harn_vm/
stdlib.rs

1//! Standard library builtins for the Harn VM.
2
3mod agent_sessions;
4mod agents;
5mod concurrency;
6mod crypto;
7mod datetime;
8mod fs;
9pub mod host;
10mod io;
11mod iter;
12pub(crate) mod json;
13mod logging;
14mod math;
15mod path;
16pub mod process;
17mod regex;
18mod sets;
19mod shapes;
20mod skills;
21mod strings;
22pub mod template;
23mod testing;
24pub(crate) mod tools;
25pub mod tracing;
26mod types;
27
28use crate::http::register_http_builtins;
29use crate::llm::register_llm_builtins;
30use crate::mcp::register_mcp_builtins;
31use crate::mcp_server::register_mcp_server_builtins;
32use crate::vm::Vm;
33
34pub(crate) use crate::schema::{json_to_vm_value, schema_result_value};
35pub(crate) fn set_thread_source_dir(dir: &std::path::Path) {
36    process::set_thread_source_dir(dir);
37}
38
39/// Register core builtins: pure/deterministic, no I/O.
40pub fn register_core_stdlib(vm: &mut Vm) {
41    types::register_type_builtins(vm);
42    math::register_math_builtins(vm);
43    strings::register_string_builtins(vm);
44    json::register_json_builtins(vm);
45    datetime::register_datetime_builtins(vm);
46    regex::register_regex_builtins(vm);
47    crypto::register_crypto_builtins(vm);
48    path::register_path_helper_builtins(vm);
49    sets::register_set_builtins(vm);
50    iter::register_iter_builtins(vm);
51    shapes::register_shape_builtins(vm);
52    testing::register_testing_builtins(vm);
53}
54
55/// Register I/O builtins (requires OS access).
56pub fn register_io_stdlib(vm: &mut Vm) {
57    io::register_io_builtins(vm);
58    host::register_host_builtins(vm);
59    fs::register_fs_builtins(vm);
60    process::register_process_builtins(vm);
61    process::register_path_builtins(vm);
62    tracing::register_tracing_builtins(vm);
63}
64
65/// Register agent builtins (requires network access and async runtime).
66pub fn register_agent_stdlib(vm: &mut Vm) {
67    concurrency::register_concurrency_builtins(vm);
68    tools::register_tool_builtins(vm);
69    skills::register_skill_builtins(vm);
70    agents::register_agent_builtins(vm);
71    agent_sessions::register_agent_session_builtins(vm);
72    register_http_builtins(vm);
73    register_llm_builtins(vm);
74    register_mcp_builtins(vm);
75    register_mcp_server_builtins(vm);
76}
77
78/// Register all standard builtins on a VM (core + io + agent).
79pub fn register_vm_stdlib(vm: &mut Vm) {
80    register_core_stdlib(vm);
81    register_io_stdlib(vm);
82    register_agent_stdlib(vm);
83}
84
85/// Return the canonical list of all stdlib builtin names. Used by
86/// harn-lint and harn-lsp to avoid hardcoded duplicate lists.
87pub fn stdlib_builtin_names() -> Vec<String> {
88    let mut vm = Vm::new();
89    register_vm_stdlib(&mut vm);
90    let tmp = std::path::PathBuf::from("/tmp");
91    crate::store::register_store_builtins(&mut vm, &tmp);
92    crate::checkpoint::register_checkpoint_builtins(&mut vm, &tmp, "default");
93    crate::metadata::register_metadata_builtins(&mut vm, &tmp);
94    crate::metadata::register_scan_builtins(&mut vm);
95    let mut names = vm.builtin_names();
96    // Special opcodes/keywords, not registered builtins, but linter
97    // should recognize them as valid function calls.
98    for extra in [
99        "spawn",
100        "await",
101        "cancel",
102        "cancel_graceful",
103        "is_cancelled",
104    ] {
105        names.push(extra.to_string());
106    }
107    names
108}
109
110/// Reset thread-local stdlib state. Call between test runs.
111pub fn reset_stdlib_state() {
112    logging::reset_logging_state();
113    process::reset_process_state();
114    fs::reset_fs_state();
115    json::reset_json_state();
116    host::reset_host_state();
117    agents::records::reset_eval_metrics();
118    tools::clear_current_tool_registry();
119    template::reset_prompt_registry();
120}
harn_vm/stdlib.rs

harn_vm/
stdlib.rs
