jruby/src/org/jruby/ast/ArgsNode.java at serializable_procs · MSNexploder/jruby · GitHub

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***** 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.

* 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"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the CPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the CPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

////////////////////////////////////////////////////////////////////////////////

// NOTE: THIS FILE IS GENERATED! DO NOT EDIT THIS FILE!

// generated from: src/org/jruby/ast/ArgsNode.erb

// using arities: src/org/jruby/ast/ArgsNode.arities.erb

////////////////////////////////////////////////////////////////////////////////

package org.jruby.ast;

import java.io.IOException;

import java.io.ObjectInput;

import java.io.ObjectOutput;

import java.util.List;

import org.jruby.Ruby;

import org.jruby.RubyArray;

import org.jruby.ast.visitor.NodeVisitor;

import org.jruby.javasupport.util.RuntimeHelpers;

import org.jruby.lexer.yacc.ISourcePosition;

import org.jruby.runtime.Arity;

import org.jruby.runtime.Block;

import org.jruby.runtime.DynamicScope;

import org.jruby.runtime.ThreadContext;

import org.jruby.runtime.builtin.IRubyObject;

/**

* Represents the argument declarations of a method. The fields:

* foo(p1, ..., pn, o1 = v1, ..., on = v2, *r, q1, ..., qn)

* p1...pn = pre arguments

* o1...on = optional arguments

* r = rest argument

* q1...qn = post arguments (only in 1.9)

public class ArgsNode extends Node {

private static final long serialVersionUID = 0L;

private ListNode pre;

private int preCount;

private ListNode optArgs;

protected ArgumentNode restArgNode;

protected int restArg;

private BlockArgNode blockArgNode;

protected Arity arity;

private int requiredArgsCount;

protected boolean hasOptArgs;

protected boolean hasMasgnArgs;

protected int maxArgsCount;

protected boolean isSimple;

// Only in ruby 1.9 methods

private ListNode post;

private int postCount;

private int postIndex;

public ArgsNode() {

super();

}

/**

* @param optionalArguments Node describing the optional arguments

* This Block will contain assignments to locals (LAsgnNode)

* @param restArguments index of the rest argument in the local table

* (the array argument prefixed by a * which collects

* all additional params)

* or -1 if there is none.

* @param argsCount number of regular arguments

* @param restArgNode The rest argument (*args).

* @param blockArgNode An optional block argument (&arg).

**/

public ArgsNode(ISourcePosition position, ListNode pre, ListNode optionalArguments,

RestArgNode rest, ListNode post, BlockArgNode blockArgNode) {

super(position);

this.pre = pre;

this.preCount = pre == null ? 0 : pre.size();

this.post = post;

this.postCount = post == null ? 0 : post.size();

int optArgCount = optionalArguments == null ? 0 : optionalArguments.size();

this.postIndex = getPostCount(preCount, optArgCount, rest);

this.optArgs = optionalArguments;

this.restArg = rest == null ? -1 : rest.getIndex();

this.restArgNode = rest;

this.blockArgNode = blockArgNode;

this.requiredArgsCount = preCount + postCount;

this.hasOptArgs = getOptArgs() != null;

this.hasMasgnArgs = hasMasgnArgs();

this.maxArgsCount = getRestArg() >= 0 ? -1 : getRequiredArgsCount() + getOptionalArgsCount();

this.arity = calculateArity();

this.isSimple = !(hasMasgnArgs || hasOptArgs || restArg >= 0 || postCount > 0);

}

private int getPostCount(int preCount, int optArgCount, RestArgNode rest) {

// Simple-case: If we have a rest we know where it is

if (rest != null) return rest.getIndex() + 1;

return preCount + optArgCount;

}

public NodeType getNodeType() {

return NodeType.ARGSNODE;

}

protected Arity calculateArity() {

if (restArgNode instanceof UnnamedRestArgNode) return Arity.optional();

if (getOptArgs() != null || getRestArg() >= 0) return Arity.required(getRequiredArgsCount());

return Arity.createArity(getRequiredArgsCount());

}

protected boolean hasMasgnArgs() {

if (preCount > 0) for (Node node : pre.childNodes()) {

if (node instanceof AssignableNode) return true;

}

if (postCount > 0) for (Node node : post.childNodes()) {

if (node instanceof AssignableNode) return true;

}

return false;

}

/**

* Accept for the visitor pattern.

* @param iVisitor the visitor

**/

public Object accept(NodeVisitor iVisitor) {

return iVisitor.visitArgsNode(this);

}

/**

* Gets the required arguments at the beginning of the argument definition

public ListNode getPre() {

return pre;

}

@Deprecated

public ListNode getArgs() {

return pre;

}

public Arity getArity() {

return arity;

}

public int getRequiredArgsCount() {

return requiredArgsCount;

}

public int getOptionalArgsCount() {

return optArgs == null ? 0 : optArgs.size();

}

public ListNode getPost() {

return post;

}

public int getMaxArgumentsCount() {

return maxArgsCount;

}

/**

* Gets the optArgs.

* @return Returns a ListNode

public ListNode getOptArgs() {

return optArgs;

}

/**

* Gets the restArg.

* @return Returns a int

public int getRestArg() {

return restArg;

}

/**

* Gets the restArgNode.

* @return Returns an ArgumentNode

public ArgumentNode getRestArgNode() {

return restArgNode;

}

@Deprecated

public BlockArgNode getBlockArgNode() {

return blockArgNode;

}

/**

* Gets the explicit block argument of the parameter list (&block).

