mirror of
https://github.com/oven-sh/bun
synced 2026-02-13 20:39:05 +00:00
05d0475c6c
Fixes ENG-21287
Build times, from `bun run build && echo '//' >> src/main.zig && time
bun run build`
|Platform|0.14.1|0.15.2|Speedup|
|-|-|-|-|
|macos debug asan|126.90s|106.27s|1.19x|
|macos debug noasan|60.62s|50.85s|1.19x|
|linux debug asan|292.77s|241.45s|1.21x|
|linux debug noasan|146.58s|130.94s|1.12x|
|linux debug use_llvm=false|n/a|78.27s|1.87x|
|windows debug asan|177.13s|142.55s|1.24x|
Runtime performance:
- next build memory usage may have gone up by 5%. Otherwise seems the
same. Some code with writers may have gotten slower, especially one
instance of a counting writer and a few instances of unbuffered writers
that now have vtable overhead.
- File size reduced by 800kb (from 100.2mb to 99.4mb)
Improvements:
- `@export` hack is no longer needed for watch
- native x86_64 backend for linux builds faster. to use it, set use_llvm
false and no_link_obj false. also set `ASAN_OPTIONS=detect_leaks=0`
otherwise it will spam the output with tens of thousands of lines of
debug info errors. may need to use the zig lldb fork for debugging.
- zig test-obj, which we will be able to use for zig unit tests
Still an issue:
- false 'dependency loop' errors remain in watch mode
- watch mode crashes observed
Follow-up:
- [ ] search `comptime Writer: type` and `comptime W: type` and remove
- [ ] remove format_mode in our zig fork
- [ ] remove deprecated.zig autoFormatLabelFallback
- [ ] remove deprecated.zig autoFormatLabel
- [ ] remove deprecated.BufferedWriter and BufferedReader
- [ ] remove override_no_export_cpp_apis as it is no longer needed
- [ ] css Parser(W) -> Parser, and remove all the comptime writer: type
params
- [ ] remove deprecated writer fully
Files that add lines:
```
649 src/deprecated.zig
167 scripts/pack-codegen-for-zig-team.ts
54 scripts/cleartrace-impl.js
46 scripts/cleartrace.ts
43 src/windows.zig
18 src/fs.zig
17 src/bun.js/ConsoleObject.zig
16 src/output.zig
12 src/bun.js/test/debug.zig
12 src/bun.js/node/node_fs.zig
8 src/env_loader.zig
7 src/css/printer.zig
7 src/cli/init_command.zig
7 src/bun.js/node.zig
6 src/string/escapeRegExp.zig
6 src/install/PnpmMatcher.zig
5 src/bun.js/webcore/Blob.zig
4 src/crash_handler.zig
4 src/bun.zig
3 src/install/lockfile/bun.lock.zig
3 src/cli/update_interactive_command.zig
3 src/cli/pack_command.zig
3 build.zig
2 src/Progress.zig
2 src/install/lockfile/lockfile_json_stringify_for_debugging.zig
2 src/css/small_list.zig
2 src/bun.js/webcore/prompt.zig
1 test/internal/ban-words.test.ts
1 test/internal/ban-limits.json
1 src/watcher/WatcherTrace.zig
1 src/transpiler.zig
1 src/shell/builtin/cp.zig
1 src/js_printer.zig
1 src/io/PipeReader.zig
1 src/install/bin.zig
1 src/css/selectors/selector.zig
1 src/cli/run_command.zig
1 src/bun.js/RuntimeTranspilerStore.zig
1 src/bun.js/bindings/JSRef.zig
1 src/bake/DevServer.zig
```
Files that remove lines:
```
-1 src/test/recover.zig
-1 src/sql/postgres/SocketMonitor.zig
-1 src/sql/mysql/MySQLRequestQueue.zig
-1 src/sourcemap/CodeCoverage.zig
-1 src/css/values/color_js.zig
-1 src/compile_target.zig
-1 src/bundler/linker_context/convertStmtsForChunk.zig
-1 src/bundler/bundle_v2.zig
-1 src/bun.js/webcore/blob/read_file.zig
-1 src/ast/base.zig
-2 src/sql/postgres/protocol/ArrayList.zig
-2 src/shell/builtin/mkdir.zig
-2 src/install/PackageManager/patchPackage.zig
-2 src/install/PackageManager/PackageManagerDirectories.zig
-2 src/fmt.zig
-2 src/css/declaration.zig
-2 src/css/css_parser.zig
-2 src/collections/baby_list.zig
-2 src/bun.js/bindings/ZigStackFrame.zig
-2 src/ast/E.zig
-3 src/StandaloneModuleGraph.zig
-3 src/deps/picohttp.zig
-3 src/deps/libuv.zig
-3 src/btjs.zig
-4 src/threading/Futex.zig
-4 src/shell/builtin/touch.zig
-4 src/meta.zig
-4 src/install/lockfile.zig
-4 src/css/selectors/parser.zig
-5 src/shell/interpreter.zig
-5 src/css/error.zig
-5 src/bun.js/web_worker.zig
-5 src/bun.js.zig
-6 src/cli/test_command.zig
-6 src/bun.js/VirtualMachine.zig
-6 src/bun.js/uuid.zig
-6 src/bun.js/bindings/JSValue.zig
-9 src/bun.js/test/pretty_format.zig
-9 src/bun.js/api/BunObject.zig
-14 src/install/install_binding.zig
-14 src/fd.zig
-14 src/bun.js/node/path.zig
-14 scripts/pack-codegen-for-zig-team.sh
-17 src/bun.js/test/diff_format.zig
```
`git diff --numstat origin/main...HEAD | awk '{ print ($1-$2)"\t"$3 }' |
sort -rn`
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Dylan Conway <dylan.conway567@gmail.com>
Co-authored-by: Meghan Denny <meghan@bun.com>
Co-authored-by: tayor.fish <contact@taylor.fish>
729 lines
38 KiB
Zig
729 lines
38 KiB
Zig
pub fn AstMaybe(
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comptime parser_feature__typescript: bool,
