Split BUILD.gn into per-subdirectory BUILD.gns

This will allow Tint's dependent to depend on libtint without GN
discovering Tint's test and try to build them. In particular it will
help use Tint in Dawn in Skia's standalone build which doesn't have
//testing.

Bug: dawn:706
Change-Id: Idd28662b89aa75df7704eaae205328dce0b96fef
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/44540
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
diff --git a/BUILD.gn b/BUILD.gn
index d26ae65..39e2371 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -13,1492 +13,21 @@
 # limitations under the License.
 
 import("//build_overrides/build.gni")
-import("//testing/test.gni")
 import("tint_overrides_with_defaults.gni")
 
-###############################################################################
-# Common - Configs, etc. shared across targets
-###############################################################################
-
-config("tint_common_config") {
-  include_dirs = [
-    "${target_gen_dir}",
-    "${tint_root_dir}/",
-    "${tint_spirv_headers_dir}/include",
-    "${tint_spirv_tools_dir}/",
-    "${tint_spirv_tools_dir}/include",
-  ]
+# Temporary group to not break dependents while they rename their Tint GN
+# targets
+group("libtint") {
+  deps = [ "src:libtint" ]
 }
 
-config("tint_public_config") {
-  defines = []
-  if (tint_build_spv_reader) {
-    defines += [ "TINT_BUILD_SPV_READER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_SPV_READER=0" ]
-  }
-
-  if (tint_build_spv_writer) {
-    defines += [ "TINT_BUILD_SPV_WRITER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_SPV_WRITER=0" ]
-  }
-
-  if (tint_build_wgsl_reader) {
-    defines += [ "TINT_BUILD_WGSL_READER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_WGSL_READER=0" ]
-  }
-
-  if (tint_build_wgsl_writer) {
-    defines += [ "TINT_BUILD_WGSL_WRITER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_WGSL_WRITER=0" ]
-  }
-
-  if (tint_build_msl_writer) {
-    defines += [ "TINT_BUILD_MSL_WRITER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_MSL_WRITER=0" ]
-  }
-
-  if (tint_build_hlsl_writer) {
-    defines += [ "TINT_BUILD_HLSL_WRITER=1" ]
-  } else {
-    defines += [ "TINT_BUILD_HLSL_WRITER=0" ]
-  }
-
-  include_dirs = [
-    "${tint_root_dir}/",
-    "${tint_root_dir}/include/",
-    "${tint_spirv_headers_dir}/include",
-  ]
-}
-
-config("tint_config") {
-  include_dirs = []
-  if (tint_build_spv_reader || tint_build_spv_writer) {
-    include_dirs += [ "${tint_spirv_tools_dir}/include/" ]
-  }
-}
-
-###############################################################################
-# Generated - Generated source files
-###############################################################################
-# These are copies of rules from SPIRV-Tools with the names tweaked to be Tint
-# specific. They are needed here because referencing generated files in sibling
-# packages is difficult/impossible in Chromium. Parts of Tint's SPIRV handling
-# code depend on internal parts of SPIRV-Tools. This causes issues because when
-# Tint references the internal headers, since it causes a dependency on these
-# generated files, but they are not visible in the context building Tint. Thus
-# Tint generates its own copy of the generated files. Since they come from the
-# same source of truth, they should not vary.
-
-template("tint_core_tables") {
-  assert(defined(invoker.version), "Need version in $target_name generation.")
-
-  action("tint_core_tables_" + target_name) {
-    script = "${tint_spirv_tools_dir}/utils/generate_grammar_tables.py"
-
-    version = invoker.version
-
-    core_json_file = "${tint_spirv_headers_dir}/include/spirv/$version/spirv.core.grammar.json"
-    core_insts_file = "${target_gen_dir}/core.insts-$version.inc"
-    operand_kinds_file = "${target_gen_dir}/operand.kinds-$version.inc"
-    debuginfo_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
-    cldebuginfo100_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
-
-    sources = [
-      cldebuginfo100_insts_file,
-      core_json_file,
-      debuginfo_insts_file,
-    ]
-    outputs = [
-      core_insts_file,
-      operand_kinds_file,
-    ]
-    args = [
-      "--spirv-core-grammar",
-      rebase_path(core_json_file, root_build_dir),
-      "--core-insts-output",
-      rebase_path(core_insts_file, root_build_dir),
-      "--extinst-debuginfo-grammar",
-      rebase_path(debuginfo_insts_file, root_build_dir),
-      "--extinst-cldebuginfo100-grammar",
-      rebase_path(cldebuginfo100_insts_file, root_build_dir),
-      "--operand-kinds-output",
-      rebase_path(operand_kinds_file, root_build_dir),
-    ]
-  }
-}
-
-template("tint_core_enums") {
-  assert(defined(invoker.version), "Need version in $target_name generation.")
-
-  action("tint_core_enums_" + target_name) {
-    script = "${tint_spirv_tools_dir}/utils/generate_grammar_tables.py"
-
-    version = invoker.version
-
-    core_json_file = "${tint_spirv_headers_dir}/include/spirv/$version/spirv.core.grammar.json"
-    debuginfo_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
-    cldebuginfo100_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
-
-    extension_enum_file = "${target_gen_dir}/extension_enum.inc"
-    extension_map_file = "${target_gen_dir}/enum_string_mapping.inc"
-
-    args = [
-      "--spirv-core-grammar",
-      rebase_path(core_json_file, root_build_dir),
-      "--extinst-debuginfo-grammar",
-      rebase_path(debuginfo_insts_file, root_build_dir),
-      "--extinst-cldebuginfo100-grammar",
-      rebase_path(cldebuginfo100_insts_file, root_build_dir),
-      "--extension-enum-output",
-      rebase_path(extension_enum_file, root_build_dir),
-      "--enum-string-mapping-output",
-      rebase_path(extension_map_file, root_build_dir),
-    ]
-    inputs = [
-      core_json_file,
-      debuginfo_insts_file,
-      cldebuginfo100_insts_file,
-    ]
-    outputs = [
-      extension_enum_file,
-      extension_map_file,
-    ]
-  }
-}
-
-template("tint_language_header") {
-  assert(defined(invoker.name), "Need name in $target_name generation.")
-
-  action("tint_language_header_" + target_name) {
-    script = "${tint_spirv_tools_dir}/utils/generate_language_headers.py"
-
-    name = invoker.name
-    extinst_output_path = "${target_gen_dir}/${name}.h"
-
-    args = [
-      "--extinst-grammar",
-      rebase_path(invoker.grammar_file, root_build_dir),
-      "--extinst-output-path",
-      rebase_path(extinst_output_path, root_build_dir),
-    ]
-    inputs = [ invoker.grammar_file ]
-    outputs = [ "${extinst_output_path}" ]
-  }
-}
-
-tint_core_tables("unified1") {
-  version = "unified1"
-}
-
-tint_core_enums("unified1") {
-  version = "unified1"
-}
-
-tint_language_header("debuginfo") {
-  name = "DebugInfo"
-  grammar_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
-}
-
-tint_language_header("cldebuginfo100") {
-  name = "OpenCLDebugInfo100"
-  grammar_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
-}
-
-###############################################################################
-# Library - Tint core and optional modules of libtint
-###############################################################################
-# libtint source sets are divided into a non-optional core in :libtint_core_src
-# and optional :libtint_*_src subsets, because ninja does not like having
-# multiple source files with the same name, like function.cc, in the same
-# source set
-# target.
-#
-# Targets that want to use tint as a library should depend on ":libtint" and
-# use the build flags to control what is included, instead of trying to specify
-# the subsets that they want.
-
-source_set("libtint_core_src") {
-  sources = [
-    "src/ast/access_control.cc",
-    "src/ast/access_control.h",
-    "src/ast/access_decoration.cc",
-    "src/ast/access_decoration.h",
-    "src/ast/array_accessor_expression.cc",
-    "src/ast/array_accessor_expression.h",
-    "src/ast/assignment_statement.cc",
-    "src/ast/assignment_statement.h",
-    "src/ast/binary_expression.cc",
-    "src/ast/binary_expression.h",
-    "src/ast/binding_decoration.cc",
-    "src/ast/binding_decoration.h",
-    "src/ast/bitcast_expression.cc",
-    "src/ast/bitcast_expression.h",
-    "src/ast/block_statement.cc",
-    "src/ast/block_statement.h",
-    "src/ast/bool_literal.cc",
-    "src/ast/bool_literal.h",
-    "src/ast/break_statement.cc",
-    "src/ast/break_statement.h",
-    "src/ast/builtin.cc",
-    "src/ast/builtin.h",
-    "src/ast/builtin_decoration.cc",
-    "src/ast/builtin_decoration.h",
-    "src/ast/call_expression.cc",
-    "src/ast/call_expression.h",
-    "src/ast/call_statement.cc",
-    "src/ast/call_statement.h",
-    "src/ast/case_statement.cc",
-    "src/ast/case_statement.h",
-    "src/ast/constant_id_decoration.cc",
-    "src/ast/constant_id_decoration.h",
-    "src/ast/constructor_expression.cc",
-    "src/ast/constructor_expression.h",
-    "src/ast/continue_statement.cc",
-    "src/ast/continue_statement.h",
-    "src/ast/decoration.cc",
-    "src/ast/decoration.h",
-    "src/ast/discard_statement.cc",
-    "src/ast/discard_statement.h",
-    "src/ast/else_statement.cc",
-    "src/ast/else_statement.h",
-    "src/ast/expression.cc",
-    "src/ast/expression.h",
-    "src/ast/fallthrough_statement.cc",
-    "src/ast/fallthrough_statement.h",
-    "src/ast/float_literal.cc",
-    "src/ast/float_literal.h",
-    "src/ast/function.cc",
-    "src/ast/function.h",
-    "src/ast/group_decoration.cc",
-    "src/ast/group_decoration.h",
-    "src/ast/identifier_expression.cc",
-    "src/ast/identifier_expression.h",
-    "src/ast/if_statement.cc",
-    "src/ast/if_statement.h",
-    "src/ast/int_literal.cc",
-    "src/ast/int_literal.h",
-    "src/ast/literal.cc",
-    "src/ast/literal.h",
-    "src/ast/location_decoration.cc",
-    "src/ast/location_decoration.h",
-    "src/ast/loop_statement.cc",
-    "src/ast/loop_statement.h",
-    "src/ast/member_accessor_expression.cc",
-    "src/ast/member_accessor_expression.h",
-    "src/ast/module.cc",
-    "src/ast/module.h",
-    "src/ast/node.cc",
-    "src/ast/node.h",
-    "src/ast/null_literal.cc",
-    "src/ast/null_literal.h",
-    "src/ast/pipeline_stage.cc",
-    "src/ast/pipeline_stage.h",
-    "src/ast/return_statement.cc",
-    "src/ast/return_statement.h",
-    "src/ast/scalar_constructor_expression.cc",
-    "src/ast/scalar_constructor_expression.h",
-    "src/ast/sint_literal.cc",
-    "src/ast/sint_literal.h",
-    "src/ast/stage_decoration.cc",
-    "src/ast/stage_decoration.h",
-    "src/ast/statement.cc",
-    "src/ast/statement.h",
-    "src/ast/storage_class.cc",
-    "src/ast/storage_class.h",
-    "src/ast/stride_decoration.cc",
-    "src/ast/stride_decoration.h",
-    "src/ast/struct.cc",
-    "src/ast/struct.h",
-    "src/ast/struct_block_decoration.cc",
-    "src/ast/struct_block_decoration.h",
-    "src/ast/struct_member.cc",
-    "src/ast/struct_member.h",
-    "src/ast/struct_member_offset_decoration.cc",
-    "src/ast/struct_member_offset_decoration.h",
-    "src/ast/switch_statement.cc",
-    "src/ast/switch_statement.h",
-    "src/ast/type_constructor_expression.cc",
