diff options
Diffstat (limited to 'trunk/TAO/TAO_IDL/be/be_visitor_field/field_ch.cpp')
-rw-r--r-- | trunk/TAO/TAO_IDL/be/be_visitor_field/field_ch.cpp | 568 |
1 files changed, 568 insertions, 0 deletions
diff --git a/trunk/TAO/TAO_IDL/be/be_visitor_field/field_ch.cpp b/trunk/TAO/TAO_IDL/be/be_visitor_field/field_ch.cpp new file mode 100644 index 00000000000..ea9cec530ae --- /dev/null +++ b/trunk/TAO/TAO_IDL/be/be_visitor_field/field_ch.cpp @@ -0,0 +1,568 @@ +// +// $Id$ +// + +// ============================================================================ +// +// = LIBRARY +// TAO IDL +// +// = FILENAME +// field_ch.cpp +// +// = DESCRIPTION +// Visitor generating code for Field node in the client header +// +// = AUTHOR +// Aniruddha Gokhale +// +// ============================================================================ + +#include "be_visitor_enum/enum_ch.h" +#include "be_visitor_sequence/sequence_ch.h" +#include "nr_extern.h" + +ACE_RCSID (be_visitor_field, + field_ch, + "$Id$") + +// ********************************************** +// Visitor for field in the client header file. +// ********************************************** + +be_visitor_field_ch::be_visitor_field_ch (be_visitor_context *ctx) + : be_visitor_decl (ctx) +{ +} + +be_visitor_field_ch::~be_visitor_field_ch (void) +{ +} + +int +be_visitor_field_ch::visit_field (be_field *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt = be_type::narrow_from_decl (node->field_type ()); + + if (!bt) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_field - " + "Bad field type\n"), + -1); + } + + this->ctx_->node (node); + + *os << be_nl; + + if (bt->accept (this) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_field - " + "codegen for field type failed\n"), + -1); + } + + // Now output the field name. + *os << " " << node->local_name () << ";"; + + return 0; +} + +// Visit operations on all possible data types that a field can be. + +int +be_visitor_field_ch::visit_array (be_array *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + // If not a typedef and we are defined in the use scope, we must be defined. + if (!this->ctx_->alias () + && node->is_child (this->ctx_->scope ())) + { + // This is the case for anonymous arrays. + + // Instantiate a visitor context with a copy of our context. This info + // will be modified based on what type of node we are visiting + be_visitor_context ctx (*this->ctx_); + ctx.node (node); // set the node to be the node being visited. The scope + // is still the same + + // First generate the array declaration + ctx.state (TAO_CodeGen::TAO_ARRAY_CH); + be_visitor_array_ch visitor (&ctx); + + if (node->accept (&visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_array - " + "codegen failed\n"), + -1); + } + + ctx.state (TAO_CodeGen::TAO_ROOT_CH); + + // Having defined all array type and its supporting operations, now + // generate the actual variable that is a field of the structure. + *os << be_nl << be_nl << "_" << bt->local_name (); + } + else + { + // This was a typedefed array. + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module) + { + *os << bt->nested_type_name (this->ctx_->scope ()); + } + else + { + *os << bt->name (); + } + } + + return 0; +} + +int +be_visitor_field_ch::visit_enum (be_enum *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + // If not a typedef and we are defined in the use scope, we must be defined. + if (!this->ctx_->alias () // not a typedef + && node->is_child (this->ctx_->scope ())) + { + // Instantiate a visitor context with a copy of our context. This info + // will be modified based on what type of node we are visiting. + be_visitor_context ctx (*this->ctx_); + ctx.node (node); + + // First generate the enum declaration. + be_visitor_enum_ch visitor (&ctx); + + if (node->accept (&visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_enum - " + "codegen failed\n"), + -1); + } + } + + // This was a typedefed array. + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module) + { + *os << bt->nested_type_name (this->ctx_->scope ()); + } + else + { + *os << bt->name (); + } + + return 0; +} + +int +be_visitor_field_ch::visit_interface (be_interface *node) +{ + return this->emit_common (node); +} + +int +be_visitor_field_ch::visit_interface_fwd (be_interface_fwd *node) +{ + return this->emit_common (node); +} + +int +be_visitor_field_ch::visit_valuebox (be_valuebox *node) +{ + return this->emit_common (node); +} + +int +be_visitor_field_ch::visit_valuetype (be_valuetype *node) +{ + return this->emit_common (node); +} + +int +be_visitor_field_ch::visit_valuetype_fwd (be_valuetype_fwd *node) +{ + return this->emit_common (node); +} + + +int +be_visitor_field_ch::emit_common (be_type *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module) + { + *os << bt->nested_type_name (this->ctx_->scope (), "_var"); + } + else + { + *os << bt->name () << "_var"; + } + + return 0; +} + +int +be_visitor_field_ch::visit_predefined_type (be_predefined_type *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + be_typedef *td = this->ctx_->alias (); + + if (td != 0) + { + bt = td; + } + else + { + bt = node; + } + + *os << bt->nested_type_name (this->ctx_->scope ()); + + switch (node->pt ()) + { + case AST_PredefinedType::PT_object: + case AST_PredefinedType::PT_abstract: + case AST_PredefinedType::PT_pseudo: + *os << "_var"; + break; + case AST_PredefinedType::PT_value: + *os << " *"; + break; + default: + break; + } + + return 0; +} + +int +be_visitor_field_ch::visit_sequence (be_sequence *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + if (!this->ctx_->alias () + && node->is_child (this->ctx_->scope ())) + { + // Put the field node into the (anonymous) sequence node, to be + // used later for unique name generation. + be_field *member_node = + be_field::narrow_from_decl (this->ctx_->node ()); + node->field_node (member_node); + + be_visitor_context ctx (*this->ctx_); + ctx.node (node); + + // First generate the sequence declaration. + be_visitor_sequence_ch visitor (&ctx); + + if (node->accept (&visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_sequence - " + "codegen failed\n"), + -1); + } + + // If we are being reused by valutype, this would get generated + // in the private section of the OBV_xx class, so we must + // generate the typedef for that case elsewhere. + AST_Decl::NodeType snt = this->ctx_->scope ()->node_type (); + + if (snt != AST_Decl::NT_valuetype && snt != AST_Decl::NT_eventtype) + { + // Generate the anonymous sequence member typedef. + be_decl *bs = this->ctx_->scope (); + + *os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl + << "// " << __FILE__ << ":" << __LINE__ << be_nl << be_nl; + + *os << "typedef " << bt->nested_type_name (bs) + << " _" << this->ctx_->node ()->local_name () + << "_seq;" << be_nl; + } + } + + // ACE_NESTED_CLASS macro generated by nested_type_name + // is not necessary in all cases. + be_typedef *tdef = be_typedef::narrow_from_decl (bt); + + // This was a typedefed array. + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module + || !tdef) + { + *os << bt->nested_type_name (this->ctx_->scope ()); + } + else + { + *os << bt->name (); + } + + return 0; +} + +int +be_visitor_field_ch::visit_string (be_string *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + + if (node->width () == (long) sizeof (char)) + { + *os << "TAO::String_Manager"; + } + else + { + *os << "TAO::WString_Manager"; + } + + return 0; +} + +int +be_visitor_field_ch::visit_structure (be_structure *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + if (!this->ctx_->alias () // not a typedef + && node->is_child (this->ctx_->scope ())) + { + be_visitor_context ctx (*this->ctx_); + ctx.node (node); + + be_visitor_structure_ch visitor (&ctx); + + if (node->accept (&visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_struct - " + "codegen failed\n"), + -1); + } + } + + // This was a typedefed array. + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module) + { + *os << bt->nested_type_name (this->ctx_->scope ()); + } + else + { + *os << bt->name (); + } + + return 0; +} + +// Visit typedefed type. +int +be_visitor_field_ch::visit_typedef (be_typedef *node) +{ + this->ctx_->alias (node); + + // Make a decision based on the primitive base type. + be_type *bt = node->primitive_base_type (); + + if (!bt || (bt->accept (this) == -1)) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_typedef - " + "Bad primitive type\n"), + -1); + } + + // Reset the alias. + this->ctx_->alias (0); + return 0; +} + +// visit union type +int +be_visitor_field_ch::visit_union (be_union *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + be_type *bt; + + if (this->ctx_->alias ()) + { + bt = this->ctx_->alias (); + } + else + { + bt = node; + } + + if (!this->ctx_->alias () + && node->is_child (this->ctx_->scope ())) + { + be_visitor_context ctx (*this->ctx_); + ctx.node (node); + + be_visitor_union_ch visitor (&ctx); + + if (node->accept (&visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_field_ch::" + "visit_union - " + "codegen failed\n"), + -1); + } + } + + *os << be_nl << be_nl; + + // This was a typedefed array. + // ACE_NESTED_CLASS macro generated by nested_type_name + // is necessary if the struct, union, or valuetype containing this + // field was not defined inside a module. In such a case, VC++ + // complains that the non-module scope is not yet fully defined. + UTL_Scope *holds_container = this->ctx_->scope ()->defined_in (); + AST_Decl *hc_decl = ScopeAsDecl (holds_container); + + if (hc_decl->node_type () != AST_Decl::NT_module) + { + *os << bt->nested_type_name (this->ctx_->scope ()); + } + else + { + *os << bt->name (); + } + + return 0; +} + +int +be_visitor_field_ch::visit_component ( + be_component *node + ) +{ + return this->visit_interface (node); +} + +int +be_visitor_field_ch::visit_component_fwd ( + be_component_fwd *node + ) +{ + return this->visit_interface_fwd (node); +} + +int +be_visitor_field_ch::visit_eventtype ( + be_eventtype *node + ) +{ + return this->visit_valuetype (node); +} + +int +be_visitor_field_ch::visit_eventtype_fwd ( + be_eventtype_fwd *node + ) +{ + return this->visit_valuetype_fwd (node); +} + + |