dmd.staticcond

Compiler implementation of the D programming language.

Authors:

Walter Bright

License:

Boost License 1.0

Source

staticcond.d

Documentation

https://dlang.org/phobos/dmd_staticcond.html

Coverage

https://codecov.io/gh/dlang/dmd/src/master/src/dmd/staticcond.d

bool evalStaticCondition(Scope* sc, Expression original, Expression e, out bool errors, Expressions* negatives = null);

Semantically analyze and then evaluate a static condition at compile time. This is special because short circuit operators &&, || and ?: at the top level are not semantically analyzed if the result of the expression is not necessary.

Parameters:

Scope* sc	instantiating scope
Expression original	original expression, for error messages
Expression e	resulting expression
bool errors	set to true if errors occurred
Expressions* negatives	array to store negative clauses

Returns:

true if evaluates to true

const(char)* visualizeStaticCondition(Expression original, Expression instantiated, const Expression[] negatives, bool full, ref uint itemCount);

Format a static condition as a tree-like structure, marking failed and bypassed expressions.

Parameters:

Expression original	original expression
Expression instantiated	instantiated expression
Expression[] negatives	array with negative clauses from instantiated expression
bool full	controls whether it shows the full output or only failed parts
uint itemCount	returns the number of written clauses

Returns:

formatted string or null if the expressions were null, or if the instantiated expression is not based on the original one