From 632cab6c337c9f17263e6fc2dbcacacdd2638537 Mon Sep 17 00:00:00 2001 From: nathan Date: Tue, 1 May 2001 12:56:12 +0000 Subject: [PATCH] cp: * cp-tree.def (USING_STMT): New statement node. * cp-tree.h (USING_STMT_NAMESPACE): New macro. * decl2.c (do_using_directive): Add USING_STMT to statement tree. Don't emit errors when processing template decl. * pt.c (tsubst_expr, USING_STMT case): New case. * semantics.c (cp_expand_stmt, USING_STMT case): New case. testsuite: * g++.old-deja/g++.ns/template17.C: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@41724 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/cp/ChangeLog | 9 +++++++ gcc/cp/cp-tree.def | 3 +++ gcc/cp/cp-tree.h | 3 ++- gcc/cp/decl2.c | 9 +++++-- gcc/cp/pt.c | 8 +++++- gcc/cp/semantics.c | 3 +++ gcc/testsuite/ChangeLog | 4 +++ gcc/testsuite/g++.old-deja/g++.ns/template17.C | 37 ++++++++++++++++++++++++++ 8 files changed, 72 insertions(+), 4 deletions(-) create mode 100644 gcc/testsuite/g++.old-deja/g++.ns/template17.C diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index b082ce2..c3b8cf0 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,14 @@ 2001-05-01 Nathan Sidwell + * cp-tree.def (USING_STMT): New statement node. + * cp-tree.h (USING_STMT_NAMESPACE): New macro. + * decl2.c (do_using_directive): Add USING_STMT to statement + tree. Don't emit errors when processing template decl. + * pt.c (tsubst_expr, USING_STMT case): New case. + * semantics.c (cp_expand_stmt, USING_STMT case): New case. + +2001-05-01 Nathan Sidwell + * call.c (build_new_op): Convert args from reference here. (build_conditional_expr): Don't convert here. diff --git a/gcc/cp/cp-tree.def b/gcc/cp/cp-tree.def index 486667c..ee104f5 100644 --- a/gcc/cp/cp-tree.def +++ b/gcc/cp/cp-tree.def @@ -171,6 +171,9 @@ DEFTREECODE (TYPEOF_TYPE, "typeof_type", 't', 0) This is not an alias, but is later expanded into multiple aliases. */ DEFTREECODE (USING_DECL, "using_decl", 'd', 0) +/* A using directive. The operand is USING_STMT_NAMESPACE. */ +DEFTREECODE (USING_STMT, "using_directive", 'e', 1) + /* An un-parsed default argument. Looks like an IDENTIFIER_NODE. */ DEFTREECODE (DEFAULT_ARG, "default_arg", 'x', 2) diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h index a8b22a4..69623fb 100644 --- a/gcc/cp/cp-tree.h +++ b/gcc/cp/cp-tree.h @@ -3051,6 +3051,8 @@ extern int flag_new_for_scope; #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) +#define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) + /* Nonzero if this try block is a function try block. */ #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) @@ -3058,7 +3060,6 @@ extern int flag_new_for_scope; #define SUBOBJECT_CLEANUP(NODE) TREE_OPERAND (SUBOBJECT_CHECK (NODE), 0) #define START_CATCH_TYPE(NODE) TREE_TYPE (START_CATCH_STMT_CHECK (NODE)) - /* Nonzero if this CTOR_STMT is for the beginning of a constructor. */ #define CTOR_BEGIN_P(NODE) \ (TREE_LANG_FLAG_0 (CTOR_STMT_CHECK (NODE))) diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c index 8cfc9da..bc6a989 100644 --- a/gcc/cp/decl2.c +++ b/gcc/cp/decl2.c @@ -5204,18 +5204,23 @@ do_using_directive (namespace) { if (namespace == fake_std_node) return; + if (building_stmt_tree ()) + add_stmt (build_stmt (USING_STMT, namespace)); + /* using namespace A::B::C; */ if (TREE_CODE (namespace) == SCOPE_REF) namespace = TREE_OPERAND (namespace, 1); if (TREE_CODE (namespace) == IDENTIFIER_NODE) { /* Lookup in lexer did not find a namespace. */ - cp_error ("namespace `%T' undeclared", namespace); + if (!processing_template_decl) + cp_error ("namespace `%T' undeclared", namespace); return; } if (TREE_CODE (namespace) != NAMESPACE_DECL) { - cp_error ("`%T' is not a namespace", namespace); + if (!processing_template_decl) + cp_error ("`%T' is not a namespace", namespace); return; } namespace = ORIGINAL_NAMESPACE (namespace); diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c index 2a1dc44..c0cd2eb 100644 --- a/gcc/cp/pt.c +++ b/gcc/cp/pt.c @@ -6886,7 +6886,7 @@ tsubst_copy (t, args, complain, in_decl) case LOOKUP_EXPR: { - /* We must tsbust into a LOOKUP_EXPR in case the names to + /* We must tsubst into a LOOKUP_EXPR in case the names to which it refers is a conversion operator; in that case the name will change. We avoid making unnecessary copies, however. */ @@ -7211,6 +7211,12 @@ tsubst_expr (t, args, complain, in_decl) args, complain, in_decl)); break; + case USING_STMT: + prep_stmt (t); + do_using_directive (tsubst_expr (USING_STMT_NAMESPACE (t), + args, complain, in_decl)); + break; + case DECL_STMT: { tree decl; diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c index 5a42fd0..8b7e99b 100644 --- a/gcc/cp/semantics.c +++ b/gcc/cp/semantics.c @@ -2220,6 +2220,9 @@ cp_expand_stmt (t) genrtl_named_return_value (); break; + case USING_STMT: + break; + default: my_friendly_abort (19990810); break; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 12d5b6e..33106b4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2001-05-01 Nathan Sidwell + * g++.old-deja/g++.ns/template17.C: New test. + +2001-05-01 Nathan Sidwell + * g++.old-deja/g++.pt/ref4.C: New test. 2001-04-30 Richard Henderson diff --git a/gcc/testsuite/g++.old-deja/g++.ns/template17.C b/gcc/testsuite/g++.old-deja/g++.ns/template17.C new file mode 100644 index 0000000..11f21c9 --- /dev/null +++ b/gcc/testsuite/g++.old-deja/g++.ns/template17.C @@ -0,0 +1,37 @@ +// Build don't link: +// +// Copyright (C) 2001 Free Software Foundation, Inc. +// Contributed by Nathan Sidwell 29 Apr 2001 + +// Bug 2258. We failed to implement using directives inside template +// functions. This makes us regress now that ::std is real. + +namespace thing +{ + template T end2 (T); +} +namespace whatever +{ +} + +template void fn (T, T (*)(T)); + +template void mycout(const T& data) +{ + using namespace thing; + using namespace whatever; + + fn (data, end2); + fn (data, end3); +} + +namespace whatever +{ + template T end3 (T); +} + +int main() +{ + double data = 5.0; + mycout(data); +} -- 2.7.4