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Copy patherror.cpp
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1033 lines (857 loc) · 28.6 KB
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enum ErrorValueKind : u32 {
ErrorValue_Error,
ErrorValue_Warning,
};
struct ErrorValue {
ErrorValueKind kind;
TokenPos pos;
TokenPos end;
Array<u8> msg;
bool seen_newline;
};
struct ErrorCollector {
// TokenPos prev; // no point collecting because of the mulithreaded nature
std::atomic<i64> count;
std::atomic<i64> warning_count;
std::atomic<bool> in_block;
RecursiveMutex mutex;
BlockingMutex path_mutex;
Array<ErrorValue> error_values;
ErrorValue curr_error_value;
std::atomic<bool> curr_error_value_set;
};
gb_global ErrorCollector global_error_collector;
gb_internal void push_error_value(TokenPos const &pos, ErrorValueKind kind = ErrorValue_Error) {
GB_ASSERT_MSG(global_error_collector.curr_error_value_set.load() == false, "Possible race condition in error handling system, please report this with an issue");
ErrorValue ev = {kind, pos};
ev.msg.allocator = heap_allocator();
global_error_collector.curr_error_value = ev;
global_error_collector.curr_error_value_set.store(true);
}
gb_internal void pop_error_value(void) {
mutex_lock(&global_error_collector.mutex);
if (global_error_collector.curr_error_value_set.load()) {
array_add(&global_error_collector.error_values, global_error_collector.curr_error_value);
global_error_collector.curr_error_value = {};
global_error_collector.curr_error_value_set.store(false);
}
mutex_unlock(&global_error_collector.mutex);
}
gb_internal void try_pop_error_value(void) {
if (!global_error_collector.in_block.load()) {
pop_error_value();
}
}
gb_internal ErrorValue *get_error_value(void) {
GB_ASSERT_MSG(global_error_collector.curr_error_value_set.load() == true, "Possible race condition in error handling system, please report this with an issue");
return &global_error_collector.curr_error_value;
}
gb_internal bool any_errors(void) {
return global_error_collector.count.load() != 0;
}
gb_internal bool any_warnings(void) {
return global_error_collector.warning_count.load() != 0;
}
gb_internal void init_global_error_collector(void) {
array_init(&global_error_collector.error_values, heap_allocator());
array_init(&global_file_path_strings, heap_allocator(), 1, 4096);
array_init(&global_files, heap_allocator(), 1, 4096);
}
gb_internal isize MAX_ERROR_COLLECTOR_COUNT(void);
// temporary
// defined in build_settings.cpp
gb_internal char *token_pos_to_string(TokenPos const &pos);
gb_internal bool set_file_path_string(i32 index, String const &path) {
bool ok = false;
GB_ASSERT(index >= 0);
// mutex_lock(&global_error_collector.path_mutex);
mutex_lock(&global_files_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_files_mutex);
// mutex_unlock(&global_error_collector.path_mutex);
return ok;
}
gb_internal bool thread_safe_set_ast_file_from_id(i32 index, AstFile *file) {
bool ok = false;
GB_ASSERT(index >= 0);
// mutex_lock(&global_error_collector.path_mutex);
mutex_lock(&global_files_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_files_mutex);
// mutex_unlock(&global_error_collector.path_mutex);
return ok;
}
gb_internal String get_file_path_string(i32 index) {
GB_ASSERT(index >= 0);
// mutex_lock(&global_error_collector.path_mutex);
mutex_lock(&global_files_mutex);
String path = {};
if (index < global_file_path_strings.count) {
path = global_file_path_strings[index];
}
mutex_unlock(&global_files_mutex);
// mutex_unlock(&global_error_collector.path_mutex);
return path;
}
gb_internal AstFile *thread_safe_get_ast_file_from_id(i32 index) {
GB_ASSERT(index >= 0);
// mutex_lock(&global_error_collector.path_mutex);
mutex_lock(&global_files_mutex);
AstFile *file = nullptr;
if (index < global_files.count) {
file = global_files[index];
}
mutex_unlock(&global_files_mutex);
// mutex_unlock(&global_error_collector.path_mutex);
return file;
}
// use AFTER PARSER
gb_internal AstFile *thread_unsafe_get_ast_file_from_id(i32 index) {
GB_ASSERT(index >= 0);
