vig/src/runner.zig

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2019-06-05 00:27:05 +00:00
const std = @import("std");
const scanners = @import("scanner.zig");
const main = @import("main.zig");
const Allocator = std.mem.Allocator;
const Result = main.Result;
pub const Runner = struct {
allocator: *Allocator,
stdout: main.StdOut,
pub fn init(allocator: *Allocator, stdout: var) Runner {
return Runner{ .allocator = allocator, .stdout = stdout };
}
pub fn execute(self: *Runner, code: []u8) !void {
var scanner = scanners.Scanner.init(self.allocator, code);
while (true) {
var tok_opt = scanner.nextToken() catch |err| {
try self.stdout.print(
"error at '{}': {}\n",
scanner.currentLexeme(),
err,
);
return Result.CompileError;
};
if (tok_opt) |tok| {
if (tok.ttype == .EOF) break;
try self.stdout.print("{x}\n", tok);
}
}
return Result.Ok;
}
};