/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2008 Thomas E Enebo <enebo@acm.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.internal.runtime.methods;
import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.ast.ArgsNode;
import org.jruby.ast.Node;
import org.jruby.compiler.ASTInspector;
import org.jruby.evaluator.ASTInterpreter;
import org.jruby.exceptions.JumpException;
import org.jruby.lexer.yacc.ISourcePosition;
import org.jruby.parser.StaticScope;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.PositionAware;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
/**
*
*/
public class InterpretedMethod extends DynamicMethod implements MethodArgs, PositionAware {
private StaticScope staticScope;
private Node body;
private ArgsNode argsNode;
private ISourcePosition position;
private String file;
private int line;
private boolean needsScope;
public InterpretedMethod(RubyModule implementationClass, StaticScope staticScope, Node body,
String name, ArgsNode argsNode, Visibility visibility, ISourcePosition position) {
super(implementationClass, visibility, CallConfiguration.FrameFullScopeFull, name);
this.body = body;
this.staticScope = staticScope;
this.argsNode = argsNode;
this.position = position;
// we get these out ahead of time
this.file = position.getFile();
this.line = position.getLine();
ASTInspector inspector = new ASTInspector();
inspector.inspect(body);
inspector.inspect(argsNode);
// This optimization is temporarily disabled because of the complications
// arising from moving backref/lastline into scope and not being able
// to accurately detect that situation.
// if (inspector.hasClosure() || inspector.hasScopeAwareMethods() || staticScope.getNumberOfVariables() != 0) {
// // must have scope
needsScope = true;
// } else {
// needsScope = false;
// }
assert argsNode != null;
}
public Node getBodyNode() {
return body;
}
public ArgsNode getArgsNode() {
return argsNode;
}
public StaticScope getStaticScope() {
return staticScope;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args, Block block) {
assert args != null;
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, block, runtime);
argsNode.checkArgCount(runtime, name, args.length);
argsNode.prepare(context, runtime, self, args, block);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, block, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args) {
return call(context, self, clazz, name, args, Block.NULL_BLOCK);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, Block.NULL_BLOCK, runtime);
argsNode.checkArgCount(runtime, name, 0);
argsNode.prepare(context, runtime, self, Block.NULL_BLOCK);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, Block.NULL_BLOCK, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, Block block) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, block, runtime);
argsNode.checkArgCount(runtime, name, 0);
argsNode.prepare(context, runtime, self, block);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, block, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, Block.NULL_BLOCK, runtime);
argsNode.checkArgCount(runtime, name, 1);
argsNode.prepare(context, runtime, self, arg0, Block.NULL_BLOCK);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, Block.NULL_BLOCK, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, Block block) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, block, runtime);
argsNode.checkArgCount(runtime, name, 1);
argsNode.prepare(context, runtime, self, arg0, block);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, block, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, Block.NULL_BLOCK, runtime);
argsNode.checkArgCount(runtime, name, 2);
argsNode.prepare(context, runtime, self, arg0, arg1, Block.NULL_BLOCK);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, Block.NULL_BLOCK, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, Block block) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, block, runtime);
argsNode.checkArgCount(runtime, name, 2);
argsNode.prepare(context, runtime, self, arg0, arg1, block);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, block, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, Block.NULL_BLOCK, runtime);
argsNode.checkArgCount(runtime, name, 3);
argsNode.prepare(context, runtime, self, arg0, arg1, arg2, Block.NULL_BLOCK);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, Block.NULL_BLOCK, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block) {
Ruby runtime = context.runtime;
int callNumber = context.callNumber;
try {
pre(context, name, self, block, runtime);
argsNode.checkArgCount(runtime, name, 3);
argsNode.prepare(context, runtime, self, arg0, arg1, arg2, block);
return ASTInterpreter.INTERPRET_METHOD(runtime, context, file, line, getImplementationClass(), body, name, self, block, isTraceable());
} catch (JumpException.ReturnJump rj) {
return handleReturn(context, rj, callNumber);
} catch (JumpException.RedoJump rj) {
return handleRedo(runtime);
} catch (JumpException.BreakJump bj) {
return handleBreak(context, runtime, bj, callNumber);
} finally {
post(runtime, context, name);
}
}
protected void pre(ThreadContext context, String name, IRubyObject self, Block block, Ruby runtime) {
if (needsScope) {
context.preMethodFrameAndScope(getImplementationClass(), name, self, block, staticScope);
} else {
context.preMethodFrameAndDummyScope(getImplementationClass(), name, self, block, staticScope);
}
}
protected void post(Ruby runtime, ThreadContext context, String name) {
context.postMethodFrameAndScope();
}
protected boolean isTraceable() {
return false;
}
public ISourcePosition getPosition() {
return position;
}
public String getFile() {
return position.getFile();
}
public int getLine() {
return position.getLine();
}
@Override
public Arity getArity() {
return argsNode.getArity();
}
public DynamicMethod dup() {
return new InterpretedMethod(getImplementationClass(), staticScope, body, name, argsNode, getVisibility(), position);
}
}