vize_atelier_core 0.145.0

Atelier Core - The core workshop for Vize Vue template parsing and transforms
Documentation 
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//! Props generation functions.

mod directives;
mod events;
mod generate;
mod scan;

use crate::ast::{PropNode, RuntimeHelper};

use super::{context::CodegenContext, expression::generate_expression};

pub use directives::{StaticMerge, generate_directive_prop_with_static, is_supported_directive};
pub use events::von_event_key_for;
pub use generate::generate_props;

/// Check if there's a v-bind without argument (object spread)
pub(crate) fn has_vbind_object(props: &[PropNode<'_>]) -> bool {
    props.iter().any(|p| {
        if let PropNode::Directive(dir) = p {
            return dir.name == "bind" && dir.arg.is_none();
        }
        false
    })
}

/// Check if there's a v-on without argument (event object spread)
pub(crate) fn has_von_object(props: &[PropNode<'_>]) -> bool {
    props.iter().any(|p| {
        if let PropNode::Directive(dir) = p {
            return dir.name == "on" && dir.arg.is_none();
        }
        false
    })
}

/// Generate the v-bind object expression
pub(crate) fn generate_vbind_object_exp(ctx: &mut CodegenContext, props: &[PropNode<'_>]) {
    for p in props {
        if let PropNode::Directive(dir) = p
            && dir.name == "bind"
            && dir.arg.is_none()
            && let Some(exp) = &dir.exp
        {
            generate_expression(ctx, exp);
            return;
        }
    }
}

/// Generate the v-on object expression wrapped with toHandlers
pub(crate) fn generate_von_object_exp(ctx: &mut CodegenContext, props: &[PropNode<'_>]) {
    ctx.use_helper(RuntimeHelper::ToHandlers);
    ctx.push(ctx.helper(RuntimeHelper::ToHandlers));
    ctx.push("(");
    for p in props {
        if let PropNode::Directive(dir) = p
            && dir.name == "on"
            && dir.arg.is_none()
            && let Some(exp) = &dir.exp
        {
            generate_expression(ctx, exp);
            ctx.push(", true"); // true for handlerOnly
            break;
        }
    }
    ctx.push(")");
}