-    "src/ast/type_constructor_expression.h",
-    "src/ast/uint_literal.cc",
-    "src/ast/uint_literal.h",
-    "src/ast/unary_op.cc",
-    "src/ast/unary_op.h",
-    "src/ast/unary_op_expression.cc",
-    "src/ast/unary_op_expression.h",
-    "src/ast/variable.cc",
-    "src/ast/variable.h",
-    "src/ast/variable_decl_statement.cc",
-    "src/ast/variable_decl_statement.h",
-    "src/ast/workgroup_decoration.cc",
-    "src/ast/workgroup_decoration.h",
-    "src/block_allocator.h",
-    "src/castable.cc",
-    "src/castable.h",
-    "src/clone_context.cc",
-    "src/clone_context.h",
-    "src/debug.cc",
-    "src/debug.h",
-    "src/demangler.cc",
-    "src/demangler.h",
-    "src/diagnostic/diagnostic.cc",
-    "src/diagnostic/diagnostic.h",
-    "src/diagnostic/formatter.cc",
-    "src/diagnostic/formatter.h",
-    "src/diagnostic/printer.cc",
-    "src/diagnostic/printer.h",
-    "src/inspector/entry_point.cc",
-    "src/inspector/entry_point.h",
-    "src/inspector/inspector.cc",
-    "src/inspector/inspector.h",
-    "src/inspector/scalar.cc",
-    "src/inspector/scalar.h",
-    "src/intrinsic_table.cc",
-    "src/intrinsic_table.h",
-    "src/program.cc",
-    "src/program.h",
-    "src/program_builder.cc",
-    "src/program_builder.h",
-    "src/reader/reader.cc",
-    "src/reader/reader.h",
-    "src/resolver/resolver.cc",
-    "src/resolver/resolver.h",
-    "src/scope_stack.h",
-    "src/semantic/call.h",
-    "src/semantic/expression.h",
-    "src/semantic/info.h",
-    "src/semantic/intrinsic.h",
-    "src/semantic/node.h",
-    "src/semantic/sem_call.cc",
-    "src/semantic/sem_call_target.cc",
-    "src/semantic/sem_expression.cc",
-    "src/semantic/sem_function.cc",
-    "src/semantic/sem_info.cc",
-    "src/semantic/sem_intrinsic.cc",
-    "src/semantic/sem_member_accessor_expression.cc",
-    "src/semantic/sem_node.cc",
-    "src/semantic/sem_statement.cc",
-    "src/semantic/sem_variable.cc",
-    "src/semantic/type_mappings.h",
-    "src/source.cc",
-    "src/source.h",
-    "src/symbol.cc",
-    "src/symbol.h",
-    "src/symbol_table.cc",
-    "src/symbol_table.h",
-    "src/traits.h",
-    "src/transform/bound_array_accessors.cc",
-    "src/transform/bound_array_accessors.h",
-    "src/transform/emit_vertex_point_size.cc",
-    "src/transform/emit_vertex_point_size.h",
-    "src/transform/first_index_offset.cc",
-    "src/transform/first_index_offset.h",
-    "src/transform/manager.cc",
-    "src/transform/manager.h",
-    "src/transform/renamer.cc",
-    "src/transform/renamer.h",
-    "src/transform/transform.cc",
-    "src/transform/transform.h",
-    "src/transform/vertex_pulling.cc",
-    "src/transform/vertex_pulling.h",
-    "src/type/access_control_type.cc",
-    "src/type/access_control_type.h",
-    "src/type/alias_type.cc",
-    "src/type/alias_type.h",
-    "src/type/array_type.cc",
-    "src/type/array_type.h",
-    "src/type/bool_type.cc",
-    "src/type/bool_type.h",
-    "src/type/depth_texture_type.cc",
-    "src/type/depth_texture_type.h",
-    "src/type/f32_type.cc",
-    "src/type/f32_type.h",
-    "src/type/i32_type.cc",
-    "src/type/i32_type.h",
-    "src/type/matrix_type.cc",
-    "src/type/matrix_type.h",
-    "src/type/multisampled_texture_type.cc",
-    "src/type/multisampled_texture_type.h",
-    "src/type/pointer_type.cc",
-    "src/type/pointer_type.h",
-    "src/type/sampled_texture_type.cc",
-    "src/type/sampled_texture_type.h",
-    "src/type/sampler_type.cc",
-    "src/type/sampler_type.h",
-    "src/type/storage_texture_type.cc",
-    "src/type/storage_texture_type.h",
-    "src/type/struct_type.cc",
-    "src/type/struct_type.h",
-    "src/type/texture_type.cc",
-    "src/type/texture_type.h",
-    "src/type/type.cc",
-    "src/type/type.h",
-    "src/type/type_manager.cc",
-    "src/type/type_manager.h",
-    "src/type/u32_type.cc",
-    "src/type/u32_type.h",
-    "src/type/vector_type.cc",
-    "src/type/vector_type.h",
-    "src/type/void_type.cc",
-    "src/type/void_type.h",
-    "src/utils/unique_vector.h",
-    "src/validator/validator.cc",
-    "src/validator/validator.h",
-    "src/validator/validator_impl.cc",
-    "src/validator/validator_impl.h",
-    "src/writer/append_vector.cc",
-    "src/writer/append_vector.h",
-    "src/writer/float_to_string.cc",
-    "src/writer/float_to_string.h",
-    "src/writer/text.cc",
-    "src/writer/text.h",
-    "src/writer/text_generator.cc",
-    "src/writer/text_generator.h",
-    "src/writer/writer.cc",
-    "src/writer/writer.h",
-  ]
-
-  if (is_linux) {
-    sources += [ "src/diagnostic/printer_linux.cc" ]
-  } else if (is_win) {
-    sources += [ "src/diagnostic/printer_windows.cc" ]
-  } else {
-    sources += [ "src/diagnostic/printer_other.cc" ]
-  }
-
-  public_deps = [
-    ":tint_core_enums_unified1",
-    ":tint_core_tables_unified1",
-    ":tint_language_header_cldebuginfo100",
-    ":tint_language_header_debuginfo",
-    "${tint_spirv_headers_dir}:spv_headers",
-    "${tint_spirv_tools_dir}:spvtools_headers",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-}
-
-source_set("libtint_spv_reader_src") {
-  sources = [
-    "src/reader/spirv/construct.cc",
-    "src/reader/spirv/construct.h",
-    "src/reader/spirv/entry_point_info.h",
-    "src/reader/spirv/enum_converter.cc",
-    "src/reader/spirv/enum_converter.h",
-    "src/reader/spirv/fail_stream.h",
-    "src/reader/spirv/function.cc",
-    "src/reader/spirv/function.h",
-    "src/reader/spirv/namer.cc",
-    "src/reader/spirv/namer.h",
-    "src/reader/spirv/parser.cc",
-    "src/reader/spirv/parser.h",
-    "src/reader/spirv/parser_impl.cc",
-    "src/reader/spirv/parser_impl.h",
-    "src/reader/spirv/usage.cc",
-    "src/reader/spirv/usage.h",
-  ]
-
-  deps = [
-    ":tint_core_enums_unified1",
-    ":tint_core_tables_unified1",
-    ":tint_language_header_cldebuginfo100",
-    ":tint_language_header_debuginfo",
-    "${tint_spirv_tools_dir}/:spvtools",
-    "${tint_spirv_tools_dir}/:spvtools_opt",
-    "${tint_spirv_tools_dir}/:spvtools_val",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint_spv_writer_src") {
-  sources = [
-    "src/transform/spirv.cc",
-    "src/transform/spirv.h",
-    "src/writer/spirv/binary_writer.cc",
-    "src/writer/spirv/binary_writer.h",
-    "src/writer/spirv/builder.cc",
-    "src/writer/spirv/builder.h",
-    "src/writer/spirv/function.cc",
-    "src/writer/spirv/function.h",
-    "src/writer/spirv/generator.cc",
-    "src/writer/spirv/generator.h",
-    "src/writer/spirv/instruction.cc",
-    "src/writer/spirv/instruction.h",
-    "src/writer/spirv/operand.cc",
-    "src/writer/spirv/operand.h",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint_wgsl_reader_src") {
-  sources = [
-    "src/reader/wgsl/lexer.cc",
-    "src/reader/wgsl/lexer.h",
-    "src/reader/wgsl/parser.cc",
-    "src/reader/wgsl/parser.h",
-    "src/reader/wgsl/parser_impl.cc",
-    "src/reader/wgsl/parser_impl.h",
-    "src/reader/wgsl/parser_impl_detail.h",
-    "src/reader/wgsl/token.cc",
-    "src/reader/wgsl/token.h",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint_wgsl_writer_src") {
-  sources = [
-    "src/writer/wgsl/generator.cc",
-    "src/writer/wgsl/generator.h",
-    "src/writer/wgsl/generator_impl.cc",
-    "src/writer/wgsl/generator_impl.h",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint_msl_writer_src") {
-  sources = [
-    "src/transform/msl.cc",
-    "src/transform/msl.h",
-    "src/writer/msl/generator.cc",
-    "src/writer/msl/generator.h",
-    "src/writer/msl/generator_impl.cc",
-    "src/writer/msl/generator_impl.h",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint_hlsl_writer_src") {
-  sources = [
-    "src/transform/hlsl.cc",
-    "src/transform/hlsl.h",
-    "src/writer/hlsl/generator.cc",
-    "src/writer/hlsl/generator.h",
-    "src/writer/hlsl/generator_impl.cc",
-    "src/writer/hlsl/generator_impl.h",
-    "src/writer/hlsl/namer.cc",
-    "src/writer/hlsl/namer.h",
-  ]
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  public_deps = [ ":libtint_core_src" ]
-}
-
-source_set("libtint") {
-  public_deps = [ ":libtint_core_src" ]
-
-  if (tint_build_spv_reader) {
-    public_deps += [ ":libtint_spv_reader_src" ]
-  }
-
-  if (tint_build_spv_writer) {
-    public_deps += [ ":libtint_spv_writer_src" ]
-  }
-
-  if (tint_build_wgsl_reader) {
-    public_deps += [ ":libtint_wgsl_reader_src" ]
-  }
-
-  if (tint_build_wgsl_writer) {
-    public_deps += [ ":libtint_wgsl_writer_src" ]
-  }
-
-  if (tint_build_msl_writer) {
-    public_deps += [ ":libtint_msl_writer_src" ]
-  }
-
-  if (tint_build_hlsl_writer) {
-    public_deps += [ ":libtint_hlsl_writer_src" ]
-  }
-
-  configs += [ ":tint_common_config" ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-}
-
-###############################################################################
-# Gtest Gmock - Handle building inside and outside of Chromium.
-###############################################################################
-# When building outside of Chromium we need to define our own targets for GTest
-# and GMock. However when compiling inside of Chromium we need to reuse the
-# existing targets, both because Chromium has a special harness for swarming
-# and because otherwise the "gn check" fails.
-
-if (!build_with_chromium) {
-  # When we aren't in Chromium we define out own targets based on the location
-  # of the googletest repo.
-  config("gtest_config") {
-    include_dirs = [
-      "${tint_googletest_dir}/googletest",
-      "${tint_googletest_dir}/googletest/include",
-    ]
-  }
-  static_library("gtest") {
-    testonly = true
-    sources = [ "${tint_googletest_dir}/googletest/src/gtest-all.cc" ]
-    public_configs = [ ":gtest_config" ]
-  }
-
-  config("gmock_config") {
-    include_dirs = [
-      "${tint_googletest_dir}/googlemock",
-      "${tint_googletest_dir}/googlemock/include",
-      "${tint_googletest_dir}/googletest/include",
-    ]
-  }
-
-  static_library("gmock") {
-    testonly = true
-    sources = [
-      "${tint_googletest_dir}/googlemock/src/gmock-all.cc",
-    ]
-    public_configs = [ ":gmock_config" ]
-  }
-
-  group("gmock_and_gtest") {
-    testonly = true
-    public_deps = [
-      ":gmock",
-      ":gtest",
-    ]
-  }
-} else {
-  # When we are in Chromium we reuse its targets, and also add some deps that
-  # are needed to launch the test in swarming mode.
-  group("gmock_and_gtest") {
-    testonly = true
-    public_deps = [
-      "//base",
-      "//base/test:test_support",
-      "//testing/gmock",
-      "//testing/gtest",
-      "//third_party/googletest:gmock",
-    ]
-  }
-}
-
-###############################################################################
-# Wrapping of Chromium targets
-###############################################################################
-# These targets are separated because they are Chromium sources files that
-# can't use the tint_internal config, otherwise Tint's warning flags get
-# applied while compiling a bunch of Chromium's //base (via header inclusion)
-source_set("tint_unittests_main") {
+# This target is built when no specific target is specified on the command line.
