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Function in macro compiler

`attr_value`

fn attr_value(Vec<Attr> attrs, string attr, string key, string fallback) -> string

Import

use macro::{attr_value};

Source: compiler/src/prelude/macro.hy

#[attr(key = "value")] from an attribute list, or fallback.

Parameters#

Name	Type
`attrs`	`Vec<Attr>`
`attr`	`string`
`key`	`string`
`fallback`	`string`

Returns#

string

See also#

join: Join fragments with sep (the lowering of $(xs) sep *).
lit: A string literal: lit("a\"b") splices as "a\"b".
lit_int: An integer literal.
raw: Raw source, spliced as is.
concat: Combine several generated item lists.
ident: A name, for splicing generated identifiers: ${ident("to_" + n)}.
decimal: A decimal integer the compiler wrote (- then digits, in range).
attr_index: Index of the attribute called name, or -1.