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denoland-rusty-v8/src/script.rs

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use std::marker::PhantomData;
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use std::mem::MaybeUninit;
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use std::ptr::null;
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use crate::Boolean;
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use crate::Context;
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use crate::Integer;
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use crate::Local;
use crate::Script;
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use crate::String;
use crate::ToLocal;
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use crate::Value;
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/// The origin, within a file, of a script.
#[repr(C)]
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pub struct ScriptOrigin<'sc>([usize; 7], PhantomData<&'sc ()>);
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extern "C" {
fn v8__Script__Compile(
context: *mut Context,
source: *mut String,
origin: *const ScriptOrigin,
) -> *mut Script;
fn v8__Script__Run(this: &mut Script, context: *mut Context) -> *mut Value;
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fn v8__ScriptOrigin__CONSTRUCT(
buf: &mut MaybeUninit<ScriptOrigin>,
resource_name: *mut Value,
resource_line_offset: *mut Integer,
resource_column_offset: *mut Integer,
resource_is_shared_cross_origin: *mut Boolean,
script_id: *mut Integer,
source_map_url: *mut Value,
resource_is_opaque: *mut Boolean,
is_wasm: *mut Boolean,
is_module: *mut Boolean,
);
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}
impl Script {
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/// A shorthand for ScriptCompiler::Compile().
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pub fn compile<'sc>(
scope: &mut impl ToLocal<'sc>,
mut context: Local<Context>,
mut source: Local<String>,
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origin: Option<&ScriptOrigin>,
) -> Option<Local<'sc, Script>> {
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// TODO: use the type system to enforce that a Context has been entered.
// TODO: `context` and `source` probably shouldn't be mut.
let ptr = unsafe {
v8__Script__Compile(
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&mut *context,
&mut *source,
origin.map(|r| r as *const _).unwrap_or(null()),
)
};
unsafe { scope.to_local(ptr) }
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}
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/// Runs the script returning the resulting value. It will be run in the
/// context in which it was created (ScriptCompiler::CompileBound or
/// UnboundScript::BindToCurrentContext()).
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pub fn run<'sc>(
&mut self,
scope: &mut impl ToLocal<'sc>,
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mut context: Local<Context>,
) -> Option<Local<'sc, Value>> {
unsafe { scope.to_local(v8__Script__Run(self, &mut *context)) }
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}
}
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/// The origin, within a file, of a script.
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impl<'sc> ScriptOrigin<'sc> {
#[allow(clippy::too_many_arguments)]
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pub fn new(
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mut resource_name: Local<'sc, Value>,
mut resource_line_offset: Local<'sc, Integer>,
mut resource_column_offset: Local<'sc, Integer>,
mut resource_is_shared_cross_origin: Local<'sc, Boolean>,
mut script_id: Local<'sc, Integer>,
mut source_map_url: Local<'sc, Value>,
mut resource_is_opaque: Local<'sc, Boolean>,
mut is_wasm: Local<'sc, Boolean>,
mut is_module: Local<'sc, Boolean>,
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) -> Self {
unsafe {
let mut buf = std::mem::MaybeUninit::<ScriptOrigin>::uninit();
v8__ScriptOrigin__CONSTRUCT(
&mut buf,
&mut *resource_name,
&mut *resource_line_offset,
&mut *resource_column_offset,
&mut *resource_is_shared_cross_origin,
&mut *script_id,
&mut *source_map_url,
&mut *resource_is_opaque,
&mut *is_wasm,
&mut *is_module,
);
buf.assume_init()
}
}
}