130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
// Filename: wrapperBuilder.h
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// Created by: drose (01Aug00)
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//
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////////////////////////////////////////////////////////////////////
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#ifndef WRAPPERBUILDER_H
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#define WRAPPERBUILDER_H
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#include <dtoolbase.h>
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#include <interrogate_interface.h>
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#include <vector_string.h>
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#include <vector>
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class CPPInstance;
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class CPPScope;
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class CPPStructType;
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class CPPType;
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class CPPFunctionType;
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class ParameterRemap;
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////////////////////////////////////////////////////////////////////
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// Class : WrapperBuilder
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// Description : Contains all the information necessary to synthesize
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// a wrapper around a particular function. This
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// includes choosing appropriate parameter types to
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// remap from the C++ function's parameter types, as
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// well as actually generating wrapper code.
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//
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// This is an abstract class; it doesn't actually know
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// how to choose parameter types and synthesize
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// wrappers; see WrapperBuilderC and
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// WrapperBuilderPython.
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////////////////////////////////////////////////////////////////////
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class WrapperBuilder {
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public:
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enum Type {
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T_normal,
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T_constructor,
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T_destructor,
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T_typecast_method,
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T_assignment_method,
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T_typecast,
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T_getter,
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T_setter
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};
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WrapperBuilder();
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virtual ~WrapperBuilder();
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void clear();
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bool set_function(CPPInstance *function, const string &description,
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CPPStructType *struct_type, CPPScope *scope,
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const string &function_signature, Type type,
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const string &expression,
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int num_default_parameters);
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bool is_valid() const;
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bool return_value_needs_management() const;
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FunctionIndex get_return_value_destructor() const;
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virtual void
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write_wrapper(ostream &out, const string &wrapper_name) const=0;
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virtual string
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get_wrapper_name(const string &library_hash_name) const=0;
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virtual bool supports_atomic_strings() const=0;
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enum CallingConvention {
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CC_c,
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CC_python,
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};
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virtual CallingConvention get_calling_convention() const=0;
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class Parameter {
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public:
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bool _has_name;
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string _name;
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ParameterRemap *_remap;
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};
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typedef vector<Parameter> Parameters;
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Parameters _parameters;
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ParameterRemap *_return_type;
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bool _void_return;
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bool _has_this;
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Type _type;
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CPPInstance *_function;
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string _description;
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CPPStructType *_struct_type;
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CPPScope *_scope;
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CPPFunctionType *_ftype;
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string _function_signature;
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string _expression;
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int _num_default_parameters;
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string _hash;
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int _wrapper_index;
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protected:
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virtual ParameterRemap *make_remap(CPPType *orig_type);
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string manage_return_value(ostream &out, int indent_level,
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const string &return_expr) const;
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void output_ref(ostream &out, int indent_level, const string &varname) const;
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string get_parameter_name(int n) const;
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string get_parameter_expr(int n, const vector_string &pexprs) const;
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string get_call_str(const vector_string &pexprs = vector_string()) const;
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string call_function(ostream &out, int indent_level,
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bool convert_result = true,
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const vector_string &pexprs = vector_string()) const;
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void write_spam_message(ostream &out) const;
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void write_quoted_string(ostream &out, const string &str) const;
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bool _is_valid;
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bool _return_value_needs_management;
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FunctionIndex _return_value_destructor;
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bool _manage_reference_count;
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public:
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static ostream &indent(ostream &out, int indent_level);
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};
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#endif
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