Commit 7514b71286a8659c2917b78acf7f36b5da7e9657 | ix

CHANGELOG.md+2

...	@@ -1,6 +1,7 @@	...	@@ -1,6 +1,7 @@
1	## 0.1.4	1	## 0.1.4
2		2
3	- feat: implement basic struct types (#42)	3	- feat: implement basic struct types (#42)
		4	- feat: implement basic array types (#67)
4	- feat: implement string identifiers (#54)	5	- feat: implement string identifiers (#54)
5	- feat: include a `README.html` alongside compiler with documentation and code samples.	6	- feat: include a `README.html` alongside compiler with documentation and code samples.
6	- feat(transform): include a warning for leading zero in numbers	7	- feat(transform): include a warning for leading zero in numbers
...	@@ -9,6 +10,7 @@	...	@@ -9,6 +10,7 @@
9	- fix(sema): handle recursive function calls	10	- fix(sema): handle recursive function calls
10	- fix(sema): quit block analysis when hitting `noreturn`	11	- fix(sema): quit block analysis when hitting `noreturn`
11	- fix(sema): binary type resolution with opaque and numeric literals no longer crash	12	- fix(sema): binary type resolution with opaque and numeric literals no longer crash
		13	- fix(sema): false positive warning for numeric int ambiguity when it was always float
12		14
13	## 0.1.3	15	## 0.1.3
14		16

build.zig+6-6

...	@@ -117,12 +117,12 @@ pub fn build(b: *std.Build) void {	...	@@ -117,12 +117,12 @@ pub fn build(b: *std.Build) void {
117	const win_version: OsVersion = .{ .windows = .win7 };	117	const win_version: OsVersion = .{ .windows = .win7 };
118		118
119	inline for (.{	119	inline for (.{
120	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .linux, .abi = .musl, .os_version_min = linux_version }),	120	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .linux, .abi = .musl, .os_version_min = linux_version, .cpu_model = .baseline }),
121	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .linux, .abi = .musl, .os_version_min = linux_version }),	121	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .linux, .abi = .musl, .os_version_min = linux_version, .cpu_model = .baseline }),
122	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .macos, .os_version_min = mac_version }),	122	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .macos, .os_version_min = mac_version, .cpu_model = .baseline }),
123	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .macos, .os_version_min = mac_version }),	123	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .macos, .os_version_min = mac_version, .cpu_model = .baseline }),
124	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .windows, .os_version_min = win_version, .abi = .gnu }),	124	b.resolveTargetQuery(.{ .cpu_arch = .x86_64, .os_tag = .windows, .os_version_min = win_version, .abi = .gnu, .cpu_model = .baseline }),
125	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .windows, .os_version_min = win_version, .abi = .gnu }),	125	b.resolveTargetQuery(.{ .cpu_arch = .aarch64, .os_tag = .windows, .os_version_min = win_version, .abi = .gnu, .cpu_model = .baseline }),
126	}) \|cross_target\| {	126	}) \|cross_target\| {
127	const name = std.fmt.allocPrint(	127	const name = std.fmt.allocPrint(
128	b.allocator,	128	b.allocator,

src/core/Air.Dump.zig+39-6

...	@@ -92,6 +92,7 @@ pub const State = struct {	...	@@ -92,6 +92,7 @@ pub const State = struct {
92	.lt,	92	.lt,
93	.gt,	93	.gt,
94	.eq,	94	.eq,
		95	.index,
95	=> \|comptime_tag\| {	96	=> \|comptime_tag\| {
96	const bin: Air.Bin = air.instData(comptime_tag, inst);	97	const bin: Air.Bin = air.instData(comptime_tag, inst);
97	try w.writeAll("(");	98	try w.writeAll("(");
...	@@ -185,6 +186,15 @@ pub const State = struct {	...	@@ -185,6 +186,15 @@ pub const State = struct {
185	try s.newline(w);	186	try s.newline(w);
186	try w.writeAll("})");	187	try w.writeAll("})");
187	},	188	},
		189	.array_init => {
		190	const array_init: Air.ArrayInit = air.instData(.array_init, inst);
		191	const array_type = array_init.ty.toArrayType(s.ip).?;
		192
		193	try w.writeAll("(");
		194	try s.dumpValue(w, array_type.item_type.value());
		195	try s.dumpRefList(w, array_init.list.slice(air), '[', ']');
		196	try w.writeAll(")");
		197	},
188	}	198	}
189	}	199	}
190		200
...	@@ -337,6 +347,31 @@ pub const State = struct {	...	@@ -337,6 +347,31 @@ pub const State = struct {
337	try w.writeAll(">");	347	try w.writeAll(">");
338	try tty.setColor(w, .reset);	348	try tty.setColor(w, .reset);
339	},	349	},
		350	.array_type => \|array_type\| {
		351	try w.writeAll("[]");
		352	try s.dumpValue(w, array_type.item_type.value());
		353	},
		354	.array_value => \|array_value\| {
		355	try tty.setColor(w, .bright_black);
		356	try w.writeAll("<");
		357	try tty.setColor(w, .bright_magenta);
		358	try s.dumpValue(w, array_value.type.value());
		359	try tty.setColor(w, .bright_black);
		360	try w.writeAll(", ");
		361	try tty.setColor(w, .reset);
		362	try w.writeAll("[");
		363
		364	for (array_value.items, 0..) \|value, i\| {
		365	if (i != 0)
		366	try w.writeAll(", ");
		367	try s.dumpValue(w, value);
		368	}
		369
		370	try w.writeAll("]");
		371	try tty.setColor(w, .bright_black);
		372	try w.writeAll(">");
		373	try tty.setColor(w, .reset);
		374	},
340	}	375	}
341	}	376	}
342		377
...	@@ -388,7 +423,7 @@ pub fn format(	...	@@ -388,7 +423,7 @@ pub fn format(
388	var state = State{	423	var state = State{
389	.air = &air,	424	.air = &air,
390	.ip = dump.ip,	425	.ip = dump.ip,
391	.tty = detectTTYFromWriter(writer),	426	.tty = core.detectTTYFromWriter(writer),
392	.arena = arena.allocator(),	427	.arena = arena.allocator(),
393	};	428	};
394	try state.dumpInst(writer, .main_block);	429	try state.dumpInst(writer, .main_block);
...	@@ -399,10 +434,8 @@ pub fn format(	...	@@ -399,10 +434,8 @@ pub fn format(
399	const std = @import("std");	434	const std = @import("std");
400	const assert = std.debug.assert;	435	const assert = std.debug.assert;
401		436
402	const Air = @import("Air.zig");	437	const core = @import("mod.zig");
		438	const Air = core.Air;
403	const Inst = Air.Inst;	439	const Inst = Air.Inst;
404		440	const InternPool = core.InternPool;
405	const InternPool = @import("InternPool.zig");
406	const Value = InternPool.Value;	441	const Value = InternPool.Value;
407
408	const detectTTYFromWriter = @import("util.zig").detectTTYFromWriter;

src/core/Air.zig+19

 @@ -25,10 +25,13 @@ pub const Inst = struct {
         store,
         struct_init,
+        array_init,
         field_opaque,
         field_struct,
+        index,
         // bin
         add,
         sub,
 @@ -55,8 +58,10 @@ pub const Inst = struct {
                 .memory => Memory,
                 .store => Store,
                 .struct_init => StructInit,
+                .array_init => ArrayInit,
                 .field_opaque => FieldOpaque,
                 .field_struct => FieldStruct,
+                .index,
                 .add,
                 .sub,
                 .mul,
 @@ -272,6 +277,11 @@ pub const StructInit = struct {
     }
 };
+pub const ArrayInit = struct {
+    ty: Type,
+    list: RefList,
+};
 pub const FieldStruct = struct {
     base: Inst.Index,
     field_index: u32,
 @@ -326,6 +336,7 @@ pub fn typeOfIndex(air: *const Air, index: Inst.Index, ip: *const InternPool) In
         .store => air.instData(.memory, air.instData(.store, index).memory).ty,
         .@"if" => air.instData(.@"if", index).data.get(air).union_ty,
         .struct_init => air.instData(.struct_init, index).ty,
+        .array_init => air.instData(.array_init, index).ty,
         .arg => air.instData(.arg, index).type,
         // A handful of binary operators are lowered to a form where both sides
 @@ -367,6 +378,14 @@ pub fn typeOfIndex(air: *const Air, index: Inst.Index, ip: *const InternPool) In
                 .toStructType(ip) orelse unreachable; // not a struct
             return base_type.field_types[inst.field_index];
         },
+        // Array accesses use the array they are accessing into.
+        .index => {
+            const inst = air.instData(.index, index);
+            const base_type = air.typeOf(inst.lhs, ip)
+                .toArrayType(ip) orelse unreachable; // not an array
+            return base_type.item_type;
+        },
     };
 }

src/core/Ast.Dump.zig+14-8

 @@ -30,7 +30,7 @@ pub fn format(
         .node_tags = ast.nodes.items(.tag),
         .node_data = ast.nodes.items(.data),
         .node_tokens = ast.nodes.items(.main_token),
-        .tty = detectTTYFromWriter(writer),
+        .tty = core.detectTTYFromWriter(writer),
     };
     try dumpNode(writer, &state, 0);
     try writer.writeAll("\n");
 @@ -127,6 +127,8 @@ fn dumpNode(writer: anytype, state: *State, node: NodeIndex) @TypeOf(writer).Err
                 => try dumpNodeList(writer, state, list, '{', '}'),
                 .builtin_call,
                 => try dumpNodeList(writer, state, list, '(', ')'),
+                .array_init,
+                => try dumpNodeList(writer, state, list, '[', ']'),
                 else => unreachable,
             }
         },
 @@ -145,14 +147,18 @@ fn dumpNode(writer: anytype, state: *State, node: NodeIndex) @TypeOf(writer).Err
             try tty.setColor(writer, .reset);
             var indent = false;
             if (var_decl.type) |type_node| {
+                try writer.writeAll(" {");
                 state.indent += 1;
                 indent = true;
                 try state.newline(writer);
-                try writer.writeAll(": ");
+                try writer.writeAll("type: ");
                 try dumpNode(writer, state, type_node);
-                try writer.writeAll(", ");
+                try writer.writeAll(",");
+                try state.newline(writer);
+                try writer.writeAll("init: ");
+            } else {
+                try writer.writeAll(" = ");
             }
-            try writer.writeAll(" = ");
             try dumpNode(writer, state, var_decl.init);
             if (indent) {
                 state.indent -= 1;
 @@ -312,7 +318,8 @@ fn dumpNodeList(writer: anytype, state: *State, list: []const NodeIndex, l: u8,
             try dumpNode(writer, state, node);
         }
     }
-    try state.newline(writer);
+    if (list.len > 0)
+        try state.newline(writer);
     try writer.print("{c}", .{r});
 }
 @@ -321,10 +328,9 @@ const Dump = @This();
 const std = @import("std");
 const assert = std.debug.assert;
-const Ast = @import("Ast.zig");
+const core = @import("mod.zig");
+const Ast = core.Ast;
 const NodeIndex = Ast.NodeIndex;
 const Node = Ast.Node;
 const TokenIndex = Ast.TokenIndex;
 const Call = Ast.Call;
-const detectTTYFromWriter = @import("util.zig").detectTTYFromWriter;

src/core/Ast.zig+42-4

...	@@ -218,6 +218,10 @@ pub const Node = struct {	...	@@ -218,6 +218,10 @@ pub const Node = struct {
218	struct_field,	218	struct_field,
219	/// Struct Init	219	/// Struct Init
220	struct_init,	220	struct_init,
		221	/// Array type
		222	array_type,
		223	/// Array initialization
		224	array_init,
221		225
222	pub fn isAssignBin(op: Tag) bool {	226	pub fn isAssignBin(op: Tag) bool {
223	return switch (op) {	227	return switch (op) {
...	@@ -333,6 +337,8 @@ pub const Node = struct {	...	@@ -333,6 +337,8 @@ pub const Node = struct {
333	.shr_assign = .bin,	337	.shr_assign = .bin,
334	.string = .none,	338	.string = .none,
335	.struct_decl = .list,	339	.struct_decl = .list,
		340	.array_type = .un,
		341	.array_init = .list,
336	.struct_field = .un,	342	.struct_field = .un,
337	.struct_init = .struct_init,	343	.struct_init = .struct_init,
338	.sub = .bin,	344	.sub = .bin,
...	@@ -784,12 +790,44 @@ const Ast = @This();	...	@@ -784,12 +790,44 @@ const Ast = @This();
784	const std = @import("std");	790	const std = @import("std");
785	const assert = std.debug.assert;	791	const assert = std.debug.assert;
786		792
787	const Tokenizer = @import("Tokenizer.zig");	793	const core = @import("mod.zig");
		794
		795	const Tokenizer = core.Tokenizer;
788	const Token = Tokenizer.Token;	796	const Token = Tokenizer.Token;
789	const TokenList = Tokenizer.Token.List;	797	const TokenList = Tokenizer.Token.List;
790	const ByteOffset = Tokenizer.ByteOffset;	798	const ByteOffset = Tokenizer.ByteOffset;
791		799
792	const Report = @import("Report.zig");	800	const Report = core.Report;
		801
		802	/// For numbers that are used both as user-visible one based numbers and zero
		803	/// based offsets, use this type to reduce mistakes. A common usage of this
		804	/// would be line and column numbers for `Report.Item`s
		805	pub fn Ordinal(Int: type) type {
		806	comptime assert(@typeInfo(Int).Int.signedness == .unsigned);
		807	return enum(Int) {
		808	start = 0,
		809	_,
		810
		811	pub fn fromZeroBased(int: Int) @This() {
		812	assert(int != std.math.maxInt(Int));
		813	return @enumFromInt(int);
		814	}
793		815
794	const util = @import("util.zig");	816	pub fn fromOneBased(int: Int) @This() {
795	const Ordinal = util.Ordinal;	817	assert(int > 0);
		818	return @enumFromInt(int - 1);
		819	}
		820
		821	pub fn zeroBased(ord: @This()) Int {
		822	return @intFromEnum(ord);
		823	}
		824
		825	pub fn oneBased(ord: @This()) Int {
		826	return @intFromEnum(ord) + 1;
		827	}
		828
		829	pub fn add(ord: @This(), inc: Int) @This() {
		830	return fromZeroBased(ord.zeroBased() + inc);
		831	}
		832	};
		833	}

