diff options
Diffstat (limited to 'lib/entry/libimagentryfilter/src/builtin/header/field_istype.rs')
-rw-r--r-- | lib/entry/libimagentryfilter/src/builtin/header/field_istype.rs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/entry/libimagentryfilter/src/builtin/header/field_istype.rs b/lib/entry/libimagentryfilter/src/builtin/header/field_istype.rs new file mode 100644 index 00000000..889c8321 --- /dev/null +++ b/lib/entry/libimagentryfilter/src/builtin/header/field_istype.rs @@ -0,0 +1,89 @@ +// +// imag - the personal information management suite for the commandline +// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; version +// 2.1 of the License. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +// + +use libimagstore::store::Entry; + +use builtin::header::field_path::FieldPath; +use builtin::header::field_predicate::FieldPredicate; +use builtin::header::field_predicate::Predicate; +use filters::filter::Filter; + +use toml::Value; + +pub enum Type { + Array, + Boolean, + Float, + Integer, + None, + String, + Table, +} + +impl Type { + + fn matches(&self, v: &Value) -> bool { + match (self, v) { + (&Type::String, &Value::String(_)) | + (&Type::Integer, &Value::Integer(_)) | + (&Type::Float, &Value::Float(_)) | + (&Type::Boolean, &Value::Boolean(_)) | + (&Type::Array, &Value::Array(_)) | + (&Type::Table, &Value::Table(_)) => true, + _ => false, + } + } + +} + +struct IsTypePred { + ty: Type +} + +impl Predicate for IsTypePred { + + fn evaluate(&self, v: Value) -> bool { + self.ty.matches(&v) + } + +} + +pub struct FieldIsType { + filter: FieldPredicate<IsTypePred>, +} + +impl FieldIsType { + + pub fn new(path: FieldPath, expected_type: Type) -> FieldIsType { + FieldIsType { + filter: FieldPredicate::new(path, Box::new(IsTypePred { ty: expected_type })), + } + } + +} + +impl Filter<Entry> for FieldIsType { + + fn filter(&self, e: &Entry) -> bool { + self.filter.filter(e) + } + +} + + |