astgen.h

#include<vector>
#include<string>
#ifndef ASTGEN_H
#define ASTGEN_H

struct AstElement
{
	//this enum provides reference lookup for array search in astexec.cpp
    enum {ekId, ekNumber, ekBinExpression, ekAssignment, ekWhile, ekFunc, ekSignatures, ekSignature, ekCall, ekStatements, ekIf, ekElseIf, ekArray, ekVector, ekVectors, ekVector2d, ekVec1delement, ekVec2delement, ekVecAssignment, ekVec2dAssignment, ekRtrnByExp, ekFuncAssign, ekPow, ekFact, ekAcos, ekSqrt, ekRotatez, ekMagnitudesqr, ekTransform, ekMin, ekDot, ekCross, ekLastElement} kind;
    struct
    {
        double val; //only one value... arrays implementation as a struct refer below
        char* name; 
        struct
        {
            struct AstElement *left, *right;
            char* op;
        }expression;
		//create a left node here to hold data type as int or double
        struct
        {
            char*name;
            struct AstElement* right;
        }assignment;
        struct
        {
            int count;
            //struct AstElement** statements;
			std::vector<struct AstElement*>statements;
        }statements;
        struct
        {
            struct AstElement* cond;
            struct AstElement* statements;
        } whileStmt;
		struct 
		{
			struct AstElement* cond;
			struct AstElement* ifTrue;
			struct AstElement* ifFalse;
		}ifStatement;
		struct 
		{
			struct AstElement* ifcond;
			struct AstElement* ifTrue;
			struct AstElement* elseifCond;
			struct AstElement* elseifCondTrue;
			struct AstElement* elseifCondFalse;
		}elseifStatement;
        struct
        {
            char* name;
            struct AstElement* param;
        }call;
		
		struct
		{
			int count;
			char* name;
			struct AstElement* signatures;
			struct AstElement* statements;
		}func;
		struct
		{
			int count;
			std::vector<struct AstElement*>signature;
		}signatures;
		//represent one signature e.g. int ab
		struct
		{
			char* type;
			struct AstElement* assignment;
		}signature;
		struct
		{
			int count;
			std::vector<struct AstElement *>element;
		}array;
		struct
		{
			char* name;
			struct AstElement* array;
		}vector;
		struct
		{
			char* name;
			int count;
			std::vector<struct AstElement*>vector;
		}vectors;
		struct
		{
			char* name;
			struct AstElement* vectors;
		}vector2d;
		struct
		{
			char* name;
			int elementPos;
		}Vec1delement;
		struct
		{
			char* name;
			int elementPos1;
			int elementPos2;
		}Vec2delement;
		struct
		{
			char* name;
			int elementPos1;
			struct AstElement* right;
		}VecAssignment;
		struct
		{
			char* name;
			int elementPos1;
			int elementPos2;
			struct AstElement* right;
		}Vec2dAssignment;
		struct
		{
			char* op;
			struct AstElement* exp;
		}returnData;
		struct
		{
			struct AstElement* right;
			struct AstElement* left;
		}pow;
		struct
		{
			struct AstElement* expr;
		}fact;
		struct
		{
			struct AstElement* expr;
		}Acos;
		struct
		{
			struct AstElement* expr;
		}Sqrt;
		struct
		{
			struct AstElement* angle;
			struct AstElement* coords;
		}rotatez;
		struct
		{
			struct AstElement* expr;
		}magnitudeSqr;
		struct
		{
			struct AstElement* expr;
		}transform;
		struct
		{
			struct AstElement* first;
			struct AstElement* second;
			struct AstElement* third;
		}min;
		struct
		{
			struct AstElement* left;
			struct AstElement* right;
		}dot;
		struct
		{
			struct AstElement* first;
			struct AstElement* second;
		}cross;
    } data;
};

struct AstElement* makeAssignment(char*name, struct AstElement* val);
struct AstElement* makeAssignment(char*name);
struct AstElement* makeExpByNum(double val);
struct AstElement* makeExpByName(char*name);
struct AstElement* makeExp(struct AstElement* left, struct AstElement* right, char* op);
struct AstElement* makeStatement(struct AstElement* dest, struct AstElement* toAppend);
struct AstElement* makeWhile(struct AstElement* cond, struct AstElement* exec);
struct AstElement* makeCall(char* name, struct AstElement* param);
struct AstElement* makeIf(struct AstElement* cond, struct AstElement* ifTrue);
struct AstElement* makeIf(struct AstElement* cond, struct AstElement* ifTrue, struct AstElement* ifFalse);
struct AstElement* makeElseIf(struct AstElement* condIf, struct AstElement* ifTrue, struct AstElement* condElseIf, struct AstElement* elseIfTrue, struct AstElement* elseIfFalse);
struct AstElement* makeFunc(char* name, struct AstElement* signature, struct AstElement* statement);
struct AstElement* makeFunc(char* name, struct AstElement* statement);
struct AstElement* makeSignatures(struct AstElement* result,struct AstElement* signature);
struct AstElement* makeSignatures();
struct AstElement* makeSignature(char* type,struct AstElement* assignment);
struct AstElement* makeArray(struct AstElement* result, struct AstElement* expression);
struct AstElement* makeVector(char* name, struct AstElement* vector);
struct AstElement* makeNullVector(char* name);
struct AstElement* makeVector2d(char* name, struct AstElement* vectors);
struct AstElement* makeNullVectors();
struct AstElement* makeVectors(struct AstElement* result, struct AstElement* array);
struct AstElement* makeVec1delement(char* name,int elementPos);
struct AstElement* makeVec2delement(char* name, int elementPos1, int elementPos2);
struct AstElement* makeVecAssignment(char* name, int elementPos, struct AstElement* right);
struct AstElement* makeVec2dAssignment(char* name, int elementPos1, int elementPos2, struct AstElement* right);
struct AstElement* makeReturnByExp(struct AstElement* exp);
struct AstElement* makeFuncAssignment( char*name, struct AstElement* val);
struct AstElement* makePow( struct AstElement* left, struct AstElement* right);
struct AstElement* makeMin( struct AstElement* first, struct AstElement* second,struct AstElement* third);
struct AstElement* makeFact( struct AstElement* expr);
struct AstElement* makeAcos( struct AstElement* expr);
struct AstElement* makeSqrt( struct AstElement* expr);
struct AstElement* makeRotatez( struct AstElement* angle, struct AstElement* coords);
struct AstElement* makeMagnitudesqr( struct AstElement* expr);
struct AstElement* makeTransform( struct AstElement* expr);
struct AstElement* makeDot( struct AstElement* left,struct AstElement* right);
struct AstElement* makeCross( struct AstElement* first,struct AstElement* second);
#endif