src/core/InternPool.zig+130-37

...	@@ -69,6 +69,8 @@ pub const Tag = enum(u8) {	...	@@ -69,6 +69,8 @@ pub const Tag = enum(u8) {
69	function_type,	69	function_type,
70	/// A struct type	70	/// A struct type
71	struct_type,	71	struct_type,
		72	/// An array type
		73	array_type,
72	/// A type that can be represented with only an enum tag.	74	/// A type that can be represented with only an enum tag.
73	simple_type,	75	simple_type,
74		76
...	@@ -92,6 +94,8 @@ pub const Tag = enum(u8) {	...	@@ -92,6 +94,8 @@ pub const Tag = enum(u8) {
92		94
93	struct_value,	95	struct_value,
94		96
		97	array_value,
		98
95	pub fn Data(comptime tag: Tag) type {	99	pub fn Data(comptime tag: Tag) type {
96	return switch (tag) {	100	return switch (tag) {
97	.removed,	101	.removed,
...	@@ -118,7 +122,9 @@ pub const Tag = enum(u8) {	...	@@ -118,7 +122,9 @@ pub const Tag = enum(u8) {
118	.function_type => TypeFunction,	122	.function_type => TypeFunction,
119	.string => String.WithLen,	123	.string => String.WithLen,
120	.struct_value => StructValue,	124	.struct_value => StructValue,
121	.struct_type => TypeStruct,	125	.struct_type => StructType,
		126	.array_type => ArrayType,
		127	.array_value => ArrayValue,
122	};	128	};
123	}	129	}
124		130
...	@@ -140,10 +146,23 @@ pub const Tag = enum(u8) {	...	@@ -140,10 +146,23 @@ pub const Tag = enum(u8) {
140	/// Trailing:	146	/// Trailing:
141	/// 0. field_key: NullTerminatedString. Repeated per field_len	147	/// 0. field_key: NullTerminatedString. Repeated per field_len
142	/// 1. field_type: Type. Repeated per field_len	148	/// 1. field_type: Type. Repeated per field_len
143	pub const TypeStruct = struct {	149	pub const StructType = struct {
144	fields_len: u32,	150	fields_len: u32,
145	};	151	};
146		152
		153	/// Trailing:
		154	pub const ArrayType = struct {
		155	item_type: Type,
		156	};
		157
		158	/// Trailing:
		159	/// 1. item: Type. Repeated per items_len
		160	pub const ArrayValue = struct {
		161	/// This is the array type, not the item type
		162	type: Type,
		163	items_len: u32,
		164	};
		165
147	/// Trailing:	166	/// Trailing:
148	/// 0. value: Value. Repeated ty.structInfo().field_len	167	/// 0. value: Value. Repeated ty.structInfo().field_len
149	pub const StructValue = struct {	168	pub const StructValue = struct {
...	@@ -155,9 +174,9 @@ pub const Tag = enum(u8) {	...	@@ -155,9 +174,9 @@ pub const Tag = enum(u8) {
155	/// This is an index into .items	174	/// This is an index into .items
156	pub const Value = enum(u32) {	175	pub const Value = enum(u32) {
157	pub const first_type: Value = .opaque_type;	176	pub const first_type: Value = .opaque_type;
158	pub const last_type: Value = .noreturn_type;	177	pub const last_type: Value = .numeric_literal_array_type;
159	pub const first_value: Value = .void;	178	pub const first_value: Value = .void;
160	pub const last_value: Value = .empty_string;	179	pub const last_value: Value = .empty_array;
161		180
162	opaque_type,	181	opaque_type,
163	bool_type,	182	bool_type,
...	@@ -167,6 +186,8 @@ pub const Value = enum(u32) {	...	@@ -167,6 +186,8 @@ pub const Value = enum(u32) {
167	noreturn_type,	186	noreturn_type,
168	type_type,	187	type_type,
169	numeric_literal_type,	188	numeric_literal_type,
		189	numeric_literal_array_type,
		190	noreturn_array_type,
170		191
171	void,	192	void,
172	bool_true,	193	bool_true,
...	@@ -175,7 +196,7 @@ pub const Value = enum(u32) {	...	@@ -175,7 +196,7 @@ pub const Value = enum(u32) {
175	float_zero,	196	float_zero,
176	nan,	197	nan,
177	empty_string,	198	empty_string,
178	standard_library,	199	empty_array,
179		200
180	none = std.math.maxInt(u32),	201	none = std.math.maxInt(u32),
181	_,	202	_,
...	@@ -183,7 +204,7 @@ pub const Value = enum(u32) {	...	@@ -183,7 +204,7 @@ pub const Value = enum(u32) {
183	/// An array of `Value` existing within the `extra` array.	204	/// An array of `Value` existing within the `extra` array.
184	/// This type exists to provide a struct with lifetime that is	205	/// This type exists to provide a struct with lifetime that is
185	/// not invalidated when items are added to the `InternPool`.	206	/// not invalidated when items are added to the `InternPool`.
186	/// TODO: Replace with ExtraStore.Slice(Value)	207	// TODO: Replace with ExtraStore.Slice(Value)
187	pub const Slice = struct {	208	pub const Slice = struct {
188	start: u32,	209	start: u32,
189	len: u32,	210	len: u32,
...	@@ -237,7 +258,7 @@ pub const Value = enum(u32) {	...	@@ -237,7 +258,7 @@ pub const Value = enum(u32) {
237	// TODO: move the formatter out of Air.Dump	258	// TODO: move the formatter out of Air.Dump
238	var state: Air.Dump.State = undefined;	259	var state: Air.Dump.State = undefined;
239	state.ip = ctx.ip;	260	state.ip = ctx.ip;
240	state.tty = @import("util.zig").detectTTYFromWriter(writer);	261	state.tty = core.detectTTYFromWriter(writer);
241	try Air.Dump.State.dumpValue(&state, writer, ctx.val);	262	try Air.Dump.State.dumpValue(&state, writer, ctx.val);
242	}	263	}
243		264
...	@@ -245,9 +266,11 @@ pub const Value = enum(u32) {	...	@@ -245,9 +266,11 @@ pub const Value = enum(u32) {
245	return switch (value.valueTag(ip)) {	266	return switch (value.valueTag(ip)) {
246	.removed => unreachable, // UAF	267	.removed => unreachable, // UAF
247		268
248	.function_type => .type,	269	.function_type,
249	.simple_type => .type,	270	.simple_type,
250	.struct_type => .type,	271	.struct_type,
		272	.array_type,
		273	=> .type,
251		274
252	.simple_value => switch (value.valueData(ip, .simple_value)) {	275	.simple_value => switch (value.valueData(ip, .simple_value)) {
253	.true => .bool,	276	.true => .bool,
...	@@ -261,6 +284,7 @@ pub const Value = enum(u32) {	...	@@ -261,6 +284,7 @@ pub const Value = enum(u32) {
261	.string => .string,	284	.string => .string,
262	.func => value.toKey(ip).func.ty,	285	.func => value.toKey(ip).func.ty,
263	.struct_value => value.toKey(ip).struct_value.ty,	286	.struct_value => value.toKey(ip).struct_value.ty,
		287	.array_value => value.toKey(ip).array_value.type,
264	};	288	};
265	}	289	}
266		290
...	@@ -273,6 +297,7 @@ pub const Value = enum(u32) {	...	@@ -273,6 +297,7 @@ pub const Value = enum(u32) {
273	.function_type,	297	.function_type,
274	.struct_type,	298	.struct_type,
275	.simple_type,	299	.simple_type,
		300	.array_type,
276	=> @enumFromInt(@intFromEnum(value)),	301	=> @enumFromInt(@intFromEnum(value)),
277		302
278	// exception: void is a value AND a type	303	// exception: void is a value AND a type
...	@@ -321,6 +346,8 @@ pub const Type = enum(u32) {	...	@@ -321,6 +346,8 @@ pub const Type = enum(u32) {
321	noreturn = @intFromEnum(Value.noreturn_type),	346	noreturn = @intFromEnum(Value.noreturn_type),
322	type = @intFromEnum(Value.type_type),	347	type = @intFromEnum(Value.type_type),
323	numeric_literal = @intFromEnum(Value.numeric_literal_type),	348	numeric_literal = @intFromEnum(Value.numeric_literal_type),
		349	numeric_literal_array = @intFromEnum(Value.numeric_literal_array_type),
		350	noreturn_array = @intFromEnum(Value.noreturn_array_type),
324	void = @intFromEnum(Value.void),	351	void = @intFromEnum(Value.void),
325	_,	352	_,
326		353
...	@@ -328,6 +355,7 @@ pub const Type = enum(u32) {	...	@@ -328,6 +355,7 @@ pub const Type = enum(u32) {
328	pub const Tag = enum(u32) {	355	pub const Tag = enum(u32) {
329	function_type = @intFromEnum(InternPool.Tag.function_type),	356	function_type = @intFromEnum(InternPool.Tag.function_type),
330	struct_type = @intFromEnum(InternPool.Tag.struct_type),	357	struct_type = @intFromEnum(InternPool.Tag.struct_type),
		358	array_type = @intFromEnum(InternPool.Tag.array_type),
331	simple_type = @intFromEnum(InternPool.Tag.simple_type),	359	simple_type = @intFromEnum(InternPool.Tag.simple_type),
332	};	360	};
333		361
...	@@ -362,6 +390,11 @@ pub const Type = enum(u32) {	...	@@ -362,6 +390,11 @@ pub const Type = enum(u32) {
362	return ip.valueToKey(ty.value()).struct_type;	390	return ip.valueToKey(ty.value()).struct_type;
363	}	391	}
364		392
		393	pub fn toArrayType(ty: Type, ip: *const InternPool) ?Key.ArrayType {
		394	if (ty.tag(ip) != .array_type) return null;
		395	return ip.valueToKey(ty.value()).array_type;
		396	}
		397
365	pub fn hasRuntimeRepresentation(ty: Type, ip: *const InternPool) bool {	398	pub fn hasRuntimeRepresentation(ty: Type, ip: *const InternPool) bool {
366	return switch (ty) {	399	return switch (ty) {
367	.bool,	400	.bool,
...	@@ -377,8 +410,11 @@ pub const Type = enum(u32) {	...	@@ -377,8 +410,11 @@ pub const Type = enum(u32) {
377	=> false,	410	=> false,
378	else => switch (ty.tag(ip)) {	411	else => switch (ty.tag(ip)) {
379	.simple_type => unreachable, // all simple types are already printed	412	.simple_type => unreachable, // all simple types are already printed
380	.function_type => true,	413	.struct_type,
381	.struct_type => true,	414	=> false,
		415	.function_type,
		416	=> true,
		417	.array_type => ty.toArrayType(ip).?.item_type.hasRuntimeRepresentation(ip),
382	},	418	},
383	};	419	};
384	}	420	}
...	@@ -428,6 +464,11 @@ pub const Type = enum(u32) {	...	@@ -428,6 +464,11 @@ pub const Type = enum(u32) {
428	.struct_type => {	464	.struct_type => {
429	try writer.writeAll("[struct]");	465	try writer.writeAll("[struct]");
430	},	466	},
		467	.array_type => {
		468	try writer.writeAll("[]");
		469	const array_type = ty.toArrayType(ip).?;
		470	try writer.print("{}", .{array_type.item_type.displayName(ip)});
		471	},
431	}	472	}
432	}	473	}
433	};	474	};
...	@@ -464,6 +505,8 @@ pub const static_keys = [_]Key{	...	@@ -464,6 +505,8 @@ pub const static_keys = [_]Key{
464	SimpleType.noreturn.key(),	505	SimpleType.noreturn.key(),
465	SimpleType.type.key(),	506	SimpleType.type.key(),
466	SimpleType.numeric_literal.key(),	507	SimpleType.numeric_literal.key(),
		508	.{ .array_type = .{ .item_type = Type.numeric_literal } },
		509	.{ .array_type = .{ .item_type = Type.noreturn } },
467		510
468	SimpleValue.void.key(),	511	SimpleValue.void.key(),
469	SimpleValue.true.key(),	512	SimpleValue.true.key(),
...	@@ -471,6 +514,10 @@ pub const static_keys = [_]Key{	...	@@ -471,6 +514,10 @@ pub const static_keys = [_]Key{
471	.{ .int32 = 0 },	514	.{ .int32 = 0 },
472	.{ .float = 0.0 },	515	.{ .float = 0.0 },
473	.{ .float = Float.pure_nan.decode() },	516	.{ .float = Float.pure_nan.decode() },
		517	.{ .array_value = .{
		518	.type = Type.noreturn_array,
		519	.items = &.{},
		520	} },
474	.{ .string = "" },	521	.{ .string = "" },
475	};	522	};
476		523
...	@@ -782,10 +829,12 @@ pub const Key = union(enum) {	...	@@ -782,10 +829,12 @@ pub const Key = union(enum) {
782	simple_value: SimpleValue,	829	simple_value: SimpleValue,
783	struct_value: StructValue,	830	struct_value: StructValue,
784	func: Func,	831	func: Func,
		832	array_value: ArrayValue,
785	// Types	833	// Types
786	simple_type: SimpleType,	834	simple_type: SimpleType,
787	function_type: FunctionType,	835	function_type: FunctionType,
788	struct_type: StructType,	836	struct_type: StructType,
		837	array_type: ArrayType,
789		838
790	const Adapter = struct {	839	const Adapter = struct {
791	intern_pool: *const InternPool,	840	intern_pool: *const InternPool,
...	@@ -827,6 +876,7 @@ pub const Key = union(enum) {	...	@@ -827,6 +876,7 @@ pub const Key = union(enum) {
827		876
828	pub fn hash(self: StructType, hasher: *Hash) void {	877	pub fn hash(self: StructType, hasher: *Hash) void {
829	// TODO: remove this function. structural typing is not used	878	// TODO: remove this function. structural typing is not used
		879	// this should be hashing it's location / decl, exactly like `Func`
830	std.hash.autoHashStrat(hasher, self, .DeepRecursive);	880	std.hash.autoHashStrat(hasher, self, .DeepRecursive);
831	}	881	}
832	};	882	};
...	@@ -841,6 +891,25 @@ pub const Key = union(enum) {	...	@@ -841,6 +891,25 @@ pub const Key = union(enum) {
841	}	891	}
842	};	892	};
843		893
		894	pub const ArrayType = struct {
		895	item_type: Type,
		896
		897	pub fn hash(self: ArrayType, hasher: *Hash) void {
		898	std.hash.autoHash(hasher, self.item_type);
		899	}
		900	};
		901
		902	pub const ArrayValue = struct {
		903	/// This is the array type, not the item type
		904	type: Type,
		905	items: []const Value,
		906
		907	pub fn hash(self: ArrayValue, hasher: *Hash) void {
		908	std.hash.autoHash(hasher, self.type);
		909	std.hash.autoHashStrat(hasher, self.items, .Deep);
		910	}
		911	};
		912
844	pub const Func = struct {	913	pub const Func = struct {
845	ty: Type,	914	ty: Type,
846	owner_decl: DeclIndex,	915	owner_decl: DeclIndex,
...	@@ -874,22 +943,13 @@ pub const Key = union(enum) {	...	@@ -874,22 +943,13 @@ pub const Key = union(enum) {
874	.string,	943	.string,
875	=> \|x\| Hash.hash(seed, x),	944	=> \|x\| Hash.hash(seed, x),
876	.float, .comptime_float => \|x\| Hash.hash(seed, asBytes(&Float.assertPure(x))),	945	.float, .comptime_float => \|x\| Hash.hash(seed, asBytes(&Float.assertPure(x))),
877	.function_type => \|x\| {	946	inline .function_type,
878	var hasher = Hash.init(seed);	947	.func,
879	x.hash(&hasher);	948	.struct_type,
880	return hasher.final();	949	.struct_value,
881	},	950	.array_value,
882	.func => \|x\| {	951	.array_type,
883	var hasher = Hash.init(seed);	952	=> \|x\| {
884	x.hash(&hasher);
885	return hasher.final();
886	},
887	.struct_type => \|x\| {
888	var hasher = Hash.init(seed);
889	x.hash(&hasher);
890	return hasher.final();
891	},
892	.struct_value => \|x\| {
893	var hasher = Hash.init(seed);	953	var hasher = Hash.init(seed);
894	x.hash(&hasher);	954	x.hash(&hasher);
895	return hasher.final();	955	return hasher.final();
...	@@ -934,6 +994,14 @@ pub const Key = union(enum) {	...	@@ -934,6 +994,14 @@ pub const Key = union(enum) {
934	return a_info.ty == b_info.ty and	994	return a_info.ty == b_info.ty and
935	std.mem.eql(Value, a_info.field_values, b_info.field_values);	995	std.mem.eql(Value, a_info.field_values, b_info.field_values);
936	},	996	},
		997	.array_type => \|a_info\| {
		998	return a_info.item_type == b.array_type.item_type;
		999	},
		1000	.array_value => \|a_info\| {
		1001	const b_info = b.array_value;
		1002	return a_info.type == b_info.type and
		1003	std.mem.eql(Value, a_info.items, b_info.items);
		1004	},
937	};	1005	};
938	}	1006	}
939	};	1007	};
...	@@ -1066,7 +1134,7 @@ pub fn valueToKey(ip: *const InternPool, index: Value) Key {	...	@@ -1066,7 +1134,7 @@ pub fn valueToKey(ip: *const InternPool, index: Value) Key {
1066	.function_type = ip.extraTypeFunction(data.decode(.function_type, item.tag)),	1134	.function_type = ip.extraTypeFunction(data.decode(.function_type, item.tag)),
1067	},	1135	},
1068	.struct_type => {	1136	.struct_type => {
1069	const payload: Tag.TypeStruct, var trail =	1137	const payload: Tag.StructType, var trail =
1070	data.decode(.struct_type, item.tag).getTrail(ip);	1138	data.decode(.struct_type, item.tag).getTrail(ip);
1071		1139
1072	return .{ .struct_type = .{	1140	return .{ .struct_type = .{
...	@@ -1085,6 +1153,19 @@ pub fn valueToKey(ip: *const InternPool, index: Value) Key {	...	@@ -1085,6 +1153,19 @@ pub fn valueToKey(ip: *const InternPool, index: Value) Key {
1085	).get(ip),	1153	).get(ip),
1086	} };	1154	} };
1087	},	1155	},
		1156	.array_type => {
		1157	const payload: Tag.ArrayType = data.decode(.array_type, item.tag).get(ip);
		1158	return .{ .array_type = .{
		1159	.item_type = payload.item_type,
		1160	} };
		1161	},
		1162	.array_value => {
		1163	const payload: Tag.ArrayValue, var trail = data.decode(.array_value, item.tag).getTrail(ip);
		1164	return .{ .array_value = .{
		1165	.type = payload.type,
		1166	.items = trail.readValueSlice(payload.items_len).get(ip),
		1167	} };
		1168	},
1088	};	1169	};
1089	}	1170	}
1090		1171
...	@@ -1147,7 +1228,7 @@ pub fn get(ip: *InternPool, gpa: Allocator, key: Key) !Value {	...	@@ -1147,7 +1228,7 @@ pub fn get(ip: *InternPool, gpa: Allocator, key: Key) !Value {
1147	},	1228	},
1148	.struct_type => \|s\| brk: {	1229	.struct_type => \|s\| brk: {
1149	assert(s.field_keys.len == s.field_types.len);	1230	assert(s.field_keys.len == s.field_types.len);
1150	const extra, var trail = try ip.extra.appendTrailing(gpa, Tag.TypeStruct, .{	1231	const extra, var trail = try ip.extra.appendTrailing(gpa, Tag.StructType, .{
1151	.fields_len = @intCast(s.field_keys.len),	1232	.fields_len = @intCast(s.field_keys.len),
1152	}, s.field_keys.len * 2);	1233	}, s.field_keys.len * 2);
1153	trail.writeSlice(s.field_keys);	1234	trail.writeSlice(s.field_keys);
...	@@ -1163,6 +1244,19 @@ pub fn get(ip: *InternPool, gpa: Allocator, key: Key) !Value {	...	@@ -1163,6 +1244,19 @@ pub fn get(ip: *InternPool, gpa: Allocator, key: Key) !Value {
1163	trail.writeSlice(s.field_values);	1244	trail.writeSlice(s.field_values);
1164	break :brk Item.encode(.struct_value, extra);	1245	break :brk Item.encode(.struct_value, extra);
1165	},	1246	},
		1247	.array_type => \|s\| brk: {
		1248	break :brk Item.encode(.array_type, try ip.extra.append(gpa, Tag.ArrayType, .{
		1249	.item_type = s.item_type,
		1250	}));
		1251	},
		1252	.array_value => \|s\| brk: {
		1253	const extra, var trail = try ip.extra.appendTrailing(gpa, Tag.ArrayValue, .{
		1254	.type = s.type,
		1255	.items_len = @intCast(s.items.len),
		1256	}, s.items.len);
		1257	trail.writeSlice(s.items);
		1258	break :brk Item.encode(.array_value, extra);
		1259	},
1166	};	1260	};
1167	ip.items.appendAssumeCapacity(item);	1261	ip.items.appendAssumeCapacity(item);
1168	const index: Value = @enumFromInt(ip.items.len - 1);	1262	const index: Value = @enumFromInt(ip.items.len - 1);
...	@@ -1332,13 +1426,12 @@ const Allocator = std.mem.Allocator;	...	@@ -1332,13 +1426,12 @@ const Allocator = std.mem.Allocator;
1332	const Hash = std.hash.Wyhash;	1426	const Hash = std.hash.Wyhash;
1333	const assert = std.debug.assert;	1427	const assert = std.debug.assert;
1334		1428
1335	const Comp = @import("Comp.zig");	1429	const core = @import("mod.zig");
1336	const Cache = @import("Cache.zig");	1430	const Comp = core.Comp;
1337		1431	const Cache = core.Cache;
1338	const Teg = @import("Teg.zig");	1432	const Teg = core.Teg;
1339	const Air = @import("Air.zig");	1433	const Air = core.Air;
1340		1434	const dod = core.array;
1341	const dod = @import("array.zig");
1342	const Float = dod.Float;	1435	const Float = dod.Float;
1343		1436
1344	const tracer = @import("tracer");	1437	const tracer = @import("tracer");

