Refactor WASM binding directory structure

* All tests moved into wasm/codegen/tests folder
* Merged wasm/codegen/helpers/ into wasm/codegen/generators/

PiperOrigin-RevId: 829471173
Change-Id: I2dbc5d9351771817ec260c7ddf87c31e66a9eabe

wasm/codegen/update.py

@@ -14,73 +14,14 @@
 
 """Generates Javascript/TypeScript bindings for MuJoCo."""
 
-import os
-
-from introspect import ast_nodes
-from introspect import enums as introspect_enums
-from introspect import functions as introspect_functions
-
-from wasm.codegen.generators import enums
-from wasm.codegen.generators import functions
-from wasm.codegen.generators import structs
-from wasm.codegen.helpers import common
-from wasm.codegen.helpers import constants as _constants
-from wasm.codegen.helpers import functions as function_utils
-
-
-class BindingBuilder:
-  """Builds WASM bindings for MuJoCo."""
-
-  def __init__(
-      self,
-      template_path_cc: str,
-  ):
-    with open(template_path_cc, "r") as f:
-      self.content_cc = f.readlines()
-
-    self.markers_and_content = []
-
-  def set_enums(self):
-    """Generates and sets the enum bindings."""
-    generator = enums.Generator(introspect_enums.ENUMS)
-    self.markers_and_content += generator.generate()
-    return self
-
-  def set_structs(self):
-    """Generates and sets the struct bindings."""
-    generator = structs.Generator()
-    self.markers_and_content += generator.generate()
-    return self
-
-  def set_functions(self):
-    """Generates and sets the function wrappers and bindings."""
-
-    functions_to_bind: dict[str, ast_nodes.FunctionDecl] = {}
-    for name, func in introspect_functions.FUNCTIONS.items():
-      if not function_utils.is_excluded_function_name(name):
-        if name not in _constants.BOUNDCHECK_FUNCS:
-          functions_to_bind[name] = func
-
-    generator = functions.Generator(functions_to_bind)
-    self.markers_and_content += generator.generate()
-    return self
-
-  def to_string(self) -> str:
-    for marker, content in self.markers_and_content:
-      self.content_cc = common.replace_lines_containing_marker(
-          self.content_cc, marker, content
-      )
-    return "".join(self.content_cc)
-
-  def build(self, generated_path_cc: str):
-    common.write_to_file(generated_path_cc, self.to_string())
+from wasm.codegen.generators import binding_builder
 
 
 if __name__ == "__main__":
   template_file = "wasm/codegen/templates/bindings.cc"
   generated_file = "wasm/codegen/generated/bindings.cc"
 
-  builder = BindingBuilder(template_file)
+  builder = binding_builder.BindingBuilder(template_file)
   builder.set_enums()
   builder.set_structs()
   builder.set_functions()