Interface of the block diagram evaluator. More...

#include "boxes.hh"
#include "sourcereader.hh"
#include "environment.hh"

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Functions
Tree	evalprocess (Tree eqlist)
	Eval the definition of 'process'.
Tree	evaldocexpr (Tree docexpr, Tree eqlist)
Tree	pushValueDef (Tree id, Tree def, Tree lenv)
	Push a new layer and add a single definition.
Tree	simplifyPattern (Tree pattern)
	Simplify a block-diagram pattern by computing its numerical sub-expressions.

Detailed Description

Interface of the block diagram evaluator.

A strict lambda-calculus evaluator for block diagram expressions.

Definition in file eval.hh.

Function Documentation

Tree evaldocexpr	(	Tree	docexpr,
		Tree	eqlist
	)

Definition at line 115 of file eval.cpp.

References a2sb(), eval(), nil, and pushMultiClosureDefs().

Referenced by mapEvalDocEqn(), and printDocDgm().

{
    return a2sb(eval(docexpr, nil, pushMultiClosureDefs(eqlist, nil, nil)));
}

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Tree evalprocess ( Tree eqlist )

Eval the definition of 'process'.

Eval the definition of 'process' in the environment passed as argument

Parameters:

eqlist the global environment (a list of definitions)

Returns:: the 'process' block diagram in normal form that is

Eval the definition of 'process'.

Strict evaluation of a block diagram expression by applying beta reduction.

Parameters:

eqlist a list of faust defintions forming the the global environment

Returns:: the process block diagram in normal form

Definition at line 101 of file eval.cpp.

References a2sb(), boxIdent(), boxSimplification(), eval(), gSimplifyDiagrams, nil, and pushMultiClosureDefs().

Referenced by main().

{
    Tree b = a2sb(eval(boxIdent("process"), nil, pushMultiClosureDefs(eqlist, nil, nil)));

    if (gSimplifyDiagrams) {
        b = boxSimplification(b);
    }

    return b;
}

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Tree pushValueDef	(	Tree	id,
		Tree	def,
		Tree	lenv
	)

Push a new layer and add a single definition.

Parameters:

id	the symbol id to be defined
def	the definition to be binded to the symbol id
lenv	the environment where to push the layer and add the definition

Returns:: the new environment

Definition at line 94 of file environment.cpp.

{
    Tree lenv2 = pushNewLayer(lenv);
    addLayerDef(id, def, lenv2);
    return lenv2;
}

Tree simplifyPattern ( Tree value )

Simplify a block-diagram pattern by computing its numerical sub-expressions.

Parameters:

pattern an evaluated block-diagram

Returns:: a simplified pattern

Definition at line 591 of file eval.cpp.

{
    Tree num;
    if (!getNumericProperty(value,num)) {
        if (!isBoxNumeric(value,num)) {
            num = value;
        }
        setNumericProperty(value,num);
    }
    return num;
}

Functions

Detailed Description

Function Documentation