idk

language.zig

@@ -7,13 +7,13 @@ const StringPool = @import("strings.zig");
 const StringIndex = StringPool.StringIndex;
 const assert = std.debug.assert;
 
-// data structures
-const Object = std.StringArrayHashMapUnmanaged(JsonInput);
-
 const Self = @This();
 
 pub const Error = enum {
     TrailingComma,
+    MissingKey,
+    MissingValue,
+    UnexpectedToken,
 };
 
 pub const JsonType = enum {
@@ -35,12 +35,16 @@ pub const JsonValue = union(JsonType) {
 };
 
 pub const JsonInput = union(JsonType) {
+
+    // data structures
+    const Object = std.StringArrayHashMapUnmanaged(JsonInput);
+
     null: void,
     bool: bool,
     number: f64,
     string: []const u8,
     array: []JsonInput,
-    object: std.StringArrayHashMapUnmanaged(JsonInput),
+    object: Object,
 
     pub fn deinit(self: JsonInput, allocator: mem.Allocator) void {
         switch (self) {
@@ -218,12 +222,31 @@ fn getObject(self: *Self, allocator: mem.Allocator, index: usize) !struct {
     const keys = try allocator.alloc(StringIndex, entry.object.len);
     const values = try allocator.alloc(usize, entry.object.len);
 
-    for (0..entry.object.len) |i| {
-        const slice = StringIndex.slice(@enumFromInt(pidx), &self.property_index);
-        keys[i] = @enumFromInt(pidx);
-        values[i] = vidx;
-        pidx += slice.len + 1;
-        vidx += 1;
+    var i: usize = 0;
+
+    flag: switch (self.index.get(vidx)) {
+        .array => {
+            vidx += 1;
+            continue :flag self.index.get(vidx);
+        },
+        .object => |obj| {
+            var iter = StringIndex.iterator(
+                @enumFromInt(obj.property_idx),
+                self.property_index.string_bytes.items,
+            );
+            const slice = iter.next();
+            keys[i] = @enumFromInt(obj.property_idx);
+            values[i] = vidx;
+            i += 1;
+            pidx += slice.len + 1;
+            vidx += 1;
+            continue :flag self.index.get(vidx);
+        },
+        else => {
+            // pidx += slice.len + 1;
+            vidx += 1;
+            continue :flag self.index.get(vidx);
+        },
     }
 
     return .{ keys, values };
@@ -341,7 +364,7 @@ fn getValue(
             return .{ .array = out[0..arr.len] };
         },
         .object => |obj| {
-            var map: std.StringArrayHashMapUnmanaged(JsonInput) = .empty;
+            var map: JsonInput.Object = .empty;
             var p = obj.property_idx;
             var v = obj.value_idx;
             for (0..obj.len) |_| {
@@ -369,8 +392,12 @@ test getValue {
 
     const json =
         \\  {
-        \\    "array":[{"cute":true},
-        \\             {"funny":false}]
+        \\      "cute": true,
+        \\      "metadata": {
+        \\          "post": [1,2,3],
+        \\          "a": 2
+        \\      },
+        \\      "b": 3
         \\  }
     ;
 

strings.zig

@@ -1,6 +1,5 @@
 /// credits to Andrew Kelley
 /// strings.zig
-
 const std = @import("std");
 const mem = std.mem;
 const assert = std.debug.assert;
@@ -26,9 +25,9 @@ pub fn deinit(self: *Self, allocator: Allocator) void {
 pub const StringIndex = enum(u32) {
     _,
 
-    const Table = std.HashMapUnmanaged(StringIndex, void, TableContext, max_load_percent);
+    pub const Table = std.HashMapUnmanaged(StringIndex, void, TableContext, max_load_percent);
 
-    const TableContext = struct {
+    pub const TableContext = struct {
         bytes: []const u8,
 
         pub fn eql(_: @This(), a: StringIndex, b: StringIndex) bool {
@@ -40,7 +39,7 @@ pub const StringIndex = enum(u32) {
         }
     };
 
-    const TableIndexAdapter = struct {
+    pub const TableIndexAdapter = struct {
         bytes: []const u8,
 
         pub fn eql(ctx: @This(), a: []const u8, b: StringIndex) bool {
@@ -57,6 +56,34 @@ pub const StringIndex = enum(u32) {
         const start_slice = state.string_bytes.items[@intFromEnum(index)..];
         return start_slice[0..mem.indexOfScalar(u8, start_slice, 0).? :0];
     }
+
+    pub fn iterator(start: StringIndex, bytes: []const u8) Iterator {
+        return .{
+            .bytes = bytes,
+            .pos = @intFromEnum(start),
+        };
+    }
+
+    pub const Iterator = struct {
+        bytes: []const u8,
+        pos: usize = 0,
+
+        pub fn next(self: *Iterator) ?[:0]const u8 {
+            if (self.pos >= self.bytes.len) return null;
+
+            // Find the next null terminator starting from current position
+            const end_pos = mem.indexOfScalarPos(u8, self.bytes, self.pos, 0) orelse {
+                // No null found: return remaining bytes (invalid, but handle gracefully)
+                const s = self.bytes[self.pos..];
+                self.pos = self.bytes.len;
+                return s;
+            };
+
+            const s = self.bytes[self.pos..end_pos :0];
+            self.pos = end_pos + 1; // Skip the null terminator
+            return s;
+        }
+    };
 };
 
 pub fn add(state: *Self, allocator: Allocator, bytes: []const u8) !StringIndex {

tokenizer.zig

@@ -8,22 +8,10 @@ pub const Error = error{
     OutOfMemory,
     /// eg: bad escaping
     UnexpectedCharacter,
-    /// eg: got the wrong token type, check TokenType
-    UnexpectedToken,
     /// eg: std.fmt.parseFloat failed
     BadNumber,
     /// fba error
     BufferTooSmall,
-    /// eg: missing comma
-    CommaExpected,
-    /// eg: missing colon
-    ColonExpected,
-    /// eg: missing object key
-    KeyExpected,
-    /// eg: error while writing
-    PrintError,
-    /// eg: trailing comma in object
-    TrailingComma,
 };
 
 pub const TokenType = enum(u8) {
@@ -269,9 +257,8 @@ pub fn nextIdentifier(self: *Self) Error!Token {
     var buffer = try self.allocator.alloc(u8, 0x100);
     defer self.allocator.free(buffer);
 
-    self.matchCharPredicate(std.ascii.isAlphabetic) orelse {
-        return error.UnexpectedToken;
-    };
+    self.matchCharPredicate(std.ascii.isAlphabetic) orelse
+        return error.InvalidSyntax;
 
     buffer[0] = self.lastChar();
 
@@ -380,9 +367,7 @@ pub fn nextString(self: *Self) Error!Token {
 
     self.skipWhitespace();
 
-    self.matchChar('"') orelse {
-        return error.UnexpectedToken;
-    };
+    self.matchChar('"') orelse unreachable;
 
     var buffer: std.ArrayList(u8) = .init(self.allocator);