public override void Compile(Compiler compiler, Node node, NodeParent parent)
{
var body = (Body)node;
if (body.RescueClauses != null)
{
for (int i = 0; i < body.RescueClauses.Count; i++)
{
compiler.AppendLine("try");
compiler.AppendLine("{");
compiler.Indent();
}
}
foreach (var stmt in body.Statements)
{
compiler.CompileNode(stmt, parent.CreateChild(node));
}
if (body.RescueClauses != null)
{
foreach (var rescue in body.RescueClauses)
{
compiler.Dedent();
compiler.AppendLine("}");
compiler.AppendLine("catch(ErrorCarrier $err)");
compiler.AppendLine("{");
compiler.Indent();
StringBuilder clause = new StringBuilder();
bool first = true;
foreach (var t in rescue.Types)
{
if (t.NodeType != NodeTypes.ConstantVariable)
{
throw new FructoseCompileException("Type constant must be supplied in rescue expression", rescue);
}
if (!first)
{
clause.Append(" && ");
}
first = false;
clause.Append(string.Format("!is_a($err->val, '{0}')", Mangling.RubyIdentifierToPHP(((ConstantVariable)t).Name)));
}
compiler.AppendLine("if({0})", clause.ToString());
compiler.Indent();
compiler.AppendLine("throw $err;");
compiler.Dedent();
compiler.AppendLine("{0} = $err->val;", ((Variable)(rescue.Target ?? new GlobalVariable("!", rescue.Location))).ToPHPVariable());
foreach (var stmt in rescue.Statements)
{
compiler.CompileNode(stmt, parent.CreateChild(node));
}
compiler.Dedent();
compiler.AppendLine("}");
}
}
}
public override void Compile(Compiler compiler, Node node, NodeParent parent)
{
if (parent.OfType <ClassDefinition>().Count() > 0)
{
throw new FructoseCompileException("Nested classes are not supported.", node);
}
if (((ClassDefinition)node).SuperClass != null && ((ClassDefinition)node).SuperClass.NodeType != NodeTypes.ConstantVariable)
{
throw new FructoseCompileException("Classes may only inherit from constant expressions", node);
}
var super = (ConstantVariable)((ClassDefinition)node).SuperClass;
var cname = Mangling.RubyIdentifierToPHP(((ClassDefinition)node).QualifiedName.Name);
compiler.AppendLine("class {0} extends {1}", cname,
super == null ? "F_Object" : Mangling.RubyIdentifierToPHP(super.Name));
compiler.AppendLine("{");
compiler.Indent();
compiler.AppendLine("function __construct() { }");
compiler.AppendLine("public static function SF_new()");
compiler.AppendLine("{");
compiler.Indent();
compiler.AppendLine("$obj = new {0};", cname);
compiler.AppendLine("$args = func_get_args();");
compiler.AppendLine("if(method_exists($obj,'F_initialize'))");
compiler.Indent();
compiler.AppendLine("call_user_func_array(array($obj,'F_initialize'), $args);");
compiler.Dedent();
compiler.AppendLine("return $obj;");
compiler.Dedent();
compiler.AppendLine("}");
foreach (var child in ((ClassDefinition)node).Body.Statements)
{
if (child.NodeType == NodeTypes.MethodDefinition)
{
compiler.CompileNode(child, parent.CreateChild(node));
continue;
}
throw new FructoseCompileException("Classes may only contain method declarations at this point", node);
}
compiler.Dedent();
compiler.AppendLine("}");
}
internal static string assignmentVar(LeftValue lval, NodeParent parent)
{
if (lval is LocalVariable)
{
var method = parent.OfType <MethodDefinition>().ToArray();
if (method.Length > 0 && method[0].Parameters != null &&
method[0].Parameters.Mandatory.Where(p => p.ToString() == ((LocalVariable)lval).Name).Count() > 0)
{
return("$" + Mangling.RubyIdentifierToPHP(((LocalVariable)lval).Name));
}
if (parent.OfType <ClassDefinition>().Count() == 0)
{
return("$_locals->" + Mangling.RubyIdentifierToPHP(((LocalVariable)lval).Name));
}
}
return(((Variable)lval).ToPHPVariable());
}
public override void Compile(Compiler compiler, Node node, NodeParent parent)
{
if (parent.OfType <MethodDefinition>().Count() > 0)
{
throw new FructoseCompileException("Nested methods are not supported.", node);
}
if (((MethodDefinition)node).Parameters.Mandatory.Length > ((MethodDefinition)node).Parameters.LeadingMandatoryCount)
{
throw new FructoseCompileException("Additional arguments after splats in methods are currently unsupported.", node);
}
string visibility = parent.OfType <ClassDefinition>().Count() > 0 ?
