Commit 45da72c5b6

Vexu <git@vexu.eu>
2020-02-24 22:03:30
remove usages of `@typeId`, `@memberCount`, `@memberName` and `@memberType`
1 parent 1d06c82
lib/std/math/big/int.zig
@@ -1,5 +1,4 @@
 const std = @import("../../std.zig");
-const builtin = @import("builtin");
 const debug = std.debug;
 const testing = std.testing;
 const math = std.math;
@@ -9,8 +8,6 @@ const ArrayList = std.ArrayList;
 const maxInt = std.math.maxInt;
 const minInt = std.math.minInt;
 
-const TypeId = builtin.TypeId;
-
 pub const Limb = usize;
 pub const DoubleLimb = @IntType(false, 2 * Limb.bit_count);
 pub const Log2Limb = math.Log2Int(Limb);
@@ -270,7 +267,7 @@ pub const Int = struct {
         const T = @TypeOf(value);
 
         switch (@typeInfo(T)) {
-            TypeId.Int => |info| {
+            .Int => |info| {
                 const UT = if (T.is_signed) @IntType(false, T.bit_count - 1) else T;
 
                 try self.ensureCapacity(@sizeOf(UT) / @sizeOf(Limb));
@@ -294,7 +291,7 @@ pub const Int = struct {
                     }
                 }
             },
-            TypeId.ComptimeInt => {
+            .ComptimeInt => {
                 comptime var w_value = if (value < 0) -value else value;
 
                 const req_limbs = @divFloor(math.log2(w_value), Limb.bit_count) + 1;
@@ -332,8 +329,8 @@ pub const Int = struct {
     ///
     /// Returns an error if self cannot be narrowed into the requested type without truncation.
     pub fn to(self: Int, comptime T: type) ConvertError!T {
-        switch (@typeId(T)) {
-            TypeId.Int => {
+        switch (@typeInfo(T)) {
+            .Int => {
                 const UT = @IntType(false, T.bit_count);
 
                 if (self.bitCountTwosComp() > T.bit_count) {
lib/std/math/big/rational.zig
@@ -1,5 +1,4 @@
 const std = @import("../../std.zig");
-const builtin = @import("builtin");
 const debug = std.debug;
 const math = std.math;
 const mem = std.mem;
@@ -7,8 +6,6 @@ const testing = std.testing;
 const Allocator = mem.Allocator;
 const ArrayList = std.ArrayList;
 
-const TypeId = builtin.TypeId;
-
 const bn = @import("int.zig");
 const Limb = bn.Limb;
 const DoubleLimb = bn.DoubleLimb;
@@ -129,7 +126,7 @@ pub const Rational = struct {
     /// completely represent the provided float.
     pub fn setFloat(self: *Rational, comptime T: type, f: T) !void {
         // Translated from golang.go/src/math/big/rat.go.
-        debug.assert(@typeId(T) == builtin.TypeId.Float);
+        debug.assert(@typeInfo(T) == .Float);
 
         const UnsignedIntType = @IntType(false, T.bit_count);
         const f_bits = @bitCast(UnsignedIntType, f);
@@ -187,7 +184,7 @@ pub const Rational = struct {
     pub fn toFloat(self: Rational, comptime T: type) !T {
         // Translated from golang.go/src/math/big/rat.go.
         // TODO: Indicate whether the result is not exact.
-        debug.assert(@typeId(T) == builtin.TypeId.Float);
+        debug.assert(@typeInfo(T) == .Float);
 
         const fsize = T.bit_count;
         const BitReprType = @IntType(false, T.bit_count);
@@ -653,7 +650,7 @@ test "big.rational gcd one large" {
 }
 
 fn extractLowBits(a: Int, comptime T: type) T {
-    testing.expect(@typeId(T) == builtin.TypeId.Int);
+    testing.expect(@typeInfo(T) == .Int);
 
     if (T.bit_count <= Limb.bit_count) {
         return @truncate(T, a.limbs[0]);
lib/std/math/ln.zig
@@ -7,8 +7,6 @@
 const std = @import("../std.zig");
 const math = std.math;
 const expect = std.testing.expect;
-const builtin = @import("builtin");
-const TypeId = builtin.TypeId;
 
 /// Returns the natural logarithm of x.
 ///
@@ -19,21 +17,21 @@ const TypeId = builtin.TypeId;
 ///  - ln(nan)   = nan
 pub fn ln(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
-    switch (@typeId(T)) {
-        TypeId.ComptimeFloat => {
+    switch (@typeInfo(T)) {
+        .ComptimeFloat => {
             return @as(comptime_float, ln_64(x));
         },
-        TypeId.Float => {
+        .Float => {
             return switch (T) {
                 f32 => ln_32(x),
                 f64 => ln_64(x),
                 else => @compileError("ln not implemented for " ++ @typeName(T)),
             };
         },
-        TypeId.ComptimeInt => {
+        .ComptimeInt => {
             return @as(comptime_int, math.floor(ln_64(@as(f64, x))));
         },
-        TypeId.Int => {
+        .Int => {
             return @as(T, math.floor(ln_64(@as(f64, x))));
         },
         else => @compileError("ln not implemented for " ++ @typeName(T)),
lib/std/math/log.zig
@@ -6,8 +6,6 @@
 
 const std = @import("../std.zig");
 const math = std.math;
-const builtin = @import("builtin");
-const TypeId = builtin.TypeId;
 const expect = std.testing.expect;
 
 /// Returns the logarithm of x for the provided base.
@@ -16,24 +14,24 @@ pub fn log(comptime T: type, base: T, x: T) T {
         return math.log2(x);
     } else if (base == 10) {
         return math.log10(x);
-    } else if ((@typeId(T) == TypeId.Float or @typeId(T) == TypeId.ComptimeFloat) and base == math.e) {
+    } else if ((@typeInfo(T) == .Float or @typeInfo(T) == .ComptimeFloat) and base == math.e) {
         return math.ln(x);
     }
 
     const float_base = math.lossyCast(f64, base);
-    switch (@typeId(T)) {
-        TypeId.ComptimeFloat => {
+    switch (@typeInfo(T)) {
+        .ComptimeFloat => {
             return @as(comptime_float, math.ln(@as(f64, x)) / math.ln(float_base));
         },
-        TypeId.ComptimeInt => {
+        .ComptimeInt => {
             return @as(comptime_int, math.floor(math.ln(@as(f64, x)) / math.ln(float_base)));
         },
-        builtin.TypeId.Int => {
+        .Int => {
             // TODO implement integer log without using float math
             return @floatToInt(T, math.floor(math.ln(@intToFloat(f64, x)) / math.ln(float_base)));
         },
 
