| """Alias that transitions its target to `compilation_mode=opt`. Use `transition_alias="opt"` to enable.""" |
| |
| load("@rules_cc//cc:defs.bzl", "CcInfo") |
| load("@rules_rust//rust:rust_common.bzl", "COMMON_PROVIDERS") |
| |
| def _transition_alias_impl(ctx): |
| # `ctx.attr.actual` is a list of 1 item due to the transition |
| providers = [ctx.attr.actual[0][provider] for provider in COMMON_PROVIDERS] |
| if CcInfo in ctx.attr.actual[0]: |
| providers.append(ctx.attr.actual[0][CcInfo]) |
| return providers |
| |
| def _change_compilation_mode(compilation_mode): |
| def _change_compilation_mode_impl(_settings, _attr): |
| return { |
| "//command_line_option:compilation_mode": compilation_mode, |
| } |
| |
| return transition( |
| implementation = _change_compilation_mode_impl, |
| inputs = [], |
| outputs = [ |
| "//command_line_option:compilation_mode", |
| ], |
| ) |
| |
| def _transition_alias_rule(compilation_mode): |
| return rule( |
| implementation = _transition_alias_impl, |
| provides = COMMON_PROVIDERS, |
| attrs = { |
| "actual": attr.label( |
| mandatory = True, |
| doc = "`rust_library()` target to transition to `compilation_mode=opt`.", |
| providers = COMMON_PROVIDERS, |
| cfg = _change_compilation_mode(compilation_mode), |
| ), |
| "_allowlist_function_transition": attr.label( |
| default = "@bazel_tools//tools/allowlists/function_transition_allowlist", |
| ), |
| }, |
| doc = "Transitions a Rust library crate to the `compilation_mode=opt`.", |
| ) |
| |
| transition_alias_dbg = _transition_alias_rule("dbg") |
| transition_alias_fastbuild = _transition_alias_rule("fastbuild") |
| transition_alias_opt = _transition_alias_rule("opt") |
