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DougGregorDougGregor
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Merge pull request #1251 from keith/ks/add-bazel-configuration
Add bazel configuration
2 parents cb3f64d + 0a73615 commit 0535623

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‎.bazelrc

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common --enable_bzlmod
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test --test_output=errors

‎.bazelversion

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6.0.0

‎.gitignore

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UserInterfaceState.xcuserstate
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xcuserdata/
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# Ignore bazel symlinks
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/bazel-*
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# We always build swiftSyntax of trunk dependencies. Ignore any fixed
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# dependency versions.
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Package.resolved

‎BUILD.bazel

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load("//utils/bazel:swift_syntax_library.bzl", "swift_syntax_library")
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package(default_visibility = ["//visibility:public"])
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swift_syntax_library(
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name = "SwiftSyntax",
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deps = [],
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)
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swift_syntax_library(
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name = "SwiftBasicFormat",
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deps = [
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":SwiftSyntax",
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],
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)
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swift_syntax_library(
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name = "SwiftDiagnostics",
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deps = [
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":SwiftSyntax",
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],
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)
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swift_syntax_library(
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name = "SwiftParser",
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deps = [
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":SwiftBasicFormat",
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":SwiftDiagnostics",
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":SwiftSyntax",
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],
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)
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swift_syntax_library(
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name = "SwiftParserDiagnostics",
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deps = [
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":SwiftBasicFormat",
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":SwiftDiagnostics",
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":SwiftParser",
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":SwiftSyntax",
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],
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)
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swift_syntax_library(
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name = "SwiftSyntaxBuilder",
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deps = [
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":SwiftBasicFormat",
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":SwiftParser",
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":SwiftParserDiagnostics",
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":SwiftSyntax",
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],
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)
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swift_syntax_library(
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name = "SwiftOperators",
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deps = [
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":SwiftDiagnostics",
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":SwiftParser",
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":SwiftSyntax",
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],
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)

‎MODULE.bazel

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module(
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name = "swift-syntax",
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version = "0.50800.0",
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compatibility_level = 1,
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)
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bazel_dep(name = "rules_swift", version = "1.5.1", repo_name = "build_bazel_rules_swift")

‎README.md

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If you should hit any issues while using SwiftSyntax, we appreciate bug reports on [GitHub Issue](https://github.com/apple/swift-syntax/issues).
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## Bazel
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SwiftSyntax provides an experimental [Bazel](https://bazel.build) build configuration, maintained by Keith Smiley.
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To use it you can pull the source archive from the relevant release tag
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into your `WORKSPACE` and depend on the libraries you need from the
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[`BUILD.bazel`](BUILD.bazel) file. Each library also has an associated
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`Library_opt` target (such as `SwiftSyntax_opt`) which forces
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SwiftSyntax to always build with optimizations enabled. This may help
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local runtime performance at the cost of debuggability, and initial
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build time. Please tag any [issues](https://github.com/apple/swift-syntax/issues) related to the Bazel configuration with the label "Bazel".
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## License
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Please see [LICENSE](LICENSE.txt) for more information.

‎WORKSPACE

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‎utils/bazel/BUILD.bazel

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‎utils/bazel/opt_wrapper.bzl

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"""
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A rule for forcing all dependent targets to be built in the opt configuration
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This is useful when you're using 'bazel run' with a target, but still want the
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benefits of compiler optimizations.
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"""
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load("@build_bazel_rules_swift//swift:swift.bzl", "SwiftInfo")
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def _force_opt_impl(settings, _attr):
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return {
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"//command_line_option:compilation_mode": "opt",
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"//command_line_option:features": settings["//command_line_option:features"] + [
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"-swift.opt_uses_osize",
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"swift.opt_uses_wmo",
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],
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}
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_force_opt = transition(
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implementation = _force_opt_impl,
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inputs = [
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"//command_line_option:features",
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],
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outputs = [
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"//command_line_option:compilation_mode",
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"//command_line_option:features",
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],
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)
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def _impl(ctx):
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dep = ctx.attr.dep[0]
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return [
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dep[CcInfo],
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dep[DefaultInfo],
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dep[SwiftInfo],
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]
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opt_wrapper = rule(
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implementation = _impl,
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attrs = {
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"dep": attr.label(cfg = _force_opt, mandatory = True),
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"_allowlist_function_transition": attr.label(
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default = "@bazel_tools//tools/allowlists/function_transition_allowlist",
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),
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},
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)

‎utils/bazel/swift_syntax_library.bzl

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"""Convenience wrapper for swift_library targets using this repo's conventions"""
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load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
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load(":opt_wrapper.bzl", "opt_wrapper")
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def swift_syntax_library(name, deps):
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swift_library(
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name = name,
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srcs = native.glob(
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["Sources/{}/**/*.swift".format(name)],
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exclude = ["**/*.docc/**"],
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allow_empty = False,
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),
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module_name = name,
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deps = deps,
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)
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opt_wrapper(
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name = name + "_opt",
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dep = name,
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)

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