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// find usages of symbol
#include "ted-internal.h"
struct Usages {
LSPServerRequestID last_request;
double last_request_time;
};
void usages_init(Ted *ted) {
ted->usages = calloc(1, sizeof *ted->usages);
}
void usages_quit(Ted *ted) {
free(ted->usages);
ted->usages = NULL;
}
void usages_cancel_lookup(Ted *ted) {
Usages *usages = ted->usages;
ted_cancel_lsp_request(ted, &usages->last_request);
}
void usages_find(Ted *ted) {
Usages *usages = ted->usages;
TextBuffer *buffer = ted->active_buffer;
if (!buffer) return;
LSP *lsp = buffer_lsp(buffer);
if (!lsp) return;
// send the request
LSPRequest request = {.type = LSP_REQUEST_REFERENCES};
LSPRequestReferences *refs = &request.data.references;
refs->include_declaration = true;
refs->position = buffer_cursor_pos_as_lsp_document_position(buffer);
usages_cancel_lookup(ted);
usages->last_request= lsp_send_request(lsp, &request);
usages->last_request_time = ted->frame_time;
}
void usages_process_lsp_response(Ted *ted, const LSPResponse *response) {
Usages *usages = ted->usages;
if (response->request.type != LSP_REQUEST_REFERENCES)
return; // not for us
if (response->request.id != usages->last_request.id)
return;
LSP *lsp = ted_get_lsp_by_id(ted, usages->last_request.lsp);
const LSPResponseReferences *refs = &response->data.references;
if (lsp && arr_len(refs->locations)) {
TextBuffer *buffer = ted->build_buffer;
build_setup_buffer(ted);
ted->build_shown = true;
char last_path[TED_PATH_MAX] = {0};
TextBuffer *last_buffer = NULL;
FILE *last_file = NULL;
u32 last_line = 0;
arr_foreach_ptr(refs->locations, LSPLocation, location) {
const char *path = lsp_document_path(lsp, location->document);
if (!paths_eq(path, last_path)) {
// it's a new file!
strbuf_cpy(last_path, path);
if (last_file) {
fclose(last_file);
last_file = NULL;
}
last_buffer = ted_get_buffer_with_file(ted, path);
if (!last_buffer) {
last_file = fopen(path, "rb");
last_line = 0;
}
}
u32 line = location->range.start.line;
char *line_text = NULL;
if (last_buffer) {
// read the line from the buffer
if (line < buffer_line_count(last_buffer)) {
line_text = buffer_get_line_utf8(last_buffer, line);
}
} else if (last_file) {
// read the line from the file
while (last_line < line) {
int c = getc(last_file);
if (c == '\n') ++last_line;
if (c == EOF) {
fclose(last_file);
last_file = NULL;
break;
}
}
line_text = calloc(1, 1024);
if (last_file && last_line == line) {
char *p = line_text;
for (u32 i = 0; i < 1023; ++i, ++p) {
int c = getc(last_file);
if (c == '\n') {
++last_line;
break;
}
if (c == EOF) {
fclose(last_file);
last_file = NULL;
break;
}
line_text[i] = (char)c;
}
}
}
char text[1024];
strbuf_printf(text, "%s:%u: %s\n",
path,
line + 1,
line_text ? line_text + strspn(line_text, "\t ") : "");
free(line_text);
buffer_insert_utf8_at_cursor(buffer, text);
buffer_cursor_move_to_end_of_file(buffer);
}
if (last_file)
fclose(last_file);
buffer_set_view_only(buffer, true);
// the build directory doesn't really matter since we're using absolute paths
// but might as well set it to something reasonable.
char *root = ted_get_root_dir(ted);
build_set_working_directory(ted, root);
free(root);
build_check_for_errors(ted);
} else {
ted_flash_error_cursor(ted);
}
usages->last_request.id = 0;
}
void usages_frame(Ted *ted) {
Usages *usages = ted->usages;
if (usages->last_request.id && ted->frame_time - usages->last_request_time > 0.2)
ted->cursor = ted->cursor_wait; // this request is takin a while
}
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