-        builtin.TypeId.Float => {
+        .Float => {
             switch (T) {
                 f32 => return @floatCast(f32, math.ln(@as(f64, x)) / math.ln(float_base)),
                 f64 => return math.ln(x) / math.ln(float_base),
lib/std/math/log10.zig
@@ -7,8 +7,6 @@
 const std = @import("../std.zig");
 const math = std.math;
 const testing = std.testing;
-const builtin = @import("builtin");
-const TypeId = builtin.TypeId;
 const maxInt = std.math.maxInt;
 
 /// Returns the base-10 logarithm of x.
@@ -20,21 +18,21 @@ const maxInt = std.math.maxInt;
 ///  - log10(nan)   = nan
 pub fn log10(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
-    switch (@typeId(T)) {
-        TypeId.ComptimeFloat => {
+    switch (@typeInfo(T)) {
+        .ComptimeFloat => {
             return @as(comptime_float, log10_64(x));
         },
-        TypeId.Float => {
+        .Float => {
             return switch (T) {
                 f32 => log10_32(x),
                 f64 => log10_64(x),
                 else => @compileError("log10 not implemented for " ++ @typeName(T)),
             };
         },
-        TypeId.ComptimeInt => {
+        .ComptimeInt => {
             return @as(comptime_int, math.floor(log10_64(@as(f64, x))));
         },
-        TypeId.Int => {
+        .Int => {
             return @floatToInt(T, math.floor(log10_64(@intToFloat(f64, x))));
         },
         else => @compileError("log10 not implemented for " ++ @typeName(T)),
lib/std/math/log2.zig
@@ -7,8 +7,6 @@
 const std = @import("../std.zig");
 const math = std.math;
 const expect = std.testing.expect;
-const builtin = @import("builtin");
-const TypeId = builtin.TypeId;
 const maxInt = std.math.maxInt;
 
 /// Returns the base-2 logarithm of x.
@@ -20,18 +18,18 @@ const maxInt = std.math.maxInt;
 ///  - log2(nan)   = nan
 pub fn log2(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
-    switch (@typeId(T)) {
-        TypeId.ComptimeFloat => {
+    switch (@typeInfo(T)) {
+        .ComptimeFloat => {
             return @as(comptime_float, log2_64(x));
         },
-        TypeId.Float => {
+        .Float => {
             return switch (T) {
                 f32 => log2_32(x),
                 f64 => log2_64(x),
                 else => @compileError("log2 not implemented for " ++ @typeName(T)),
             };
         },
-        TypeId.ComptimeInt => comptime {
+        .ComptimeInt => comptime {
             var result = 0;
             var x_shifted = x;
             while (b: {
@@ -40,7 +38,7 @@ pub fn log2(x: var) @TypeOf(x) {
             }) : (result += 1) {}
             return result;
         },
-        TypeId.Int => {
+        .Int => {
             return math.log2_int(T, x);
         },
         else => @compileError("log2 not implemented for " ++ @typeName(T)),
lib/std/meta/trait.zig
@@ -1,5 +1,5 @@
 const std = @import("../std.zig");
-const builtin = @import("builtin");
+const builtin = std.builtin;
 const mem = std.mem;
 const debug = std.debug;
 const testing = std.testing;
@@ -54,7 +54,7 @@ pub fn hasFn(comptime name: []const u8) TraitFn {
             if (!comptime isContainer(T)) return false;
             if (!comptime @hasDecl(T, name)) return false;
             const DeclType = @TypeOf(@field(T, name));
-            return @typeId(DeclType) == .Fn;
+            return @typeInfo(DeclType) == .Fn;
         }
     };
     return Closure.trait;
@@ -105,7 +105,7 @@ test "std.meta.trait.hasField" {
 pub fn is(comptime id: builtin.TypeId) TraitFn {
     const Closure = struct {
         pub fn trait(comptime T: type) bool {
-            return id == @typeId(T);
+            return id == @typeInfo(T);
         }
     };
     return Closure.trait;
@@ -123,7 +123,7 @@ pub fn isPtrTo(comptime id: builtin.TypeId) TraitFn {
     const Closure = struct {
         pub fn trait(comptime T: type) bool {
             if (!comptime isSingleItemPtr(T)) return false;
-            return id == @typeId(meta.Child(T));
+            return id == @typeInfo(meta.Child(T));
         }
     };
     return Closure.trait;
@@ -139,7 +139,7 @@ pub fn isSliceOf(comptime id: builtin.TypeId) TraitFn {
     const Closure = struct {
         pub fn trait(comptime T: type) bool {
             if (!comptime isSlice(T)) return false;
-            return id == @typeId(meta.Child(T));
+            return id == @typeInfo(meta.Child(T));
         }
     };
     return Closure.trait;
@@ -285,7 +285,7 @@ test "std.meta.trait.isIndexable" {
 }
 
 pub fn isNumber(comptime T: type) bool {
-    return switch (@typeId(T)) {
+    return switch (@typeInfo(T)) {
         .Int, .Float, .ComptimeInt, .ComptimeFloat => true,
         else => false,
     };
@@ -320,7 +320,7 @@ test "std.meta.trait.isConstPtr" {
 }
 
 pub fn isContainer(comptime T: type) bool {
-    return switch (@typeId(T)) {
+    return switch (@typeInfo(T)) {
         .Struct, .Union, .Enum => true,
         else => false,
     };
lib/std/special/build_runner.zig
@@ -126,7 +126,7 @@ pub fn main() !void {
 }
 
 fn runBuild(builder: *Builder) anyerror!void {
-    switch (@typeId(@TypeOf(root.build).ReturnType)) {
+    switch (@typeInfo(@TypeOf(root.build).ReturnType)) {
         .Void => root.build(builder),
         .ErrorUnion => try root.build(builder),
         else => @compileError("expected return type of build to be 'void' or '!void'"),
lib/std/zig/ast.zig
@@ -457,10 +457,9 @@ pub const Node = struct {
     }
 
     pub fn iterate(base: *Node, index: usize) ?*Node {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (base.id == @field(Id, @memberName(Id, i))) {
-                const T = @field(Node, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (base.id == @field(Id, f.name)) {
+                const T = @field(Node, f.name);
                 return @fieldParentPtr(T, "base", base).iterate(index);
             }
         }
@@ -468,10 +467,9 @@ pub const Node = struct {
     }
 
