// See the file "COPYING" in the main distribution directory for copyright.

// Low-level methods for emitting code.
//
// This file is included by Compile.h to insert into the CPPCompiler class.

// The following all need to be able to emit code.
friend class CPP_BasicConstInitsInfo;
friend class CPP_CompoundInitsInfo;
friend class IndicesManager;

// Used to create (indented) C++ {...} code blocks.  "needs_semi"
// controls whether to terminate the block with a ';' (such as
// for class definitions.
void StartBlock();
void EndBlock(bool needs_semi = false);

void IndentUp() { ++block_level; }
void IndentDown() { --block_level; }

// Various ways of generating code.  The multi-argument methods
// assume that the first argument is a printf-style format
// (but one that can only have %s specifiers).
void Emit(const std::string& str) const {
    Indent();
    fprintf(write_file, "%s", str.c_str());
    NL();
}

void Emit(const std::string& fmt, const std::string& arg, bool do_NL = true) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg.c_str());
    if ( do_NL )
        NL();
}

void Emit(const std::string& fmt, const std::string& arg1, const std::string& arg2) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg1.c_str(), arg2.c_str());
    NL();
}

void Emit(const std::string& fmt, const std::string& arg1, const std::string& arg2, const std::string& arg3) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg1.c_str(), arg2.c_str(), arg3.c_str());
    NL();
}

void Emit(const std::string& fmt, const std::string& arg1, const std::string& arg2, const std::string& arg3,
          const std::string& arg4) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg1.c_str(), arg2.c_str(), arg3.c_str(), arg4.c_str());
    NL();
}

void Emit(const std::string& fmt, const std::string& arg1, const std::string& arg2, const std::string& arg3,
          const std::string& arg4, const std::string& arg5) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg1.c_str(), arg2.c_str(), arg3.c_str(), arg4.c_str(), arg5.c_str());
    NL();
}

void Emit(const std::string& fmt, const std::string& arg1, const std::string& arg2, const std::string& arg3,
          const std::string& arg4, const std::string& arg5, const std::string& arg6) const {
    Indent();
    fprintf(write_file, fmt.c_str(), arg1.c_str(), arg2.c_str(), arg3.c_str(), arg4.c_str(), arg5.c_str(),
            arg6.c_str());
    NL();
}

void NL() const { fputc('\n', write_file); }

// Indents to the current indentation level.
void Indent() const;

// File to which we're generating code.
FILE* write_file;

// Indentation level.
int block_level = 0;
