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linker.zig
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// Most of this file should eventually be replaced with `bundle_v2.zig` or
// `bundle_v2` should be split into several files.
const bun = @import("root").bun;
const string = bun.string;
const Output = bun.Output;
const Global = bun.Global;
const Environment = bun.Environment;
const strings = bun.strings;
const MutableString = bun.MutableString;
const stringZ = bun.stringZ;
const default_allocator = bun.default_allocator;
const FileDescriptorType = bun.FileDescriptor;
const C = bun.C;
const Ref = @import("./ast/base.zig").Ref;
const std = @import("std");
const lex = bun.js_lexer;
const logger = @import("root").bun.logger;
const Options = @import("options.zig");
const js_parser = bun.js_parser;
const json_parser = bun.JSON;
const js_printer = bun.js_printer;
const js_ast = bun.JSAst;
const Fs = @import("fs.zig");
const Api = @import("api/schema.zig").Api;
const Resolver = @import("./resolver/resolver.zig");
const sync = @import("sync.zig");
const _import_record = @import("./import_record.zig");
const ImportRecord = _import_record.ImportRecord;
const ImportKind = _import_record.ImportKind;
const allocators = @import("./allocators.zig");
const MimeType = @import("./http/mime_type.zig");
const resolve_path = @import("./resolver/resolve_path.zig");
const _bundler = bun.bundler;
const Bundler = _bundler.Bundler;
const ResolveQueue = _bundler.ResolveQueue;
const ResolverType = Resolver.Resolver;
const ESModule = @import("./resolver/package_json.zig").ESModule;
const Runtime = @import("./runtime.zig").Runtime;
const URL = @import("url.zig").URL;
const JSC = @import("root").bun.JSC;
const PluginRunner = bun.bundler.PluginRunner;
pub const CSSResolveError = error{ResolveMessage};
pub const OnImportCallback = *const fn (resolve_result: *const Resolver.Result, import_record: *ImportRecord, origin: URL) void;
pub const Linker = struct {
const HashedFileNameMap = std.AutoHashMap(u64, string);
const ThisLinker = @This();
allocator: std.mem.Allocator,
options: *Options.BundleOptions,
fs: *Fs.FileSystem,
log: *logger.Log,
resolve_queue: *ResolveQueue,
resolver: *ResolverType,
resolve_results: *_bundler.ResolveResults,
any_needs_runtime: bool = false,
runtime_import_record: ?ImportRecord = null,
hashed_filenames: HashedFileNameMap,
import_counter: usize = 0,
tagged_resolutions: TaggedResolution = TaggedResolution{},
plugin_runner: ?*PluginRunner = null,
onImportCSS: ?OnImportCallback = null,
pub const runtime_source_path = "bun:wrap";
pub const TaggedResolution = struct {
react_refresh: ?Resolver.Result = null,
// These tags cannot safely be used
// Projects may use different JSX runtimes across folders
// jsx_import: ?Resolver.Result = null,
// jsx_classic: ?Resolver.Result = null,
};
pub fn init(
allocator: std.mem.Allocator,
log: *logger.Log,
resolve_queue: *ResolveQueue,
options: *Options.BundleOptions,
resolver: *ResolverType,
resolve_results: *_bundler.ResolveResults,
fs: *Fs.FileSystem,
) ThisLinker {
relative_paths_list = ImportPathsList.init(allocator);
return ThisLinker{
.allocator = allocator,
.options = options,
.fs = fs,
.log = log,
.resolve_queue = resolve_queue,
.resolver = resolver,
.resolve_results = resolve_results,
.hashed_filenames = HashedFileNameMap.init(allocator),
};
}
pub fn getModKey(
this: *ThisLinker,
file_path: Fs.Path,
fd: ?FileDescriptorType,
) !Fs.FileSystem.RealFS.ModKey {
var file: std.fs.File = if (fd) |_fd| std.fs.File{ .handle = bun.fdcast(_fd) } else try std.fs.openFileAbsolute(file_path.text, .{ .mode = .read_only });
Fs.FileSystem.setMaxFd(file.handle);
const modkey = try Fs.FileSystem.RealFS.ModKey.generate(&this.fs.fs, file_path.text, file);
if (fd == null)
file.close();
return modkey;
}
pub fn getHashedFilename(
this: *ThisLinker,
file_path: Fs.Path,
fd: ?FileDescriptorType,
) !string {
if (Bundler.isCacheEnabled) {
const hashed = bun.hash(file_path.text);
const hashed_result = try this.hashed_filenames.getOrPut(hashed);
if (hashed_result.found_existing) {
return hashed_result.value_ptr.*;
}
}
const modkey = try this.getModKey(file_path, fd);