AstFile *file = nullptr;
if (index < global_files.count) {
file = global_files[index];
}
return file;
}
// NOTE: defined in build_settings.cpp
gb_internal bool global_warnings_as_errors(void);
gb_internal bool global_ignore_warnings(void);
gb_internal bool show_error_line(void);
gb_internal bool terse_errors(void);
gb_internal bool json_errors(void);
gb_internal bool has_ansi_terminal_colours(void);
gb_internal gbString get_file_line_as_string(TokenPos const &pos, i32 *offset);
gb_internal void warning(Token const &token, char const *fmt, ...);
gb_internal void error(Token const &token, char const *fmt, ...);
gb_internal void error(TokenPos pos, char const *fmt, ...);
gb_internal void error_line(char const *fmt, ...);
gb_internal void syntax_error(Token const &token, char const *fmt, ...);
gb_internal void syntax_error(TokenPos pos, char const *fmt, ...);
gb_internal void syntax_warning(Token const &token, char const *fmt, ...);
gb_internal void compiler_error(char const *fmt, ...);
gb_internal void print_all_errors(void);
#define ERROR_OUT_PROC(name) void name(char const *fmt, va_list va)
typedef ERROR_OUT_PROC(ErrorOutProc);
gb_internal ERROR_OUT_PROC(default_error_out_va) {
char buf[4096] = {};
isize len = gb_snprintf_va(buf, gb_size_of(buf), fmt, va);
isize n = len-1;
if (n > 0) {
ErrorValue *ev = get_error_value();
if (terse_errors()) {
for (isize i = 0; i < n && !ev->seen_newline; i++) {
u8 c = cast(u8)buf[i];
if (c == '\n') {
ev->seen_newline = true;
}
array_add(&ev->msg, c);
}
} else {
array_add_elems(&ev->msg, (u8 *)buf, n);
}
}
}
gb_global ErrorOutProc *error_out_va = default_error_out_va;
gb_internal void begin_error_block(void) {
mutex_lock(&global_error_collector.mutex);
global_error_collector.in_block.store(true);
}
gb_internal void end_error_block(void) {
pop_error_value();
global_error_collector.in_block.store(false);
mutex_unlock(&global_error_collector.mutex);
}
#define ERROR_BLOCK() begin_error_block(); defer (end_error_block())
gb_internal void error_out(char const *fmt, ...) {
va_list va;
va_start(va, fmt);
error_out_va(fmt, va);
va_end(va);
}
enum TerminalStyle {
TerminalStyle_Normal,
TerminalStyle_Bold,
TerminalStyle_Underline,
};
enum TerminalColour {
TerminalColour_White,
TerminalColour_Red,
TerminalColour_Yellow,
TerminalColour_Green,
TerminalColour_Cyan,
TerminalColour_Blue,
TerminalColour_Purple,
TerminalColour_Black,
TerminalColour_Grey,
};
gb_internal void terminal_set_colours(TerminalStyle style, TerminalColour foreground) {
if (has_ansi_terminal_colours()) {
char const *ss = "0";
switch (style) {
case TerminalStyle_Normal: ss = "0"; break;
case TerminalStyle_Bold: ss = "1"; break;
case TerminalStyle_Underline: ss = "4"; break;
}
switch (foreground) {
case TerminalColour_White: error_out("\x1b[%s;37m", ss); break;
case TerminalColour_Red: error_out("\x1b[%s;31m", ss); break;
case TerminalColour_Yellow: error_out("\x1b[%s;33m", ss); break;
case TerminalColour_Green: error_out("\x1b[%s;32m", ss); break;
case TerminalColour_Cyan: error_out("\x1b[%s;36m", ss); break;
case TerminalColour_Blue: error_out("\x1b[%s;34m", ss); break;
case TerminalColour_Purple: error_out("\x1b[%s;35m", ss); break;
case TerminalColour_Black: error_out("\x1b[%s;30m", ss); break;
case TerminalColour_Grey: error_out("\x1b[%s;90m", ss); break;
}
}
}
gb_internal void terminal_reset_colours(void) {
if (has_ansi_terminal_colours()) {
error_out("\x1b[0m");
}
}
gb_internal isize show_error_on_line(TokenPos const &pos, TokenPos end) {
get_error_value()->end = end;
if (!show_error_line()) {
return -1;
}
i32 error_start_index_bytes = 0;
gbString the_line = get_file_line_as_string(pos, &error_start_index_bytes);
defer (gb_string_free(the_line));
if (the_line == nullptr || gb_string_length(the_line) == 0) {
terminal_set_colours(TerminalStyle_Normal, TerminalColour_Grey);
error_out("\t( empty line )\n");
terminal_reset_colours();
if (the_line == nullptr) {
return -1;
} else {
return cast(isize)error_start_index_bytes;
}
}
// These two will be used like an Odin slice later.
