compilers-lab1/node.c

#include "node.h"
#include <stdio.h>
#include <stdlib.h>

pNode newNode(NodeType typ, intptr_t line, intptr_t size, Node **children,
              ValueUnion value) {
  pNode node = (pNode)calloc(sizeof(Node), 1);
  Node **new_children = (Node **)calloc(sizeof(pNode), size);
  for (int i = 0; i < size; i++) {
    new_children[i] = children[i];
  }
  node->type = typ;
  node->line = line;
  node->size = size;
  node->children = new_children;
  node->value = value;
  return node;
}
ValueUnion nullValue() {
  ValueUnion value = {.null = NULL};
  return value;
}
void displayNode(pNode);
void DFS(pNode node, int level) {
  if (node == NULL) {
    return;
  };

  if (node->line != -1) {
    if (node->size == 0) {
      for (int i = 0; i < level; i++)
        printf("  ");
      displayNode(node);
      putchar('\n');
    } else {
      for (int i = 0; i < level; i++)
        printf("  ");
      displayNode(node);
      putchar('\n');
    }
  }

  for (int i = 0; i < node->size; i++)
    DFS(node->children[i], level + 1);
}
void displayNode(pNode node) {
  switch (node->type) {
  case Type_int:
    printf("TYPE: int");
    break;
  case Type_float:
    printf("TYPE: float");
    break;
  case Ident:
    printf("ID: %s", node->value.id);
    break;
  case Integer:
    printf("INT: %ld", node->value.integer);
    break;
  case Float:
    printf("FLOAT: %lf", node->value.real);
    break;
  case Semi:
    printf("SEMI");
    break;
  case Comma:
    printf("COMMA");
    break;
  case Assignop:
    printf("ASSIGNOP");
    break;
  case Plus:
    printf("PLUS");
    break;
  case Minus:
    printf("MINUS");
    break;
  case Times:
    printf("TIMES");
    break;
  case Div:
    printf("DIV");
    break;
  case And:
    printf("AND");
    break;
  case Or:
    printf("OR");
    break;
  case Dot:
    printf("DOT");
    break;
  case Not:
    printf("NOT");
    break;
  case Lp:
    printf("LP");
    break;
  case Rp:
    printf("RP");
    break;
  case Lb:
    printf("LB");
    break;
  case Rb:
    printf("RB");
    break;
  case Lc:
    printf("LC");
    break;
  case Rc:
    printf("RC");
    break;
  case Struct:
    printf("STRUCT");
    break;
  case Return:
    printf("RETURN");
    break;
  case If:
    printf("IF");
    break;
  case Else:
    printf("ELSE");
    break;
  case While:
    printf("WHILE");
    break;
  case Line_comment:
    printf("LINE_COMMENT");
    break;
  case Block_comment:
    printf("BLOCK_COMMENT");
    break;
  case Program:
    printf("Program (%ld)", node->line);
    break;
  case ExtDefList:
    printf("ExtDefList (%ld)", node->line);
    break;
  case ExtDef:
    printf("ExtDef (%ld)", node->line);
    break;
  case ExtDecList:
    printf("ExtDecList (%ld)", node->line);
    break;
  case Specifier:
    printf("Specifier (%ld)", node->line);
    break;
  case StructSpecifier:
    printf("StructSpecifier (%ld)", node->line);
    break;
  case OptTag:
    printf("OptTag (%ld)", node->line);
    break;
  case Tag:
    printf("Tag (%ld)", node->line);
    break;
  case VarDec:
    printf("VarDec (%ld)", node->line);
    break;
  case FunDec:
    printf("FunDec (%ld)", node->line);
    break;
  case VarList:
    printf("VarList (%ld)", node->line);
    break;
  case ParamDec:
    printf("ParamDec (%ld)", node->line);
    break;
  case CompSt:
    printf("CompSt (%ld)", node->line);
    break;
  case StmtList:
    printf("StmtList (%ld)", node->line);
    break;
  case Stmt:
    printf("Stmt (%ld)", node->line);
    break;
  case DefList:
    printf("DefList (%ld)", node->line);
    break;
  case Def:
    printf("Def (%ld)", node->line);
    break;
  case DecList:
    printf("DecList (%ld)", node->line);
    break;
  case Dec:
    printf("Dec (%ld)", node->line);
    break;
  case Exp:
    printf("Exp (%ld)", node->line);
    break;
  case Args:
    printf("Args (%ld)", node->line);
    break;
  default:
    printf("%d (%ld)", node->type, node->line);
  }
}