src/core/Parse.zig+77-15

...	@@ -141,6 +141,8 @@ pub const AstError = union(enum) {	...	@@ -141,6 +141,8 @@ pub const AstError = union(enum) {
141	/// Went past depth maximum	141	/// Went past depth maximum
142	depth_limit: Token,	142	depth_limit: Token,
143		143
		144	array_type_flipped_hint: Token,
		145
144	pub fn toReport(err: AstError, comp: Comp, file: Comp.File, trace: Report.DebugStoredTrace) !Report {	146	pub fn toReport(err: AstError, comp: Comp, file: Comp.File, trace: Report.DebugStoredTrace) !Report {
145	return (Report.Err{ .ast = err }).toReport(comp, file, trace);	147	return (Report.Err{ .ast = err }).toReport(comp, file, trace);
146	}	148	}
...	@@ -176,6 +178,13 @@ pub const AstError = union(enum) {	...	@@ -176,6 +178,13 @@ pub const AstError = union(enum) {
176	data.got.tag.description(),	178	data.got.tag.description(),
177	});	179	});
178	},	180	},
		181	.array_type_flipped_hint => \|token\| {
		182	try ctx.msg(.{ .token_stored = token }, "expected {s}, but found {s}", .{
		183	ExpectedContext.expression.description(),
		184	token.tag.description(),
		185	});
		186	try ctx.msgAlone("the syntax for array types is \"[]T\", not \"T[]\"", .{});
		187	},
179	.depth_limit => \|data\| {	188	.depth_limit => \|data\| {
180	try ctx.msg(.{ .token_stored = data }, "syntax tree is nested too deeply (limit: {d})", .{depth_limit});	189	try ctx.msg(.{ .token_stored = data }, "syntax tree is nested too deeply (limit: {d})", .{depth_limit});
181	},	190	},
...	@@ -237,7 +246,7 @@ fn parseModuleMembers(p: *Parse) Error!SubList {	...	@@ -237,7 +246,7 @@ fn parseModuleMembers(p: *Parse) Error!SubList {
237	=> try p.scratch.append(p.gpa, try p.parseModuleDecl()),	246	=> try p.scratch.append(p.gpa, try p.parseModuleDecl()),
238		247
239	.kw_struct,	248	.kw_struct,
240	=> try p.scratch.append(p.gpa, try p.parseStructDecl(.declaration)),	249	=> try p.scratch.append(p.gpa, try p.parseStructDecl()),
241		250
242	.kw_enum,	251	.kw_enum,
243	.kw_trait,	252	.kw_trait,
...	@@ -383,13 +392,12 @@ fn parseParamDecl(p: *Parse, types: TypePresence) Error!NodeIndex {	...	@@ -383,13 +392,12 @@ fn parseParamDecl(p: *Parse, types: TypePresence) Error!NodeIndex {
383	});	392	});
384	}	393	}
385		394
386	fn parseStructDecl(p: *Parse, ctx: ExprParseContext) Error!NodeIndex {	395	fn parseStructDecl(p: *Parse) Error!NodeIndex {
387	const trace = t.trace(@src());	396	const trace = t.trace(@src());
388	defer trace.end();	397	defer trace.end();
389		398
390	const main_token = p.assertToken(.kw_struct);	399	const main_token = p.assertToken(.kw_struct);
391		400
392	_ = ctx; // TODO:
393	_ = try p.expect(.id);	401	_ = try p.expect(.id);
394		402
395	_ = try p.expect(.start_brace);	403	_ = try p.expect(.start_brace);
...	@@ -586,6 +594,7 @@ fn isExpressionStart(p: *Parse) bool {	...	@@ -586,6 +594,7 @@ fn isExpressionStart(p: *Parse) bool {
586	.number_float,	594	.number_float,
587	.number_int,	595	.number_int,
588	.start_brace,	596	.start_brace,
		597	.start_bracket,
589	.start_paren,	598	.start_paren,
590	.string,	599	.string,
591	.tilde,	600	.tilde,
...	@@ -840,13 +849,14 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {	...	@@ -840,13 +849,14 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {
840		849
841	// Complex expressions	850	// Complex expressions
842	.builtin_id => try p.parseBuiltinCall(),	851	.builtin_id => try p.parseBuiltinCall(),
843	.kw_return => try p.parseReturn(),	852	.dot => try p.parseAnonInstantiation(),
844	.kw_break => try p.parseBreak(),	853	.kw_break => try p.parseBreak(),
		854	.kw_fn => try p.parseAnonFunction(),
845	.kw_if => try p.parseIf(),	855	.kw_if => try p.parseIf(),
846	.start_paren => try p.parseGroup(),	856	.kw_return => try p.parseReturn(),
847	.start_brace => try p.parseBlock(),	857	.start_brace => try p.parseBlock(),
848	.dot => try p.parseAnonInstantiation(),	858	.start_bracket => try p.parseArrayValueOrType(mode),
849	.kw_fn => try p.parseAnonFunction(),	859	.start_paren => try p.parseGroup(),
850		860
851	// Unary operators	861	// Unary operators
852	inline .bang,	862	inline .bang,
...	@@ -900,7 +910,7 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {	...	@@ -900,7 +910,7 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {
900	},	910	},
901	.start_paren => {	911	.start_paren => {
902	const main_token = p.nextToken();	912	const main_token = p.nextToken();
903	const args = try p.parseCallArgs();	913	const args = try p.parseExpressionList(.end_paren, .argument);
904		914
905	const extra = try p.addExtra(Ast.Call, .{	915	const extra = try p.addExtra(Ast.Call, .{
906	.args = args,	916	.args = args,
...	@@ -917,7 +927,12 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {	...	@@ -917,7 +927,12 @@ fn parseExpressionPart(p: *Parse, mode: ParseExprMode) Error!NodeIndex {
917	},	927	},
918	.start_bracket => {	928	.start_bracket => {
919	const main_token = p.nextToken();	929	const main_token = p.nextToken();
920	const index = try p.parseExpression(.expression);	930
		931	if (p.currentTag() == .end_bracket) {
		932	return p.fail(.{ .array_type_flipped_hint = p.fullToken(p.pos) });
		933	}
		934
		935	const index = try p.tryParseExpression(.expression);
921		936
922	expr = try p.addNode(.{	937	expr = try p.addNode(.{
923	.tag = .index,	938	.tag = .index,
...	@@ -1034,7 +1049,7 @@ fn parseBuiltinCall(p: *Parse) Error!NodeIndex {	...	@@ -1034,7 +1049,7 @@ fn parseBuiltinCall(p: *Parse) Error!NodeIndex {
1034		1049
1035	_ = try p.expect(.start_paren);	1050	_ = try p.expect(.start_paren);
1036		1051
1037	const args = try p.parseCallArgs();	1052	const args = try p.parseExpressionList(.end_paren, .argument);
1038		1053
1039	return try p.addNode(.{	1054	return try p.addNode(.{
1040	.tag = .builtin_call,	1055	.tag = .builtin_call,
...	@@ -1043,7 +1058,11 @@ fn parseBuiltinCall(p: *Parse) Error!NodeIndex {	...	@@ -1043,7 +1058,11 @@ fn parseBuiltinCall(p: *Parse) Error!NodeIndex {
1043	});	1058	});
1044	}	1059	}
1045		1060
1046	fn parseCallArgs(p: *Parse) Error!SubList {	1061	fn parseExpressionList(
		1062	p: *Parse,
		1063	comptime end_token: Token.Tag,
		1064	comptime fail_context: ExpectedContext,
		1065	) Error!SubList {
1047	const trace = t.trace(@src());	1066	const trace = t.trace(@src());
1048	defer trace.end();	1067	defer trace.end();
1049		1068
...	@@ -1054,19 +1073,19 @@ fn parseCallArgs(p: *Parse) Error!SubList {	...	@@ -1054,19 +1073,19 @@ fn parseCallArgs(p: *Parse) Error!SubList {
1054	try p.scratch.append(p.gpa, try p.parseExpression(.expression));	1073	try p.scratch.append(p.gpa, try p.parseExpression(.expression));
1055		1074
1056	switch (p.currentTag()) {	1075	switch (p.currentTag()) {
1057	.end_paren => {	1076	end_token => {
1058	break;	1077	break;
1059	},	1078	},
1060	.comma => {	1079	.comma => {
1061	_ = p.nextToken();	1080	_ = p.nextToken();
1062	if (p.currentTag() == .end_paren)	1081	if (p.currentTag() == end_token)
1063	break;	1082	break;
1064	},	1083	},
1065	else => return p.failUnexpectedToken(.argument),	1084	else => return p.failUnexpectedToken(fail_context),
1066	}	1085	}
1067	}	1086	}
1068		1087
1069	_ = try p.expect(.end_paren);	1088	_ = try p.expect(end_token);
1070		1089
1071	return p.scratchToSubList(scratch_top);	1090	return p.scratchToSubList(scratch_top);
1072	}	1091	}
...	@@ -1204,6 +1223,49 @@ fn parseAnonFunction(p: *Parse) Error!NodeIndex {	...	@@ -1204,6 +1223,49 @@ fn parseAnonFunction(p: *Parse) Error!NodeIndex {
1204	});	1223	});
1205	}	1224	}
1206		1225
		1226	fn parseArrayValueOrType(p: *Parse, mode: ParseExprMode) Error!NodeIndex {
		1227	const main_token = p.assertToken(.start_bracket);
		1228
		1229	if (p.eatToken(.end_bracket) != null) {
		1230	// Either array type or an empty array. These are technically ambiguous forms:
		1231	//
		1232	// [] & x;
		1233	//
		1234	// This is either a binary expression with an empty array, or an array
		1235	// of references. Since the latter makes more sense, we will defer to
		1236	// that. The same applies to the other operators that are both prefix
		1237	// and infix, however those will all lead to semantic analysis errors.
		1238	if (!p.isExpressionStart() or
		1239	(mode == .preceding_block and p.currentTag() == .start_brace))
		1240	{
		1241	// []
		1242	return p.addNode(.{
		1243	.tag = .array_init,
		1244	.main_token = main_token,
		1245	.data = .{ .list = SubList.empty },
		1246	});
		1247	} else {
		1248	// []T
		1249	const operand = try p.parseExpressionPart(mode);
		1250	return p.addNode(.{
		1251	.tag = .array_type,
		1252	.main_token = main_token,
		1253	.data = .{ .un = .{
		1254	.expr = operand,
		1255	} },
		1256	});
		1257	}
		1258	}
		1259
		1260	// [x, y, z]
		1261	const list = try p.parseExpressionList(.end_bracket, .expression);
		1262	return p.addNode(.{
		1263	.tag = .array_init,
		1264	.main_token = main_token,
		1265	.data = .{ .list = list },
		1266	});
		1267	}
		1268
1207	// helpers	1269	// helpers
1208		1270
1209	/// Append a node and return its index.	1271	/// Append a node and return its index.

