Implement swift functions in Bazel [BUILD-317]

swift_targets.bzl

@@ -0,0 +1,233 @@
+def swift_get_compile_options(
+        exceptions = None,
+        rtti = None,
+        warning = None,
+        add_compile_options = None,
+        remove_compile_options = None,
+        cxx_standard = None,
+        c_standard = None):
+    if add_compile_options == None:
+        add_compile_options = []
+    if remove_compile_options == None:
+        remove_compile_options = []
+
+    for flag in add_compile_options + remove_compile_options:
+        if flag == "-fexceptions":
+            fail("Do not specify -fexceptions directly, use 'exceptions' argument instead")
+        if flag == "-fno-exceptions":
+            fail("Do not specify -fno-exceptions directly, avoid 'exceptions' argument instead")
+        if flag == "-frtti":
+            fail("Do not specify -frtti directly, use 'rtti' argument instead")
+        if flag == "-fno-rtti":
+            fail("Do not specify -fno-rtti directly, avoid 'rtti' argument instead")
+        if flag == "-Wno-error":
+            fail("Do not specify -Wno-error directly, use 'warning' to disable -Werror")
+
+    all_flags = []
+
+    if not warning:
+        all_flags += ["-Werror", "-Wno-error=deprecated-declarations"]
+
+    # '-Wall' '-Wunused-but-set-parameter' '-Wno-free-nonheap-object' flags are set by default by bazel
+    all_flags += [
+        "-Wcast-align",
+        "-Wcast-qual",
+        "-Wchar-subscripts",
+        "-Wcomment",
+        "-Wconversion",
+        "-Wdisabled-optimization",
+        "-Wextra",
+        "-Wfloat-equal",
+        "-Wformat",
+        "-Wformat-security",
+        "-Wformat-y2k",
+        "-Wimplicit-fallthrough",
+        "-Wimport",
+        "-Winit-self",
+        "-Winvalid-pch",
+        "-Wmissing-braces",
+        "-Wmissing-field-initializers",
+        # "-Wmissing-include-dirs",
+        "-Wparentheses",
+        "-Wpointer-arith",
+        "-Wredundant-decls",
+        "-Wreturn-type",
+        "-Wsequence-point",
+        "-Wshadow",
+        "-Wsign-compare",
+        "-Wstack-protector",
+        "-Wswitch",
+        "-Wswitch-default",
+        "-Wswitch-enum",
+        "-Wtrigraphs",
+        "-Wuninitialized",
+        "-Wunknown-pragmas",
+        "-Wunreachable-code",
+        "-Wunused",
+        "-Wunused-function",
+        "-Wunused-label",
+        "-Wunused-parameter",
+        "-Wunused-value",
+        "-Wunused-variable",
+        "-Wvolatile-register-var",
+        "-Wwrite-strings",
+    ]
+
+    if remove_compile_options:
+        for flag in remove_compile_options:
+            if not flag in all_flags:
+                fail("Compiler flag '%s' specified for removal is not part of the set of common compiler flags" % flag)
+            all_flags.remove(flag)
+
+    all_flags += add_compile_options
+
+    if exceptions:
+        all_flags.append("-fexceptions")
+    else:
+        all_flags.append("-fno-exceptions")
+
+    if cxx_standard:
+        all_flags.append("-std=c++" + cxx_standard)
+
+    if c_standard:
+        all_flags.append("-std=c" + c_standard)
+
+    return all_flags
+
+def swift_cc_library(
+        name,
+        srcs = None,
+        hdrs = None,
+        includes = None,
+        textual_hdrs = None,
+        visibility = None,
+        deps = None,
+        add_compile_options = None,
+        remove_compile_options = None,
+        cxx_standard = None,
+        c_standard = None):
+    if add_compile_options == None:
+        add_compile_options = []
+    add_compile_options.append("-pedantic")
+    copts = swift_get_compile_options(
+        add_compile_options = add_compile_options,
+        remove_compile_options = remove_compile_options,
+        cxx_standard = cxx_standard,
+        c_standard = c_standard,
+    )
+    native.cc_library(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        copts = copts,
+        deps = deps,
+        visibility = visibility,
+        includes = includes,
+        textual_hdrs = textual_hdrs,
+    )
+
+def swift_cc_tool_library(
+        name,
+        srcs = None,
+        hdrs = None,
+        includes = None,
+        textual_hdrs = None,
+        visibility = None,
+        deps = None,
+        add_compile_options = None,
+        remove_compile_options = None,
+        cxx_standard = None,
+        c_standard = None):
+    copts = swift_get_compile_options(
+        add_compile_options = add_compile_options,
+        remove_compile_options = remove_compile_options,
+        cxx_standard = cxx_standard,
+        c_standard = c_standard,
+    )
+    native.cc_library(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        copts = copts,
+        deps = deps,
+        visibility = visibility,
+        includes = includes,
+        textual_hdrs = textual_hdrs,
+    )
+
+def swift_cc_binary(
+        name,
+        srcs = None,
+        hdrs = None,
+        includes = None,
+        visibility = None,
+        deps = None,
+        add_compile_options = None,
+        remove_compile_options = None,
+        cxx_standard = None,
+        c_standard = None):
+    if add_compile_options == None:
+        add_compile_options = []
+    add_compile_options.append("-pedantic")
+    copts = swift_get_compile_options(
+        add_compile_options = add_compile_options,
+        remove_compile_options = remove_compile_options,
+        cxx_standard = cxx_standard,
+        c_standard = c_standard,
+    )
+    native.cc_binary(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        copts = copts,
+        deps = deps,
+        visibility = visibility,
+        includes = includes,
+    )
+
+def swift_cc_tool(
+        name,
+        srcs = None,
+        hdrs = None,
+        includes = None,
+        visibility = None,
+        deps = None,
+        add_compile_options = None,
+        remove_compile_options = None,
+        cxx_standard = None,
+        c_standard = None):
+    copts = swift_get_compile_options(
+        add_compile_options = add_compile_options,
+        remove_compile_options = remove_compile_options,
+        cxx_standard = cxx_standard,
+        c_standard = c_standard,
+    )
+    native.cc_binary(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        copts = copts,
+        includes = includes,
+        visibility = visibility,
+        deps = deps,
+    )
+
+def swift_cc_test(
+        name,
+        srcs = None,
+        hdrs = None,
+        data = None,
+        includes = None,
+        visibility = None,
+        deps = None,
+        add_compile_options = None):
+    native.cc_test(
+        name = name,
+        srcs = srcs,
+        hdrs = hdrs,
+        copts = add_compile_options,
+        data = data,
+        includes = includes,
+        visibility = visibility,
+        deps = deps,
+    )