const hash_name = modkey.hashName(file_path.text);
if (Bundler.isCacheEnabled) {
const hashed = bun.hash(file_path.text);
try this.hashed_filenames.put(hashed, try this.allocator.dupe(u8, hash_name));
}
return hash_name;
}
pub fn resolveCSS(
this: anytype,
path: Fs.Path,
url: string,
range: logger.Range,
kind: ImportKind,
origin: URL,
comptime import_path_format: Options.BundleOptions.ImportPathFormat,
comptime resolve_only: bool,
) !string {
const dir = path.name.dirWithTrailingSlash();
if (strings.hasPrefix(url, "/")) {
if (comptime import_path_format == .absolute_url) {
return try origin.joinAlloc(this.allocator, "", url, "", "", url);
}
return url;
}
var resolve_result = try this.resolver.resolve(dir, url, kind);
if (resolve_result.is_external) {
return url;
}
if (resolve_only) {
return resolve_result.path_pair.primary.text;
}
var import_record = ImportRecord{ .range = range, .path = resolve_result.path_pair.primary, .kind = kind };
const loader = this.options.loaders.get(resolve_result.path_pair.primary.name.ext) orelse .file;
this.processImportRecord(loader, dir, &resolve_result, &import_record, origin, import_path_format) catch unreachable;
return import_record.path.text;
}
pub inline fn nodeModuleBundleImportPath(this: *const ThisLinker, origin: URL) string {
if (this.options.target.isBun()) return "/node_modules.server.bun";
return std.fmt.allocPrint(this.allocator, "{s}://{}{s}", .{ origin.displayProtocol(), origin.displayHost(), this.options.node_modules_bundle.?.bundle.import_from_name }) catch unreachable;
}
// This modifies the Ast in-place!
// But more importantly, this does the following:
// - Wrap CommonJS files
pub fn link(
linker: *ThisLinker,
file_path: Fs.Path,
result: *_bundler.ParseResult,
origin: URL,
comptime import_path_format: Options.BundleOptions.ImportPathFormat,
comptime ignore_runtime: bool,
comptime is_bun: bool,
) !void {
const source_dir = file_path.sourceDir();
var externals = std.ArrayList(u32).init(linker.allocator);
var had_resolve_errors = false;
const is_deferred = result.pending_imports.len > 0;
const import_records = result.ast.import_records.listManaged(linker.allocator);
defer {
result.ast.import_records = ImportRecord.List.fromList(import_records);
}
// Step 1. Resolve imports & requires
switch (result.loader) {
.jsx, .js, .ts, .tsx => {
for (import_records.items, 0..) |*import_record, record_i| {
if (import_record.is_unused or
(is_bun and is_deferred and !result.isPendingImport(@intCast(record_i)))) continue;
const record_index = record_i;
if (comptime !ignore_runtime) {
if (strings.eqlComptime(import_record.path.namespace, "runtime")) {
if (import_path_format == .absolute_url) {
import_record.path = Fs.Path.initWithNamespace(try origin.joinAlloc(linker.allocator, "", "", "bun:wrap", "", ""), "bun");
} else {
import_record.path = try linker.generateImportPath(
source_dir,
Linker.runtime_source_path,
false,
"bun",
origin,
import_path_format,
);
}
result.ast.runtime_import_record_id = @intCast(record_index);
result.ast.needs_runtime = true;
continue;
}
}
if (comptime is_bun) {
if (JSC.HardcodedModule.Aliases.get(import_record.path.text, linker.options.target)) |replacement| {
import_record.path.text = replacement.path;
import_record.tag = replacement.tag;
import_record.is_external_without_side_effects = true;
if (replacement.tag != .none) {
externals.append(@intCast(record_index)) catch unreachable;
continue;
}
}
if (strings.startsWith(import_record.path.text, "node:")) {
// if a module is not found here, it is not found at all
// so we can just disable it
had_resolve_errors = try whenModuleNotFound(linker, import_record, result, is_bun);
if (had_resolve_errors) return error.ResolveMessage;
continue;
}
// if (strings.eqlComptime(import_record.path.text, "process")) {
// import_record.path.text = "node:process";
// externals.append(record_index) catch unreachable;
// continue;
// }
// TODO: this is technical debt
if (linker.options.rewrite_jest_for_tests) {
if (strings.eqlComptime(
import_record.path.text,
"@jest/globals",
) or strings.eqlComptime(
import_record.path.text,
"vitest",
)) {