+group("default") {
   testonly = true
-  deps = [ ":gmock_and_gtest" ]
-  if (build_with_chromium) {
-    sources = [ "//gpu/tint_unittests_main.cc" ]
-  } else {
-    sources = [ "src/test_main.cc" ]
-  }
-}
-
-###############################################################################
-# Tests - For libtint core and optional modules
-###############################################################################
-config("tint_unittests_config") {
-  include_dirs = [
-    "${tint_googletest_dir}/googlemock/include",
-    "${tint_googletest_dir}/googletest/include",
-  ]
-}
-
-source_set("tint_unittests_core_src") {
-  sources = [
-    "src/ast/access_decoration_test.cc",
-    "src/ast/array_accessor_expression_test.cc",
-    "src/ast/assignment_statement_test.cc",
-    "src/ast/binary_expression_test.cc",
-    "src/ast/binding_decoration_test.cc",
-    "src/ast/bitcast_expression_test.cc",
-    "src/ast/block_statement_test.cc",
-    "src/ast/bool_literal_test.cc",
-    "src/ast/break_statement_test.cc",
-    "src/ast/builtin_decoration_test.cc",
-    "src/ast/call_expression_test.cc",
-    "src/ast/call_statement_test.cc",
-    "src/ast/case_statement_test.cc",
-    "src/ast/constant_id_decoration_test.cc",
-    "src/ast/continue_statement_test.cc",
-    "src/ast/discard_statement_test.cc",
-    "src/ast/else_statement_test.cc",
-    "src/ast/fallthrough_statement_test.cc",
-    "src/ast/float_literal_test.cc",
-    "src/ast/function_test.cc",
-    "src/ast/group_decoration_test.cc",
-    "src/ast/identifier_expression_test.cc",
-    "src/ast/if_statement_test.cc",
-    "src/ast/int_literal_test.cc",
-    "src/ast/intrinsic_texture_helper_test.cc",
-    "src/ast/intrinsic_texture_helper_test.h",
-    "src/ast/location_decoration_test.cc",
-    "src/ast/loop_statement_test.cc",
-    "src/ast/member_accessor_expression_test.cc",
-    "src/ast/module_clone_test.cc",
-    "src/ast/module_test.cc",
-    "src/ast/null_literal_test.cc",
-    "src/ast/return_statement_test.cc",
-    "src/ast/scalar_constructor_expression_test.cc",
-    "src/ast/sint_literal_test.cc",
-    "src/ast/stage_decoration_test.cc",
-    "src/ast/stride_decoration_test.cc",
-    "src/ast/struct_member_offset_decoration_test.cc",
-    "src/ast/struct_member_test.cc",
-    "src/ast/struct_test.cc",
-    "src/ast/switch_statement_test.cc",
-    "src/ast/test_helper.h",
-    "src/ast/type_constructor_expression_test.cc",
-    "src/ast/uint_literal_test.cc",
-    "src/ast/unary_op_expression_test.cc",
-    "src/ast/variable_decl_statement_test.cc",
-    "src/ast/variable_test.cc",
-    "src/ast/workgroup_decoration_test.cc",
-    "src/block_allocator_test.cc",
-    "src/castable_test.cc",
-    "src/clone_context_test.cc",
-    "src/debug_test.cc",
-    "src/demangler_test.cc",
-    "src/diagnostic/formatter_test.cc",
-    "src/diagnostic/printer_test.cc",
-    "src/inspector/inspector_test.cc",
-    "src/intrinsic_table_test.cc",
-    "src/program_builder_test.cc",
-    "src/program_test.cc",
-    "src/resolver/intrinsic_test.cc",
-    "src/resolver/resolver_test_helper.cc",
-    "src/resolver/resolver_test_helper.h",
-    "src/resolver/resolver_test.cc",
-    "src/resolver/validation_test.cc",
-    "src/semantic/sem_intrinsic_test.cc",
-    "src/scope_stack_test.cc",
-    "src/symbol_table_test.cc",
-    "src/symbol_test.cc",
-    "src/traits_test.cc",
-    "src/transform/bound_array_accessors_test.cc",
-    "src/transform/emit_vertex_point_size_test.cc",
-    "src/transform/first_index_offset_test.cc",
-    "src/transform/renamer_test.cc",
-    "src/transform/test_helper.h",
-    "src/transform/vertex_pulling_test.cc",
-    "src/type/access_control_type_test.cc",
-    "src/type/alias_type_test.cc",
-    "src/type/array_type_test.cc",
-    "src/type/bool_type_test.cc",
-    "src/type/depth_texture_type_test.cc",
-    "src/type/f32_type_test.cc",
-    "src/type/i32_type_test.cc",
-    "src/type/matrix_type_test.cc",
-    "src/type/multisampled_texture_type_test.cc",
-    "src/type/pointer_type_test.cc",
-    "src/type/sampled_texture_type_test.cc",
-    "src/type/sampler_type_test.cc",
-    "src/type/storage_texture_type_test.cc",
-    "src/type/struct_type_test.cc",
-    "src/type/texture_type_test.cc",
-    "src/type/type_manager_test.cc",
-    "src/type/u32_type_test.cc",
-    "src/type/vector_type_test.cc",
-    "src/utils/command_test.cc",
-    "src/utils/command.h",
-    "src/utils/tmpfile_test.cc",
-    "src/utils/tmpfile.h",
-    "src/utils/unique_vector_test.cc",
-    "src/validator/validator_builtins_test.cc",
-    "src/validator/validator_control_block_test.cc",
-    "src/validator/validator_decoration_test.cc",
-    "src/validator/validator_function_test.cc",
-    "src/validator/validator_test.cc",
-    "src/validator/validator_test_helper.cc",
-    "src/validator/validator_test_helper.h",
-    "src/writer/float_to_string_test.cc",
-  ]
-
-  if (is_linux || is_mac) {
-    sources += [ "src/utils/command_posix.cc" ]
-    sources += [ "src/utils/tmpfile_posix.cc" ]
-  } else if (is_win) {
-    sources += [ "src/utils/command_windows.cc" ]
-    sources += [ "src/utils/tmpfile_windows.cc" ]
-  } else {
-    sources += [ "src/utils/command_other.cc" ]
-    sources += [ "src/utils/tmpfile_other.cc" ]
-  }
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
   deps = [
-    ":gmock_and_gtest",
-    ":libtint_core_src",
-    ":libtint_wgsl_reader_src",
-    ":libtint_wgsl_writer_src",
+    "fuzzers",
+    "samples:tint",
+    "src:libtint",
+    "test:tint_unittests",
   ]
 }
-
-source_set("tint_unittests_spv_reader_src") {
-  sources = [
-    "src/reader/spirv/enum_converter_test.cc",
-    "src/reader/spirv/fail_stream_test.cc",
-    "src/reader/spirv/function_arithmetic_test.cc",
-    "src/reader/spirv/function_bit_test.cc",
-    "src/reader/spirv/function_call_test.cc",
-    "src/reader/spirv/function_cfg_test.cc",
-    "src/reader/spirv/function_composite_test.cc",
-    "src/reader/spirv/function_conversion_test.cc",
-    "src/reader/spirv/function_decl_test.cc",
-    "src/reader/spirv/function_glsl_std_450_test.cc",
-    "src/reader/spirv/function_logical_test.cc",
-    "src/reader/spirv/function_memory_test.cc",
-    "src/reader/spirv/function_misc_test.cc",
-    "src/reader/spirv/function_var_test.cc",
-    "src/reader/spirv/namer_test.cc",
-    "src/reader/spirv/parser_impl_convert_member_decoration_test.cc",
-    "src/reader/spirv/parser_impl_convert_type_test.cc",
-    "src/reader/spirv/parser_impl_function_decl_test.cc",
-    "src/reader/spirv/parser_impl_get_decorations_test.cc",
-    "src/reader/spirv/parser_impl_handle_test.cc",
-    "src/reader/spirv/parser_impl_import_test.cc",
-    "src/reader/spirv/parser_impl_module_var_test.cc",
-    "src/reader/spirv/parser_impl_named_types_test.cc",
-    "src/reader/spirv/parser_impl_test.cc",
-    "src/reader/spirv/parser_impl_user_name_test.cc",
-    "src/reader/spirv/parser_test.cc",
-    "src/reader/spirv/spirv_tools_helpers_test.cc",
-    "src/reader/spirv/spirv_tools_helpers_test.h",
-    "src/reader/spirv/usage_test.cc",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_spv_reader_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_spv_writer_src") {
-  sources = [
-    "src/transform/spirv_test.cc",
-    "src/writer/spirv/binary_writer_test.cc",
-    "src/writer/spirv/builder_accessor_expression_test.cc",
-    "src/writer/spirv/builder_assign_test.cc",
-    "src/writer/spirv/builder_binary_expression_test.cc",
-    "src/writer/spirv/builder_bitcast_expression_test.cc",
-    "src/writer/spirv/builder_block_test.cc",
-    "src/writer/spirv/builder_call_test.cc",
-    "src/writer/spirv/builder_constructor_expression_test.cc",
-    "src/writer/spirv/builder_discard_test.cc",
-    "src/writer/spirv/builder_entry_point_test.cc",
-    "src/writer/spirv/builder_format_conversion_test.cc",
-    "src/writer/spirv/builder_function_decoration_test.cc",
-    "src/writer/spirv/builder_function_test.cc",
-    "src/writer/spirv/builder_function_variable_test.cc",
-    "src/writer/spirv/builder_global_variable_test.cc",
-    "src/writer/spirv/builder_ident_expression_test.cc",
-    "src/writer/spirv/builder_if_test.cc",
-    "src/writer/spirv/builder_intrinsic_test.cc",
-    "src/writer/spirv/builder_intrinsic_texture_test.cc",
-    "src/writer/spirv/builder_literal_test.cc",
-    "src/writer/spirv/builder_loop_test.cc",
-    "src/writer/spirv/builder_return_test.cc",
-    "src/writer/spirv/builder_switch_test.cc",
-    "src/writer/spirv/builder_test.cc",
-    "src/writer/spirv/builder_type_test.cc",
-    "src/writer/spirv/builder_unary_op_expression_test.cc",
-    "src/writer/spirv/instruction_test.cc",
-    "src/writer/spirv/operand_test.cc",
-    "src/writer/spirv/spv_dump.cc",
-    "src/writer/spirv/spv_dump.h",
-    "src/writer/spirv/test_helper.h",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_spv_writer_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_wgsl_reader_src") {
-  sources = [
-    "src/reader/wgsl/lexer_test.cc",
-    "src/reader/wgsl/parser_impl_additive_expression_test.cc",
-    "src/reader/wgsl/parser_impl_and_expression_test.cc",
-    "src/reader/wgsl/parser_impl_argument_expression_list_test.cc",
-    "src/reader/wgsl/parser_impl_assignment_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_body_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_break_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_bug_cases_test.cc",
-    "src/reader/wgsl/parser_impl_call_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_case_body_test.cc",
-    "src/reader/wgsl/parser_impl_const_expr_test.cc",
-    "src/reader/wgsl/parser_impl_const_literal_test.cc",
-    "src/reader/wgsl/parser_impl_continue_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_continuing_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_depth_texture_type_test.cc",
-    "src/reader/wgsl/parser_impl_else_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_elseif_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_equality_expression_test.cc",
-    "src/reader/wgsl/parser_impl_error_msg_test.cc",
-    "src/reader/wgsl/parser_impl_error_resync_test.cc",
-    "src/reader/wgsl/parser_impl_exclusive_or_expression_test.cc",
-    "src/reader/wgsl/parser_impl_for_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_function_decl_test.cc",
-    "src/reader/wgsl/parser_impl_function_decoration_list_test.cc",
-    "src/reader/wgsl/parser_impl_function_decoration_test.cc",
-    "src/reader/wgsl/parser_impl_function_header_test.cc",
-    "src/reader/wgsl/parser_impl_function_type_decl_test.cc",
-    "src/reader/wgsl/parser_impl_global_constant_decl_test.cc",
-    "src/reader/wgsl/parser_impl_global_decl_test.cc",
-    "src/reader/wgsl/parser_impl_global_variable_decl_test.cc",
-    "src/reader/wgsl/parser_impl_if_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_image_storage_type_test.cc",
-    "src/reader/wgsl/parser_impl_inclusive_or_expression_test.cc",
-    "src/reader/wgsl/parser_impl_logical_and_expression_test.cc",
-    "src/reader/wgsl/parser_impl_logical_or_expression_test.cc",
-    "src/reader/wgsl/parser_impl_loop_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_multiplicative_expression_test.cc",
-    "src/reader/wgsl/parser_impl_param_list_test.cc",
-    "src/reader/wgsl/parser_impl_paren_rhs_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_pipeline_stage_test.cc",
-    "src/reader/wgsl/parser_impl_postfix_expression_test.cc",
-    "src/reader/wgsl/parser_impl_primary_expression_test.cc",
-    "src/reader/wgsl/parser_impl_relational_expression_test.cc",
-    "src/reader/wgsl/parser_impl_sampled_texture_type_test.cc",
-    "src/reader/wgsl/parser_impl_sampler_type_test.cc",
-    "src/reader/wgsl/parser_impl_shift_expression_test.cc",
-    "src/reader/wgsl/parser_impl_statement_test.cc",
-    "src/reader/wgsl/parser_impl_statements_test.cc",
-    "src/reader/wgsl/parser_impl_storage_class_test.cc",
-    "src/reader/wgsl/parser_impl_storage_texture_type_test.cc",
-    "src/reader/wgsl/parser_impl_struct_body_decl_test.cc",
-    "src/reader/wgsl/parser_impl_struct_decl_test.cc",
-    "src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc",
-    "src/reader/wgsl/parser_impl_struct_decoration_test.cc",
-    "src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc",
-    "src/reader/wgsl/parser_impl_struct_member_decoration_test.cc",
-    "src/reader/wgsl/parser_impl_struct_member_test.cc",
-    "src/reader/wgsl/parser_impl_switch_body_test.cc",
