moduforge-transform 0.2.4

不可变数据结构与事务系统基础
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use std::sync::Arc;

use attr_step::AttrStep;
use draft::Draft;
use mark_step::AddMarkStep;
use node_step::{AddNodeStep, MoveNodeStep, RemoveNodeStep, ReplaceNodeStep};
use patch::Patch;
use serde::{Deserialize, Serialize};
use step::{Step, StepResult};
use transform::TransformError;

use moduforge_model::schema::Schema;
pub mod attr_step;
pub mod draft;
pub mod mark_step;
pub mod node_step;
pub mod patch;
pub mod step;
pub mod transform;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ConcreteStep {
    UpdateAttrs(AttrStep),
    AddNodeStep(AddNodeStep),
    AddMarkStep(AddMarkStep),
    RemoveNodeStep(RemoveNodeStep),
    PatchStep(PatchStep),
    MoveNodeStep(MoveNodeStep),
    ReplaceNodeStep(ReplaceNodeStep),
    BatchStep(BatchStep),
}
impl Step for ConcreteStep {
    fn apply(
        &self,
        dart: &mut Draft,
        schema: std::sync::Arc<moduforge_model::schema::Schema>,
    ) -> Result<step::StepResult, transform::TransformError> {
        match self {
            ConcreteStep::UpdateAttrs(attr_step) => {
                attr_step.apply(dart, schema)
            },
            ConcreteStep::AddNodeStep(add_node_step) => {
                add_node_step.apply(dart, schema)
            },
            ConcreteStep::AddMarkStep(add_mark_step) => {
                add_mark_step.apply(dart, schema)
            },
            ConcreteStep::RemoveNodeStep(remove_node_step) => {
                remove_node_step.apply(dart, schema)
            },
            ConcreteStep::PatchStep(patch_step) => {
                patch_step.apply(dart, schema)
            },
            ConcreteStep::MoveNodeStep(move_node_step) => {
                move_node_step.apply(dart, schema)
            },
            ConcreteStep::BatchStep(batch_step) => {
                batch_step.apply(dart, schema)
            },
            ConcreteStep::ReplaceNodeStep(replace_node_step) => {
                replace_node_step.apply(dart, schema)
            },
        }
    }
    fn to_concrete(&self) -> ConcreteStep {
        self.clone()
    }
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PatchStep {
    pub patches: Vec<Patch>,
}
impl Step for PatchStep {
    fn apply(
        &self,
        dart: &mut Draft,
        _: std::sync::Arc<moduforge_model::schema::Schema>,
    ) -> Result<step::StepResult, transform::TransformError> {
        match dart.apply_patches(&self.patches) {
            Ok(()) => Ok(dart.commit()),
            Err(err) => Err(TransformError::new(err.to_string())),
        }
    }

    fn to_concrete(&self) -> ConcreteStep {
        ConcreteStep::PatchStep(self.clone())
    }
}
/// 批量操作步骤
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct BatchStep {
    steps: Vec<ConcreteStep>,
}

impl BatchStep {
    pub fn new(steps: Vec<ConcreteStep>) -> Self {
        BatchStep { steps }
    }
}
impl Step for BatchStep {
    fn apply(
        &self,
        dart: &mut Draft,
        schema: Arc<Schema>,
    ) -> Result<StepResult, TransformError> {
        dart.begin = true;
        for step in &self.steps {
            let schema = schema.clone();
            let result = match step {
                ConcreteStep::UpdateAttrs(attr_step) => {
                    attr_step.apply(dart, schema)
                },
                ConcreteStep::AddNodeStep(add_node_step) => {
                    add_node_step.apply(dart, schema)
                },
                ConcreteStep::AddMarkStep(add_mark_step) => {
                    add_mark_step.apply(dart, schema)
                },
                ConcreteStep::RemoveNodeStep(remove_node_step) => {
                    remove_node_step.apply(dart, schema)
                },
                ConcreteStep::PatchStep(patch_step) => {
                    patch_step.apply(dart, schema)
                },
                ConcreteStep::MoveNodeStep(move_node_step) => {
                    move_node_step.apply(dart, schema)
                },
                ConcreteStep::ReplaceNodeStep(replace_node_step) => {
                    replace_node_step.apply(dart, schema)
                },
                ConcreteStep::BatchStep(batch_setp) => {
                    batch_setp.apply(dart, schema)
                },
            };
            match result {
                Ok(result) => {
                    if let Some(message) = result.failed {
                        return Ok(StepResult::fail(message));
                    }
                    // 继续执行下一个步骤
                },
                Err(err) => return Err(err),
            }
        }
        dart.begin = false;
        // 所有步骤执行成功，提交更改
        Ok(dart.commit())
    }

    fn to_concrete(&self) -> ConcreteStep {
        ConcreteStep::BatchStep(self.clone())
    }
}