Why vaadin-sass-compiler does not Warn about math errors and undefined vari

Yuriy Artamonov

Example:

[class*="textfield"] {
    padding-right: $v-unit-size * 1.2; / 0
}

Result is disheartening:

.bill .v-datefield-test [class*="textfield"] {
     padding-right: ∞px;
}

And if I use not defined anywhere variable, it just skipped and inserted to result CSS as defined:

.bill .v-datefield [class*="textfield"] {
    padding-right: $v-unit-size-old;
}

Why vaadin-sass-compiler does not Warn about math errors and undefined variables?