     pub fn firstToken(base: *const Node) TokenIndex {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (base.id == @field(Id, @memberName(Id, i))) {
-                const T = @field(Node, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (base.id == @field(Id, f.name)) {
+                const T = @field(Node, f.name);
                 return @fieldParentPtr(T, "base", base).firstToken();
             }
         }
@@ -479,10 +477,9 @@ pub const Node = struct {
     }
 
     pub fn lastToken(base: *const Node) TokenIndex {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (base.id == @field(Id, @memberName(Id, i))) {
-                const T = @field(Node, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (base.id == @field(Id, f.name)) {
+                const T = @field(Node, f.name);
                 return @fieldParentPtr(T, "base", base).lastToken();
             }
         }
@@ -490,10 +487,9 @@ pub const Node = struct {
     }
 
     pub fn typeToId(comptime T: type) Id {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (T == @field(Node, @memberName(Id, i))) {
-                return @field(Id, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (T == @field(Node, f.name)) {
+                return @field(Id, f.name);
             }
         }
         unreachable;
lib/std/zig/parser_test.zig
@@ -1410,7 +1410,7 @@ test "zig fmt: same-line comment after non-block if expression" {
 test "zig fmt: same-line comment on comptime expression" {
     try testCanonical(
         \\test "" {
-        \\    comptime assert(@typeId(T) == builtin.TypeId.Int); // must pass an integer to absInt
+        \\    comptime assert(@typeInfo(T) == .Int); // must pass an integer to absInt
         \\}
         \\
     );
lib/std/zig/render.zig
@@ -1,5 +1,4 @@
 const std = @import("../std.zig");
-const builtin = @import("builtin");
 const assert = std.debug.assert;
 const mem = std.mem;
 const ast = std.zig.ast;
@@ -14,7 +13,7 @@ pub const Error = error{
 
 /// Returns whether anything changed
 pub fn render(allocator: *mem.Allocator, stream: var, tree: *ast.Tree) (@TypeOf(stream).Child.Error || Error)!bool {
-    comptime assert(@typeId(@TypeOf(stream)) == builtin.TypeId.Pointer);
+    comptime assert(@typeInfo(@TypeOf(stream)) == .Pointer);
 
     var anything_changed: bool = false;
 
lib/std/build.zig
@@ -607,13 +607,13 @@ pub const Builder = struct {
     }
 
     fn typeToEnum(comptime T: type) TypeId {
-        return switch (@typeId(T)) {
-            builtin.TypeId.Int => TypeId.Int,
-            builtin.TypeId.Float => TypeId.Float,
-            builtin.TypeId.Bool => TypeId.Bool,
+        return switch (@typeInfo(T)) {
+            .Int => .Int,
+            .Float => .Float,
+            .Bool => .Bool,
             else => switch (T) {
-                []const u8 => TypeId.String,
-                []const []const u8 => TypeId.List,
+                []const u8 => .String,
+                []const []const u8 => .List,
                 else => @compileError("Unsupported type: " ++ @typeName(T)),
             },
         };
@@ -625,11 +625,11 @@ pub const Builder = struct {
 
     pub fn typeIdName(id: TypeId) []const u8 {
         return switch (id) {
-            TypeId.Bool => "bool",
-            TypeId.Int => "int",
-            TypeId.Float => "float",
-            TypeId.String => "string",
-            TypeId.List => "list",
+            .Bool => "bool",
+            .Int => "int",
+            .Float => "float",
+            .String => "string",
+            .List => "list",
         };
     }
 
lib/std/fmt.zig
@@ -405,7 +405,7 @@ pub fn formatType(
                 try format(context, Errors, output, "@{x}", .{@ptrToInt(&value)});
             }
         },
-        .Struct => {
+        .Struct => |StructT| {
             if (comptime std.meta.trait.hasFn("format")(T)) {
                 return value.format(fmt, options, context, Errors, output);
             }
@@ -416,27 +416,28 @@ pub fn formatType(
             }
             comptime var field_i = 0;
             try output(context, "{");
-            inline while (field_i < @memberCount(T)) : (field_i += 1) {
+            inline for (StructT.fields) |f| {
                 if (field_i == 0) {
                     try output(context, " .");
                 } else {
                     try output(context, ", .");
                 }
-                try output(context, @memberName(T, field_i));
+                try output(context, f.name);
                 try output(context, " = ");
-                try formatType(@field(value, @memberName(T, field_i)), fmt, options, context, Errors, output, max_depth - 1);
+                try formatType(@field(value, f.name), fmt, options, context, Errors, output, max_depth - 1);
+                field_i += 1;
             }
             try output(context, " }");
         },
         .Pointer => |ptr_info| switch (ptr_info.size) {
             .One => switch (@typeInfo(ptr_info.child)) {
-                builtin.TypeId.Array => |info| {
+                .Array => |info| {
                     if (info.child == u8) {
                         return formatText(value, fmt, options, context, Errors, output);
                     }
                     return format(context, Errors, output, "{}@{x}", .{ @typeName(T.Child), @ptrToInt(value) });
                 },
-                builtin.TypeId.Enum, builtin.TypeId.Union, builtin.TypeId.Struct => {
+                .Enum, .Union, .Struct => {
                     return formatType(value.*, fmt, options, context, Errors, output, max_depth);
                 },
                 else => return format(context, Errors, output, "{}@{x}", .{ @typeName(T.Child), @ptrToInt(value) }),
@@ -509,7 +510,7 @@ fn formatValue(
     }
 
     const T = @TypeOf(value);
-    switch (@typeId(T)) {
+    switch (@typeInfo(T)) {
         .Float => return formatFloatValue(value, fmt, options, context, Errors, output),
         .Int, .ComptimeInt => return formatIntValue(value, fmt, options, context, Errors, output),
         .Bool => return output(context, if (value) "true" else "false"),
lib/std/io.zig
@@ -831,7 +831,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
 
         //@BUG: inferred error issue. See: #1386
         fn deserializeInt(self: *Self, comptime T: type) (Error || error{EndOfStream})!T {
-            comptime assert(trait.is(builtin.TypeId.Int)(T) or trait.is(builtin.TypeId.Float)(T));
+            comptime assert(trait.is(.Int)(T) or trait.is(.Float)(T));
 
             const u8_bit_count = 8;
             const t_bit_count = comptime meta.bitCount(T);
@@ -880,9 +880,9 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
         /// Deserializes data into the type pointed to by `ptr`
         pub fn deserializeInto(self: *Self, ptr: var) !void {
             const T = @TypeOf(ptr);
-            comptime assert(trait.is(builtin.TypeId.Pointer)(T));
+            comptime assert(trait.is(.Pointer)(T));
 
