#ifndef Parser_h
#define Parser_h
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/OwnPtr.h>
#include <wtf/RefPtr.h>
#include "nodes.h"
namespace KJS {
class FunctionBodyNode;
class ProgramNode;
class UString;
struct UChar;
template <typename T> struct ParserRefCountedData : ParserRefCounted {
T data;
};
class Parser : Noncopyable {
public:
template <class ParsedNode>
PassRefPtr<ParsedNode> parse(const UString& sourceURL, int startingLineNumber,
const UChar* code, unsigned length,
int* sourceId = 0, int* errLine = 0, UString* errMsg = 0);
UString sourceURL() const { return m_sourceURL; }
int sourceId() const { return m_sourceId; }
void didFinishParsing(SourceElements*, ParserRefCountedData<DeclarationStacks::VarStack>*,
ParserRefCountedData<DeclarationStacks::FunctionStack>*, int lastLine);
private:
friend Parser& parser();
Parser(); void parse(int startingLineNumber, const UChar* code, unsigned length,
int* sourceId, int* errLine, UString* errMsg);
UString m_sourceURL;
int m_sourceId;
RefPtr<SourceElements> m_sourceElements;
RefPtr<ParserRefCountedData<DeclarationStacks::VarStack> > m_varDeclarations;
RefPtr<ParserRefCountedData<DeclarationStacks::FunctionStack> > m_funcDeclarations;
int m_lastLine;
};
Parser& parser();
template <class ParsedNode>
PassRefPtr<ParsedNode> Parser::parse(const UString& sourceURL, int startingLineNumber,
const UChar* code, unsigned length,
int* sourceId, int* errLine, UString* errMsg)
{
m_sourceURL = sourceURL;
parse(startingLineNumber, code, length, sourceId, errLine, errMsg);
if (!m_sourceElements) {
m_sourceURL = UString();
return 0;
}
RefPtr<ParsedNode> node = ParsedNode::create(m_sourceElements.release().get(),
m_varDeclarations ? &m_varDeclarations->data : 0,
m_funcDeclarations ? &m_funcDeclarations->data : 0);
m_varDeclarations = 0;
m_funcDeclarations = 0;
m_sourceURL = UString();
node->setLoc(startingLineNumber, m_lastLine);
return node.release();
}
}
#endif // Parser_h