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Disallow duplicated AST nodes (#11807)

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This commit is contained in:
Huáng Jùnliàng
2020-07-14 09:32:16 -04:00
committed by GitHub
parent ffb42488ba
commit 5dd64ecc4a
24 changed files with 85 additions and 62 deletions
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26
packages/babel-plugin-transform-modules-systemjs/src/index.js
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@@ -233,8 +233,8 @@ export default declare((api, options) => {
}
},
exit(path, state) {
const undefinedIdent = path.scope.buildUndefinedNode();
const exportIdent = path.scope.generateUid("export");
const scope = path.scope;
const exportIdent = scope.generateUid("export");
const contextIdent = state.contextIdent;
const exportMap = Object.create(null);
@@ -285,7 +285,7 @@ export default declare((api, options) => {
beforeBody.push(path.node);
removedPaths.push(path);
} else if (path.isClassDeclaration()) {
variableIds.push(path.node.id);
variableIds.push(t.cloneNode(path.node.id));
path.replaceWith(
t.expressionStatement(
t.assignmentExpression(
@@ -299,7 +299,7 @@ export default declare((api, options) => {
const source = path.node.source.value;
pushModule(source, "imports", path.node.specifiers);
for (const name of Object.keys(path.getBindingIdentifiers())) {
path.scope.removeBinding(name);
scope.removeBinding(name);
variableIds.push(t.identifier(name));
}
path.remove();
@@ -312,8 +312,8 @@ export default declare((api, options) => {
if (declar.isClassDeclaration()) {
if (id) {
exportNames.push("default");
exportValues.push(undefinedIdent);
variableIds.push(id);
exportValues.push(scope.buildUndefinedNode());
variableIds.push(t.cloneNode(id));
addExportName(id.name, "default");
path.replaceWith(
t.expressionStatement(
@@ -360,8 +360,8 @@ export default declare((api, options) => {
} else if (path.isClass()) {
const name = declar.node.id.name;
exportNames.push(name);
exportValues.push(undefinedIdent);
variableIds.push(declar.node.id);
exportValues.push(scope.buildUndefinedNode());
variableIds.push(t.cloneNode(declar.node.id));
path.replaceWith(
t.expressionStatement(
t.assignmentExpression(
@@ -389,9 +389,7 @@ export default declare((api, options) => {
const nodes = [];
for (const specifier of specifiers) {
const binding = path.scope.getBinding(
specifier.local.name,
);
const binding = scope.getBinding(specifier.local.name);
// hoisted function export
if (
binding &&
@@ -426,7 +424,7 @@ export default declare((api, options) => {
modules.forEach(function (specifiers) {
let setterBody = [];
const target = path.scope.generateUid(specifiers.key);
const target = scope.generateUid(specifiers.key);
for (let specifier of specifiers.imports) {
if (t.isImportNamespaceSpecifier(specifier)) {
@@ -510,7 +508,7 @@ export default declare((api, options) => {
variableIds.push(id);
if (!hasInit) {
exportNames.push(name);
exportValues.push(undefinedIdent);
exportValues.push(scope.buildUndefinedNode());
}
},
null,
@@ -540,7 +538,7 @@ export default declare((api, options) => {
path.traverse(reassignmentVisitor, {
exports: exportMap,
buildCall: buildExportCall,
scope: path.scope,
scope,
});
for (const path of removedPaths) {