================
@@ -370,6 +374,74 @@ std::optional<int64_t> DILParser::ParseIntegerConstant() {
return std::nullopt;
}
+// Parse a numeric_literal.
+//
+// numeric_literal:
+// ? Token::integer_constant ?
+// ? Token::floating_constant ?
+//
+ASTNodeUP DILParser::ParseNumericLiteral() {
+ ASTNodeUP numeric_constant;
+ if (CurToken().Is(Token::integer_constant))
+ numeric_constant = ParseIntegerLiteral();
+ else
+ numeric_constant = ParseFloatingPointLiteral();
+ if (numeric_constant->GetKind() == NodeKind::eErrorNode) {
+ BailOut(llvm::formatv("Failed to parse token as numeric-constant: {0}",
+ CurToken()),
+ CurToken().GetLocation(), CurToken().GetSpelling().length());
+ return std::make_unique<ErrorNode>();
+ }
+ m_dil_lexer.Advance();
+ return numeric_constant;
+}
+
+ASTNodeUP DILParser::ParseIntegerLiteral() {
+ Token token = CurToken();
+ auto spelling = token.GetSpelling();
+ llvm::StringRef spelling_ref = spelling;
+
+ auto radix = llvm::getAutoSenseRadix(spelling_ref);
+ bool is_unsigned = false, is_long = false, is_longlong = false;
+ if (spelling_ref.consume_back_insensitive("ll"))
+ is_longlong = true;
+ if (spelling_ref.consume_back_insensitive("l"))
+ is_long = true;
+ if (spelling_ref.consume_back_insensitive("u"))
+ is_unsigned = true;
----------------
labath wrote:
c++ allows both `llu` and `ull`, so this will need to be smarter if you want to
accept both.
https://github.com/llvm/llvm-project/pull/152308
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