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[expr parser] Communicate expression operator table bake errors through callback.

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This commit is contained in:
Miguel Lechon
2021-10-24 17:11:28 +02:00
parent 8ec2e23a1d
commit 47613b5563
3 changed files with 56 additions and 39 deletions
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tests/expression_tests.c
+40 -21
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@@ -223,6 +223,23 @@ static MD_String8 parenthesize(MD_Arena *arena, OperatorDescription *descs, MD_E
return result;
}
static MD_MessageList global_message_list = {0};
static MD_MessageKind global_max_message_kind = MD_MessageKind_Null;
static void reset_global_messages()
{
global_message_list = (MD_MessageList){0};
global_max_message_kind = MD_MessageKind_Null;
}
static void bake_operator_error_handler(MD_MessageKind kind, MD_String8 s)
{
// NOTE: Append error to global error list
MD_Message *message = MD_PushArrayZero(arena, MD_Message, 1);
message->kind = kind;
message->string = s;
MD_MessageListPush(&global_message_list, message);
global_max_message_kind = global_max_message_kind >= kind ? global_max_message_kind: kind;
}
int main(void)
{
OperatorDescription operator_array[Op_COUNT] = {0};
@@ -246,75 +263,77 @@ operator_array[Op_##name].op = (MD_ExprOpr){ .op_id = Op_##name, .kind = MD_Expr
MD_Node *cast_node = MD_MakeNode(arena, MD_NodeKind_Main, cast, cast, 0);
MD_Node *minus_node = MD_MakeNode(arena, MD_NodeKind_Main, minus, minus, 0);
MD_Node *plus_node_bis = MD_MakeNode(arena, MD_NodeKind_Main, plus, plus, 0);
MD_ExprSetBakeOperatorErrorHandler(bake_operator_error_handler);
// NOTE: Wrong operator kind
reset_global_messages();
operator_list = (MD_ExprOprList){0};
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Null, 1, MD_S8Lit("+"),
Op_Addition, plus_node);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == plus_node);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
// NOTE: () not as unary postfix
operator_list = (MD_ExprOprList){0};
reset_global_messages();
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Prefix, 1, MD_S8Lit("()"),
23 /* arbitrary MD_ExprOprKind */, cast_node);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == cast_node);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
// NOTE: Repeat operator
operator_list = (MD_ExprOprList){0};
reset_global_messages();
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Binary, 1, MD_S8Lit("+"),
Op_Addition, plus_node);
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Binary, 1, MD_S8Lit("+"),
Op_Addition, plus_node_bis);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == plus_node_bis);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
operator_list = (MD_ExprOprList){0};
reset_global_messages();
// NOTE: Binary-postfix operator conflict
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Binary, 1, MD_S8Lit("+"),
Op_Addition, plus_node);
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Postfix, 1, MD_S8Lit("+"),
Op_Addition, plus_node_bis);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning
&& op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == plus_node_bis);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning
&& global_message_list.node_count == 1);
operator_list = (MD_ExprOprList){0};
reset_global_messages();
// NOTE: Same precedence difference associativity conflict
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Binary, 1, MD_S8Lit("+"),
Op_Addition, plus_node);
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_BinaryRightAssociative, 1, MD_S8Lit("-"),
Op_Addition, minus_node);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == minus_node);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
// NOTE: Multitoken operator
reset_global_messages();
operator_list = (MD_ExprOprList){0};
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Prefix, 1, MD_S8Lit("+ +"),
23 /* arbitrary MD_ExprOprKind */, plus_node);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == plus_node);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
// NOTE: Wrong token kind operator
reset_global_messages();
operator_list = (MD_ExprOprList){0};
MD_ExprOprPush(arena, &operator_list, MD_ExprOprKind_Prefix, 1, MD_S8Lit("123"),
23 /* arbitrary MD_ExprOprKind */, plus_node);
op_table = MD_ExprBakeOperatorTableFromList(arena, &operator_list);
MD_Assert(op_table.errors.max_message_kind == MD_MessageKind_Warning &&
op_table.errors.node_count == 1 &&
op_table.errors.first->user_ptr == plus_node);
MD_Assert(global_max_message_kind == MD_MessageKind_Warning &&
global_message_list.node_count == 1);
}
MD_ExprOprList operator_list = {0};