src/core/Report.zig+21-3

...	@@ -490,10 +490,25 @@ pub const Warn = union(enum) {	...	@@ -490,10 +490,25 @@ pub const Warn = union(enum) {
490		490
491	fn build(data: @This(), ctx: *MsgContext) !void {	491	fn build(data: @This(), ctx: *MsgContext) !void {
492	const node = try data.src.get(ctx);	492	const node = try data.src.get(ctx);
493	try ctx.msgNode(node, "constant integer in a \"var\" has an unknown type, assuming \"float\"", .{});	493	try ctx.msgNode(node, "constant integer cannot be represented as a runtime value, implicitly casting to \"float\"", .{});
494	try ctx.msgAlone("add \": float\" or \": int\" after the variable name to set the type", .{});	494	try ctx.msgAlone("add \": float\" or \": int\" after the variable name to set the type", .{});
495	}	495	}
496	},	496	},
		497	numeric_int_array_var_ambiguity: struct {
		498	src: LazyNode,
		499
		500	fn build(data: @This(), ctx: *MsgContext) !void {
		501	const node = try data.src.get(ctx);
		502	try ctx.msgNode(
		503	node,
		504	"\"{}\" cannot be represented as a runtime value, implicitly casting to \"[]float\"",
		505	.{
		506	Type.numeric_literal_array.displayName(ctx.ip()),
		507	},
		508	);
		509	try ctx.msgAlone("add \": []float\" or \": []int\" after the variable name to set the type", .{});
		510	}
		511	},
497	};	512	};
498		513
499	/// A variant of std.builtin.StackTrace that stores its data within itself	514	/// A variant of std.builtin.StackTrace that stores its data within itself
...	@@ -1065,6 +1080,11 @@ pub const LazyNode = struct {	...	@@ -1065,6 +1080,11 @@ pub const LazyNode = struct {
1065	},	1080	},
1066	}	1081	}
1067	},	1082	},
		1083	.array_init => {
		1084	assert(node_tag == .array_init);
		1085	const items = data.list.slice(ctx.ast);
		1086	return items[lazy.operand.getArgId()];
		1087	},
1068	else => {},	1088	else => {},
1069	}	1089	}
1070		1090
...	@@ -1318,5 +1338,3 @@ const File = Comp.File;	...	@@ -1318,5 +1338,3 @@ const File = Comp.File;
1318	const InternPool = @import("InternPool.zig");	1338	const InternPool = @import("InternPool.zig");
1319	const Value = InternPool.Value;	1339	const Value = InternPool.Value;
1320	const Type = InternPool.Type;	1340	const Type = InternPool.Type;
1321
1322	const util = @import("util.zig");

