#include <errno.h>
#include <inttypes.h>
#include <babeltrace/list.h>
+#include <babeltrace/babeltrace.h>
#include "ctf-scanner.h"
#include "ctf-parser.h"
#include "ctf-ast.h"
+int yydebug;
+
/*
* TODO: support enum, variant and struct declarations in scopes.
*/
}
}
-#define printf_dbg(fmt, args...) fprintf(stderr, "%s: " fmt, __func__, ## args)
-
int yyparse(struct ctf_scanner *scanner);
int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
-int yylex_destroy(yyscan_t yyscanner) ;
-void yyset_in(FILE * in_str, yyscan_t scanner);
+int yylex_destroy(yyscan_t yyscanner);
+void yyrestart(FILE * in_str, yyscan_t scanner);
int yydebug;
{
struct ctf_scanner_scope *ns;
- printf_dbg("push scope\n");
+ printf_debug("push scope\n");
ns = malloc(sizeof(struct ctf_scanner_scope));
init_scope(ns, scanner->cs);
scanner->cs = ns;
{
struct ctf_scanner_scope *os;
- printf_dbg("pop scope\n");
+ printf_debug("pop scope\n");
os = scanner->cs;
scanner->cs = os->parent;
finalize_scope(os);
int ret;
ret = (int) (long) g_hash_table_lookup(s->types, id);
- printf_dbg("lookup %p %s %d\n", s, id, ret);
+ printf_debug("lookup %p %s %d\n", s, id, ret);
return ret;
}
break;
}
}
- printf_dbg("is type %s %d\n", id, ret);
+ printf_debug("is type %s %d\n", id, ret);
return ret;
}
static void add_type(struct ctf_scanner *scanner, struct gc_string *id)
{
- printf_dbg("add type %s\n", id->s);
+ printf_debug("add type %s\n", id->s);
if (lookup_type(scanner->cs, id->s))
return;
g_hash_table_insert(scanner->cs->types, id->s, id->s);
struct ctf_scanner *scanner;
int ret;
+ yydebug = babeltrace_debug;
+
scanner = malloc(sizeof(*scanner));
if (!scanner)
return NULL;
fprintf(stderr, "yylex_init error\n");
goto cleanup_scanner;
}
- yyset_in(input, scanner);
+ /* Start processing new stream */
+ yyrestart(input, scanner->scanner);
scanner->ast = ctf_ast_alloc();
if (!scanner->ast)
scanner->cs = &scanner->root_scope;
CDS_INIT_LIST_HEAD(&scanner->allocated_strings);
+ if (yydebug)
+ fprintf(stdout, "Scanner input is a%s.\n",
+ isatty(fileno(input)) ? "n interactive tty" :
+ " noninteractive file");
+
return scanner;
cleanup_lexer:
/* %locations */
%parse-param {struct ctf_scanner *scanner}
%lex-param {struct ctf_scanner *scanner}
+/*
+ * Expect two shift-reduce conflicts. Caused by enum name-opt : type {}
+ * vs struct { int :value; } (unnamed bit-field). The default is to
+ * shift, so whenever we encounter an enumeration, we are doing the
+ * proper thing (shift). It is illegal to declare an enumeration
+ * "bit-field", so it is OK if this situation ends up in a parsing
+ * error.