import_record.path.namespace = "bun";
import_record.tag = .bun_test;
import_record.path.text = "test";
continue;
}
}
if (strings.hasPrefixComptime(import_record.path.text, "bun:")) {
import_record.path = Fs.Path.init(import_record.path.text["bun:".len..]);
import_record.path.namespace = "bun";
if (strings.eqlComptime(import_record.path.text, "test")) {
import_record.tag = .bun_test;
}
// don't link bun
continue;
}
// Resolve dynamic imports lazily for perf
if (import_record.kind == .dynamic) {
continue;
}
}
if (linker.plugin_runner) |runner| {
if (PluginRunner.couldBePlugin(import_record.path.text)) {
if (runner.onResolve(
import_record.path.text,
file_path.text,
linker.log,
import_record.range.loc,
if (is_bun)
JSC.JSGlobalObject.BunPluginTarget.bun
else if (linker.options.target == .browser)
JSC.JSGlobalObject.BunPluginTarget.browser
else
JSC.JSGlobalObject.BunPluginTarget.node,
)) |path| {
import_record.path = try linker.generateImportPath(
source_dir,
path.text,
false,
path.namespace,
origin,
import_path_format,
);
import_record.print_namespace_in_path = true;
continue;
}
}
}
// var resolved_import_: anyerror!Resolver.Result = brk: {
// switch (import_record.tag) {
// else => {},
// // for fast refresh, attempt to read the version directly from the bundle instead of resolving it
// .react_refresh => {
// if (linker.options.jsx.use_embedded_refresh_runtime) {
// import_record.path = Fs.Path.initWithNamespace(try origin.joinAlloc(linker.allocator, "", "", linker.options.jsx.refresh_runtime, "", ""), "bun");
// continue :outer;
// }
// if (linker.tagged_resolutions.react_refresh != null) {
// break :brk linker.tagged_resolutions.react_refresh.?;
// }
// },
// }
// if (comptime is_bun) {
// switch (linker.resolver.resolveAndAutoInstall(
// source_dir,
// import_record.path.text,
// import_record.kind,
// linker.options.global_cache,
// )) {
// .success => |_resolved_import| {
// switch (import_record.tag) {
// else => {},
// .react_refresh => {
// linker.tagged_resolutions.react_refresh = _resolved_import;
// linker.tagged_resolutions.react_refresh.?.path_pair.primary = linker.tagged_resolutions.react_refresh.?.path().?.dupeAlloc(bun.default_allocator) catch unreachable;
// },
// }
// break :brk _resolved_import;
// },
// .failure => |err| {
// break :brk err;
// },
// .pending => |pending1| {
// var pending = pending1;
// if (!linker.resolver.opts.global_cache.canInstall()) {
// break :brk error.InstallationPending;
// }
// pending.import_record_id = record_i;
// try result.pending_imports.append(linker.allocator, pending);
// continue;
// },
// .not_found => break :brk error.ModuleNotFound,
// // else => unreachable,
// }
// } else {
// if (linker.resolver.resolve(source_dir, import_record.path.text, import_record.kind)) |_resolved_import| {
// switch (import_record.tag) {
// else => {},
// .react_refresh => {
// linker.tagged_resolutions.react_refresh = _resolved_import;
// linker.tagged_resolutions.react_refresh.?.path_pair.primary = linker.tagged_resolutions.react_refresh.?.path().?.dupeAlloc(bun.default_allocator) catch unreachable;
// },
// }
// break :brk _resolved_import;
// } else |err| {
// break :brk err;
// }
// }
// };
// if (resolved_import_) |*resolved_import| {
// if (resolved_import.is_external or resolved_import.is_standalone_module) {
// if (resolved_import.is_external)
// externals.append(record_index) catch unreachable;
// continue;
// }
// const path = resolved_import.pathConst() orelse {
// import_record.path.is_disabled = true;
// continue;
// };
// const loader = linker.options.loader(path.name.ext);
// linker.processImportRecord(
// loader,
// // Include trailing slash
// source_dir,
// resolved_import,
// import_record,
// origin,
// import_path_format,
// ) catch continue;
// // If we're importing a CommonJS module as ESM
// // We need to do the following transform:
// // import React from 'react';
// // =>
// // import {_require} from 'RUNTIME_IMPORTS';
// // import * as react_module from 'react';
// // var React = _require(react_module).default;
// // UNLESS it's a namespace import
// // If it's a namespace import, assume it's safe.
