jerryscript/jerry-core/parser/js/syntax-errors.h
Ruben Ayrapetyan a4e54e736e Support syntax error feedback in parser.
Now, parser correctly finishes parse procedure if syntax of source code is incorrect (syntax correctness is indicated using return value):
 - parser-internal memory management is performed using jsp_mm_alloc / jsp_mm_free;
 - upon detection of incorrect syntax, all parser-allocated memory regions are deallocated using jsp_mm_free_all and parse finishes with corresponding return value.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
2015-06-19 17:05:15 +03:00

89 lines
2.7 KiB
C

/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SYNTAX_ERRORS_H
#define SYNTAX_ERRORS_H
#include "jrt-libc-includes.h"
#include "opcodes-dumper.h"
#include "lexer.h"
#ifndef JERRY_NDEBUG
#define PARSE_ERROR_PRINT_PLACE(TYPE, LOCUS) do { \
size_t line, column; \
lexer_locus_to_line_and_column ((locus) (LOCUS), &line, &column); \
lexer_dump_line (line); \
printf ("\n"); \
for (size_t i = 0; i < column; i++) { \
putchar (' '); \
} \
printf ("^\n"); \
printf ("%s: Ln %lu, Col %lu: ", TYPE, (unsigned long) (line + 1), (unsigned long) (column + 1)); \
} while (0)
#define PARSE_ERROR(MESSAGE, LOCUS) do { \
PARSE_ERROR_PRINT_PLACE ("ERROR", LOCUS); \
printf ("%s\n", MESSAGE); \
syntax_raise_error (); \
} while (0)
#define PARSE_ERROR_VARG(MESSAGE, LOCUS, ...) do { \
PARSE_ERROR_PRINT_PLACE ("ERROR", LOCUS); \
printf (MESSAGE, __VA_ARGS__); \
printf ("\n"); \
syntax_raise_error (); \
} while (0)
#define PARSE_SORRY(MESSAGE, LOCUS) do { \
PARSE_ERROR_PRINT_PLACE ("SORRY, Unimplemented", LOCUS); \
printf ("%s\n", MESSAGE); \
JERRY_UNIMPLEMENTED ("Unimplemented parser feature."); \
} while (0)
#else /* JERRY_NDEBUG */
#define PARSE_ERROR(MESSAGE, LOCUS) do { \
syntax_raise_error (); \
} while (0)
#define PARSE_ERROR_VARG(MESSAGE, LOCUS, ...) do { \
syntax_raise_error (); \
} while (0)
#define PARSE_SORRY(MESSAGE, LOCUS) do { \
JERRY_UNIMPLEMENTED ("Unimplemented parser feature."); \
} while (0)
#endif /* JERRY_NDEBUG */
typedef enum __attr_packed___
{
PROP_DATA,
PROP_SET,
PROP_GET,
VARG
} prop_type;
void syntax_init (void);
void syntax_free (void);
void syntax_start_checking_of_prop_names (void);
void syntax_add_prop_name (operand, prop_type);
void syntax_check_for_duplication_of_prop_names (bool, locus);
void syntax_start_checking_of_vargs (void);
void syntax_add_varg (operand);
void syntax_check_for_eval_and_arguments_in_strict_mode (operand, bool, locus);
void syntax_check_for_syntax_errors_in_formal_param_list (bool, locus);
void syntax_check_delete (bool, locus);
jmp_buf * syntax_get_syntax_error_longjmp_label (void);
void __attribute__((noreturn)) syntax_raise_error (void);
#endif /* SYNTAX_ERRORS_H */