char const *line_text = the_line;
i32 line_length_bytes = cast(i32)gb_string_length(the_line);
ucg_grapheme* graphemes;
i32 line_length_runes = 0;
i32 line_length_graphemes = 0;
i32 line_width = 0;
int ucg_result = ucg_decode_grapheme_clusters(
permanent_allocator(), (const uint8_t*)line_text, line_length_bytes,
&graphemes, &line_length_runes, &line_length_graphemes, &line_width);
if (ucg_result < 0) {
// There was a UTF-8 parsing error.
// Insert a dummy grapheme so the start of the invalid rune can be pointed at.
graphemes = (ucg_grapheme*)gb_resize(permanent_allocator(),
graphemes,
sizeof(ucg_grapheme) * (line_length_graphemes),
sizeof(ucg_grapheme) * (1 + line_length_graphemes));
ucg_grapheme append = {
error_start_index_bytes,
line_length_runes,
1,
};
graphemes[line_length_graphemes] = append;
}
// The units below are counted in visual, monospace cells.
enum {
MAX_LINE_LENGTH = 80,
MAX_TAB_WIDTH = 8,
ELLIPSIS_PADDING = 8, // `... ...`
MIN_LEFT_VIEW = 8,
// A rough estimate of how many characters we'll insert, at most:
MAX_INSERTED_WIDTH = MAX_TAB_WIDTH + ELLIPSIS_PADDING,
MAX_LINE_LENGTH_PADDED = MAX_LINE_LENGTH - MAX_INSERTED_WIDTH,
};
i32 error_start_index_graphemes = 0;
for (i32 i = 0; i < line_length_graphemes; i += 1) {
if (graphemes[i].byte_index == error_start_index_bytes) {
error_start_index_graphemes = i;
break;
}
}
if (error_start_index_graphemes == 0 && error_start_index_bytes != 0 && line_length_graphemes != 0) {
// The error index in graphemes was not found, but we did find a valid Unicode string.
//
// This is an edge case where the error is sitting on a newline or the
// end of the line, as that is the only location we could not have checked.
error_start_index_graphemes = line_length_graphemes;
}
error_out("\t");
bool show_right_ellipsis = false;
i32 squiggle_padding = 0;
i32 window_open_bytes = 0;
i32 window_close_bytes = 0;
if (line_width > MAX_LINE_LENGTH_PADDED) {
// Now that we know the line is over the length limit, we have to
// compose a visual window in which to display the error.
i32 window_size_left = 0;
i32 window_size_right = 0;
i32 window_open_graphemes = 0;
for (i32 i = error_start_index_graphemes - 1; i > 0; i -= 1) {
window_size_left += graphemes[i].width;
if (window_size_left >= MIN_LEFT_VIEW) {
window_open_graphemes = i;
window_open_bytes = graphemes[i].byte_index;
break;
}
}
for (i32 i = error_start_index_graphemes; i < line_length_graphemes; i += 1) {
window_size_right += graphemes[i].width;
if (window_size_right >= MAX_LINE_LENGTH_PADDED - MIN_LEFT_VIEW) {
window_close_bytes = graphemes[i].byte_index;
break;
}
}
if (window_close_bytes == 0) {
// The window ends at the end of the line.
