89 lines
4.6 KiB
Rust
89 lines
4.6 KiB
Rust
use std::sync::Arc;
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use oxide_kernel::bind_methods;
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use oxide_kernel::kernel::{KernelCore, KernelSession};
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use oxide_types::object::{JsObject, PropAttributes};
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use oxide_types::value::JsValue;
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/// 把 Math 单例对象及其方法（abs/floor/max/random 等）绑定到 global。
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pub fn bind_math(core: &Arc<KernelCore>, session: &KernelSession, global: &mut JsObject) {
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let math_ptr = session.builtin_world().math_object.as_ptr() as *mut JsObject;
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let math = unsafe { &mut *math_ptr };
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let bw = session.builtin_world();
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let sf = core.perm_interner().as_ref();
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let sh = core.shape_forge().as_ref();
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bind_methods!(
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bw,
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math,
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sf,
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sh,
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("abs", oxide_builtins::math::math_abs::<crate::vm::Vm>, 1),
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("acos", oxide_builtins::math::math_acos::<crate::vm::Vm>, 1),
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("asin", oxide_builtins::math::math_asin::<crate::vm::Vm>, 1),
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("atan", oxide_builtins::math::math_atan::<crate::vm::Vm>, 1),
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("atan2", oxide_builtins::math::math_atan2::<crate::vm::Vm>, 2),
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("cbrt", oxide_builtins::math::math_cbrt::<crate::vm::Vm>, 1),
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("ceil", oxide_builtins::math::math_ceil::<crate::vm::Vm>, 1),
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("cos", oxide_builtins::math::math_cos::<crate::vm::Vm>, 1),
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("cosh", oxide_builtins::math::math_cosh::<crate::vm::Vm>, 1),
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("exp", oxide_builtins::math::math_exp::<crate::vm::Vm>, 1),
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("floor", oxide_builtins::math::math_floor::<crate::vm::Vm>, 1),
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("hypot", oxide_builtins::math::math_hypot::<crate::vm::Vm>, 2),
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("imul", oxide_builtins::math::math_imul::<crate::vm::Vm>, 2),
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("log", oxide_builtins::math::math_log::<crate::vm::Vm>, 1),
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("log10", oxide_builtins::math::math_log10::<crate::vm::Vm>, 1),
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("log2", oxide_builtins::math::math_log2::<crate::vm::Vm>, 1),
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("max", oxide_builtins::math::math_max::<crate::vm::Vm>, 2),
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("min", oxide_builtins::math::math_min::<crate::vm::Vm>, 2),
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("pow", oxide_builtins::math::math_pow::<crate::vm::Vm>, 2),
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("random", oxide_builtins::math::math_random::<crate::vm::Vm>, 0),
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("round", oxide_builtins::math::math_round::<crate::vm::Vm>, 1),
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("sign", oxide_builtins::math::math_sign::<crate::vm::Vm>, 1),
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("sin", oxide_builtins::math::math_sin::<crate::vm::Vm>, 1),
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("sinh", oxide_builtins::math::math_sinh::<crate::vm::Vm>, 1),
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("sqrt", oxide_builtins::math::math_sqrt::<crate::vm::Vm>, 1),
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("tan", oxide_builtins::math::math_tan::<crate::vm::Vm>, 1),
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("tanh", oxide_builtins::math::math_tanh::<crate::vm::Vm>, 1),
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("trunc", oxide_builtins::math::math_trunc::<crate::vm::Vm>, 1),
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("acosh", oxide_builtins::math::math_acosh::<crate::vm::Vm>, 1),
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("asinh", oxide_builtins::math::math_asinh::<crate::vm::Vm>, 1),
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("atanh", oxide_builtins::math::math_atanh::<crate::vm::Vm>, 1),
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("clz32", oxide_builtins::math::math_clz32::<crate::vm::Vm>, 1),
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("expm1", oxide_builtins::math::math_expm1::<crate::vm::Vm>, 1),
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("fround", oxide_builtins::math::math_fround::<crate::vm::Vm>, 1),
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("log1p", oxide_builtins::math::math_log1p::<crate::vm::Vm>, 1),
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);
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for (name, val) in [
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("PI", std::f64::consts::PI),
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("E", std::f64::consts::E),
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("LN10", std::f64::consts::LN_10),
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("LN2", std::f64::consts::LN_2),
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("LOG10E", std::f64::consts::LOG10_E),
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("LOG2E", std::f64::consts::LOG2_E),
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("SQRT1_2", std::f64::consts::FRAC_1_SQRT_2),
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("SQRT2", std::f64::consts::SQRT_2),
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] {
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let si = core.perm_interner().as_ref().intern(name).0;
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let sh_c = core.shape_forge().as_ref().make_shape(math.shape_id(), si);
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math.set_shape_id(sh_c);
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math.ensure_hash_props().push(JsValue::float(val));
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// Math 常量描述符：{ writable:false, enumerable:false, configurable:false }，
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// 保证 Object.keys(Math) 为空（与 Number 常量同款收口）。
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let pos = math.prop_vec_len().saturating_sub(1) as u32;
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math.set_data_meta(pos, PropAttributes::new(false, false, false));
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}
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let si_m = core.perm_interner().intern("Math").0;
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let m_shape = core.shape_forge().make_shape(global.shape_id(), si_m);
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let m_val = JsValue::from_js_object(session.builtin_world().math_object.as_ptr() as *mut JsObject);
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global.set_shape_id(m_shape);
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global.ensure_hash_props().push(m_val);
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// 全局 Math 槽位非枚举（规范全局命名空间对象属性均 enumerable:false）。
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let pos = global.prop_vec_len().saturating_sub(1) as u32;
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global.set_data_meta(pos, PropAttributes::new(true, false, true));
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global.bump_generation();
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}
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