f1d338194e
* Introduce the concept of packages. Closes #3 * Add support for error notes. * Introduce `@import` and `@c_import` builtin functions and remove the `import` and `c_import` top level declarations. * Introduce the `use` top level declaration. * Add `--check-unused` parameter to perform semantic analysis and codegen on all top level declarations, not just exported ones and ones referenced by exported ones. * Delete the root export node and add `--library` argument.
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
#include "errmsg.hpp"
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#include "os.hpp"
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#include <stdio.h>
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#define RED "\x1b[31;1m"
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#define GREEN "\x1b[32;1m"
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#define CYAN "\x1b[36;1m"
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#define WHITE "\x1b[37;1m"
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#define RESET "\x1b[0m"
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enum ErrType {
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ErrTypeError,
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ErrTypeNote,
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};
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static void print_err_msg_type(ErrorMsg *err, ErrColor color, ErrType err_type) {
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const char *path = buf_ptr(err->path);
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int line = err->line_start + 1;
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int col = err->column_start + 1;
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const char *text = buf_ptr(err->msg);
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if (color == ErrColorOn || (color == ErrColorAuto && os_stderr_tty())) {
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if (err_type == ErrTypeError) {
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fprintf(stderr, WHITE "%s:%d:%d: " RED "error:" WHITE " %s" RESET "\n", path, line, col, text);
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} else if (err_type == ErrTypeNote) {
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fprintf(stderr, WHITE "%s:%d:%d: " CYAN "note:" WHITE " %s" RESET "\n", path, line, col, text);
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} else {
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zig_unreachable();
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}
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fprintf(stderr, "%s\n", buf_ptr(&err->line_buf));
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for (int i = 0; i < err->column_start; i += 1) {
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fprintf(stderr, " ");
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}
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fprintf(stderr, GREEN "^" RESET "\n");
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} else {
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if (err_type == ErrTypeError) {
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fprintf(stderr, "%s:%d:%d: error: %s\n", path, line, col, text);
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} else if (err_type == ErrTypeNote) {
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fprintf(stderr, " %s:%d:%d: note: %s\n", path, line, col, text);
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} else {
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zig_unreachable();
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}
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}
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for (int i = 0; i < err->notes.length; i += 1) {
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ErrorMsg *note = err->notes.at(i);
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print_err_msg_type(note, color, ErrTypeNote);
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}
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}
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void print_err_msg(ErrorMsg *err, ErrColor color) {
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print_err_msg_type(err, color, ErrTypeError);
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}
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void err_msg_add_note(ErrorMsg *parent, ErrorMsg *note) {
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parent->notes.append(note);
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}
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ErrorMsg *err_msg_create_with_offset(Buf *path, int line, int column, int offset,
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const char *source, Buf *msg)
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{
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ErrorMsg *err_msg = allocate<ErrorMsg>(1);
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err_msg->path = path;
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err_msg->line_start = line;
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err_msg->column_start = column;
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err_msg->msg = msg;
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int line_start_offset = offset;
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for (;;) {
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if (line_start_offset == 0) {
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break;
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} else if (source[line_start_offset] == '\n') {
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line_start_offset += 1;
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break;
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}
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line_start_offset -= 1;
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}
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int line_end_offset = offset;
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while (source[line_end_offset] && source[line_end_offset] != '\n') {
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line_end_offset += 1;
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}
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buf_init_from_mem(&err_msg->line_buf, source + line_start_offset, line_end_offset - line_start_offset);
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return err_msg;
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}
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ErrorMsg *err_msg_create_with_line(Buf *path, int line, int column,
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Buf *source, ZigList<int> *line_offsets, Buf *msg)
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{
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ErrorMsg *err_msg = allocate<ErrorMsg>(1);
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err_msg->path = path;
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err_msg->line_start = line;
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err_msg->column_start = column;
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err_msg->msg = msg;
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int line_start_offset = line_offsets->at(line);
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int end_line = line + 1;
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int line_end_offset = (end_line >= line_offsets->length) ? buf_len(source) : line_offsets->at(line + 1);
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int len = line_end_offset - line_start_offset - 1;
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if (len < 0) {
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len = 0;
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}
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buf_init_from_mem(&err_msg->line_buf, buf_ptr(source) + line_start_offset, len);
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return err_msg;
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}
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