blob: 7cf21cec1df96c62ee6dfbb329f449d67ab13d68 (
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
|
#include "CodegenDecl.hpp"
#include <Utils.hpp>
static EnumValuePattern NextPattern(EnumValuePattern val) {
return (EnumValuePattern)(val + 1);
}
EnumValuePattern DeclEnum::CalcPattern() const {
if (elements.empty()) return EVP_Continuous;
auto pattern = EVP_Continuous;
restart:
auto lastVal = elements[0].value;
for (size_t i = 1; i < elements.size(); ++i) {
auto currVal = elements[i].value;
switch (pattern) {
case EVP_Continuous: {
bool satisfy = lastVal + 1 == currVal;
if (!satisfy) {
pattern = NextPattern(pattern);
goto restart;
}
} break;
case EVP_Bits: {
bool satisfy = (lastVal << 1) == currVal;
if (!satisfy) {
pattern = NextPattern(pattern);
goto restart;
}
} break;
// A random pattern can match anything
case EVP_Random:
case EVP_COUNT: break;
}
lastVal = currVal;
}
return pattern;
}
EnumValuePattern DeclEnum::GetPattern() const {
if (pattern == EVP_COUNT) {
pattern = CalcPattern();
}
return pattern;
}
|
