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runtime.Typeid_Bit_Field layout to store more information into the typeid

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This commit is contained in:
gingerBill
2018-08-25 12:11:48 +01:00
parent cc88dd0b71
commit 3365baee8f
3 changed files with 175 additions and 3 deletions
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core/fmt/fmt.odin
+55
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@@ -96,6 +96,11 @@ write_encoded_rune :: proc(buf: ^String_Buffer, r: rune) {
write_byte(buf, '\'');
}
write_u64 :: proc(buf: ^String_Buffer, i: u64, base: int) {
b: [129]byte;
s := strconv.append_bits(b[:], u64(i), base, false, 64, strconv.digits, nil);
write_string(buf, s);
}
write_i64 :: proc(buf: ^String_Buffer, i: i64, base: int) {
b: [129]byte;
s := strconv.append_bits(b[:], u64(i), base, true, 64, strconv.digits, nil);
@@ -833,6 +838,51 @@ fmt_bit_set :: proc(fi: ^Fmt_Info, v: any, name: string = "") {
}
}
}
fmt_bit_field :: proc(fi: ^Fmt_Info, v: any, name: string = "") {
type_info := type_info_of(v.typeid);
switch info in type_info.variant {
case runtime.Type_Info_Named:
val := v;
val.typeid = info.base.id;
fmt_bit_field(fi, val, info.name);
case runtime.Type_Info_Bit_Field:
data: u64 = 0;
switch type_info.size {
case 1: data = cast(u64) (^u8)(v.data)^;
case 2: data = cast(u64)(^u16)(v.data)^;
case 4: data = cast(u64)(^u32)(v.data)^;
case 8: data = cast(u64)(^u64)(v.data)^;
}
if name != "" {
write_string(fi.buf, name);
write_byte(fi.buf, '{');
} else {
write_string(fi.buf, "bit_field{");
}
for name, i in info.names {
if i > 0 {
write_string(fi.buf, ", ");
}
bits := u64(info.bits[i]);
offset := u64(info.offsets[i]);
write_string(fi.buf, name);
write_string(fi.buf, " = ");
n := 8*u64(size_of(u64));
sa := n - bits;
u := data>>offset;
u <<= sa;
u >>= sa;
write_u64(fi.buf, u, 10);
}
write_byte(fi.buf, '}');
case:
write_string(fi.buf, "HERE");
}
}
fmt_value :: proc(fi: ^Fmt_Info, v: any, verb: rune) {
if v.data == nil || v.typeid == nil {
@@ -887,6 +937,8 @@ fmt_value :: proc(fi: ^Fmt_Info, v: any, verb: rune) {
case runtime.Type_Info_Bit_Set:
fmt_bit_set(fi, v);
case runtime.Type_Info_Bit_Field:
fmt_bit_field(fi, v);
case:
fmt_value(fi, any{v.data, typeid_of(info.base)}, verb);
}
@@ -1052,6 +1104,9 @@ fmt_value :: proc(fi: ^Fmt_Info, v: any, verb: rune) {
id := (^typeid)(v.data)^;
write_typeid(fi.buf, id);
case runtime.Type_Info_Bit_Field:
fmt_bit_field(fi, v);
case runtime.Type_Info_Bit_Set:
fmt_bit_set(fi, v);
}