window_close_bytes = line_length_bytes;
}
if (window_size_right < MAX_LINE_LENGTH_PADDED - MIN_LEFT_VIEW) {
// Hit the end of the string early on the right side; expand backwards.
for (i32 i = window_open_graphemes - 1; i > 0; i -= 1) {
window_size_left += graphemes[i].width;
if (window_size_left + window_size_right >= MAX_LINE_LENGTH_PADDED) {
window_open_graphemes = i;
window_open_bytes = graphemes[i].byte_index;
break;
}
}
}
GB_ASSERT_MSG(window_close_bytes >= window_open_bytes, "Error line truncation window has wrong byte indices. (open, close: %i, %i)", window_open_bytes, window_close_bytes);
if (window_close_bytes != line_length_bytes) {
show_right_ellipsis = true;
}
// Close the window, going left.
line_length_bytes = window_close_bytes;
// Adjust the slice of text. In Odin, this would be:
// `line_text = line_text[window_left_bytes:]`
line_text += window_open_bytes;
line_length_bytes -= window_open_bytes;
GB_ASSERT_MSG(line_length_bytes >= 0, "Bounds-checking error: line_length_bytes");
if (window_open_bytes > 0) {
error_out("... ");
squiggle_padding += 4;
}
} else {
// No truncation needed.
window_open_bytes = 0;
window_close_bytes = line_length_bytes;
}
for (i32 i = error_start_index_graphemes; i > 0; i -= 1) {
if (graphemes[i].byte_index == window_open_bytes) {
break;
}
squiggle_padding += graphemes[i].width;
}
// Start printing code.
terminal_set_colours(TerminalStyle_Normal, TerminalColour_White);
error_out("%.*s", line_length_bytes, line_text);
i32 squiggle_length = 0;
bool trailing_squiggle = false;
if (end.file_id == pos.file_id) {
// The error has an endpoint.
if (end.line > pos.line) {
// Error goes to next line.
// Always show the ellipsis in this case
show_right_ellipsis = true;
for (i32 i = error_start_index_graphemes; i < line_length_graphemes; i += 1) {
squiggle_length += graphemes[i].width;
trailing_squiggle = true;
}
} else if (end.line == pos.line && end.column > pos.column) {
// Error terminates before line end.
i32 adjusted_end_index = graphemes[error_start_index_graphemes].byte_index + end.column - pos.column;
for (i32 i = error_start_index_graphemes; i < line_length_graphemes; i += 1) {
if (graphemes[i].byte_index >= adjusted_end_index) {
break;
} else if (graphemes[i].byte_index >= window_close_bytes) {
trailing_squiggle = true;
break;
}
squiggle_length += graphemes[i].width;
}
}
} else {
// The error is at one spot; no range known.
squiggle_length = 1;
}
if (show_right_ellipsis) {
error_out(" ...");
}
error_out("\n\t");
for (i32 i = squiggle_padding; i > 0; i -= 1) {
error_out(" ");
}
terminal_set_colours(TerminalStyle_Bold, TerminalColour_Green);
if (squiggle_length > 0) {
error_out("^");
squiggle_length -= 1;
}
for (/**/; squiggle_length > 1; squiggle_length -= 1) {
error_out("~");
}
if (squiggle_length > 0) {
if (trailing_squiggle) {
error_out("~ ...");
} else {
error_out("^");
}
}
// NOTE(Feoramund): Specifically print a newline, then reset colours,
// instead of the other way around. Otherwise the printing mechanism
// will collapse the newline for reasons currently beyond my ken.