// // We can do this in the printer instead of creating a bunch of AST nodes here.
// // But we need to at least tell the printer that this needs to happen.
// if (loader != .napi and resolved_import.shouldAssumeCommonJS(import_record.kind) and !is_bun) {
// import_record.do_commonjs_transform_in_printer = true;
// import_record.module_id = @as(u32, @truncate(bun.hash(path.pretty)));
// }
// } else |err| {
// switch (err) {
// error.VersionSpecifierNotAllowedHere => {
// var subpath_buf: [512]u8 = undefined;
// if (ESModule.Package.parse(import_record.path.text, &subpath_buf)) |pkg| {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Unexpected version \"{s}\" in import specifier \"{s}\". When a package.json is present, please use one of the \"dependencies\" fields in package.json for setting dependency versions",
// .{ pkg.version, import_record.path.text },
// import_record.kind,
// err,
// ) catch {};
// } else {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Unexpected version in import specifier \"{s}\". When a package.json is present, please use one of the \"dependencies\" fields in package.json to specify the version",
// .{import_record.path.text},
// import_record.kind,
// err,
// ) catch {};
// }
// had_resolve_errors = true;
// continue;
// },
// error.NoMatchingVersion => {
// if (import_record.handles_import_errors) {
// import_record.path.is_disabled = true;
// continue;
// }
// had_resolve_errors = true;
// var package_name = import_record.path.text;
// var subpath_buf: [512]u8 = undefined;
// if (ESModule.Package.parse(import_record.path.text, &subpath_buf)) |pkg| {
// package_name = pkg.name;
// if (pkg.version.len > 0) {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Version \"{s}\" not found for package \"{s}\" (while resolving \"{s}\")",
// .{ pkg.version, package_name, import_record.path.text },
// import_record.kind,
// err,
// ) catch {};
// } else {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "No matching version found for package \"{s}\" (while resolving \"{s}\")",
// .{ package_name, import_record.path.text },
// import_record.kind,
// err,
// ) catch {};
// }
// } else {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Package version not found: \"{s}\"",
// .{import_record.path.text},
// import_record.kind,
// err,
// ) catch {};
// }
// continue;
// },
// error.DistTagNotFound => {
// if (import_record.handles_import_errors) {
// import_record.path.is_disabled = true;
// continue;
// }
// had_resolve_errors = true;
// var package_name = import_record.path.text;
// var subpath_buf: [512]u8 = undefined;
// if (ESModule.Package.parse(import_record.path.text, &subpath_buf)) |pkg| {
// package_name = pkg.name;
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Version \"{s}\" not found for package \"{s}\" (while resolving \"{s}\")",
// .{ pkg.version, package_name, import_record.path.text },
// import_record.kind,
// err,
// ) catch {};
// } else {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Package tag not found: \"{s}\"",
// .{import_record.path.text},
// import_record.kind,
// err,
// ) catch {};
// }
// continue;
// },
// error.PackageManifestHTTP404 => {
// if (import_record.handles_import_errors) {
// import_record.path.is_disabled = true;
// continue;
// }
// had_resolve_errors = true;
// var package_name = import_record.path.text;
// var subpath_buf: [512]u8 = undefined;
// if (ESModule.Package.parse(import_record.path.text, &subpath_buf)) |pkg| {
// package_name = pkg.name;
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Package not found: \"{s}\" (while resolving \"{s}\")",
// .{ package_name, import_record.path.text },
// import_record.kind,
// err,
// ) catch {};
// } else {
// linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "Package not found: \"{s}\"",
// .{package_name},
// import_record.kind,
// err,
// ) catch {};
// }
// continue;
// },
// error.ModuleNotFound => {
// had_resolve_errors = try whenModuleNotFound(linker, import_record, result, is_bun);
// },
// else => {
// had_resolve_errors = true;
// try linker.log.addResolveError(
// &result.source,
// import_record.range,
// linker.allocator,
// "{s} resolving \"{s}\"",
// .{
// @errorName(err),
// import_record.path.text,
// },
// import_record.kind,
// err,
// );
// continue;
// },
// }
// }
}
},
else => {},
}
if (had_resolve_errors) return error.ResolveMessage;
result.ast.externals = try externals.toOwnedSlice();
}
fn whenModuleNotFound(
linker: *ThisLinker,
import_record: *ImportRecord,
result: *_bundler.ParseResult,
comptime is_bun: bool,
) !bool {
if (import_record.handles_import_errors) {
import_record.path.is_disabled = true;
return false;
}
if (comptime is_bun) {
// make these happen at runtime
if (import_record.kind == .require or import_record.kind == .require_resolve) {
return false;
}
}
if (import_record.path.text.len > 0 and Resolver.isPackagePath(import_record.path.text)) {
if (linker.options.target.isWebLike() and Options.ExternalModules.isNodeBuiltin(import_record.path.text)) {
try linker.log.addResolveError(
&result.source,
import_record.range,
linker.allocator,
"Could not resolve: \"{s}\". Try setting --target=\"node\"",
.{import_record.path.text},
import_record.kind,
error.ModuleNotFound,
);
} else {
try linker.log.addResolveError(
&result.source,
import_record.range,
linker.allocator,
"Could not resolve: \"{s}\". Maybe you need to \"bun install\"?",
.{import_record.path.text},
import_record.kind,
error.ModuleNotFound,
);
}
} else {
try linker.log.addResolveError(
&result.source,
import_record.range,
linker.allocator,
"Could not resolve: \"{s}\"",
.{
import_record.path.text,
},
import_record.kind,
error.ModuleNotFound,
);
}
return true;
}
const ImportPathsList = allocators.BSSStringList(512, 128);
pub var relative_paths_list: *ImportPathsList = undefined;
pub fn generateImportPath(
linker: *ThisLinker,
source_dir: string,
source_path: string,
use_hashed_name: bool,
namespace: string,
origin: URL,
comptime import_path_format: Options.BundleOptions.ImportPathFormat,
) !Fs.Path {
switch (import_path_format) {
.absolute_path => {
if (strings.eqlComptime(namespace, "node")) {
return Fs.Path.initWithNamespace(source_path, "node");
}
if (strings.eqlComptime(namespace, "bun") or strings.eqlComptime(namespace, "file") or namespace.len == 0) {
const relative_name = linker.fs.relative(source_dir, source_path);
return Fs.Path.initWithPretty(source_path, relative_name);
} else {
return Fs.Path.initWithNamespace(source_path, namespace);
}
},
.relative => {
var relative_name = linker.fs.relative(source_dir, source_path);
var pretty: string = undefined;
if (use_hashed_name) {
var basepath = Fs.Path.init(source_path);
const basename = try linker.getHashedFilename(basepath, null);
const dir = basepath.name.dirWithTrailingSlash();
var _pretty = try linker.allocator.alloc(u8, dir.len + basename.len + basepath.name.ext.len);
bun.copy(u8, _pretty, dir);
var remaining_pretty = _pretty[dir.len..];
bun.copy(u8, remaining_pretty, basename);
remaining_pretty = remaining_pretty[basename.len..];
bun.copy(u8, remaining_pretty, basepath.name.ext);
pretty = _pretty;
relative_name = try linker.allocator.dupe(u8, relative_name);
} else {
if (relative_name.len > 1 and !(relative_name[0] == std.fs.path.sep or relative_name[0] == '.')) {
pretty = try strings.concat(linker.allocator, &.{ "./", relative_name });
} else {
pretty = try linker.allocator.dupe(u8, relative_name);
