1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* Copyright 2016 WebAssembly Community Group participants
*
* 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.
*/
#include "src/wast-parser-lexer-shared.h"
#include "src/common.h"
#include "src/error-handler.h"
#include "src/wast-lexer.h"
namespace wabt {
void WastFormatError(ErrorHandler* error_handler,
const Location* loc,
WastLexer* lexer,
const char* format,
va_list args) {
va_list args_copy;
va_copy(args_copy, args);
char fixed_buf[WABT_DEFAULT_SNPRINTF_ALLOCA_BUFSIZE];
char* buffer = fixed_buf;
size_t len = wabt_vsnprintf(fixed_buf, sizeof(fixed_buf), format, args);
if (len + 1 > sizeof(fixed_buf)) {
buffer = static_cast<char*>(alloca(len + 1));
len = wabt_vsnprintf(buffer, len + 1, format, args_copy);
}
LexerSourceLineFinder::SourceLine source_line;
if (loc && lexer) {
size_t source_line_max_length = error_handler->source_line_max_length();
Result result = lexer->line_finder().GetSourceLine(
*loc, source_line_max_length, &source_line);
if (Failed(result)) {
// If this fails, it means that we've probably screwed up the lexer. Blow
// up.
WABT_FATAL("error getting the source line.\n");
}
}
error_handler->OnError(*loc, std::string(buffer), source_line.line,
source_line.column_offset);
va_end(args_copy);
}
} // namespace wabt
|
