fix incorrect return node if cannot transform

microsoft · sandersn · Feb 5, 2020 · May 1, 2018 · May 1, 2018 · May 2, 2018
commit c2580ed14844e984ec3e4d19ba2f16cfeee02f3e
diff --git a/src/compiler/transformers/taggedTemplate.ts b/src/compiler/transformers/taggedTemplate.ts
@@ -24,7 +24,7 @@ namespace ts {
         const rawStrings: Expression[] = [];
         const template = node.template;
 
-        if (level === ProcessLevel.LiftRestriction && !hasInvalidEscape(template)) return tag;
+        if (level === ProcessLevel.LiftRestriction && !hasInvalidEscape(template)) return node;
 
         if (isNoSubstitutionTemplateLiteral(template)) {
             cookedStrings.push(createTemplateCooked(template));

diff --git a/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts b/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts
@@ -2,6 +2,8 @@ function tag (str: any, ...args: any[]): string {
   return str
 }
 
+const a = tag`123`
+const b = tag`123 ${100}`
 const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate

diff --git a/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences_es2015.ts b/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences_es2015.ts
@@ -4,6 +4,8 @@ function tag (str: any, ...args: any[]): string {
   return str
 }
 
+const a = tag`123`
+const b = tag`123 ${100}`
 const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate

diff --git a/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences_esnext.ts b/tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences_esnext.ts
@@ -4,6 +4,8 @@ function tag (str: any, ...args: any[]): string {
   return str
 }
 
+const a = tag`123`
+const b = tag`123 ${100}`
 const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
 const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate