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Compiler implementation of the D programming language.

Source: blockexit.d

enum BE: int;
BE stands for BlockExit.
It indicates if a statement does transfer control to another block. A block is a sequence of statements enclosed in { }
int blockExit(Statement s, FuncDeclaration func, bool mustNotThrow);
Determine mask of ways that a statement can exit.
Only valid after semantic analysis.
Statement s statement to check for block exit status
FuncDeclaration func function that statement s is in
bool mustNotThrow generate an error if it throws