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/*
* 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 "wast-parser-lexer-shared.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <string>
namespace wabt {
void wast_parser_error(Location* loc,
WastLexer* lexer,
WastParser* parser,
const char* format,
...) {
parser->errors++;
va_list args;
va_start(args, format);
wast_format_error(parser->error_handler, loc, lexer, format, args);
va_end(args);
}
void wast_format_error(SourceErrorHandler* error_handler,
const struct 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);
}
char* source_line = nullptr;
size_t source_line_length = 0;
int source_line_column_offset = 0;
size_t source_line_max_length = error_handler->source_line_max_length();
if (loc && lexer) {
source_line = static_cast<char*>(alloca(source_line_max_length + 1));
Result result = wast_lexer_get_source_line(
lexer, loc, source_line_max_length, source_line, &source_line_length,
&source_line_column_offset);
if (WABT_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),
std::string(source_line, source_line_length),
source_line_column_offset);
va_end(args_copy);
}
void destroy_text_list(TextList* text_list) {
TextListNode* node = text_list->first;
while (node) {
TextListNode* next = node->next;
destroy_string_slice(&node->text);
delete node;
node = next;
}
}
FuncField::FuncField()
: type(FuncFieldType::Exprs), first_expr(nullptr), next(nullptr) {}
FuncField::~FuncField() {
switch (type) {
case FuncFieldType::Exprs:
destroy_expr_list(first_expr);
break;
case FuncFieldType::ParamTypes:
case FuncFieldType::LocalTypes:
case FuncFieldType::ResultTypes:
delete types;
break;
case FuncFieldType::BoundParam:
case FuncFieldType::BoundLocal:
destroy_string_slice(&bound_type.name);
break;
}
}
void destroy_func_fields(FuncField* func_field) {
/* destroy the entire linked-list */
while (func_field) {
FuncField* next_func_field = func_field->next;
delete func_field;
func_field = next_func_field;
}
}
} // namespace wabt
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