78 lines
3.2 KiB
Python
78 lines
3.2 KiB
Python
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"""Test runner for data-flow analysis test cases."""
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from __future__ import annotations
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import os.path
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from mypy.errors import CompileError
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from mypy.test.config import test_temp_dir
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from mypy.test.data import DataDrivenTestCase
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from mypyc.analysis import dataflow
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from mypyc.common import TOP_LEVEL_NAME
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from mypyc.ir.func_ir import all_values
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from mypyc.ir.ops import Value
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from mypyc.ir.pprint import format_func, generate_names_for_ir
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from mypyc.test.testutil import (
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ICODE_GEN_BUILTINS,
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MypycDataSuite,
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assert_test_output,
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build_ir_for_single_file,
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use_custom_builtins,
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)
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from mypyc.transform import exceptions
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files = ["analysis.test"]
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class TestAnalysis(MypycDataSuite):
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files = files
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base_path = test_temp_dir
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optional_out = True
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def run_case(self, testcase: DataDrivenTestCase) -> None:
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"""Perform a data-flow analysis test case."""
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with use_custom_builtins(os.path.join(self.data_prefix, ICODE_GEN_BUILTINS), testcase):
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try:
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ir = build_ir_for_single_file(testcase.input)
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except CompileError as e:
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actual = e.messages
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else:
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actual = []
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for fn in ir:
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if fn.name == TOP_LEVEL_NAME and not testcase.name.endswith("_toplevel"):
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continue
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exceptions.insert_exception_handling(fn)
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actual.extend(format_func(fn))
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cfg = dataflow.get_cfg(fn.blocks)
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args: set[Value] = set(fn.arg_regs)
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name = testcase.name
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if name.endswith("_MaybeDefined"):
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# Forward, maybe
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analysis_result = dataflow.analyze_maybe_defined_regs(fn.blocks, cfg, args)
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elif name.endswith("_Liveness"):
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# Backward, maybe
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analysis_result = dataflow.analyze_live_regs(fn.blocks, cfg)
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elif name.endswith("_MustDefined"):
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# Forward, must
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analysis_result = dataflow.analyze_must_defined_regs(
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fn.blocks, cfg, args, regs=all_values(fn.arg_regs, fn.blocks)
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)
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elif name.endswith("_BorrowedArgument"):
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# Forward, must
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analysis_result = dataflow.analyze_borrowed_arguments(fn.blocks, cfg, args)
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else:
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assert False, "No recognized _AnalysisName suffix in test case"
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names = generate_names_for_ir(fn.arg_regs, fn.blocks)
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for key in sorted(
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analysis_result.before.keys(), key=lambda x: (x[0].label, x[1])
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):
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pre = ", ".join(sorted(names[reg] for reg in analysis_result.before[key]))
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post = ", ".join(sorted(names[reg] for reg in analysis_result.after[key]))
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actual.append(
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"%-8s %-23s %s" % ((key[0].label, key[1]), "{%s}" % pre, "{%s}" % post)
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)
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assert_test_output(testcase, actual, "Invalid source code output")
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