basic find usages

1 files changed, 68 insertions, 0 deletions

diff --git a/ide-usages.c b/ide-usages.c
new file mode 100644
index 0000000..21999be
--- /dev/null
+++ b/ide-usages.c
@@ -0,0 +1,68 @@
+void usages_cancel_lookup(Ted *ted) {
+	Usages *usages = &ted->usages;
+	if (usages->last_request_id) {
+		LSP *lsp = ted_get_lsp_by_id(ted, usages->last_request_lsp);
+		lsp_cancel_request(lsp, usages->last_request_id);
+		usages->last_request_id = 0;
+	}
+}
+
+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 = lsp->id;
+	usages->last_request_id = lsp_send_request(lsp, &request);
+	usages->last_request_time = ted->frame_time;
+}
+
+
+void usages_process_lsp_response(Ted *ted, 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);
+	LSPResponseReferences *refs = &response->data.references;
+	if (lsp && arr_len(refs->locations)) { 
+		TextBuffer *buffer = &ted->build_buffer;
+		build_setup_buffer(ted);
+		ted->build_shown = true;
+		arr_foreach_ptr(refs->locations, LSPLocation, location) {
+			char text[1024];
+			strbuf_printf(text, "%s:%u: \n",
+				lsp_document_path(lsp, location->document),
+				location->range.start.line + 1);
+			buffer_insert_utf8_at_cursor(buffer, text);
+			buffer_cursor_move_to_end_of_file(buffer);
+		}
+		buffer->view_only = true;
+		
+		// the build_dir 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);
+		strbuf_cpy(ted->build_dir, root);
+		free(root);
+		
+		build_check_for_errors(ted);
+	} else {
+		ted->cursor_error_time = time_get_seconds();
+	}
+	usages->last_request_id = 0;
+}
+
+void usages_frame(Ted *ted) {
+	Usages *usages = &ted->usages;
+	if (usages->last_request_id && timespec_sub(ted->frame_time, usages->last_request_time) > 0.2)
+		ted->cursor = ted->cursor_wait; // this request is takin a while
+}