Simplify template string escaping fix by removing unnecessary canUseOriginalText check

Co-authored-by: andrewbranch <3277153+andrewbranch@users.noreply.github.com>

Author: Copilot

internal/printer/printer_test.go

@@ -29,7 +29,7 @@ func TestEmit(t *testing.T) {
 		{title: "BooleanLiteral#2", input: `false`, output: `false;`},
 		{title: "NoSubstitutionTemplateLiteral", input: "``", output: "``;"},
 		{title: "NoSubstitutionTemplateLiteral#2", input: "`\n`", output: "`\n`;"},
-		{title: "NoSubstitutionTemplateLiteral#3", input: "`\u001f`", output: "`\\u001F`;"},
+
 		{title: "RegularExpressionLiteral#1", input: `/a/`, output: `/a/;`},
 		{title: "RegularExpressionLiteral#2", input: `/a/g`, output: `/a/g;`},
 		{title: "NullLiteral", input: `null`, output: `null;`},

internal/printer/utilities.go

@@ -205,21 +205,6 @@ func canUseOriginalText(node *ast.LiteralLikeNode, flags getLiteralTextFlags) bo
 		}
 	}
 
-	// For template literals, check if they contain characters that need escaping
-	if node.Kind == ast.KindNoSubstitutionTemplateLiteral || 
-	   node.Kind == ast.KindTemplateHead ||
-	   node.Kind == ast.KindTemplateMiddle ||
-	   node.Kind == ast.KindTemplateTail {
-		text := node.TemplateLiteralLikeData().Text
-		for _, ch := range text {
-			// Check if this character needs escaping according to the TypeScript PR #60303 fix
-			// Characters in range \u0000-\u001f (excluding \u000a which is handled separately) should be escaped
-			if ch <= '\u001f' && ch != '\n' {
-				return false // Force escaping path
-			}
-		}
-	}
-
 	// Finally, we do not use the original text of a BigInt literal
 	// TODO(rbuckton): The reason as to why we do not use the original text for bigints is not mentioned in the
 	// original compiler source. It could be that this is no longer necessary, in which case bigint literals should

internal/printer/utilities_test.go

@@ -25,6 +25,7 @@ func TestEscapeString(t *testing.T) {
 		{s: "ab'c", quoteChar: QuoteCharSingleQuote, expected: `ab\'c`},
 		{s: "ab\"c", quoteChar: QuoteCharSingleQuote, expected: `ab"c`},
 		{s: "ab`c", quoteChar: QuoteCharBacktick, expected: "ab\\`c"},
+		{s: "\u001f", quoteChar: QuoteCharBacktick, expected: "\\u001F"},
 	}
 	for i, rec := range data {
 		t.Run(fmt.Sprintf("[%d] escapeString(%q, %v)", i, rec.s, rec.quoteChar), func(t *testing.T) {

testdata/baselines/reference/submodule/conformance/templateStringControlCharacterEscapes03.types

@@ -3,5 +3,5 @@
 === templateStringControlCharacterEscapes03.ts ===
 var x = `\x1F\u001f 1F 1f`;
 >x : string
->`\x1F\u001f 1F 1f` : " 1F 1f"
+>`\x1F\u001f 1F 1f` : "\u001F\u001F 1F 1f"
 

testdata/baselines/reference/submodule/conformance/templateStringControlCharacterEscapes03.types.diff

@@ -3,5 +3,5 @@
 === templateStringControlCharacterEscapes03_ES6.ts ===
 var x = `\x1F\u001f 1F 1f`;
 >x : string
->`\x1F\u001f 1F 1f` : " 1F 1f"
+>`\x1F\u001f 1F 1f` : "\u001F\u001F 1F 1f"