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reasoning_parser/parsers/
glm45.rs

1// GLM45 specific reasoning parser.
2// Uses the same format as Qwen3 but has its own implementation for debugging.
3
4use crate::{
5    parsers::BaseReasoningParser,
6    traits::{ParseError, ParserConfig, ParserResult, ReasoningParser, DEFAULT_MAX_BUFFER_SIZE},
7};
8
9/// GLM45 reasoning parser.
10///
11/// This parser uses the same format as Qwen3 (<think>...</think>) but has
12/// its own implementation for better debugging and potential future customization.
13pub struct Glm45Parser {
14    base: BaseReasoningParser,
15}
16
17impl Glm45Parser {
18    /// Create a new GLM45 parser.
19    pub fn new() -> Self {
20        let config = ParserConfig {
21            think_start_token: "<think>".to_string(),
22            think_end_token: "</think>".to_string(),
23            stream_reasoning: true,
24            max_buffer_size: DEFAULT_MAX_BUFFER_SIZE,
25            initial_in_reasoning: false, // Requires explicit start token like Qwen3
26        };
27
28        Self {
29            base: BaseReasoningParser::new(config).with_model_type("glm45".to_string()),
30        }
31    }
32}
33
34impl Default for Glm45Parser {
35    fn default() -> Self {
36        Self::new()
37    }
38}
39
40impl ReasoningParser for Glm45Parser {
41    fn detect_and_parse_reasoning(&mut self, text: &str) -> Result<ParserResult, ParseError> {
42        self.base.detect_and_parse_reasoning(text)
43    }
44
45    fn parse_reasoning_streaming_incremental(
46        &mut self,
47        text: &str,
48    ) -> Result<ParserResult, ParseError> {
49        self.base.parse_reasoning_streaming_incremental(text)
50    }
51
52    fn reset(&mut self) {
53        self.base.reset();
54    }
55
56    fn model_type(&self) -> &str {
57        self.base.model_type()
58    }
59
60    fn is_in_reasoning(&self) -> bool {
61        self.base.is_in_reasoning()
62    }
63}
64
65#[cfg(test)]
66mod tests {
67    use super::*;
68
69    #[test]
70    fn test_glm45_initial_state() {
71        let mut parser = Glm45Parser::new();
72
73        // Should NOT treat text as reasoning without start token
74        let result = parser
75            .detect_and_parse_reasoning("This is normal content")
76            .unwrap();
77        assert_eq!(result.normal_text, "This is normal content");
78        assert_eq!(result.reasoning_text, "");
79    }
80
81    #[test]
82    fn test_glm45_with_tokens() {
83        let mut parser = Glm45Parser::new();
84
85        // Should extract reasoning with proper tokens
86        let result = parser
87            .detect_and_parse_reasoning("<think>reasoning content</think>answer")
88            .unwrap();
89        assert_eq!(result.normal_text, "answer");
90        assert_eq!(result.reasoning_text, "reasoning content");
91    }
92
93    #[test]
94    fn test_glm45_streaming() {
95        let mut parser = Glm45Parser::new();
96
97        // First chunk - normal text
98        let result1 = parser
99            .parse_reasoning_streaming_incremental("normal text ")
100            .unwrap();
101        assert_eq!(result1.normal_text, "normal text ");
102        assert_eq!(result1.reasoning_text, "");
103
104        // Second chunk - enters reasoning
105        let result2 = parser
106            .parse_reasoning_streaming_incremental("<think>reasoning")
107            .unwrap();
108        assert_eq!(result2.normal_text, "");
109        assert_eq!(result2.reasoning_text, "reasoning");
110
111        // Third chunk - exits reasoning
112        let result3 = parser
113            .parse_reasoning_streaming_incremental("</think>answer")
114            .unwrap();
115        assert_eq!(result3.normal_text, "answer");
116        assert_eq!(result3.reasoning_text, "");
117    }
118
119    #[test]
120    fn test_model_type() {
121        let parser = Glm45Parser::new();
122        assert_eq!(parser.model_type(), "glm45");
123    }
124}