https://issues.dlang.org/show_bug.cgi?id=14973
Issue ID: 14973 Summary: [REG2.068] compiler inference of contexts for nested map seems broken Product: D Version: D2 Hardware: All OS: All Status: NEW Keywords: rejects-valid Severity: regression Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: k.hara...@gmail.com This is separated from issue 14962 because the root issue is not exactly same. import std.range; import std.algorithm; class Foo { int baz() { return 1;} void bar() { auto s = [1].map!(i => baz()); // compiles auto r = [1].map!(i => [1].map!(j => baz())); // error } } testfoo.d(8): Error: need 'this' for 'baz' of type 'int()' /Users/steves/git/dmd2/osx/bin/../../src/phobos/std/algorithm/iteration.d(459): instantiated from here: MapResult!(__lambda2, int[]) testfoo.d(8): instantiated from here: map!(int[]) /Users/steves/git/dmd2/osx/bin/../../src/phobos/std/algorithm/iteration.d(549): instantiated from here: __lambda2!int /Users/steves/git/dmd2/osx/bin/../../src/phobos/std/algorithm/iteration.d(459): instantiated from here: MapResult!(__lambda2, int[]) testfoo.d(8): instantiated from here: map!(int[]) --