Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.ruby.parser/src/com/oracle/truffle/ruby/parser/TranslatorEnvironment.java @ 13732:fbf448929260
Ruby: remove some prototyping code no longer needed
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Sat, 18 Jan 2014 22:12:42 -0800 |
parents | 0fbee3eb71f0 |
children | 2c1c805153e6 |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.parser; import java.util.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.ruby.nodes.*; import com.oracle.truffle.ruby.nodes.methods.locals.*; import com.oracle.truffle.ruby.runtime.*; import com.oracle.truffle.ruby.runtime.core.*; import com.oracle.truffle.ruby.runtime.methods.*; public class TranslatorEnvironment { private final RubyContext context; private final FrameDescriptor frameDescriptor; private final List<FrameSlot> preParameters = new ArrayList<>(); private final List<FrameSlot> optionalParameters = new ArrayList<>(); private final Map<FrameSlot, RubyNode> optionalParametersDefaultValues = new HashMap<>(); private final List<FrameSlot> postParameters = new ArrayList<>(); private final List<FrameSlot> flipFlopStates = new ArrayList<>(); private FrameSlot restParameter = null; private FrameSlot blockParameter = null; private JRubyParser parser; private final long returnID; private final boolean ownScopeForAssignments; private final boolean neverAssignInParentScope; protected final TranslatorEnvironment parent; private String methodName = ""; private boolean needsDeclarationFrame = false; private UniqueMethodIdentifier methodIdentifier; private int tempIndex; public TranslatorEnvironment(RubyContext context, TranslatorEnvironment parent, FrameDescriptor frameDescriptor, JRubyParser parser, long returnID, boolean ownScopeForAssignments, boolean neverAssignInParentScope, UniqueMethodIdentifier methodIdentifier) { this.context = context; this.parent = parent; this.frameDescriptor = frameDescriptor; this.parser = parser; this.returnID = returnID; this.ownScopeForAssignments = ownScopeForAssignments; this.neverAssignInParentScope = neverAssignInParentScope; this.methodIdentifier = methodIdentifier; } public TranslatorEnvironment(RubyContext context, TranslatorEnvironment parent, JRubyParser parser, long returnID, boolean ownScopeForAssignments, boolean neverAssignInParentScope, UniqueMethodIdentifier methodIdentifier) { this(context, parent, new FrameDescriptor(RubyFrameTypeConversion.getInstance()), parser, returnID, ownScopeForAssignments, neverAssignInParentScope, methodIdentifier); } public int getLocalVarCount() { return getFrameDescriptor().getSize(); } public TranslatorEnvironment getParent() { return parent; } public List<FrameSlot> getPreParameters() { return preParameters; } public List<FrameSlot> getOptionalParameters() { return optionalParameters; } public Map<FrameSlot, RubyNode> getOptionalParametersDefaultValues() { return optionalParametersDefaultValues; } public List<FrameSlot> getPostParameters() { return postParameters; } public TranslatorEnvironment getParent(int level) { assert level >= 0; if (level == 0) { return this; } else { return parent.getParent(level - 1); } } public FrameSlot declareVar(String name) { return getFrameDescriptor().findOrAddFrameSlot(name); } public UniqueMethodIdentifier findMethodForLocalVar(String name) { TranslatorEnvironment current = this; do { FrameSlot slot = current.getFrameDescriptor().findFrameSlot(name); if (slot != null) { return current.methodIdentifier; } current = current.parent; } while (current != null); return null; } public RubyNode findLocalVarNode(String name, SourceSection sourceSection) { TranslatorEnvironment current = this; int level = -1; try { do { level++; FrameSlot slot = current.getFrameDescriptor().findFrameSlot(name); if (slot != null) { if (level == 0) { return ReadLocalVariableNodeFactory.create(context, sourceSection, slot); } else { return ReadLevelVariableNodeFactory.create(context, sourceSection, slot, level); } } current = current.parent; } while (current != null); } finally { if (current != null) { current = this; while (level-- > 0) { current.needsDeclarationFrame = true; current = current.parent; } } } return null; } public void setRestParameter(FrameSlot restParameter) { this.restParameter = restParameter; } public FrameSlot getRestParameter() { return restParameter; } public void setBlockParameter(FrameSlot blockParameter) { this.blockParameter = blockParameter; } public FrameSlot getBlockParameter() { return blockParameter; } public void declareFunction(String name) { declareVar(name); } public String getMethodName() { return methodName; } public void setMethodName(String methodName) { this.methodName = methodName; } public void setNeedsDeclarationFrame() { needsDeclarationFrame = true; } public boolean needsDeclarationFrame() { return needsDeclarationFrame; } public FrameDescriptor getFrameDescriptor() { return frameDescriptor; } public String allocateLocalTemp() { final String name = "rubytruffle_temp" + tempIndex; tempIndex++; declareVar(name); return name; } public long getReturnID() { return returnID; } public JRubyParser getParser() { return parser; } public boolean hasOwnScopeForAssignments() { return ownScopeForAssignments; } public boolean getNeverAssignInParentScope() { return neverAssignInParentScope; } public void addMethodDeclarationSlots() { frameDescriptor.addFrameSlot(RubyModule.VISIBILITY_FRAME_SLOT_ID); frameDescriptor.addFrameSlot(RubyModule.MODULE_FUNCTION_FLAG_FRAME_SLOT_ID); } public UniqueMethodIdentifier getUniqueMethodIdentifier() { return methodIdentifier; } public List<FrameSlot> getFlipFlopStates() { return flipFlopStates; } }