src/core/Sema.zig+222-133

...	@@ -36,9 +36,9 @@ namespace_index: Namespace.Index,	...	@@ -36,9 +36,9 @@ namespace_index: Namespace.Index,
36		36
37	// temp data:	37	// temp data:
38	inst_map: InstMap = undefined,	38	inst_map: InstMap = undefined,
39	/// scratch memory. can be used in any place you might temporarily allocate an arraylist	39	/// Scratch memory for temporary allocations.
40	/// this is most notably used to store block contents before the block is finalized	40	/// Block contents are appended for marks.
41	scratch: std.ArrayListUnmanaged(u32) = .{},	41	scratch: core.U32Stack = .{},
42		42
43	/// This is only set for function declarations	43	/// This is only set for function declarations
44	params: []Type = undefined,	44	params: []Type = undefined,
...	@@ -134,7 +134,7 @@ pub fn deinit(s: *Sema) void {	...	@@ -134,7 +134,7 @@ pub fn deinit(s: *Sema) void {
134		134
135	defer s.* = undefined;	135	defer s.* = undefined;
136	s.inst_map.deinit(s.arena);	136	s.inst_map.deinit(s.arena);
137	s.scratch.deinit(s.arena);	137	s.scratch.list.deinit(s.arena);
138	s.air_extra.deinit(s.gpa);	138	s.air_extra.deinit(s.gpa);
139	s.air_instructions.deinit(s.gpa);	139	s.air_instructions.deinit(s.gpa);
140	s.temp_result_map.deinit(s.arena);	140	s.temp_result_map.deinit(s.arena);
...	@@ -205,7 +205,7 @@ pub fn analyzeFunctionDeclaration(s: *Sema) Error!Value {	...	@@ -205,7 +205,7 @@ pub fn analyzeFunctionDeclaration(s: *Sema) Error!Value {
205	defer s.gpa.free(s.params);	205	defer s.gpa.free(s.params);
206		206
207	for (fn_decl.params.slice(&s.code), 0..) \|param, i\| {	207	for (fn_decl.params.slice(&s.code), 0..) \|param, i\| {
208	const src = s.inst_map.start.op(Report.Operand.argument(@intCast(i)));	208	const src = s.inst_map.start.op(operandArgument(@intCast(i)));
209	const ty = try s.resolveType(src, param);	209	const ty = try s.resolveType(src, param);
210	if (!ty.hasRuntimeRepresentation(s.ip)) {	210	if (!ty.hasRuntimeRepresentation(s.ip)) {
211	return s.fail(.param_comptime_only, .{	211	return s.fail(.param_comptime_only, .{
...	@@ -268,8 +268,8 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -268,8 +268,8 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
268	const t = tracer.trace(@src());	268	const t = tracer.trace(@src());
269	defer t.end();	269	defer t.end();
270		270
271	const scratch_top = s.scratch.items.len;	271	const scratch = s.scratch.mark();
272	defer s.scratch.shrinkRetainingCapacity(scratch_top);	272	defer scratch.deinit();
273		273
274	const block = try s.addBlock();	274	const block = try s.addBlock();
275	try s.inst_map.add(in, block.block_index.toRef());	275	try s.inst_map.add(in, block.block_index.toRef());
...	@@ -284,10 +284,14 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -284,10 +284,14 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
284	};	284	};
285	}	285	}
286		286
287	if (scratch_top + 1 == s.scratch.items.len) {	287	if (scratch.len() == 1) {
288	const single_instruction = s.air_instructions.items(.tag)[@intFromEnum(block.block_index) + 1];	288	const air_instructions = s.air_instructions.slice();
		289	const single_inst_id = @intFromEnum(block.block_index) + 1;
		290	assert(@intFromEnum(scratch.slice(Air.Inst.Index)[0]) == single_inst_id);
		291
		292	const single_instruction = air_instructions.items(.tag)[single_inst_id];
289	if (single_instruction == .@"break") {	293	if (single_instruction == .@"break") {
290	const data: Air.Break = s.air_instructions.items(.data)[@intFromEnum(block.block_index) + 1]	294	const data: Air.Break = air_instructions.items(.data)[single_inst_id]
291	.decode(.@"break", single_instruction);	295	.decode(.@"break", single_instruction);
292	if (data.block_ref == block.block_index) {	296	if (data.block_ref == block.block_index) {
293	// This is a block that resolved to just a single value ref with	297	// This is a block that resolved to just a single value ref with
...	@@ -303,7 +307,7 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -303,7 +307,7 @@ pub fn analyzeBlock(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
303	}	307	}
304	}	308	}
305		309
306	return (try block.finish(s, scratch_top)).toRef();	310	return (try block.finish(s, scratch)).toRef();
307	}	311	}
308		312
309	fn analyzeCode(s: *Sema, in: Teg.Inst.Index) !Air.Inst.Ref {	313	fn analyzeCode(s: *Sema, in: Teg.Inst.Index) !Air.Inst.Ref {
...	@@ -534,7 +538,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -534,7 +538,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
534	for (proto.param_types, call.args.slice(&s.code), 0..) \|param, arg, i\| {	538	for (proto.param_types, call.args.slice(&s.code), 0..) \|param, arg, i\| {
535	const ref = try s.resolveRef(arg);	539	const ref = try s.resolveRef(arg);
536	const coerced = try s.coerceRef(	540	const coerced = try s.coerceRef(
537	in.op(Report.Operand.argument(@intCast(i))),	541	in.op(operandArgument(@intCast(i))),
538	ref,	542	ref,
539	param,	543	param,
540	);	544	);
...	@@ -543,7 +547,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -543,7 +547,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
543	} else {	547	} else {
544	for (call.args.slice(&s.code), 0..) \|arg, i\| {	548	for (call.args.slice(&s.code), 0..) \|arg, i\| {
545	const ref = try s.ensureValueRuntime(	549	const ref = try s.ensureValueRuntime(
546	in.op(Report.Operand.argument(@intCast(i))),	550	in.op(operandArgument(@intCast(i))),
547	try s.resolveRef(arg),	551	try s.resolveRef(arg),
548	);	552	);
549	scratch[i] = ref;	553	scratch[i] = ref;
...	@@ -571,7 +575,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -571,7 +575,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
571	defer s.arena.free(scratch);	575	defer s.arena.free(scratch);
572	for (call.args.slice(&s.code), 0..) \|arg, i\| {	576	for (call.args.slice(&s.code), 0..) \|arg, i\| {
573	const ref = try s.ensureValueRuntime(	577	const ref = try s.ensureValueRuntime(
574	in.op(Report.Operand.argument(@intCast(i))),	578	in.op(operandArgument(@intCast(i))),
575	try s.resolveRef(arg),	579	try s.resolveRef(arg),
576	);	580	);
577	scratch[i] = ref;	581	scratch[i] = ref;
...	@@ -635,7 +639,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -635,7 +639,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
635	const block = try s.analyzeBlock(in);	639	const block = try s.analyzeBlock(in);
636	switch (block.decode()) {	640	switch (block.decode()) {
637	.index => \|t\| if (s.tempAir().instTag(t) == .block) {	641	.index => \|t\| if (s.tempAir().instTag(t) == .block) {
638	try s.scratch.append(s.gpa, @intFromEnum(t));	642	try s.scratch.add(s.gpa, Air.Inst.Index, t);
639	},	643	},
640	else => {},	644	else => {},
641	}	645	}
...	@@ -692,7 +696,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -692,7 +696,7 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
692	.compile_error => {	696	.compile_error => {
693	const node: Teg.Inst.RefNode = s.code.instData(.compile_error, in);	697	const node: Teg.Inst.RefNode = s.code.instData(.compile_error, in);
694	const value = try s.resolveCoerceValue(	698	const value = try s.resolveCoerceValue(
695	in.op(Report.Operand.argument(0)),	699	in.op(operandArgument(0)),
696	node.operand,	700	node.operand,
697	.string,	701	.string,
698	);	702	);
...	@@ -705,42 +709,26 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -705,42 +709,26 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
705	.struct_decl => {	709	.struct_decl => {
706	const node: Teg.Inst.StructDecl = s.code.instPayload(.struct_decl, in);	710	const node: Teg.Inst.StructDecl = s.code.instPayload(.struct_decl, in);
707		711
708	const scratch_top = s.scratch.items.len;	712	const scratch = try s.scratch.reserveMulti(
709	try s.scratch.ensureUnusedCapacity(s.arena, node.field_len * 2);	713	s.arena,
710	s.scratch.items.len += node.field_len * 2;	714	.{ .keys = NullTerminatedString, .types = Type },
711	defer s.scratch.shrinkRetainingCapacity(scratch_top);	715	.{ node.field_len, node.field_len },
712		716	);
713	for (	717	defer scratch.deinit();
714	node.keys(&s.code),
715	// Keeping the slice pointer is fine for this loop, since scratch is not resized
716	s.scratch.items[scratch_top..][0..node.field_len],
717	) \|key, *dest\| {
718	dest.* = @intFromEnum(try s.ip.getOrPutString(
719	s.gpa,
720	key.slice(s.code.string_bytes),
721	.no_embedded_nulls,
722	));
723	}
724		718
725	for (	719	// Fill the first half with keys
726	node.types(&s.code),	720	for (scratch.slice(.keys), node.keys(&s.code)) \|*dest, src\| {
727	// We cannot reuse the pointer from scratch between calls to sema	721	dest.* = try s.ip.getOrPutString(s.gpa, src.slice(s.code.string_bytes), .no_embedded_nulls);
728	scratch_top + node.field_len..,
729	0..,
730	) \|ty, i, arg_i\| {
731	s.scratch.items[i] = @intFromEnum(try s.resolveCoerceValue(
732	in.op(Report.Operand.argument(@intCast(arg_i))),
733	ty,
734	.type,
735	));
736	}	722	}
737		723
738	const keys = s.scratch.items[scratch_top..][0..node.field_len];	724	// Fill the second half with coerced values.
739	const types = s.scratch.items[scratch_top + node.field_len ..][0..node.field_len];	725	for (node.types(&s.code), 0..) \|ty, i\| {
		726	scratch.at(.types, i).* = try s.resolveType(in.op(operandArgument(@intCast(i))), ty);
		727	}
740		728
741	return try s.makeValueAir(.{ .struct_type = .{	729	return try s.makeValueAir(.{ .struct_type = .{
742	.field_keys = @ptrCast(keys),	730	.field_keys = scratch.slice(.keys),
743	.field_types = @ptrCast(types),	731	.field_types = scratch.slice(.types),
744	} });	732	} });
745	},	733	},
746	.struct_init => {	734	.struct_init => {
...	@@ -760,22 +748,13 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -760,22 +748,13 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
760	var is_constant = true;	748	var is_constant = true;
761		749
762	// Allocate scratch space to store the values as they are being prepared.	750	// Allocate scratch space to store the values as they are being prepared.
763	// TODO: make this an abstraction	751	const scratch = try s.scratch.reserve(
764	const scratch_top = s.scratch.items.len;	752	s.arena,
765		753	Air.Inst.Ref.Optional,
766	try s.scratch.ensureUnusedCapacity(s.arena, struct_type.field_types.len);	754	struct_type.field_types.len,
767	const storage: []Air.Inst.Ref.Optional =	755	);
768	@ptrCast(s.scratch.unusedCapacitySlice()[0..struct_type.field_types.len]);	756	defer scratch.deinit();
769	s.scratch.items.len += storage.len;	757	@memset(scratch.slice(), .none);
770	@memset(storage, .none);
771
772	const scratch_end = s.scratch.items.len;
773	defer {
774	const from = s.scratch.items[scratch_end..];
775	const dest = s.scratch.items[scratch_top..][0..from.len];
776	std.mem.copyForwards(u32, dest, from);
777	s.scratch.shrinkRetainingCapacity(scratch_top + from.len);
778	}
779		758
780	for (node.keys(&s.code), node.inits(&s.code), 0..) \|init_key, init_value, i\| {	759	for (node.keys(&s.code), node.inits(&s.code), 0..) \|init_key, init_value, i\| {
781	// The order of `storage` is as ordered by the type, but this	760	// The order of `storage` is as ordered by the type, but this
...	@@ -789,21 +768,20 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -789,21 +768,20 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
789	has_errors = true;	768	has_errors = true;
790	try s.addError(.struct_init_unknown_field, .{	769	try s.addError(.struct_init_unknown_field, .{
791	.ty = ty,	770	.ty = ty,
792	.src = in.op(Report.Operand.argument(@intCast(i))).lazyNode(s.decl_index),	771	.src = in.op(operandArgument(@intCast(i))).lazyNode(s.decl_index),
793	});	772	});
794	continue;	773	continue;
795	};	774	};
796	if (storage[found_index] != .none) {	775	if (scratch.at(found_index).* != .none) {
797	has_errors = true;	776	has_errors = true;
798	try s.addError(.struct_init_duplicate_field, .{	777	try s.addError(.struct_init_duplicate_field, .{
799	.ty = ty,	778	.ty = ty,
800	.src = in.op(Report.Operand.argument(@intCast(i))).lazyNode(s.decl_index),	779	.src = in.op(operandArgument(@intCast(i))).lazyNode(s.decl_index),
801	});	780	});
802	continue;	781	continue;
803	}	782	}
804	// TODO: calling coerceRef / resolveRefRuntime will clobber the `storage` pointer
805	const coerced = s.resolveCoerceRef(	783	const coerced = s.resolveCoerceRef(
806	in.op(Report.Operand.argument(@intCast(i))),	784	in.op(operandArgument(@intCast(i))),
807	init_value,	785	init_value,
808	struct_type.field_types[found_index],	786	struct_type.field_types[found_index],
809	) catch \|e\| switch (e) {	787	) catch \|e\| switch (e) {
...	@@ -811,17 +789,18 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -811,17 +789,18 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
811	// Instead of bailing out with `try`, we will continue the loop.	789	// Instead of bailing out with `try`, we will continue the loop.
812	has_errors = true;	790	has_errors = true;
813	// Mark something non-null so that duplicate field errors are emitted.	791	// Mark something non-null so that duplicate field errors are emitted.
814	storage[found_index] = comptime Value.void.toAir().toOptional();	792	scratch.at(found_index).* = comptime Value.void.toAir().toOptional();
815	continue;	793	continue;
816	},	794	},
817	else => return e,	795	else => return e,
818	};	796	};
819	if (coerced.kind == .index) is_constant = false;	797	if (coerced.kind == .index) is_constant = false;
820	storage[found_index] = coerced.toOptional();	798	scratch.at(found_index).* = coerced.toOptional();
821	}	799	}
822		800
823	// Check for missing fields	801	// Check for missing fields
824	{	802	{
		803	const storage = scratch.slice();
825	var i: usize = 0;	804	var i: usize = 0;
826	while (mem.indexOfScalarPos(Air.Inst.Ref.Optional, storage, i, .none)) \|index\| {	805	while (mem.indexOfScalarPos(Air.Inst.Ref.Optional, storage, i, .none)) \|index\| {
827	try s.addError(.struct_init_missing_field, .{	806	try s.addError(.struct_init_missing_field, .{
...	@@ -839,8 +818,8 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -839,8 +818,8 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
839		818
840	if (is_constant) {	819	if (is_constant) {
841	// Convert all items in storage into a Value type	820	// Convert all items in storage into a Value type
842	const result_storage: []Value = @ptrCast(storage);	821	const result_storage = scratch.sliceReinterpret(Value);
843	for (storage, result_storage) \|ref, *value\| {	822	for (scratch.slice(), scratch.sliceReinterpret(Value)) \|ref, *value\| {
844	value.* = ref.unwrap().?.decode().value;	823	value.* = ref.unwrap().?.decode().value;
845	}	824	}
846	return try s.makeValueAir(.{ .struct_value = .{	825	return try s.makeValueAir(.{ .struct_value = .{
...	@@ -848,16 +827,80 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {	...	@@ -848,16 +827,80 @@ fn analyzeCodeInner(s: *Sema, in: Teg.Inst.Index) Error!Air.Inst.Ref {
848	.field_values = result_storage,	827	.field_values = result_storage,
849	} });	828	} });
850	} else {	829	} else {
851	// TODO: make this less error prone	830	// Create a runtime struct instantiation
852	const result_storage: []u32 = @ptrCast(storage);	831	const value_index = try s.air_extra.appendSlice(s.gpa, scratch.slice());
853	const value_index = try s.air_extra.alloc(s.gpa, result_storage.len);
854	@memcpy(s.air_extra.list.items[value_index..].ptr, result_storage);
855	return try s.addInstRef(.struct_init, .{	832	return try s.addInstRef(.struct_init, .{
856	.ty = ty,	833	.ty = ty,
857	.field_values = value_index,	834	.field_values = value_index,
858	});	835	});
859	}	836	}
860	},	837	},
		838
		839	.array_init => {
		840	const node: Teg.Inst.ArrayInit = s.code.instPayload(.array_init, in);
		841
		842	assert(node.list.len > 0);
		843
		844	const scratch = try s.scratch.reserve(s.arena, Air.Inst.Ref, node.list.len);
		845	defer scratch.deinit();
		846
		847	var item_type: ?Type = if (node.type_hint.unwrap()) \|ty\|
		848	try s.resolveType(in.op(.operand), ty)
		849	else
		850	null;
		851
		852	var is_constant = true;
		853
		854	for (node.list.slice(&s.code), 0..) \|item_teg_ref, i\| {
		855	const item = try s.resolveRef(item_teg_ref);
		856	const coerced = if (item_type) \|ty\|
		857	try s.coerceRef(
		858	in.op(operandArgument(@intCast(i))),
		859	item,
		860	ty,
		861	)
		862	else brk: {
		863	item_type = s.typeOfRef(item);
		864	break :brk item;
		865	};
		866
		867	if (coerced.kind == .index) is_constant = false;
		868
		869	scratch.at(i).* = coerced;
		870	}
		871
		872	const ty = try s.makeType(.{ .array_type = .{
		873	.item_type = item_type orelse unreachable,
		874	} });
		875
		876	if (is_constant) {
		877	// Convert all items in storage into a Value type
		878	const result_storage = scratch.sliceReinterpret(Value);
		879	for (scratch.slice(), scratch.sliceReinterpret(Value)) \|ref, *value\| {
		880	value.* = ref.decode().value;
		881	}
		882	return try s.makeValueAir(.{ .array_value = .{
		883	.type = ty,
		884	.items = result_storage,
		885	} });
		886	} else {
		887	// Create a runtime array instantiation
		888	return try s.addInstRef(.array_init, .{
		889	.ty = ty,
		890	.list = .{
		891	.start = try s.air_extra.appendSlice(s.gpa, scratch.slice()),
		892	.len = node.list.len,
		893	},
		894	});
		895	}
		896	},
		897
		898	.array_type => {
		899	const un: Teg.Inst.RefNode = s.code.instData(.array_type, in);
		900	const operand = try s.resolveType(in.op(.operand), un.operand);
		901	return s.makeValueAir(.{ .array_type = .{ .item_type = operand } });
		902	},
		903
861	else => \|tag\| std.debug.panic("TODO: analyze of .{s}", .{@tagName(tag)}),	904	else => \|tag\| std.debug.panic("TODO: analyze of .{s}", .{@tagName(tag)}),
862	}	905	}
863	}	906	}
...	@@ -871,15 +914,15 @@ fn analyzeRefToBlock(s: *Sema, in: Teg.Inst.Ref) Error!Air.Inst.Ref {	...	@@ -871,15 +914,15 @@ fn analyzeRefToBlock(s: *Sema, in: Teg.Inst.Ref) Error!Air.Inst.Ref {
871	const t = tracer.trace(@src());	914	const t = tracer.trace(@src());
872	defer t.end();	915	defer t.end();
873		916
874	const scratch_top = s.scratch.items.len;	917	const scratch = s.scratch.mark();
875	defer s.scratch.shrinkRetainingCapacity(scratch_top);	918	defer scratch.deinit();
876		919
877	const visited = s.resolveRef(in) catch \|err\| switch (err) {	920	const visited = s.resolveRef(in) catch \|err\| switch (err) {
878	error.HitNoReturn => Value.void.toAir(),	921	error.HitNoReturn => Value.void.toAir(),
879	else => return err,	922	else => return err,
880	};	923	};
881		924
882	if (scratch_top == s.scratch.items.len and visited.kind == .value) {	925	if (scratch.len() == 0 and visited.kind == .value) {
883	return visited;	926	return visited;
884	}	927	}
885		928
...	@@ -894,25 +937,27 @@ fn analyzeRefToBlock(s: *Sema, in: Teg.Inst.Ref) Error!Air.Inst.Ref {	...	@@ -894,25 +937,27 @@ fn analyzeRefToBlock(s: *Sema, in: Teg.Inst.Ref) Error!Air.Inst.Ref {
894	.block_ref = block.block_index,	937	.block_ref = block.block_index,
895	.value = visited,	938	.value = visited,
896	});	939	});
897	return (try block.finish(s, scratch_top)).toRef();	940	return (try block.finish(s, scratch)).toRef();
898	}	941	}
899		942
900	fn resolveRefExtra(s: *Sema, ref: Teg.Inst.Ref, mark: bool) Error!Air.Inst.Ref {	943	fn resolveRefExtra(s: *Sema, ref: Teg.Inst.Ref, mark: bool) Error!Air.Inst.Ref {
901	const index = ref.toIndex() orelse {	944	return switch (ref.decode()) {
902	return ref.toValue().?.toAir();	945	.value => \|value\| value.toAir(),
903	};	946	.index => \|index\| {
		947	if (s.inst_map.get(index)) \|air\| {
		948	if (mark) {
		949	switch (air.decode()) {
		950	.index => \|i\| s.markInst(i),
		951	else => {},
		952	}
		953	}
904		954
905	if (s.inst_map.get(index)) \|air\| {	955	return air;
906	if (mark) {
907	switch (air.decode()) {
908	.index => \|i\| s.markInst(i),
909	else => {},
910	}	956	}
911	}
912	return air;
913	}
914		957
915	return s.analyzeCode(index);	958	return s.analyzeCode(index);
		959	},
		960	};
916	}	961	}
917		962
918	fn resolveRef(s: *Sema, ref: Teg.Inst.Ref) Error!Air.Inst.Ref {	963	fn resolveRef(s: *Sema, ref: Teg.Inst.Ref) Error!Air.Inst.Ref {
...	@@ -997,21 +1042,21 @@ fn resolveType(s: *Sema, src: Teg.InstOp, ref: Teg.Inst.Ref) !Type {	...	@@ -997,21 +1042,21 @@ fn resolveType(s: *Sema, src: Teg.InstOp, ref: Teg.Inst.Ref) !Type {
997	}	1042	}
998		1043
999	/// Coerce `value` runtime ref to `coerce_type`, and emit an error at `src`'s location	1044	/// Coerce `value` runtime ref to `coerce_type`, and emit an error at `src`'s location
1000	fn coerceRef(s: *Sema, src: InstOp, value: Air.Inst.Ref, to: Type) !Air.Inst.Ref {	1045	fn coerceRef(s: *Sema, src: InstOp, ref: Air.Inst.Ref, to: Type) !Air.Inst.Ref {
1001	const t = tracer.traceFmt(@src(), "{} to {}", .{ value.dump(s.ip), to.dump(s.ip) });	1046	const t = tracer.traceFmt(@src(), "{} to {}", .{ ref.dump(s.ip), to.dump(s.ip) });
1002	defer t.end();	1047	defer t.end();
1003		1048
1004	const from = s.typeOfRef(value);	1049	const from = s.typeOfRef(ref);
1005	if (from == to) {	1050	if (from == to) {
1006	return value;	1051	return ref;
1007	}	1052	}
1008	if (from == .noreturn) {	1053	if (from == .noreturn) {
1009	return error.HitNoReturn;	1054	return error.HitNoReturn;
1010	}	1055	}
1011	if (from == .@"opaque") {	1056	if (from == .@"opaque") {
1012	return value;	1057	return ref;
1013	}	1058	}
1014	const index = switch (value.decode()) {	1059	const index = switch (ref.decode()) {
1015	.value => \|v\| return (try s.coerceValue(src, v, to)).toAir(),	1060	.value => \|v\| return (try s.coerceValue(src, v, to)).toAir(),
1016	.index => \|index\| index,	1061	.index => \|index\| index,
1017	};	1062	};
...	@@ -1053,7 +1098,7 @@ fn coerceRef(s: *Sema, src: InstOp, value: Air.Inst.Ref, to: Type) !Air.Inst.Ref	...	@@ -1053,7 +1098,7 @@ fn coerceRef(s: *Sema, src: InstOp, value: Air.Inst.Ref, to: Type) !Air.Inst.Ref
1053	}	1098	}
1054		1099
1055	/// Same as `coerceRef` but on a compile-time known value	1100	/// Same as `coerceRef` but on a compile-time known value
1056	fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) !Value {	1101	fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) Error!Value {
1057	const from = value.typeOf(s.ip);	1102	const from = value.typeOf(s.ip);
1058	if (from == to) {	1103	if (from == to) {
1059	return value;	1104	return value;
...	@@ -1069,11 +1114,7 @@ fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) !Value {	...	@@ -1069,11 +1114,7 @@ fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) !Value {
1069	.int32 => unreachable, // same type handled	1114	.int32 => unreachable, // same type handled
1070	.numeric_literal, .float => switch (value.toKey(s.ip)) {	1115	.numeric_literal, .float => switch (value.toKey(s.ip)) {
1071	.comptime_float, .float => \|val\| {	1116	.comptime_float, .float => \|val\| {
1072	if (!math.isFinite(val) or	1117	if (!core.inInt32Range(val)) {
1073	val < math.minInt(i32) or
1074	val > math.maxInt(i32) or
1075	(@rem(val, 1) != 0))
1076	{
1077	return s.fail(.comptime_float_to_int, .{	1118	return s.fail(.comptime_float_to_int, .{
1078	.val = val,	1119	.val = val,
1079	.src = s.lazyNode(src),	1120	.src = s.lazyNode(src),
...	@@ -1115,24 +1156,49 @@ fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) !Value {	...	@@ -1115,24 +1156,49 @@ fn coerceValue(s: *Sema, src: InstOp, value: Value, to: Type) !Value {
1115	// non-types do not coerce to types	1156	// non-types do not coerce to types
1116	},	1157	},
1117	.void => if (value == .void) return .void,	1158	.void => if (value == .void) return .void,
1118	else => {},	1159	else => {
		1160	if (to.toArrayType(s.ip)) \|to_array_type\| {
		1161	if (value.valueTag(s.ip) == .array_value) {
		1162	return s.coerceArrayValue(src, value, to_array_type.item_type);
		1163	}
		1164	}
		1165	},
1119	}	1166	}
1120	return s.coercionError(src, from, to);	1167	return s.coercionError(src, from, to);
1121	}	1168	}
1122		1169
1123	fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) !Air.Inst.Ref {	1170	fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) Error!Air.Inst.Ref {
1124	switch (ref.decode()) {	1171	switch (ref.decode()) {
1125	.value => \|v\| {	1172	.value => \|v\| {
1126	const ty = v.typeOf(s.ip);	1173	const ty = v.typeOf(s.ip);
1127	switch (ty) {	1174	switch (ty) {
1128	.numeric_literal => {	1175	.numeric_literal => {
1129	try s.report.warn(.numeric_int_var_ambiguity, .{	1176	const float = v.toFloat(s.ip) orelse unreachable;
1130	.src = s.lazyNode(src),	1177
1131	});	1178	if (!core.inInt32Range(float)) {
		1179	try s.report.warn(.numeric_int_var_ambiguity, .{
		1180	.src = s.lazyNode(src),
		1181	});
		1182	}
		1183
1132	return (try s.makeValue(.{	1184	return (try s.makeValue(.{
1133	.float = v.toFloat(s.ip) orelse unreachable,	1185	.float = float,
1134	})).toAir();	1186	})).toAir();
1135	},	1187	},
		1188	.numeric_literal_array => {
		1189	try s.report.warn(.numeric_int_array_var_ambiguity, .{
		1190	.src = s.lazyNode(src),
		1191	});
		1192	return (try s.coerceArrayValue(src, v, .float)).toAir();
		1193	},
		1194	.noreturn_array => {
		1195	if (v.valueData(s.ip, .array_value).get(s.ip).items_len != 0) {
		1196	return s.fail(.runtime_incompatible_type, .{
		1197	.src = s.lazyNode(src),
		1198	.type = ty,
		1199	});
		1200	}
		1201	},
1136	.type,	1202	.type,
1137	.noreturn,	1203	.noreturn,
1138	=> return s.fail(.runtime_incompatible_type, .{	1204	=> return s.fail(.runtime_incompatible_type, .{
...	@@ -1147,12 +1213,11 @@ fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) !Air.Inst.Ref {	...	@@ -1147,12 +1213,11 @@ fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) !Air.Inst.Ref {
1147	.string,	1213	.string,
1148	.void,	1214	.void,
1149	=> {},	1215	=> {},
1150	_ => switch (ty.tag(s.ip)) {	1216	_ => if (!ty.hasRuntimeRepresentation(s.ip)) {
1151	.simple_type => unreachable, // handled above	1217	return s.fail(.runtime_incompatible_type, .{
1152		1218	.src = s.lazyNode(src),
1153	// Allowed at runtime	1219	.type = ty,
1154	.function_type => {},	1220	});
1155	.struct_type => {},
1156	},	1221	},
1157	}	1222	}
1158	},	1223	},
...	@@ -1161,6 +1226,24 @@ fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) !Air.Inst.Ref {	...	@@ -1161,6 +1226,24 @@ fn ensureValueRuntime(s: *Sema, src: InstOp, ref: Air.Inst.Ref) !Air.Inst.Ref {
1161	return ref;	1226	return ref;
1162	}	1227	}
1163		1228
		1229	fn coerceArrayValue(s: *Sema, src: InstOp, value: Value, item_type: Type) !Value {
		1230	const array: InternPool.Tag.ArrayValue, var trail = value.valueData(s.ip, .array_value).getTrail(s.ip);
		1231
		1232	const scratch = try s.scratch.reserve(s.arena, Value, array.items_len);
		1233	defer scratch.deinit();
		1234
		1235	const from = trail.readValueSlice(array.items_len);
		1236
		1237	for (0..from.len) \|i\| {
		1238	scratch.at(i).* = try s.coerceValue(src, from.get(s.ip)[i], item_type);
		1239	}
		1240
		1241	return try s.makeValue(.{ .array_value = .{
		1242	.type = try s.makeType(.{ .array_type = .{ .item_type = item_type } }),
		1243	.items = scratch.slice(),
		1244	} });
		1245	}
		1246
1164	fn resolveDecl(s: *Sema, src: InstOp, decl_index: Decl.Index) Error!Value {	1247	fn resolveDecl(s: *Sema, src: InstOp, decl_index: Decl.Index) Error!Value {
1165	const decl = s.ip.declPtr(decl_index);	1248	const decl = s.ip.declPtr(decl_index);
1166	switch (decl.analysis) {	1249	switch (decl.analysis) {
...	@@ -1382,8 +1465,8 @@ fn comptimeBin(s: *Sema, op: BinaryOp, lhs: Value, rhs: Value) !Value {	...	@@ -1382,8 +1465,8 @@ fn comptimeBin(s: *Sema, op: BinaryOp, lhs: Value, rhs: Value) !Value {
1382	const IncompleteBlock = struct {	1465	const IncompleteBlock = struct {
1383	block_index: Air.Inst.Index,	1466	block_index: Air.Inst.Index,
1384		1467
1385	pub fn finish(block: IncompleteBlock, s: *Sema, scratch_top: usize) !Air.Inst.Index {	1468	pub fn finish(block: IncompleteBlock, s: *Sema, scratch_mark: core.U32Stack.Mark) !Air.Inst.Index {
1386	s.setInstData(.block, block.block_index, try s.scratchToIndexList(scratch_top));	1469	s.setInstData(.block, block.block_index, try s.scratchMarkToIndexList(scratch_mark));
1387	return block.block_index;	1470	return block.block_index;
1388	}	1471	}
1389	};	1472	};
...	@@ -1404,7 +1487,7 @@ fn addInstRef(s: *Sema, comptime tag: Air.Inst.Tag, data: tag.Data()) !Air.Inst.	...	@@ -1404,7 +1487,7 @@ fn addInstRef(s: *Sema, comptime tag: Air.Inst.Tag, data: tag.Data()) !Air.Inst.
1404	.flags = .{},	1487	.flags = .{},
1405	});	1488	});
1406	const index: Air.Inst.Index = @enumFromInt(s.air_instructions.len - 1);	1489	const index: Air.Inst.Index = @enumFromInt(s.air_instructions.len - 1);
1407	try s.scratch.append(s.arena, @intFromEnum(index));	1490	try s.scratch.add(s.arena, Air.Inst.Index, index);
1408	return index.toRef();	1491	return index.toRef();
1409	}	1492	}
1410		1493
...	@@ -1423,27 +1506,30 @@ fn makeValue(s: *Sema, key: InternPool.Key) !Value {	...	@@ -1423,27 +1506,30 @@ fn makeValue(s: *Sema, key: InternPool.Key) !Value {
1423	return try s.ip.get(s.gpa, key);	1506	return try s.ip.get(s.gpa, key);
1424	}	1507	}
1425		1508
		1509	fn makeType(s: *Sema, key: InternPool.Key) !Type {
		1510	return (try s.makeValue(key)).toTypeUnsafe(s.ip);
		1511	}
		1512
1426	fn makeValueAir(s: *Sema, key: InternPool.Key) !Air.Inst.Ref {	1513	fn makeValueAir(s: *Sema, key: InternPool.Key) !Air.Inst.Ref {
1427	return (try s.makeValue(key)).toAir();	1514	return (try s.makeValue(key)).toAir();
1428	}	1515	}
1429		1516
1430	fn mapTeg(s: *Sema, inst: Teg.Inst.Ref) Air.Inst.Ref {	1517	fn mapTeg(s: *Sema, inst: Teg.Inst.Ref) Air.Inst.Ref {
1431	if (inst.toValue()) \|interned\| {	1518	return switch (inst.decode()) {
1432	return interned.toAir();	1519	.value => \|value\| value.toAir(),
1433	}	1520	.index => \|index\| s.inst_map.get(index) orelse {
1434	const index = inst.toIndex().?;	1521	if (std.debug.runtime_safety) {
1435	return s.inst_map.get(index) orelse {	1522	std.debug.panic("Unmapped operand %{d}", .{@intFromEnum(index)});
1436	if (std.debug.runtime_safety) {	1523	}
1437	std.debug.panic("Unmapped operand %{d}", .{@intFromEnum(index)});	1524	unreachable;
1438	}	1525	},
1439	unreachable;
1440	};	1526	};
1441	}	1527	}
1442		1528
1443	fn scratchToIndexList(s: *Sema, scratch_top: usize) !Air.IndexList {	1529	fn scratchMarkToIndexList(s: *Sema, mark: core.U32Stack.Mark) !Air.IndexList {
1444	const items = s.scratch.items[scratch_top..];	1530	const items = mark.slice(u32);
1445	const extra_top = s.air_extra.list.items.len;	1531	const extra_top = s.air_extra.list.items.len;
1446	try s.air_extra.list.appendSlice(s.gpa, s.scratch.items[scratch_top..]);	1532	try s.air_extra.list.appendSlice(s.gpa, items);
1447	return .{	1533	return .{
1448	.start = @intCast(extra_top),	1534	.start = @intCast(extra_top),
1449	.len = @intCast(items.len),	1535	.len = @intCast(items.len),
...	@@ -1524,12 +1610,15 @@ const Teg = core.Teg;	...	@@ -1524,12 +1610,15 @@ const Teg = core.Teg;
1524	const InstOp = Teg.InstOp;	1610	const InstOp = Teg.InstOp;
1525		1611
1526	const Air = core.Air;	1612	const Air = core.Air;
1527	const Report = core.Report;
1528	const Ast = core.Ast;	1613	const Ast = core.Ast;
1529	const store = core.array;	1614	const store = core.array;
1530	const tracer = @import("tracer");	1615
		1616	const Report = core.Report;
		1617	const operandArgument = Report.Operand.argument;
1531		1618
1532	const InternPool = core.InternPool;	1619	const InternPool = core.InternPool;
1533	const Value = InternPool.Value;	1620	const Value = InternPool.Value;
1534	const Type = InternPool.Type;	1621	const Type = InternPool.Type;
1535	const NullTerminatedString = InternPool.NullTerminatedString;	1622	const NullTerminatedString = InternPool.NullTerminatedString;
		1623
		1624	const tracer = @import("tracer");