error_out("\n");
terminal_reset_colours();
return squiggle_padding;
}
gb_internal void error_out_empty(void) {
error_out("");
}
gb_internal void error_out_pos(TokenPos pos) {
terminal_set_colours(TerminalStyle_Bold, TerminalColour_White);
error_out("%s ", token_pos_to_string(pos));
terminal_reset_colours();
}
gb_internal void error_out_coloured(char const *str, TerminalStyle style, TerminalColour foreground) {
terminal_set_colours(style, foreground);
error_out(str);
terminal_reset_colours();
}
gb_internal 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);
if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT()) {
print_all_errors();
gb_exit(1);
}
push_error_value(pos, ErrorValue_Error);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Error: ", TerminalStyle_Normal, TerminalColour_Red);
error_out_va(fmt, va);
error_out("\n");
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
error_out_coloured("Error: ", TerminalStyle_Normal, TerminalColour_Red);
}
error_out_va(fmt, va);
error_out("\n");
show_error_on_line(pos, end);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal 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;
}
if (global_ignore_warnings()) {
return;
}
global_error_collector.warning_count.fetch_add(1);
mutex_lock(&global_error_collector.mutex);
push_error_value(pos, ErrorValue_Warning);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Warning: ", TerminalStyle_Normal, TerminalColour_Yellow);
error_out_va(fmt, va);
error_out("\n");
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
error_out_coloured("Warning: ", TerminalStyle_Normal, TerminalColour_Yellow);
}
error_out_va(fmt, va);
error_out("\n");
show_error_on_line(pos, end);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal void error_line_va(char const *fmt, va_list va) {
error_out_va(fmt, va);
}
gb_internal void error_no_newline_va(TokenPos const &pos, char const *fmt, va_list va) {
global_error_collector.count.fetch_add(1);
mutex_lock(&global_error_collector.mutex);
if (global_error_collector.count.load() > MAX_ERROR_COLLECTOR_COUNT()) {
print_all_errors();
gb_exit(1);
}
push_error_value(pos, ErrorValue_Error);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Error: ", TerminalStyle_Normal, TerminalColour_Red);
error_out_va(fmt, va);
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
}
if (has_ansi_terminal_colours()) {
error_out_coloured("Error: ", TerminalStyle_Normal, TerminalColour_Red);
}
error_out_va(fmt, va);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal void syntax_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);
if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT()) {
print_all_errors();
gb_exit(1);
}
push_error_value(pos, ErrorValue_Warning);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Syntax Error: ", TerminalStyle_Normal, TerminalColour_Red);
error_out_va(fmt, va);
error_out("\n");
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
}
error_out_coloured("Syntax Error: ", TerminalStyle_Normal, TerminalColour_Red);
error_out_va(fmt, va);
error_out("\n");
show_error_on_line(pos, end);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal void syntax_error_with_verbose_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);
if (global_error_collector.count > MAX_ERROR_COLLECTOR_COUNT()) {
print_all_errors();
gb_exit(1);
}
push_error_value(pos, ErrorValue_Warning);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Syntax Error: ", TerminalStyle_Normal, TerminalColour_Red);
error_out_va(fmt, va);
error_out("\n");
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
}
if (has_ansi_terminal_colours()) {
error_out_coloured("Syntax Error: ", TerminalStyle_Normal, TerminalColour_Red);
}
error_out_va(fmt, va);
error_out("\n");
show_error_on_line(pos, end);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal 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;
}
if (global_ignore_warnings()) {
return;
}
mutex_lock(&global_error_collector.mutex);
global_error_collector.warning_count++;
push_error_value(pos, ErrorValue_Warning);
if (pos.line == 0) {
error_out_empty();
error_out_coloured("Syntax Warning: ", TerminalStyle_Normal, TerminalColour_Yellow);
error_out_va(fmt, va);
error_out("\n");
} else {
// global_error_collector.prev = pos;
if (json_errors()) {
error_out_empty();
} else {
error_out_pos(pos);
}
error_out_coloured("Syntax Warning: ", TerminalStyle_Normal, TerminalColour_Yellow);
error_out_va(fmt, va);
error_out("\n");
// show_error_on_line(pos, end);
}
try_pop_error_value();
