diff options
Diffstat (limited to 'src/error.cpp')
| -rw-r--r-- | src/error.cpp | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/src/error.cpp b/src/error.cpp new file mode 100644 index 000000000..1496b4775 --- /dev/null +++ b/src/error.cpp @@ -0,0 +1,411 @@ +struct ErrorCollector { + TokenPos prev; + std::atomic<i64> count; + std::atomic<i64> warning_count; + std::atomic<bool> in_block; + BlockingMutex mutex; + BlockingMutex error_out_mutex; + BlockingMutex string_mutex; + RecursiveMutex block_mutex; + + Array<u8> error_buffer; + Array<String> errors; +}; + +gb_global ErrorCollector global_error_collector; + +#define MAX_ERROR_COLLECTOR_COUNT (36) + + +bool any_errors(void) { + return global_error_collector.count.load() != 0; +} + +void init_global_error_collector(void) { + mutex_init(&global_error_collector.mutex); + mutex_init(&global_error_collector.block_mutex); + mutex_init(&global_error_collector.error_out_mutex); + mutex_init(&global_error_collector.string_mutex); + array_init(&global_error_collector.errors, heap_allocator()); + array_init(&global_error_collector.error_buffer, heap_allocator()); + array_init(&global_file_path_strings, heap_allocator(), 1, 4096); + array_init(&global_files, heap_allocator(), 1, 4096); +} + + +bool set_file_path_string(i32 index, String const &path) { + bool ok = false; + GB_ASSERT(index >= 0); + mutex_lock(&global_error_collector.string_mutex); + + if (index >= global_file_path_strings.count) { + array_resize(&global_file_path_strings, index+1); + } + String prev = global_file_path_strings[index]; + if (prev.len == 0) { + global_file_path_strings[index] = path; + ok = true; + } + + mutex_unlock(&global_error_collector.string_mutex); + return ok; +} + +bool thread_safe_set_ast_file_from_id(i32 index, AstFile *file) { + bool ok = false; + GB_ASSERT(index >= 0); + mutex_lock(&global_error_collector.string_mutex); + + if (index >= global_files.count) { + array_resize(&global_files, index+1); + } + AstFile *prev = global_files[index]; + if (prev == nullptr) { + global_files[index] = file; + ok = true; + } + + mutex_unlock(&global_error_collector.string_mutex); + return ok; +} + +String get_file_path_string(i32 index) { + GB_ASSERT(index >= 0); + mutex_lock(&global_error_collector.string_mutex); + + String path = {}; + if (index < global_file_path_strings.count) { + path = global_file_path_strings[index]; + } + + mutex_unlock(&global_error_collector.string_mutex); + return path; +} + +AstFile *thread_safe_get_ast_file_from_id(i32 index) { + GB_ASSERT(index >= 0); + mutex_lock(&global_error_collector.string_mutex); + + AstFile *file = nullptr; + if (index < global_files.count) { + file = global_files[index]; + } + + mutex_unlock(&global_error_collector.string_mutex); + return file; +} + + + +void begin_error_block(void) { + mutex_lock(&global_error_collector.block_mutex); + global_error_collector.in_block.store(true); +} + +void end_error_block(void) { + if (global_error_collector.error_buffer.count > 0) { + isize n = global_error_collector.error_buffer.count; + u8 *text = gb_alloc_array(permanent_allocator(), u8, n+1); + gb_memmove(text, global_error_collector.error_buffer.data, n); + text[n] = 0; + String s = {text, n}; + array_add(&global_error_collector.errors, s); + global_error_collector.error_buffer.count = 0; + } + + global_error_collector.in_block.store(false); + mutex_unlock(&global_error_collector.block_mutex); +} + +#define ERROR_BLOCK() begin_error_block(); defer (end_error_block()) + + +#define ERROR_OUT_PROC(name) void name(char const *fmt, va_list va) +typedef ERROR_OUT_PROC(ErrorOutProc); + +ERROR_OUT_PROC(default_error_out_va) { + gbFile *f = gb_file_get_standard(gbFileStandard_Error); + + char buf[4096] = {}; + isize len = gb_snprintf_va(buf, gb_size_of(buf), fmt, va); + isize n = len-1; + if (global_error_collector.in_block) { + isize cap = global_error_collector.error_buffer.count + n; + array_reserve(&global_error_collector.error_buffer, cap); + u8 *data = global_error_collector.error_buffer.data + global_error_collector.error_buffer.count; + gb_memmove(data, buf, n); + global_error_collector.error_buffer.count += n; + } else { + mutex_lock(&global_error_collector.error_out_mutex); + { + u8 *text = gb_alloc_array(permanent_allocator(), u8, n+1); + gb_memmove(text, buf, n); + text[n] = 0; + array_add(&global_error_collector.errors, make_string(text, n)); + } + mutex_unlock(&global_error_collector.error_out_mutex); + + } + gb_file_write(f, buf, n); +} + + +ErrorOutProc *error_out_va = default_error_out_va; + +// NOTE: defined in build_settings.cpp +bool global_warnings_as_errors(void); +bool global_ignore_warnings(void); +bool show_error_line(void); +gbString get_file_line_as_string(TokenPos const &pos, i32 *offset); + +void error_out(char const *fmt, ...) { + va_list va; + va_start(va, fmt); + error_out_va(fmt, va); + va_end(va); +} + + +bool show_error_on_line(TokenPos const &pos, TokenPos end) { + if (!show_error_line()) { + return false; + } + + i32 offset = 0; + gbString the_line = get_file_line_as_string(pos, &offset); + defer (gb_string_free(the_line)); + + if (the_line != nullptr) { + String line = make_string(cast(u8 const *)the_line, gb_string_length(the_line)); + + // TODO(bill): This assumes ASCII + + enum { + MAX_LINE_LENGTH = 76, + MAX_TAB_WIDTH = 8, + ELLIPSIS_PADDING = 8 + }; + + error_out("\n\t"); + if (line.len+MAX_TAB_WIDTH+ELLIPSIS_PADDING > MAX_LINE_LENGTH) { + i32 const half_width = MAX_LINE_LENGTH/2; + i32 left = cast(i32)(offset); + i32 right = cast(i32)(line.len - offset); + left = gb_min(left, half_width); + right = gb_min(right, half_width); + + line.text += offset-left; + line.len -= offset+right-left; + + line = string_trim_whitespace(line); + + offset = left + ELLIPSIS_PADDING/2; + + error_out("... %.*s ...", LIT(line)); + } else { + error_out("%.*s", LIT(line)); + } + error_out("\n\t"); + + for (i32 i = 0; i < offset; i++) { + error_out(" "); + } + error_out("^"); + if (end.file_id == pos.file_id) { + if (end.line > pos.line) { + for (i32 i = offset; i < line.len; i++) { + error_out("~"); + } + } else if (end.line == pos.line && end.column > pos.column) { + i32 length = gb_min(end.offset - pos.offset, cast(i32)(line.len-offset)); + for (i32 i = 1; i < length-1; i++) { + error_out("~"); + } + if (length > 1) { + error_out("^"); + } + } + } + + error_out("\n\n"); + return true; + } + return false; +} + +void error_va(TokenPos const &pos, TokenPos end, char const *fmt, va_list va) { + global_error_collector.count.fetch_add(1); + + mutex_lock(&global_error_collector.mutex); + // NOTE(bill): Duplicate error, skip it + if (pos.line == 0) { + error_out("Error: %s\n", gb_bprintf_va(fmt, va)); + } else if (global_error_collector.prev != pos) { + global_error_collector.prev = pos; + error_out("%s %s\n", + token_pos_to_string(pos), + gb_bprintf_va(fmt, va)); + show_error_on_line(pos, end); + } + mutex_unlock(&global_error_collector.mutex); + if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT) { + gb_exit(1); + } +} + +void warning_va(TokenPos const &pos, TokenPos end, char const *fmt, va_list va) { + if (global_warnings_as_errors()) { + error_va(pos, end, fmt, va); + return; + } + global_error_collector.warning_count.fetch_add(1); + mutex_lock(&global_error_collector.mutex); + if (!global_ignore_warnings()) { + // NOTE(bill): Duplicate error, skip it + if (pos.line == 0) { + error_out("Warning: %s\n", gb_bprintf_va(fmt, va)); + } else if (global_error_collector.prev != pos) { + global_error_collector.prev = pos; + error_out("%s Warning: %s\n", + token_pos_to_string(pos), + gb_bprintf_va(fmt, va)); + show_error_on_line(pos, end); + } + } + mutex_unlock(&global_error_collector.mutex); +} + + +void error_line_va(char const *fmt, va_list va) { + error_out_va(fmt, va); +} + +void error_no_newline_va(TokenPos const &pos, char const *fmt, va_list va) { + mutex_lock(&global_error_collector.mutex); + global_error_collector.count++; + // NOTE(bill): Duplicate error, skip it + if (pos.line == 0) { + error_out("Error: %s", gb_bprintf_va(fmt, va)); + } else if (global_error_collector.prev != pos) { + global_error_collector.prev = pos; + error_out("%s %s", + token_pos_to_string(pos), + gb_bprintf_va(fmt, va)); + } + mutex_unlock(&global_error_collector.mutex); + if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT) { + gb_exit(1); + } +} + + +void syntax_error_va(TokenPos const &pos, TokenPos end, char const *fmt, va_list va) { + mutex_lock(&global_error_collector.mutex); + global_error_collector.count++; + // NOTE(bill): Duplicate error, skip it + if (global_error_collector.prev != pos) { + global_error_collector.prev = pos; + error_out("%s Syntax Error: %s\n", + token_pos_to_string(pos), + gb_bprintf_va(fmt, va)); + show_error_on_line(pos, end); + } else if (pos.line == 0) { + error_out("Syntax Error: %s\n", gb_bprintf_va(fmt, va)); + } + + mutex_unlock(&global_error_collector.mutex); + if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT) { + gb_exit(1); + } +} + +void syntax_warning_va(TokenPos const &pos, TokenPos end, char const *fmt, va_list va) { + if (global_warnings_as_errors()) { + syntax_error_va(pos, end, fmt, va); + return; + } + mutex_lock(&global_error_collector.mutex); + global_error_collector.warning_count++; + if (!global_ignore_warnings()) { + // NOTE(bill): Duplicate error, skip it + if (global_error_collector.prev != pos) { + global_error_collector.prev = pos; + error_out("%s Syntax Warning: %s\n", + token_pos_to_string(pos), + gb_bprintf_va(fmt, va)); + show_error_on_line(pos, end); + } else if (pos.line == 0) { + error_out("Warning: %s\n", gb_bprintf_va(fmt, va)); + } + } + mutex_unlock(&global_error_collector.mutex); +} + + + +void warning(Token const &token, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + warning_va(token.pos, {}, fmt, va); + va_end(va); +} + +void error(Token const &token, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + error_va(token.pos, {}, fmt, va); + va_end(va); +} + +void error(TokenPos pos, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + Token token = {}; + token.pos = pos; + error_va(pos, {}, fmt, va); + va_end(va); +} + +void error_line(char const *fmt, ...) { + va_list va; + va_start(va, fmt); + error_line_va(fmt, va); + va_end(va); +} + + +void syntax_error(Token const &token, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + syntax_error_va(token.pos, {}, fmt, va); + va_end(va); +} + +void syntax_error(TokenPos pos, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + syntax_error_va(pos, {}, fmt, va); + va_end(va); +} + +void syntax_warning(Token const &token, char const *fmt, ...) { + va_list va; + va_start(va, fmt); + syntax_warning_va(token.pos, {}, fmt, va); + va_end(va); +} + + +void compiler_error(char const *fmt, ...) { + va_list va; + + va_start(va, fmt); + gb_printf_err("Internal Compiler Error: %s\n", + gb_bprintf_va(fmt, va)); + va_end(va); + gb_exit(1); +} + + + + |