"public " : "";
string signature = visibility + "function " + Mangling.RubyMethodToPHP(((MethodDefinition)node).Name) + "(";
List <string> compiledParams = new List <string>();
if (((MethodDefinition)node).Name.Contains("__lambda_"))
{
compiledParams.Add("$_locals");
}
compiledParams.Add("$block");
foreach (var arg in ((MethodDefinition)node).Parameters.Mandatory)
{
compiledParams.Add("$" + Mangling.RubyIdentifierToPHP(arg.ToString()));
}
foreach (var arg in ((MethodDefinition)node).Parameters.Optional)
{
compiledParams.Add("$" + Mangling.RubyIdentifierToPHP(arg.Left.ToString()) + "=NULL");
}
signature += String.Join(", ", compiledParams);
signature += ")";
compiler.AppendLine(signature);
compiler.AppendLine("{");
compiler.Indent();
compiler.AppendLine("$_stack = array();");
compiler.AppendLine("if(!isset($_locals)) $_locals = new stdClass;");
if (parent.OfType <ClassDefinition>().Count() > 0)
{
compiler.AppendLine("if(!isset($_locals->self)) $_locals->self = $this;");
}
else
{
compiler.AppendLine("global $_gthis;");
compiler.AppendLine("if(!isset($_locals->self)) $_locals->self = $_gthis;");
}
compiler.AppendLine("if(!isset($_locals->block)) $_locals->block = $block;");
compiler.AppendLine("foreach(array(" + string.Join(", ", ((MethodDefinition)node).Parameters.Mandatory
.Select(arg => "\"" + Mangling.RubyIdentifierToPHP(arg.ToString()) + "\"")
.ToArray()) + ") as $parm)");
compiler.Indent();
compiler.AppendLine("$_locals->$parm = $$parm;");
compiler.Dedent();
foreach (var arg in ((MethodDefinition)node).Parameters.Optional)
{
string parm = Mangling.RubyIdentifierToPHP(arg.Left.ToString());
compiler.AppendLine("if($" + parm + " === NULL) {");
compiler.Indent();
compiler.CompileNode(arg.Right, parent.CreateChild(node));
compiler.AppendLine("$_locals->" + parm + " = array_pop($_stack);");
compiler.Dedent();
compiler.AppendLine("} else {");
compiler.Indent();
compiler.AppendLine("$_locals->" + parm + " = $" + parm + ";");
compiler.Dedent();
compiler.AppendLine("}");
}
if (((MethodDefinition)node).Parameters.Unsplat != null)
{
compiler.AppendLine("$_locals->" + Mangling.RubyIdentifierToPHP(((MethodDefinition)node).Parameters.Unsplat.ToString()) + " = "
+ "F_Array::__from_array(array_slice(func_get_args(), " + compiledParams.Count + "));");
}
compiler.AppendLine("global $_lambda_objs;");
compiler.AppendLine("global $_globals;");
foreach (var child in ((MethodDefinition)node).Body.Statements)
{
compiler.CompileNode(child, parent.CreateChild(node));
}
if (((MethodDefinition)node).Name.Contains("__lambda_"))
{
compiler.AppendLine("return array( 'locals' => $_locals, 'retval' => array_pop($_stack) );");
}
else
{
compiler.AppendLine("return array_pop($_stack);");
}
compiler.Dedent();
compiler.AppendLine("}");
}
public override void Compile(Compiler compiler, Node node, NodeParent parent)
{
if (node is IsDefinedExpression)
{
var ide = (IsDefinedExpression)node;
switch (ide.Expression.NodeType)
{
