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A Shaded CQL ActivityType driver for http://nosqlbench.io/
/*
* Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
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* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
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* This license is subject to the following condition:
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* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
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*/
package com.oracle.truffle.js.nodes.access;
import java.util.List;
import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
import com.oracle.truffle.api.frame.Frame;
import com.oracle.truffle.api.frame.FrameSlot;
import com.oracle.truffle.api.frame.FrameUtil;
import com.oracle.truffle.api.frame.MaterializedFrame;
import com.oracle.truffle.api.nodes.ExplodeLoop;
import com.oracle.truffle.api.nodes.NodeCost;
import com.oracle.truffle.api.nodes.NodeInfo;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.runtime.JSArguments;
import com.oracle.truffle.js.runtime.JSFrameUtil;
public abstract class ScopeFrameNode extends JavaScriptBaseNode {
public static final Object PARENT_SCOPE_IDENTIFIER = "";
public static final FrameSlot[] EMPTY_FRAME_SLOT_ARRAY = {};
public static ScopeFrameNode createCurrent() {
return CurrentFrameNode.instance();
}
public static ScopeFrameNode create(int frameLevel) {
return create(frameLevel, 0, EMPTY_FRAME_SLOT_ARRAY);
}
public static ScopeFrameNode create(int frameLevel, int scopeLevel, FrameSlot[] parentSlots) {
assert scopeLevel == parentSlots.length;
if (frameLevel == 0) {
if (scopeLevel == 0) {
return CurrentFrameNode.instance();
}
return new EnclosingScopeFrameNode(scopeLevel, parentSlots);
} else if (scopeLevel == 0) {
assert frameLevel > 0;
return EnclosingFunctionFrameNode.instance(frameLevel);
}
return new EnclosingFunctionScopeFrameNode(frameLevel, scopeLevel, parentSlots);
}
public static boolean isBlockScopeFrame(Frame frame) {
List slots = frame.getFrameDescriptor().getSlots();
return !slots.isEmpty() && slots.get(0).getIdentifier() == PARENT_SCOPE_IDENTIFIER;
}
public static Frame getBlockScopeParentFrame(Frame frame) {
List slots = frame.getFrameDescriptor().getSlots();
if (!slots.isEmpty()) {
FrameSlot parentSlot = slots.get(0);
if (parentSlot.getIdentifier() == PARENT_SCOPE_IDENTIFIER) {
return (Frame) FrameUtil.getObjectSafe(frame, parentSlot);
}
}
return null;
}
public static Frame getNonBlockScopeParentFrame(Frame frame) {
Frame parent = frame;
while (isBlockScopeFrame(parent)) {
parent = getBlockScopeParentFrame(parent);
}
return parent;
}
public abstract Frame executeFrame(Frame frame);
@Override
public final boolean isAdoptable() {
return false;
}
@NodeInfo(cost = NodeCost.NONE)
private static final class CurrentFrameNode extends ScopeFrameNode {
private static final ScopeFrameNode INSTANCE = new CurrentFrameNode();
private CurrentFrameNode() {
}
static ScopeFrameNode instance() {
return INSTANCE;
}
@Override
public Frame executeFrame(Frame frame) {
return frame;
}
}
private static final class EnclosingScopeFrameNode extends ScopeFrameNode {
private final int scopeLevel;
@CompilationFinal(dimensions = 1) private final FrameSlot[] parentSlots;
EnclosingScopeFrameNode(int scopeLevel, FrameSlot[] parentSlots) {
assert scopeLevel >= 1;
this.scopeLevel = scopeLevel;
this.parentSlots = parentSlots;
}
@Override
@ExplodeLoop
public Frame executeFrame(Frame frame) {
Frame retFrame = frame;
for (int i = 0; i < scopeLevel; i++) {
retFrame = JSFrameUtil.castMaterializedFrame(FrameUtil.getObjectSafe(retFrame, parentSlots[i]));
}
return retFrame;
}
}
private static final class EnclosingFunctionScopeFrameNode extends ScopeFrameNode {
private final int frameLevel;
private final int scopeLevel;
@CompilationFinal(dimensions = 1) private final FrameSlot[] parentSlots;
EnclosingFunctionScopeFrameNode(int frameLevel, int scopeLevel, FrameSlot[] parentSlots) {
this.frameLevel = frameLevel;
this.scopeLevel = scopeLevel;
this.parentSlots = parentSlots;
}
@Override
@ExplodeLoop
public Frame executeFrame(Frame frame) {
Frame retFrame = frame;
for (int i = 0; i < frameLevel; i++) {
retFrame = JSFrameUtil.castMaterializedFrame(JSArguments.getEnclosingFrame(retFrame.getArguments()));
}
for (int i = 0; i < scopeLevel; i++) {
retFrame = JSFrameUtil.castMaterializedFrame(FrameUtil.getObjectSafe(retFrame, parentSlots[i]));
}
return retFrame;
}
}
private static final class EnclosingFunctionFrameNode extends ScopeFrameNode {
private final int frameLevel;
private static final ScopeFrameNode[] STATIC_INSTANCES = {CurrentFrameNode.instance(),
new EnclosingFunctionFrameNode(1), new EnclosingFunctionFrameNode(2), new EnclosingFunctionFrameNode(3)};
private EnclosingFunctionFrameNode(int frameLevel) {
assert frameLevel >= 1;
this.frameLevel = frameLevel;
}
static ScopeFrameNode instance(int frameLevel) {
if (frameLevel < EnclosingFunctionFrameNode.STATIC_INSTANCES.length) {
return EnclosingFunctionFrameNode.STATIC_INSTANCES[frameLevel];
}
return new EnclosingFunctionFrameNode(frameLevel);
}
@Override
@ExplodeLoop
public Frame executeFrame(Frame frame) {
MaterializedFrame retFrame = JSFrameUtil.castMaterializedFrame(JSArguments.getEnclosingFrame(frame.getArguments()));
int level = frameLevel;
if (level > 1) {
for (int i = 1; i < level; i++) {
retFrame = JSFrameUtil.castMaterializedFrame(JSArguments.getEnclosingFrame(retFrame.getArguments()));
}
}
return retFrame;
}
}
}
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