-    "src/reader/wgsl/parser_impl_switch_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_test.cc",
-    "src/reader/wgsl/parser_impl_test_helper.cc",
-    "src/reader/wgsl/parser_impl_test_helper.h",
-    "src/reader/wgsl/parser_impl_texture_sampler_types_test.cc",
-    "src/reader/wgsl/parser_impl_type_alias_test.cc",
-    "src/reader/wgsl/parser_impl_type_decl_test.cc",
-    "src/reader/wgsl/parser_impl_unary_expression_test.cc",
-    "src/reader/wgsl/parser_impl_variable_decl_test.cc",
-    "src/reader/wgsl/parser_impl_variable_decoration_list_test.cc",
-    "src/reader/wgsl/parser_impl_variable_decoration_test.cc",
-    "src/reader/wgsl/parser_impl_variable_ident_decl_test.cc",
-    "src/reader/wgsl/parser_impl_variable_stmt_test.cc",
-    "src/reader/wgsl/parser_impl_variable_storage_decoration_test.cc",
-    "src/reader/wgsl/parser_test.cc",
-    "src/reader/wgsl/token_test.cc",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_wgsl_reader_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_wgsl_writer_src") {
-  sources = [
-    "src/writer/wgsl/generator_impl_alias_type_test.cc",
-    "src/writer/wgsl/generator_impl_array_accessor_test.cc",
-    "src/writer/wgsl/generator_impl_assign_test.cc",
-    "src/writer/wgsl/generator_impl_binary_test.cc",
-    "src/writer/wgsl/generator_impl_bitcast_test.cc",
-    "src/writer/wgsl/generator_impl_block_test.cc",
-    "src/writer/wgsl/generator_impl_break_test.cc",
-    "src/writer/wgsl/generator_impl_call_test.cc",
-    "src/writer/wgsl/generator_impl_case_test.cc",
-    "src/writer/wgsl/generator_impl_cast_test.cc",
-    "src/writer/wgsl/generator_impl_constructor_test.cc",
-    "src/writer/wgsl/generator_impl_continue_test.cc",
-    "src/writer/wgsl/generator_impl_discard_test.cc",
-    "src/writer/wgsl/generator_impl_entry_point_test.cc",
-    "src/writer/wgsl/generator_impl_fallthrough_test.cc",
-    "src/writer/wgsl/generator_impl_function_test.cc",
-    "src/writer/wgsl/generator_impl_global_decl_test.cc",
-    "src/writer/wgsl/generator_impl_identifier_test.cc",
-    "src/writer/wgsl/generator_impl_if_test.cc",
-    "src/writer/wgsl/generator_impl_loop_test.cc",
-    "src/writer/wgsl/generator_impl_member_accessor_test.cc",
-    "src/writer/wgsl/generator_impl_return_test.cc",
-    "src/writer/wgsl/generator_impl_switch_test.cc",
-    "src/writer/wgsl/generator_impl_test.cc",
-    "src/writer/wgsl/generator_impl_type_test.cc",
-    "src/writer/wgsl/generator_impl_unary_op_test.cc",
-    "src/writer/wgsl/generator_impl_variable_decl_statement_test.cc",
-    "src/writer/wgsl/generator_impl_variable_test.cc",
-    "src/writer/wgsl/test_helper.h",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_wgsl_writer_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_msl_writer_src") {
-  sources = [
-    "src/transform/msl_test.cc",
-    "src/writer/msl/generator_impl_alias_type_test.cc",
-    "src/writer/msl/generator_impl_array_accessor_test.cc",
-    "src/writer/msl/generator_impl_assign_test.cc",
-    "src/writer/msl/generator_impl_binary_test.cc",
-    "src/writer/msl/generator_impl_bitcast_test.cc",
-    "src/writer/msl/generator_impl_block_test.cc",
-    "src/writer/msl/generator_impl_break_test.cc",
-    "src/writer/msl/generator_impl_call_test.cc",
-    "src/writer/msl/generator_impl_case_test.cc",
-    "src/writer/msl/generator_impl_cast_test.cc",
-    "src/writer/msl/generator_impl_constructor_test.cc",
-    "src/writer/msl/generator_impl_continue_test.cc",
-    "src/writer/msl/generator_impl_discard_test.cc",
-    "src/writer/msl/generator_impl_function_entry_point_data_test.cc",
-    "src/writer/msl/generator_impl_function_test.cc",
-    "src/writer/msl/generator_impl_identifier_test.cc",
-    "src/writer/msl/generator_impl_if_test.cc",
-    "src/writer/msl/generator_impl_import_test.cc",
-    "src/writer/msl/generator_impl_intrinsic_test.cc",
-    "src/writer/msl/generator_impl_intrinsic_texture_test.cc",
-    "src/writer/msl/generator_impl_loop_test.cc",
-    "src/writer/msl/generator_impl_member_accessor_test.cc",
-    "src/writer/msl/generator_impl_module_constant_test.cc",
-    "src/writer/msl/generator_impl_return_test.cc",
-    "src/writer/msl/generator_impl_switch_test.cc",
-    "src/writer/msl/generator_impl_test.cc",
-    "src/writer/msl/generator_impl_type_test.cc",
-    "src/writer/msl/generator_impl_unary_op_test.cc",
-    "src/writer/msl/generator_impl_variable_decl_statement_test.cc",
-    "src/writer/msl/test_helper.h",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_msl_writer_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_hlsl_writer_src") {
-  sources = [
-    "src/transform/hlsl_test.cc",
-    "src/writer/hlsl/generator_impl_alias_type_test.cc",
-    "src/writer/hlsl/generator_impl_array_accessor_test.cc",
-    "src/writer/hlsl/generator_impl_assign_test.cc",
-    "src/writer/hlsl/generator_impl_binary_test.cc",
-    "src/writer/hlsl/generator_impl_bitcast_test.cc",
-    "src/writer/hlsl/generator_impl_block_test.cc",
-    "src/writer/hlsl/generator_impl_break_test.cc",
-    "src/writer/hlsl/generator_impl_call_test.cc",
-    "src/writer/hlsl/generator_impl_case_test.cc",
-    "src/writer/hlsl/generator_impl_cast_test.cc",
-    "src/writer/hlsl/generator_impl_constructor_test.cc",
-    "src/writer/hlsl/generator_impl_continue_test.cc",
-    "src/writer/hlsl/generator_impl_discard_test.cc",
-    "src/writer/hlsl/generator_impl_function_entry_point_data_test.cc",
-    "src/writer/hlsl/generator_impl_function_test.cc",
-    "src/writer/hlsl/generator_impl_identifier_test.cc",
-    "src/writer/hlsl/generator_impl_if_test.cc",
-    "src/writer/hlsl/generator_impl_import_test.cc",
-    "src/writer/hlsl/generator_impl_intrinsic_test.cc",
-    "src/writer/hlsl/generator_impl_intrinsic_texture_test.cc",
-    "src/writer/hlsl/generator_impl_loop_test.cc",
-    "src/writer/hlsl/generator_impl_member_accessor_test.cc",
-    "src/writer/hlsl/generator_impl_module_constant_test.cc",
-    "src/writer/hlsl/generator_impl_return_test.cc",
-    "src/writer/hlsl/generator_impl_sanitizer_test.cc",
-    "src/writer/hlsl/generator_impl_switch_test.cc",
-    "src/writer/hlsl/generator_impl_test.cc",
-    "src/writer/hlsl/generator_impl_type_test.cc",
-    "src/writer/hlsl/generator_impl_unary_op_test.cc",
-    "src/writer/hlsl/generator_impl_variable_decl_statement_test.cc",
-    "src/writer/hlsl/namer_test.cc",
-    "src/writer/hlsl/test_helper.cc",
-    "src/writer/hlsl/test_helper.h",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-
-  deps = [
-    ":gmock_and_gtest",
-    ":libtint_hlsl_writer_src",
-    ":tint_unittests_core_src",
-  ]
-}
-
-source_set("tint_unittests_src") {
-  testonly = true
-
-  deps = [ ":tint_unittests_core_src" ]
-
-  if (tint_build_spv_reader) {
-    deps += [ ":tint_unittests_spv_reader_src" ]
-  }
-
-  if (tint_build_spv_writer) {
-    deps += [ ":tint_unittests_spv_writer_src" ]
-  }
-
-  if (tint_build_wgsl_reader) {
-    deps += [ ":tint_unittests_wgsl_reader_src" ]
-  }
-
-  if (tint_build_wgsl_writer) {
-    deps += [ ":tint_unittests_wgsl_writer_src" ]
-  }
-
-  if (tint_build_msl_writer) {
-    deps += [ ":tint_unittests_msl_writer_src" ]
-  }
-
-  if (tint_build_hlsl_writer) {
-    deps += [ ":tint_unittests_hlsl_writer_src" ]
-  }
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-}
-
-test("tint_unittests") {
-  deps = [
-    ":gmock_and_gtest",
-    ":tint_unittests_src",
-    "${tint_spirv_tools_dir}/:spvtools",
-    "${tint_spirv_tools_dir}/:spvtools_opt",
-    "${tint_spirv_tools_dir}/:spvtools_val",
-  ]
-
-  deps += [ ":tint_unittests_main" ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_unittests_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-
-  testonly = true
-}
-
-###############################################################################
-# Fuzzers - Libfuzzer based fuzzing targets for Chromium
-###############################################################################
-# To run the fuzzers outside of Chromium, use the CMake based builds.
-
-if (build_with_chromium) {
-  import("//testing/libfuzzer/fuzzer_test.gni")
-
-  # fuzzer_test doesn't have configs members, so need to define them in an empty
-  # source_set.
-
-  source_set("tint_fuzzer_common") {
-    public_configs = [
-      ":tint_config",
-      ":tint_common_config",
-      ":tint_public_config",
-    ]
-
-    public_deps = [ ":libtint" ]
-
-    sources = [
-      "fuzzers/tint_common_fuzzer.cc",
-      "fuzzers/tint_common_fuzzer.h",
-    ]
-  }
-
-  if (tint_build_wgsl_reader) {
-    fuzzer_test("tint_wgsl_reader_fuzzer") {
-      sources = [ "fuzzers/tint_wgsl_reader_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
-    fuzzer_test("tint_wgsl_reader_wgsl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_wgsl_reader_wgsl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_wgsl_reader && tint_build_spv_writer) {
-    fuzzer_test("tint_wgsl_reader_spv_writer_fuzzer") {
-      sources = [ "fuzzers/tint_wgsl_reader_spv_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-
-    fuzzer_test("tint_all_transforms_fuzzer") {
-      sources = [ "fuzzers/tint_all_transforms_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-
-    fuzzer_test("tint_bound_array_accessors_fuzzer") {
-      sources = [ "fuzzers/tint_bound_array_accessors_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-
-    fuzzer_test("tint_emit_vertex_point_size_fuzzer") {
-      sources = [ "fuzzers/tint_emit_vertex_point_size_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-
-    fuzzer_test("tint_first_index_offset_fuzzer") {
-      sources = [ "fuzzers/tint_first_index_offset_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-
-    fuzzer_test("tint_inspector_fuzzer") {
-      sources = [ "fuzzers/tint_inspector_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_wgsl_reader && tint_build_hlsl_writer) {
-    fuzzer_test("tint_wgsl_reader_hlsl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_wgsl_reader_hlsl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_wgsl_reader && tint_build_msl_writer) {
-    fuzzer_test("tint_wgsl_reader_msl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_wgsl_reader_msl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_spv_reader) {
-    fuzzer_test("tint_spv_reader_fuzzer") {
-      sources = [ "fuzzers/tint_spv_reader_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_spv_reader && tint_build_wgsl_writer) {
-    fuzzer_test("tint_spv_reader_wgsl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_spv_reader_wgsl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_spv_reader && tint_build_spv_writer) {
-    fuzzer_test("tint_spv_reader_spv_writer_fuzzer") {
-      sources = [ "fuzzers/tint_spv_reader_spv_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_spv_reader && tint_build_hlsl_writer) {
-    fuzzer_test("tint_spv_reader_hlsl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_spv_reader_hlsl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_spv_reader && tint_build_msl_writer) {
-    fuzzer_test("tint_spv_reader_msl_writer_fuzzer") {
-      sources = [ "fuzzers/tint_spv_reader_msl_writer_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-
-  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
-    fuzzer_test("tint_ast_clone_fuzzer") {
-      sources = [ "fuzzers/tint_ast_clone_fuzzer.cc" ]
-      deps = [ ":tint_fuzzer_common" ]
-    }
-  }
-}
-
-###############################################################################
-# Samples - Executables exposing command line functionality
-###############################################################################
-
-executable("tint") {
-  sources = [ "samples/main.cc" ]
-  deps = [
-    ":libtint",
-    "${tint_spirv_tools_dir}/:spvtools",
-    "${tint_spirv_tools_dir}/:spvtools_opt",
-    "${tint_spirv_tools_dir}/:spvtools_val",
-  ]
-
-  configs += [
-    ":tint_common_config",
-    ":tint_config",
-  ]
-  public_configs = [ ":tint_public_config" ]
-
-  if (build_with_chromium) {
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-  }
-}
diff --git a/fuzzers/BUILD.gn b/fuzzers/BUILD.gn
new file mode 100644
index 0000000..e8f6ebb
--- /dev/null
+++ b/fuzzers/BUILD.gn
@@ -0,0 +1,191 @@
+# Copyright 2021 The Tint Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/build.gni")
+import("../tint_overrides_with_defaults.gni")
+
+# Fuzzers - Libfuzzer based fuzzing targets for Chromium
+# To run the fuzzers outside of Chromium, use the CMake based builds.