}
relative_name = pretty;
}
return Fs.Path.initWithPretty(pretty, relative_name);
},
.absolute_url => {
if (strings.eqlComptime(namespace, "node")) {
if (comptime Environment.isDebug) std.debug.assert(strings.eqlComptime(source_path[0..5], "node:"));
return Fs.Path.init(try std.fmt.allocPrint(
linker.allocator,
// assumption: already starts with "node:"
"{s}/{s}",
.{
strings.withoutTrailingSlash(origin.href),
strings.withoutLeadingSlash(source_path),
},
));
} else {
var absolute_pathname = Fs.PathName.init(source_path);
if (!linker.options.preserve_extensions) {
if (linker.options.out_extensions.get(absolute_pathname.ext)) |ext| {
absolute_pathname.ext = ext;
}
}
var base = linker.fs.relativeTo(source_path);
if (strings.lastIndexOfChar(base, '.')) |dot| {
base = base[0..dot];
}
const dirname = std.fs.path.dirname(base) orelse "";
var basename = std.fs.path.basename(base);
if (use_hashed_name) {
const basepath = Fs.Path.init(source_path);
if (linker.options.serve) {
var hash_buf: [64]u8 = undefined;
const modkey = try linker.getModKey(basepath, null);
return Fs.Path.init(try origin.joinAlloc(
linker.allocator,
std.fmt.bufPrint(&hash_buf, "hash:{any}/", .{bun.fmt.hexIntLower(modkey.hash())}) catch unreachable,
dirname,
basename,
absolute_pathname.ext,
source_path,
));
}
basename = try linker.getHashedFilename(basepath, null);
}
return Fs.Path.init(try origin.joinAlloc(
linker.allocator,
linker.options.routes.asset_prefix_path,
dirname,
basename,
absolute_pathname.ext,
source_path,
));
}
},
else => unreachable,
}
}
pub fn processImportRecord(
linker: *ThisLinker,
loader: Options.Loader,
source_dir: string,
resolve_result: *const Resolver.Result,
import_record: *ImportRecord,
origin: URL,
comptime import_path_format: Options.BundleOptions.ImportPathFormat,
) !void {
linker.import_counter += 1;
const path = resolve_result.pathConst() orelse unreachable;
import_record.path = try linker.generateImportPath(
source_dir,
if (path.is_symlink and import_path_format == .absolute_url and linker.options.target.isNotBun()) path.pretty else path.text,
loader == .file or loader == .wasm,
path.namespace,
origin,
import_path_format,
);
switch (loader) {
.css => {
if (!linker.options.target.isBun())
_ = try linker.enqueueResolveResult(resolve_result);
if (linker.onImportCSS) |callback| {
callback(resolve_result, import_record, origin);
}
// This saves us a less reliable string check
import_record.print_mode = .css;
},
.napi => {
import_record.print_mode = .napi_module;
},
.wasm, .file => {
// if we're building for web/node, always print as import path
// if we're building for bun
// it's more complicated
// loader plugins could be executed between when this is called and the import is evaluated
// but we want to preserve the semantics of "file" returning import paths for compatibiltiy with frontend frameworkss
if (!linker.options.target.isBun()) {
import_record.print_mode = .import_path;
}
},
else => {},
}
}
pub fn resolveResultHashKey(linker: *ThisLinker, resolve_result: *const Resolver.Result) u64 {
const path = resolve_result.pathConst() orelse unreachable;
var hash_key = path.text;
// Shorter hash key is faster to hash
if (strings.startsWith(path.text, linker.fs.top_level_dir)) {
hash_key = path.text[linker.fs.top_level_dir.len..];
}
return bun.hash(hash_key);
}
pub fn enqueueResolveResult(linker: *ThisLinker, resolve_result: *const Resolver.Result) !bool {
const hash_key = linker.resolveResultHashKey(resolve_result);
const get_or_put_entry = try linker.resolve_results.getOrPut(hash_key);
if (!get_or_put_entry.found_existing) {
try linker.resolve_queue.writeItem(resolve_result.*);
}
return !get_or_put_entry.found_existing;
}
};