a2kit 4.4.1

Retro disk image and language utility
Documentation 
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//! Parse settings string sent by any client.
//! 
//! The server will check for specific keys that may affect its operation.
//! These are then used by the various modules to set their own flags.

use serde_json;
use crate::DYNERR;
use crate::lang::{update_json_bool,update_json_i64,update_json_vec,update_json_severity};
use lsp_types::DiagnosticSeverity;

#[derive(Clone)]
pub struct Flag {
    pub case_sensitive: Option<DiagnosticSeverity>,
    pub undeclared_arrays: Option<DiagnosticSeverity>,
    pub undefined_variables: Option<DiagnosticSeverity>,
    pub bad_references: Option<DiagnosticSeverity>,
    pub immediate_mode: Option<DiagnosticSeverity>
}
#[derive(Clone)]
pub struct Warn {
    pub length: i64
}
#[derive(Clone)]
pub struct Hovers {
    pub special_addresses: bool,
    pub keywords: bool
}
#[derive(Clone)]
pub struct Completions {
    pub lower_case: bool
}
#[derive(Clone)]
pub struct Detokenizer {
    pub escapes: Vec<i64>,
    pub max_lines: i64,
    pub max_line_length: i64
}
#[derive(Clone)]
pub struct Settings {
    pub flag: Flag,
    pub warn: Warn,
    pub hovers: Hovers,
    pub completions: Completions,
    pub detokenizer: Detokenizer
}

impl Settings {
    pub fn new() -> Self {
        Self {
            flag : Flag {
                case_sensitive: None,
                undeclared_arrays: Some(DiagnosticSeverity::WARNING),
                undefined_variables: Some(DiagnosticSeverity::WARNING),
                bad_references: Some(DiagnosticSeverity::ERROR),
                immediate_mode: Some(DiagnosticSeverity::ERROR)
            },
            warn : Warn {
                length: 150
            },
            hovers : Hovers {
                special_addresses: true,
                keywords: true
            },
            completions : Completions {
                lower_case: true
            },
            detokenizer : Detokenizer {
                escapes: vec![138,141],
                max_lines: 5000,
                max_line_length: 255
            }
        }
    }
}

pub fn parse(json: &str) -> Result<Settings,DYNERR> {
    let mut ans = Settings::new();
    if let Ok(root) = serde_json::from_str::<serde_json::Value>(json) {
        if let Some(obj) = root.as_object() {
            for (key,val) in obj {
                match key.as_str() {
                    "flag" => {
                        update_json_severity(val,"caseSensitive",&mut ans.flag.case_sensitive);
                        update_json_severity(val,"undeclaredArrays",&mut ans.flag.undeclared_arrays);
                        update_json_severity(val,"undefinedVariables",&mut ans.flag.undefined_variables);
                        update_json_severity(val,"badReferences",&mut ans.flag.bad_references);
                        update_json_severity(val,"immediateMode",&mut ans.flag.immediate_mode);
                    },
                    "warn" => {
                        update_json_i64(val,"length",&mut ans.warn.length);
                    }
                    "hovers" => {
                        update_json_bool(val,"specialAddresses",&mut ans.hovers.special_addresses);
                        update_json_bool(val,"keywords",&mut ans.hovers.keywords);
                    },
                    "completions" => {
                        update_json_bool(val,"lowerCase",&mut ans.completions.lower_case);
                    },
                    "detokenizer" => {
                        update_json_i64(val, "maxLineLength", &mut ans.detokenizer.max_line_length);
                        update_json_i64(val,"maxLines",&mut ans.detokenizer.max_lines);
                        update_json_vec(val,"escapes",&mut ans.detokenizer.escapes);
                    },
                    _ => {}
                }
            }
        }
    }
    Ok(ans)
}