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stage2: reify opaque {}

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This commit is contained in:
Mitchell Hashimoto 2022-03-12 11:02:24 -08:00
parent 237d08389a
commit ef68420b78
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GPG Key ID: 523D5DC389D273BC
2 changed files with 52 additions and 2 deletions
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48
src/Sema.zig
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@ -12585,10 +12585,56 @@ fn zirReify(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.I
try new_decl.finalizeNewArena(&new_decl_arena);
return sema.analyzeDeclVal(block, src, new_decl);
},
.Opaque => {
const struct_val = union_val.val.castTag(.@"struct").?.data;
// decls: []const Declaration,
const decls_val = struct_val[0];
// Decls
const decls_slice_val = decls_val.castTag(.slice).?.data;
const decls_decl = decls_slice_val.ptr.pointerDecl().?;
try sema.ensureDeclAnalyzed(decls_decl);
if (decls_decl.ty.arrayLen() > 0) {
return sema.fail(block, src, "reified opaque must have no decls", .{});
}
const mod = sema.mod;
var new_decl_arena = std.heap.ArenaAllocator.init(sema.gpa);
errdefer new_decl_arena.deinit();
const new_decl_arena_allocator = new_decl_arena.allocator();
const opaque_obj = try new_decl_arena_allocator.create(Module.Opaque);
const opaque_ty_payload = try new_decl_arena_allocator.create(Type.Payload.Opaque);
opaque_ty_payload.* = .{
.base = .{ .tag = .@"opaque" },
.data = opaque_obj,
};
const opaque_ty = Type.initPayload(&opaque_ty_payload.base);
const opaque_val = try Value.Tag.ty.create(new_decl_arena_allocator, opaque_ty);
const type_name = try sema.createTypeName(block, .anon);
const new_decl = try mod.createAnonymousDeclNamed(block, .{
.ty = Type.type,
.val = opaque_val,
}, type_name);
new_decl.owns_tv = true;
errdefer mod.abortAnonDecl(new_decl);
opaque_obj.* = .{
.owner_decl = new_decl,
.node_offset = src.node_offset,
.namespace = .{
.parent = block.namespace,
.ty = opaque_ty,
.file_scope = block.getFileScope(),
},
};
try new_decl.finalizeNewArena(&new_decl_arena);
return sema.analyzeDeclVal(block, src, new_decl);
},
.Union => return sema.fail(block, src, "TODO: Sema.zirReify for Union", .{}),
.Fn => return sema.fail(block, src, "TODO: Sema.zirReify for Fn", .{}),
.BoundFn => @panic("TODO delete BoundFn from the language"),
.Opaque => return sema.fail(block, src, "TODO: Sema.zirReify for Opaque", .{}),
.Frame => return sema.fail(block, src, "TODO: Sema.zirReify for Frame", .{}),
}
}

6
test/behavior/type.zig
View File

@ -199,7 +199,11 @@ test "Type.ErrorUnion" {
}
test "Type.Opaque" {
if (builtin.zig_backend != .stage1) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
const Opaque = @Type(.{
.Opaque = .{