+
+if (build_with_chromium) {
+  import("//testing/libfuzzer/fuzzer_test.gni")
+
+  # fuzzer_test doesn't have configs members, so need to define them in an empty
+  # source_set.
+
+  source_set("tint_fuzzer_common") {
+    public_configs = [
+      ":tint_config",
+      ":tint_common_config",
+    ]
+
+    public_deps = [ "${tint_root_dir}/src:libtint" ]
+
+    sources = [
+      "fuzzers/tint_common_fuzzer.cc",
+      "fuzzers/tint_common_fuzzer.h",
+    ]
+  }
+
+  if (tint_build_wgsl_reader) {
+    fuzzer_test("tint_wgsl_reader_fuzzer") {
+      sources = [ "fuzzers/tint_wgsl_reader_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
+    fuzzer_test("tint_wgsl_reader_wgsl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_wgsl_reader_wgsl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_wgsl_reader && tint_build_spv_writer) {
+    fuzzer_test("tint_wgsl_reader_spv_writer_fuzzer") {
+      sources = [ "fuzzers/tint_wgsl_reader_spv_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+
+    fuzzer_test("tint_all_transforms_fuzzer") {
+      sources = [ "fuzzers/tint_all_transforms_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+
+    fuzzer_test("tint_bound_array_accessors_fuzzer") {
+      sources = [ "fuzzers/tint_bound_array_accessors_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+
+    fuzzer_test("tint_emit_vertex_point_size_fuzzer") {
+      sources = [ "fuzzers/tint_emit_vertex_point_size_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+
+    fuzzer_test("tint_first_index_offset_fuzzer") {
+      sources = [ "fuzzers/tint_first_index_offset_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+
+    fuzzer_test("tint_inspector_fuzzer") {
+      sources = [ "fuzzers/tint_inspector_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_wgsl_reader && tint_build_hlsl_writer) {
+    fuzzer_test("tint_wgsl_reader_hlsl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_wgsl_reader_hlsl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_wgsl_reader && tint_build_msl_writer) {
+    fuzzer_test("tint_wgsl_reader_msl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_wgsl_reader_msl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_spv_reader) {
+    fuzzer_test("tint_spv_reader_fuzzer") {
+      sources = [ "fuzzers/tint_spv_reader_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_spv_reader && tint_build_wgsl_writer) {
+    fuzzer_test("tint_spv_reader_wgsl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_spv_reader_wgsl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_spv_reader && tint_build_spv_writer) {
+    fuzzer_test("tint_spv_reader_spv_writer_fuzzer") {
+      sources = [ "fuzzers/tint_spv_reader_spv_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_spv_reader && tint_build_hlsl_writer) {
+    fuzzer_test("tint_spv_reader_hlsl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_spv_reader_hlsl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_spv_reader && tint_build_msl_writer) {
+    fuzzer_test("tint_spv_reader_msl_writer_fuzzer") {
+      sources = [ "fuzzers/tint_spv_reader_msl_writer_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
+    fuzzer_test("tint_ast_clone_fuzzer") {
+      sources = [ "fuzzers/tint_ast_clone_fuzzer.cc" ]
+      deps = [ ":tint_fuzzer_common" ]
+    }
+  }
+
+  group("fuzzers") {
+    testonly = true
+    deps = []
+
+    if (tint_build_wgsl_reader) {
+      deps += [ ":tint_wgsl_reader_fuzzer" ]
+    }
+    if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
+      deps += [ ":tint_wgsl_reader_wgsl_writer_fuzzer" ]
+    }
+    if (tint_build_wgsl_reader && tint_build_spv_writer) {
+      deps += [
+        ":tint_all_transforms_fuzzer",
+        ":tint_bound_array_accessors_fuzzer",
+        ":tint_emit_vertex_point_size_fuzzer",
+        ":tint_first_index_offset_fuzzer",
+        ":tint_inspector_fuzzer",
+        ":tint_wgsl_reader_spv_writer_fuzzer",
+      ]
+    }
+    if (tint_build_wgsl_reader && tint_build_hlsl_writer) {
+      deps += [ ":tint_wgsl_reader_hlsl_writer_fuzzer" ]
+    }
+    if (tint_build_wgsl_reader && tint_build_msl_writer) {
+      deps += [ ":tint_wgsl_reader_msl_writer_fuzzer" ]
+    }
+    if (tint_build_spv_reader) {
+      deps += [ ":tint_spv_reader_fuzzer" ]
+    }
+    if (tint_build_spv_reader && tint_build_wgsl_writer) {
+      deps += [ ":tint_spv_reader_wgsl_writer_fuzzer" ]
+    }
+    if (tint_build_spv_reader && tint_build_spv_writer) {
+      deps += [ ":tint_spv_reader_spv_writer_fuzzer" ]
+    }
+    if (tint_build_spv_reader && tint_build_hlsl_writer) {
+      deps += [ ":tint_spv_reader_hlsl_writer_fuzzer" ]
+    }
+    if (tint_build_spv_reader && tint_build_msl_writer) {
+      deps += [ ":tint_spv_reader_msl_writer_fuzzer" ]
+    }
+    if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
+      deps += [ ":tint_ast_clone_fuzzer" ]
+    }
+  }
+} else {
+  group("fuzzers") {
+  }
+}
diff --git a/samples/BUILD.gn b/samples/BUILD.gn
new file mode 100644
index 0000000..6ed2d45
--- /dev/null
+++ b/samples/BUILD.gn
@@ -0,0 +1,36 @@
+# Copyright 2021 The Tint Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/build.gni")
+import("../tint_overrides_with_defaults.gni")
+
+executable("tint") {
+  sources = [ "main.cc" ]
+  deps = [
+    "${tint_root_dir}/src:libtint",
+    "${tint_spirv_tools_dir}/:spvtools",
+    "${tint_spirv_tools_dir}/:spvtools_opt",
+    "${tint_spirv_tools_dir}/:spvtools_val",
+  ]
+
+  configs += [
+    "${tint_root_dir}/src:tint_common_config",
+    "${tint_root_dir}/src:tint_config",
+  ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}
diff --git a/src/BUILD.gn b/src/BUILD.gn
new file mode 100644
index 0000000..b5398bd
--- /dev/null
+++ b/src/BUILD.gn
@@ -0,0 +1,681 @@
+# Copyright 2021 The Tint Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/build.gni")
+import("../tint_overrides_with_defaults.gni")
+
+###############################################################################
+# Common - Configs, etc. shared across targets
+###############################################################################
+
+config("tint_common_config") {
+  include_dirs = [
+    "${target_gen_dir}",
+    "${tint_root_dir}/",
+    "${tint_spirv_headers_dir}/include",
+    "${tint_spirv_tools_dir}/",
+    "${tint_spirv_tools_dir}/include",
+  ]
+}
+
+config("tint_public_config") {
+  defines = []
+  if (tint_build_spv_reader) {
+    defines += [ "TINT_BUILD_SPV_READER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_SPV_READER=0" ]
+  }
+
+  if (tint_build_spv_writer) {
+    defines += [ "TINT_BUILD_SPV_WRITER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_SPV_WRITER=0" ]
+  }
+
+  if (tint_build_wgsl_reader) {
+    defines += [ "TINT_BUILD_WGSL_READER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_WGSL_READER=0" ]
+  }
+
+  if (tint_build_wgsl_writer) {
+    defines += [ "TINT_BUILD_WGSL_WRITER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_WGSL_WRITER=0" ]
+  }
+
+  if (tint_build_msl_writer) {
+    defines += [ "TINT_BUILD_MSL_WRITER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_MSL_WRITER=0" ]
+  }
+
+  if (tint_build_hlsl_writer) {
+    defines += [ "TINT_BUILD_HLSL_WRITER=1" ]
+  } else {
+    defines += [ "TINT_BUILD_HLSL_WRITER=0" ]
+  }
+
+  include_dirs = [
+    "${tint_root_dir}/",
+    "${tint_root_dir}/include/",
+    "${tint_spirv_headers_dir}/include",
+  ]
+}
+
+config("tint_config") {
+  include_dirs = []
+  if (tint_build_spv_reader || tint_build_spv_writer) {
+    include_dirs += [ "${tint_spirv_tools_dir}/include/" ]
+  }
+}
+
+###############################################################################
+# Generated - Generated source files
+###############################################################################
+# These are copies of rules from SPIRV-Tools with the names tweaked to be Tint
+# specific. They are needed here because referencing generated files in sibling
+# packages is difficult/impossible in Chromium. Parts of Tint's SPIRV handling
+# code depend on internal parts of SPIRV-Tools. This causes issues because when
+# Tint references the internal headers, since it causes a dependency on these
+# generated files, but they are not visible in the context building Tint. Thus
+# Tint generates its own copy of the generated files. Since they come from the
+# same source of truth, they should not vary.
+
+template("tint_core_tables") {
+  assert(defined(invoker.version), "Need version in $target_name generation.")
+
+  action("tint_core_tables_" + target_name) {
+    script = "${tint_spirv_tools_dir}/utils/generate_grammar_tables.py"
+
+    version = invoker.version
+
+    core_json_file = "${tint_spirv_headers_dir}/include/spirv/$version/spirv.core.grammar.json"
+    core_insts_file = "${target_gen_dir}/core.insts-$version.inc"
+    operand_kinds_file = "${target_gen_dir}/operand.kinds-$version.inc"
+    debuginfo_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
+    cldebuginfo100_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
+
+    sources = [
+      cldebuginfo100_insts_file,
+      core_json_file,
+      debuginfo_insts_file,
+    ]
+    outputs = [
+      core_insts_file,
+      operand_kinds_file,
+    ]
+    args = [
+      "--spirv-core-grammar",
+      rebase_path(core_json_file, root_build_dir),
+      "--core-insts-output",
+      rebase_path(core_insts_file, root_build_dir),
+      "--extinst-debuginfo-grammar",
+      rebase_path(debuginfo_insts_file, root_build_dir),
+      "--extinst-cldebuginfo100-grammar",
+      rebase_path(cldebuginfo100_insts_file, root_build_dir),
+      "--operand-kinds-output",
+      rebase_path(operand_kinds_file, root_build_dir),
+    ]
+  }
+}
+
+template("tint_core_enums") {
+  assert(defined(invoker.version), "Need version in $target_name generation.")
+
+  action("tint_core_enums_" + target_name) {
+    script = "${tint_spirv_tools_dir}/utils/generate_grammar_tables.py"
+
+    version = invoker.version
+
+    core_json_file = "${tint_spirv_headers_dir}/include/spirv/$version/spirv.core.grammar.json"
+    debuginfo_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
+    cldebuginfo100_insts_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
+
+    extension_enum_file = "${target_gen_dir}/extension_enum.inc"
+    extension_map_file = "${target_gen_dir}/enum_string_mapping.inc"
+
+    args = [
+      "--spirv-core-grammar",
+      rebase_path(core_json_file, root_build_dir),
+      "--extinst-debuginfo-grammar",
+      rebase_path(debuginfo_insts_file, root_build_dir),
+      "--extinst-cldebuginfo100-grammar",
+      rebase_path(cldebuginfo100_insts_file, root_build_dir),
+      "--extension-enum-output",
+      rebase_path(extension_enum_file, root_build_dir),
+      "--enum-string-mapping-output",
+      rebase_path(extension_map_file, root_build_dir),
+    ]
+    inputs = [
+      core_json_file,
+      debuginfo_insts_file,
+      cldebuginfo100_insts_file,
+    ]
+    outputs = [
+      extension_enum_file,
+      extension_map_file,
+    ]
+  }
+}
+
+template("tint_language_header") {
+  assert(defined(invoker.name), "Need name in $target_name generation.")
+
+  action("tint_language_header_" + target_name) {
+    script = "${tint_spirv_tools_dir}/utils/generate_language_headers.py"
+
+    name = invoker.name
+    extinst_output_path = "${target_gen_dir}/${name}.h"
+
+    args = [
+      "--extinst-grammar",
+      rebase_path(invoker.grammar_file, root_build_dir),
+      "--extinst-output-path",
+      rebase_path(extinst_output_path, root_build_dir),
+    ]
+    inputs = [ invoker.grammar_file ]
+    outputs = [ "${extinst_output_path}" ]
+  }
+}
+
+tint_core_tables("unified1") {
+  version = "unified1"
+}
+
+tint_core_enums("unified1") {
+  version = "unified1"
+}
+
+tint_language_header("debuginfo") {
+  name = "DebugInfo"
+  grammar_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.debuginfo.grammar.json"
+}
+
+tint_language_header("cldebuginfo100") {
+  name = "OpenCLDebugInfo100"
+  grammar_file = "${tint_spirv_headers_dir}/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json"
+}
+
+###############################################################################
+# Library - Tint core and optional modules of libtint
+###############################################################################
+# libtint source sets are divided into a non-optional core in :libtint_core_src
+# and optional :libtint_*_src subsets, because ninja does not like having
+# multiple source files with the same name, like function.cc, in the same
+# source set
+# target.