case NodeTypes.MethodCall:
compiler.AppendLine("$_stack[] = F_TrueClass::__from_bool(function_exists('{0}'));", Mangling.RubyMethodToPHP(((MethodCall)ide.Expression).MethodName));
return;
case NodeTypes.ConstantVariable:
compiler.AppendLine("$_stack[] = F_TrueClass::__from_bool(class_exists('{0}'));", Mangling.RubyMethodToPHP(((ConstantVariable)ide.Expression).Name));
return;
case NodeTypes.ClassVariable:
case NodeTypes.GlobalVariable:
case NodeTypes.InstanceVariable:
case NodeTypes.LocalVariable:
compiler.AppendLine("$_stack[] = F_TrueClass::__from_bool(isset({0}));", ((Variable)ide.Expression).ToPHPVariable());
return;
default:
throw new FructoseCompileException("Not supported yet: defined?( " + ide.Expression.NodeType.ToString() + " )", ide.Expression);
}
}
else
{
throw new FructoseCompileException("Not supported yet: " + node.ToString(), node);
}
}
public override void Compile(Compiler compiler, Node node, NodeParent parent)
{
var method = parent.OfType <MethodDefinition>().ToArray();
if (method.Length > 0 && method[0].Parameters != null &&
method[0].Parameters.Mandatory.Where(p => p.ToString() == ((LocalVariable)node).Name).Count() > 0)
{
compiler.AppendLine("$_stack[] = isset(${0}) ? (${0}) : (new F_NilClass);", Mangling.RubyIdentifierToPHP(((Variable)node).Name));
return;
}
if (parent.OfType <ClassDefinition>().Count() == 0)
{
compiler.AppendLine("$_stack[] = isset($_locals->{0}) ? ($_locals->{0}) : (new F_NilClass);", Mangling.RubyIdentifierToPHP(((Variable)node).Name));
return;
}
compiler.AppendLine("$_stack[] = isset({0}) ? ({0}) : (new F_NilClass);", ((Variable)node).ToPHPVariable());
}
public override void Compile(Compiler compiler, IronRuby.Compiler.Ast.Node node, NodeParent parent)
{
string mname = Mangling.RubyMethodToPHP(((MethodCall)node).MethodName);
if (compilerMethods.ContainsKey(mname))
{
compilerMethods[mname].Compile(compiler, (MethodCall)node, parent);
return;
}
if (((MethodCall)node).Arguments != null)
{
foreach (var arg in ((MethodCall)node).Arguments.Expressions.Reverse())
{
compiler.CompileNode(arg, parent.CreateChild(node));
}
}
bool callStatic = false;
if (((MethodCall)node).Target == null)
{
compiler.AppendLine("$_stack[] = $_locals->self;");
}
else
{
if (((MethodCall)node).Target.NodeType == NodeTypes.ConstantVariable)
{
callStatic = true;
}
else
{
compiler.CompileNode(((MethodCall)node).Target, parent.CreateChild(node));
}
}
if (((MethodCall)node).Block != null)
{
compiler.AppendLine("$_lambda_objs_offset = count($_lambda_objs);");
compiler.AppendLine("$_lambda_objs[] = $_locals;");
}
if (((MethodCall)node).Block != null)
{
compiler.AppendLine("try");
compiler.AppendLine("{");
compiler.Indent();
}
string call = callStatic
? string.Format("$_stack[] = {0}::S{1}(", Mangling.RubyIdentifierToPHP(((ConstantVariable)((MethodCall)node).Target).Name), mname)
: string.Format("$_stack[] = array_pop($_stack)->{0}(", mname);
if (((MethodCall)node).Block != null)
{
