cairo_lang_syntax::node::helpers

Trait QueryAttrs

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pub trait QueryAttrs {
    // Provided methods
    fn query_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> Vec<Attribute> { ... }
    fn find_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> Option<Attribute> { ... }
    fn has_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> bool { ... }
    fn has_attr_with_arg(
        &self,
        db: &dyn SyntaxGroup,
        attr_name: &str,
        arg_name: &str,
    ) -> bool { ... }
}
Expand description

Trait for querying attributes of AST items.

Provided Methods§

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fn query_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> Vec<Attribute>

Collect all attributes named exactly attr attached to this node.

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fn find_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> Option<Attribute>

Find first attribute named exactly attr attached do this node.

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fn has_attr(&self, db: &dyn SyntaxGroup, attr: &str) -> bool

Check if this node has an attribute named exactly attr.

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fn has_attr_with_arg( &self, db: &dyn SyntaxGroup, attr_name: &str, arg_name: &str, ) -> bool

Checks if the given object has an attribute with the given name and argument.

Implementors§