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Merge pull request #241 from SteveL-MSFT/tree-sitter-parse
Implement use of tree-sitter parser
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright (c) Microsoft Corporation. | ||
| // Licensed under the MIT License. | ||
|
|
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| use base64::{Engine as _, engine::general_purpose}; | ||
|
|
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| use crate::DscError; | ||
| use crate::parser::functions::{FunctionArg, FunctionResult}; | ||
| use super::{Function, AcceptedArgKind}; | ||
|
|
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| #[derive(Debug, Default)] | ||
| pub struct Base64 {} | ||
|
|
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| impl Function for Base64 { | ||
| fn accepted_arg_types(&self) -> Vec<AcceptedArgKind> { | ||
| vec![AcceptedArgKind::String] | ||
| } | ||
|
|
||
| fn min_args(&self) -> usize { | ||
| 1 | ||
| } | ||
|
|
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| fn max_args(&self) -> usize { | ||
| 1 | ||
| } | ||
|
|
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| fn invoke(&self, args: &[FunctionArg]) -> Result<FunctionResult, DscError> { | ||
| let FunctionArg::String(arg) = args.get(0).unwrap() else { | ||
| return Err(DscError::Parser("Invalid argument type".to_string())); | ||
| }; | ||
| Ok(FunctionResult::String(general_purpose::STANDARD.encode(arg))) | ||
| } | ||
| } | ||
|
|
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| #[cfg(test)] | ||
| mod tests { | ||
| use crate::parser::Statement; | ||
|
|
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| #[test] | ||
| fn strings() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[base64('hello world')]").unwrap(); | ||
| assert_eq!(result, "aGVsbG8gd29ybGQ="); | ||
| } | ||
|
|
||
| #[test] | ||
| fn numbers() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[base64(123)]"); | ||
| assert!(result.is_err()); | ||
| } | ||
|
|
||
| #[test] | ||
| fn nested() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[base64(base64('hello world'))]").unwrap(); | ||
| assert_eq!(result, "YUdWc2JHOGdkMjl5YkdRPQ=="); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // Copyright (c) Microsoft Corporation. | ||
| // Licensed under the MIT License. | ||
|
|
||
| use crate::DscError; | ||
| use crate::functions::{Function, FunctionArg, FunctionResult, AcceptedArgKind}; | ||
|
|
||
| #[derive(Debug, Default)] | ||
| pub struct Concat {} | ||
|
|
||
| impl Function for Concat { | ||
| fn min_args(&self) -> usize { | ||
| 2 | ||
| } | ||
|
|
||
| fn max_args(&self) -> usize { | ||
| usize::MAX | ||
| } | ||
|
|
||
| fn accepted_arg_types(&self) -> Vec<AcceptedArgKind> { | ||
| vec![AcceptedArgKind::String, AcceptedArgKind::Integer] | ||
| } | ||
|
|
||
| fn invoke(&self, args: &[FunctionArg]) -> Result<FunctionResult, DscError> { | ||
| let mut result = String::new(); | ||
| for arg in args { | ||
| match arg { | ||
| FunctionArg::String(value) => { | ||
| result.push_str(value); | ||
| }, | ||
| FunctionArg::Integer(value) => { | ||
| result.push_str(&value.to_string()); | ||
| }, | ||
| _ => { | ||
| return Err(DscError::Parser("Invalid argument type".to_string())); | ||
| } | ||
| } | ||
| } | ||
| Ok(FunctionResult::String(result)) | ||
| } | ||
| } | ||
|
|
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| #[cfg(test)] | ||
| mod tests { | ||
| use crate::parser::Statement; | ||
|
|
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| #[test] | ||
| fn strings() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat('a', 'b')]").unwrap(); | ||
| assert_eq!(result, "ab"); | ||
| } | ||
|
|
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| #[test] | ||
| fn strings_with_spaces() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat('a ', ' ', ' b')]").unwrap(); | ||
| assert_eq!(result, "a b"); | ||
| } | ||
|
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| #[test] | ||
| fn numbers() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat(1, 2)]").unwrap(); | ||
| assert_eq!(result, "12"); | ||
| } | ||
|
|
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| #[test] | ||
| fn string_and_numbers() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat('a', 1, 'b', 2)]").unwrap(); | ||
| assert_eq!(result, "a1b2"); | ||
| } | ||
|
|
||
| #[test] | ||
| fn nested() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat('a', concat('b', 'c'), 'd')]").unwrap(); | ||
| assert_eq!(result, "abcd"); | ||
| } | ||
|
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| #[test] | ||
| fn invalid_one_parameter() { | ||
| let mut parser = Statement::new().unwrap(); | ||
| let result = parser.parse_and_execute("[concat('a')]"); | ||
| assert!(result.is_err()); | ||
| } | ||
| } |
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