jimple_expr Class Reference

Base interface to hold jimple expressions. More...

#include <jimple_expr.h>

Inheritance diagram for jimple_expr:

Public Member Functions
virtual exprt	to_exprt (contextt &, const std::string &, const std::string &) const
virtual expr2tc	to_expr2t (contextt &ctx, const std::string &class_name, const std::string &function_name) const
	The IREP2 form of this expression.
Public Member Functions inherited from jimple_ast
void	dump () const
	Prints the contents into the the stdout.
virtual void	from_json (const json &)=0
	Initializes the current instance by parsing a JSON.
virtual std::string	to_string () const =0
	Converts the object into a string.

Static Public Member Functions
static std::shared_ptr< jimple_expr >	get_expression (const json &j)
	Recursively explores and initializes a jimple_expression.

Static Protected Member Functions
static expr2tc	lower_invoke2t (contextt &ctx, const std::string &base_class, const std::string &method, const std::string &this_variable, const std::vector< std::shared_ptr< jimple_expr > > &parameters, const expr2tc &lhs, const std::string &class_name, const std::string &function_name)
	Lower an invoke to the block both invoke forms produce.
Static Protected Member Functions inherited from jimple_ast
static symbolt	create_jimple_symbolt (const type2tc &t, const std::string &module, const std::string &name, const std::string &id, const std::string function_name="")
	creates a symbol with the default characteristics
static symbolt	get_temp_symbol (const type2tc &t, const std::string &class_name, const std::string &function_name)
	Create a temporary variable to be used.
static symbolt	get_allocation_function ()
	Get the allocation function symbol.
static symbolt	get_lengthof_function ()
	Get the esbmc_get_object_size symbol.
static std::string	get_method_name (std::string class_name, std::string function_name)
	Get the unique method name.
static std::string	get_symbol_name (std::string class_name, std::string function_name, std::string symbol)
	Get the symbol name id.
static locationt	get_location (const std::string &module, const std::string function_name="")
	initialize a location for the symbol

Additional Inherited Members
Public Attributes inherited from jimple_ast
int	line_location = -1
	instruction location

Detailed Description

Base interface to hold jimple expressions.

Member Function Documentation

get_expression()

std::shared_ptr< jimple_expr > jimple_expr::get_expression ( const json & j )

static

Recursively explores and initializes a jimple_expression.

Jimple expressions can be unary (e.g. cast) or binary (e.g. addition), however, the operands can be other expressions. For example, it is valid to do a cast over a math operation: (int) 1 + 1 in Jimple, this should be parsed as:

• cast:
  • to: int
  • from:
    • binop: +
      • op1: 1
      • op2: 1

This function will do that

Parameters

j

Returns

std::shared_ptr<jimple_expr>

lower_invoke2t()

expr2tc jimple_expr::lower_invoke2t ( contextt & ctx, const std::string & base_class, const std::string & method, const std::string & this_variable, const std::vector< std::shared_ptr< jimple_expr > > & parameters, const expr2tc & lhs, const std::string & class_name, const std::string & function_name )

staticprotected

Lower an invoke to the block both invoke forms produce.

One assignment per bound argument into the callee's own @this/@parameterN symbol – the frontend's stand-in for the parameter binding that belongs at symex – followed by the call. this_variable is empty for a static invoke, and lhs is nil when the result is discarded.

to_expr2t()

virtual expr2tc jimple_expr::to_expr2t ( contextt & ctx, const std::string & class_name, const std::string & function_name ) const

inlinevirtual

The IREP2 form of this expression.

The expression counterpart of jimple_method_field::to_code2t (K.4 of docs/roadmap/scope-jimple-irep2.md). A return type belongs to a virtual's signature, so the 27 to_exprt overrides cannot migrate one at a time; a parallel method can, with this default carrying whatever has not moved yet and shrinking as each override lands.

Reimplemented in jimple_binop, jimple_cast, jimple_constant, jimple_deref, jimple_expr_invoke, jimple_lengthof, jimple_newarray, jimple_nondet, jimple_static_member, jimple_symbol, jimple_virtual_invoke, and jimple_virtual_member.

to_exprt()

virtual exprt jimple_expr::to_exprt ( contextt & , const std::string & , const std::string &  ) const

inlinevirtual

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The documentation for this class was generated from the following files:

• src/jimple-frontend/AST/jimple_expr.h
• src/jimple-frontend/AST/jimple_expr.cpp