Precompile mojom bindings generator jinja templates.

mojo/public/tools/bindings/mojom.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+mojom_generator_root = "//mojo/public/tools/bindings"
+mojom_generator_script = "$mojom_generator_root/mojom_bindings_generator.py"
+mojom_generator_sources = [
+  "$mojom_generator_root/generators/mojom_cpp_generator.py",
+  "$mojom_generator_root/generators/mojom_js_generator.py",
+  "$mojom_generator_root/generators/mojom_java_generator.py",
+  "$mojom_generator_root/pylib/mojom/__init__.py",
+  "$mojom_generator_root/pylib/mojom/error.py",
+  "$mojom_generator_root/pylib/mojom/generate/__init__.py",
+  "$mojom_generator_root/pylib/mojom/generate/constant_resolver.py",
+  "$mojom_generator_root/pylib/mojom/generate/data.py",
+  "$mojom_generator_root/pylib/mojom/generate/generator.py",
+  "$mojom_generator_root/pylib/mojom/generate/module.py",
+  "$mojom_generator_root/pylib/mojom/generate/pack.py",
+  "$mojom_generator_root/pylib/mojom/generate/template_expander.py",
+  "$mojom_generator_root/pylib/mojom/parse/__init__.py",
+  "$mojom_generator_root/pylib/mojom/parse/ast.py",
+  "$mojom_generator_root/pylib/mojom/parse/lexer.py",
+  "$mojom_generator_root/pylib/mojom/parse/parser.py",
+  "$mojom_generator_root/pylib/mojom/parse/translate.py",
+  "$mojom_generator_script",
+]
+
 # Generate C++/JavaScript/Java source files from mojom files. The output files
 # will go under the generated file directory tree with the same path as each
 # input file.
 #
 # Parameters:
 #
 #   sources (optional if one of the deps sets listed below is present)
 #       List of source .mojom files to compile.
 #
 #   deps (optional)
@@ skipping 22 matching lines @@
 #   visibility (optional)
 template("mojom") {
   assert(
       defined(invoker.sources) || defined(invoker.deps) ||
           defined(invoker.public_deps),
       "\"sources\" or \"deps\" must be defined for the $target_name template.")
 
