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const std = @import("std");
const tok = @import("tokenize.zig");
const gftCompilerError = error{NoInputFile};
pub fn main() !void {
if (std.os.argv.len != 2) return gftCompilerError.NoInputFile;
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
var args = std.process.args();
_ = args.skip();
const inputFileName = args.next();
const inputFile = try std.fs.cwd().openFile(inputFileName.?, .{});
defer inputFile.close();
std.fs.cwd().makeDir("out") catch |err| {
if (err != error.PathAlreadyExists) return err;
};
const outfile = try std.fs.cwd().createFile("out/out.asm", .{});
const outWriter = outfile.writer();
defer outfile.close();
// Logic here to compile language
const all = try inputFile.readToEndAlloc(gpa.allocator(), 2048);
defer gpa.allocator().free(all);
const toks = try tok.tokenize(gpa.allocator(), all);
defer gpa.allocator().free(toks);
var tokIter = tok.TokenIterator{ .tokens = toks };
try outWriter.print("global _start:\n", .{});
while (tokIter.next()) |t| {
switch (t) {
.ret => {
const num = tokIter.next();
switch (num.?) {
.intLit => {},
else => break,
}
switch (tokIter.next().?) {
.semiCol => {},
else => break,
}
try outWriter.print(
\\ mov rax, 60
\\ mov rdi, {}
\\ syscall
\\
, .{num.?.intLit});
gpa.allocator().free(t.ret);
},
else => {},
}
}
const nasmargv = [_][]const u8{ "nasm", "-felf64", "out/out.asm" };
const nasmproc = try std.ChildProcess.run(.{ .argv = &nasmargv, .allocator = gpa.allocator() });
defer gpa.allocator().free(nasmproc.stdout);
defer gpa.allocator().free(nasmproc.stderr);
const ldargv = [_][]const u8{ "ld", "-o", "out/out", "out/out.o" };
const ldproc = try std.ChildProcess.run(.{ .argv = &ldargv, .allocator = gpa.allocator() });
defer gpa.allocator().free(ldproc.stdout);
defer gpa.allocator().free(ldproc.stderr);
}
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