1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
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");
const blue = "\x1b[34m";
const red = "\x1b[31m";
const normal = "\x1b[0m";
pub fn main() !u8 {
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 Action = enum {
run,
compile,
};
const action = (if (args.next()) |act| std.meta.stringToEnum(Action, act) else null) orelse {
std.debug.print("Invalid action. Supply `run` or `compile`.", .{});
return 1;
};
const dir = switch (action) {
.run => blk: {
const dir = try std.fmt.allocPrint(allocator, "/tmp/huginn-build-{}", .{std.crypto.random.int(u32)});
try std.fs.makeDirAbsolute(dir);
break :blk dir;
},
.compile => ".",
};
const in_path = args.next();
const in_file = if (in_path) |path|
try std.fs.cwd().openFile(path, .{})
else
std.io.getStdIn();
const out_name = if (in_path) |p| blk: {
if (!std.mem.endsWith(u8, p, ".hgn")) {
std.debug.print("Invalid input file extension. Must be `.hgn`.", .{});
return 1;
}
break :blk p[0 .. p.len - 4];
} else "a.out";
const out_path = try std.fmt.allocPrint(allocator, "{s}/{s}", .{ dir, out_name });
const out_file = try std.fs.cwd().createFile(out_path, .{ .mode = 0o777 });
const source = try in_file.readToEndAlloc(
allocator,
640 * 1024, // ought to be enough for anyone
);
var lexer: Lexer = .{ .source = source };
const ast = parse.file(allocator, &lexer) catch |err| {
std.debug.print(red ++ "parsing error: {}\n" ++ normal, .{err});
return 1;
};
std.debug.print(blue ++ "parse tree:" ++ normal ++ "\n{}\n", .{parse.fmt(ast, source, 0)});
if (lexer.peek().type != .eof) {
std.debug.print(red ++ "Unexpected token {}, expected end of file\n" ++ normal, .{lexer.next()});
return 1;
}
const module = compile.compile(allocator, source, ast) catch |err| {
std.debug.print(red ++ "compilation error: {}\n" ++ normal, .{err});
return 1;
};
std.debug.print(blue ++ "bytecode instructions: " ++ normal ++ "\n{}", .{module});
const elf = codegen.create_elf(allocator, module) catch |err| {
std.debug.print(red ++ "code generation error: {}\n" ++ normal, .{err});
return 1;
};
try out_file.writer().writeAll(elf);
if (action == .run) {
std.debug.print(blue ++ "running program:" ++ normal ++ "\n", .{});
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(red ++ "{}\n" ++ normal ++ "{any}\n", .{ err, @errorReturnTrace() });
return 1;
} else {
return 0;
}
}
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 {
const k_fmt, const v_fmt = comptime blk: {
var fmt_it = std.mem.splitScalar(u8, fmt, ',');
const k_fmt = fmt_it.next() orelse "";
const v_fmt = fmt_it.next() orelse "";
break :blk .{ k_fmt, v_fmt };
};
_ = options;
try writer.writeAll("{");
var it = hash_map.iterator();
var first = true;
while (it.next()) |kv| {
try writer.print(
"{s} {" ++ k_fmt ++ "}: {" ++ v_fmt ++ "}",
.{
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 };
}
|