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comptime parser_feature__jsx: JSXTransformType,
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comptime parser_feature__scan_only: bool,
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) type {
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return struct {
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const P = js_parser.NewParser_(parser_feature__typescript, parser_feature__jsx, parser_feature__scan_only);
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pub fn maybeRelocateVarsToTopLevel(p: *P, decls: []const G.Decl, mode: RelocateVars.Mode) RelocateVars {
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// Only do this when the scope is not already top-level and when we're not inside a function.
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if (p.current_scope == p.module_scope) {
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return .{ .ok = false };
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}
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var scope = p.current_scope;
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while (!scope.kindStopsHoisting()) {
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if (comptime Environment.allow_assert) assert(scope.parent != null);
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scope = scope.parent.?;
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}
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if (scope != p.module_scope) {
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return .{ .ok = false };
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}
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var value: Expr = Expr{ .loc = logger.Loc.Empty, .data = Expr.Data{ .e_missing = E.Missing{} } };
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for (decls) |decl| {
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const binding = Binding.toExpr(
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&decl.binding,
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p.to_expr_wrapper_hoisted,
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);
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if (decl.value) |decl_value| {
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value = value.joinWithComma(Expr.assign(binding, decl_value), p.allocator);
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} else if (mode == .for_in_or_for_of) {
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value = value.joinWithComma(binding, p.allocator);
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}
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}
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if (value.data == .e_missing) {
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return .{ .ok = true };
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}
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return .{ .stmt = p.s(S.SExpr{ .value = value }, value.loc), .ok = true };
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}
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// EDot nodes represent a property access. This function may return an
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// expression to replace the property access with. It assumes that the
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// target of the EDot expression has already been visited.
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pub fn maybeRewritePropertyAccess(
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p: *P,
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loc: logger.Loc,
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target: js_ast.Expr,
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name: string,
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name_loc: logger.Loc,
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identifier_opts: IdentifierOpts,
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) ?Expr {
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sw: switch (target.data) {
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.e_identifier => |id| {
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// Rewrite property accesses on explicit namespace imports as an identifier.
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// This lets us replace them easily in the printer to rebind them to
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// something else without paying the cost of a whole-tree traversal during
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// module linking just to rewrite these EDot expressions.