src/core/Teg.Dump.zig+50-17

...	@@ -101,6 +101,7 @@ const State = struct {	...	@@ -101,6 +101,7 @@ const State = struct {
101	try tty.setColor(writer, .reset);	101	try tty.setColor(writer, .reset);
102	},	102	},
103	inline .field,	103	inline .field,
		104	.index,
104	.add,	105	.add,
105	.sub,	106	.sub,
106	.mul,	107	.mul,
...	@@ -172,6 +173,7 @@ const State = struct {	...	@@ -172,6 +173,7 @@ const State = struct {
172	.fetch,	173	.fetch,
173	.compile_error,	174	.compile_error,
174	.type_of,	175	.type_of,
		176	.array_type,
175	=> \|comptime_tag\| {	177	=> \|comptime_tag\| {
176	const data = teg.instData(comptime_tag, inst);	178	const data = teg.instData(comptime_tag, inst);
177	try writer.writeAll("(");	179	try writer.writeAll("(");
...	@@ -255,28 +257,59 @@ const State = struct {	...	@@ -255,28 +257,59 @@ const State = struct {
255	try s.newline(writer);	257	try s.newline(writer);
256	try writer.writeAll("}");	258	try writer.writeAll("}");
257	},	259	},
		260	.array_init => {
		261	const data: Teg.Inst.ArrayInit = teg.instPayload(.array_init, inst);
		262
		263	if (data.type_hint.unwrap()) \|type_hint\| {
		264	try writer.writeAll("(");
		265	try s.dumpRef(writer, type_hint);
		266	try writer.writeAll(", ");
		267	}
		268
		269	try writer.writeAll("[");
		270
		271	s.indent += 1;
		272
		273	for (data.list.slice(teg)) \|item\| {
		274	try s.newline(writer);
		275	try s.dumpRef(writer, item);
		276	try writer.writeAll(",");
		277	}
		278
		279	s.indent -= 1;
		280	try s.newline(writer);
		281
		282	try writer.writeAll("]");
		283
		284	if (data.type_hint != .none)
		285	try writer.writeAll(")");
		286	},
258	}	287	}
259	}	288	}
260		289
261	fn dumpRef(s: *State, writer: anytype, ref: Teg.Inst.Ref) !void {	290	fn dumpRef(s: *State, writer: anytype, ref: Teg.Inst.Ref) !void {
262	if (ref.toIndex()) \|index\| {	291	switch (ref.decode()) {
263	try s.dumpInst(writer, index);	292	.index => \|index\| try s.dumpInst(writer, index),
264	} else {	293	.value => {
265	try s.tty.setColor(writer, .blue);	294	try s.tty.setColor(writer, .blue);
266	try writer.print("%{s}", .{@tagName(ref)});	295	try writer.print("%{s}", .{@tagName(ref)});
267	try s.tty.setColor(writer, .reset);	296	try s.tty.setColor(writer, .reset);
		297	},
268	}	298	}
269	}	299	}
270		300
271	fn dumpRefMarker(s: *State, writer: anytype, ref: Teg.Inst.Ref) !void {	301	fn dumpRefMarker(s: *State, writer: anytype, ref: Teg.Inst.Ref) !void {
272	if (ref.toIndex()) \|index\| {	302	switch (ref.decode()) {
273	try s.tty.setColor(writer, .blue);	303	.index => \|index\| {
274	try writer.print("%{d}", .{@intFromEnum(index)});	304	try s.tty.setColor(writer, .blue);
275	try s.tty.setColor(writer, .reset);	305	try writer.print("%{d}", .{@intFromEnum(index)});
276	} else {	306	try s.tty.setColor(writer, .reset);
277	try s.tty.setColor(writer, .blue);	307	},
278	try writer.print("%{s}", .{@tagName(ref)});	308	.value => {
279	try s.tty.setColor(writer, .reset);	309	try s.tty.setColor(writer, .blue);
		310	try writer.print("%{s}", .{@tagName(ref)});
		311	try s.tty.setColor(writer, .reset);
		312	},
280	}	313	}
281	}	314	}
282		315
...	@@ -356,6 +389,6 @@ pub fn format(	...	@@ -356,6 +389,6 @@ pub fn format(
356	const std = @import("std");	389	const std = @import("std");
357	const assert = std.debug.assert;	390	const assert = std.debug.assert;
358		391
359	const Teg = @import("Teg.zig");	392	const core = @import("mod.zig");
360		393	const Teg = core.Teg;
361	const detectTTYFromWriter = @import("util.zig").detectTTYFromWriter;	394	const detectTTYFromWriter = core.detectTTYFromWriter;

