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Byte size
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This commit is contained in:
David Gonzalez Martin 2025-04-10 08:31:05 -06:00
parent 1febc390a8
commit 9199d4dc64
2 changed files with 33 additions and 1 deletions
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33
src/bootstrap.zig
View File

@ -524,7 +524,7 @@ pub const Value = struct {
kind: Kind = .right,
const Intrinsic = union(Id) {
byte_size,
byte_size: *Type,
cast,
cast_to,
extend: *Value,
@ -1829,6 +1829,20 @@ pub const Module = struct {
const intrinsic = value_builder.token.value_intrinsic;
const value = module.values.add();
value.* = switch (intrinsic) {
.byte_size => blk: {
module.skip_space();
module.expect_character(left_parenthesis);
module.skip_space();
const ty = module.parse_type();
module.expect_character(right_parenthesis);
break :blk .{
.bb = .{
.intrinsic = .{
.byte_size = ty,
},
},
};
},
.extend => blk: {
module.skip_space();
module.expect_character(left_parenthesis);
@ -2981,6 +2995,11 @@ pub const Module = struct {
@trap();
},
.intrinsic => |intrinsic| switch (intrinsic) {
.byte_size => |ty| blk: {
const byte_size = ty.get_byte_size();
const constant_integer = value_type.resolve(module).handle.to_integer().get_constant(byte_size, @intFromBool(false));
break :blk constant_integer.to_value();
},
.extend => |extended_value| blk: {
if (extended_value.llvm == null) {
module.emit_value(function, extended_value);
@ -3477,6 +3496,18 @@ pub const Module = struct {
},
},
.intrinsic => |intrinsic| switch (intrinsic) {
.byte_size => |ty| {
// TODO
if (expected_type.bb != .integer) {
module.report_error();
}
const size = ty.get_byte_size();
const max_value = if (expected_type.bb.integer.bit_count == 64) ~@as(u64, 0) else (@as(u64, 1) << @intCast(expected_type.bb.integer.bit_count - @intFromBool(expected_type.bb.integer.signed))) - 1;
if (size > max_value) {
module.report_error();
}
},
.extend => |extended_value| {
module.analyze_value_type(function, extended_value, .{});
assert(extended_value.type != null);

1
src/main.zig
View File

@ -201,4 +201,5 @@ const names = &[_][]const u8{
"global",
"function_pointer",
"extern",
"byte_size",
};