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if (p.options.bundle) {
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if (p.import_items_for_namespace.getPtr(id.ref)) |import_items| {
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const ref = (import_items.get(name) orelse brk: {
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// Generate a new import item symbol in the module scope
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const new_item = LocRef{
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.loc = name_loc,
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.ref = p.newSymbol(.import, name) catch unreachable,
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};
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bun.handleOom(p.module_scope.generated.append(p.allocator, new_item.ref.?));
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import_items.put(name, new_item) catch unreachable;
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p.is_import_item.put(p.allocator, new_item.ref.?, {}) catch unreachable;
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var symbol = &p.symbols.items[new_item.ref.?.innerIndex()];
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// Mark this as generated in case it's missing. We don't want to
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// generate errors for missing import items that are automatically
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// generated.
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symbol.import_item_status = .generated;
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break :brk new_item;
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}).ref.?;
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// Undo the usage count for the namespace itself. This is used later
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// to detect whether the namespace symbol has ever been "captured"
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// or whether it has just been used to read properties off of.
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//
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// The benefit of doing this is that if both this module and the
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// imported module end up in the same module group and the namespace
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// symbol has never been captured, then we don't need to generate
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// any code for the namespace at all.
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p.ignoreUsage(id.ref);
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// Track how many times we've referenced this symbol
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p.recordUsage(ref);
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return p.handleIdentifier(
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name_loc,
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E.Identifier{ .ref = ref },
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name,
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.{
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.assign_target = identifier_opts.assign_target,
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.is_call_target = identifier_opts.is_call_target,
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.is_delete_target = identifier_opts.is_delete_target,
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// If this expression is used as the target of a call expression, make
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// sure the value of "this" is preserved.
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.was_originally_identifier = false,
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},
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);
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}
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}
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if (!p.is_control_flow_dead and id.ref.eql(p.module_ref)) {
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// Rewrite "module.require()" to "require()" for Webpack compatibility.
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// See https://github.com/webpack/webpack/pull/7750 for more info.
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// This also makes correctness a little easier.
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if (identifier_opts.is_call_target and strings.eqlComptime(name, "require")) {
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p.ignoreUsage(p.module_ref);
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return p.valueForRequire(name_loc);
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} else if (!p.commonjs_named_exports_deoptimized and strings.eqlComptime(name, "exports")) {
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if (identifier_opts.assign_target != .none) {
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p.commonjs_module_exports_assigned_deoptimized = true;
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}
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// Detect if we are doing
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//
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// module.exports = {
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// foo: "bar"
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// }
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//
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// Note that it cannot be any of these:
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//
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// module.exports += { };
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// delete module.exports = {};
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// module.exports()
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if (!(identifier_opts.is_call_target or identifier_opts.is_delete_target) and
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identifier_opts.assign_target == .replace and
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p.stmt_expr_value == .e_binary and