+ */
+%expect 2
%start file
%token CHARACTER_CONSTANT_START SQUOTE STRING_LITERAL_START DQUOTE ESCSEQ CHAR_STRING_TOKEN LSBRAC RSBRAC LPAREN RPAREN LBRAC RBRAC RARROW STAR PLUS MINUS LT GT TYPEASSIGN COLON SEMICOLON DOTDOTDOT DOT EQUAL COMMA CONST CHAR DOUBLE ENUM EVENT FLOATING_POINT FLOAT INTEGER INT LONG SHORT SIGNED STREAM STRING STRUCT TRACE TYPEALIAS TYPEDEF UNSIGNED VARIANT VOID _BOOL _COMPLEX _IMAGINARY DECIMAL_CONSTANT OCTAL_CONSTANT HEXADECIMAL_CONSTANT
%token <gs> IDENTIFIER ID_TYPE
%type <n> event_declaration
%type <n> stream_declaration
%type <n> trace_declaration
+%type <n> integer_declaration_specifiers
%type <n> declaration_specifiers
%type <n> alias_declaration_specifiers
%type <n> type_declarator_list
+%type <n> integer_type_specifier
%type <n> type_specifier
%type <n> struct_type_specifier
%type <n> variant_type_specifier
{ pop_scope(scanner); }
;
+integer_declaration_specifiers:
+ CONST
+ {
+ struct ctf_node *node;
+
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+ node = make_node(scanner, NODE_TYPE_SPECIFIER);
+ node->u.type_specifier.type = TYPESPEC_CONST;
+ cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+ }
+ | integer_type_specifier
+ {
+ struct ctf_node *node;
+
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+ node = $1;
+ cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+ }
+ | integer_declaration_specifiers CONST
+ {
+ struct ctf_node *node;
+
+ $$ = $1;
+ node = make_node(scanner, NODE_TYPE_SPECIFIER);
+ node->u.type_specifier.type = TYPESPEC_CONST;
+ cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+ }
+ | integer_declaration_specifiers integer_type_specifier
+ {
+ $$ = $1;
+ cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
+ }
+ ;
+
declaration_specifiers:
CONST
{
}
;
+integer_type_specifier:
+ CHAR
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_CHAR;
+ }
+ | SHORT
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_SHORT;
+ }
+ | INT
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_INT;
+ }
+ | LONG
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_LONG;
+ }
+ | SIGNED
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_SIGNED;
+ }
+ | UNSIGNED
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
+ }
+ | _BOOL
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_BOOL;
+ }
+ | ID_TYPE
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
+ $$->u.type_specifier.id_type = yylval.gs->s;
+ }
+ | INTEGER LBRAC RBRAC
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_INTEGER;
+ $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
+ }
+ | INTEGER LBRAC ctf_assignment_expression_list RBRAC
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_INTEGER;
+ $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
+ if (set_parent_node($3, $$->u.type_specifier.node))
+ reparent_error(scanner, "integer reparent error");
+ }
+ ;
+
type_specifier:
VOID
{
if (set_parent_node($3, $$->u.type_specifier.node))
reparent_error(scanner, "integer reparent error");
}
+ | STRING
+ {
+ $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+ $$->u.type_specifier.type = TYPESPEC_STRING;
+ $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
+ }
| STRING LBRAC RBRAC
{
$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
$$->u._enum.has_body = 1;
_cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+ | COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
($$)->u._enum.container_type = $2;
- _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
}
| IDENTIFIER LBRAC enumerator_list RBRAC
{
$$->u._enum.enum_id = $1->s;
_cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+ | IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
$$->u._enum.enum_id = $1->s;
($$)->u._enum.container_type = $3;
- _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
}
| ID_TYPE LBRAC enumerator_list RBRAC
{
$$->u._enum.enum_id = $1->s;
_cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+ | ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
$$->u._enum.enum_id = $1->s;
($$)->u._enum.container_type = $3;
- _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
}
| LBRAC enumerator_list COMMA RBRAC
{
$$->u._enum.has_body = 1;
_cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+ | COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
($$)->u._enum.container_type = $2;
- _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
}
| IDENTIFIER LBRAC enumerator_list COMMA RBRAC
{
$$->u._enum.enum_id = $1->s;
_cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+ | IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
$$->u._enum.enum_id = $1->s;
($$)->u._enum.container_type = $3;
- _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
}
| IDENTIFIER
{
$$->u._enum.has_body = 0;
$$->u._enum.enum_id = $1->s;
}
- | IDENTIFIER LT declaration_specifiers GT
- {
- $$ = make_node(scanner, NODE_ENUM);
- $$->u._enum.has_body = 0;
- $$->u._enum.enum_id = $1->s;
- ($$)->u._enum.container_type = $3;
- }
| ID_TYPE LBRAC enumerator_list COMMA RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.enum_id = $1->s;
_cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
}
- | ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+ | ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
{
$$ = make_node(scanner, NODE_ENUM);
$$->u._enum.has_body = 1;
$$->u._enum.enum_id = $1->s;
($$)->u._enum.container_type = $3;
- _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+ _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
}
| ID_TYPE
{
$$->u._enum.has_body = 0;
$$->u._enum.enum_id = $1->s;
}
- | ID_TYPE LT declaration_specifiers GT
- {
- $$ = make_node(scanner, NODE_ENUM);
- $$->u._enum.has_body = 0;
- $$->u._enum.enum_id = $1->s;
- ($$)->u._enum.container_type = $3;
- }
;
struct_or_variant_declaration_list:
projects / babeltrace.git / blobdiff