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// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // method declarations package decls2 import "io" const pi = 3.1415 func (T1) m /* ERROR "already declared" */ () {} func (T2) m(io.Writer) {} type T3 struct { f *T3 } type T6 struct { x int } func (t *T6) m1() int { return t.x } func f() { var t *T6 t.m1() } // Double declarations across package files const c_double /* ERROR "redeclared" */ = 0 type t_double /* ERROR "redeclared" */ int var v_double /* ERROR "redeclared" */ int func f_double /* ERROR "redeclared" */ () {} // Blank methods need to be type-checked. // Verify by checking that errors are reported. func (T /* ERROR "undefined" */ ) _() {} func (T1) _(undefined /* ERROR "undefined" */ ) {} func (T1) _() int { return "foo" /* ERRORx "cannot use .* in return statement" */ } // Methods with undefined receiver type can still be checked. // Verify by checking that errors are reported. func (Foo /* ERROR "undefined" */ ) m() {} func (Foo /* ERROR "undefined" */ ) m(undefined /* ERROR "undefined" */ ) {} func (Foo /* ERRORx `undefined` */ ) m() int { return "foo" /* ERRORx "cannot use .* in return statement" */ } func (Foo /* ERROR "undefined" */ ) _() {} func (Foo /* ERROR "undefined" */ ) _(undefined /* ERROR "undefined" */ ) {} func (Foo /* ERROR "undefined" */ ) _() int { return "foo" /* ERRORx "cannot use .* in return statement" */ } // Receiver declarations are regular parameter lists; // receiver types may use parentheses, and the list // may have a trailing comma. type T7 struct {} func (T7) m1() {} func ((T7)) m2() {} func ((*T7)) m3() {} func (x *(T7),) m4() {} func (x (*(T7)),) m5() {} func (x ((*((T7)))),) m6() {} // Check that methods with parenthesized receiver are actually present (issue #23130). var ( _ = T7.m1 _ = T7.m2 _ = (*T7).m3 _ = (*T7).m4 _ = (*T7).m5 _ = (*T7).m6 )
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