Implement array mapping

Close #15

README.md

@@ -24,11 +24,12 @@ This is a top-down LL parser that parses directly into Zig structs.
   * [x] Mapping to structs
   * [x] Mapping to enums
   * [x] Mapping to slices
-  * [ ] Mapping to arrays
+  * [x] Mapping to arrays
   * [x] Mapping to pointers
   * [x] Mapping to integer and floats with lower bit number than defined by TOML, i.e. `i16`, `f32`.
   * [x] Mapping to optional fields
   * [x] Mapping to HashMaps
+* [ ] Serialization
 
 ## Example
 See [`example1.zig`](./examples/example1.zig) for the complete code that parses [`example.toml`](./examples/example1.toml)

src/struct_mapping.zig

@@ -154,6 +154,17 @@ fn setValue(ctx: *Context, comptime T: type, dest: *T, value: *const Value) !voi
                 },
             }
         },
+        .array => |tinfo| {
+            switch (value.*) {
+                .array => |b| {
+                    if (b.items.len != tinfo.len) return error.InvalidArrayLength;
+                    for (dest, 0..b.items.len) |*x, ix| {
+                        try setValue(ctx, tinfo.child, x, &b.items[ix]);
+                    }
+                },
+                else => return error.InvalidValueType,
+            }
+        },
         .@"struct" => {
             switch (value.*) {
                 .table => |tab| {

src/tests.zig

@@ -49,6 +49,7 @@ test "parse into struct" {
         b1: bool,
         cc: []i64,
         dd: []const []const u8,
+        d2: [3][]const u8,
         t1: Tt,
         t2: Tt,
         t3: Tt,
@@ -106,6 +107,10 @@ test "parse into struct" {
     try testing.expect(std.mem.eql(u8, aa.dd[0], "aa"));
     try testing.expect(std.mem.eql(u8, aa.dd[1], "bb"));
 
+    try testing.expectEqualSlices(u8, aa.d2[0], "a1");
+    try testing.expectEqualSlices(u8, aa.d2[1], "a2");
+    try testing.expectEqualSlices(u8, aa.d2[2], "a3");
+
     try testing.expect(aa.t1.aa == 3);
     try testing.expect(aa.t1.bb == 4);
     try testing.expect(aa.t2.aa == 5);

test/doc1.toml.txt

@@ -4,6 +4,7 @@ aa2 = 50
   cc = [3, 15,
   20,]
 dd = ["aa", "bb"]
+d2 = ["a1", "a2", "a3"]
 b1 = true
 f1 = 125.55
 f1a = 99.5