+#
+# Targets that want to use tint as a library should depend on ":libtint" and
+# use the build flags to control what is included, instead of trying to specify
+# the subsets that they want.
+
+source_set("libtint_core_src") {
+  sources = [
+    "ast/access_control.cc",
+    "ast/access_control.h",
+    "ast/access_decoration.cc",
+    "ast/access_decoration.h",
+    "ast/array_accessor_expression.cc",
+    "ast/array_accessor_expression.h",
+    "ast/assignment_statement.cc",
+    "ast/assignment_statement.h",
+    "ast/binary_expression.cc",
+    "ast/binary_expression.h",
+    "ast/binding_decoration.cc",
+    "ast/binding_decoration.h",
+    "ast/bitcast_expression.cc",
+    "ast/bitcast_expression.h",
+    "ast/block_statement.cc",
+    "ast/block_statement.h",
+    "ast/bool_literal.cc",
+    "ast/bool_literal.h",
+    "ast/break_statement.cc",
+    "ast/break_statement.h",
+    "ast/builtin.cc",
+    "ast/builtin.h",
+    "ast/builtin_decoration.cc",
+    "ast/builtin_decoration.h",
+    "ast/call_expression.cc",
+    "ast/call_expression.h",
+    "ast/call_statement.cc",
+    "ast/call_statement.h",
+    "ast/case_statement.cc",
+    "ast/case_statement.h",
+    "ast/constant_id_decoration.cc",
+    "ast/constant_id_decoration.h",
+    "ast/constructor_expression.cc",
+    "ast/constructor_expression.h",
+    "ast/continue_statement.cc",
+    "ast/continue_statement.h",
+    "ast/decoration.cc",
+    "ast/decoration.h",
+    "ast/discard_statement.cc",
+    "ast/discard_statement.h",
+    "ast/else_statement.cc",
+    "ast/else_statement.h",
+    "ast/expression.cc",
+    "ast/expression.h",
+    "ast/fallthrough_statement.cc",
+    "ast/fallthrough_statement.h",
+    "ast/float_literal.cc",
+    "ast/float_literal.h",
+    "ast/function.cc",
+    "ast/function.h",
+    "ast/group_decoration.cc",
+    "ast/group_decoration.h",
+    "ast/identifier_expression.cc",
+    "ast/identifier_expression.h",
+    "ast/if_statement.cc",
+    "ast/if_statement.h",
+    "ast/int_literal.cc",
+    "ast/int_literal.h",
+    "ast/literal.cc",
+    "ast/literal.h",
+    "ast/location_decoration.cc",
+    "ast/location_decoration.h",
+    "ast/loop_statement.cc",
+    "ast/loop_statement.h",
+    "ast/member_accessor_expression.cc",
+    "ast/member_accessor_expression.h",
+    "ast/module.cc",
+    "ast/module.h",
+    "ast/node.cc",
+    "ast/node.h",
+    "ast/null_literal.cc",
+    "ast/null_literal.h",
+    "ast/pipeline_stage.cc",
+    "ast/pipeline_stage.h",
+    "ast/return_statement.cc",
+    "ast/return_statement.h",
+    "ast/scalar_constructor_expression.cc",
+    "ast/scalar_constructor_expression.h",
+    "ast/sint_literal.cc",
+    "ast/sint_literal.h",
+    "ast/stage_decoration.cc",
+    "ast/stage_decoration.h",
+    "ast/statement.cc",
+    "ast/statement.h",
+    "ast/storage_class.cc",
+    "ast/storage_class.h",
+    "ast/stride_decoration.cc",
+    "ast/stride_decoration.h",
+    "ast/struct.cc",
+    "ast/struct.h",
+    "ast/struct_block_decoration.cc",
+    "ast/struct_block_decoration.h",
+    "ast/struct_member.cc",
+    "ast/struct_member.h",
+    "ast/struct_member_offset_decoration.cc",
+    "ast/struct_member_offset_decoration.h",
+    "ast/switch_statement.cc",
+    "ast/switch_statement.h",
+    "ast/type_constructor_expression.cc",
+    "ast/type_constructor_expression.h",
+    "ast/uint_literal.cc",
+    "ast/uint_literal.h",
+    "ast/unary_op.cc",
+    "ast/unary_op.h",
+    "ast/unary_op_expression.cc",
+    "ast/unary_op_expression.h",
+    "ast/variable.cc",
+    "ast/variable.h",
+    "ast/variable_decl_statement.cc",
+    "ast/variable_decl_statement.h",
+    "ast/workgroup_decoration.cc",
+    "ast/workgroup_decoration.h",
+    "block_allocator.h",
+    "castable.cc",
+    "castable.h",
+    "clone_context.cc",
+    "clone_context.h",
+    "debug.cc",
+    "debug.h",
+    "demangler.cc",
+    "demangler.h",
+    "diagnostic/diagnostic.cc",
+    "diagnostic/diagnostic.h",
+    "diagnostic/formatter.cc",
+    "diagnostic/formatter.h",
+    "diagnostic/printer.cc",
+    "diagnostic/printer.h",
+    "inspector/entry_point.cc",
+    "inspector/entry_point.h",
+    "inspector/inspector.cc",
+    "inspector/inspector.h",
+    "inspector/scalar.cc",
+    "inspector/scalar.h",
+    "intrinsic_table.cc",
+    "intrinsic_table.h",
+    "program.cc",
+    "program.h",
+    "program_builder.cc",
+    "program_builder.h",
+    "reader/reader.cc",
+    "reader/reader.h",
+    "resolver/resolver.cc",
+    "resolver/resolver.h",
+    "scope_stack.h",
+    "semantic/call.h",
+    "semantic/expression.h",
+    "semantic/info.h",
+    "semantic/intrinsic.h",
+    "semantic/node.h",
+    "semantic/sem_call.cc",
+    "semantic/sem_call_target.cc",
+    "semantic/sem_expression.cc",
+    "semantic/sem_function.cc",
+    "semantic/sem_info.cc",
+    "semantic/sem_intrinsic.cc",
+    "semantic/sem_member_accessor_expression.cc",
+    "semantic/sem_node.cc",
+    "semantic/sem_statement.cc",
+    "semantic/sem_variable.cc",
+    "semantic/type_mappings.h",
+    "source.cc",
+    "source.h",
+    "symbol.cc",
+    "symbol.h",
+    "symbol_table.cc",
+    "symbol_table.h",
+    "traits.h",
+    "transform/bound_array_accessors.cc",
+    "transform/bound_array_accessors.h",
+    "transform/emit_vertex_point_size.cc",
+    "transform/emit_vertex_point_size.h",
+    "transform/first_index_offset.cc",
+    "transform/first_index_offset.h",
+    "transform/manager.cc",
+    "transform/manager.h",
+    "transform/renamer.cc",
+    "transform/renamer.h",
+    "transform/transform.cc",
+    "transform/transform.h",
+    "transform/vertex_pulling.cc",
+    "transform/vertex_pulling.h",
+    "type/access_control_type.cc",
+    "type/access_control_type.h",
+    "type/alias_type.cc",
+    "type/alias_type.h",
+    "type/array_type.cc",
+    "type/array_type.h",
+    "type/bool_type.cc",
+    "type/bool_type.h",
+    "type/depth_texture_type.cc",
+    "type/depth_texture_type.h",
+    "type/f32_type.cc",
+    "type/f32_type.h",
+    "type/i32_type.cc",
+    "type/i32_type.h",
+    "type/matrix_type.cc",
+    "type/matrix_type.h",
+    "type/multisampled_texture_type.cc",
+    "type/multisampled_texture_type.h",
+    "type/pointer_type.cc",
+    "type/pointer_type.h",
+    "type/sampled_texture_type.cc",
+    "type/sampled_texture_type.h",
+    "type/sampler_type.cc",
+    "type/sampler_type.h",
+    "type/storage_texture_type.cc",
+    "type/storage_texture_type.h",
+    "type/struct_type.cc",
+    "type/struct_type.h",
+    "type/texture_type.cc",
+    "type/texture_type.h",
+    "type/type.cc",
+    "type/type.h",
+    "type/type_manager.cc",
+    "type/type_manager.h",
+    "type/u32_type.cc",
+    "type/u32_type.h",
+    "type/vector_type.cc",
+    "type/vector_type.h",
+    "type/void_type.cc",
+    "type/void_type.h",
+    "utils/unique_vector.h",
+    "validator/validator.cc",
+    "validator/validator.h",
+    "validator/validator_impl.cc",
+    "validator/validator_impl.h",
+    "writer/append_vector.cc",
+    "writer/append_vector.h",
+    "writer/float_to_string.cc",
+    "writer/float_to_string.h",
+    "writer/text.cc",
+    "writer/text.h",
+    "writer/text_generator.cc",
+    "writer/text_generator.h",
+    "writer/writer.cc",
+    "writer/writer.h",
+  ]
+
+  if (is_linux) {
+    sources += [ "diagnostic/printer_linux.cc" ]
+  } else if (is_win) {
+    sources += [ "diagnostic/printer_windows.cc" ]
+  } else {
+    sources += [ "diagnostic/printer_other.cc" ]
+  }
+
+  public_deps = [
+    ":tint_core_enums_unified1",
+    ":tint_core_tables_unified1",
+    ":tint_language_header_cldebuginfo100",
+    ":tint_language_header_debuginfo",
+    "${tint_spirv_headers_dir}:spv_headers",
+    "${tint_spirv_tools_dir}:spvtools_headers",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}
+
+source_set("libtint_spv_reader_src") {
+  sources = [
+    "reader/spirv/construct.cc",
+    "reader/spirv/construct.h",
+    "reader/spirv/entry_point_info.h",
+    "reader/spirv/enum_converter.cc",
+    "reader/spirv/enum_converter.h",
+    "reader/spirv/fail_stream.h",
+    "reader/spirv/function.cc",
+    "reader/spirv/function.h",
+    "reader/spirv/namer.cc",
+    "reader/spirv/namer.h",
+    "reader/spirv/parser.cc",
+    "reader/spirv/parser.h",
+    "reader/spirv/parser_impl.cc",
+    "reader/spirv/parser_impl.h",
+    "reader/spirv/usage.cc",
+    "reader/spirv/usage.h",
+  ]
+
+  deps = [
+    ":tint_core_enums_unified1",
+    ":tint_core_tables_unified1",
+    ":tint_language_header_cldebuginfo100",
+    ":tint_language_header_debuginfo",
+    "${tint_spirv_tools_dir}/:spvtools",
+    "${tint_spirv_tools_dir}/:spvtools_opt",
+    "${tint_spirv_tools_dir}/:spvtools_val",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint_spv_writer_src") {
+  sources = [
+    "transform/spirv.cc",
+    "transform/spirv.h",
+    "writer/spirv/binary_writer.cc",
+    "writer/spirv/binary_writer.h",
+    "writer/spirv/builder.cc",
+    "writer/spirv/builder.h",
+    "writer/spirv/function.cc",
+    "writer/spirv/function.h",
+    "writer/spirv/generator.cc",
+    "writer/spirv/generator.h",
+    "writer/spirv/instruction.cc",
+    "writer/spirv/instruction.h",
+    "writer/spirv/operand.cc",
+    "writer/spirv/operand.h",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint_wgsl_reader_src") {
+  sources = [
+    "reader/wgsl/lexer.cc",
+    "reader/wgsl/lexer.h",
+    "reader/wgsl/parser.cc",
+    "reader/wgsl/parser.h",
+    "reader/wgsl/parser_impl.cc",
+    "reader/wgsl/parser_impl.h",
+    "reader/wgsl/parser_impl_detail.h",
+    "reader/wgsl/token.cc",
+    "reader/wgsl/token.h",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint_wgsl_writer_src") {
+  sources = [
+    "writer/wgsl/generator.cc",
+    "writer/wgsl/generator.h",
+    "writer/wgsl/generator_impl.cc",
+    "writer/wgsl/generator_impl.h",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint_msl_writer_src") {
+  sources = [
+    "transform/msl.cc",
+    "transform/msl.h",
+    "writer/msl/generator.cc",
+    "writer/msl/generator.h",
+    "writer/msl/generator_impl.cc",
+    "writer/msl/generator_impl.h",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint_hlsl_writer_src") {
+  sources = [
+    "transform/hlsl.cc",
+    "transform/hlsl.h",
+    "writer/hlsl/generator.cc",
+    "writer/hlsl/generator.h",
+    "writer/hlsl/generator_impl.cc",
+    "writer/hlsl/generator_impl.h",
+    "writer/hlsl/namer.cc",
+    "writer/hlsl/namer.h",
+  ]
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  public_deps = [ ":libtint_core_src" ]
+}
+
+source_set("libtint") {
+  public_deps = [ ":libtint_core_src" ]
+
+  if (tint_build_spv_reader) {
+    public_deps += [ ":libtint_spv_reader_src" ]
+  }
+
+  if (tint_build_spv_writer) {
+    public_deps += [ ":libtint_spv_writer_src" ]
+  }
+
+  if (tint_build_wgsl_reader) {
+    public_deps += [ ":libtint_wgsl_reader_src" ]
+  }
+
+  if (tint_build_wgsl_writer) {
+    public_deps += [ ":libtint_wgsl_writer_src" ]
+  }
+
+  if (tint_build_msl_writer) {
+    public_deps += [ ":libtint_msl_writer_src" ]
+  }
+
+  if (tint_build_hlsl_writer) {
+    public_deps += [ ":libtint_hlsl_writer_src" ]
+  }
+
+  configs += [ ":tint_common_config" ]
+  public_configs = [ ":tint_public_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}
diff --git a/test/BUILD.gn b/test/BUILD.gn
new file mode 100644
index 0000000..775d5f4
--- /dev/null
+++ b/test/BUILD.gn
@@ -0,0 +1,652 @@
+# Copyright 2021 The Tint Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/build.gni")
+import("//testing/test.gni")
+import("../tint_overrides_with_defaults.gni")
+
+###############################################################################
+# Gtest Gmock - Handle building inside and outside of Chromium.
