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

harn_vm/
stdlib.rs
