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package com.oracle.truffle.js.parser.env;

import com.oracle.truffle.api.frame.FrameSlot;
import com.oracle.truffle.js.nodes.NodeFactory;
import com.oracle.truffle.js.runtime.JSContext;

This environment stores "with" blocks. Actually, this is just a marker in the chain (tree) of environments.
/** * * This environment stores "with" blocks. Actually, this is just a marker in the chain (tree) of * environments. */
public class WithEnvironment extends Environment {
Name of the frame slot that contains the with object.
/** * Name of the frame slot that contains the with object. */
private final String withVarName; public WithEnvironment(Environment parent, NodeFactory factory, JSContext context, String withVarName) { super(parent, factory, context); this.withVarName = withVarName; assert parent.hasLocalVar(withVarName); } public String getWithVarName() { return withVarName; } @Override public FunctionEnvironment function() { return getParent().function(); } @Override public int getScopeLevel() { return getParent().getScopeLevel(); } @Override protected FrameSlot findBlockFrameSlot(String name) { return null; } @Override public boolean isDynamicScopeContext() { return true; } @Override public FrameSlot[] getParentSlots() { return getParent().getParentSlots(); } }