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/*
* Copyright (c) 2016 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "errmsg.hpp"
#include "os.hpp"
#include <stdio.h>
#define RED "\x1b[31;1m"
#define GREEN "\x1b[32;1m"
#define CYAN "\x1b[36;1m"
#define WHITE "\x1b[37;1m"
#define RESET "\x1b[0m"
enum ErrType {
ErrTypeError,
ErrTypeNote,
};
static void print_err_msg_type(ErrorMsg *err, ErrColor color, ErrType err_type) {
const char *path = buf_ptr(err->path);
size_t line = err->line_start + 1;
size_t col = err->column_start + 1;
const char *text = buf_ptr(err->msg);
if (color == ErrColorOn || (color == ErrColorAuto && os_stderr_tty())) {
if (err_type == ErrTypeError) {
fprintf(stderr, WHITE "%s:%" ZIG_PRI_usize ":%" ZIG_PRI_usize ": " RED "error:" WHITE " %s" RESET "\n", path, line, col, text);
} else if (err_type == ErrTypeNote) {
fprintf(stderr, WHITE "%s:%" ZIG_PRI_usize ":%" ZIG_PRI_usize ": " CYAN "note:" WHITE " %s" RESET "\n", path, line, col, text);
} else {
zig_unreachable();
}
fprintf(stderr, "%s\n", buf_ptr(&err->line_buf));
for (size_t i = 0; i < err->column_start; i += 1) {
fprintf(stderr, " ");
}
fprintf(stderr, GREEN "^" RESET "\n");
} else {
if (err_type == ErrTypeError) {
fprintf(stderr, "%s:%" ZIG_PRI_usize ":%" ZIG_PRI_usize ": error: %s\n", path, line, col, text);
} else if (err_type == ErrTypeNote) {
fprintf(stderr, " %s:%" ZIG_PRI_usize ":%" ZIG_PRI_usize ": note: %s\n", path, line, col, text);
} else {
zig_unreachable();
}
}
for (size_t i = 0; i < err->notes.length; i += 1) {
ErrorMsg *note = err->notes.at(i);
print_err_msg_type(note, color, ErrTypeNote);
}
}
void print_err_msg(ErrorMsg *err, ErrColor color) {
print_err_msg_type(err, color, ErrTypeError);
}
void err_msg_add_note(ErrorMsg *parent, ErrorMsg *note) {
parent->notes.append(note);
}
ErrorMsg *err_msg_create_with_offset(Buf *path, size_t line, size_t column, size_t offset,
const char *source, Buf *msg)
{
ErrorMsg *err_msg = allocate<ErrorMsg>(1);
err_msg->path = path;
err_msg->line_start = line;
err_msg->column_start = column;
err_msg->msg = msg;
size_t line_start_offset = offset;
for (;;) {
if (line_start_offset == 0) {
break;
}
line_start_offset -= 1;
if (source[line_start_offset] == '\n') {
line_start_offset += 1;
break;
}
}
size_t line_end_offset = offset;
while (source[line_end_offset] && source[line_end_offset] != '\n') {
line_end_offset += 1;
}
buf_init_from_mem(&err_msg->line_buf, source + line_start_offset, line_end_offset - line_start_offset);
return err_msg;
}
ErrorMsg *err_msg_create_with_line(Buf *path, size_t line, size_t column,
Buf *source, ZigList<size_t> *line_offsets, Buf *msg)
{
ErrorMsg *err_msg = allocate<ErrorMsg>(1);
err_msg->path = path;
err_msg->line_start = line;
err_msg->column_start = column;
err_msg->msg = msg;
size_t line_start_offset = line_offsets->at(line);
size_t end_line = line + 1;
size_t line_end_offset = (end_line >= line_offsets->length) ? buf_len(source) : line_offsets->at(line + 1);
size_t len = (line_end_offset + 1 > line_start_offset) ? (line_end_offset - line_start_offset - 1) : 0;
buf_init_from_mem(&err_msg->line_buf, buf_ptr(source) + line_start_offset, len);
return err_msg;
}
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