ValueStack Class Reference

#include <vm.h>

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Detailed Description

stack for Value objects

Note:

also called vmStack in Vm terminology

Definition at line 264 of file vm.h.

Public Member Functions
	ValueStack (Vm *vm)
	related virtual machine
	~ValueStack ()
bool	isEmpty () const
	true if stack is empty
void	push (PValue)
	push Value object to stack
PValue	pop ()
	pop Value object from stack, or NULL if stack is empty
bool	push (PValue, const Token &)
bool	pushFromVar (const Var &, const Token &)
bool	pop (PValue &, const Token &)
bool	popToVar (Var &, const Token &)
Private Attributes
Private *	d
Classes
struct	Private

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Constructor & Destructor Documentation

ValueStack

(

Vm *

vm

)

related virtual machine

Definition at line 130 of file vm.cc.

~ValueStack

(

)

Definition at line 134 of file vm.cc.

References d.

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Member Function Documentation

bool isEmpty

(

)

const

true if stack is empty

Definition at line 137 of file vm.cc.

References d, and ValueStack::Private::st.

Referenced by pop(), and VmRunner::Private::run().

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void push

(

PValue

val

)

push Value object to stack

Definition at line 141 of file vm.cc.

References StreamDecorator::C_LIGHT_PURPLE, StreamDecorator::C_NO_COLOR, d, and ValueStack::Private::st.

Referenced by InputCmd::exec(), BinaryCmd::exec(), UnaryCmd::exec(), PushValueCmd::exec(), push(), and pushFromVar().

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PValue pop

(

)

pop Value object from stack, or NULL if stack is empty

Definition at line 149 of file vm.cc.

References StreamDecorator::C_LIGHT_PURPLE, StreamDecorator::C_NO_COLOR, d, and ValueStack::Private::st.

Referenced by WhileCmd::exec(), IfCmd::exec(), BinaryCmd::exec(), UnaryCmd::exec(), pop(), and popToVar().

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bool push	(	PValue	val,
		const Token &	t
	)

high-level push

Note:

may print Token-related error messages

Returns:

Return true on success

Definition at line 162 of file vm.cc.

References d, StreamDecorator::E_ERROR, Vm::fileName, push(), Value::type, Value::V_NULL, ValueStack::Private::vm, and Vm::vmStack.

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bool pushFromVar	(	const Var &	var,
		const Token &	t
	)

high-level push from variable check if variable is initialized, etc.

Note:

may print Token-related error messages

Returns:

Return true on success

Definition at line 172 of file vm.cc.

References d, Var::defined, StreamDecorator::E_ERROR, StreamDecorator::E_NOTE, Vm::fileName, Var::initialized, push(), Var::value, and ValueStack::Private::vm.

Referenced by CallCmd::exec(), ArgCmd::exec(), LcVarCmd::exec(), GlVarCmd::exec(), and ReturnCmd::exec().

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bool pop	(	PValue &	val,
		const Token &	t
	)

high-level pop

Note:

may print Token-related error messages

Returns:

Return true on success

Definition at line 183 of file vm.cc.

References d, StreamDecorator::E_ERROR, Vm::fileName, isEmpty(), pop(), ValueStack::Private::vm, and Vm::vmStack.

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bool popToVar	(	Var &	var,
		const Token &	t
	)

high-level pop to variable mark variable as initialized, etc.

Note:

may print Token-related error messages

Returns:

Return true on success

Definition at line 194 of file vm.cc.

References d, StreamDecorator::E_ERROR, StreamDecorator::E_NOTE, Vm::fileName, Var::initialized, pop(), Value::type, Var::value, and ValueStack::Private::vm.

Referenced by CallCmd::exec(), PrintCmd::exec(), ArgCmd::exec(), LcVarCmd::exec(), GlVarCmd::exec(), and ReturnCmd::exec().

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Member Data Documentation

Private* d [private]

Definition at line 304 of file vm.h.

Referenced by isEmpty(), pop(), popToVar(), push(), pushFromVar(), and ~ValueStack().

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

• vm.h
• vm.cc

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