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self-hosted: rename codegen Result.appended to Result.ok

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This commit is contained in:
Jakub Konka
2023-01-25 10:28:18 +01:00
parent 4983da40d0
commit a95d58caf2
12 changed files with 78 additions and 78 deletions
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114
src/codegen.zig
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@@ -22,8 +22,10 @@ const Value = @import("value.zig").Value;
const Zir = @import("Zir.zig");
pub const Result = union(enum) {
/// The `code` parameter passed to `generateSymbol` has the value appended.
appended: void,
/// The `code` parameter passed to `generateSymbol` has the value ok.
ok: void,
/// There was a codegen error.
fail: *ErrorMsg,
};
@@ -138,7 +140,7 @@ pub fn generateSymbol(
if (typed_value.val.isUndefDeep()) {
const abi_size = math.cast(usize, typed_value.ty.abiSize(target)) orelse return error.Overflow;
try code.appendNTimes(0xaa, abi_size);
return Result{ .appended = {} };
return Result.ok;
}
switch (typed_value.ty.zigTypeTag()) {
@@ -169,7 +171,7 @@ pub fn generateSymbol(
128 => writeFloat(f128, typed_value.val.toFloat(f128), target, endian, try code.addManyAsArray(16)),
else => unreachable,
}
return Result{ .appended = {} };
return Result.ok;
},
.Array => switch (typed_value.val.tag()) {
.bytes => {
@@ -178,7 +180,7 @@ pub fn generateSymbol(
// The bytes payload already includes the sentinel, if any
try code.ensureUnusedCapacity(len);
code.appendSliceAssumeCapacity(bytes[0..len]);
return Result{ .appended = {} };
return Result.ok;
},
.str_lit => {
const str_lit = typed_value.val.castTag(.str_lit).?.data;
@@ -190,7 +192,7 @@ pub fn generateSymbol(
const byte = @intCast(u8, sent_val.toUnsignedInt(target));
code.appendAssumeCapacity(byte);
}
return Result{ .appended = {} };
return Result.ok;
},
.aggregate => {
const elem_vals = typed_value.val.castTag(.aggregate).?.data;
@@ -201,11 +203,11 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = elem_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
return Result{ .appended = {} };
return Result.ok;
},
.repeated => {
const array = typed_value.val.castTag(.repeated).?.data;
@@ -219,7 +221,7 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = array,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
@@ -229,12 +231,12 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = sentinel_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
return Result{ .appended = {} };
return Result.ok;
},
.empty_array_sentinel => {
const elem_ty = typed_value.ty.childType();
@@ -243,10 +245,10 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = sentinel_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
return Result{ .appended = {} };
return Result.ok;
},
else => return Result{
.fail = try ErrorMsg.create(
@@ -270,7 +272,7 @@ pub fn generateSymbol(
},
else => unreachable,
}
return Result{ .appended = {} };
return Result.ok;
},
.variable => {
const decl = typed_value.val.castTag(.variable).?.data.owner_decl;
@@ -290,7 +292,7 @@ pub fn generateSymbol(
.ty = slice_ptr_field_type,
.val = slice.ptr,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
@@ -299,11 +301,11 @@ pub fn generateSymbol(
.ty = Type.initTag(.usize),
.val = slice.len,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
return Result{ .appended = {} };
return Result.ok;
},
.field_ptr => {
const field_ptr = typed_value.val.castTag(.field_ptr).?.data;
@@ -350,10 +352,10 @@ pub fn generateSymbol(
.ty = typed_value.ty,
.val = container_ptr,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
return Result{ .appended = {} };
return Result.ok;
},
else => return Result{
.fail = try ErrorMsg.create(
@@ -406,7 +408,7 @@ pub fn generateSymbol(
.signed => @bitCast(u8, @intCast(i8, typed_value.val.toSignedInt(target))),
};
try code.append(x);
return Result{ .appended = {} };
return Result.ok;
}
if (info.bits > 64) {
var bigint_buffer: Value.BigIntSpace = undefined;
@@ -415,7 +417,7 @@ pub fn generateSymbol(
const start = code.items.len;
try code.resize(start + abi_size);
bigint.writeTwosComplement(code.items[start..][0..abi_size], endian);
return Result{ .appended = {} };
return Result.ok;
}
switch (info.signedness) {
.unsigned => {
@@ -443,7 +445,7 @@ pub fn generateSymbol(
}
},
}
return Result{ .appended = {} };
return Result.ok;
},
.Enum => {
var int_buffer: Value.Payload.U64 = undefined;
@@ -453,7 +455,7 @@ pub fn generateSymbol(
if (info.bits <= 8) {
const x = @intCast(u8, int_val.toUnsignedInt(target));
try code.append(x);
return Result{ .appended = {} };
return Result.ok;
}
if (info.bits > 64) {
return Result{
@@ -491,12 +493,12 @@ pub fn generateSymbol(
}
},
}
return Result{ .appended = {} };
return Result.ok;
},
.Bool => {
const x: u8 = @boolToInt(typed_value.val.toBool());
try code.append(x);
return Result{ .appended = {} };
return Result.ok;
},
.Struct => {
if (typed_value.ty.containerLayout() == .Packed) {
@@ -521,9 +523,7 @@ pub fn generateSymbol(
.ty = field_ty,
.val = field_val,
}, &tmp_list, debug_output, reloc_info)) {
.appended => {
mem.copy(u8, code.items[current_pos..], tmp_list.items);
},
.ok => mem.copy(u8, code.items[current_pos..], tmp_list.items),
