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Refactor const, let, assignment

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allow multiple const decls and multiple assignments
This commit is contained in:
Dmitry Vasilev
2023-10-30 12:51:15 +08:00
parent 487ec28b1c
commit 89c4728181
6 changed files with 361 additions and 238 deletions
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21
src/find_definitions.js
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@@ -26,11 +26,13 @@ const scope_from_node = n => {
)
} else if(n.type == 'export'){
return scope_from_node(n.binding)
} else if(n.type == 'const' || n.type == 'let'){
} else if(n.type == 'let' || n.type == 'const') {
return Object.fromEntries(
collect_destructuring_identifiers(n.name_node).map(node => [
node.value, node
])
n.children
.flatMap(collect_destructuring_identifiers)
.map(node => [
node.value, node
])
)
} else if(n.type == 'function_decl') {
// Return null because of hoisting. We take function decls into account
@@ -55,6 +57,11 @@ const add_trivial_definition = node => {
]}
} else if(['array_destructuring', 'object_destructuring'].includes(node.type)) {
return {...node, children: node.children.map(add_trivial_definition)}
} else if (node.type == 'decl_pair') {
return {
...node,
children: node.children.with(0, add_trivial_definition(node.children[0]))
}
} else {
console.error(node)
throw new Error('not implemented')
@@ -150,10 +157,8 @@ export const find_definitions = (ast, globals, scope = {}, closure_scope = {}, m
is_default: i == 0 && ast.default_import != null,
}
}))
} else if(ast.type == 'const') {
children = [add_trivial_definition(ast.name_node), ...ast.children.slice(1)]
} else if(ast.type == 'let') {
children = ast.name_node.map(add_trivial_definition)
} else if(ast.type == 'const' || ast.type == 'let') {
children = ast.children.map(add_trivial_definition)
} else {
children = ast.children
}