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// Copyright © 2024-2026 The µcad authors <info@ucad.xyz>
// SPDX-License-Identifier: AGPL-3.0-or-later
use microcad_lang::{diag::*, eval::*, parameter, resolve::*, value::*};
pub fn assert() -> Symbol {
Symbol::new_builtin_fn(
"assert",
[
parameter!(v : Bool), // Parameter with any type
parameter!(message: String = String::new()), // Optional message
]
.into_iter(),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params) {
Ok(multi_args) => {
for a in multi_args.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 {
message
}),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
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 {
true
}
}
pub fn assert_eq() -> Symbol {
Symbol::new_builtin_fn(
"assert_eq",
[
parameter!(array), // Parameter with any type
parameter!(message: String = String::new()), // Optional message
]
.into_iter(),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params) {
Ok(multi_args) => {
for array in multi_args.args {
let array_value = &array.get_value("array").expect("missing parameter");
if let Value::Array(exprs) = array_value {
if !all_equal(exprs.iter()) {
let message: String = array.get("message");
context.error(
args,
EvalError::AssertionFailed(if message.is_empty() {
format!("Values differ: {exprs}")
} else {
"{message}".to_string()
}),
)?;
}
} else {
let message: String = array.get("message");
context.error(
args,
EvalError::AssertionFailed(if message.is_empty() {
format!("Invalid: {array_value}")
} else {
"{message}".to_string()
}),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
None,
)
}
pub fn assert_valid() -> Symbol {
Symbol::new_builtin_fn(
"assert_valid",
[
parameter!(target: Target), // Parameter name
parameter!(message: String = String::new()), // Optional message
]
.into_iter(),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params) {
Ok(multi_args) => {
for arg in multi_args.args {
let target = arg.get::<Target>("target");
if target.target.is_none() {
context.error(
&arg,
EvalError::AssertionFailed(format!(
"Symbol `{}` not found.",
target.name
)),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
None,
)
}
pub fn assert_invalid() -> Symbol {
Symbol::new_builtin_fn(
"assert_invalid",
[
parameter!(target: Target), // Parameter name
parameter!(message: String = String::new()), // Optional message
]
.into_iter(),
&|params, args, context| {
match ArgumentMatch::find_multi_match(args, params) {
Ok(multi_args) => {
for arg in multi_args.args {
let target = arg.get::<Target>("target");
if let Some(query) = target.target {
log::trace!("target_name: {query}, {}", target.name);
context.error(
&arg,
EvalError::AssertionFailed(format!(
"Found valid symbol '{name}' within module '{base}'.",
name = target.name,
base = query.base(&target.name)
)),
)?;
}
}
}
Err(err) => {
// Called `assert` with no or more than 2 parameters
context.error(args, err)?
}
}
Ok(Value::None)
},
None,
)
}