org.jruby.runtime.SharedScopeBlock Maven / Gradle / Ivy
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* Copyright (C) 2007 Thomas E Enebo
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package org.jruby.runtime;
import org.jruby.RubyModule;
import org.jruby.ast.IterNode;
import org.jruby.runtime.builtin.IRubyObject;
/**
* Represents the live state of a for or END construct in Ruby. This is different from an
* ordinary block in that it does not have its own scoped variables. It leeches those from
* the next outer scope. Because of this we do not set up, clone, nor tear down scope-related
* stuff. Also because of this we do not need to clone the block since it state does not change.
*
*/
public class SharedScopeBlock extends InterpretedBlock {
protected SharedScopeBlock(IterNode iterNode) {
super(iterNode, asArgumentType(getArgumentTypeWackyHack(iterNode)));
}
public static Block newInterpretedSharedScopeClosure(ThreadContext context, IterNode iterNode, DynamicScope dynamicScope, IRubyObject self) {
Binding binding = context.currentBinding(self, dynamicScope);
InterpretedBlock body = new SharedScopeBlock(iterNode);
return new Block(body, binding);
}
@Override
protected Frame pre(ThreadContext context, RubyModule klass, Binding binding) {
return context.preForBlock(binding, klass);
}
public IRubyObject call(ThreadContext context, IRubyObject[] args, IRubyObject replacementSelf, Binding binding, Block.Type type) {
return yield(context, context.getRuntime().newArrayNoCopy(args), null, null, true, binding, type);
}
@Override
public Block cloneBlock(Binding binding) {
return new Block(this, binding);
}
}