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type_info_of; enum_value_to_string and string_to_enum_value

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This commit is contained in:
Ginger Bill
2017-07-19 14:01:56 +01:00
parent 6113164211
commit f1ab17ed4e
8 changed files with 123 additions and 93 deletions
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core/_preload.odin
+9 -7
View File
@@ -20,7 +20,7 @@ import (
// IMPORTANT NOTE(bill): `type_info` cannot be used within a
// IMPORTANT NOTE(bill): `type_info_of` cannot be used within a
// #shared_global_scope due to the internals of the compiler.
// This could change at a later date if the all these data structures are
// implemented within the compiler rather than in this "preload" file
@@ -38,10 +38,12 @@ CallingConvention :: enum {
// The compiler relies upon this _exact_ order
TypeInfo :: struct #ordered {
// Core Types
EnumValue :: struct #raw_union {
f: f64;
i: i128;
}
EnumValue :: union {
rune,
i8, i16, i32, i64, i128, int,
u8, u16, u32, u64, u128, uint,
f32, f64,
};
Record :: struct #ordered {
types: []^TypeInfo;
names: []string;
@@ -416,7 +418,7 @@ __get_map_header :: proc(m: ^$T/map[$K]$V) -> __MapHeader #cc_contextless {
value: V;
}
_, is_string := type_info_base(type_info(K)).variant.(TypeInfo.String);
_, is_string := type_info_base(type_info_of(K)).variant.(TypeInfo.String);
header.is_key_string = is_string;
header.entry_size = size_of(Entry);
header.entry_align = align_of(Entry);
@@ -427,7 +429,7 @@ __get_map_header :: proc(m: ^$T/map[$K]$V) -> __MapHeader #cc_contextless {
__get_map_key :: proc(key: $K) -> __MapKey #cc_contextless {
map_key: __MapKey;
ti := type_info_base_without_enum(type_info(K));
ti := type_info_base_without_enum(type_info_of(K));
match _ in ti {
case TypeInfo.Integer:
match 8*size_of(key) {
core/fmt.odin
+72 -56
View File
@@ -183,8 +183,8 @@ write_type :: proc(buf: ^StringBuffer, ti: ^TypeInfo) {
write_string(buf, info.name);
case Integer:
match {
case ti == type_info(int): write_string(buf, "int");
case ti == type_info(uint): write_string(buf, "uint");
case ti == type_info_of(int): write_string(buf, "int");
case ti == type_info_of(uint): write_string(buf, "uint");
case:
write_string(buf, info.signed ? "i" : "u");
write_int(buf, i64(8*ti.size), 10);
@@ -648,6 +648,70 @@ fmt_pointer :: proc(fi: ^FmtInfo, p: rawptr, verb: rune) {
_fmt_int(fi, u, 16, false, 8*size_of(rawptr), __DIGITS_UPPER);
}
enum_value_to_string :: proc(v: any) -> (string, bool) {
v.type_info = type_info_base(v.type_info);
using TypeInfo;
match e in v.type_info.variant {
case: return "", false;
case Enum:
get_str :: proc(i: $T, e: Enum) -> (string, bool) {
if types.is_string(e.base) {
for val, idx in e.values {
if v, ok := val.(T); ok && v == i {
return e.names[idx], true;
}
}
} else if len(e.values) == 0 {
return "", true;
} else {
for val, idx in e.values {
if v, ok := val.(T); ok && v == i {
return e.names[idx], true;
}
}
}
return "", false;
}
a := any{v.data, type_info_base(e.base)};
match v in a {
case rune: return get_str(v, e);
case i8: return get_str(v, e);
case i16: return get_str(v, e);
case i32: return get_str(v, e);
case i64: return get_str(v, e);
case i128: return get_str(v, e);
case int: return get_str(v, e);
case u8: return get_str(v, e);
case u16: return get_str(v, e);
case u32: return get_str(v, e);
case u64: return get_str(v, e);
case u128: return get_str(v, e);
case uint: return get_str(v, e);
case f32: return get_str(v, e);
case f64: return get_str(v, e);
}
}
return "", false;
}
string_to_enum_value :: proc(T: type, s: string) -> (T, bool) {
ti := type_info_base(type_info_of(T));
if e, ok := ti.variant.(TypeInfo.Enum); ok {
for str, idx in e.names {
if s == str {
// NOTE(bill): Unsafe cast
ptr := cast(^T)&e.values[idx];
return ptr^, true;
}
}
}
return T{}, false;
}
fmt_enum :: proc(fi: ^FmtInfo, v: any, verb: rune) {
if v.type_info == nil || v.data == nil {
write_string(fi.buf, "<nil>");
@@ -656,64 +720,16 @@ fmt_enum :: proc(fi: ^FmtInfo, v: any, verb: rune) {
using TypeInfo;
match e in v.type_info.variant {
case:
fmt_bad_verb(fi, verb);
return;
case: fmt_bad_verb(fi, verb);
case Enum:
match verb {
case: fmt_bad_verb(fi, verb);
case 'd', 'f':
fmt_arg(fi, any{v.data, type_info_base(e.base)}, verb);
case 's', 'v':
i: i128;
f: f64;
ok: bool;
a := any{v.data, type_info_base(e.base)};
match v in a {
case rune: i = i128(v);
case i8: i = i128(v);
case i16: i = i128(v);
case i32: i = i128(v);
case i64: i = i128(v);
case i128: i = i128(v);
case int: i = i128(v);
case u8: i = i128(v);
case u16: i = i128(v);
case u32: i = i128(v);
case u64: i = i128(v);
case u128: i = i128(v);
case uint: i = i128(v);
case f32: f = f64(v); i = i128(transmute(i64, f));
case f64: f = f64(v); i = i128(transmute(i64, f));
}
if types.is_string(e.base) {
for val, idx in e.values {
if val.i == i {
write_string(fi.buf, e.names[idx]);
ok = true;
break;
}
}
} else if len(e.values) == 0 {
write_string(fi.buf, "");
ok = true;
} else {
for val, idx in e.values {
if val.i == i {
write_string(fi.buf, e.names[idx]);
ok = true;
break;
}
}
}
if !ok {
write_string(fi.buf, "!%(BAD ENUM VALUE)");
}
case:
fmt_bad_verb(fi, verb);
return;
str, ok := enum_value_to_string(v);
if !ok do str = "!%(BAD ENUM VALUE)";
write_string(fi.buf, str);
}
}
}
@@ -762,7 +778,7 @@ fmt_value :: proc(fi: ^FmtInfo, v: any, verb: rune) {
case String: fmt_arg(fi, v, verb);
case Pointer:
if v.type_info == type_info(^TypeInfo) {
if v.type_info == type_info_of(^TypeInfo) {
write_type(fi.buf, (cast(^^TypeInfo)v.data)^);
} else {
fmt_pointer(fi, (cast(^rawptr)v.data)^, verb);