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Add -o flag for compile options #101

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Add -o flag for compile options #101

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55e2af4
Generate file with file name
May 5, 2018
c4228ab
Update -o option behavior
May 23, 2018
076f3b5
Merge branch 'master' into output_binary
splasky Aug 5, 2019
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Update -o option behavior 
Print error message when use -o option but not enter file name argument.
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splasky committed May 24, 2018
commit c4228ab24c671013808d08deed9a014f07afdfc6
1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -80,6 80,7 @@ Many thanks to our current and past contributers:
* [TBladen](https://github.com/tbladen)
* [christian-stephen](https://github.com/christian-stephen)
* [jubnzv](https://github.com/jubnzv)
* [splasky](https://github.com/splasky)

## References
- [ShivC](https://github.com/ShivamSarodia/ShivC) - ShivyC is a rewrite from scratch of my old C compiler, ShivC, with much more emphasis on feature completeness and code quality. See the ShivC README for more details.
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15 changes: 10 additions & 5 deletions shivyc/main.py
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Expand Up @@ -35,8 35,10 @@ def main():
else:
# set the output ELF name
out = "out"
if arguments.output_name is not None:
out = arguments.output_name
if arguments.output_name is not None and \
len(arguments.output_name) == 1:
# set the output ELF name
out = arguments.output_name[0]
if not link(out, objs):
err = "linker returned non-zero status"
print(CompilerError(err))
Expand Down Expand Up @@ -113,7 115,9 @@ def get_arguments():
desc = """Compile, assemble, and link C files. Option flags starting
with `-z` are primarily for debugging or diagnostic purposes."""
parser = argparse.ArgumentParser(
description=desc, usage="shivyc [-h] [options] files...")
prog='ShivyC',
description=desc,
usage="shivyc [-h] [options] files...")

# Files to compile
parser.add_argument("files", metavar="files", nargs=" ")
Expand All @@ -122,11 126,12 @@ def get_arguments():
parser.add_argument("-z-reg-alloc-perf",
help="display register allocator performance info",
dest="show_reg_alloc_perf", action="store_true")
# Generate binary file with file name
parser.add_argument(
"-o",
nargs="?",
nargs=1,
metavar="file",
help="Place output into <file>",
help="place output into <file>",
dest="output_name")

return parser.parse_args()
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