feat: add zig bindings

bindings/zig/root.zig

@@ -0,0 +1,5 @@
+extern fn tree_sitter_emm() callconv(.c) *const anyopaque;
+
+pub fn language() *const anyopaque {
+    return tree_sitter_emm();
+}

bindings/zig/test.zig

@@ -0,0 +1,17 @@
+const testing = @import("std").testing;
+
+const ts = @import("tree_sitter");
+const root = @import("tree_sitter_emm");
+const Language = ts.Language;
+const Parser = ts.Parser;
+
+test "can load grammar" {
+    const parser = Parser.create();
+    defer parser.destroy();
+
+    const lang: *const ts.Language = @ptrCast(root.language());
+    defer lang.destroy();
+
+    try testing.expectEqual(void{}, parser.setLanguage(lang));
+    try testing.expectEqual(lang, parser.getLanguage());
+}

build.zig

@@ -0,0 +1,85 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) !void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const shared = b.option(bool, "build-shared", "Build a shared library") orelse true;
+    const reuse_alloc = b.option(bool, "reuse-allocator", "Reuse the library allocator") orelse false;
+
+    const lib = b.addLibrary(.{
+        .name = "tree-sitter-emm",
+        .linkage = if (shared) .dynamic else .static,
+        .root_module = b.createModule(.{
+            .target = target,
+            .optimize = optimize,
+            .link_libc = true,
+            .pic = if (shared) true else null,
+        }),
+    });
+
+    lib.addCSourceFile(.{
+        .file = b.path("src/parser.c"),
+        .flags = &.{"-std=c11"},
+    });
+    if (fileExists(b, "src/scanner.c")) {
+        lib.addCSourceFile(.{
+            .file = b.path("src/scanner.c"),
+            .flags = &.{"-std=c11"},
+        });
+    }
+
+    if (reuse_alloc) {
+        lib.root_module.addCMacro("TREE_SITTER_REUSE_ALLOCATOR", "");
+    }
+    if (optimize == .Debug) {
+        lib.root_module.addCMacro("TREE_SITTER_DEBUG", "");
+    }
+
+    lib.addIncludePath(b.path("src"));
+
+    b.installArtifact(lib);
+    b.installFile("src/node-types.json", "node-types.json");
+
+    if (fileExists(b, "queries")) {
+        b.installDirectory(.{
+            .source_dir = b.path("queries"),
+            .install_dir = .prefix,
+            .install_subdir = "queries",
+            .include_extensions = &.{"scm"},
+        });
+    }
+
+    const module = b.addModule("tree_sitter_emm", .{
+        .root_source_file = b.path("bindings/zig/root.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+    module.linkLibrary(lib);
+
+    const tree_sitter = b.dependency("tree_sitter", .{
+        .target = target,
+        .optimize = optimize,
+    });
+    module.addImport("tree_sitter", tree_sitter.module("tree_sitter"));
+
+    const tests = b.addTest(.{
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("bindings/zig/test.zig"),
+            .target = target,
+            .optimize = optimize,
+        }),
+    });
+    tests.root_module.addImport("tree_sitter", tree_sitter.module("tree_sitter"));
+    tests.root_module.addImport("tree_sitter_emm", module);
+
+    const run_tests = b.addRunArtifact(tests);
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&run_tests.step);
+}
+
+inline fn fileExists(b: *std.Build, filename: []const u8) bool {
+    const dir = b.build_root.handle;
+    dir.access(filename, .{}) catch return false;
+    return true;
+}

build.zig.zon

@@ -0,0 +1,13 @@
+.{
+    .name = .tree_sitter_emm,
+    .version = "0.0.1",
+    .dependencies = .{
+        .tree_sitter = .{
+            .url = "git+https://github.com/tree-sitter/zig-tree-sitter#4c5d3a45a9828b8fddd3d59132c4346182fc23b7",
+            .hash = "tree_sitter-0.25.0-8heIf4KZAQCmEhQwLPPtKBsU3BBkohvUJpfDXc7vmDM7",
+        },
+    },
+    .minimum_zig_version = "0.16.0-dev.732+2f3234c76",
+    .paths = .{""},
+    .fingerprint = 0x2013c1379932809e,
+}