altagos.dev
A pretty printer for zig
zig
improve consistency
+32
-26
+18
-18
example/main.zig
+18
-18
example/main.zig
···
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const pretty_mod = @import("pretty");
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const pretty = pretty_mod.pretty;
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const Pretty = pretty_mod.PrettyWithOptions;
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const prettyO = pretty_mod.prettyO;
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pub const pretty_options = pretty_mod.Options{
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.always_show_type_names = true,
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print("Pretty null - {f}\n", .{pretty(null)});
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print("\nBooleans\n", .{});
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print("Boolean true - {f}\n", .{pretty(true)});
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print("Boolean false - {f}\n", .{pretty(false)});
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print("Pretty bool true - {f}\n", .{pretty(true)});
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print("Pretty bool false - {f}\n", .{pretty(false)});
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print(
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"Boolean true always with type name - {f}\n",
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.{Pretty(bool, .{
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"Pretty bool true always with type name - {f}\n",
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.{prettyO(true, .{
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.always_show_type_names = true,
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.theme = .{ .type_value_sep = ": " },
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}).init(true)},
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})},
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);
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print("\nUnsigned Integers\n", .{});
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print("Pretty simple struct - {f}\n", .{pretty(person)});
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print(
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"Pretty simple inline struct - {f}\n",
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.{Pretty(Person, .{ .inline_structs = true }).init(person)},
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.{prettyO(person, .{ .inline_structs = true })},
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);
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print("Pretty nested struct - {f}\n", .{pretty(nested)});
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print("\nArrays\n", .{});
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print("Array of floats - {f}\n", .{pretty([_]f32{ 0.1, 0.2, 0.3 })});
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print("Pretty array of floats - {f}\n", .{pretty([_]f32{ 0.1, 0.2, 0.3 })});
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print(
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"Array of floats inline - {f}\n",
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.{Pretty([3]f32, .{ .inline_arrays = true }).init([_]f32{ 0.1, 0.2, 0.3 })},
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"Pretty array of floats inline - {f}\n",
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.{prettyO([3]f32{ 0.1, 0.2, 0.3 }, .{ .inline_arrays = true })},
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);
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print(
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"Array of floats inline with indices - {f}\n",
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.{Pretty([3]f32, .{
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"Pretty array of floats inline with indices - {f}\n",
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.{prettyO([3]f32{ 0.1, 0.2, 0.3 }, .{
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.inline_arrays = true,
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.always_show_index = true,
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}).init([_]f32{ 0.1, 0.2, 0.3 })},
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})},
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);
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const eu_error: Result = error.OutOfMemory;
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const eu_ok: Result = .world;
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print("\nError types\n", .{});
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print("Error set - {f}\n", .{pretty(ErrorSet.OutOfMemory)});
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print("Error union error - {f}\n", .{pretty(eu_error)});
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print("Error union ok - {f}\n", .{pretty(eu_ok)});
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print("Pretty error set - {f}\n", .{pretty(ErrorSet.OutOfMemory)});
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print("Pretty error union error - {f}\n", .{pretty(eu_error)});
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print("Pretty error union ok - {f}\n", .{pretty(eu_ok)});
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print("\nFunctions\n", .{});
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print("Function Pretty - {f}\n", .{pretty(Pretty)});
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print("Function main - {f}\n", .{pretty(main)});
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print("Pretty function pretty - {f}\n", .{pretty(pretty)});
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print("Pretty function main - {f}\n", .{pretty(main)});
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}
+14
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pretty.zig
+14
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pretty.zig
···
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const Io = std.Io;
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const Type = std.builtin.Type;
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pub fn pretty(value: anytype) Pretty(@TypeOf(value)) {
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return Pretty(@TypeOf(value)).init(value);
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}
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pub fn prettyO(value: anytype, comptime opts: Options) PrettyWithOptions(@TypeOf(value), opts) {
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return PrettyWithOptions(@TypeOf(value), opts).init(value);
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}
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const root = @import("root");
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const default_options: Options = if (@hasDecl(root, "pretty_options"))
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root.pretty_options
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else
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Options{};
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pub const Options = struct {
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indent_width: comptime_int = 2,
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}
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};
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const default_options: Options = if (@hasDecl(root, "pretty_options")) root.pretty_options else .{};
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pub fn pretty(value: anytype) Pretty(@TypeOf(value)) {
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return Pretty(@TypeOf(value)).init(value);
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}
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pub fn Pretty(comptime T: type) type {
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return PrettyWithOptions(T, default_options);
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}
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=> formatValue(ctx, run, value),
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.optional => |opt| formatOptional(opt.child, ctx, run, value),
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.@"struct" => |st| formatStruct(T, st, ctx, run, value),
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.@"struct" => |st| formatStruct(T, ctx, st, run, value),
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.error_set => formatErrorSet(ctx, run, value),
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.error_union => formatErrorUnion(ctx, run, value),
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inline fn formatStruct(
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comptime T: type,
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comptime st: Type.Struct,
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comptime ctx: Context,
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comptime st: Type.Struct,
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run: *Runtime,
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value: T,
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) !void {