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https://github.com/c3lang/c3c.git
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2439405e70
- `$for` "()" replaced by trailing ":" `$for (var $x = 0; $x < FOO; $x++)` -> `$for var $x = 0; $x < FOO; $x++:` - `$switch` "()" replaced by trailing ":" `$switch ($Type)` -> `$switch $Type:` - Empty `$switch` requires trailing ":" `$switch` -> `$switch:`
129 lines
2.5 KiB
Plaintext
129 lines
2.5 KiB
Plaintext
// Copyright (c) 2021-2024 Christoffer Lerno and contributors. All rights reserved.
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// Use of this source code is governed by the MIT license
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// a copy of which can be found in the LICENSE_STDLIB file.
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module std::core::builtin;
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<*
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@require types::@comparable_value(a) && types::@comparable_value(b)
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*>
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macro less(a, b) @builtin
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{
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$switch:
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$case $defined(a.less):
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return a.less(b);
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$case $defined(a.compare_to):
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return a.compare_to(b) < 0;
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$default:
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return a < b;
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$endswitch
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}
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<*
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@require types::@comparable_value(a) && types::@comparable_value(b)
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*>
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macro less_eq(a, b) @builtin
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{
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$switch:
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$case $defined(a.less):
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return !b.less(a);
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$case $defined(a.compare_to):
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return a.compare_to(b) <= 0;
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$default:
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return a <= b;
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$endswitch
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}
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<*
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@require types::@comparable_value(a) && types::@comparable_value(b)
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*>
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macro greater(a, b) @builtin
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{
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$switch:
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$case $defined(a.less):
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return b.less(a);
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$case $defined(a.compare_to):
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return a.compare_to(b) > 0;
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$default:
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return a > b;
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$endswitch
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}
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<*
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@require types::@comparable_value(a) && types::@comparable_value(b)
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*>
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macro int compare_to(a, b) @builtin
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{
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$switch:
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$case $defined(a.compare_to):
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return a.compare_to(b);
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$case $defined(a.less):
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return (int)b.less(a) - (int)a.less(b);
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$default:
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return (int)(a > b) - (int)(a < b);
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$endswitch
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}
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<*
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@require types::@comparable_value(a) && types::@comparable_value(b)
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*>
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macro greater_eq(a, b) @builtin
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{
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$switch:
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$case $defined(a.less):
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return !a.less(b);
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$case $defined(a.compare_to):
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return a.compare_to(b) >= 0;
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$default:
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return a >= b;
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$endswitch
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}
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<*
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@require types::@equatable_value(a) && types::@equatable_value(b) `values must be equatable`
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*>
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macro bool equals(a, b) @builtin
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{
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$switch:
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$case $defined(a.equals, a.equals(b)):
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return a.equals(b);
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$case $defined(a.compare_to, a.compare_to(b)):
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return a.compare_to(b) == 0;
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$case $defined(a.less):
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return !a.less(b) && !b.less(a);
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$default:
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return a == b;
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$endswitch
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}
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macro min(x, ...) @builtin
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{
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$if $vacount == 1:
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return less(x, $vaarg[0]) ? x : $vaarg[0];
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$else
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var result = x;
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$for var $i = 0; $i < $vacount; $i++:
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if (less($vaarg[$i], result))
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{
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result = $vaarg[$i];
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}
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$endfor
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return result;
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$endif
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}
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macro max(x, ...) @builtin
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{
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$if $vacount == 1:
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return greater(x, $vaarg[0]) ? x : $vaarg[0];
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$else
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var result = x;
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$for var $i = 0; $i < $vacount; $i++:
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if (greater($vaarg[$i], result))
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{
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result = $vaarg[$i];
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}
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$endfor
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return result;
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$endif
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}
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