Fix #9402: Do not report unused identifier errors for catch variables

microsoft · Jun 28, 2016 · 17a428c · 17a428c
1 parent 67f0ffe
commit 17a428c
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Showing 4 changed files with 16 additions and 11 deletions.
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -15563,7 +15563,6 @@ namespace ts {
                 }
 
                 checkBlock(catchClause.block);
-                checkUnusedIdentifiers(catchClause);
             }
 
             if (node.finallyBlock) {

diff --git a/tests/baselines/reference/unusedParameterInCatchClause.errors.txt b/tests/baselines/reference/unusedParameterInCatchClause.errors.txt
diff --git a/tests/baselines/reference/unusedParameterInCatchClause.symbols b/tests/baselines/reference/unusedParameterInCatchClause.symbols
@@ -0,0 +1,8 @@
+=== tests/cases/compiler/unusedParameterInCatchClause.ts ===
+
+function f1() {
+>f1 : Symbol(f1, Decl(unusedParameterInCatchClause.ts, 0, 0))
+
+    try {} catch(ex){}
+>ex : Symbol(ex, Decl(unusedParameterInCatchClause.ts, 2, 17))
+}
diff --git a/tests/baselines/reference/unusedParameterInCatchClause.types b/tests/baselines/reference/unusedParameterInCatchClause.types
@@ -0,0 +1,8 @@
+=== tests/cases/compiler/unusedParameterInCatchClause.ts ===
+
+function f1() {
+>f1 : () => void
+
+    try {} catch(ex){}
+>ex : any
+}