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p.stmt_expr_value.e_binary.op == .bin_assign)
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{
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if (
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// if it's not top-level, don't do this
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p.module_scope != p.current_scope or
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// if you do
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//
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// exports.foo = 123;
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// module.exports = {};
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//
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// that's a de-opt.
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p.commonjs_named_exports.count() > 0 or
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// anything which is not module.exports = {} is a de-opt.
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p.stmt_expr_value.e_binary.right.data != .e_object or
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p.stmt_expr_value.e_binary.left.data != .e_dot or
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!strings.eqlComptime(p.stmt_expr_value.e_binary.left.data.e_dot.name, "exports") or
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p.stmt_expr_value.e_binary.left.data.e_dot.target.data != .e_identifier or
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!p.stmt_expr_value.e_binary.left.data.e_dot.target.data.e_identifier.ref.eql(p.module_ref))
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{
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p.deoptimizeCommonJSNamedExports();
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return null;
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}
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const props: []const G.Property = p.stmt_expr_value.e_binary.right.data.e_object.properties.slice();
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for (props) |prop| {
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// if it's not a trivial object literal, de-opt
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if (prop.kind != .normal or
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prop.key == null or
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prop.key.?.data != .e_string or
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prop.flags.contains(Flags.Property.is_method) or
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prop.flags.contains(Flags.Property.is_computed) or
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prop.flags.contains(Flags.Property.is_spread) or
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prop.flags.contains(Flags.Property.is_static) or
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// If it creates a new scope, we can't do this optimization right now
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// Our scope order verification stuff will get mad
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// But we should let you do module.exports = { bar: foo(), baz: 123 }
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// just not module.exports = { bar: function() {} }
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// just not module.exports = { bar() {} }
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switch (prop.value.?.data) {
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.e_commonjs_export_identifier, .e_import_identifier, .e_identifier => false,
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.e_call => |call| switch (call.target.data) {
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.e_commonjs_export_identifier, .e_import_identifier, .e_identifier => false,
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else => |call_target| !@as(Expr.Tag, call_target).isPrimitiveLiteral(),
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},
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else => !prop.value.?.isPrimitiveLiteral(),
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})
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{
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p.deoptimizeCommonJSNamedExports();
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return null;
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}
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} else {
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// empty object de-opts because otherwise the statement becomes
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// <empty space> = {};
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p.deoptimizeCommonJSNamedExports();
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return null;
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}
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var stmts = std.array_list.Managed(Stmt).initCapacity(p.allocator, props.len * 2) catch unreachable;
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var decls = p.allocator.alloc(Decl, props.len) catch unreachable;
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var clause_items = p.allocator.alloc(js_ast.ClauseItem, props.len) catch unreachable;
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for (props) |prop| {
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const key = prop.key.?.data.e_string.string(p.allocator) catch unreachable;
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const visited_value = p.visitExpr(prop.value.?);
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const value = SideEffects.simplifyUnusedExpr(p, visited_value) orelse visited_value;
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// We are doing `module.exports = { ... }`
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// lets rewrite it to a series of what will become export assignments
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const named_export_entry = p.commonjs_named_exports.getOrPut(p.allocator, key) catch unreachable;
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if (!named_export_entry.found_existing) {
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const new_ref = p.newSymbol(