-            if (comptime trait.isSlice(T) or comptime trait.isPtrTo(builtin.TypeId.Array)(T)) {
+            if (comptime trait.isSlice(T) or comptime trait.isPtrTo(.Array)(T)) {
                 for (ptr) |*v|
                     try self.deserializeInto(v);
                 return;
@@ -891,7 +891,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
             comptime assert(trait.isSingleItemPtr(T));
 
             const C = comptime meta.Child(T);
-            const child_type_id = @typeId(C);
+            const child_type_id = @typeInfo(C);
 
             //custom deserializer: fn(self: *Self, deserializer: var) !void
             if (comptime trait.hasFn("deserialize")(C)) return C.deserialize(ptr, self);
@@ -902,10 +902,10 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
             }
 
             switch (child_type_id) {
-                builtin.TypeId.Void => return,
-                builtin.TypeId.Bool => ptr.* = (try self.deserializeInt(u1)) > 0,
-                builtin.TypeId.Float, builtin.TypeId.Int => ptr.* = try self.deserializeInt(C),
-                builtin.TypeId.Struct => {
+                .Void => return,
+                .Bool => ptr.* = (try self.deserializeInt(u1)) > 0,
+                .Float, .Int => ptr.* = try self.deserializeInt(C),
+                .Struct => {
                     const info = @typeInfo(C).Struct;
 
                     inline for (info.fields) |*field_info| {
@@ -915,7 +915,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
                         if (FieldType == void or FieldType == u0) continue;
 
                         //it doesn't make any sense to read pointers
-                        if (comptime trait.is(builtin.TypeId.Pointer)(FieldType)) {
+                        if (comptime trait.is(.Pointer)(FieldType)) {
                             @compileError("Will not " ++ "read field " ++ name ++ " of struct " ++
                                 @typeName(C) ++ " because it " ++ "is of pointer-type " ++
                                 @typeName(FieldType) ++ ".");
@@ -924,7 +924,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
                         try self.deserializeInto(&@field(ptr, name));
                     }
                 },
-                builtin.TypeId.Union => {
+                .Union => {
                     const info = @typeInfo(C).Union;
                     if (info.tag_type) |TagType| {
                         //we avoid duplicate iteration over the enum tags
@@ -948,7 +948,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
                     @compileError("Cannot meaningfully deserialize " ++ @typeName(C) ++
                         " because it is an untagged union. Use a custom deserialize().");
                 },
-                builtin.TypeId.Optional => {
+                .Optional => {
                     const OC = comptime meta.Child(C);
                     const exists = (try self.deserializeInt(u1)) > 0;
                     if (!exists) {
@@ -960,7 +960,7 @@ pub fn Deserializer(comptime endian: builtin.Endian, comptime packing: Packing,
                     const val_ptr = &ptr.*.?;
                     try self.deserializeInto(val_ptr);
                 },
-                builtin.TypeId.Enum => {
+                .Enum => {
                     var value = try self.deserializeInt(@TagType(C));
                     ptr.* = try meta.intToEnum(C, value);
                 },
@@ -1009,7 +1009,7 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
 
         fn serializeInt(self: *Self, value: var) Error!void {
             const T = @TypeOf(value);
-            comptime assert(trait.is(builtin.TypeId.Int)(T) or trait.is(builtin.TypeId.Float)(T));
+            comptime assert(trait.is(.Int)(T) or trait.is(.Float)(T));
 
             const t_bit_count = comptime meta.bitCount(T);
             const u8_bit_count = comptime meta.bitCount(u8);
@@ -1058,11 +1058,11 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
                 return;
             }
 
-            switch (@typeId(T)) {
-                builtin.TypeId.Void => return,
-                builtin.TypeId.Bool => try self.serializeInt(@as(u1, @boolToInt(value))),
-                builtin.TypeId.Float, builtin.TypeId.Int => try self.serializeInt(value),
-                builtin.TypeId.Struct => {
+            switch (@typeInfo(T)) {
+                .Void => return,
+                .Bool => try self.serializeInt(@as(u1, @boolToInt(value))),
+                .Float, .Int => try self.serializeInt(value),
+                .Struct => {
                     const info = @typeInfo(T);
 
                     inline for (info.Struct.fields) |*field_info| {
@@ -1072,7 +1072,7 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
                         if (FieldType == void or FieldType == u0) continue;
 
                         //It doesn't make sense to write pointers
-                        if (comptime trait.is(builtin.TypeId.Pointer)(FieldType)) {
+                        if (comptime trait.is(.Pointer)(FieldType)) {
                             @compileError("Will not " ++ "serialize field " ++ name ++
                                 " of struct " ++ @typeName(T) ++ " because it " ++
                                 "is of pointer-type " ++ @typeName(FieldType) ++ ".");
@@ -1080,7 +1080,7 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
                         try self.serialize(@field(value, name));
                     }
                 },
-                builtin.TypeId.Union => {
+                .Union => {
                     const info = @typeInfo(T).Union;
                     if (info.tag_type) |TagType| {
                         const active_tag = meta.activeTag(value);
@@ -1101,7 +1101,7 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
                     @compileError("Cannot meaningfully serialize " ++ @typeName(T) ++
                         " because it is an untagged union. Use a custom serialize().");
                 },
-                builtin.TypeId.Optional => {
+                .Optional => {
                     if (value == null) {
                         try self.serializeInt(@as(u1, @boolToInt(false)));
                         return;
@@ -1112,10 +1112,10 @@ pub fn Serializer(comptime endian: builtin.Endian, comptime packing: Packing, co
                     const val_ptr = &value.?;
                     try self.serialize(val_ptr.*);
                 },
-                builtin.TypeId.Enum => {
+                .Enum => {
                     try self.serializeInt(@enumToInt(value));
                 },
-                else => @compileError("Cannot serialize " ++ @tagName(@typeId(T)) ++ " types (unimplemented)."),
+                else => @compileError("Cannot serialize " ++ @tagName(@typeInfo(T)) ++ " types (unimplemented)."),
             }
         }
     };
lib/std/math.zig
@@ -1,6 +1,4 @@
-const builtin = @import("builtin");
 const std = @import("std.zig");
-const TypeId = builtin.TypeId;
 const assert = std.debug.assert;
 const testing = std.testing;
 
