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rustc: Lift output file name handling out of main

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This commit is contained in:
Haitao Li 2011-10-28 15:53:57 +08:00 committed by Brian Anderson
parent 7bb9a54c73
commit a81fdf0a5a
1 changed files with 53 additions and 40 deletions
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93
src/comp/driver/rustc.rs
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@ -438,6 +438,53 @@ fn opts() -> [getopts::opt] {
optflag("stack-growth"), optflag("check-unsafe")];
}
fn build_output_filenames(ifile: str, ofile: option::t<str>,
sopts: @session::options)
-> @{out_filename: str, obj_filename:str} {
let obj_filename = "";
let saved_out_filename: str = "";
let stop_after_codegen =
sopts.output_type != link::output_type_exe ||
sopts.static && sopts.library;
alt ofile {
none. {
// "-" as input file will cause the parser to read from stdin so we
// have to make up a name
// We want to toss everything after the final '.'
let parts =
if !input_is_stdin(ifile) {
str::split(ifile, '.' as u8)
} else { ["default", "rs"] };
vec::pop(parts);
let base_filename = str::connect(parts, ".");
let suffix =
alt sopts.output_type {
link::output_type_none. { "none" }
link::output_type_bitcode. { "bc" }
link::output_type_assembly. { "s" }
// Object and exe output both use the '.o' extension here
link::output_type_object. | link::output_type_exe. {
"o"
}
};
obj_filename = base_filename + "." + suffix;
if sopts.library {
saved_out_filename = std::os::dylib_filename(base_filename);
} else {
saved_out_filename = base_filename;
}
}
some(out_file) {
// FIXME: what about windows? This will create a foo.exe.o.
saved_out_filename = out_file;
obj_filename =
if stop_after_codegen { out_file } else { out_file + ".o" };
}
}
ret @{out_filename: saved_out_filename, obj_filename: obj_filename};
}
fn main(args: [str]) {
let binary = vec::shift(args);
let match =
@ -459,14 +506,14 @@ fn main(args: [str]) {
let sopts = build_session_options(match);
let sess = build_session(sopts);
let n_inputs = vec::len::<str>(match.free);
let output_file = getopts::opt_maybe_str(match, "o");
let ofile = getopts::opt_maybe_str(match, "o");
let ifile = match.free[0];
let outputs = build_output_filenames(ifile, ofile, sopts);
if n_inputs == 0u {
sess.fatal("No input filename given.");
} else if n_inputs > 1u {
sess.fatal("Multiple input filenames provided.");
}
let ifile = match.free[0];
let saved_out_filename: str = "";
let cfg = build_configuration(sess, binary, ifile);
let pretty =
option::map::<str,
@ -484,47 +531,13 @@ fn main(args: [str]) {
sopts.output_type != link::output_type_exe ||
sopts.static && sopts.library;
let ofile = "";
alt output_file {
none. {
// "-" as input file will cause the parser to read from stdin so we
// have to make up a name
// We want to toss everything after the final '.'
let parts =
if !input_is_stdin(ifile) {
str::split(ifile, '.' as u8)
} else { ["default", "rs"] };
vec::pop(parts);
let base_filename = str::connect(parts, ".");
let suffix =
alt sopts.output_type {
link::output_type_none. { "none" }
link::output_type_bitcode. { "bc" }
link::output_type_assembly. { "s" }
// Object and exe output both use the '.o' extension here
link::output_type_object. | link::output_type_exe. {
"o"
}
};
ofile = base_filename + "." + suffix;
let temp_filename = outputs.obj_filename;
if sopts.library {
saved_out_filename = std::os::dylib_filename(base_filename);
} else {
saved_out_filename = base_filename;
}
}
some(out_file) {
saved_out_filename = out_file;
ofile =
if !stop_after_codegen { out_file + ".o" } else { out_file };
}
}
compile_input(sess, cfg, ifile, temp_filename);
compile_input(sess, cfg, ifile, ofile);
if stop_after_codegen { ret; }
link::link_binary(sess, ofile, saved_out_filename);
link::link_binary(sess, temp_filename, outputs.out_filename);
}
#[cfg(test)]