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.other,
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std.fmt.allocPrint(p.allocator, "${f}", .{bun.fmt.fmtIdentifier(key)}) catch unreachable,
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) catch unreachable;
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bun.handleOom(p.module_scope.generated.append(p.allocator, new_ref));
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named_export_entry.value_ptr.* = .{
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.loc_ref = LocRef{
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.loc = name_loc,
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.ref = new_ref,
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},
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.needs_decl = false,
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};
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}
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const ref = named_export_entry.value_ptr.loc_ref.ref.?;
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// module.exports = {
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// foo: "bar",
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// baz: "qux",
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// }
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// ->
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// exports.foo = "bar", exports.baz = "qux"
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// Which will become
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// $foo = "bar";
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// $baz = "qux";
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// export { $foo as foo, $baz as baz }
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decls[0] = .{
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.binding = p.b(B.Identifier{ .ref = ref }, prop.key.?.loc),
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.value = value,
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};
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// we have to ensure these are known to be top-level
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p.declared_symbols.append(p.allocator, .{
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.ref = ref,
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.is_top_level = true,
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}) catch unreachable;
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p.had_commonjs_named_exports_this_visit = true;
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clause_items[0] = js_ast.ClauseItem{
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// We want the generated name to not conflict
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.alias = key,
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.alias_loc = prop.key.?.loc,
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.name = named_export_entry.value_ptr.loc_ref,
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};
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stmts.appendSlice(
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&[_]Stmt{
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p.s(
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S.Local{
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.kind = .k_var,
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.is_export = false,
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.was_commonjs_export = true,
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.decls = G.Decl.List.init(decls[0..1]),
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},
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prop.key.?.loc,
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),
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p.s(
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S.ExportClause{
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.items = clause_items[0..1],
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.is_single_line = true,
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},
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prop.key.?.loc,
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),
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},
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) catch unreachable;
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decls = decls[1..];
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clause_items = clause_items[1..];
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}
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p.ignoreUsage(p.module_ref);
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p.commonjs_replacement_stmts = stmts.items;
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return p.newExpr(E.Missing{}, name_loc);
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}
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// Deoptimizations:
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// delete module.exports
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// module.exports();
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if (identifier_opts.is_call_target or identifier_opts.is_delete_target or identifier_opts.assign_target != .none) {
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p.deoptimizeCommonJSNamedExports();
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return null;
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}
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// rewrite `module.exports` to `exports`
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return .{ .data = .{ .e_special = .module_exports }, .loc = name_loc };
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} else if (p.options.bundle and strings.eqlComptime(name, "id") and identifier_opts.assign_target == .none) {
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// inline module.id
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p.ignoreUsage(p.module_ref);
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return p.newExpr(E.String.init(p.source.path.pretty), name_loc);