src/core/Teg.zig+40-22

 @@ -46,6 +46,9 @@ pub const Inst = struct {
         struct_decl,
         struct_init,
+        array_type,
+        array_init,
         add,
         sub,
         mul,
 @@ -70,6 +73,7 @@ pub const Inst = struct {
         bool_not,
         bit_not,
         field,
+        index,
         call,
         @"comptime",
 @@ -103,6 +107,7 @@ pub const Inst = struct {
                 .js_new => PlNode(JsNew),
                 .struct_decl => PlNode(StructDecl),
                 .struct_init => PlNode(StructInit),
+                .array_init => PlNode(ArrayInit),
                 // Single instruction operand
                 .memory,
 @@ -118,10 +123,12 @@ pub const Inst = struct {
                 .compile_error,
                 .@"comptime",
                 .type_of,
+                .array_type,
                 => RefNode,
                 // Two instruction operands
                 .field,
+                .index,
                 .add,
                 .sub,
                 .mul,
 @@ -150,7 +157,7 @@ pub const Inst = struct {
         }
     };
-    /// TODO: make enum? idk
+    // TODO: make this an enum
     const NodeOffset = i32;
     pub fn PlNode(comptime Payload: type) type {
 @@ -184,7 +191,7 @@ pub const Inst = struct {
         main_module_inst = 0,
         _,
-        pub const static_len = @intFromEnum(Ref.empty_string) + 1;
+        pub const static_len = @intFromEnum(Ref.empty_array) + 1;
         pub fn toRef(i: Index) Inst.Ref {
             return @enumFromInt(static_len + @intFromEnum(i));
 @@ -229,6 +236,8 @@ pub const Inst = struct {
         noreturn_type,
         type_type,
         numeric_literal_type,
+        numeric_literal_array_type,
+        noreturn_array_type,
         void,
         bool_true,
 @@ -237,11 +246,7 @@ pub const Inst = struct {
         float_zero,
         nan,
         empty_string,
-        standard_library,
+        empty_array,
-        /// This Ref does not correspond to any instruction or constant
-        /// value and may instead be used as a sentinel to indicate null.
-        none = std.math.maxInt(u32),
         _,
 @@ -258,8 +263,7 @@ pub const Inst = struct {
                 .{ .value = @enumFromInt(ref_int) };
         }
-        pub fn toIndex(ref: Ref) ?Index {
+        pub fn index(ref: Ref) ?Index {
-            assert(ref != .none);
             const ref_int = @intFromEnum(ref);
             if (ref_int >= Index.static_len) {
                 return @enumFromInt(ref_int - Index.static_len);
 @@ -268,12 +272,7 @@ pub const Inst = struct {
             }
         }
-        pub fn toIndexAllowNone(inst: Ref) ?Index {
+        pub fn value(inst: Ref) ?InternPool.Value {
-            if (inst == .none) return null;
-            return toIndex(inst);
-        }
-        pub fn toValue(inst: Ref) ?InternPool.Value {
             const ref_int = @intFromEnum(inst);
             // TODO: is this > or >=
 @@ -282,6 +281,15 @@ pub const Inst = struct {
             return @enumFromInt(ref_int);
         }
+        pub const Optional = enum(u32) {
+            none = std.math.maxInt(u32),
+            _,
+            pub fn unwrap(opt: Optional) ?Ref {
+                return if (opt != .none) @enumFromInt(@intFromEnum(opt)) else null;
+            }
+        };
     };
     pub const Bin = struct {
 @@ -359,6 +367,15 @@ pub const Inst = struct {
         }
     };
+    pub const ArrayInit = struct {
+        /// Optionally provide a result type for more reliable type coercion.
+        /// If specified, this must be an array type. Otherwise, the first
+        /// element's type is used.
+        type_hint: Ref.Optional,
+        /// The items in the array
+        list: RefList,
+    };
     /// This will contain trailing data depending on the .kind
     pub const Decl = struct {
         name: NullTerminatedString,
 @@ -562,9 +579,10 @@ const std = @import("std");
 const mem = std.mem;
 const assert = std.debug.assert;
-const Cache = @import("Cache.zig");
+const core = @import("mod.zig");
+const Cache = core.Cache;
-const Ast = @import("Ast.zig");
+const Ast = core.Ast;
 const Unused = Ast.Unused;
 const NodeIndex = Ast.NodeIndex;
 const TokenIndex = Ast.TokenIndex;
 @@ -575,14 +593,14 @@ const optionalTokenIndex = OptionalTokenIndex.init;
 const optionalNodeIndex = OptionalNodeIndex.init;
 const optionalExtraIndex = OptionalExtraIndex.init;
-const dod = @import("array.zig");
+const dod = core.array;
 const Float = dod.Float;
-const InternPool = @import("InternPool.zig");
+const InternPool = core.InternPool;
-const Air = @import("Air.zig");
+const Air = core.Air;
-const Comp = @import("Comp.zig");
+const Comp = core.Comp;
-const Report = @import("Report.zig");
+const Report = core.Report;
 const LazyNode = Report.LazyNode;

src/core/Transform.zig+35-20

 @@ -235,7 +235,7 @@ const BuiltInIds = std.StaticStringMap(Inst.Ref).initComptime(.{
     .{ "bool", .bool_type },
     .{ "noreturn", .noreturn_type },
     .{ "type", .type_type },
-    .{ "std", .standard_library },
+    // .{ "std", .standard_library },
 });
 fn transformModule(t: *Transform, module_node: NodeIndex) Allocator.Error!Inst.Index {
 @@ -559,14 +559,14 @@ fn transformExpressionToBlock(
         // TODO: evaluate if `if` blocks would be fine in sema with instruction refs
         // with this extra if check here, we filter out non-blocks.
-        if (result.toValue() != null) {
+        if (result.value() != null) {
             assert(block == null);
             return result;
         }
     }
     if (expr) |result| {
-        if (result.toIndex()) |index| {
+        if (result.index()) |index| {
             if (t.insts.items(.tag)[@intFromEnum(index)] == .block) {
                 return result;
             }
 @@ -685,7 +685,7 @@ pub const Builtin = enum {
         }
         const base = try t.transformExpression(decl, args[0]) orelse return null;
-        const args_list = try t.transformCallArgs(decl, args[1..]) orelse return null;
+        const args_list = try t.transformExpressionList(decl, args[1..]) orelse return null;
         return try t.addInstRef(.{
             .tag = .js_new,
 @@ -923,6 +923,7 @@ fn transformExpression(t: *Transform, decl: BlockContext, node: NodeIndex) Alloc
         inline .negate,
         .bool_not,
         .bit_not,
+        .array_type,
         => |tag| {
             const ast_un = t.ast.nodeData(node).un;
             const teg_tag = @field(Teg.Inst.Tag, @tagName(tag));
 @@ -1048,7 +1049,7 @@ fn transformExpression(t: *Transform, decl: BlockContext, node: NodeIndex) Alloc
             const args = t.ast.extraData(call.extra, Ast.Call).args.slice(&t.ast);
             const base = try t.transformExpression(decl, call.base) orelse return null;
-            const args_list = try t.transformCallArgs(decl, args) orelse return null;
+            const args_list = try t.transformExpressionList(decl, args) orelse return null;
             const call_inst = try t.addInstRef(.{
                 .tag = .call,
 @@ -1227,11 +1228,9 @@ fn transformExpression(t: *Transform, decl: BlockContext, node: NodeIndex) Alloc
             ) |field_node, i, j| {
                 const field = t.ast.fullStructField(field_node);
-                if (mem.startsWith(u8, field.id, "@")) {
+                const id = try t.decodeIdentifier(field.id);
-                    @panic("TODO: string identifiers");
-                }
-                t.extra.setU32(i, @intFromEnum(try t.addNullTerminatedString(field.id)));
+                t.extra.setU32(i, @intFromEnum(try t.addNullTerminatedString(id)));
                 t.extra.setU32(j, @intFromEnum(try t.transformExpressionToBlock(decl, field.type, false)));
             }
 @@ -1264,11 +1263,9 @@ fn transformExpression(t: *Transform, decl: BlockContext, node: NodeIndex) Alloc
             ) |field_node, i, j| {
                 const field = t.ast.fullStructField(field_node);
-                if (mem.startsWith(u8, field.id, "@")) {
+                const id = try t.decodeIdentifier(field.id);
-                    @panic("TODO: string identifiers");
-                }
-                t.extra.setU32(i, @intFromEnum(try t.addNullTerminatedString(field.id)));
+                t.extra.setU32(i, @intFromEnum(try t.addNullTerminatedString(id)));
                 t.extra.setU32(j, @intFromEnum((try t.transformExpression(decl, field.type)) orelse
                     @panic("TODO: print better error")));
             }
 @@ -1286,11 +1283,29 @@ fn transformExpression(t: *Transform, decl: BlockContext, node: NodeIndex) Alloc
             });
         },
+        .array_init => {
+            const array_init = t.ast.nodeData(node).list;
+            const items = try t.transformExpressionList(decl, array_init.slice(&t.ast)) orelse
+                return null;
+            return try t.addInstRef(.{
+                .tag = .array_init,
+                .data = EncodedData.encode(.array_init, .{
+                    .src_node = decl.nodeOffset(node),
+                    .extra_index = try t.extra.append(t.gpa, Inst.ArrayInit, .{
+                        .type_hint = .none,
+                        .list = items,
+                    }),
+                }),
+            });
+        },
         else => |tag| std.debug.panic("TODO: expr {s}", .{@tagName(tag)}),
     }
 }
-fn transformCallArgs(t: *Transform, decl: BlockContext, args: []const NodeIndex) !?RefList {
+fn transformExpressionList(t: *Transform, decl: BlockContext, args: []const NodeIndex) !?RefList {
     const extra_top = try t.extra.alloc(t.gpa, args.len);
     for (args, extra_top..) |arg, i| {
 @@ -1492,7 +1507,7 @@ fn transformBlockStatement(
                 .node = node,
                 .data = switch (var_decl.is_const) {
                     true => .{ .immutable = mem_ref },
-                    false => .{ .mutable = mem_ref.toIndex().? },
+                    false => .{ .mutable = mem_ref.index().? },
                 },
             };
 @@ -1696,16 +1711,16 @@ fn addDecodedSlicedString(t: *Transform, escaped: []const u8) !SlicedString {
     const decoded = if (Tokenizer.stringHasEscapes(escaped)) brk: {
         const len = Tokenizer.decodeStringCount(escaped);
-        // use the scratch arraylist as a temporary storage for
+        // Use the scratch arraylist as a temporary storage for decoding the
-        // decoding the string. this is done so that duplicate
+        // string. this is done so that duplicate strings will get de-duplicated
-        // strings will get de-duplicated in string_bytes
+        // in string_bytes. It is more likely that there will be remaining bytes
-        //
+        // in `.scratch` vs `.id_decode_buf`
-        // TODO: see if this is a useless optimization
         try t.scratch.ensureUnusedCapacity(t.gpa, @divFloor(len, @sizeOf(u32)) + 1);
         const buf = mem.sliceAsBytes(t.scratch.unusedCapacitySlice());
         break :brk Tokenizer.decodeStringBuf(escaped, buf);
     } else escaped;
     return t.addSlicedString(decoded);
 }

src/core/array.zig+9

...	@@ -372,6 +372,15 @@ pub fn ExtraStore(comptime set_kind: StoreKind, comptime set_mutability: Mutabil	...	@@ -372,6 +372,15 @@ pub fn ExtraStore(comptime set_kind: StoreKind, comptime set_mutability: Mutabil
372	store.list.items.len += len;	372	store.list.items.len += len;
373	return @intCast(idx);	373	return @intCast(idx);
374	}	374	}
		375
		376	pub fn appendSlice(store: *Store, gpa: Allocator, data: anytype) !u32 {
		377	const idx = store.list.items.len;
		378	comptime assert(@sizeOf(@TypeOf(data[0])) == @sizeOf(u32));
		379	comptime assert(@alignOf(@TypeOf(data[0])) == @alignOf(u32));
		380	try store.list.appendSlice(gpa, @ptrCast(data));
		381	store.list.items.len += data.len;
		382	return @intCast(idx);
		383	}
375	};	384	};
376	}	385	}
377		386

src/core/js/Link.zig+36-1

...	@@ -289,6 +289,19 @@ fn printValue(link: *Link, value: InternPool.Value, level: Level, writer: anytyp	...	@@ -289,6 +289,19 @@ fn printValue(link: *Link, value: InternPool.Value, level: Level, writer: anytyp
289	try writer.writeAll(")");	289	try writer.writeAll(")");
290	},	290	},
291		291
		292	.array_value => \|array_value\| {
		293	try writer.writeAll("[");
		294
		295	for (array_value.items, 0..) \|inner_value, i\| {
		296	if (i != 0)
		297	try writer.writeAll(",");
		298
		299	// TODO: handle special identifiers
		300	try link.printValue(inner_value, .assignment, writer);
		301	}
		302	try writer.writeAll("]");
		303	},
		304
292	else => unreachable, // this value is not a plain_value	305	else => unreachable, // this value is not a plain_value
293	}	306	}
294	}	307	}
...	@@ -410,6 +423,18 @@ fn printExprLevel(	...	@@ -410,6 +423,18 @@ fn printExprLevel(
410	try writer.writeAll(")");	423	try writer.writeAll(")");
411	},	424	},
412		425
		426	.index => {
		427	const bin: Tree.Bin = tree.nodeData(.index, node);
		428	if (Level.access_and_call.needsParens(level))
		429	try writer.writeAll("(");
		430	try link.printExprLevel(tree, bin.lhs, level, writer);
		431	try writer.writeAll("[");
		432	try link.printExprLevel(tree, bin.rhs, level, writer);
		433	try writer.writeAll("]");
		434	if (Level.access_and_call.needsParens(level))
		435	try writer.writeAll(")");
		436	},
		437
413	inline .negate,	438	inline .negate,
414	.bool_not,	439	.bool_not,
415	.pre_dec,	440	.pre_dec,
...	@@ -505,7 +530,7 @@ fn printExprLevel(	...	@@ -505,7 +530,7 @@ fn printExprLevel(
505		530
506	try writer.writeAll(":");	531	try writer.writeAll(":");
507		532
508	try link.printExpr(tree, value, writer);	533	try link.printExprLevel(tree, value, .assignment, writer);
509	}	534	}
510		535
511	try writer.writeAll("}");	536	try writer.writeAll("}");
...	@@ -513,6 +538,16 @@ fn printExprLevel(	...	@@ -513,6 +538,16 @@ fn printExprLevel(
513	if (level == .statement)	538	if (level == .statement)
514	try writer.writeAll(")");	539	try writer.writeAll(")");
515	},	540	},
		541
		542	.array => {
		543	const items: Tree.IndexList = tree.nodeData(.array, node);
		544	try writer.writeAll("[");
		545	for (items.slice(tree), 0..) \|item, i\| {
		546	if (i != 0) try writer.writeAll(", ");
		547	try link.printExprLevel(tree, item, .assignment, writer);
		548	}
		549	try writer.writeAll("]");
		550	},
516	}	551	}
517	}	552	}
518		553

src/core/js/NodeGen.zig+5-1

...	@@ -422,7 +422,7 @@ fn codeGenInst(c: *NodeGen, inst: Air.Inst.Index) Error!void {	...	@@ -422,7 +422,7 @@ fn codeGenInst(c: *NodeGen, inst: Air.Inst.Index) Error!void {
422	try c.markExpression(inst, node);	422	try c.markExpression(inst, node);
423	},	423	},
424		424
425	// else => \|tag\| std.debug.panic("TODO JS codeGenInst for .{s}", .{@tagName(tag)}),	425	else => \|tag\| std.debug.panic("TODO JS codeGenInst for .{s}", .{@tagName(tag)}),
426	}	426	}
427	}	427	}
428		428
...	@@ -495,6 +495,7 @@ fn valueToExpression(c: *NodeGen, v: Value) !Node.Index {	...	@@ -495,6 +495,7 @@ fn valueToExpression(c: *NodeGen, v: Value) !Node.Index {
495	.function_type,	495	.function_type,
496	.simple_type,	496	.simple_type,
497	.struct_type,	497	.struct_type,
		498	.array_type,
498	=> unreachable, // Type values are not allowed here	499	=> unreachable, // Type values are not allowed here
499		500
500	.int32,	501	.int32,
...	@@ -503,6 +504,7 @@ fn valueToExpression(c: *NodeGen, v: Value) !Node.Index {	...	@@ -503,6 +504,7 @@ fn valueToExpression(c: *NodeGen, v: Value) !Node.Index {
503	.string,	504	.string,
504	.simple_value,	505	.simple_value,
505	.struct_value,	506	.struct_value,
		507	.array_value,
506	=> return try c.add(.plain_value, .{ .value = v }),	508	=> return try c.add(.plain_value, .{ .value = v }),
507		509
508	// Hoist functions as top level values	510	// Hoist functions as top level values
...	@@ -666,6 +668,8 @@ fn canLowerToExpression(c: *const NodeGen, inst: Air.Inst.Ref) bool {	...	@@ -666,6 +668,8 @@ fn canLowerToExpression(c: *const NodeGen, inst: Air.Inst.Ref) bool {
666	.bool_not,	668	.bool_not,
667	.store,	669	.store,
668	.struct_init,	670	.struct_init,
		671	.array_init,
		672	.index,
669	=> true,	673	=> true,
670		674
671	// JavaScript variable declarations require statements.	675	// JavaScript variable declarations require statements.

