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use anyhow::Result;
use serde::{Deserialize, Serialize};
use swc_core::quote;
use turbo_tasks::{NonLocalValue, Vc, debug::ValueDebugFormat, trace::TraceRawVcs};
use turbopack_core::chunk::ChunkingContext;
use super::AstPath;
use crate::{
code_gen::{CodeGen, CodeGeneration},
create_visitor,
};
#[derive(
Copy, Clone, Hash, PartialEq, Eq, Debug, Serialize, Deserialize, TraceRawVcs, NonLocalValue,
)]
pub enum ConstantConditionValue {
Truthy,
Falsy,
Nullish,
}
#[derive(PartialEq, Eq, Serialize, Deserialize, TraceRawVcs, ValueDebugFormat, NonLocalValue)]
pub struct ConstantConditionCodeGen {
value: ConstantConditionValue,
path: AstPath,
}
impl ConstantConditionCodeGen {
pub fn new(value: ConstantConditionValue, path: AstPath) -> Self {
ConstantConditionCodeGen { value, path }
}
pub async fn code_generation(
&self,
_chunking_context: Vc<Box<dyn ChunkingContext>>,
) -> Result<CodeGeneration> {
let value = self.value;
let visitors = [create_visitor!(
exact,
self.path,
visit_mut_expr,
|expr: &mut Expr| {
*expr = match value {
ConstantConditionValue::Truthy => {
quote!("(\"TURBOPACK compile-time truthy\", 1)" as Expr)
}
ConstantConditionValue::Falsy => {
quote!("(\"TURBOPACK compile-time falsy\", 0)" as Expr)
}
ConstantConditionValue::Nullish => {
quote!("(\"TURBOPACK compile-time nullish\", null)" as Expr)
}
};
}
)]
.into();
Ok(CodeGeneration::visitors(visitors))
}
}
impl From<ConstantConditionCodeGen> for CodeGen {
fn from(val: ConstantConditionCodeGen) -> Self {
CodeGen::ConstantConditionCodeGen(val)
}
}
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