summaryrefslogtreecommitdiff
path: root/ide-usages.c
blob: a3b91949341224aa1989f6d8f896c8f30ebd5bd4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
// find usages of symbol

#include "ted.h"

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 < last_buffer->nlines) {
					BufferPos pos = {.line = line, .index = 0};
					line_text = buffer_get_utf8_text_at_pos(last_buffer, pos, last_buffer->lines[line].len);
				}
			} 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->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_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
}