+###############################################################################
+# When building outside of Chromium we need to define our own targets for GTest
+# and GMock. However when compiling inside of Chromium we need to reuse the
+# existing targets, both because Chromium has a special harness for swarming
+# and because otherwise the "gn check" fails.
+
+if (!build_with_chromium) {
+  # When we aren't in Chromium we define out own targets based on the location
+  # of the googletest repo.
+  config("gtest_config") {
+    include_dirs = [
+      "${tint_googletest_dir}/googletest",
+      "${tint_googletest_dir}/googletest/include",
+    ]
+  }
+  static_library("gtest") {
+    testonly = true
+    sources = [ "${tint_googletest_dir}/googletest/src/gtest-all.cc" ]
+    public_configs = [ ":gtest_config" ]
+  }
+
+  config("gmock_config") {
+    include_dirs = [
+      "${tint_googletest_dir}/googlemock",
+      "${tint_googletest_dir}/googlemock/include",
+      "${tint_googletest_dir}/googletest/include",
+    ]
+  }
+
+  static_library("gmock") {
+    testonly = true
+    sources = [ "${tint_googletest_dir}/googlemock/src/gmock-all.cc" ]
+    public_configs = [ ":gmock_config" ]
+  }
+
+  group("gmock_and_gtest") {
+    testonly = true
+    public_deps = [
+      ":gmock",
+      ":gtest",
+    ]
+  }
+} else {
+  # When we are in Chromium we reuse its targets, and also add some deps that
+  # are needed to launch the test in swarming mode.
+  group("gmock_and_gtest") {
+    testonly = true
+    public_deps = [
+      "//base",
+      "//base/test:test_support",
+      "//testing/gmock",
+      "//testing/gtest",
+      "//third_party/googletest:gmock",
+    ]
+  }
+}
+
+###############################################################################
+# Wrapping of Chromium targets
+###############################################################################
+# These targets are separated because they are Chromium sources files that
+# can't use the tint_internal config, otherwise Tint's warning flags get
+# applied while compiling a bunch of Chromium's //base (via header inclusion)
+source_set("tint_unittests_main") {
+  testonly = true
+  deps = [ ":gmock_and_gtest" ]
+  if (build_with_chromium) {
+    sources = [ "//gpu/tint_unittests_main.cc" ]
+  } else {
+    sources = [ "../src/test_main.cc" ]
+  }
+}
+
+###############################################################################
+# Tests - For libtint core and optional modules
+###############################################################################
+config("tint_unittests_config") {
+  include_dirs = [
+    "${tint_googletest_dir}/googlemock/include",
+    "${tint_googletest_dir}/googletest/include",
+  ]
+
+  configs = [
+    "${tint_root_dir}/src:tint_common_config",
+    "${tint_root_dir}/src:tint_public_config",
+  ]
+}
+
+source_set("tint_unittests_core_src") {
+  sources = [
+    "../src/ast/access_decoration_test.cc",
+    "../src/ast/array_accessor_expression_test.cc",
+    "../src/ast/assignment_statement_test.cc",
+    "../src/ast/binary_expression_test.cc",
+    "../src/ast/binding_decoration_test.cc",
+    "../src/ast/bitcast_expression_test.cc",
+    "../src/ast/block_statement_test.cc",
+    "../src/ast/bool_literal_test.cc",
+    "../src/ast/break_statement_test.cc",
+    "../src/ast/builtin_decoration_test.cc",
+    "../src/ast/call_expression_test.cc",
+    "../src/ast/call_statement_test.cc",
+    "../src/ast/case_statement_test.cc",
+    "../src/ast/constant_id_decoration_test.cc",
+    "../src/ast/continue_statement_test.cc",
+    "../src/ast/discard_statement_test.cc",
+    "../src/ast/else_statement_test.cc",
+    "../src/ast/fallthrough_statement_test.cc",
+    "../src/ast/float_literal_test.cc",
+    "../src/ast/function_test.cc",
+    "../src/ast/group_decoration_test.cc",
+    "../src/ast/identifier_expression_test.cc",
+    "../src/ast/if_statement_test.cc",
+    "../src/ast/int_literal_test.cc",
+    "../src/ast/intrinsic_texture_helper_test.cc",
+    "../src/ast/intrinsic_texture_helper_test.h",
+    "../src/ast/location_decoration_test.cc",
+    "../src/ast/loop_statement_test.cc",
+    "../src/ast/member_accessor_expression_test.cc",
+    "../src/ast/module_clone_test.cc",
+    "../src/ast/module_test.cc",
+    "../src/ast/null_literal_test.cc",
+    "../src/ast/return_statement_test.cc",
+    "../src/ast/scalar_constructor_expression_test.cc",
+    "../src/ast/sint_literal_test.cc",
+    "../src/ast/stage_decoration_test.cc",
+    "../src/ast/stride_decoration_test.cc",
+    "../src/ast/struct_member_offset_decoration_test.cc",
+    "../src/ast/struct_member_test.cc",
+    "../src/ast/struct_test.cc",
+    "../src/ast/switch_statement_test.cc",
+    "../src/ast/test_helper.h",
+    "../src/ast/type_constructor_expression_test.cc",
+    "../src/ast/uint_literal_test.cc",
+    "../src/ast/unary_op_expression_test.cc",
+    "../src/ast/variable_decl_statement_test.cc",
+    "../src/ast/variable_test.cc",
+    "../src/ast/workgroup_decoration_test.cc",
+    "../src/block_allocator_test.cc",
+    "../src/castable_test.cc",
+    "../src/clone_context_test.cc",
+    "../src/debug_test.cc",
+    "../src/demangler_test.cc",
+    "../src/diagnostic/formatter_test.cc",
+    "../src/diagnostic/printer_test.cc",
+    "../src/inspector/inspector_test.cc",
+    "../src/intrinsic_table_test.cc",
+    "../src/program_builder_test.cc",
+    "../src/program_test.cc",
+    "../src/resolver/intrinsic_test.cc",
+    "../src/resolver/resolver_test.cc",
+    "../src/resolver/resolver_test_helper.cc",
+    "../src/resolver/resolver_test_helper.h",
+    "../src/resolver/validation_test.cc",
+    "../src/scope_stack_test.cc",
+    "../src/semantic/sem_intrinsic_test.cc",
+    "../src/symbol_table_test.cc",
+    "../src/symbol_test.cc",
+    "../src/traits_test.cc",
+    "../src/transform/bound_array_accessors_test.cc",
+    "../src/transform/emit_vertex_point_size_test.cc",
+    "../src/transform/first_index_offset_test.cc",
+    "../src/transform/renamer_test.cc",
+    "../src/transform/test_helper.h",
+    "../src/transform/vertex_pulling_test.cc",
+    "../src/type/access_control_type_test.cc",
+    "../src/type/alias_type_test.cc",
+    "../src/type/array_type_test.cc",
+    "../src/type/bool_type_test.cc",
+    "../src/type/depth_texture_type_test.cc",
+    "../src/type/f32_type_test.cc",
+    "../src/type/i32_type_test.cc",
+    "../src/type/matrix_type_test.cc",
+    "../src/type/multisampled_texture_type_test.cc",
+    "../src/type/pointer_type_test.cc",
+    "../src/type/sampled_texture_type_test.cc",
+    "../src/type/sampler_type_test.cc",
+    "../src/type/storage_texture_type_test.cc",
+    "../src/type/struct_type_test.cc",
+    "../src/type/texture_type_test.cc",
+    "../src/type/type_manager_test.cc",
+    "../src/type/u32_type_test.cc",
+    "../src/type/vector_type_test.cc",
+    "../src/utils/command.h",
+    "../src/utils/command_test.cc",
+    "../src/utils/tmpfile.h",
+    "../src/utils/tmpfile_test.cc",
+    "../src/utils/unique_vector_test.cc",
+    "../src/validator/validator_builtins_test.cc",
+    "../src/validator/validator_control_block_test.cc",
+    "../src/validator/validator_decoration_test.cc",
+    "../src/validator/validator_function_test.cc",
+    "../src/validator/validator_test.cc",
+    "../src/validator/validator_test_helper.cc",
+    "../src/validator/validator_test_helper.h",
+    "../src/writer/float_to_string_test.cc",
+  ]
+
+  if (is_linux || is_mac) {
+    sources += [ "../src/utils/command_posix.cc" ]
+    sources += [ "../src/utils/tmpfile_posix.cc" ]
+  } else if (is_win) {
+    sources += [ "../src/utils/command_windows.cc" ]
+    sources += [ "../src/utils/tmpfile_windows.cc" ]
+  } else {
+    sources += [ "../src/utils/command_other.cc" ]
+    sources += [ "../src/utils/tmpfile_other.cc" ]
+  }
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    "${tint_root_dir}/src:libtint_core_src",
+    "${tint_root_dir}/src:libtint_wgsl_reader_src",
+    "${tint_root_dir}/src:libtint_wgsl_writer_src",
+  ]
+}
+
+source_set("tint_unittests_spv_reader_src") {
+  sources = [
+    "../src/reader/spirv/enum_converter_test.cc",
+    "../src/reader/spirv/fail_stream_test.cc",
+    "../src/reader/spirv/function_arithmetic_test.cc",
+    "../src/reader/spirv/function_bit_test.cc",
+    "../src/reader/spirv/function_call_test.cc",
+    "../src/reader/spirv/function_cfg_test.cc",
+    "../src/reader/spirv/function_composite_test.cc",
+    "../src/reader/spirv/function_conversion_test.cc",
+    "../src/reader/spirv/function_decl_test.cc",
+    "../src/reader/spirv/function_glsl_std_450_test.cc",
+    "../src/reader/spirv/function_logical_test.cc",
+    "../src/reader/spirv/function_memory_test.cc",
+    "../src/reader/spirv/function_misc_test.cc",
+    "../src/reader/spirv/function_var_test.cc",
+    "../src/reader/spirv/namer_test.cc",
+    "../src/reader/spirv/parser_impl_convert_member_decoration_test.cc",
+    "../src/reader/spirv/parser_impl_convert_type_test.cc",
+    "../src/reader/spirv/parser_impl_function_decl_test.cc",
+    "../src/reader/spirv/parser_impl_get_decorations_test.cc",
+    "../src/reader/spirv/parser_impl_handle_test.cc",
+    "../src/reader/spirv/parser_impl_import_test.cc",
+    "../src/reader/spirv/parser_impl_module_var_test.cc",
+    "../src/reader/spirv/parser_impl_named_types_test.cc",
+    "../src/reader/spirv/parser_impl_test.cc",
+    "../src/reader/spirv/parser_impl_user_name_test.cc",
+    "../src/reader/spirv/parser_test.cc",
+    "../src/reader/spirv/spirv_tools_helpers_test.cc",
+    "../src/reader/spirv/spirv_tools_helpers_test.h",
+    "../src/reader/spirv/usage_test.cc",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_spv_reader_src",
+  ]
+}
+
+source_set("tint_unittests_spv_writer_src") {
+  sources = [
+    "../src/transform/spirv_test.cc",
+    "../src/writer/spirv/binary_writer_test.cc",
+    "../src/writer/spirv/builder_accessor_expression_test.cc",
+    "../src/writer/spirv/builder_assign_test.cc",
+    "../src/writer/spirv/builder_binary_expression_test.cc",
+    "../src/writer/spirv/builder_bitcast_expression_test.cc",
+    "../src/writer/spirv/builder_block_test.cc",
+    "../src/writer/spirv/builder_call_test.cc",
+    "../src/writer/spirv/builder_constructor_expression_test.cc",
+    "../src/writer/spirv/builder_discard_test.cc",
+    "../src/writer/spirv/builder_entry_point_test.cc",
+    "../src/writer/spirv/builder_format_conversion_test.cc",
+    "../src/writer/spirv/builder_function_decoration_test.cc",
+    "../src/writer/spirv/builder_function_test.cc",
+    "../src/writer/spirv/builder_function_variable_test.cc",
+    "../src/writer/spirv/builder_global_variable_test.cc",
+    "../src/writer/spirv/builder_ident_expression_test.cc",
+    "../src/writer/spirv/builder_if_test.cc",
+    "../src/writer/spirv/builder_intrinsic_test.cc",
+    "../src/writer/spirv/builder_intrinsic_texture_test.cc",
+    "../src/writer/spirv/builder_literal_test.cc",
+    "../src/writer/spirv/builder_loop_test.cc",
+    "../src/writer/spirv/builder_return_test.cc",
+    "../src/writer/spirv/builder_switch_test.cc",
+    "../src/writer/spirv/builder_test.cc",
+    "../src/writer/spirv/builder_type_test.cc",
+    "../src/writer/spirv/builder_unary_op_expression_test.cc",
+    "../src/writer/spirv/instruction_test.cc",
+    "../src/writer/spirv/operand_test.cc",
+    "../src/writer/spirv/spv_dump.cc",
+    "../src/writer/spirv/spv_dump.h",
