harn_vm/
stdlib.rs

1//! Standard library builtins for the Harn VM.
2
3mod agent_sessions;
4pub mod agent_state;
5mod agents;
6mod agents_daemon;
7mod concurrency;
8mod connectors;
9mod crypto;
10mod datetime;
11mod fs;
12pub(crate) mod hitl;
13mod hitl_read;
14pub mod host;
15mod io;
16mod iter;
17pub(crate) mod json;
18mod logging;
19mod math;
20mod path;
21pub mod process;
22mod project;
23mod project_catalog;
24mod project_enrich;
25mod regex;
26pub mod secret_scan;
27mod sets;
28mod shapes;
29mod skills;
30mod strings;
31pub mod template;
32mod testing;
33pub(crate) mod tools;
34pub mod tracing;
35mod transcript_compact;
36mod triggers_stdlib;
37mod types;
38
39use crate::http::register_http_builtins;
40use crate::llm::register_llm_builtins;
41use crate::mcp::register_mcp_builtins;
42use crate::mcp_server::register_mcp_server_builtins;
43use crate::vm::Vm;
44
45pub(crate) use crate::schema::{json_to_vm_value, schema_result_value};
46pub(crate) fn set_thread_source_dir(dir: &std::path::Path) {
47    process::set_thread_source_dir(dir);
48}
49
50/// Register core builtins: pure/deterministic, no I/O.
51pub fn register_core_stdlib(vm: &mut Vm) {
52    types::register_type_builtins(vm);
53    math::register_math_builtins(vm);
54    strings::register_string_builtins(vm);
55    json::register_json_builtins(vm);
56    datetime::register_datetime_builtins(vm);
57    regex::register_regex_builtins(vm);
58    crypto::register_crypto_builtins(vm);
59    path::register_path_helper_builtins(vm);
60    sets::register_set_builtins(vm);
61    iter::register_iter_builtins(vm);
62    shapes::register_shape_builtins(vm);
63    testing::register_testing_builtins(vm);
64}
65
66/// Register I/O builtins (requires OS access).
67pub fn register_io_stdlib(vm: &mut Vm) {
68    io::register_io_builtins(vm);
69    host::register_host_builtins(vm);
70    fs::register_fs_builtins(vm);
71    agent_state::register_agent_state_builtins(vm);
72    process::register_process_builtins(vm);
73    process::register_path_builtins(vm);
74    project::register_project_builtins(vm);
75    tracing::register_tracing_builtins(vm);
76}
77
78/// Register agent builtins (requires network access and async runtime).
79pub fn register_agent_stdlib(vm: &mut Vm) {
80    concurrency::register_concurrency_builtins(vm);
81    connectors::register_connector_builtins(vm);
82    secret_scan::register_secret_scan_builtins(vm);
83    tools::register_tool_builtins(vm);
84    skills::register_skill_builtins(vm);
85    agents_daemon::register_daemon_builtins(vm);
86    triggers_stdlib::register_trigger_builtins(vm);
87    hitl::register_hitl_builtins(vm);
88    hitl_read::register_hitl_read_builtins(vm);
89    agents::register_agent_builtins(vm);
90    agent_sessions::register_agent_session_builtins(vm);
91    transcript_compact::register_transcript_compaction_builtins(vm);
92    register_http_builtins(vm);
93    register_llm_builtins(vm);
94    register_mcp_builtins(vm);
95    register_mcp_server_builtins(vm);
96}
97
98/// Register all standard builtins on a VM (core + io + agent).
99pub fn register_vm_stdlib(vm: &mut Vm) {
100    register_core_stdlib(vm);
101    register_io_stdlib(vm);
102    register_agent_stdlib(vm);
103}
104
105/// Return the canonical list of all stdlib builtin names. Used by
106/// harn-lint and harn-lsp to avoid hardcoded duplicate lists.
107pub fn stdlib_builtin_names() -> Vec<String> {
108    let mut vm = Vm::new();
109    register_vm_stdlib(&mut vm);
110    let tmp = std::path::PathBuf::from("/tmp");
111    crate::store::register_store_builtins(&mut vm, &tmp);
112    crate::checkpoint::register_checkpoint_builtins(&mut vm, &tmp, "default");
113    crate::metadata::register_metadata_builtins(&mut vm, &tmp);
114    crate::metadata::register_scan_builtins(&mut vm);
115    let mut names = vm.builtin_names();
116    // Special opcodes/keywords, not registered builtins, but linter
117    // should recognize them as valid function calls.
118    for extra in [
119        "spawn",
120        "await",
121        "cancel",
122        "cancel_graceful",
123        "is_cancelled",
124    ] {
125        names.push(extra.to_string());
126    }
127    names
128}
129
130/// Reset thread-local stdlib state. Call between test runs.
131pub fn reset_stdlib_state() {
132    logging::reset_logging_state();
133    process::reset_process_state();
134    fs::reset_fs_state();
135    json::reset_json_state();
136    host::reset_host_state();
137    hitl::reset_hitl_state();
138    agents::records::reset_eval_metrics();
139    tools::clear_current_tool_registry();
140    crate::skills::clear_current_skill_registry();
141    template::reset_prompt_registry();
142}
harn_vm/stdlib.rs

harn_vm/
stdlib.rs