if (((MethodCall)node).Block.NodeType == NodeTypes.BlockReference)
{
var expr = ((BlockReference)((MethodCall)node).Block).Expression;
if (expr.NodeType != NodeTypes.LocalVariable &&
parent.OfType <MethodDefinition>().Count() != 1 &&
parent.OfType <MethodDefinition>().Single().Parameters != null &&
parent.OfType <MethodDefinition>().Single().Parameters.Block != null &&
((LocalVariable)expr).Name != parent.OfType <MethodDefinition>().Single().Parameters.Block.Name)
{
throw new FructoseCompileException("Block references not referring to a block parameter are not yet supported.", ((MethodCall)node).Block);
}
call += "$block";
}
else
{
var block_mname = compiler.Transformations.RefactoredBlocksToMethods[(BlockDefinition)((MethodCall)node).Block];
call += "create_function('',sprintf('global $_lambda_objs; $args = func_get_args(); $offset = %d; $_locals = $_lambda_objs[$offset]; array_unshift($args, $_locals); $r = call_user_func_array(";
if (parent.OfType <ClassDefinition>().Count() > 0)
{
call += "array($_locals->self,\"" + Mangling.RubyIdentifierToPHP(block_mname) + "\")";
}
else
{
call += "\"" + Mangling.RubyIdentifierToPHP(block_mname) + "\"";
}
call += ", $args); $_lambda_objs[$offset] = $r[\"locals\"]; return $r[\"retval\"];',$_lambda_objs_offset))";
}
}
else
{
call += "NULL";
}
if (((MethodCall)node).Arguments != null)
{
for (int i = 0; i < ((MethodCall)node).Arguments.Expressions.Length; i++)
{
call += ", array_pop($_stack)";
}
}
compiler.AppendLine(call + ");");
if (((MethodCall)node).Block != null)
{
compiler.Dedent();
compiler.AppendLine("}");
compiler.AppendLine("catch(ReturnFromBlock $rfb)");
compiler.AppendLine("{");
compiler.Indent();
compiler.AppendLine("return $rfb->val;");
compiler.Dedent();
compiler.AppendLine("}");
compiler.AppendLine("$_locals = $_lambda_objs[$_lambda_objs_offset];");
}
}
public override void Compile(Compiler compiler, IronRuby.Compiler.Ast.Node node, NodeParent parent)
{
var sae = (SimpleAssignmentExpression)node;
// substitute a method call of []= rather than the crap that ironruby's parser produces:
switch (sae.Left.NodeType)
{
case NodeTypes.ArrayItemAccess:
var aia = (ArrayItemAccess)sae.Left;
compiler.CompileNode(new MethodCall(aia.Array, "[]=", new Arguments(aia.Arguments.Expressions.Concat(new[] { sae.Right }).ToArray()), sae.Location), parent.CreateChild(node));
return;
case NodeTypes.AttributeAccess:
var aa = (AttributeAccess)sae.Left;
compiler.CompileNode(new MethodCall(aa.Qualifier, aa.Name, new Arguments(sae.Right), aa.Location), parent.CreateChild(node));
return;
}
compiler.CompileNode(sae.Right, parent.CreateChild(node));
if (sae.Operation != null)
{
compiler.AppendLine("$_stack[] = {0};", assignmentVar(sae.Left, parent));
compiler.AppendLine("$_stack[] = array_pop($_stack)->{0}(NULL, array_pop($_stack));", Mangling.RubyMethodToPHP(sae.Operation));
}
compiler.AppendLine("{0} = $_stack[count($_stack)-1];", assignmentVar(sae.Left, parent));
}