* @return Returns a BlockArgNode

public BlockArgNode getBlock() {

return blockArgNode;

}

public int getPostCount() {

return postCount;

}

public int getPostIndex() {

return postIndex;

}

public int getPreCount() {

return preCount;

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject[] args, Block block) {

DynamicScope scope = context.getCurrentScope();

// Bind 'normal' parameter values to the local scope for this method.

if (!hasMasgnArgs) {

// no arg grouping, just use bulk assignment methods

if (preCount > 0) scope.setArgValues(args, Math.min(args.length, preCount));

if (postCount > 0) scope.setEndArgValues(args, postIndex, postCount);

} else {

masgnAwareArgAssign(context, runtime, self, args, block, scope);

}

// optArgs and restArgs require more work, so isolate them and ArrayList creation here

if (hasOptArgs || restArg != -1) prepareOptOrRestArgs(context, runtime, scope, self, args);

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

private void masgnAwareArgAssign(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject[] args, Block block, DynamicScope scope) {

// arg grouping, use slower arg walking logic

if (preCount > 0) {

int size = pre.size();

for (int i = 0; i < size; i++) {

Node next = pre.get(i);

if (next instanceof AssignableNode) {

((AssignableNode)next).assign(runtime, context, self, args[i], block, false);

} else {

scope.setValue(i, args[i], 0);

}

if (postCount > 0) {

int size = post.size();

int argsLength = args.length;

for (int i = 0; i < size; i++) {

Node next = post.get(i);

if (next instanceof AssignableNode) {

((AssignableNode)next).assign(runtime, context, self, args[argsLength - postCount + i], block, false);

} else {

scope.setValue(i + postIndex, args[argsLength - postCount + i], 0);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues();

} else {

prepare(context, runtime, self, IRubyObject.NULL_ARRAY, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, IRubyObject arg4, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, IRubyObject arg4, IRubyObject arg5, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4, arg5);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4, arg5}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void prepare(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, IRubyObject arg4, IRubyObject arg5, IRubyObject arg6, Block block) {

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4, arg5, arg6}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

DynamicScope scope = context.getCurrentScope();

if (isSimple) {

scope.setArgValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9);

} else {

prepare(context, runtime, self, new IRubyObject[] {arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9}, block);

}

if (getBlock() != null) processBlockArg(scope, runtime, block);

}

public void checkArgCount(Ruby runtime, int argsLength) {

// arity.checkArity(runtime, argsLength);

Arity.checkArgumentCount(runtime, argsLength, requiredArgsCount, maxArgsCount);

}

protected void prepareOptOrRestArgs(ThreadContext context, Ruby runtime, DynamicScope scope,

IRubyObject self, IRubyObject[] args) {

prepareRestArg(context, runtime, scope, args, prepareOptionalArguments(context, runtime, self, args));

}

protected int prepareOptionalArguments(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject[] args) {

return hasOptArgs ? assignOptArgs(args, runtime, context, self, preCount) : preCount;

}

protected void prepareRestArg(ThreadContext context, Ruby runtime, DynamicScope scope,

IRubyObject[] args, int givenArgsCount) {

if (restArg >= 0) {

int sizeOfRestArg = args.length - postCount - givenArgsCount;

if (sizeOfRestArg <= 0) { // no more values to stick in rest arg

scope.setValue(restArg, RubyArray.newArray(runtime), 0);

} else {

scope.setValue(restArg, RubyArray.newArrayNoCopy(runtime, args, givenArgsCount, sizeOfRestArg), 0);

}

protected int assignOptArgs(IRubyObject[] args, Ruby runtime, ThreadContext context, IRubyObject self, int givenArgsCount) {

// assign given optional arguments to their variables

int j = 0;

for (int i = preCount; i < args.length - postCount && j < optArgs.size(); i++, j++) {

// in-frame EvalState should already have receiver set as self, continue to use it

optArgs.get(j).assign(runtime, context, self, args[i], Block.NULL_BLOCK, true);

givenArgsCount++;

}

// assign the default values, adding to the end of allArgs

for (int i = 0; j < optArgs.size(); i++, j++) {

optArgs.get(j).interpret(runtime, context, self, Block.NULL_BLOCK);

}

return givenArgsCount;

}

protected void processBlockArg(DynamicScope scope, Ruby runtime, Block block) {

scope.setValue(getBlock().getCount(), RuntimeHelpers.processBlockArgument(runtime, block), 0);

}

public List<Node> childNodes() {

if (post != null) return Node.createList(pre, optArgs, restArgNode, post, blockArgNode);

return Node.createList(pre, optArgs, restArgNode, blockArgNode);

}

public void writeExternal(ObjectOutput out) throws IOException {

super.writeExternal(out);

out.writeObject(pre);

out.writeInt(preCount);

out.writeObject(optArgs);

out.writeObject(restArgNode);

out.writeInt(restArg);

out.writeObject(blockArgNode);

out.writeObject(arity);

out.writeInt(requiredArgsCount);

out.writeBoolean(hasOptArgs);

out.writeBoolean(hasMasgnArgs);

out.writeInt(maxArgsCount);

out.writeBoolean(isSimple);

out.writeObject(post);

out.writeInt(postCount);

out.writeInt(postIndex);

}

public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {

super.readExternal(in);

pre = (ListNode)in.readObject();

preCount = in.readInt();

optArgs = (ListNode)in.readObject();

restArgNode = (ArgumentNode)in.readObject();

restArg = in.readInt();

blockArgNode = (BlockArgNode)in.readObject();

arity = (Arity)in.readObject();

requiredArgsCount = in.readInt();

hasOptArgs = in.readBoolean();

hasMasgnArgs = in.readBoolean();

maxArgsCount = in.readInt();

isSimple = in.readBoolean();

post = (ListNode)in.readObject();

postCount = in.readInt();

postIndex = in.readInt();

}

jruby/src/org/jruby/ast/ArgsNode.java at serializable_procs · MSNexploder/jruby · GitHub

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