/*!
@file verilog_parser_wrapper.c
@brief Contains implementations of functions declared in verilog_parser.h
*/

#include <verilogparser/verilog_ast.h>
#include <verilogparser/verilog_parser.h>

//! This is defined in the generated bison parser code.
extern int yyparse();

void    verilog_parser_init()
{
    if(yy_preproc == NULL) 
    {
        //printf("Added new preprocessor context\n");
        yy_preproc = verilog_new_preprocessor_context();
    }
    if(yy_verilog_source_tree == NULL)
    {
        //printf("Added new source tree\n");
        yy_verilog_source_tree = verilog_new_source_tree();
    }
}

/*!
@brief Perform a parsing operation on the currently selected buffer.
*/
int     verilog_parse_file(FILE * to_parse)
{
    YY_BUFFER_STATE new_buffer = yy_create_buffer(to_parse, YY_BUF_SIZE);
    yy_switch_to_buffer(new_buffer);
    yylineno = 0; // Reset the global line counter, we are in a new file!
    
    int result = yyparse();
    return result;
}

/*!
@brief Perform a parsing operation on the supplied in-memory string.
*/
int     verilog_parse_string(char * to_parse, int length)
{
    YY_BUFFER_STATE new_buffer = yy_scan_bytes(to_parse, length);
    yy_switch_to_buffer(new_buffer);
    
    int result = yyparse();
    return result;
}


/*!
@brief Perform a parsing operation on the supplied in-memory string.
*/
int     verilog_parse_buffer(char * to_parse, int length)
{
    YY_BUFFER_STATE new_buffer = yy_scan_buffer(to_parse, length);
    yy_switch_to_buffer(new_buffer);
    
    int result = yyparse();
    return result;
}