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darklua_core/rules/
method_def.rs

1use crate::nodes::{Block, FunctionStatement};
2use crate::process::{DefaultVisitor, NodeProcessor, NodeVisitor};
3use crate::rules::{
4    Context, FlawlessRule, RuleConfiguration, RuleConfigurationError, RuleMetadata, RuleProperties,
5};
6
7use super::verify_no_rule_properties;
8
9struct FunctionMutator;
10
11impl NodeProcessor for FunctionMutator {
12    fn process_function_statement(&mut self, function: &mut FunctionStatement) {
13        function.remove_method();
14    }
15}
16
17pub const REMOVE_METHOD_DEFINITION_RULE_NAME: &str = "remove_method_definition";
18
19/// Change method functions into regular functions.
20#[derive(Debug, Default, PartialEq, Eq)]
21pub struct RemoveMethodDefinition {
22    metadata: RuleMetadata,
23}
24
25impl FlawlessRule for RemoveMethodDefinition {
26    fn flawless_process(&self, block: &mut Block, _: &Context) {
27        let mut processor = FunctionMutator;
28        DefaultVisitor::visit_block(block, &mut processor);
29    }
30}
31
32impl RuleConfiguration for RemoveMethodDefinition {
33    fn configure(&mut self, properties: RuleProperties) -> Result<(), RuleConfigurationError> {
34        verify_no_rule_properties(&properties)?;
35
36        Ok(())
37    }
38
39    fn get_name(&self) -> &'static str {
40        REMOVE_METHOD_DEFINITION_RULE_NAME
41    }
42
43    fn serialize_to_properties(&self) -> RuleProperties {
44        RuleProperties::new()
45    }
46
47    fn set_metadata(&mut self, metadata: RuleMetadata) {
48        self.metadata = metadata;
49    }
50
51    fn metadata(&self) -> &RuleMetadata {
52        &self.metadata
53    }
54}
55
56#[cfg(test)]
57mod test {
58    use super::*;
59    use crate::rules::Rule;
60
61    use insta::assert_json_snapshot;
62
63    fn new_rule() -> RemoveMethodDefinition {
64        RemoveMethodDefinition::default()
65    }
66
67    fn wrap(rule: RemoveMethodDefinition) -> Box<dyn Rule> {
68        Box::new(rule)
69    }
70
71    #[test]
72    fn serialize_default_rule() {
73        assert_json_snapshot!(wrap(new_rule()), @r###""remove_method_definition""###);
74    }
75
76    #[test]
77    fn configure_with_extra_field_error() {
78        let result = json5::from_str::<Box<dyn Rule>>(
79            r#"{
80            rule: 'remove_method_definition',
81            prop: "something",
82        }"#,
83        );
84        insta::assert_snapshot!(result.unwrap_err().to_string(), @"unexpected field 'prop' at line 1 column 1");
85    }
86}