Fix __dirname and __pathname

Former-commit-id: 58c1c3b1a5ff24e040d995559baf3162f7e11ab7

1 files changed, 24 insertions, 1 deletions

diff --git a/src/defines.zig b/src/defines.zig
index 88665aa06..a0e3bc8ea 100644
--- a/src/defines.zig
+++ b/src/defines.zig
@@ -184,6 +184,11 @@ pub const DotDefine = struct {
 var nan_val = js_ast.E.Number{ .value = std.math.nan_f64 };
 var inf_val = js_ast.E.Number{ .value = std.math.inf_f64 };
 
+const __dirname_str: string = std.fs.path.sep_str ++ "__dirname_is_not_implemented";
+const __filename_str: string = "__filename_is_not_implemented.js";
+var __dirname = js_ast.E.String{ .utf8 = __dirname_str };
+var __filename = js_ast.E.String{ .utf8 = __filename_str };
+
 pub const Define = struct {
     identifiers: std.StringHashMap(IdentifierDefine),
     dots: std.StringHashMap([]DotDefine),
@@ -194,7 +199,7 @@ pub const Define = struct {
         define.allocator = allocator;
         define.identifiers = std.StringHashMap(IdentifierDefine).init(allocator);
         define.dots = std.StringHashMap([]DotDefine).init(allocator);
-        try define.identifiers.ensureCapacity(641);
+        try define.identifiers.ensureCapacity(641 + 2);
         try define.dots.ensureCapacity(64);
 
         var val = js_ast.Expr.Data{ .e_undefined = .{} };
@@ -233,6 +238,24 @@ pub const Define = struct {
             }
         }
 
+        // Node.js backwards compatibility hack
+        define.identifiers.putAssumeCapacity(
+            "__dirname",
+            DefineData{
+                .value = js_ast.Expr.Data{
+                    .e_string = &__dirname,
+                },
+            },
+        );
+        define.identifiers.putAssumeCapacity(
+            "__filename",
+            DefineData{
+                .value = js_ast.Expr.Data{
+                    .e_string = &__filename,
+                },
+            },
+        );
+
         // Step 2. Swap in certain literal values because those can be constant folded
         define.identifiers.putAssumeCapacity("undefined", value_define);
         define.identifiers.putAssumeCapacity("NaN", DefineData{