about summary refs log tree commit diff stats
path: root/018constant.cc
blob: bbf3a4121a0162ace67786fb40018f5ddd01a8c5 (plain) (blame)
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
//: A few literal constants.

:(before "End Mu Types Initialization")
put(Type_ordinal, "literal-boolean", 0);

//: 'true'

:(code)
void test_true() {
  load(
      "def main [\n"
      "  1:boolean <- copy true\n"
      "]\n"
  );
  CHECK_TRACE_CONTENTS(
      "parse:   ingredient: {true: \"literal-boolean\"}\n"
  );
}

:(before "End Parsing reagent")
if (name == "true") {
  if (type != NULL) {
    raise << "'true' is a literal and can't take a type\n" << end();
    return;
  }
  type = new type_tree("literal-boolean");
  set_value(1);
}

//: 'false'

:(code)
void test_false() {
  load(
      "def main [\n"
      "  1:boolean <- copy false\n"
      "]\n"
  );
  CHECK_TRACE_CONTENTS(
      "parse:   ingredient: {false: \"literal-boolean\"}\n"
  );
}

:(before "End Parsing reagent")
if (name == "false") {
  if (type != NULL) {
    raise << "'false' is a literal and can't take a type\n" << end();
    return;
  }
  type = new type_tree("literal-boolean");
  set_value(0);
}

//: 'null'

:(before "End Mu Types Initialization")
put(Type_ordinal, "literal-address", 0);

:(code)
void test_null() {
  load(
      "def main [\n"
      "  1:address:number <- copy null\n"
      "]\n"
  );
  CHECK_TRACE_CONTENTS(
      "parse:   ingredient: {null: \"literal-address\"}\n"
  );
}

:(before "End Parsing reagent")
if (name == "null") {
  if (type != NULL) {
    raise << "'null' is a literal and can't take a type\n" << end();
    return;
  }
  type = new type_tree("literal-address");
  set_value(0);
}