mutex_unlock(&global_error_collector.mutex);
}
gb_internal void warning(Token const &token, char const *fmt, ...) {
va_list va;
va_start(va, fmt);
warning_va(token.pos, {}, fmt, va);
va_end(va);
}
gb_internal void error(Token const &token, char const *fmt, ...) {
va_list va;
va_start(va, fmt);
error_va(token.pos, {}, fmt, va);
va_end(va);
}
gb_internal 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);
}
gb_internal void error_line(char const *fmt, ...) {
va_list va;
va_start(va, fmt);
error_line_va(fmt, va);
va_end(va);
}
gb_internal 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);
}
gb_internal void syntax_error(TokenPos pos, char const *fmt, ...) {
va_list va;
va_start(va, fmt);
syntax_error_va(pos, {}, fmt, va);
va_end(va);
}
gb_internal 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);
}
gb_internal void syntax_error_with_verbose(TokenPos pos, TokenPos end, char const *fmt, ...) {
va_list va;
va_start(va, fmt);
syntax_error_with_verbose_va(pos, end, fmt, va);
va_end(va);
}
gb_internal void compiler_error(char const *fmt, ...) {
if (any_errors() || any_warnings()) {
print_all_errors();
}
va_list va;
va_start(va, fmt);
gb_printf_err("Internal Compiler Error: %s\n",
gb_bprintf_va(fmt, va));
va_end(va);
GB_DEBUG_TRAP();
gb_exit(1);
}
gb_internal void exit_with_errors(void) {
if (any_errors() || any_warnings()) {
print_all_errors();
}
gb_exit(1);
}
gb_internal int error_value_cmp(void const *a, void const *b) {
ErrorValue *x = cast(ErrorValue *)a;
ErrorValue *y = cast(ErrorValue *)b;
return token_pos_cmp(x->pos, y->pos);
}
gb_global String error_article_table[][2] = {
{str_lit("a "), str_lit("bit_set literal")},
{str_lit("a "), str_lit("constant declaration")},
{str_lit("a "), str_lit("dynamic array literal")},
{str_lit("a "), str_lit("map index")},
{str_lit("a "), str_lit("map literal")},
{str_lit("a "), str_lit("matrix literal")},
{str_lit("a "), str_lit("polymorphic type argument")},
{str_lit("a "), str_lit("procedure argument")},
{str_lit("a "), str_lit("simd vector literal")},
{str_lit("a "), str_lit("slice literal")},
{str_lit("a "), str_lit("structure literal")},
{str_lit("a "), str_lit("variable declaration")},
{str_lit("an "), str_lit("'any' literal")},
{str_lit("an "), str_lit("array literal")},
{str_lit("an "), str_lit("enumerated array literal")},
};
// Returns definite or indefinite article matching `context_name`, or "" if not found.
gb_internal String error_article(String context_name) {
for (int i = 0; i < gb_count_of(error_article_table); i += 1) {
if (context_name == error_article_table[i][1]) {
return error_article_table[i][0];
}
}
return str_lit("");
}
gb_internal bool errors_already_printed = false;
gb_internal void print_all_errors(void) {
if (errors_already_printed) {
if (global_error_collector.warning_count.load() == global_error_collector.error_values.count) {
for (ErrorValue &ev : global_error_collector.error_values) {
array_free(&ev.msg);
}
array_clear(&global_error_collector.error_values);
errors_already_printed = false;
}
return;
}
auto const &escape_char = [](gbString res, u8 c) -> gbString {
switch (c) {
case '\n': res = gb_string_append_length(res, "\\n", 2); break;
case '"': res = gb_string_append_length(res, "\\\"", 2); break;
case '\\': res = gb_string_append_length(res, "\\\\", 2); break;
case '\b': res = gb_string_append_length(res, "\\b", 2); break;
case '\f': res = gb_string_append_length(res, "\\f", 2); break;
case '\r': res = gb_string_append_length(res, "\\r", 2); break;
case '\t': res = gb_string_append_length(res, "\\t", 2); break;
default:
if ('\x00' <= c && c <= '\x1f') {
res = gb_string_append_fmt(res, "\\u%04x", c);
} else {
res = gb_string_append_length(res, &c, 1);
}
break;
}
return res;
};
GB_ASSERT(any_errors() || any_warnings());
array_sort(global_error_collector.error_values, error_value_cmp);
{ // NOTE(bill): merge neighbouring errors
isize default_lines_to_skip = 1;
if (show_error_line()) {
// NOTE(bill): this will always be 2 extra lines
default_lines_to_skip += 2;
}
ErrorValue *prev_ev = nullptr;
for (isize i = 0; i < global_error_collector.error_values.count; /**/) {
ErrorValue &ev = global_error_collector.error_values[i];
if (prev_ev && prev_ev->pos == ev.pos) {
String_Iterator it = {{ev.msg.data, ev.msg.count}, 0};
for (isize lines_to_skip = default_lines_to_skip; lines_to_skip > 0; lines_to_skip -= 1) {
String line = string_split_iterator(&it, '\n');
if (line.len == 0) {
break;
}
}
// Merge additional text (suggestions for example) into the previous error.
