diff options
| author | Nagi5Yeq <wu@x-nagi.com> | 2020-05-30 16:14:12 +0800 |
|---|---|---|
| committer | Nagi5Yeq <wu@x-nagi.com> | 2020-05-30 16:14:12 +0800 |
| commit | fb1fed0f275d1673cf6fb6c3887bc8919e1849d7 (patch) | |
| tree | f9fe14b95c53760b5bea25b5931eb52b147d05d6 /Parser.y | |
| parent | 30726a1872c92d40424d496fc52043ca452d935f (diff) | |
full support of pointer access
Diffstat (limited to 'Parser.y')
| -rw-r--r-- | Parser.y | 22 |
1 files changed, 13 insertions, 9 deletions
@@ -62,10 +62,10 @@ YY_DECL; %type <int> INTEGER_LITERAL %type <float> REAL_LITERAL %type <std::vector<char>> STRING_LITERAL -%type <std::shared_ptr<pcc::ExprNode>> literal lvalue +%type <std::shared_ptr<pcc::ExprNode>> literal lvalue rvalue standalone %type <std::list<std::shared_ptr<pcc::ExprNode>>> arguments %type <std::shared_ptr<pcc::FunctionCallNode>> function_call -%type <std::shared_ptr<pcc::ExprNode>> expression l1_expression l2_expression l3_expression standalone_expression +%type <std::shared_ptr<pcc::ExprNode>> expression l1_expression l2_expression l3_expression %type <pcc::BinaryOperator> l1_operator l2_operator l3_operator %type <pcc::UnaryOperator> l4_operator @@ -229,20 +229,24 @@ l2_expression l3_expression : l4_operator l3_expression {$$=std::make_shared<pcc::UnaryExprNode>(ctx,$1,$2);} | AT lvalue {$$=$2;} - | standalone_expression {$$=$1;} + | standalone {$$=$1;} + +standalone + : rvalue {$$=$1;} + | lvalue {$$=std::make_shared<pcc::L2RCastingNode>(ctx, $1);} ; -standalone_expression - : lvalue {$$=std::make_shared<pcc::L2RCastingNode>(ctx, $1);} - | function_call {$$=$1;} +rvalue + : function_call {$$=$1;} | literal {$$=$1;} | LPARENTHESIS expression RPARENTHESIS {$$=$2;} ; lvalue - : IDENTIFIER {$$=std::make_shared<pcc::IdentifierNode>(ctx, $1);} - | lvalue LBRACKET expression RBRACKET {$$=std::make_shared<pcc::ArrayAccessNode>(ctx, $1, $3);} - | standalone_expression DOT IDENTIFIER + : IDENTIFIER {$$=std::make_shared<pcc::IdentifierNode>(ctx, $1);} + | lvalue LBRACKET expression RBRACKET {$$=std::make_shared<pcc::ArrayAccessNode>(ctx, $1, $3);} + | rvalue LBRACKET expression RBRACKET {$$=std::make_shared<pcc::PointerAccessNode>(ctx, $1, $3);} + | standalone DOT IDENTIFIER ; function_call |