+    "../src/writer/spirv/test_helper.h",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_spv_writer_src",
+  ]
+}
+
+source_set("tint_unittests_wgsl_reader_src") {
+  sources = [
+    "../src/reader/wgsl/lexer_test.cc",
+    "../src/reader/wgsl/parser_impl_additive_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_and_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_argument_expression_list_test.cc",
+    "../src/reader/wgsl/parser_impl_assignment_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_body_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_break_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_bug_cases_test.cc",
+    "../src/reader/wgsl/parser_impl_call_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_case_body_test.cc",
+    "../src/reader/wgsl/parser_impl_const_expr_test.cc",
+    "../src/reader/wgsl/parser_impl_const_literal_test.cc",
+    "../src/reader/wgsl/parser_impl_continue_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_continuing_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_depth_texture_type_test.cc",
+    "../src/reader/wgsl/parser_impl_else_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_elseif_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_equality_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_error_msg_test.cc",
+    "../src/reader/wgsl/parser_impl_error_resync_test.cc",
+    "../src/reader/wgsl/parser_impl_exclusive_or_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_for_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_function_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_function_decoration_list_test.cc",
+    "../src/reader/wgsl/parser_impl_function_decoration_test.cc",
+    "../src/reader/wgsl/parser_impl_function_header_test.cc",
+    "../src/reader/wgsl/parser_impl_function_type_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_global_constant_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_global_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_global_variable_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_if_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_image_storage_type_test.cc",
+    "../src/reader/wgsl/parser_impl_inclusive_or_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_logical_and_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_logical_or_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_loop_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_multiplicative_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_param_list_test.cc",
+    "../src/reader/wgsl/parser_impl_paren_rhs_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_pipeline_stage_test.cc",
+    "../src/reader/wgsl/parser_impl_postfix_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_primary_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_relational_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_sampled_texture_type_test.cc",
+    "../src/reader/wgsl/parser_impl_sampler_type_test.cc",
+    "../src/reader/wgsl/parser_impl_shift_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_statement_test.cc",
+    "../src/reader/wgsl/parser_impl_statements_test.cc",
+    "../src/reader/wgsl/parser_impl_storage_class_test.cc",
+    "../src/reader/wgsl/parser_impl_storage_texture_type_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_body_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_decoration_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_member_decoration_test.cc",
+    "../src/reader/wgsl/parser_impl_struct_member_test.cc",
+    "../src/reader/wgsl/parser_impl_switch_body_test.cc",
+    "../src/reader/wgsl/parser_impl_switch_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_test.cc",
+    "../src/reader/wgsl/parser_impl_test_helper.cc",
+    "../src/reader/wgsl/parser_impl_test_helper.h",
+    "../src/reader/wgsl/parser_impl_texture_sampler_types_test.cc",
+    "../src/reader/wgsl/parser_impl_type_alias_test.cc",
+    "../src/reader/wgsl/parser_impl_type_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_unary_expression_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_decoration_list_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_decoration_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_ident_decl_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_stmt_test.cc",
+    "../src/reader/wgsl/parser_impl_variable_storage_decoration_test.cc",
+    "../src/reader/wgsl/parser_test.cc",
+    "../src/reader/wgsl/token_test.cc",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_wgsl_reader_src",
+  ]
+}
+
+source_set("tint_unittests_wgsl_writer_src") {
+  sources = [
+    "../src/writer/wgsl/generator_impl_alias_type_test.cc",
+    "../src/writer/wgsl/generator_impl_array_accessor_test.cc",
+    "../src/writer/wgsl/generator_impl_assign_test.cc",
+    "../src/writer/wgsl/generator_impl_binary_test.cc",
+    "../src/writer/wgsl/generator_impl_bitcast_test.cc",
+    "../src/writer/wgsl/generator_impl_block_test.cc",
+    "../src/writer/wgsl/generator_impl_break_test.cc",
+    "../src/writer/wgsl/generator_impl_call_test.cc",
+    "../src/writer/wgsl/generator_impl_case_test.cc",
+    "../src/writer/wgsl/generator_impl_cast_test.cc",
+    "../src/writer/wgsl/generator_impl_constructor_test.cc",
+    "../src/writer/wgsl/generator_impl_continue_test.cc",
+    "../src/writer/wgsl/generator_impl_discard_test.cc",
+    "../src/writer/wgsl/generator_impl_entry_point_test.cc",
+    "../src/writer/wgsl/generator_impl_fallthrough_test.cc",
+    "../src/writer/wgsl/generator_impl_function_test.cc",
+    "../src/writer/wgsl/generator_impl_global_decl_test.cc",
+    "../src/writer/wgsl/generator_impl_identifier_test.cc",
+    "../src/writer/wgsl/generator_impl_if_test.cc",
+    "../src/writer/wgsl/generator_impl_loop_test.cc",
+    "../src/writer/wgsl/generator_impl_member_accessor_test.cc",
+    "../src/writer/wgsl/generator_impl_return_test.cc",
+    "../src/writer/wgsl/generator_impl_switch_test.cc",
+    "../src/writer/wgsl/generator_impl_test.cc",
+    "../src/writer/wgsl/generator_impl_type_test.cc",
+    "../src/writer/wgsl/generator_impl_unary_op_test.cc",
+    "../src/writer/wgsl/generator_impl_variable_decl_statement_test.cc",
+    "../src/writer/wgsl/generator_impl_variable_test.cc",
+    "../src/writer/wgsl/test_helper.h",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_wgsl_writer_src",
+  ]
+}
+
+source_set("tint_unittests_msl_writer_src") {
+  sources = [
+    "../src/transform/msl_test.cc",
+    "../src/writer/msl/generator_impl_alias_type_test.cc",
+    "../src/writer/msl/generator_impl_array_accessor_test.cc",
+    "../src/writer/msl/generator_impl_assign_test.cc",
+    "../src/writer/msl/generator_impl_binary_test.cc",
+    "../src/writer/msl/generator_impl_bitcast_test.cc",
+    "../src/writer/msl/generator_impl_block_test.cc",
+    "../src/writer/msl/generator_impl_break_test.cc",
+    "../src/writer/msl/generator_impl_call_test.cc",
+    "../src/writer/msl/generator_impl_case_test.cc",
+    "../src/writer/msl/generator_impl_cast_test.cc",
+    "../src/writer/msl/generator_impl_constructor_test.cc",
+    "../src/writer/msl/generator_impl_continue_test.cc",
+    "../src/writer/msl/generator_impl_discard_test.cc",
+    "../src/writer/msl/generator_impl_function_entry_point_data_test.cc",
+    "../src/writer/msl/generator_impl_function_test.cc",
+    "../src/writer/msl/generator_impl_identifier_test.cc",
+    "../src/writer/msl/generator_impl_if_test.cc",
+    "../src/writer/msl/generator_impl_import_test.cc",
+    "../src/writer/msl/generator_impl_intrinsic_test.cc",
+    "../src/writer/msl/generator_impl_intrinsic_texture_test.cc",
+    "../src/writer/msl/generator_impl_loop_test.cc",
+    "../src/writer/msl/generator_impl_member_accessor_test.cc",
+    "../src/writer/msl/generator_impl_module_constant_test.cc",
+    "../src/writer/msl/generator_impl_return_test.cc",
+    "../src/writer/msl/generator_impl_switch_test.cc",
+    "../src/writer/msl/generator_impl_test.cc",
+    "../src/writer/msl/generator_impl_type_test.cc",
+    "../src/writer/msl/generator_impl_unary_op_test.cc",
+    "../src/writer/msl/generator_impl_variable_decl_statement_test.cc",
+    "../src/writer/msl/test_helper.h",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_msl_writer_src",
+  ]
+}
+
+source_set("tint_unittests_hlsl_writer_src") {
+  sources = [
+    "../src/transform/hlsl_test.cc",
+    "../src/writer/hlsl/generator_impl_alias_type_test.cc",
+    "../src/writer/hlsl/generator_impl_array_accessor_test.cc",
+    "../src/writer/hlsl/generator_impl_assign_test.cc",
+    "../src/writer/hlsl/generator_impl_binary_test.cc",
+    "../src/writer/hlsl/generator_impl_bitcast_test.cc",
+    "../src/writer/hlsl/generator_impl_block_test.cc",
+    "../src/writer/hlsl/generator_impl_break_test.cc",
+    "../src/writer/hlsl/generator_impl_call_test.cc",
+    "../src/writer/hlsl/generator_impl_case_test.cc",
+    "../src/writer/hlsl/generator_impl_cast_test.cc",
+    "../src/writer/hlsl/generator_impl_constructor_test.cc",
+    "../src/writer/hlsl/generator_impl_continue_test.cc",
+    "../src/writer/hlsl/generator_impl_discard_test.cc",
+    "../src/writer/hlsl/generator_impl_function_entry_point_data_test.cc",
+    "../src/writer/hlsl/generator_impl_function_test.cc",
+    "../src/writer/hlsl/generator_impl_identifier_test.cc",
+    "../src/writer/hlsl/generator_impl_if_test.cc",
+    "../src/writer/hlsl/generator_impl_import_test.cc",
+    "../src/writer/hlsl/generator_impl_intrinsic_test.cc",
+    "../src/writer/hlsl/generator_impl_intrinsic_texture_test.cc",
+    "../src/writer/hlsl/generator_impl_loop_test.cc",
+    "../src/writer/hlsl/generator_impl_member_accessor_test.cc",
+    "../src/writer/hlsl/generator_impl_module_constant_test.cc",
+    "../src/writer/hlsl/generator_impl_return_test.cc",
+    "../src/writer/hlsl/generator_impl_sanitizer_test.cc",
+    "../src/writer/hlsl/generator_impl_switch_test.cc",
+    "../src/writer/hlsl/generator_impl_test.cc",
+    "../src/writer/hlsl/generator_impl_type_test.cc",
+    "../src/writer/hlsl/generator_impl_unary_op_test.cc",
+    "../src/writer/hlsl/generator_impl_variable_decl_statement_test.cc",
+    "../src/writer/hlsl/namer_test.cc",
+    "../src/writer/hlsl/test_helper.cc",
+    "../src/writer/hlsl/test_helper.h",
+  ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_core_src",
+    "${tint_root_dir}/src:libtint_hlsl_writer_src",
+  ]
+}
+
+source_set("tint_unittests_src") {
+  testonly = true
+
+  deps = [ ":tint_unittests_core_src" ]
+
+  if (tint_build_spv_reader) {
+    deps += [ ":tint_unittests_spv_reader_src" ]
+  }
+
+  if (tint_build_spv_writer) {
+    deps += [ ":tint_unittests_spv_writer_src" ]
+  }
+
+  if (tint_build_wgsl_reader) {
+    deps += [ ":tint_unittests_wgsl_reader_src" ]
+  }
+
+  if (tint_build_wgsl_writer) {
+    deps += [ ":tint_unittests_wgsl_writer_src" ]
+  }
+
+  if (tint_build_msl_writer) {
+    deps += [ ":tint_unittests_msl_writer_src" ]
+  }
+
+  if (tint_build_hlsl_writer) {
+    deps += [ ":tint_unittests_hlsl_writer_src" ]
+  }
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}
+
+test("tint_unittests") {
+  deps = [
+    ":gmock_and_gtest",
+    ":tint_unittests_src",
+    "${tint_spirv_tools_dir}/:spvtools",
+    "${tint_spirv_tools_dir}/:spvtools_opt",
+    "${tint_spirv_tools_dir}/:spvtools_val",
+  ]
+
+  deps += [ ":tint_unittests_main" ]
+
+  configs += [ ":tint_unittests_config" ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  testonly = true
+}