Function getLiteralText

test/fixtures/snapshot/typescript.js:14899–14951

(node, sourceFile, flags)

        GetLiteralTextFlags[GetLiteralTextFlags["AllowNumericSeparator"] = 8] = "AllowNumericSeparator";
    })(GetLiteralTextFlags = ts.GetLiteralTextFlags || (ts.GetLiteralTextFlags = {}));
    function getLiteralText(node, sourceFile, flags) {
        var _a;
        // If we don't need to downlevel and we can reach the original source text using
        // the node's parent reference, then simply get the text as it was originally written.
        if (sourceFile && canUseOriginalText(node, flags)) {
            return getSourceTextOfNodeFromSourceFile(sourceFile, node);
        }
        // If we can't reach the original source text, use the canonical form if it's a number,
        // or a (possibly escaped) quoted form of the original text if it's string-like.
        switch (node.kind) {
            case 10 /* SyntaxKind.StringLiteral */: {
                var escapeText = flags & 2 /* GetLiteralTextFlags.JsxAttributeEscape */ ? escapeJsxAttributeString :
                    flags & 1 /* GetLiteralTextFlags.NeverAsciiEscape */ || (getEmitFlags(node) & 16777216 /* EmitFlags.NoAsciiEscaping */) ? escapeString :
                        escapeNonAsciiString;
                if (node.singleQuote) {
                    return "'" + escapeText(node.text, 39 /* CharacterCodes.singleQuote */) + "'";
                }
                else {
                    return '"' + escapeText(node.text, 34 /* CharacterCodes.doubleQuote */) + '"';
                }
            }
            case 14 /* SyntaxKind.NoSubstitutionTemplateLiteral */:
            case 15 /* SyntaxKind.TemplateHead */:
            case 16 /* SyntaxKind.TemplateMiddle */:
            case 17 /* SyntaxKind.TemplateTail */: {
                // If a NoSubstitutionTemplateLiteral appears to have a substitution in it, the original text
                // had to include a backslash: `not \${a} substitution`.
                var escapeText = flags & 1 /* GetLiteralTextFlags.NeverAsciiEscape */ || (getEmitFlags(node) & 16777216 /* EmitFlags.NoAsciiEscaping */) ? escapeString :
                    escapeNonAsciiString;
                var rawText = (_a = node.rawText) !== null && _a !== void 0 ? _a : escapeTemplateSubstitution(escapeText(node.text, 96 /* CharacterCodes.backtick */));
                switch (node.kind) {
                    case 14 /* SyntaxKind.NoSubstitutionTemplateLiteral */:
                        return "`" + rawText + "`";
                    case 15 /* SyntaxKind.TemplateHead */:
                        return "`" + rawText + "${";
                    case 16 /* SyntaxKind.TemplateMiddle */:
                        return "}" + rawText + "${";
                    case 17 /* SyntaxKind.TemplateTail */:
                        return "}" + rawText + "`";
                }
                break;
            }
            case 8 /* SyntaxKind.NumericLiteral */:
            case 9 /* SyntaxKind.BigIntLiteral */:
                return node.text;
            case 13 /* SyntaxKind.RegularExpressionLiteral */:
                if (flags & 4 /* GetLiteralTextFlags.TerminateUnterminatedLiterals */ && node.isUnterminated) {
                    return node.text + (node.text.charCodeAt(node.text.length - 1) === 92 /* CharacterCodes.backslash */ ? " /" : "/");
                }
                return node.text;
        }
        return ts.Debug.fail("Literal kind '".concat(node.kind, "' not accounted for."));
    }
    ts.getLiteralText = getLiteralText;
    function canUseOriginalText(node, flags) {
        if (nodeIsSynthesized(node) || !node.parent || (flags & 4 /* GetLiteralTextFlags.TerminateUnterminatedLiterals */ && node.isUnterminated)) {