mu/018constant.cc

64 lines
1.3 KiB
C++

//: A few literal constants.
:(scenarios load) // use 'load' instead of 'run' in all scenarios in this layer
:(before "End Mu Types Initialization")
put(Type_ordinal, "literal-boolean", 0);
//: 'true'
:(scenario true)
def main [
1:boolean <- copy true
]
+parse: ingredient: {true: "literal-boolean"}
:(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'
:(scenario false)
def main [
1:boolean <- copy false
]
+parse: ingredient: {false: "literal-boolean"}
:(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);
:(scenario null)
def main [
1:address:number <- copy null
]
+parse: ingredient: {null: "literal-address"}
:(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);
}