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regression(38485): allow using rawText property in processing a tagged template

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Alexander T
2020-05-12 12:30:46 +03:00
parent f4872eb493
commit ee3f2ce362
3 changed files with 36 additions and 8 deletions
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src/compiler/transformers/taggedTemplate.ts
+11 -8
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@@ -71,18 +71,21 @@ namespace ts {
*
* @param node The ES6 template literal.
*/
function getRawLiteral(node: LiteralLikeNode, currentSourceFile: SourceFile) {
function getRawLiteral(node: TemplateLiteralLikeNode, currentSourceFile: SourceFile) {
// Find original source text, since we need to emit the raw strings of the tagged template.
// The raw strings contain the (escaped) strings of what the user wrote.
// Examples: `\n` is converted to "\\n", a template string with a newline to "\n".
let text = getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
let text = node.rawText;
if (text === undefined) {
text = getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
// text contains the original source, it will also contain quotes ("`"), dolar signs and braces ("${" and "}"),
// thus we need to remove those characters.
// First template piece starts with "`", others with "}"
// Last template piece ends with "`", others with "${"
const isLast = node.kind === SyntaxKind.NoSubstitutionTemplateLiteral || node.kind === SyntaxKind.TemplateTail;
text = text.substring(1, text.length - (isLast ? 1 : 2));
// text contains the original source, it will also contain quotes ("`"), dolar signs and braces ("${" and "}"),
// thus we need to remove those characters.
// First template piece starts with "`", others with "}"
// Last template piece ends with "`", others with "${"
const isLast = node.kind === SyntaxKind.NoSubstitutionTemplateLiteral || node.kind === SyntaxKind.TemplateTail;
text = text.substring(1, text.length - (isLast ? 1 : 2));
}
// Newline normalization:
// ES6 Spec 11.8.6.1 - Static Semantics of TV's and TRV's