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"count" method on strings.

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Bob Nystrom
2013-10-26 14:34:15 -07:00
parent f867bb8348
commit d9a4da94a3
1 changed files with 12 additions and 0 deletions
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12
src/vm.c
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@ -38,6 +38,7 @@ static void push(Fiber* fiber, Value value);
static Value pop(Fiber* fiber); static Value pop(Fiber* fiber);
static Value primitive_metaclass_new(Value receiver); static Value primitive_metaclass_new(Value receiver);
static Value primitive_num_abs(Value receiver); static Value primitive_num_abs(Value receiver);
static Value primitive_string_count(Value receiver);
VM* newVM() VM* newVM()
{ {
@ -62,6 +63,9 @@ VM* newVM()
vm->numClass = makeClass(); vm->numClass = makeClass();
PRIMITIVE(num, abs); PRIMITIVE(num, abs);
vm->stringClass = makeClass();
PRIMITIVE(string, count);
return vm; return vm;
} }
@ -449,3 +453,11 @@ Value primitive_num_abs(Value receiver)
return (Value)makeNum(value); return (Value)makeNum(value);
} }
Value primitive_string_count(Value receiver)
{
double count = strlen(((ObjString*)receiver)->value);
return (Value)makeNum(count);
}