@@ -89,7 +87,7 @@ pub const snan = @import("math/nan.zig").snan;
 pub const inf = @import("math/inf.zig").inf;
 
 pub fn approxEq(comptime T: type, x: T, y: T, epsilon: T) bool {
-    assert(@typeId(T) == TypeId.Float);
+    assert(@typeInfo(T) == .Float);
     return fabs(x - y) < epsilon;
 }
 
@@ -198,7 +196,7 @@ test "" {
 }
 
 pub fn floatMantissaBits(comptime T: type) comptime_int {
-    assert(@typeId(T) == builtin.TypeId.Float);
+    assert(@typeInfo(T) == .Float);
 
     return switch (T.bit_count) {
         16 => 10,
@@ -211,7 +209,7 @@ pub fn floatMantissaBits(comptime T: type) comptime_int {
 }
 
 pub fn floatExponentBits(comptime T: type) comptime_int {
-    assert(@typeId(T) == builtin.TypeId.Float);
+    assert(@typeInfo(T) == .Float);
 
     return switch (T.bit_count) {
         16 => 5,
@@ -526,7 +524,7 @@ fn testOverflow() void {
 
 pub fn absInt(x: var) !@TypeOf(x) {
     const T = @TypeOf(x);
-    comptime assert(@typeId(T) == builtin.TypeId.Int); // must pass an integer to absInt
+    comptime assert(@typeInfo(T) == .Int); // must pass an integer to absInt
     comptime assert(T.is_signed); // must pass a signed integer to absInt
 
     if (x == minInt(@TypeOf(x))) {
@@ -560,7 +558,7 @@ fn testAbsFloat() void {
 pub fn divTrunc(comptime T: type, numerator: T, denominator: T) !T {
     @setRuntimeSafety(false);
     if (denominator == 0) return error.DivisionByZero;
-    if (@typeId(T) == builtin.TypeId.Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
+    if (@typeInfo(T) == .Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
     return @divTrunc(numerator, denominator);
 }
 
@@ -581,7 +579,7 @@ fn testDivTrunc() void {
 pub fn divFloor(comptime T: type, numerator: T, denominator: T) !T {
     @setRuntimeSafety(false);
     if (denominator == 0) return error.DivisionByZero;
-    if (@typeId(T) == builtin.TypeId.Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
+    if (@typeInfo(T) == .Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
     return @divFloor(numerator, denominator);
 }
 
@@ -602,7 +600,7 @@ fn testDivFloor() void {
 pub fn divExact(comptime T: type, numerator: T, denominator: T) !T {
     @setRuntimeSafety(false);
     if (denominator == 0) return error.DivisionByZero;
-    if (@typeId(T) == builtin.TypeId.Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
+    if (@typeInfo(T) == .Int and T.is_signed and numerator == minInt(T) and denominator == -1) return error.Overflow;
     const result = @divTrunc(numerator, denominator);
     if (result * denominator != numerator) return error.UnexpectedRemainder;
     return result;
@@ -727,8 +725,8 @@ test "math.negateCast" {
 /// Cast an integer to a different integer type. If the value doesn't fit,
 /// return an error.
 pub fn cast(comptime T: type, x: var) (error{Overflow}!T) {
-    comptime assert(@typeId(T) == builtin.TypeId.Int); // must pass an integer
-    comptime assert(@typeId(@TypeOf(x)) == builtin.TypeId.Int); // must pass an integer
+    comptime assert(@typeInfo(T) == .Int); // must pass an integer
+    comptime assert(@typeInfo(@TypeOf(x)) == .Int); // must pass an integer
     if (maxInt(@TypeOf(x)) > maxInt(T) and x > maxInt(T)) {
         return error.Overflow;
     } else if (minInt(@TypeOf(x)) < minInt(T) and x < minInt(T)) {
@@ -793,7 +791,7 @@ fn testFloorPowerOfTwo() void {
 /// Only unsigned integers can be used. Zero is not an allowed input.
 /// Result is a type with 1 more bit than the input type.
 pub fn ceilPowerOfTwoPromote(comptime T: type, value: T) @IntType(T.is_signed, T.bit_count + 1) {
-    comptime assert(@typeId(T) == builtin.TypeId.Int);
+    comptime assert(@typeInfo(T) == .Int);
     comptime assert(!T.is_signed);
     assert(value != 0);
     comptime const PromotedType = @IntType(T.is_signed, T.bit_count + 1);
@@ -805,7 +803,7 @@ pub fn ceilPowerOfTwoPromote(comptime T: type, value: T) @IntType(T.is_signed, T
 /// Only unsigned integers can be used. Zero is not an allowed input.
 /// If the value doesn't fit, returns an error.
 pub fn ceilPowerOfTwo(comptime T: type, value: T) (error{Overflow}!T) {
-    comptime assert(@typeId(T) == builtin.TypeId.Int);
+    comptime assert(@typeInfo(T) == .Int);
     comptime assert(!T.is_signed);
     comptime const PromotedType = @IntType(T.is_signed, T.bit_count + 1);
     comptime const overflowBit = @as(PromotedType, 1) << T.bit_count;
@@ -878,10 +876,10 @@ test "std.math.log2_int_ceil" {
 
 pub fn lossyCast(comptime T: type, value: var) T {
     switch (@typeInfo(@TypeOf(value))) {
-        builtin.TypeId.Int => return @intToFloat(T, value),
-        builtin.TypeId.Float => return @floatCast(T, value),
-        builtin.TypeId.ComptimeInt => return @as(T, value),
-        builtin.TypeId.ComptimeFloat => return @as(T, value),
+        .Int => return @intToFloat(T, value),
+        .Float => return @floatCast(T, value),
+        .ComptimeInt => return @as(T, value),
+        .ComptimeFloat => return @as(T, value),
         else => @compileError("bad type"),
     }
 }
lib/std/meta.zig
@@ -536,9 +536,8 @@ test "intToEnum with error return" {
 pub const IntToEnumError = error{InvalidEnumTag};
 
 pub fn intToEnum(comptime Tag: type, tag_int: var) IntToEnumError!Tag {
-    comptime var i = 0;
-    inline while (i != @memberCount(Tag)) : (i += 1) {
-        const this_tag_value = @field(Tag, @memberName(Tag, i));
+    inline for (@typeInfo(Tag).Enum.fields) |f| {
+        const this_tag_value = @field(Tag, f.name);
         if (tag_int == @enumToInt(this_tag_value)) {
             return this_tag_value;
         }
lib/std/thread.zig
@@ -158,7 +158,7 @@ pub const Thread = struct {
                 };
                 fn threadMain(raw_arg: windows.LPVOID) callconv(.C) windows.DWORD {
                     const arg = if (@sizeOf(Context) == 0) {} else @ptrCast(*Context, @alignCast(@alignOf(Context), raw_arg)).*;
-                    switch (@typeId(@TypeOf(startFn).ReturnType)) {
+                    switch (@typeInfo(@TypeOf(startFn).ReturnType)) {
                         .Int => {
                             return startFn(arg);
                         },
@@ -201,7 +201,7 @@ pub const Thread = struct {
             fn linuxThreadMain(ctx_addr: usize) callconv(.C) u8 {
                 const arg = if (@sizeOf(Context) == 0) {} else @intToPtr(*const Context, ctx_addr).*;
 