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} else if (p.options.bundle and strings.eqlComptime(name, "filename") and identifier_opts.assign_target == .none) {
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// inline module.filename
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p.ignoreUsage(p.module_ref);
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return p.newExpr(E.String.init(p.source.path.name.filename), name_loc);
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} else if (p.options.bundle and strings.eqlComptime(name, "path") and identifier_opts.assign_target == .none) {
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// inline module.path
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p.ignoreUsage(p.module_ref);
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return p.newExpr(E.String.init(p.source.path.pretty), name_loc);
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}
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}
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if (p.shouldUnwrapCommonJSToESM()) {
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if (!p.is_control_flow_dead and id.ref.eql(p.exports_ref)) {
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if (!p.commonjs_named_exports_deoptimized) {
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if (identifier_opts.is_delete_target) {
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p.deoptimizeCommonJSNamedExports();
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return null;
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}
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const named_export_entry = p.commonjs_named_exports.getOrPut(p.allocator, name) catch unreachable;
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if (!named_export_entry.found_existing) {
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const new_ref = p.newSymbol(
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.other,
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std.fmt.allocPrint(p.allocator, "${f}", .{bun.fmt.fmtIdentifier(name)}) catch unreachable,
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) catch unreachable;
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bun.handleOom(p.module_scope.generated.append(p.allocator, new_ref));
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named_export_entry.value_ptr.* = .{
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.loc_ref = LocRef{
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.loc = name_loc,
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.ref = new_ref,
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},
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.needs_decl = true,
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};
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if (p.commonjs_named_exports_needs_conversion == std.math.maxInt(u32))
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p.commonjs_named_exports_needs_conversion = @as(u32, @truncate(p.commonjs_named_exports.count() - 1));
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}
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const ref = named_export_entry.value_ptr.*.loc_ref.ref.?;
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p.ignoreUsage(id.ref);
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p.recordUsage(ref);
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return p.newExpr(
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E.CommonJSExportIdentifier{
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.ref = ref,
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},
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name_loc,
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);
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} else if (p.options.features.commonjs_at_runtime and identifier_opts.assign_target != .none) {
|
|
p.has_commonjs_export_names = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle references to namespaces or namespace members
|
|
if (p.ts_namespace.expr == .e_identifier and
|
|
id.ref.eql(p.ts_namespace.expr.e_identifier.ref) and
|
|
identifier_opts.assign_target == .none and
|
|
!identifier_opts.is_delete_target)
|
|
{
|
|
return maybeRewritePropertyAccessForNamespace(p, name, &target, loc, name_loc);
|
|
}
|
|
},
|
|
.e_string => |str| {
|
|
if (p.options.features.minify_syntax) {
|
|
// minify "long-string".length to 11
|
|
if (strings.eqlComptime(name, "length")) {
|
|
if (str.javascriptLength()) |len| {
|
|
return p.newExpr(E.Number{ .value = @floatFromInt(len) }, loc);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
.e_inlined_enum => |ie| {
|
|
continue :sw ie.value.data;
|
|
},
|
|
.e_object => |obj| {
|
|
if (comptime FeatureFlags.inline_properties_in_transpiler) {
|
|
if (p.options.features.minify_syntax) {
|
|
// Rewrite a property access like this:
|
|
// { f: () => {} }.f
|
|
// To:
|
|
// () => {}
|
|
//
|
|
// To avoid thinking too much about edgecases, only do this for:
|
|
// 1) Objects with a single property
|
|
// 2) Not a method, not a computed property
|
|
if (obj.properties.len == 1 and
|
|
!identifier_opts.is_delete_target and
|
|
identifier_opts.assign_target == .none and !identifier_opts.is_call_target)
|
|
{
|
|
const prop: G.Property = obj.properties.ptr[0];
|
|
if (prop.value != null and
|
|
prop.flags.count() == 0 and
|
|
prop.key != null and
|
|
prop.key.?.data == .e_string and
|
|
prop.key.?.data.e_string.eql([]const u8, name) and
|
|
!bun.strings.eqlComptime(name, "__proto__"))
|
|
{
|
|
return prop.value.?;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
.e_import_meta => {
|
|
if (strings.eqlComptime(name, "main")) {
|
|
return p.valueForImportMetaMain(false, target.loc);
|
|
}
|
|
|
|
if (strings.eqlComptime(name, "hot")) {
|
|
return .{ .data = .{
|
|
.e_special = if (p.options.features.hot_module_reloading) .hot_enabled else .hot_disabled,
|
|
}, .loc = loc };
|
|
}
|
|
|
|
// Inline import.meta properties for Bake
|
|
if (p.options.framework != null or (p.options.bundle and p.options.output_format == .cjs)) {
|
|
if (strings.eqlComptime(name, "dir") or strings.eqlComptime(name, "dirname")) {
|
|
// Inline import.meta.dir
|
|
return p.newExpr(E.String.init(p.source.path.name.dir), name_loc);
|
|
