Library Reference

version 2.112.0

Internal API

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dmd.nogc

Checks that a function marked@nogc does not invoke the Garbage Collector.

SpecificationNo-GC Functions

Authors:

Walter Bright

License:

Boost License 1.0

Sourcenogc.d

Documentationhttps://dlang.org/phobos/dmd_nogc.html

Coveragehttps://codecov.io/gh/dlang/dmd/src/master/compiler/src/dmd/nogc.d

classNOGCVisitor:dmd.visitor.StoppableVisitor;

Look for GC-allocations

boolsetGC(Scope*sc, FuncDeclarationfd, Locloc, const(char)*fmt, RootObject[]args...);

The function is doing something that may allocate with the GC, so mark it as not nogc (not no-how).

Parameters:

Scope*`sc`	scope that the GC action is in
FuncDeclaration`fd`	function
Loc`loc`	location of GC action
const(char)*`fmt`	format string for error message. Must include "%s%s" for the function kind and name.
RootObject[]`args`	arguments to format string

Returns:

true if function is marked as @nogc, meaning a user error occurred

boolsetGCCall(Scope*sc, FuncDeclarationfd, FuncDeclarationf);

The function calls non-@nogc function f, mark it as not nogc.

Parameters:

Scope*`sc`	scope that the GC action is in
FuncDeclaration`fd`	function doing the call
FuncDeclaration`f`	function being called

Returns:

true if function is marked as @nogc, meaning a user error occurred

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Library Reference

dmd.nogc