   cpp_sources_suffix = "cpp_sources"
   cpp_sources_target_name = "${target_name}_${cpp_sources_suffix}"
   if (defined(invoker.sources)) {
-    generator_root = "//mojo/public/tools/bindings"
-    generator_script = "$generator_root/mojom_bindings_generator.py"
-    generator_sources = [
-      generator_script,
-      "$generator_root/generators/cpp_templates/enum_macros.tmpl",
-      "$generator_root/generators/cpp_templates/interface_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/interface_definition.tmpl",
-      "$generator_root/generators/cpp_templates/interface_macros.tmpl",
-      "$generator_root/generators/cpp_templates/interface_proxy_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/interface_request_validator_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/interface_response_validator_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/interface_stub_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/module-internal.h.tmpl",
-      "$generator_root/generators/cpp_templates/module.cc.tmpl",
-      "$generator_root/generators/cpp_templates/module.h.tmpl",
-      "$generator_root/generators/cpp_templates/struct_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/struct_definition.tmpl",
-      "$generator_root/generators/cpp_templates/struct_macros.tmpl",
-      "$generator_root/generators/cpp_templates/struct_serialization_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/struct_serialization_definition.tmpl",
-      "$generator_root/generators/cpp_templates/union_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/union_definition.tmpl",
-      "$generator_root/generators/cpp_templates/union_serialization_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/union_serialization_definition.tmpl",
-      "$generator_root/generators/cpp_templates/validation_macros.tmpl",
-      "$generator_root/generators/cpp_templates/wrapper_class_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/wrapper_class_definition.tmpl",
-      "$generator_root/generators/cpp_templates/wrapper_union_class_declaration.tmpl",
-      "$generator_root/generators/cpp_templates/wrapper_union_class_definition.tmpl",
-      "$generator_root/generators/java_templates/constant_definition.tmpl",
-      "$generator_root/generators/java_templates/constants.java.tmpl",
-      "$generator_root/generators/java_templates/data_types_definition.tmpl",
-      "$generator_root/generators/java_templates/enum_definition.tmpl",
-      "$generator_root/generators/java_templates/enum.java.tmpl",
-      "$generator_root/generators/java_templates/header.java.tmpl",
-      "$generator_root/generators/java_templates/interface_definition.tmpl",
-      "$generator_root/generators/java_templates/interface_internal.java.tmpl",
-      "$generator_root/generators/java_templates/interface.java.tmpl",
-      "$generator_root/generators/java_templates/struct.java.tmpl",
-      "$generator_root/generators/java_templates/union.java.tmpl",
-      "$generator_root/generators/js_templates/enum_definition.tmpl",
-      "$generator_root/generators/js_templates/interface_definition.tmpl",
-      "$generator_root/generators/js_templates/module.amd.tmpl",
-      "$generator_root/generators/js_templates/module_definition.tmpl",
-      "$generator_root/generators/js_templates/struct_definition.tmpl",
-      "$generator_root/generators/js_templates/union_definition.tmpl",
-      "$generator_root/generators/js_templates/validation_macros.tmpl",
-      "$generator_root/generators/mojom_cpp_generator.py",
-      "$generator_root/generators/mojom_js_generator.py",
-      "$generator_root/generators/mojom_java_generator.py",
-      "$generator_root/pylib/mojom/__init__.py",
-      "$generator_root/pylib/mojom/error.py",
-      "$generator_root/pylib/mojom/generate/__init__.py",
-      "$generator_root/pylib/mojom/generate/constant_resolver.py",
-      "$generator_root/pylib/mojom/generate/data.py",
-      "$generator_root/pylib/mojom/generate/generator.py",
-      "$generator_root/pylib/mojom/generate/module.py",
-      "$generator_root/pylib/mojom/generate/pack.py",
-      "$generator_root/pylib/mojom/generate/template_expander.py",
-      "$generator_root/pylib/mojom/parse/__init__.py",
-      "$generator_root/pylib/mojom/parse/ast.py",
-      "$generator_root/pylib/mojom/parse/lexer.py",
-      "$generator_root/pylib/mojom/parse/parser.py",
-      "$generator_root/pylib/mojom/parse/translate.py",
-    ]
     if (defined(invoker.variant)) {
       variant = invoker.variant
       generator_cpp_outputs = [
         "{{source_gen_dir}}/{{source_name_part}}.mojom-${variant}.cc",
         "{{source_gen_dir}}/{{source_name_part}}.mojom-${variant}.h",
         "{{source_gen_dir}}/{{source_name_part}}.mojom-${variant}-internal.h",
       ]
       generator_js_outputs = []
       generator_java_outputs = []
     } else {
       generator_cpp_outputs = [
         "{{source_gen_dir}}/{{source_name_part}}.mojom.cc",
         "{{source_gen_dir}}/{{source_name_part}}.mojom.h",
         "{{source_gen_dir}}/{{source_name_part}}.mojom-internal.h",
       ]
       generator_js_outputs =
           [ "{{source_gen_dir}}/{{source_name_part}}.mojom.js" ]
       generator_java_outputs =
           [ "{{source_gen_dir}}/{{source_name_part}}.mojom.srcjar" ]
     }
   }
 
   if (defined(invoker.sources)) {
     generator_target_name = target_name + "__generator"
     action_foreach(generator_target_name) {
-      script = generator_script
-      inputs = generator_sources
+      script = mojom_generator_script
+      inputs = mojom_generator_sources
       sources = invoker.sources
+      deps = [
+        "//mojo/public/tools/bindings:precompile_templates",
+      ]
       outputs =
           generator_cpp_outputs + generator_java_outputs + generator_js_outputs
       args = [
+        "--use_bundled_pylibs",
+        "generate",
         "{{source}}",
-        "--use_bundled_pylibs",
         "-d",
         rebase_path("//", root_build_dir),
         "-I",
         rebase_path("//", root_build_dir),
         "-o",
         rebase_path(root_gen_dir),
+        "--bytecode_path",
+        rebase_path("$root_gen_dir/mojo/public/tools/bindings"),
       ]
 
       if (defined(invoker.import_dirs)) {
         foreach(import_dir, invoker.import_dirs) {
           args += [
             "-I",
             rebase_path(import_dir, root_build_dir),
           ]
         }
       }
@@ skipping 140 matching lines @@
         # //mojo/something:something and we can append "_java" to get the java
         # dependency name.
         full_name = get_label_info(d, "label_no_toolchain")
         deps += [ "${full_name}_java" ]
       }
 
       srcjar_deps = [ ":$java_srcjar_target_name" ]
     }
   }
 }