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7b694931ef
* Suppress expected, benign warnings from Bison and Flex generated code. * Trick::MessageThreadedCout::thread_body should return NULL.
147 lines
3.8 KiB
Plaintext
147 lines
3.8 KiB
Plaintext
%name-prefix="ADEF_"
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%pure-parser
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%locations
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%parse-param {Trick::ADefParseContext* context}
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%lex-param { void* scanner }
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%{
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/*
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%debug
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%error-verbose
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*/
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#include <iostream>
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#include <sstream>
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#include <stdlib.h>
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#include <string.h>
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#include "trick/vval.h"
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#include "trick/value.h"
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#include "trick/var.h"
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#include "trick/ADefParseContext.hh"
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#include "adef_parser.tab.h"
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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using namespace std;
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int ADEF_lex( YYSTYPE* lvalp, YYLTYPE* llocp, void* scanner );
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void ADEF_error( YYLTYPE* locp, Trick::ADefParseContext* context, const char* err) {
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std::stringstream message;
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message << "adef_parser PARSE-ERROR " << locp->first_line << ": " << err << ".";
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Trick::MemoryManager::emitError(message.str());
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}
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#define scanner context->scanner
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#ifdef YYDEBUG
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#undef YYDEBUG
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#endif
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#define YYDEBUG 1
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%}
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%start alloc_definition
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%union {
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char* sval ;
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int ival ;
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VALUE_LIST* value_list ;
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}
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%token <sval> NAME
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%token <ival> TYPE
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%token <ival> I_CON
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%token END 0 "End of file"
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%type <value_list> dim_list
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%type <ival> pointers
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%type <sval> opt_name user_defined_type
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%%
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alloc_definition: TYPE pointers opt_name dim_list {
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context->type = (TRICK_TYPE)$1;
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context->user_type_name = "";
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context->n_stars = $2;
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if ($3 == NULL) {
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context->var_name = "";
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} else {
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context->var_name = $3;
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free($3) ;
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}
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}
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| user_defined_type pointers opt_name dim_list {
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// TRICK_OPAQUE_TYPE means that the type is a user-defined type,
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// the details of which will be determined later.
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context->type = TRICK_OPAQUE_TYPE;
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context->user_type_name = $1;
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free($1) ;
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context->n_stars = $2;
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if ($3 == NULL) {
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context->var_name = "";
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} else {
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context->var_name = $3;
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free($3) ;
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}
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}
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;
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opt_name: { $$ = NULL; }
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| NAME { $$ = $1; }
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;
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pointers: {
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/*
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* pointers counts how many pointer dims there are in a variable declaration
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* the first rule handles no pointers, the next handles 1 or more pointers
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*/
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$$ = 0 ;
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}
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| pointers '*' {
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$$++ ;
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}
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;
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user_defined_type: NAME {
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$$ = $1;
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}
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| user_defined_type ':' ':' NAME {
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size_t len;
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len = strlen($1) + strlen($4) + (size_t)3;
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$$ = (char*)malloc( (size_t)len);
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strcpy($$, $1);
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strcat($$, "::");
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strcat($$, $4);
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free($1);
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free($4);
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}
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;
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dim_list: {
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/*
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* These two rules handle C style array indexing. This rule
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* handles no indexes, the second rule handles one or more other
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* indexes.
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*/
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int ii ;
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context->n_cdims = 0;
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for ( ii = 0 ; ii < TRICK_MAX_INDEX ; ii++ ) {
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context->cdims[ii] = 0;
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}
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}
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| dim_list '[' I_CON ']' {
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if (context->n_cdims >= TRICK_MAX_INDEX ) {
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context->error_str = "Too many array dimensions." ;
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return(MM_TOO_MANY_ARRAY_DIMENSIONS) ;
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}
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context->cdims[ context->n_cdims ] = $3 ;
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context->n_cdims++;
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};
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%%
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