git.delta.rocks / jrsonnet / refs/commits / 789bed17a43f

1use jrsonnet_evaluator::{EvaluationState, ObjValue, Val};2use libc::{c_char, c_double, c_int, c_uint};3use std::{4	ffi::{CStr, CString},5	path::PathBuf,6	rc::Rc,7};89#[no_mangle]10pub extern "C" fn jsonnet_version() -> &'static [u8; 8] {11	b"v0.16.0\0"12}1314#[no_mangle]15pub extern "C" fn jsonnet_make() -> Box<EvaluationState> {16	Box::new(EvaluationState::default())17}1819// TODO20#[no_mangle]21pub extern "C" fn jsonnet_max_stack(_vm: &EvaluationState, _v: c_uint) {}2223// jrsonnet currently have no GC, so these functions is no-op24#[no_mangle]25pub extern "C" fn jsonnet_gc_min_objects(_vm: &EvaluationState, _v: c_uint) {}26#[no_mangle]27pub extern "C" fn jsonnet_gc_growth_trigger(_vm: &EvaluationState, _v: c_double) {}2829// TODO30#[no_mangle]31pub extern "C" fn jsonnet_string_output(_vm: &EvaluationState, _v: c_int) {}3233#[no_mangle]34pub extern "C" fn jsonnet_json_extract_string(_vm: &EvaluationState, v: &Val) -> *mut c_char {35	match v.unwrap_if_lazy().unwrap() {36		Val::Str(s) => CString::new(&*s as &str).unwrap().into_raw(),37		_ => std::ptr::null_mut(),38	}39}40#[no_mangle]41pub extern "C" fn jsonnet_json_extract_number(42	_vm: &EvaluationState,43	v: &Val,44	out: &mut c_double,45) -> c_int {46	match v.unwrap_if_lazy().unwrap() {47		Val::Num(n) => {48			*out = n;49			150		}51		_ => 0,52	}53}54#[no_mangle]55pub extern "C" fn jsonnet_json_extract_bool(_vm: &EvaluationState, v: &Val) -> c_int {56	match v.unwrap_if_lazy().unwrap() {57		Val::Bool(false) => 0,58		Val::Bool(true) => 1,59		_ => 2,60	}61}62#[no_mangle]63pub extern "C" fn jsonnet_json_extract_null(_vm: &EvaluationState, v: &Val) -> c_int {64	match v.unwrap_if_lazy().unwrap() {65		Val::Null => 1,66		_ => 0,67	}68}6970/// # Safety71///72/// This function is safe, if received v is a pointer to normal C string73#[no_mangle]74pub unsafe extern "C" fn jsonnet_json_make_string(75	_vm: &EvaluationState,76	v: *const c_char,77) -> Box<Val> {78	let cstr = CStr::from_ptr(v);79	let str = cstr.to_str().unwrap();80	Box::new(Val::Str(str.into()))81}8283#[no_mangle]84pub extern "C" fn jsonnet_json_make_number(_vm: &EvaluationState, v: c_double) -> Box<Val> {85	Box::new(Val::Num(v))86}8788#[no_mangle]89pub extern "C" fn jsonnet_json_make_bool(_vm: &EvaluationState, v: c_int) -> Box<Val> {90	assert!(v == 0 || v == 1);91	Box::new(Val::Bool(v == 1))92}9394#[no_mangle]95pub extern "C" fn jsonnet_json_make_null(_vm: &EvaluationState) -> Box<Val> {96	Box::new(Val::Null)97}9899#[no_mangle]100pub extern "C" fn jsonnet_json_make_array(_vm: &EvaluationState) -> Box<Val> {101	Box::new(Val::Arr(Rc::new(Vec::new())))102}103104#[no_mangle]105pub extern "C" fn jsonnet_json_array_append(_vm: &EvaluationState, arr: &mut Val, val: &Val) {106	match arr {107		Val::Arr(old) => {108			let mut new = Vec::new();109			new.extend(old.iter().cloned());110			new.push(val.clone());111			*arr = Val::Arr(Rc::new(new));112		}113		_ => panic!("should receive array"),114	}115}116117#[no_mangle]118pub extern "C" fn jsonnet_json_make_object(_vm: &EvaluationState) -> Box<Val> {119	Box::new(Val::Obj(ObjValue::new_empty()))120}121122#[no_mangle]123pub extern "C" fn jsonnet_json_object_append(124	_vm: &EvaluationState,125	_obj: &mut Val,126	_name: *const c_char,127	_val: &Val,128) {129	todo!()130}131132#[no_mangle]133pub extern "C" fn jsonnet_realloc(_vm: &EvaluationState, _buf: *const u8, _sz: usize) -> *const u8 {134	todo!()135}136137#[no_mangle]138#[allow(clippy::boxed_local)]139pub extern "C" fn jsonnet_json_destroy(_vm: &EvaluationState, _v: Box<Val>) {}140141#[no_mangle]142pub extern "C" fn jsonnet_import_callback() {143	todo!()144}145#[no_mangle]146pub extern "C" fn jsonnet_native_callback() {147	todo!()148}149#[no_mangle]150pub extern "C" fn jsonnet_ext_var() {151	todo!()152}153#[no_mangle]154pub extern "C" fn jsonnet_ext_code() {155	todo!()156}157#[no_mangle]158pub extern "C" fn jsonnet_tla_var() {159	todo!()160}161#[no_mangle]162pub extern "C" fn jsonnet_tla_code() {163	todo!()164}165#[no_mangle]166pub extern "C" fn jsonnet_max_trace() {167	todo!()168}169#[no_mangle]170pub extern "C" fn jsonnet_jpath_add() {171	todo!()172}173174/// # Safety175///176/// This function is safe, if received v is a pointer to normal C string177#[no_mangle]178pub unsafe extern "C" fn jsonnet_evaluate_file(179	vm: &EvaluationState,180	filename: *const c_char,181	error: &mut c_int,182) -> *const c_char {183	vm.run_in_state(|| {184		use std::fmt::Write;185		let filename = CStr::from_ptr(filename);186		match vm.evaluate_file_to_json(&PathBuf::from(filename.to_str().unwrap())) {187			Ok(v) => {188				*error = 0;189				CString::new(&*v as &str).unwrap().into_raw()190			}191			Err(e) => {192				*error = 1;193				let mut out = String::new();194				writeln!(out, "{:?}", e.0).unwrap();195				for i in (e.1).0.iter() {196					writeln!(out, "{:?}", i).unwrap();197				}198				CString::new(&out as &str).unwrap().into_raw()199			}200		}201	})202}203#[no_mangle]204pub extern "C" fn jsonnet_evaluate_snippet() {205	todo!()206}207#[no_mangle]208pub extern "C" fn jsonnet_evaluate_file_multi() {209	todo!()210}211#[no_mangle]212pub extern "C" fn jsonnet_evaluate_snippet_multi() {213	todo!()214}215#[no_mangle]216pub extern "C" fn jsonnet_evaluate_file_stream() {217	todo!()218}219#[no_mangle]220pub extern "C" fn jsonnet_evaluate_snippet_stream() {221	todo!()222}223224#[no_mangle]225#[allow(clippy::boxed_local)]226pub extern "C" fn jsonnet_destroy(_vm: Box<EvaluationState>) {}