solomon_gremlin/process/traversal/step/
has.rs

1use crate::structure::GValue;
2use crate::structure::{Either2, TextP, T};
3use crate::structure::{IntoPredicate, Predicate};
4
5pub enum HasStepKey {
6	Str(String),
7	T(T),
8}
9
10impl Into<HasStepKey> for T {
11	fn into(self) -> HasStepKey {
12		HasStepKey::T(self)
13	}
14}
15
16impl Into<HasStepKey> for String {
17	fn into(self) -> HasStepKey {
18		HasStepKey::Str(self)
19	}
20}
21
22impl Into<HasStepKey> for &str {
23	fn into(self) -> HasStepKey {
24		HasStepKey::Str(String::from(self))
25	}
26}
27
28pub struct HasStep {
29	label: Option<String>,
30	key: HasStepKey,
31	predicate: Option<Either2<Predicate, TextP>>,
32}
33
34impl From<HasStep> for Vec<GValue> {
35	fn from(step: HasStep) -> Self {
36		let mut params: Vec<GValue> = vec![];
37
38		if let Some(s) = step.label {
39			params.push(Into::into(s));
40		}
41
42		match step.key {
43			HasStepKey::Str(key) => params.push(Into::into(key)),
44			HasStepKey::T(key) => params.push(Into::into(key)),
45		};
46
47		if let Some(p) = step.predicate {
48			params.push(Into::into(p));
49		}
50
51		params
52	}
53}
54
55impl<A, B> From<(A, B)> for HasStep
56where
57	A: Into<HasStepKey>,
58	B: IntoPredicate,
59{
60	fn from(param: (A, B)) -> Self {
61		HasStep {
62			label: None,
63			key: param.0.into(),
64			predicate: Some(param.1.into_predicate()),
65		}
66	}
67}
68
69impl<A, B, C> From<(A, B, C)> for HasStep
70where
71	A: Into<String>,
72	B: Into<HasStepKey>,
73	C: IntoPredicate,
74{
75	fn from(param: (A, B, C)) -> Self {
76		HasStep {
77			label: Some(param.0.into()),
78			key: param.1.into(),
79			predicate: Some(param.2.into_predicate()),
80		}
81	}
82}
83
84impl From<String> for HasStep {
85	fn from(param: String) -> Self {
86		HasStep {
87			label: None,
88			key: HasStepKey::Str(param),
89			predicate: None,
90		}
91	}
92}
93
94impl From<&str> for HasStep {
95	fn from(param: &str) -> Self {
96		HasStep {
97			label: None,
98			key: HasStepKey::Str(String::from(param)),
99			predicate: None,
100		}
101	}
102}
solomon_gremlin/process/traversal/step/has.rs

solomon_gremlin/process/traversal/step/
has.rs
