mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
eac7c2bda4
This was an offshoot of the discussion about how much boilerplate we could remove. lit requires RUN lines be there, everything else is optional.
77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
__copyright__ = """
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Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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Exceptions. See /LICENSE for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""
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import lit.formats
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import os
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from pathlib import Path
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# This is a provided variable, ignore the undefined name warning.
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config = config # noqa: F821
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def fullpath(relative_path):
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return Path(os.environ["TEST_SRCDIR"]).joinpath(relative_path)
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def add_substitution(before, after):
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"""Adds a substitution to the config. Wraps before as `%{before}`."""
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config.substitutions.append((f"%{{{before}}}", after))
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def add_substitutions():
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"""Adds required substitutions to the config."""
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tools = {
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"carbon": fullpath("carbon/toolchain/driver/carbon"),
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"explorer": fullpath("carbon/explorer/explorer"),
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"explorer_prelude": fullpath("carbon/explorer/data/prelude.carbon"),
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"filecheck": fullpath("llvm-project/llvm/FileCheck"),
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"not": fullpath("llvm-project/llvm/not"),
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"merge_output": fullpath("carbon/bazel/testing/merge_output"),
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}
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run_carbon = f"{tools['merge_output']} {tools['carbon']}"
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run_explorer = (
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f"{tools['merge_output']} {tools['explorer']} %s "
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f"--prelude={tools['explorer_prelude']}"
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)
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filecheck_allow_unmatched = (
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f"{tools['filecheck']} %s --match-full-lines --strict-whitespace"
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)
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filecheck_strict = (
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f"{filecheck_allow_unmatched} --implicit-check-not={{{{.}}}}"
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)
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add_substitution("carbon", f"{tools['merge_output']} {tools['carbon']}")
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add_substitution(
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"carbon-run-parser",
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f"{run_carbon} dump parse-tree %s | {filecheck_strict}",
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)
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add_substitution(
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"carbon-run-semantics",
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f"{run_carbon} dump semantics-ir %s | {filecheck_strict}",
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)
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add_substitution(
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"carbon-run-tokens", f"{run_carbon} dump tokens %s | {filecheck_strict}"
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)
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add_substitution(
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"explorer-run",
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f"{run_explorer} | {filecheck_strict}",
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)
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add_substitution(
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"explorer-run-trace",
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f"{run_explorer} --parser_debug --trace_file=- | "
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f"{filecheck_allow_unmatched}",
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)
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add_substitution("FileCheck-strict", filecheck_strict)
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add_substitution("not", tools["not"])
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config.name = "lit"
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config.suffixes = [".carbon"]
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config.test_format = lit.formats.ShTest()
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add_substitutions()
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