-                switch (@typeId(@TypeOf(startFn).ReturnType)) {
+                switch (@typeInfo(@TypeOf(startFn).ReturnType)) {
                     .Int => {
                         return startFn(arg);
                     },
src-self-hosted/ir.zig
@@ -76,20 +76,18 @@ pub const Inst = struct {
     }
 
     pub fn typeToId(comptime T: type) Id {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (T == @field(Inst, @memberName(Id, i))) {
-                return @field(Id, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (T == @field(Inst, f.name)) {
+                return @field(Id, f.name);
             }
         }
         unreachable;
     }
 
     pub fn dump(base: *const Inst) void {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (base.id == @field(Id, @memberName(Id, i))) {
-                const T = @field(Inst, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (base.id == @field(Id, f.name)) {
+                const T = @field(Inst, f.name);
                 std.debug.warn("#{} = {}(", .{ base.debug_id, @tagName(base.id) });
                 @fieldParentPtr(T, "base", base).dump();
                 std.debug.warn(")", .{});
@@ -100,10 +98,9 @@ pub const Inst = struct {
     }
 
     pub fn hasSideEffects(base: *const Inst) bool {
-        comptime var i = 0;
-        inline while (i < @memberCount(Id)) : (i += 1) {
-            if (base.id == @field(Id, @memberName(Id, i))) {
-                const T = @field(Inst, @memberName(Id, i));
+        inline for (@typeInfo(Id).Enum.fields) |f| {
+            if (base.id == @field(Id, f.name)) {
+                const T = @field(Inst, f.name);
                 return @fieldParentPtr(T, "base", base).hasSideEffects();
             }
         }
@@ -1805,21 +1802,19 @@ pub const Builder = struct {
         };
 
         // Look at the params and ref() other instructions
-        comptime var i = 0;
-        inline while (i < @memberCount(I.Params)) : (i += 1) {
-            const FieldType = comptime @TypeOf(@field(@as(I.Params, undefined), @memberName(I.Params, i)));
-            switch (FieldType) {
-                *Inst => @field(inst.params, @memberName(I.Params, i)).ref(self),
-                *BasicBlock => @field(inst.params, @memberName(I.Params, i)).ref(self),
-                ?*Inst => if (@field(inst.params, @memberName(I.Params, i))) |other| other.ref(self),
+        inline for (@typeInfo(I.Params).Struct.fields) |f| {
+            switch (f.fiedl_type) {
+                *Inst => @field(inst.params, f.name).ref(self),
+                *BasicBlock => @field(inst.params, f.name).ref(self),
+                ?*Inst => if (@field(inst.params, f.name)) |other| other.ref(self),
                 []*Inst => {
                     // TODO https://github.com/ziglang/zig/issues/1269
-                    for (@field(inst.params, @memberName(I.Params, i))) |other|
+                    for (@field(inst.params, f.name)) |other|
                         other.ref(self);
                 },
                 []*BasicBlock => {
                     // TODO https://github.com/ziglang/zig/issues/1269
-                    for (@field(inst.params, @memberName(I.Params, i))) |other|
+                    for (@field(inst.params, f.name)) |other|
                         other.ref(self);
                 },
                 Type.Pointer.Mut,
@@ -1831,7 +1826,7 @@ pub const Builder = struct {
                 => {},
                 // it's ok to add more types here, just make sure that
                 // any instructions and basic blocks are ref'd appropriately
-                else => @compileError("unrecognized type in Params: " ++ @typeName(FieldType)),
+                else => @compileError("unrecognized type in Params: " ++ @typeName(f.field_type)),
             }
         }
 
src-self-hosted/translate_c.zig
@@ -5381,15 +5381,15 @@ fn parseCPrimaryExpr(c: *Context, it: *CTokenList.Iterator, source: []const u8,
                 return error.ParseError;
             }
 
-            //if (@typeId(@TypeOf(x)) == .Pointer)
+            //if (@typeInfo(@TypeOf(x)) == .Pointer)
             //    @ptrCast(dest, x)
-            //else if (@typeId(@TypeOf(x)) == .Integer)
+            //else if (@typeInfo(@TypeOf(x)) == .Integer)
             //    @intToPtr(dest, x)
             //else
             //    @as(dest, x)
 
             const if_1 = try transCreateNodeIf(c);
-            const type_id_1 = try transCreateNodeBuiltinFnCall(c, "@typeId");
+            const type_id_1 = try transCreateNodeBuiltinFnCall(c, "@typeInfo");
             const type_of_1 = try transCreateNodeBuiltinFnCall(c, "@TypeOf");
             try type_id_1.params.push(&type_of_1.base);
             try type_of_1.params.push(node_to_cast);
@@ -5416,7 +5416,7 @@ fn parseCPrimaryExpr(c: *Context, it: *CTokenList.Iterator, source: []const u8,
             if_1.@"else" = else_1;
 
             const if_2 = try transCreateNodeIf(c);
-            const type_id_2 = try transCreateNodeBuiltinFnCall(c, "@typeId");
+            const type_id_2 = try transCreateNodeBuiltinFnCall(c, "@typeInfo");
             const type_of_2 = try transCreateNodeBuiltinFnCall(c, "@TypeOf");
             try type_id_2.params.push(&type_of_2.base);
             try type_of_2.params.push(node_to_cast);
test/stage1/behavior/bugs/3742.zig
@@ -17,7 +17,7 @@ pub const GET = struct {
 };
 
 pub fn isCommand(comptime T: type) bool {
-    const tid = @typeId(T);
+    const tid = @typeInfo(T);
     return (tid == .Struct or tid == .Enum or tid == .Union) and
         @hasDecl(T, "Redis") and @hasDecl(T.Redis, "Command");
 }
test/stage1/behavior/enum.zig
@@ -96,8 +96,8 @@ test "enum type" {
     const bar = Bar.B;
 
