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//===-- GoParser.h -----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_GoParser_h
#define liblldb_GoParser_h
#include "lldb/lldb-private.h"
#include "Plugins/ExpressionParser/Go/GoAST.h"
#include "Plugins/ExpressionParser/Go/GoLexer.h"
namespace lldb_private
{
class GoParser
{
public:
explicit GoParser(const char *src);
GoASTStmt *Statement();
GoASTStmt *GoStmt();
GoASTStmt *ReturnStmt();
GoASTStmt *BranchStmt();
GoASTStmt *EmptyStmt();
GoASTStmt *ExpressionStmt(GoASTExpr *e);
GoASTStmt *IncDecStmt(GoASTExpr *e);
GoASTStmt *Assignment(GoASTExpr *e);
GoASTBlockStmt *Block();
GoASTExpr *MoreExpressionList(); // ["," Expression]
GoASTIdent *MoreIdentifierList(); // ["," Identifier]
GoASTExpr *Expression();
GoASTExpr *UnaryExpr();
GoASTExpr *OrExpr();
GoASTExpr *AndExpr();
GoASTExpr *RelExpr();
GoASTExpr *AddExpr();
GoASTExpr *MulExpr();
GoASTExpr *PrimaryExpr();
GoASTExpr *Operand();
GoASTExpr *Conversion();
GoASTExpr *Selector(GoASTExpr *e);
GoASTExpr *IndexOrSlice(GoASTExpr *e);
GoASTExpr *TypeAssertion(GoASTExpr *e);
GoASTExpr *Arguments(GoASTExpr *e);
GoASTExpr *Type();
GoASTExpr *Type2();
GoASTExpr *ArrayOrSliceType(bool allowEllipsis);
GoASTExpr *StructType();
GoASTExpr *FunctionType();
GoASTExpr *InterfaceType();
GoASTExpr *MapType();
GoASTExpr *ChanType();
GoASTExpr *ChanType2();
GoASTExpr *Name();
GoASTExpr *QualifiedIdent(GoASTIdent *p);
GoASTIdent *Identifier();
GoASTField *FieldDecl();
GoASTExpr *AnonymousFieldType();
GoASTExpr *FieldNamesAndType(GoASTField *f);
GoASTFieldList *Params();
GoASTField *ParamDecl();
GoASTExpr *ParamType();
GoASTFuncType *Signature();
GoASTExpr *CompositeLit();
GoASTExpr *FunctionLit();
GoASTExpr *Element();
GoASTCompositeLit *LiteralValue();
bool
Failed() const
{
return m_failed;
}
bool
AtEOF() const
{
return m_lexer.BytesRemaining() == 0 && m_pos == m_tokens.size();
}
void GetError(Error &error);
private:
class Rule;
friend class Rule;
std::nullptr_t
syntaxerror()
{
m_failed = true;
return nullptr;
}
GoLexer::Token &
next()
{
if (m_pos >= m_tokens.size())
{
if (m_pos != 0 &&
(m_tokens.back().m_type == GoLexer::TOK_EOF || m_tokens.back().m_type == GoLexer::TOK_INVALID))
return m_tokens.back();
m_pos = m_tokens.size();
m_tokens.push_back(m_lexer.Lex());
}
return m_tokens[m_pos++];
}
GoLexer::TokenType
peek()
{
GoLexer::Token &tok = next();
--m_pos;
return tok.m_type;
}
GoLexer::Token *
match(GoLexer::TokenType t)
{
GoLexer::Token &tok = next();
if (tok.m_type == t)
return &tok;
--m_pos;
m_last_tok = t;
return nullptr;
}
GoLexer::Token *
mustMatch(GoLexer::TokenType t)
{
GoLexer::Token *tok = match(t);
if (tok)
return tok;
return syntaxerror();
}
bool Semicolon();
GoASTStmt *
FinishStmt(GoASTStmt *s)
{
if (!Semicolon())
m_failed = true;
return s;
}
llvm::StringRef CopyString(llvm::StringRef s);
GoLexer m_lexer;
std::vector<GoLexer::Token> m_tokens;
size_t m_pos;
llvm::StringRef m_error;
llvm::StringRef m_last;
GoLexer::TokenType m_last_tok;
llvm::StringMap<uint8_t> m_strings;
bool m_failed;
};
}
#endif
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