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miri: enable crate features #18

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miri: enable crate features #18

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14 changes: 13 additions & 1 deletion rust/private/miri.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -165,10 +165,13 @@ def _script_content(ctx, *, crate, dep_info, miri_toolchain, is_test, miri_flags
"done",
])

crate_features = ['feature="{}"'.format(feature) for feature in getattr(ctx.attr, "crate_features", [])]
cfgs = crate.cfgs + crate_features

lines.append("")
lines.extend(_emit_shell_array("extern_specs", extern_specs))
lines.extend(_emit_shell_array("dependency_outputs", dependency_outputs))
lines.extend(_emit_shell_array("cfg_values", crate.cfgs))
lines.extend(_emit_shell_array("cfg_values", cfgs))
lines.extend(_emit_shell_array("miri_flags", miri_flags))
lines.extend(_emit_shell_array("launcher_args", ctx.attr.miri_args))
lines.extend([
Expand Down Expand Up @@ -311,6 +314,15 @@ _MIRI_COMMON_ATTRS = {
wrapped target already carries any test-only dependencies.
"""),
),
"crate_features": attr.string_list(
doc = dedent("""\
List of features to enable for this crate.

Features are defined in the code using the `#[cfg(feature = "foo")]`
configuration option. The features listed here will be passed to `rustc`
with `--cfg feature="${feature_name}"` flags.
"""),
),
"env": attr.string_dict(
doc = "Additional runtime environment variables for the generated launcher.",
),
Expand Down
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