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// Copyright (C) 2020-2023 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include "rust-compile-fnparam.h"
#include "rust-compile-pattern.h"
#include "gimple-expr.h"
namespace Rust {
namespace Compile {
CompileFnParam::CompileFnParam (Context *ctx, tree fndecl, tree decl_type,
Location locus)
: HIRCompileBase (ctx), fndecl (fndecl), decl_type (decl_type), locus (locus),
compiled_param (ctx->get_backend ()->error_variable ())
{}
Bvariable *
CompileFnParam::compile (Context *ctx, tree fndecl, HIR::FunctionParam *param,
tree decl_type, Location locus)
{
CompileFnParam compiler (ctx, fndecl, decl_type, locus);
param->get_param_name ()->accept_vis (compiler);
return compiler.compiled_param;
}
Bvariable *
CompileFnParam::compile (Context *ctx, tree fndecl, HIR::Pattern *param,
tree decl_type, Location locus)
{
CompileFnParam compiler (ctx, fndecl, decl_type, locus);
param->accept_vis (compiler);
return compiler.compiled_param;
}
void
CompileFnParam::visit (HIR::IdentifierPattern &pattern)
{
if (!pattern.is_mut ())
decl_type = ctx->get_backend ()->immutable_type (decl_type);
compiled_param
= ctx->get_backend ()->parameter_variable (fndecl,
pattern.get_identifier (),
decl_type, locus);
}
void
CompileFnParam::visit (HIR::WildcardPattern &pattern)
{
decl_type = ctx->get_backend ()->immutable_type (decl_type);
compiled_param
= ctx->get_backend ()->parameter_variable (fndecl, "_", decl_type, locus);
}
void
CompileFnParam::visit (HIR::StructPattern &pattern)
{
// generate the anon param
tree tmp_ident = create_tmp_var_name ("RSTPRM");
std::string cpp_str_identifier = std::string (IDENTIFIER_POINTER (tmp_ident));
decl_type = ctx->get_backend ()->immutable_type (decl_type);
compiled_param
= ctx->get_backend ()->parameter_variable (fndecl, cpp_str_identifier,
decl_type, locus);
// setup the pattern bindings
tree anon_param = ctx->get_backend ()->var_expression (compiled_param, locus);
CompilePatternBindings::Compile (&pattern, anon_param, ctx);
}
void
CompileFnParam::visit (HIR::TupleStructPattern &pattern)
{
// generate the anon param
tree tmp_ident = create_tmp_var_name ("RSTPRM");
std::string cpp_str_identifier = std::string (IDENTIFIER_POINTER (tmp_ident));
decl_type = ctx->get_backend ()->immutable_type (decl_type);
compiled_param
= ctx->get_backend ()->parameter_variable (fndecl, cpp_str_identifier,
decl_type, locus);
// setup the pattern bindings
tree anon_param = ctx->get_backend ()->var_expression (compiled_param, locus);
CompilePatternBindings::Compile (&pattern, anon_param, ctx);
}
Bvariable *
CompileSelfParam::compile (Context *ctx, tree fndecl, HIR::SelfParam &self,
tree decl_type, Location locus)
{
bool is_immutable
= self.get_self_kind () == HIR::SelfParam::ImplicitSelfKind::IMM
|| self.get_self_kind () == HIR::SelfParam::ImplicitSelfKind::IMM_REF;
if (is_immutable)
decl_type = ctx->get_backend ()->immutable_type (decl_type);
return ctx->get_backend ()->parameter_variable (fndecl, "self", decl_type,
locus);
}
} // namespace Compile
} // namespace Rust
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