} else if (strings.eqlComptime(name, "file")) {
|
|
// Inline import.meta.file (filename only)
|
|
return p.newExpr(E.String.init(p.source.path.name.filename), name_loc);
|
|
} else if (strings.eqlComptime(name, "path")) {
|
|
// Inline import.meta.path (full path)
|
|
return p.newExpr(E.String.init(p.source.path.text), name_loc);
|
|
} else if (strings.eqlComptime(name, "url")) {
|
|
// Inline import.meta.url as file:// URL
|
|
const bunstr = bun.String.fromBytes(p.source.path.text);
|
|
defer bunstr.deref();
|
|
const url = std.fmt.allocPrint(p.allocator, "{f}", .{jsc.URL.fileURLFromString(bunstr)}) catch unreachable;
|
|
return p.newExpr(E.String.init(url), name_loc);
|
|
}
|
|
}
|
|
|
|
// Make all property accesses on `import.meta.url` side effect free.
|
|
return p.newExpr(
|
|
E.Dot{
|
|
.target = target,
|
|
.name = name,
|
|
.name_loc = name_loc,
|
|
.can_be_removed_if_unused = true,
|
|
},
|
|
target.loc,
|
|
);
|
|
},
|
|
.e_require_call_target => {
|
|
if (strings.eqlComptime(name, "main")) {
|
|
return .{ .loc = loc, .data = .e_require_main };
|
|
}
|
|
},
|
|
.e_import_identifier => |id| {
|
|
// Symbol uses due to a property access off of an imported symbol are tracked
|
|
// specially. This lets us do tree shaking for cross-file TypeScript enums.
|
|
if (p.options.bundle and !p.is_control_flow_dead) {
|
|
const use = p.symbol_uses.getPtr(id.ref).?;
|
|
use.count_estimate -|= 1;
|
|
// note: this use is not removed as we assume it exists later
|
|
|
|
// Add a special symbol use instead
|
|
const gop = p.import_symbol_property_uses.getOrPutValue(
|
|
p.allocator,
|
|
id.ref,
|
|
.{},
|
|
) catch |err| bun.handleOom(err);
|
|
const inner_use = gop.value_ptr.getOrPutValue(
|
|
p.allocator,
|
|
name,
|
|
.{},
|
|
) catch |err| bun.handleOom(err);
|
|
inner_use.value_ptr.count_estimate += 1;
|
|
}
|
|
},
|
|
inline .e_dot, .e_index => |data, tag| {
|
|
if (p.ts_namespace.expr == tag and
|
|
data == @field(p.ts_namespace.expr, @tagName(tag)) and
|
|
identifier_opts.assign_target == .none and
|
|
!identifier_opts.is_delete_target)
|
|
{
|
|
return maybeRewritePropertyAccessForNamespace(p, name, &target, loc, name_loc);
|
|
}
|
|
},
|
|
.e_special => |special| switch (special) {
|
|
.module_exports => {
|
|
if (p.shouldUnwrapCommonJSToESM()) {
|
|
if (!p.is_control_flow_dead) {
|
|
if (!p.commonjs_named_exports_deoptimized) {
|
|
if (identifier_opts.is_delete_target) {
|
|
p.deoptimizeCommonJSNamedExports();
|
|
return null;
|
|
}
|
|
|
|
const named_export_entry = p.commonjs_named_exports.getOrPut(p.allocator, name) catch unreachable;
|
|
if (!named_export_entry.found_existing) {
|
|
const new_ref = p.newSymbol(
|
|
.other,
|
|
std.fmt.allocPrint(p.allocator, "${f}", .{bun.fmt.fmtIdentifier(name)}) catch unreachable,
|
|
) catch unreachable;
|
|
bun.handleOom(p.module_scope.generated.append(p.allocator, new_ref));
|
|
named_export_entry.value_ptr.* = .{
|
|
.loc_ref = LocRef{
|
|
.loc = name_loc,
|
|
.ref = new_ref,
|
|
},
|
|
.needs_decl = true,
|
|
};
|
|
if (p.commonjs_named_exports_needs_conversion == std.math.maxInt(u32))
|
|
p.commonjs_named_exports_needs_conversion = @as(u32, @truncate(p.commonjs_named_exports.count() - 1));
|
|
}
|
|
|
|
const ref = named_export_entry.value_ptr.*.loc_ref.ref.?;
|
|
p.recordUsage(ref);
|
|
|
|
return p.newExpr(
|
|
E.CommonJSExportIdentifier{
|
|
.ref = ref,
|
|
// Record this as from module.exports
|
|
.base = .module_dot_exports,
|
|
},
|
|
name_loc,
|
|
);
|
|
} else if (p.options.features.commonjs_at_runtime and identifier_opts.assign_target != .none) {
|
|
p.has_commonjs_export_names = true;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
.hot_enabled, .hot_disabled => {
|
|
const enabled = p.options.features.hot_module_reloading;
|
|
if (bun.strings.eqlComptime(name, "data")) {
|
|
return if (enabled)
|
|
.{ .data = .{ .e_special = .hot_data }, .loc = loc }
|
|
else
|
|
Expr.init(E.Object, .{}, loc);
|
|
}
|
|
if (bun.strings.eqlComptime(name, "accept")) {
|
|
if (!enabled) {
|
|
p.method_call_must_be_replaced_with_undefined = true;
|
|
return .{ .data = .e_undefined, .loc = loc };
|
|
}
|
|
return .{ .data = .{
|
|
.e_special = .hot_accept,
|
|
}, .loc = loc };
|
|
}
|
|
const lookup_table = comptime bun.ComptimeStringMap(void, [_]struct { [:0]const u8, void }{
|
|
.{ "decline", {} },
|
|
.{ "dispose", {} },
|
|
.{ "prune", {} },
|
|
.{ "invalidate", {} },
|
|
.{ "on", {} },
|
|
.{ "off", {} },
|
|
.{ "send", {} },
|
|
});
|
|
if (lookup_table.has(name)) {
|
|
if (enabled) {
|
|
return Expr.init(E.Dot, .{
|
|
.target = Expr.initIdentifier(p.hmr_api_ref, target.loc),
|
|
.name = name,
|
|
.name_loc = name_loc,
|
|
}, loc);
|
|
} else {
|
|
p.method_call_must_be_replaced_with_undefined = true;
|
|
return .{ .data = .e_undefined, .loc = loc };
|
|
}
|
|
} else {
|
|
// This error is a bit out of place since the HMR
|
|
// API is validated in the parser instead of at
|
|
// runtime. When the API is not validated in this
|
|
// way, the developer may unintentionally read or
|
|
// write internal fields of HMRModule.
|
|
p.log.addError(
|
|
p.source,
|
|
loc,
|
|
std.fmt.allocPrint(
|
|
p.allocator,
|
|
"import.meta.hot.{s} does not exist",
|
|
.{name},
|
|
) catch |err| bun.handleOom(err),
|
|
) catch |err| bun.handleOom(err);
|
|
return .{ .data = .e_undefined, .loc = loc };
|
|
}
|
|
},
|
|
else => {},
|
|
},
|
|
else => {},
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
fn maybeRewritePropertyAccessForNamespace(
|
|
p: *P,
|
|
name: string,
|
|
target: *const Expr,
|
|
loc: logger.Loc,
|
|
name_loc: logger.Loc,
|
|
) ?Expr {
|
|
if (p.ts_namespace.map.?.get(name)) |value| {
|
|
switch (value.data) {
|
|
.enum_number => |num| {
|
|
p.ignoreUsageOfIdentifierInDotChain(target.*);
|
|
return p.wrapInlinedEnum(
|
|
.{ .loc = loc, .data = .{ .e_number = .{ .value = num } } },
|
|
name,
|
|
);
|
|
},
|
|
|
|
.enum_string => |str| {
|
|
p.ignoreUsageOfIdentifierInDotChain(target.*);
|
|
return p.wrapInlinedEnum(
|
|
.{ .loc = loc, .data = .{ .e_string = str } },
|
|
name,
|
|
);
|
|
},
|
|
|
|
.namespace => |namespace| {
|
|
// If this isn't a constant, return a clone of this property access
|
|
// but with the namespace member data associated with it so that
|
|
// more property accesses off of this property access are recognized.
