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// Copyright © 2024-2025 The µcad authors <info@ucad.xyz>
// SPDX-License-Identifier: AGPL-3.0-or-later
use std::str::FromStr;
use microcad_lang::{diag::*, eval::*, parameter, resolve::*, syntax::*, value::*};
pub fn assert() -> Symbol {
Symbol::new_builtin(
Identifier::no_ref("assert"),
Some(
[
parameter!(v : Bool), // Parameter with any type
parameter!(message: String = String::new()), // Optional message
]
.into_iter()
.collect(),
),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params.expect("parameter list")) {
Ok(multi_args) => {
for a in multi_args {
let v: bool = a.get("v");
if !v {
let message: String = a.get("message");
context.error(
args,
EvalError::AssertionFailed(if message.is_empty() {
format!("{v}")
} else {
format!("{v}: {message}")
}),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
)
}
fn all_equal<T: PartialEq + std::fmt::Debug>(mut iter: impl Iterator<Item = T>) -> bool {
if let Some(first) = iter.next() {
iter.all(|x| x == first)
} else {
// Wenn der Iterator leer ist, gibt es keine Elemente zum Vergleichen.
true
}
}
pub fn assert_eq() -> Symbol {
Symbol::new_builtin(
Identifier::no_ref("assert_eq"),
Some(
[
parameter!(a), // Parameter with any type
parameter!(message: String = String::new()), // Optional message
]
.into_iter()
.collect(),
),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params.expect("ParameterList")) {
Ok(multi_args) => {
for a in multi_args {
let a_value = &a.get_value("a").expect("missing parameter");
if let Value::Array(exprs) = a_value {
if !all_equal(exprs.iter()) {
let message: String = a.get("message");
context.error(
args,
EvalError::AssertionFailed(if message.is_empty() {
format!("Values differ: {exprs}")
} else {
"{message}".to_string()
}),
)?;
}
} else {
let message: String = a.get("message");
context.error(
args,
EvalError::AssertionFailed(if message.is_empty() {
format!("Invalid: {a_value}")
} else {
"{message}".to_string()
}),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
)
}
pub fn assert_valid() -> Symbol {
let id = Identifier::from_str("assert_valid").expect("valid id");
Symbol::new_builtin(id, None, &|_, args, context| {
if let Ok((_, arg)) = args.get_single() {
if let Ok(name) = QualifiedName::try_from(arg.value.to_string()) {
match context.lookup(&name) {
Ok(symbol) => {
if let Ok(value) = symbol.get_value() {
if value.is_invalid() {
context.error(
&arg,
EvalError::AssertionFailed(format!("invalid value: {value}")),
)?;
}
}
}
Err(err) => context.error(&arg, err)?,
}
}
}
Ok(Value::None)
})
}
pub fn assert_invalid() -> Symbol {
let id = Identifier::from_str("assert_invalid").expect("valid id");
Symbol::new_builtin(id, None, &|_, args, context| {
if let Ok((_, arg)) = args.get_single() {
if let Ok(name) = QualifiedName::try_from(arg.value.to_string()) {
if let Ok(symbol) = context.lookup(&name) {
if let Ok(value) = symbol.get_value() {
if !value.is_invalid() {
context.error(&arg, EvalError::SymbolFound(symbol.full_name()))?
}
}
}
}
}
Ok(Value::None)
})
}