Improve errors #99
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Improve errors #99
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Make some Bad Argumement messages from builtin functions match dart-sass.
Also, mark optional arguments as having a default null value.
With massive refactor of fuction declaration macros and formal args.
Fix detection of expected errors in spectest.
Mainly handlig the modules argument.
It was simple enough and only used once.
kaj
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Mar 14, 2021
Progress: 3371 of 5945 tests passed in dart-sass compatibility mode. ### Breaking changes * The unit of a `Numeric` is now a `UnitSet` rather than a `Unit`. * `Error` has new variants and a new field in `BadArguments`. * A sass::Value::Call now has a source position. * A `Rational` is now a `Ratio<i64>` rather than a `Ratio<isize>`. ### Improvements * Added a Contributing section to readme. * Handle values with multiple units. PR #97. * Show call position for errors in function calls, and test for type errors in many standard functions. Many error messages are made identical to dart-sass, improving test-suit progress with more than 400 tests. PR #99. * Fix issue #98: overflow in rational number arithmetic. * Allow `@at-root` at document root. * Boolean operators is truly lazy, e.g. `false and f($x)` does not call `f`. * Refactored number parsing to use overflowing rationals. PR #100. * Test suite sass-spec updated to 2021-03-02. * Updated num-rational and num-bigint to 0.4.0. Thanks to @alvra for reporting #98. Tested with rustc 1.50.0 (cb75ad5db 2021-02-10), rustc 1.48.0 (7eac88abb 2020-11-16), rustc 1.46.0 (04488afe3 2020-08-24), rustc 1.44.1 (c7087fe00 2020-06-17), rustc 1.51.0-beta.6 (6a1835ad7 2021-03-12), and rustc 1.52.0-nightly (acca81892 2021-03-13).
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Detect bad arguments to built-in functions and format error messages to look like dart-sass.
Also, lots of fixes in the built-in functions. This PR is way to large, I got a bit carried away.