diff options
Diffstat (limited to 'src/parse/expr.cpp')
| -rw-r--r-- | src/parse/expr.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/parse/expr.cpp b/src/parse/expr.cpp index 6e18f0eb..6cc94d74 100644 --- a/src/parse/expr.cpp +++ b/src/parse/expr.cpp @@ -254,6 +254,7 @@ ExprNodeP Parse_ExprBlockLine(TokenStream& lex, bool *add_silence) case TOK_BRACE_OPEN: { PUTBACK(tok, lex); ret = Parse_ExprBlockNode(lex); } + // If the block is followed by `.` or `?`, it's actually an expression! if( lex.lookahead(0) == TOK_DOT || lex.lookahead(0) == TOK_QMARK ) { lex.putback( Token(Token::TagTakeIP(), InterpolatedFragment(InterpolatedFragment::EXPR, ret.release())) ); return Parse_ExprBlockLine_Stmt(lex, *add_silence); @@ -470,6 +471,17 @@ ExprNodeP Parse_Expr_Match(TokenStream& lex) return NEWNODE( AST::ExprNode_Match, ::std::move(switch_val), ::std::move(arms) ); } +/// "do catch" block +ExprNodeP Parse_Expr_Try(TokenStream& lex) +{ + TRACE_FUNCTION; + //Token tok; + + auto inner = Parse_ExprBlockNode(lex); + //TODO(lex.point_span(), "do catch"); + return NEWNODE(AST::ExprNode_Try, ::std::move(inner)); +} + /// Parses the 'stmt' fragment specifier /// - Flow control /// - Expressions @@ -1126,6 +1138,23 @@ ExprNodeP Parse_ExprVal(TokenStream& lex) return Parse_WhileStmt(lex, ""); case TOK_RWORD_FOR: return Parse_ForStmt(lex, ""); + case TOK_RWORD_DO: + if( TARGETVER_1_29 ) + { + // `do catch` - stabilised later as `try` + if( GET_TOK(tok, lex) == TOK_IDENT && tok.str() == "catch" ) + { + return Parse_Expr_Try(lex); + } + else + { + throw ParseError::Unexpected(lex, tok); + } + } + else + { + throw ParseError::Unexpected(lex, tok); + } case TOK_RWORD_MATCH: return Parse_Expr_Match(lex); case TOK_RWORD_IF: |