ImplicitContext.query

Query a context variable (with the possibility that it doesn't exist). The look-up will chain to above contexts like sort of namespaces or a dynamic cast. Topmost context gets the lookup, like namespaces or prototype chains.

Note: Using a mismatched type size is a programming error and will crash.

struct ImplicitContext
nothrow @nogc @safe @trusted
bool
query
(
T
)
(
const(char)[] name
,
out T res
)

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