245 lines
7.4 KiB
C++
245 lines
7.4 KiB
C++
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/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* ChipComponentAccessAST.C
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*
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* Description: See ChipComponentAccessAST.hh
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*
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* $Id: ChipComponentAccessAST.C 1.9 04/06/18 21:00:08-00:00 beckmann@cottons.cs.wisc.edu $
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*
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*/
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#include "mem/slicc/ast/ChipComponentAccessAST.hh"
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ChipComponentAccessAST::ChipComponentAccessAST(VarExprAST* machine, ExprAST* mach_version, VarExprAST* component, string* proc_name, Vector<ExprAST*>* expr_vec_ptr)
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: ExprAST()
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{
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m_chip_ver_expr_ptr = NULL;
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m_mach_var_ptr = machine;
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m_comp_var_ptr = component;
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m_mach_ver_expr_ptr = mach_version;
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m_expr_vec_ptr = expr_vec_ptr;
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m_proc_name_ptr = proc_name;
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m_field_name_ptr = NULL;
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}
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ChipComponentAccessAST::ChipComponentAccessAST(VarExprAST* machine, ExprAST* mach_version, VarExprAST* component, string* field_name)
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: ExprAST()
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{
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m_chip_ver_expr_ptr = NULL;
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m_mach_var_ptr = machine;
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m_comp_var_ptr = component;
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m_mach_ver_expr_ptr = mach_version;
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m_expr_vec_ptr = NULL;
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m_proc_name_ptr = NULL;
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m_field_name_ptr = field_name;
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}
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ChipComponentAccessAST::ChipComponentAccessAST(ExprAST* chip_version, VarExprAST* machine, ExprAST* mach_version, VarExprAST* component, string* proc_name, Vector<ExprAST*>* expr_vec_ptr)
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: ExprAST()
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{
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m_chip_ver_expr_ptr = chip_version;
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m_mach_var_ptr = machine;
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m_comp_var_ptr = component;
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m_mach_ver_expr_ptr = mach_version;
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m_expr_vec_ptr = expr_vec_ptr;
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m_proc_name_ptr = proc_name;
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m_field_name_ptr = NULL;
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}
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ChipComponentAccessAST::ChipComponentAccessAST(ExprAST* chip_version, VarExprAST* machine, ExprAST* mach_version, VarExprAST* component, string* field_name)
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: ExprAST()
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{
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m_chip_ver_expr_ptr = chip_version;
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m_mach_var_ptr = machine;
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m_comp_var_ptr = component;
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m_mach_ver_expr_ptr = mach_version;
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m_expr_vec_ptr = NULL;
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m_proc_name_ptr = NULL;
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m_field_name_ptr = field_name;
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}
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ChipComponentAccessAST::~ChipComponentAccessAST()
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{
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if (m_expr_vec_ptr != NULL) {
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int size = m_expr_vec_ptr->size();
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for(int i=0; i<size; i++) {
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delete (*m_expr_vec_ptr)[i];
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}
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}
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delete m_mach_var_ptr;
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delete m_comp_var_ptr;
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delete m_mach_ver_expr_ptr;
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if (m_proc_name_ptr != NULL) {
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delete m_proc_name_ptr;
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}
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if (m_field_name_ptr != NULL) {
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delete m_field_name_ptr;
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}
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if (m_chip_ver_expr_ptr != NULL) {
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delete m_chip_ver_expr_ptr;
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}
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}
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Type* ChipComponentAccessAST::generate(string& code) const
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{
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Type* void_type_ptr = g_sym_table.getType("void");
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Type* ret_type_ptr;
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code += "(";
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Var* v = g_sym_table.getMachComponentVar(m_mach_var_ptr->getName(), m_comp_var_ptr->getName());
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string orig_code = v->getCode();
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string working_code;
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if (m_chip_ver_expr_ptr != NULL) {
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// replace m_chip_ptr with specified chip
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unsigned int t = orig_code.find("m_chip_ptr");
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assert(t != string::npos);
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string code_temp0 = orig_code.substr(0, t);
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string code_temp1 = orig_code.substr(t+10);
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working_code += code_temp0;
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working_code += "g_system_ptr->getChip(";
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m_chip_ver_expr_ptr->generate(working_code);
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working_code += ")";
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working_code += code_temp1;
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}
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else {
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working_code += orig_code;
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}
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// replace default "m_version" with the version we really want
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unsigned int tmp_uint = working_code.find("m_version");
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assert(tmp_uint != string::npos);
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string code_temp2 = working_code.substr(0, tmp_uint);
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string code_temp3 = working_code.substr(tmp_uint+9);
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code += code_temp2;
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code += "(";
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m_mach_ver_expr_ptr->generate(code);
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code += ")";
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code += code_temp3;
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code += ")";
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if (m_proc_name_ptr != NULL) {
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// method call
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code += ".";
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Vector <Type*> paramTypes;
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// generate code
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int actual_size = m_expr_vec_ptr->size();
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code += (*m_proc_name_ptr) + "(";
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for(int i=0; i<actual_size; i++) {
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if (i != 0) {
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code += ", ";
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}
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// Check the types of the parameter
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Type* actual_type_ptr = (*m_expr_vec_ptr)[i]->generate(code);
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paramTypes.insertAtBottom(actual_type_ptr);
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}
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code += ")";
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Type* obj_type_ptr = v->getType();
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string methodId = obj_type_ptr->methodId(*m_proc_name_ptr, paramTypes);
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// Verify that this is a method of the object
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if (!obj_type_ptr->methodExist(methodId)) {
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error("Invalid method call: Type '" + obj_type_ptr->toString() + "' does not have a method '" + methodId + "'");
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}
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int expected_size = obj_type_ptr->methodParamType(methodId).size();
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if (actual_size != expected_size) {
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// Right number of parameters
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ostringstream err;
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err << "Wrong number of parameters for function name: '" << *m_proc_name_ptr << "'";
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err << ", expected: ";
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err << expected_size;
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err << ", actual: ";
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err << actual_size;
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error(err.str());
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}
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for(int i=0; i<actual_size; i++) {
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// Check the types of the parameter
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Type* actual_type_ptr = paramTypes[i];
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Type* expected_type_ptr = obj_type_ptr->methodParamType(methodId)[i];
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if (actual_type_ptr != expected_type_ptr) {
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(*m_expr_vec_ptr)[i]->error("Type mismatch: expected: " + expected_type_ptr->toString() +
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" actual: " + actual_type_ptr->toString());
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}
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}
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// Return the return type of the method
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ret_type_ptr = obj_type_ptr->methodReturnType(methodId);
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}
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else if (m_field_name_ptr != NULL) {
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Type* obj_type_ptr = v->getType();
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code += ").m_" + (*m_field_name_ptr);
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// Verify that this is a valid field name for this type
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if (!obj_type_ptr->dataMemberExist(*m_field_name_ptr)) {
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error("Invalid object field: Type '" + obj_type_ptr->toString() + "' does not have data member " + *m_field_name_ptr);
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}
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// Return the type of the field
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ret_type_ptr = obj_type_ptr->dataMemberType(*m_field_name_ptr);
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}
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else {
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assert(0);
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}
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return ret_type_ptr;
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}
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void ChipComponentAccessAST::findResources(Map<Var*, string>& resource_list) const
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{
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}
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void ChipComponentAccessAST::print(ostream& out) const
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{
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out << "[ChipAccessExpr: " << *m_expr_vec_ptr << "]";
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}
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