     expect(bar == Bar.B);
-    expect(@memberCount(Foo) == 3);
-    expect(@memberCount(Bar) == 4);
+    expect(@typeInfo(Foo).Union.fields.len == 3);
+    expect(@typeInfo(Bar).Enum.fields.len == 4);
     expect(@sizeOf(Foo) == @sizeOf(FooNoVoid));
     expect(@sizeOf(Bar) == 1);
 }
test/stage1/behavior/error.zig
@@ -3,7 +3,6 @@ const expect = std.testing.expect;
 const expectError = std.testing.expectError;
 const expectEqual = std.testing.expectEqual;
 const mem = std.mem;
-const builtin = @import("builtin");
 
 pub fn foo() anyerror!i32 {
     const x = try bar();
@@ -84,8 +83,8 @@ test "error union type " {
 fn testErrorUnionType() void {
     const x: anyerror!i32 = 1234;
     if (x) |value| expect(value == 1234) else |_| unreachable;
-    expect(@typeId(@TypeOf(x)) == builtin.TypeId.ErrorUnion);
-    expect(@typeId(@TypeOf(x).ErrorSet) == builtin.TypeId.ErrorSet);
+    expect(@typeInfo(@TypeOf(x)) == .ErrorUnion);
+    expect(@typeInfo(@TypeOf(x).ErrorSet) == .ErrorSet);
     expect(@TypeOf(x).ErrorSet == anyerror);
 }
 
@@ -100,7 +99,7 @@ const MyErrSet = error{
 };
 
 fn testErrorSetType() void {
-    expect(@memberCount(MyErrSet) == 2);
+    expect(@typeInfo(MyErrSet).ErrorSet.?.len == 2);
 
     const a: MyErrSet!i32 = 5678;
     const b: MyErrSet!i32 = MyErrSet.OutOfMemory;
test/stage1/behavior/eval.zig
@@ -654,8 +654,8 @@ test "call method with comptime pass-by-non-copying-value self parameter" {
     expect(b == 2);
 }
 
-test "@tagName of @typeId" {
-    const str = @tagName(@typeId(u8));
+test "@tagName of @typeInfo" {
+    const str = @tagName(@typeInfo(u8));
     expect(std.mem.eql(u8, str, "Int"));
 }
 
test/stage1/behavior/misc.zig
@@ -407,7 +407,6 @@ fn testArray2DConstDoublePtr(ptr: *const f32) void {
     expect(ptr2[1] == 2.0);
 }
 
-const Tid = builtin.TypeId;
 const AStruct = struct {
     x: i32,
 };
@@ -424,40 +423,6 @@ const AUnion = union {
     Two: void,
 };
 
-test "@typeId" {
-    comptime {
-        expect(@typeId(type) == Tid.Type);
-        expect(@typeId(void) == Tid.Void);
-        expect(@typeId(bool) == Tid.Bool);
-        expect(@typeId(noreturn) == Tid.NoReturn);
-        expect(@typeId(i8) == Tid.Int);
-        expect(@typeId(u8) == Tid.Int);
-        expect(@typeId(i64) == Tid.Int);
-        expect(@typeId(u64) == Tid.Int);
-        expect(@typeId(f32) == Tid.Float);
-        expect(@typeId(f64) == Tid.Float);
-        expect(@typeId(*f32) == Tid.Pointer);
-        expect(@typeId([2]u8) == Tid.Array);
-        expect(@typeId(AStruct) == Tid.Struct);
-        expect(@typeId(@TypeOf(1)) == Tid.ComptimeInt);
-        expect(@typeId(@TypeOf(1.0)) == Tid.ComptimeFloat);
-        expect(@typeId(@TypeOf(undefined)) == Tid.Undefined);
-        expect(@typeId(@TypeOf(null)) == Tid.Null);
-        expect(@typeId(?i32) == Tid.Optional);
-        expect(@typeId(anyerror!i32) == Tid.ErrorUnion);
-        expect(@typeId(anyerror) == Tid.ErrorSet);
-        expect(@typeId(AnEnum) == Tid.Enum);
-        expect(@typeId(@TypeOf(AUnionEnum.One)) == Tid.Enum);
-        expect(@typeId(AUnionEnum) == Tid.Union);
-        expect(@typeId(AUnion) == Tid.Union);
-        expect(@typeId(fn () void) == Tid.Fn);
-        expect(@typeId(@TypeOf(builtin)) == Tid.Type);
-        // TODO bound fn
-        // TODO arg tuple
-        // TODO opaque
-    }
-}
-
 test "@typeName" {
     const Struct = struct {};
     const Union = union {
test/stage1/behavior/reflection.zig
@@ -26,36 +26,6 @@ fn dummy(a: bool, b: i32, c: f32) i32 {
     return 1234;
 }
 
-test "reflection: struct member types and names" {
-    comptime {
-        expect(@memberCount(Foo) == 3);
-
-        expect(@memberType(Foo, 0) == i32);
-        expect(@memberType(Foo, 1) == bool);
-        expect(@memberType(Foo, 2) == void);
-
-        expect(mem.eql(u8, @memberName(Foo, 0), "one"));
-        expect(mem.eql(u8, @memberName(Foo, 1), "two"));
-        expect(mem.eql(u8, @memberName(Foo, 2), "three"));
-    }
-}
-
-test "reflection: enum member types and names" {
-    comptime {
-        expect(@memberCount(Bar) == 4);
-
-        expect(@memberType(Bar, 0) == void);
-        expect(@memberType(Bar, 1) == i32);
-        expect(@memberType(Bar, 2) == bool);
-        expect(@memberType(Bar, 3) == f64);
-
-        expect(mem.eql(u8, @memberName(Bar, 0), "One"));
-        expect(mem.eql(u8, @memberName(Bar, 1), "Two"));
-        expect(mem.eql(u8, @memberName(Bar, 2), "Three"));
-        expect(mem.eql(u8, @memberName(Bar, 3), "Four"));
-    }
-}
-
 test "reflection: @field" {
     var f = Foo{
         .one = 42,
test/stage1/behavior/union.zig
@@ -531,7 +531,7 @@ var glbl: Foo1 = undefined;
 
 test "global union with single field is correctly initialized" {
     glbl = Foo1{
-        .f = @memberType(Foo1, 0){ .x = 123 },
+        .f = @typeInfo(Foo1).Union.fields[0].field_type{ .x = 123 },
     };
     expect(glbl.f.x == 123);
 }
test/compile_errors.zig
@@ -2942,14 +2942,6 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
         "tmp.zig:11:13: error: error.B not a member of error set 'Set2'",
     });
 