.fail => |em| return Result{ .fail = em },
}
} else {
@@ -532,7 +532,7 @@ pub fn generateSymbol(
bits += @intCast(u16, field_ty.bitSize(target));
}
return Result{ .appended = {} };
return Result.ok;
}
const struct_begin = code.items.len;
@@ -545,7 +545,7 @@ pub fn generateSymbol(
.ty = field_ty,
.val = field_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
const unpadded_field_end = code.items.len - struct_begin;
@@ -559,7 +559,7 @@ pub fn generateSymbol(
}
}
return Result{ .appended = {} };
return Result.ok;
},
.Union => {
const union_obj = typed_value.val.castTag(.@"union").?.data;
@@ -578,7 +578,7 @@ pub fn generateSymbol(
.ty = typed_value.ty.unionTagType().?,
.val = union_obj.tag,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
@@ -595,7 +595,7 @@ pub fn generateSymbol(
.ty = field_ty,
.val = union_obj.val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
@@ -610,12 +610,12 @@ pub fn generateSymbol(
.ty = union_ty.tag_ty,
.val = union_obj.tag,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
return Result{ .appended = {} };
return Result.ok;
},
.Optional => {
var opt_buf: Type.Payload.ElemType = undefined;
@@ -626,7 +626,7 @@ pub fn generateSymbol(
if (!payload_type.hasRuntimeBits()) {
try code.writer().writeByteNTimes(@boolToInt(is_pl), abi_size);
return Result{ .appended = {} };
return Result.ok;
}
if (typed_value.ty.optionalReprIsPayload()) {
@@ -635,7 +635,7 @@ pub fn generateSymbol(
.ty = payload_type,
.val = payload.data,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
} else if (!typed_value.val.isNull()) {
@@ -643,14 +643,14 @@ pub fn generateSymbol(
.ty = payload_type,
.val = typed_value.val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
} else {
try code.writer().writeByteNTimes(0, abi_size);
}
return Result{ .appended = {} };
return Result.ok;
}
const value = if (typed_value.val.castTag(.opt_payload)) |payload| payload.data else Value.initTag(.undef);
@@ -659,11 +659,11 @@ pub fn generateSymbol(
.ty = payload_type,
.val = value,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
return Result{ .appended = {} };
return Result.ok;
},
.ErrorUnion => {
const error_ty = typed_value.ty.errorUnionSet();
@@ -688,7 +688,7 @@ pub fn generateSymbol(
.ty = error_ty,
.val = if (is_payload) Value.initTag(.zero) else typed_value.val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
@@ -701,7 +701,7 @@ pub fn generateSymbol(
.ty = payload_ty,
.val = payload_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
const unpadded_end = code.items.len - begin;
@@ -720,7 +720,7 @@ pub fn generateSymbol(
.ty = error_ty,
.val = if (is_payload) Value.initTag(.zero) else typed_value.val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
const unpadded_end = code.items.len - begin;
@@ -732,7 +732,7 @@ pub fn generateSymbol(
}
}
return Result{ .appended = {} };
return Result.ok;
},
.ErrorSet => {
switch (typed_value.val.tag()) {
@@ -745,7 +745,7 @@ pub fn generateSymbol(
try code.writer().writeByteNTimes(0, @intCast(usize, Type.anyerror.abiSize(target)));
},
}
return Result{ .appended = {} };
return Result.ok;
},
.Vector => switch (typed_value.val.tag()) {
.bytes => {
@@ -753,7 +753,7 @@ pub fn generateSymbol(
const len = @intCast(usize, typed_value.ty.arrayLen());
try code.ensureUnusedCapacity(len);
code.appendSliceAssumeCapacity(bytes[0..len]);
return Result{ .appended = {} };
return Result.ok;
},
.aggregate => {
const elem_vals = typed_value.val.castTag(.aggregate).?.data;
@@ -764,11 +764,11 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = elem_val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
return Result{ .appended = {} };
return Result.ok;
},
.repeated => {
const array = typed_value.val.castTag(.repeated).?.data;
@@ -781,11 +781,11 @@ pub fn generateSymbol(
.ty = elem_ty,
.val = array,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
}
return Result{ .appended = {} };
return Result.ok;
},
.str_lit => {
const str_lit = typed_value.val.castTag(.str_lit).?.data;
@@ -793,7 +793,7 @@ pub fn generateSymbol(
const bytes = mod.string_literal_bytes.items[str_lit.index..][0..str_lit.len];
try code.ensureUnusedCapacity(str_lit.len);
code.appendSliceAssumeCapacity(bytes);
return Result{ .appended = {} };
return Result.ok;
},
else => unreachable,
},
@@ -834,7 +834,7 @@ fn lowerDeclRef(
.ty = slice_ptr_field_type,
.val = typed_value.val,
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
@@ -847,11 +847,11 @@ fn lowerDeclRef(
.ty = Type.usize,
.val = Value.initPayload(&slice_len.base),
}, code, debug_output, reloc_info)) {
.appended => {},
.ok => {},
.fail => |em| return Result{ .fail = em },
}
return Result{ .appended = {} };
return Result.ok;
}
const ptr_width = target.cpu.arch.ptrBitWidth();
@@ -859,7 +859,7 @@ fn lowerDeclRef(
const is_fn_body = decl.ty.zigTypeTag() == .Fn;
if (!is_fn_body and !decl.ty.hasRuntimeBits()) {
try code.writer().writeByteNTimes(0xaa, @divExact(ptr_width, 8));
return Result{ .appended = {} };
return Result.ok;
}
module.markDeclAlive(decl);
@@ -877,7 +877,7 @@ fn lowerDeclRef(
else => unreachable,
}
return Result{ .appended = {} };
return Result.ok;
}
pub fn errUnionPayloadOffset(payload_ty: Type, target: std.Target) u64 {