package org.jruby.compiler.impl;
import org.jruby.Ruby;
import org.jruby.compiler.ASTInspector;
import org.jruby.parser.StaticScope;
import org.jruby.runtime.DynamicScope;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.objectweb.asm.Label;
import static org.jruby.util.CodegenUtils.*;
public class ChainedChildBodyCompiler extends ChildScopedBodyCompiler {
ChildScopedBodyCompiler parent;
@Override
public void endBody() {
// return last value from execution
method.areturn();
Label end = new Label();
method.label(end);
method.end();
}
public ChainedChildBodyCompiler(StandardASMCompiler scriptCompiler, String methodName, ASTInspector inspector, StaticScope scope, ChildScopedBodyCompiler parent) {
super(scriptCompiler, methodName, inspector, scope);
this.parent = parent;
this.inNestedMethod = true;
}
public void beginChainedMethod() {
method.start();
method.aload(StandardASMCompiler.THREADCONTEXT_INDEX);
method.dup();
method.invokevirtual(p(ThreadContext.class), "getRuntime", sig(Ruby.class));
method.dup();
method.astore(getRuntimeIndex());
// grab nil for local variables
method.invokevirtual(p(Ruby.class), "getNil", sig(IRubyObject.class));
method.astore(getNilIndex());
method.invokevirtual(p(ThreadContext.class), "getCurrentScope", sig(DynamicScope.class));
method.dup();
method.astore(getDynamicScopeIndex());
method.invokevirtual(p(DynamicScope.class), "getValues", sig(IRubyObject[].class));
method.astore(getVarsArrayIndex());
// visit a label to start scoping for local vars in this method
method.label(scopeStart);
}
}