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const std = @import("std");
const codegen = @import("./codegen.zig");
const target = @import("builtin").target;
pub const parse = @import("./parse.zig");
pub const Lexer = @import("./Lexer.zig");
pub const compile = @import("./compile.zig");
pub fn main() !void {
var arena: std.heap.ArenaAllocator = .init(std.heap.smp_allocator);
defer arena.deinit();
const allocator = arena.allocator();
var args = std.process.args();
_ = args.next();
const out_path = args.next();
const out_file = if (out_path) |path|
try std.fs.cwd().createFile(path, .{ .mode = 0o777 })
else
std.io.getStdOut();
const run = if (args.next()) |arg| std.mem.eql(u8, arg, "run") else false;
// var br = std.io.bufferedReader(std.io.getStdIn().reader());
// const stdin = br.reader();
//
// var line: std.ArrayList(u8) = .init(alloc);
// defer line.deinit();
// while (true) {
// try stdin.streamUntilDelimiter(line.writer(), '\n', null);
//
// const lexer = Lexer{.source = line};
//
// try stdout.print("{s}\n", .{line.items});
// }
const source =
\\{
\\ let x = 10
\\ let y = 0
\\ print(x > y)
\\ while y < 3 {
\\ x = x + x
\\ y = y + 1
\\ }
\\ if x {
\\ # let x = read_int(0)
\\ # print(18446744073709551615)
\\ x = x + x
\\ } else {
\\ x = 69
\\ }
\\ print(x)
\\}
;
var lexer: Lexer = .{ .source = source };
std.debug.print("Tokens:\n", .{});
while (true) {
const token = lexer.next();
std.debug.print(" {}\n", .{token});
if (token.type == .eof) break;
}
lexer = .{ .source = source };
const ast = try parse.block(allocator, &lexer);
std.debug.print("Parse tree:\n{}\n", .{parse.fmt(ast, source, 0)});
if (lexer.peek().type != .eof) {
std.debug.print("Unexpected token {}, expected end of file\n", .{lexer.next()});
}
const procedure = try compile.compile(allocator, source, ast);
std.debug.print("Bytecode instructions:\n{}", .{procedure});
const elf = try codegen.create_elf(allocator, procedure);
try out_file.writer().writeAll(elf);
std.debug.print("Run output:\n", .{});
if (run) {
out_file.close();
const err = std.process.execv(
allocator,
if (target.cpu.arch == .riscv64 and target.os.tag == .linux)
&.{out_path}
else
&.{ "qemu-riscv64", out_path.? },
);
std.debug.print("{}\n{any}\n", .{err, @errorReturnTrace()});
}
}
fn HashMapFormatter(HashMap: type) type {
return std.fmt.Formatter(struct {
fn formatHashMap(
hash_map: HashMap,
comptime fmt: []const u8,
options: std.fmt.FormatOptions,
writer: anytype,
) !void {
_ = fmt;
_ = options;
try writer.writeAll("{");
var it = hash_map.iterator();
var first = true;
while (it.next()) |kv| {
try writer.print(
"{s} {" ++ (if (@TypeOf(kv.key_ptr.*) == []const u8) "s" else "any") ++ "}: {any}",
.{ if (first) "" else ",", kv.key_ptr.*, kv.value_ptr.* },
);
first = false;
}
try writer.writeAll(if (first) "}" else " }");
}
}.formatHashMap);
}
pub fn fmtHashMap(hash_map: anytype) HashMapFormatter(@TypeOf(hash_map)) {
return .{ .data = hash_map };
}
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