lgx_runtime/core/
parser.rs

1use crate::models::{ASTNode, ParsedCode};
2use anyhow::Result;
3use tracing::debug;
4
5pub struct Parser {
6    // Parser state and configuration
7}
8
9impl Parser {
10    pub fn new() -> Self {
11        Self {}
12    }
13
14    pub fn parse(&self, code: &str) -> Result<ParsedCode> {
15        debug!("Parsing LGX code: {} characters", code.len());
16        
17        let mut nodes = Vec::new();
18        let lines: Vec<&str> = code.lines().collect();
19        
20        for (line_num, line) in lines.iter().enumerate() {
21            let trimmed = line.trim();
22            if !trimmed.is_empty() && !trimmed.starts_with('#') {
23                if let Some(node) = self.parse_line(trimmed, line_num + 1)? {
24                    nodes.push(node);
25                }
26            }
27        }
28        
29        Ok(ParsedCode {
30            nodes,
31            source: code.to_string(),
32            line_count: lines.len(),
33        })
34    }
35    
36    fn parse_line(&self, line: &str, line_num: usize) -> Result<Option<ASTNode>> {
37        if line.starts_with("CREATE") {
38            return Ok(Some(ASTNode::Create {
39                entity: self.extract_entity(line),
40                fields: self.extract_fields(line),
41                line: line_num,
42            }));
43        }
44        
45        if line.starts_with("READ") {
46            return Ok(Some(ASTNode::Read {
47                entity: self.extract_entity(line),
48                conditions: self.extract_conditions(line),
49                line: line_num,
50            }));
51        }
52        
53        if line.starts_with("UPDATE") {
54            return Ok(Some(ASTNode::Update {
55                entity: self.extract_entity(line),
56                fields: self.extract_fields(line),
57                conditions: self.extract_conditions(line),
58                line: line_num,
59            }));
60        }
61        
62        if line.starts_with("DELETE") {
63            return Ok(Some(ASTNode::Delete {
64                entity: self.extract_entity(line),
65                conditions: self.extract_conditions(line),
66                line: line_num,
67            }));
68        }
69        
70        if line.starts_with("FUNCTION") {
71            return Ok(Some(ASTNode::Function {
72                name: self.extract_function_name(line),
73                parameters: self.extract_parameters(line),
74                body: self.extract_function_body(line),
75                line: line_num,
76            }));
77        }
78        
79        Ok(None)
80    }
81    
82    fn extract_entity(&self, line: &str) -> String {
83        let parts: Vec<&str> = line.split_whitespace().collect();
84        if parts.len() > 1 {
85            parts[1].to_string()
86        } else {
87            String::new()
88        }
89    }
90    
91    fn extract_fields(&self, _line: &str) -> Vec<String> {
92        Vec::new()
93    }
94    
95    fn extract_conditions(&self, _line: &str) -> Vec<String> {
96        Vec::new()
97    }
98    
99    fn extract_function_name(&self, line: &str) -> String {
100        let parts: Vec<&str> = line.split_whitespace().collect();
101        if parts.len() > 1 {
102            parts[1].to_string()
103        } else {
104            String::new()
105        }
106    }
107    
108    fn extract_parameters(&self, _line: &str) -> Vec<String> {
109        Vec::new()
110    }
111    
112    fn extract_function_body(&self, _line: &str) -> String {
113        String::new()
114    }
115}
lgx_runtime/core/parser.rs

lgx_runtime/core/
parser.rs