String current = {prev_ev->msg.data, prev_ev->msg.count};
String addition = {it.str.text+it.pos, it.str.len-it.pos};
if (addition.len > 0 && !string_contains_string(current, addition)) {
array_add_elems(&prev_ev->msg, addition.text, addition.len);
}
array_free(&ev.msg);
array_ordered_remove(&global_error_collector.error_values, i);
} else {
prev_ev = &ev;
i += 1;
}
}
}
gbString res = gb_string_make(heap_allocator(), "");
defer (gb_string_free(res));
if (json_errors()) {
res = gb_string_append_fmt(res, "{\n");
res = gb_string_append_fmt(res, "\t\"error_count\": %td,\n", global_error_collector.error_values.count);
res = gb_string_append_fmt(res, "\t\"errors\": [\n");
for_array(i, global_error_collector.error_values) {
ErrorValue ev = global_error_collector.error_values[i];
res = gb_string_append_fmt(res, "\t\t{\n");
res = gb_string_append_fmt(res, "\t\t\t\"type\": \"");
if (ev.kind == ErrorValue_Warning) {
res = gb_string_append_fmt(res, "warning");
} else {
res = gb_string_append_fmt(res, "error");
}
res = gb_string_append_fmt(res, "\",\n");
if (ev.pos.file_id) {
res = gb_string_append_fmt(res, "\t\t\t\"pos\": {\n");
res = gb_string_append_fmt(res, "\t\t\t\t\"file\": \"");
String file = get_file_path_string(ev.pos.file_id);
for (isize k = 0; k < file.len; k++) {
res = escape_char(res, file.text[k]);
}
res = gb_string_append_fmt(res, "\",\n");
res = gb_string_append_fmt(res, "\t\t\t\t\"offset\": %d,\n", ev.pos.offset);
res = gb_string_append_fmt(res, "\t\t\t\t\"line\": %d,\n", ev.pos.line);
res = gb_string_append_fmt(res, "\t\t\t\t\"column\": %d,\n", ev.pos.column);
i32 end_column = gb_max(ev.end.column, ev.pos.column);
res = gb_string_append_fmt(res, "\t\t\t\t\"end_column\": %d\n", end_column);
res = gb_string_append_fmt(res, "\t\t\t},\n");
} else {
res = gb_string_append_fmt(res, "\t\t\t\"pos\": null,\n");
}
res = gb_string_append_fmt(res, "\t\t\t\"msgs\": [\n");
auto lines = split_lines_from_array(ev.msg, heap_allocator());
defer (array_free(&lines));
if (lines.count > 0) {
res = gb_string_append_fmt(res, "\t\t\t\t\"");
for (isize j = 0; j < lines.count; j++) {
String line = lines[j];
for (isize k = 0; k < line.len; k++) {
u8 c = line.text[k];
res = escape_char(res, c);
}
if (j+1 < lines.count) {
res = gb_string_append_fmt(res, "\",\n");
res = gb_string_append_fmt(res, "\t\t\t\t\"");
}
}
res = gb_string_append_fmt(res, "\"\n");
}
res = gb_string_append_fmt(res, "\t\t\t]\n");
res = gb_string_append_fmt(res, "\t\t}");