microcad-lang 0.5.0

µcad language
Documentation 
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// Copyright © 2024-2026 The µcad authors <info@microcad.xyz>
// SPDX-License-Identifier: AGPL-3.0-or-later

//! Format expression syntax element

use crate::lower::ir;

use microcad_lang_base::SrcRef;
use microcad_lang_proc_macros::SrcReferrer;

/// Format expression including format specification.
#[derive(Clone, Debug, PartialEq, SrcReferrer)]
pub struct FormatExpression {
    /// Format specifier
    pub spec: Option<ir::FormatSpec>,
    /// Expression to format
    pub expression: ir::Expression,
    /// Source code reference
    src_ref: SrcRef,
}

impl FormatExpression {
    /// Create new format expression.
    pub fn new(spec: Option<ir::FormatSpec>, expression: ir::Expression, src_ref: SrcRef) -> Self {
        Self {
            src_ref,
            spec,
            expression,
        }
    }
}

impl std::fmt::Display for FormatExpression {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        if let Some(spec) = &self.spec {
            write!(f, "{{{}:{}}}", spec, self.expression)
        } else {
            write!(f, "{{{}}}", self.expression)
        }
    }
}