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5f923cd | 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 | // Copyright 2025 The Google AI Edge Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use serde_json::{Map, Value};
fn parse_tool_call(map: &Map<String, Value>) -> Result<Value, String> {
let name = map.get("name").and_then(|v| v.as_str()).unwrap_or("").to_string();
if name.is_empty() {
return Err("Tool call missing name.".to_string());
}
let args = map.get("arguments").or(map.get("args"));
let mut tool_call_map = Map::new();
tool_call_map.insert("name".to_string(), serde_json::json!(name));
match args {
Some(Value::Object(args_map)) => {
tool_call_map.insert("arguments".to_string(), Value::Object(args_map.clone()));
}
Some(_) => return Err("Tool call arguments are not an object.".to_string()),
None => {
tool_call_map.insert("arguments".to_string(), serde_json::json!({}));
}
}
Ok(Value::Object(tool_call_map))
}
fn process_json_root(root: Value) -> Result<Vec<Value>, String> {
let mut tool_calls = Vec::new();
let items = match root {
Value::Array(arr) => arr,
_ => vec![root],
};
for item in items {
if let Value::Object(map) = item {
tool_calls.push(parse_tool_call(&map)?);
}
}
Ok(tool_calls)
}
pub fn parse_json_expression(text: &str) -> Result<Vec<Value>, String> {
let json_result: Result<Value, _> = serde_json::from_str(text);
match json_result {
Ok(root) => process_json_root(root),
Err(e) => Err(e.to_string()),
}
}
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