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AbstractSyntaxTree.c
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AbstractSyntaxTree.c
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// Ernesto Vaz de Oliveira - 00302470
// Ricco Vasconcellos Constante Soares - 00307968
#include "AbstractSyntaxTree.h"
#include <stdlib.h>
#include <string.h>
char* _nodeTypeName(SyntaxNodeType type) {
switch(type) {
case ParenthesesNode:
return "PARENTHESES";
case AddNode:
return "ADD";
case SubNode:
return "SUB";
case ProdNode:
return "PROD";
case DivNode:
return "DIVISION";
case NegationNode:
return "NEGATION";
case LessNode:
return "LESS THAN";
case GreaterNode:
return "GREATER THAN";
case AndNode:
return "AND";
case OrNode:
return "OR";
case LessEqualNode:
return "LESS THAN OR EQUAL";
case GreaterEqualNode:
return "GREATER THAN OR EQUAL";
case EqualNode:
return "EQUAL";
case DifferentNode:
return "DIFFERENT";
case SymbolNode:
return "SYMBOL";
case VariableNode:
return "VARIABLE";
case VariableDefNode:
return "VARIABLE DEFINITION";
case ArrayDefNode:
return "ARRAY DEFINITION";
case ArrayNode:
return "ARRAY";
case FunctionNode:
return "FUNCTION";
case ExpressionListNode:
return "EXPRESSION LIST ELEMENT";
case AssignmentNode:
return "ASSIGNMENT";
case ReadNode:
return "READ";
case ReturnNode:
return "RETURN";
case PrintNode:
return "PRINT";
case PrintListNode:
return "PRINT LIST ELEMENT";
case IfNode:
return "IF";
case IfElseNode:
return "IF ELSE";
case WhileNode:
return "WHILE";
case CommandBlockNode:
return "COMMAND BLOCK";
case CommandListNode:
return "COMMAND LIST";
case LiteralListNode:
return "LITERAL LIST ELEMENT";
case IntTypeNode:
return "INT TYPE";
case CharTypeNode:
return "CHAR TYPE";
case FloatTypeNode:
return "FLOAT TYPE";
case DefinitionListNode:
return "DEFINITION LIST ELEMENT";
case FunctionDefNode:
return "FUNCTION DEFINITION";
case ParameterListNode:
return "PARAMETER LIST ELEMENT";
default:
break;
}
return "ERROR";
}
SyntaxTreeNode* createAST(SyntaxNodeType type, Symbol* symbol,
SyntaxTreeNode* c1, SyntaxTreeNode* c2, SyntaxTreeNode* c3, SyntaxTreeNode* c4){
SyntaxTreeNode* node = malloc(sizeof(SyntaxTreeNode));
node->type = type;
node->symbol = symbol;
node->children[0] = c1;
node->children[1] = c2;
node->children[2] = c3;
node->children[3] = c4;
return node;
}
void printAST(SyntaxTreeNode* node, int level) {
if(node != NULL) {
for(int i=0; i<level; i++) fprintf(stderr," ");
if(level>0) fprintf(stderr, "|_");
fprintf(stderr, _nodeTypeName(node->type));
fprintf(stderr, " ");
if(node->symbol != NULL) fprintf(stderr, "%s", node->symbol->name);
fprintf(stderr, "\n");
for(int i=0; i<4; i++){
SyntaxTreeNode* child = node->children[i];
printAST(child, level+1);
}
}
}