|
|
const expr = if (js_lexer.isIdentifier(name))
|
|
p.newExpr(E.Dot{
|
|
.target = target.*,
|
|
.name = name,
|
|
.name_loc = name_loc,
|
|
}, loc)
|
|
else
|
|
p.newExpr(E.Dot{
|
|
.target = target.*,
|
|
.name = name,
|
|
.name_loc = name_loc,
|
|
}, loc);
|
|
|
|
p.ts_namespace = .{
|
|
.expr = expr.data,
|
|
.map = namespace,
|
|
};
|
|
|
|
return expr;
|
|
},
|
|
|
|
else => {},
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
pub fn checkIfDefinedHelper(p: *P, expr: Expr) !Expr {
|
|
return p.newExpr(
|
|
E.Binary{
|
|
.op = .bin_strict_eq,
|
|
.left = p.newExpr(
|
|
E.Unary{
|
|
.op = .un_typeof,
|
|
.value = expr,
|
|
.flags = .{
|
|
.was_originally_typeof_identifier = expr.data == .e_identifier,
|
|
},
|
|
},
|
|
logger.Loc.Empty,
|
|
),
|
|
.right = p.newExpr(
|
|
E.String{ .data = "undefined" },
|
|
logger.Loc.Empty,
|
|
),
|
|
},
|
|
logger.Loc.Empty,
|
|
);
|
|
}
|
|
|
|
pub fn maybeDefinedHelper(p: *P, identifier_expr: Expr) !Expr {
|
|
return p.newExpr(
|
|
E.If{
|
|
.test_ = try p.checkIfDefinedHelper(identifier_expr),
|
|
.yes = p.newExpr(
|
|
E.Identifier{
|
|
.ref = (p.findSymbol(logger.Loc.Empty, "Object") catch unreachable).ref,
|
|
},
|
|
logger.Loc.Empty,
|
|
),
|
|
.no = identifier_expr,
|
|
},
|
|
logger.Loc.Empty,
|
|
);
|
|
}
|
|
|
|
pub fn maybeCommaSpreadError(p: *P, _comma_after_spread: ?logger.Loc) void {
|
|
const comma_after_spread = _comma_after_spread orelse return;
|
|
if (comma_after_spread.start == -1) return;
|
|
|
|
p.log.addRangeError(p.source, logger.Range{ .loc = comma_after_spread, .len = 1 }, "Unexpected \",\" after rest pattern") catch unreachable;
|
|
}
|
|
};
|
|
}
|
|
|
|
const string = []const u8;
|
|
|
|
const bun = @import("bun");
|
|
const Environment = bun.Environment;
|
|
const FeatureFlags = bun.FeatureFlags;
|
|
const assert = bun.assert;
|
|
const js_lexer = bun.js_lexer;
|
|
const jsc = bun.jsc;
|
|
const logger = bun.logger;
|
|
const strings = bun.strings;
|
|
|
|
const js_ast = bun.ast;
|
|
const B = js_ast.B;
|
|
const Binding = js_ast.Binding;
|
|
const E = js_ast.E;
|
|
const Expr = js_ast.Expr;
|
|
const Flags = js_ast.Flags;
|
|
const LocRef = js_ast.LocRef;
|
|
const S = js_ast.S;
|
|
const Stmt = js_ast.Stmt;
|
|
const Symbol = js_ast.Symbol;
|
|
|
|
const G = js_ast.G;
|
|
const Decl = G.Decl;
|
|
const Property = G.Property;
|
|
|
|
const js_parser = bun.js_parser;
|
|
const IdentifierOpts = js_parser.IdentifierOpts;
|
|
const JSXTransformType = js_parser.JSXTransformType;
|
|
const RelocateVars = js_parser.RelocateVars;
|
|
const SideEffects = js_parser.SideEffects;
|
|
const TypeScript = js_parser.TypeScript;
|
|
const options = js_parser.options;
|
|
|
|
const std = @import("std");
|
|
const List = std.ArrayListUnmanaged;
|