src/core/js/Tree.zig+4

...	@@ -45,6 +45,8 @@ pub const Tag = enum {	...	@@ -45,6 +45,8 @@ pub const Tag = enum {
45	field,	45	field,
46	ternary,	46	ternary,
47	object_literal,	47	object_literal,
		48	array,
		49	index,
48	// Prefix ops	50	// Prefix ops
49	negate,	51	negate,
50	bool_not,	52	bool_not,
...	@@ -81,6 +83,7 @@ pub const Tag = enum {	...	@@ -81,6 +83,7 @@ pub const Tag = enum {
81	.eq,	83	.eq,
82	.lt,	84	.lt,
83	.gt,	85	.gt,
		86	.index,
84	=> Bin,	87	=> Bin,
85	.ternary => Ternary,	88	.ternary => Ternary,
86	.negate,	89	.negate,
...	@@ -89,6 +92,7 @@ pub const Tag = enum {	...	@@ -89,6 +92,7 @@ pub const Tag = enum {
89	.pre_dec,	92	.pre_dec,
90	=> Un,	93	=> Un,
91	.object_literal => ObjectLiteral,	94	.object_literal => ObjectLiteral,
		95	.array => IndexList,
92	.call, .new => Call,	96	.call, .new => Call,
93	.field => Field,	97	.field => Field,
94	.stmt_if => StmtIf,	98	.stmt_if => StmtIf,

src/core/main.zig+7-7

 @@ -28,14 +28,14 @@ pub fn main() !void {
     }
     const use_gpa = builtin.mode == .Debug;
-    var gpa: if (use_gpa) std.heap.GeneralPurposeAllocator(.{
+    var gpa = if (use_gpa)
-        .stack_trace_frames = 100,
+        std.heap.GeneralPurposeAllocator(.{
-    }) else struct {} = .{};
+            .stack_trace_frames = 100,
-    defer _ = if (use_gpa) gpa.deinit();
+        }){}
-    const alloc = if (use_gpa)
-        gpa.allocator()
     else
-        std.heap.c_allocator;
+        std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer _ = if (use_gpa) gpa.deinit();
+    const alloc = gpa.allocator();
     var maybe_file_path: ?[]const u8 = null;
     defer if (maybe_file_path) |path| alloc.free(path);

src/core/mod.zig+32-4

...	@@ -29,6 +29,9 @@ pub const Report = @import("Report.zig");	...	@@ -29,6 +29,9 @@ pub const Report = @import("Report.zig");
29	/// Semantic Analysis visits a `Teg` declaration and produces `Air`	29	/// Semantic Analysis visits a `Teg` declaration and produces `Air`
30	pub const Sema = @import("Sema.zig");	30	pub const Sema = @import("Sema.zig");
31		31
		32	pub const Stack = @import("stack.zig").Stack;
		33	pub const U32Stack = Stack(u32);
		34
32	/// Untyped Intermediate Representation. Flat instruction list	35	/// Untyped Intermediate Representation. Flat instruction list
33	pub const Teg = @import("Teg.zig");	36	pub const Teg = @import("Teg.zig");
34		37
...	@@ -40,8 +43,6 @@ pub const Transform = @import("Transform.zig");	...	@@ -40,8 +43,6 @@ pub const Transform = @import("Transform.zig");
40		43
41	pub const unicode_props = @import("unicode_props.zig");	44	pub const unicode_props = @import("unicode_props.zig");
42		45
43	pub const util = @import("util.zig");
44
45	// sort-lines: end	46	// sort-lines: end
46		47
47	// The rest of this file is utility functions, which are not specific to any of	48	// The rest of this file is utility functions, which are not specific to any of
...	@@ -64,8 +65,35 @@ pub inline fn assertFailed(cond: bool) bool {	...	@@ -64,8 +65,35 @@ pub inline fn assertFailed(cond: bool) bool {
64	}	65	}
65	}	66	}
66		67
67	pub const detectTTYFromWriter = util.detectTTYFromWriter;	68	/// If `value` can be cast to `i32`
68	pub const Ordinal = util.Ordinal;	69	pub fn inInt32Range(value: anytype) bool {
		70	return switch (@typeInfo(@TypeOf(value))) {
		71	.Int,
		72	.ComptimeInt,
		73	=> value >= std.math.minInt(i32) and
		74	value <= std.math.maxInt(i32),
		75
		76	.Float,
		77	.ComptimeFloat,
		78	=> std.math.isFinite(value) and
		79	value >= std.math.minInt(i32) and
		80	value <= std.math.maxInt(i32) and
		81	(@rem(value, 1) == 0),
		82
		83	else => @compileError(unreachable),
		84	};
		85	}
		86
		87	pub fn detectTTYFromWriter(writer: std.io.AnyWriter) std.io.tty.Config {
		88	const fileWriteFn = comptime (std.fs.File{ .handle = undefined })
		89	.writer().any().writeFn;
		90
		91	if (writer.writeFn == fileWriteFn) {
		92	const file: *const std.fs.File = @alignCast(@ptrCast(writer.context));
		93	return std.io.tty.detectConfig(file.*);
		94	}
		95	return .no_color;
		96	}
69		97
70	const std = @import("std");	98	const std = @import("std");
71	const assert = std.debug.assert;	99	const assert = std.debug.assert;

src/core/stack.zig created+156

...	@@ -0,0 +1,156 @@
1	//! This is an abstraction on top of ArrayListUnmanaged primarily intended for
2	//! unbounded temporary memory. Allocations must be freed last-in-first-out, but
3	//! the ability for memory reuse is high.
4	//!
5	//! This structure allows for a mark -> append -> gather pattern, which is
6	//! typically used with a block expression and it's contents, but it also allows
7	//! arbitrary temporary allocations that re-use this memory space.
8	pub fn Stack(comptime Base: type) type {
9	return struct {
10	const Self = @This();
11
12	list: std.ArrayListUnmanaged(Base) = .{},
13
14	pub const Mark = struct {
15	stack: *Self,
16	index: usize,
17
18	pub fn deinit(m: Mark) void {
19	if (std.debug.runtime_safety)
20	@memset(m.slice(Base), undefined);
21	m.stack.list.shrinkRetainingCapacity(m.index);
22	}
23
24	pub fn len(m: Mark) usize {
25	return m.stack.list.items.len - m.index;
26	}
27
28	pub fn slice(m: Mark, comptime T: type) []T {
29	comptime assert(@alignOf(T) == @alignOf(Base));
30	comptime assert(@sizeOf(T) == @sizeOf(Base));
31	return @ptrCast(m.stack.list.items[m.index..]);
32	}
33	};
34
35	/// Mark this point of the stack, where all future appends are owned by
36	/// the mark. You can then use `slice()` to collect the appends.
37	pub fn mark(stack: *Self) Mark {
38	return .{
39	.stack = stack,
40	.index = stack.list.items.len,
41	};
42	}
43
44	pub fn add(stack: *Self, allocator: Allocator, comptime T: type, item: T) !void {
45	comptime assert(@alignOf(T) == @alignOf(Base));
46	comptime assert(@sizeOf(T) == @sizeOf(Base));
47	try stack.list.append(allocator, @as(const Base, @ptrCast(&item)).);
48	}
49
50	pub fn Reserve(comptime T: type) type {
51	assert(@alignOf(T) == @alignOf(Base));
52	assert(@sizeOf(T) == @sizeOf(Base));
53
54	return struct {
55	stack: *Self,
56	start: usize,
57	len: usize,
58
59	pub fn deinit(r: @This()) void {
60	const from = r.stack.list.items[r.start + r.len ..];
61	const dest = r.stack.list.items[r.start..][0..from.len];
62	std.mem.copyForwards(u32, dest, from);
63	r.stack.list.shrinkRetainingCapacity(r.start + from.len);
64	}
65
66	pub fn at(r: @This(), i: usize) *T {
67	assert(i < r.len);
68	return @ptrCast(&r.stack.list.items[r.start + i]);
69	}
70
71	pub fn slice(r: @This()) []T {
72	return @ptrCast(r.stack.list.items[r.start..][0..r.len]);
73	}
74
75	pub fn sliceReinterpret(r: @This(), comptime Reinterpret: type) []Reinterpret {
76	assert(@alignOf(Reinterpret) == @alignOf(Base));
77	assert(@sizeOf(Reinterpret) == @sizeOf(Base));
78	return @ptrCast(r.slice());
79	}
80	};
81	}
82
83	pub fn reserve(
84	stack: *Self,
85	allocator: Allocator,
86	comptime T: type,
87	len: usize,
88	) !Reserve(T) {
89	try stack.list.ensureUnusedCapacity(allocator, len);
90	const start = stack.list.items.len;
91	stack.list.items.len += len;
92	return .{ .stack = stack, .start = start, .len = len };
93	}
94
95	pub fn ReserveMulti(comptime types: anytype) type {
96	const Types = @TypeOf(types);
97	const fields = std.meta.fields(Types);
98	const FieldEnum = std.meta.FieldEnum(Types);
99
100	return struct {
101	stack: *Self,
102	starts: [fields.len]usize,
103	lengths: [fields.len]usize,
104
105	fn Type(comptime field: FieldEnum) type {
106	return @field(types, @tagName(field));
107	}
108
109	pub fn slice(r: @This(), comptime field: FieldEnum) []Type(field) {
110	const f = comptime std.meta.fieldIndex(Types, @tagName(field)).?;
111	return @ptrCast(r.stack.list.items[r.starts[f]..][0..r.lengths[f]]);
112	}
113
114	pub fn at(r: @This(), comptime field: FieldEnum, i: usize) *Type(field) {
115	const f = comptime std.meta.fieldIndex(Types, @tagName(field)).?;
116	assert(i < r.lengths[f]);
117	return @ptrCast(&r.stack.list.items[r.starts[f] + i]);
118	}
119
120	pub fn deinit(r: @This()) void {
121	const start = r.starts[0];
122	const len = r.starts[fields.len - 1] - r.starts[0] + r.lengths[fields.len - 1];
123
124	const from = r.stack.list.items[start + len ..];
125	const dest = r.stack.list.items[start..][0..from.len];
126	std.mem.copyForwards(u32, dest, from);
127	r.stack.list.shrinkRetainingCapacity(start + from.len);
128	}
129	};
130	}
131
132	/// Same as `reserve` but able to group multiple allocations of different types
133	/// into a singular push and pop.
134	pub fn reserveMulti(
135	stack: *Self,
136	allocator: Allocator,
137	comptime types: anytype,
138	lengths: [std.meta.fields(@TypeOf(types)).len]usize,
139	) !ReserveMulti(types) {
140	var all_lengths: usize = 0;
141	var starts: [std.meta.fields(@TypeOf(types)).len]usize = undefined;
142	const start = stack.list.items.len;
143	inline for (lengths, &starts) \|len, *slice_start\| {
144	slice_start.* = start + all_lengths;
145	all_lengths += len;
146	}
147	try stack.list.ensureUnusedCapacity(allocator, all_lengths);
148	stack.list.items.len += all_lengths;
149	return .{ .stack = stack, .starts = starts, .lengths = lengths };
150	}
151	};
152	}
153
154	const std = @import("std");
155	const assert = std.debug.assert;
156	const Allocator = std.mem.Allocator;

src/core/util.zig deleted-49

...	@@ -1,49 +0,0 @@
1	// TODO: move all decls in this file into mod.zig
2
3	pub fn detectTTYFromWriter(writer: anytype) std.io.tty.Config {
4	if (@hasField(@TypeOf(writer), "unbuffered_writer")) {
5	return detectTTYFromWriter(writer.unbuffered_writer);
6	}
7	if (@TypeOf(writer) == std.fs.File.Writer) {
8	return std.io.tty.detectConfig(writer.context);
9	}
10	if (@TypeOf(writer) == std.io.AnyWriter) {
11	const fileWriteFn = comptime (std.fs.File{ .handle = undefined })
12	.writer().any().writeFn;
13	if (writer.writeFn == fileWriteFn) {
14	const file: *const std.fs.File = @alignCast(@ptrCast(writer.context));
15	return std.io.tty.detectConfig(file.*);
16	}
17	}
18	return .no_color;
19	}
20
21	pub fn Ordinal(Int: type) type {
22	comptime assert(@typeInfo(Int).Int.signedness == .unsigned);
23	return enum(Int) {
24	start = 0,
25	_,
26
27	pub fn fromZeroBased(int: Int) @This() {
28	assert(int != std.math.maxInt(Int));
29	return @enumFromInt(int);
30	}
31	pub fn fromOneBased(int: Int) @This() {
32	assert(int > 0);
33	return @enumFromInt(int - 1);
34	}
35	pub fn zeroBased(ord: @This()) Int {
36	return @intFromEnum(ord);
37	}
38	pub fn oneBased(ord: @This()) Int {
39	return @intFromEnum(ord) + 1;
40	}
41
42	pub fn add(ord: @This(), inc: Int) @This() {
43	return fromZeroBased(ord.zeroBased() + inc);
44	}
45	};
46	}
47
48	const std = @import("std");
49	const assert = std.debug.assert;

author	dave caruso <me@paperdave.net> 2024-07-23 04:35:26-07:00
committer	GitHub <noreply@github.com> 2024-07-23 04:35:26-07:00
log	7514b71286a8659c2917b78acf7f36b5da7e9657
tree	8499f019e6984acda8b117f2074b2a0697316154
parent	70f503e63e255d19e78dac36a1742e18562291c7
signature	Signed by PGP key B5690EEEBB952194

Implement Arrays (#67)