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feat(semantic): bind function expression name (#1049)

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closes #1018

We'll eventually recover the mangling tests, which should cover this
change.
This commit is contained in:
Boshen 2023-10-24 17:25:12 +08:00 committed by GitHub
parent 64988f484b
commit a442fad3b7
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 15 additions and 21 deletions
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10
crates/oxc_semantic/src/binder.rs
View file

@ -138,6 +138,16 @@ impl<'a> Binder for Function<'a> {
excludes,
);
ident.symbol_id.set(Some(symbol_id));
} else if self.r#type == FunctionType::FunctionExpression {
// https://tc39.es/ecma262/#sec-runtime-semantics-instantiateordinaryfunctionexpression
// 5. Perform ! funcEnv.CreateImmutableBinding(name, false).
let symbol_id = builder.declare_symbol(
ident.span,
&ident.name,
SymbolFlags::empty(),
SymbolFlags::empty(),
);
ident.symbol_id.set(Some(symbol_id));
}
}

26
tasks/coverage/src/test262.rs
View file

@ -203,7 +203,7 @@ impl Case for Test262Case {
}
fn are_all_identifiers_resolved(semantic: &oxc_semantic::Semantic<'_>) -> bool {
use oxc_ast::{ast, AstKind};
use oxc_ast::AstKind;
use oxc_semantic::AstNode;
let ast_nodes = semantic.nodes();
@ -212,27 +212,11 @@ fn are_all_identifiers_resolved(semantic: &oxc_semantic::Semantic<'_>) -> bool {
AstKind::BindingIdentifier(id) => {
let mut parents = ast_nodes.iter_parents(node.id()).map(AstNode::kind);
parents.next(); // Exclude BindingIdentifier itself
match parents.next() {
Some(AstKind::Function(func))
if func.r#type == ast::FunctionType::FunctionExpression =>
{
// FIXME: Currently, the name of `FunctionExpression` won't be assigned a `SymbolId`
return false;
}
_ => {}
if let (Some(AstKind::Function(_)), Some(AstKind::IfStatement(_))) =
(parents.next(), parents.next())
{
return false;
}
let mut parents = ast_nodes.iter_parents(node.id()).map(AstNode::kind);
parents.next(); // Exclude BindingIdentifier itself
match (parents.next(), parents.next()) {
// FIXME: case like `if (xx) ; else function test() {}`
(Some(AstKind::Function(func)), Some(AstKind::IfStatement(_)))
if func.r#type == ast::FunctionType::FunctionDeclaration =>
{
return false;
}
_ => {}
}
id.symbol_id.get().is_none()
}
AstKind::IdentifierReference(ref_id) => ref_id.reference_id.get().is_none(),