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Relative pointers

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This commit is contained in:
gingerBill
2020-05-15 17:37:00 +01:00
parent 8b066b2456
commit ff92eb9112
14 changed files with 534 additions and 40 deletions
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core/fmt/fmt.odin
+112
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@@ -8,6 +8,7 @@ import "core:unicode/utf8"
import "core:strconv"
import "core:strings"
import "core:reflect"
import "intrinsics"
@private
@@ -1712,6 +1713,117 @@ fmt_value :: proc(fi: ^Info, v: any, verb: rune) {
case runtime.Type_Info_Opaque:
fmt_opaque(fi, v);
case runtime.Type_Info_Relative_Pointer:
ptr_any := any{v.data, info.base_integer.id};
ptr: rawptr;
switch i in &ptr_any {
case u8: ptr = handle_relative_pointer(&i);
case u16: ptr = handle_relative_pointer(&i);
case u32: ptr = handle_relative_pointer(&i);
case u64: ptr = handle_relative_pointer(&i);
case i8: ptr = handle_relative_pointer(&i);
case i16: ptr = handle_relative_pointer(&i);
case i32: ptr = handle_relative_pointer(&i);
case i64: ptr = handle_relative_pointer(&i);
case u16le: ptr = handle_relative_pointer(&i);
case u32le: ptr = handle_relative_pointer(&i);
case u64le: ptr = handle_relative_pointer(&i);
case i16le: ptr = handle_relative_pointer(&i);
case i32le: ptr = handle_relative_pointer(&i);
case i64le: ptr = handle_relative_pointer(&i);
case u16be: ptr = handle_relative_pointer(&i);
case u32be: ptr = handle_relative_pointer(&i);
case u64be: ptr = handle_relative_pointer(&i);
case i16be: ptr = handle_relative_pointer(&i);
case i32be: ptr = handle_relative_pointer(&i);
case i64be: ptr = handle_relative_pointer(&i);
}
absolute_ptr := any{ptr, info.pointer.id};
fmt_value(fi, absolute_ptr, verb);
case runtime.Type_Info_Relative_Slice:
ptr_any := any{v.data, info.base_integer.id};
ptr: rawptr;
switch i in &ptr_any {
case u8: ptr = handle_relative_pointer(&i);
case u16: ptr = handle_relative_pointer(&i);
case u32: ptr = handle_relative_pointer(&i);
case u64: ptr = handle_relative_pointer(&i);
case i8: ptr = handle_relative_pointer(&i);
case i16: ptr = handle_relative_pointer(&i);
case i32: ptr = handle_relative_pointer(&i);
case i64: ptr = handle_relative_pointer(&i);
case u16le: ptr = handle_relative_pointer(&i);
case u32le: ptr = handle_relative_pointer(&i);
case u64le: ptr = handle_relative_pointer(&i);
case i16le: ptr = handle_relative_pointer(&i);
case i32le: ptr = handle_relative_pointer(&i);
case i64le: ptr = handle_relative_pointer(&i);
case u16be: ptr = handle_relative_pointer(&i);
case u32be: ptr = handle_relative_pointer(&i);
case u64be: ptr = handle_relative_pointer(&i);
case i16be: ptr = handle_relative_pointer(&i);
case i32be: ptr = handle_relative_pointer(&i);
case i64be: ptr = handle_relative_pointer(&i);
}
if verb == 'p' {
fmt_pointer(fi, ptr, 'p');
} else if ptr == nil {
strings.write_string(fi.buf, "[]");
} else {
len_ptr := uintptr(v.data) + uintptr(info.base_integer.size);
len_any := any{rawptr(len_ptr), info.base_integer.id};
len: int = 0;
switch i in len_any {
case u8: len = int(i);
case u16: len = int(i);
case u32: len = int(i);
case u64: len = int(i);
case i8: len = int(i);
case i16: len = int(i);
case i32: len = int(i);
case i64: len = int(i);
case u16le: len = int(i);
case u32le: len = int(i);
case u64le: len = int(i);
case i16le: len = int(i);
case i32le: len = int(i);
case i64le: len = int(i);
case u16be: len = int(i);
case u32be: len = int(i);
case u64be: len = int(i);
case i16be: len = int(i);
case i32be: len = int(i);
case i64be: len = int(i);
}
slice_type := reflect.type_info_base(info.slice).variant.(runtime.Type_Info_Slice);
strings.write_byte(fi.buf, '[');
defer strings.write_byte(fi.buf, ']');
for i in 0..<len {
if i > 0 do strings.write_string(fi.buf, ", ");
data := uintptr(ptr) + uintptr(i*slice_type.elem_size);
fmt_arg(fi, any{rawptr(data), slice_type.elem.id}, verb);
}
}
}
handle_relative_pointer :: proc(ptr: ^$T) -> rawptr where intrinsics.type_is_integer(T) {
if ptr^ == 0 {
return nil;
}
when intrinsics.type_is_unsigned(T) {
return rawptr(uintptr(ptr) + uintptr(ptr^));
} else {
return rawptr(uintptr(ptr) + uintptr(i64(ptr^)));
}
}
}