal/codegen/SpillObjectCreator.java +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright (c) 2010-2013, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package jdk.nashorn.internal.codegen; - -import static jdk.nashorn.internal.codegen.CompilerConstants.constructorNoLookup; -import static jdk.nashorn.internal.codegen.CompilerConstants.virtualCallNoLookup; - -import java.util.LinkedHashSet; -import java.util.List; -import java.util.Set; -import jdk.nashorn.internal.codegen.types.Type; -import jdk.nashorn.internal.ir.Expression; -import jdk.nashorn.internal.ir.LiteralNode; -import jdk.nashorn.internal.runtime.JSType; -import jdk.nashorn.internal.runtime.Property; -import jdk.nashorn.internal.runtime.PropertyMap; -import jdk.nashorn.internal.runtime.ScriptObject; -import jdk.nashorn.internal.runtime.ScriptRuntime; -import jdk.nashorn.internal.runtime.arrays.ArrayData; -import jdk.nashorn.internal.runtime.arrays.ArrayIndex; -import jdk.nashorn.internal.scripts.JD; -import jdk.nashorn.internal.scripts.JO; - -/** - * An object creator that uses spill properties. - */ -public final class SpillObjectCreator extends ObjectCreator<Expression> { - - /** - * Constructor - * - * @param codegen code generator - * @param tuples tuples for key, symbol, value - */ - SpillObjectCreator(final CodeGenerator codegen, final List<MapTuple<Expression>> tuples) { - super(codegen, tuples, false, false); - makeMap(); - } - - @Override - public void createObject(final MethodEmitter method) { - assert !isScope() : "spill scope objects are not currently supported"; - - final int length = tuples.size(); - final boolean dualFields = codegen.useDualFields(); - final int spillLength = ScriptObject.spillAllocationLength(length); - final long[] jpresetValues = dualFields ? new long[spillLength] : null; - final Object[] opresetValues = new Object[spillLength]; - final Class<?> objectClass = getAllocatorClass(); - ArrayData arrayData = ArrayData.allocate(ScriptRuntime.EMPTY_ARRAY); - - // Compute constant property values - int pos = 0; - for (final MapTuple<Expression> tuple : tuples) { - final String key = tuple.key; - final Expression value = tuple.value; - - //this is a nop of tuple.key isn't e.g. "apply" or another special name - method.invalidateSpecialName(tuple.key); - - if (value != null) { - final Object constantValue = LiteralNode.objectAsConstant(value); - if (constantValue != LiteralNode.POSTSET_MARKER) { - final Property property = propertyMap.findProperty(key); - if (property != null) { - // normal property key - property.setType(dualFields ? JSType.unboxedFieldType(constantValue) : Object.class); - final int slot = property.getSlot(); - if (dualFields && constantValue instanceof Number) { - jpresetValues[slot] = ObjectClassGenerator.pack((Number)constantValue); - } else { - opresetValues[slot] = constantValue; - } - } else { - // array index key - final long oldLength = arrayData.length(); - final int index = ArrayIndex.getArrayIndex(key); - final long longIndex = ArrayIndex.toLongIndex(index); - - assert ArrayIndex.isValidArrayIndex(index); - - if (longIndex >= oldLength) { - arrayData = arrayData.ensure(longIndex); - } - - //avoid blowing up the array if we can - if (constantValue instanceof Integer) { - arrayData = arrayData.set(index, ((Integer)constantValue).intValue(), false); - } else if (constantValue instanceof Double) { - arrayData = arrayData.set(index, ((Double)constantValue).doubleValue(), false); - } else { - arrayData = arrayData.set(index, constantValue, false); - } - - if (longIndex > oldLength) { - arrayData = arrayData.delete(oldLength, longIndex - 1); - } - } - } - } - pos++; - } - - // create object and invoke constructor - method._new(objectClass).dup(); - codegen.loadConstant(propertyMap); - - // load primitive value spill array - if (dualFields) { - codegen.loadConstant(jpresetValues); - } else { - method.loadNull(); - } - // load object value spill array - codegen.loadConstant(opresetValues); - - // instantiate the script object with spill objects - method.invoke(constructorNoLookup(objectClass, PropertyMap.class, long[].class, Object[].class)); - - // Set prefix array data if any - if (arrayData.length() > 0) { - method.dup(); - codegen.loadConstant(arrayData); - method.invoke(virtualCallNoLookup(ScriptObject.class, "setArray", void.class, ArrayData.class)); - } - } - - @Override - public void populateRange(final MethodEmitter method, final Type objectType, final int objectSlot, final int start, final int end) { - final int callSiteFlags = codegen.getCallSiteFlags(); - method.load(objectType, objectSlot); - - // set postfix values - for (int i = start; i < end; i++) { - final MapTuple<Expression> tuple = tuples.get(i); - - if (LiteralNode.isConstant(tuple.value)) { - continue; - } - - final Property property = propertyMap.findProperty(tuple.key); - - if (property == null) { - final int index = ArrayIndex.getArrayIndex(tuple.key); - assert ArrayIndex.isValidArrayIndex(index); - method.dup(); - loadIndex(method, ArrayIndex.toLongIndex(index)); - loadTuple(method, tuple, false); - method.dynamicSetIndex(callSiteFlags); - } else { - method.dup(); - loadTuple(method, tuple, false); - method.dynamicSet(property.getKey(), codegen.getCallSiteFlags(), false); - } - } - } - - @Override - protected PropertyMap makeMap() { - assert propertyMap == null : "property map already initialized"; - final Class<? extends ScriptObject> clazz = getAllocatorClass(); - propertyMap = new MapCreator<>(clazz, tuples).makeSpillMap(false, codegen.useDualFields()); - return propertyMap; - } - - @Override - protected void loadValue(final Expression expr, final Type type) { - // Use generic type in order to avoid conversion between object types - codegen.loadExpressionAsType(expr, Type.generic(type)); - } - - @Override - protected Class<? extends ScriptObject> getAllocatorClass() { - return codegen.useDualFields() ? JD.class : JO.class; - } -} |