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This implements a C code generator that emits code that is (almost) identical to the classic 'rpcgen' program. The key differences are: - Skip inlining of calls for struct fields - Skip K&R style function prototypes in headers - Use int64_t instead of quad_t for OS portability - Saner whitespace / indentation The tests/demo.c and tests/demo.h files were created using the traditional 'rpcgen' program, and then editted to cut out the leading boilerplate, and the differences mentioned above. Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
56 lines
1.3 KiB
Python
56 lines
1.3 KiB
Python
# SPDX-License-Identifier: LGPL-2.1-or-later
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import os
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from pathlib import Path
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from rpcgen.parser import XDRParser
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from rpcgen.generator import (
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XDRTypeDeclarationGenerator,
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XDRMarshallDeclarationGenerator,
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XDRMarshallImplementationGenerator,
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)
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def test_generate_header():
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x = Path(Path(__file__).parent, "demo.x")
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h = Path(Path(__file__).parent, "demo.h")
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with x.open("r") as fp:
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parser = XDRParser(fp)
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spec = parser.parse()
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got = (
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XDRTypeDeclarationGenerator(spec).visit()
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+ "\n"
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+ XDRMarshallDeclarationGenerator(spec).visit()
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)
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with h.open("r") as fp:
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want = fp.read()
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if "VIR_TEST_REGENERATE_OUTPUT" in os.environ:
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want = got
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with h.open("w") as fp:
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fp.write(want)
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assert got == want
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def test_generate_source():
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x = Path(Path(__file__).parent, "demo.x")
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h = Path(Path(__file__).parent, "demo.c")
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with x.open("r") as fp:
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parser = XDRParser(fp)
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spec = parser.parse()
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got = XDRMarshallImplementationGenerator(spec).visit()
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with h.open("r") as fp:
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want = fp.read()
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if "VIR_TEST_REGENERATE_OUTPUT" in os.environ:
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want = got
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with h.open("w") as fp:
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fp.write(want)
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assert got == want
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