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Maybe types; value, ok := maybe_value(x)

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This commit is contained in:
Ginger Bill
2016-10-06 23:30:22 +01:00
parent 50301557b2
commit f40482aa29
12 changed files with 309 additions and 118 deletions
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14
src/exact_value.cpp
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@@ -25,7 +25,7 @@ struct ExactValue {
String value_string;
i64 value_integer;
f64 value_float;
void * value_pointer;
i64 value_pointer;
AstNode *value_compound;
};
};
@@ -93,7 +93,7 @@ ExactValue make_exact_value_float(f64 f) {
ExactValue make_exact_value_pointer(void *ptr) {
ExactValue result = {ExactValue_Pointer};
result.value_pointer = ptr;
result.value_pointer = cast(i64)cast(intptr)ptr;
return result;
}
@@ -121,8 +121,14 @@ ExactValue exact_value_to_integer(ExactValue v) {
switch (v.kind) {
case ExactValue_Integer:
return v;
case ExactValue_Float:
return make_exact_value_integer(cast(i64)v.value_float);
case ExactValue_Float: {
i64 i = cast(i64)v.value_float;
f64 f = cast(f64)i;
if (f == v.value_float) {
return make_exact_value_integer(i);
}
} break;
case ExactValue_Pointer:
return make_exact_value_integer(cast(i64)cast(intptr)v.value_pointer);
}