-    cases.add("@memberCount of error",
-        \\comptime {
-        \\    _ = @memberCount(anyerror);
-        \\}
-    , &[_][]const u8{
-        "tmp.zig:2:9: error: global error set member count not available at comptime",
-    });
-
     cases.add("duplicate error value in error set",
         \\const Foo = error {
         \\    Bar,
@@ -5964,76 +5956,6 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
         "tmp.zig:2:32: error: arg index 2 out of bounds; 'fn(i32, i32) i32' has 2 arguments",
     });
 
-    cases.add("@memberType on unsupported type",
-        \\comptime {
-        \\    _ = @memberType(i32, 0);
-        \\}
-    , &[_][]const u8{
-        "tmp.zig:2:21: error: type 'i32' does not support @memberType",
-    });
-
-    cases.add("@memberType on enum",
-        \\comptime {
-        \\    _ = @memberType(Foo, 0);
-        \\}
-        \\const Foo = enum {A,};
-    , &[_][]const u8{
-        "tmp.zig:2:21: error: type 'Foo' does not support @memberType",
-    });
-
-    cases.add("@memberType struct out of bounds",
-        \\comptime {
-        \\    _ = @memberType(Foo, 0);
-        \\}
-        \\const Foo = struct {};
-    , &[_][]const u8{
-        "tmp.zig:2:26: error: member index 0 out of bounds; 'Foo' has 0 members",
-    });
-
-    cases.add("@memberType union out of bounds",
-        \\comptime {
-        \\    _ = @memberType(Foo, 1);
-        \\}
-        \\const Foo = union {A: void,};
-    , &[_][]const u8{
-        "tmp.zig:2:26: error: member index 1 out of bounds; 'Foo' has 1 members",
-    });
-
-    cases.add("@memberName on unsupported type",
-        \\comptime {
-        \\    _ = @memberName(i32, 0);
-        \\}
-    , &[_][]const u8{
-        "tmp.zig:2:21: error: type 'i32' does not support @memberName",
-    });
-
-    cases.add("@memberName struct out of bounds",
-        \\comptime {
-        \\    _ = @memberName(Foo, 0);
-        \\}
-        \\const Foo = struct {};
-    , &[_][]const u8{
-        "tmp.zig:2:26: error: member index 0 out of bounds; 'Foo' has 0 members",
-    });
-
-    cases.add("@memberName enum out of bounds",
-        \\comptime {
-        \\    _ = @memberName(Foo, 1);
-        \\}
-        \\const Foo = enum {A,};
-    , &[_][]const u8{
-        "tmp.zig:2:26: error: member index 1 out of bounds; 'Foo' has 1 members",
-    });
-
-    cases.add("@memberName union out of bounds",
-        \\comptime {
-        \\    _ = @memberName(Foo, 1);
-        \\}
-        \\const Foo = union {A:i32,};
-    , &[_][]const u8{
-        "tmp.zig:2:26: error: member index 1 out of bounds; 'Foo' has 1 members",
-    });
-
     cases.add("calling var args extern function, passing array instead of pointer",
         \\export fn entry() void {
         \\    foo("hello".*,);
test/translate_c.zig
@@ -1354,7 +1354,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
     cases.add("macro pointer cast",
         \\#define NRF_GPIO ((NRF_GPIO_Type *) NRF_GPIO_BASE)
     , &[_][]const u8{
-        \\pub const NRF_GPIO = if (@typeId(@TypeOf(NRF_GPIO_BASE)) == .Pointer) @ptrCast([*c]NRF_GPIO_Type, NRF_GPIO_BASE) else if (@typeId(@TypeOf(NRF_GPIO_BASE)) == .Int) @intToPtr([*c]NRF_GPIO_Type, NRF_GPIO_BASE) else @as([*c]NRF_GPIO_Type, NRF_GPIO_BASE);
+        \\pub const NRF_GPIO = if (@typeInfo(@TypeOf(NRF_GPIO_BASE)) == .Pointer) @ptrCast([*c]NRF_GPIO_Type, NRF_GPIO_BASE) else if (@typeInfo(@TypeOf(NRF_GPIO_BASE)) == .Int) @intToPtr([*c]NRF_GPIO_Type, NRF_GPIO_BASE) else @as([*c]NRF_GPIO_Type, NRF_GPIO_BASE);
     });
 
     cases.add("basic macro function",
@@ -2538,11 +2538,11 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\#define FOO(bar) baz((void *)(baz))
         \\#define BAR (void*) a
     , &[_][]const u8{
-        \\pub inline fn FOO(bar: var) @TypeOf(baz(if (@typeId(@TypeOf(baz)) == .Pointer) @ptrCast(*c_void, baz) else if (@typeId(@TypeOf(baz)) == .Int) @intToPtr(*c_void, baz) else @as(*c_void, baz))) {
-        \\    return baz(if (@typeId(@TypeOf(baz)) == .Pointer) @ptrCast(*c_void, baz) else if (@typeId(@TypeOf(baz)) == .Int) @intToPtr(*c_void, baz) else @as(*c_void, baz));
+        \\pub inline fn FOO(bar: var) @TypeOf(baz(if (@typeInfo(@TypeOf(baz)) == .Pointer) @ptrCast(*c_void, baz) else if (@typeInfo(@TypeOf(baz)) == .Int) @intToPtr(*c_void, baz) else @as(*c_void, baz))) {
+        \\    return baz(if (@typeInfo(@TypeOf(baz)) == .Pointer) @ptrCast(*c_void, baz) else if (@typeInfo(@TypeOf(baz)) == .Int) @intToPtr(*c_void, baz) else @as(*c_void, baz));
         \\}
     ,
-        \\pub const BAR = if (@typeId(@TypeOf(a)) == .Pointer) @ptrCast(*c_void, a) else if (@typeId(@TypeOf(a)) == .Int) @intToPtr(*c_void, a) else @as(*c_void, a);
+        \\pub const BAR = if (@typeInfo(@TypeOf(a)) == .Pointer) @ptrCast(*c_void, a) else if (@typeInfo(@TypeOf(a)) == .Int) @intToPtr(*c_void, a) else @as(*c_void, a);
     });
 
     cases.add("macro conditional operator",