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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FXFA_FM2JS_CXFA_FMPARSER_H_
#define XFA_FXFA_FM2JS_CXFA_FMPARSER_H_
#include <memory>
#include <vector>
#include "xfa/fxfa/fm2js/cxfa_fmexpression.h"
#include "xfa/fxfa/fm2js/cxfa_fmlexer.h"
class CXFA_FMParser {
public:
explicit CXFA_FMParser(const WideStringView& wsFormcalc);
~CXFA_FMParser();
std::unique_ptr<CXFA_FMFunctionDefinition> Parse();
bool HasError() const;
void SetMaxParseDepthForTest(unsigned long max_depth) {
m_max_parse_depth = max_depth;
}
private:
bool NextToken();
bool CheckThenNext(XFA_FM_TOKEN op);
bool IncrementParseDepthAndCheck();
std::vector<std::unique_ptr<CXFA_FMExpression>> ParseTopExpression();
std::unique_ptr<CXFA_FMExpression> ParseFunction();
std::unique_ptr<CXFA_FMExpression> ParseExpression();
std::unique_ptr<CXFA_FMExpression> ParseVarExpression();
std::unique_ptr<CXFA_FMExpression> ParseExpExpression();
std::unique_ptr<CXFA_FMExpression> ParseBlockExpression();
std::unique_ptr<CXFA_FMExpression> ParseIfExpression();
std::unique_ptr<CXFA_FMExpression> ParseWhileExpression();
std::unique_ptr<CXFA_FMExpression> ParseForExpression();
std::unique_ptr<CXFA_FMExpression> ParseForeachExpression();
std::unique_ptr<CXFA_FMExpression> ParseDoExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseParenExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseSimpleExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseSubassignmentInForExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalOrExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalAndExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseEqualityExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseRelationalExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseAddtiveExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseMultiplicativeExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParseUnaryExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParsePrimaryExpression();
std::unique_ptr<CXFA_FMSimpleExpression> ParsePostExpression(
std::unique_ptr<CXFA_FMSimpleExpression> e);
std::unique_ptr<CXFA_FMSimpleExpression> ParseIndexExpression();
std::unique_ptr<CXFA_FMLexer> m_lexer;
CXFA_FMToken m_token;
bool m_error;
unsigned long m_parse_depth;
unsigned long m_max_parse_depth;
};
#endif // XFA_FXFA_FM2JS_CXFA_FMPARSER_H_
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