fix a bug when parsing @Custom NatSpec tags

frangio · frangio · commit 9bd50c32841d · 2021-04-26T15:42:07.000-03:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.5.13
+
+- Fix a bug when parsing @custom NatSpec tags.
+
 ## 0.5.12
 
 - Add support for @custom: NatSpec tags.
diff --git a/src/source.ts b/src/source.ts
@@ -472,7 +472,7 @@ function parseNatSpec(doc: string, context: SourceContractItem | SourceContract)
       const parentContract = context.contract.file.contractsInScope[content.trim()];
       inheritFrom = parentContract.functions.find(f => f.name === context.name);
     }
-    if (tag.startsWith('custom:')) {
+    if (tag?.startsWith('custom:')) {
       const key = tag.replace(/^custom:/, '');
       res.custom ??= {};
       res.custom[key] ??= '';

Original file line number	Diff line number	Diff line change
`@@ -472,7 +472,7 @@ function parseNatSpec(doc: string, context: SourceContractItem \| SourceContract)`
`472`	`472`	`const parentContract = context.contract.file.contractsInScope[content.trim()];`
`473`	`473`	`inheritFrom = parentContract.functions.find(f => f.name === context.name);`
`474`	`474`	`}`
`475`		`- if (tag.startsWith('custom:')) {`
	`475`	`+ if (tag?.startsWith('custom:')) {`
`476`	`476`	`const key = tag.replace(/^custom:/, '');`
`477`	`477`	`res.custom ??= {};`
`478`	`478`	`res.custom[key] ??= '';`