55 lines
1.2 KiB
Zig
55 lines
1.2 KiB
Zig
const std = @import("std");
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const vm = @import("vm.zig");
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const Allocator = std.mem.Allocator;
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pub const ObjType = enum {
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String,
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};
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pub const ObjValue = struct {
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String: []u8,
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};
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pub const Object = struct {
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otype: ObjType,
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value: ObjValue,
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next: ?*Object = null,
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};
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pub fn allocateObject(
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vmach: *vm.VM,
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otype: ObjType,
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value: ObjValue,
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) !*Object {
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var obj = try vmach.allocator.create(Object);
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obj.otype = otype;
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obj.value = value;
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obj.next = vmach.objs;
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vmach.objs = obj;
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return obj;
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}
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fn createString(vmach: *vm.VM, data: []u8) !*Object {
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return allocateObject(vmach, ObjType.String, ObjValue{ .String = data });
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}
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pub fn copyString(vmach: *vm.VM, data: []const u8) !*Object {
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var str = try vmach.allocator.alloc(u8, data.len);
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std.mem.copy(u8, str, data);
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return try createString(vmach, str);
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}
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/// Assumes it can take ownership of the given data.
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pub fn takeString(vmach: *vm.VM, data: []u8) !*Object {
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return try createString(vmach, data);
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}
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pub fn printObject(stdout: var, obj: Object) !void {
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switch (obj.otype) {
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.String => try stdout.print("{}", obj.value.String),
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else => unreachable,
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}
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}
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