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const std = @import("std");
const lex = @import("js_lexer.zig");
const logger = @import("logger.zig");
const alloc = @import("alloc.zig");
const options = @import("options.zig");
const js_parser = @import("js_parser.zig");
const json_parser = @import("json_parser.zig");
const js_printer = @import("js_printer.zig");
const js_ast = @import("js_ast.zig");
const linker = @import("linker.zig");
usingnamespace @import("ast/base.zig");
usingnamespace @import("defines.zig");
const panicky = @import("panic_handler.zig");
const fs = @import("fs.zig");
const MainPanicHandler = panicky.NewPanicHandler(panicky.default_panic);
pub fn panic(msg: []const u8, error_return_trace: ?*std.builtin.StackTrace) noreturn {
if (MainPanicHandler.Singleton) |singleton| {
MainPanicHandler.handle_panic(msg, error_return_trace);
} else {
panicky.default_panic(msg, error_return_trace);
}
}
// const Alloc = zee.ZeeAllocDefaults.wasm_allocator
pub fn main() anyerror!void {
var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
var allocator = &arena.allocator;
try alloc.setup(allocator);
var log = logger.Log.init(alloc.dynamic);
var panicker = MainPanicHandler.init(&log);
MainPanicHandler.Singleton = &panicker;
const args = try std.process.argsAlloc(alloc.dynamic);
const stdout = std.io.getStdOut();
const stderr = std.io.getStdErr();
if (args.len < 1) {
const len = stderr.write("Pass a file");
return;
}
const absolutePath = args[args.len - 1];
const pathname = fs.PathName.init(absolutePath);
const entryPointName = try alloc.dynamic.alloc(u8, pathname.base.len + pathname.ext.len);
std.mem.copy(u8, entryPointName, pathname.base);
std.mem.copy(u8, entryPointName[pathname.base.len..entryPointName.len], pathname.ext);
const code = try std.io.getStdIn().readToEndAlloc(alloc.dynamic, std.math.maxInt(usize));
const opts = try options.TransformOptions.initUncached(alloc.dynamic, entryPointName, code);
var source = logger.Source.initFile(opts.entry_point, alloc.dynamic);
var ast: js_ast.Ast = undefined;
var raw_defines = RawDefines.init(alloc.static);
try raw_defines.put("process.env.NODE_ENV", "\"development\"");
var user_defines = try DefineData.from_input(raw_defines, &log, alloc.static);
var define = try Define.init(
alloc.static,
user_defines,
);
switch (opts.loader) {
.json => {
var expr = try json_parser.ParseJSON(&source, &log, alloc.dynamic);
var stmt = js_ast.Stmt.alloc(alloc.dynamic, js_ast.S.ExportDefault{
.value = js_ast.StmtOrExpr{ .expr = expr },
.default_name = js_ast.LocRef{ .loc = logger.Loc{}, .ref = Ref{} },
}, logger.Loc{ .start = 0 });
var part = js_ast.Part{
.stmts = &([_]js_ast.Stmt{stmt}),
};
ast = js_ast.Ast.initTest(&([_]js_ast.Part{part}));
},
.jsx, .tsx, .ts, .js => {
var parser = try js_parser.Parser.init(opts, &log, &source, define, alloc.dynamic);
var res = try parser.parse();
ast = res.ast;
},
else => {
Global.panic("Unsupported loader: {s}", .{opts.loader});
},
}
var _linker = linker.Linker{};
var symbols: [][]js_ast.Symbol = &([_][]js_ast.Symbol{ast.symbols});
const printed = try js_printer.printAst(
alloc.dynamic,
ast,
js_ast.Symbol.Map.initList(symbols),
&source,
false,
js_printer.Options{ .to_module_ref = ast.module_ref orelse js_ast.Ref{ .inner_index = 0 } },
&_linker,
);
// if (std.builtin.mode == std.builtin.Mode.Debug) {
// var fixed_buffer = [_]u8{0} ** 512000;
// var buf_stream = std.io.fixedBufferStream(&fixed_buffer);
// try ast.toJSON(alloc.dynamic, stderr.writer());
// }
_ = try stdout.write(printed.js);
}
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