Reserved function names

[KittyGiraudel]

Sass should throw an error if one tries to create functions called or, and and not. This is an issue I opened in Sass repo a while ago: sass/sass#1265.

Test:

@function and() {
  @return "and";
}

@function or() {
  @return "or";
}

@function not() {
  @return "not";
}

test {
  not: not();
  or: or();
  and: and();
}

Expect:

Invalid function name "and".

Result:

test {
  not: "not";
  or: "or";
  and: "and"; }

Ref: http://sass-compatibility.github.io/#reserved_function_names

[xzyfer]

Spec added sass/sass-spec#167

[xzyfer]

This behaviour changed in Sass 3.3.9 - http://sass-lang.com/documentation/file.SASS_CHANGELOG.html#339_27_june_2014

Defining a function named “and”, “or”, or “not” is now an error at definition-time. This isn’t considered a backwards-incompatible change because although these functions could be defined previously, they could never be successfully invoked.