58ba4c3b4c
Previously, a failed malloc/realloc would throw an exception, which was not caught. I think it's better to keep the parser free from NLR (exception throwing), hence this patch.
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
// these functions are separate from parse.c to keep parser independent of mp_obj_t
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#include <stdint.h>
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#include <stdio.h>
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "lexer.h"
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#include "parse.h"
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#include "obj.h"
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#include "parsehelper.h"
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#define STR_MEMORY "parser could not allocate enough memory"
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#define STR_UNEXPECTED_INDENT "unexpected indent"
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#define STR_UNMATCHED_UNINDENT "unindent does not match any outer indentation level"
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#define STR_INVALID_SYNTAX "invalid syntax"
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void mp_parse_show_exception(mp_lexer_t *lex, mp_parse_error_kind_t parse_error_kind) {
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printf(" File \"%s\", line %d, column %d\n", qstr_str(mp_lexer_source_name(lex)), mp_lexer_cur(lex)->src_line, mp_lexer_cur(lex)->src_column);
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switch (parse_error_kind) {
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case MP_PARSE_ERROR_MEMORY:
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printf("MemoryError: %s\n", STR_MEMORY);
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break;
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case MP_PARSE_ERROR_UNEXPECTED_INDENT:
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printf("IndentationError: %s\n", STR_UNEXPECTED_INDENT);
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break;
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case MP_PARSE_ERROR_UNMATCHED_UNINDENT:
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printf("IndentationError: %s\n", STR_UNMATCHED_UNINDENT);
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break;
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case MP_PARSE_ERROR_INVALID_SYNTAX:
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default:
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printf("SyntaxError: %s\n", STR_INVALID_SYNTAX);
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break;
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}
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}
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mp_obj_t mp_parse_make_exception(mp_parse_error_kind_t parse_error_kind) {
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// TODO add source file and line number to exception?
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switch (parse_error_kind) {
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case MP_PARSE_ERROR_MEMORY:
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return mp_obj_new_exception_msg(&mp_type_MemoryError, STR_MEMORY);
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case MP_PARSE_ERROR_UNEXPECTED_INDENT:
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return mp_obj_new_exception_msg(&mp_type_IndentationError, STR_UNEXPECTED_INDENT);
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case MP_PARSE_ERROR_UNMATCHED_UNINDENT:
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return mp_obj_new_exception_msg(&mp_type_IndentationError, STR_UNMATCHED_UNINDENT);
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case MP_PARSE_ERROR_INVALID_SYNTAX:
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default:
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return mp_obj_new_exception_msg(&mp_type_SyntaxError, STR_INVALID_SYNTAX);
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}
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}
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