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como_ast_free.c
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#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include "como_ast.h"
#include "como_globals.h"
#include "como_debug.h"
void ast_node_free(ast_node *p)
{
if(!p)
return;
switch(p->type) {
case AST_NODE_TYPE_BOOL:
/* Not implemented */
assert(0);
break;
case AST_NODE_TYPE_SLOT_ACCESS:
ast_node_free(p->u1.slot_access_node.value);
ast_node_free(p->u1.slot_access_node.index);
free(p);
break;
case AST_NODE_TYPE_ARRAY:
ast_node_free(p->u1.array_node.elements);
free(p);
break;
case AST_NODE_TYPE_ASSERT:
ast_node_free(p->u1.assert_node.expr);
free(p);
break;
case AST_NODE_TYPE_TYPEOF:
ast_node_free(p->u1.typeof_node.expr);
free(p);
break;
case AST_NODE_TYPE_UNARY_OP:
ast_node_free(p->u1.unary_node.expr);
free(p);
break;
case AST_NODE_TYPE_POSTFIX:
ast_node_free(p->u1.postfix_node.expr);
free(p);
break;
case AST_NODE_TYPE_WHILE:
ast_node_free(p->u1.while_node.condition);
ast_node_free(p->u1.while_node.body);
free(p);
break;
case AST_NODE_TYPE_FOR:
ast_node_free(p->u1.for_node.initialization);
ast_node_free(p->u1.for_node.condition);
ast_node_free(p->u1.for_node.final_expression);
ast_node_free(p->u1.for_node.body);
free(p);
break;
case AST_NODE_TYPE_STRING:
free(p->u1.string_value.value);
free(p);
break;
case AST_NODE_TYPE_RET:
ast_node_free(p->u1.return_node.expr);
free(p);
break;
case AST_NODE_TYPE_IF:
ast_node_free(p->u1.if_node.condition);
ast_node_free(p->u1.if_node.b1);
ast_node_free(p->u1.if_node.b2);
free(p);
break;
case AST_NODE_TYPE_NUMBER:
free(p);
break;
case AST_NODE_TYPE_STATEMENT_LIST: {
size_t i;
for(i = 0; i < p->u1.statements_node.count; i++) {
ast_node_free(p->u1.statements_node.statement_list[i]);
}
free(p->u1.statements_node.statement_list);
free(p);
}
break;
case AST_NODE_TYPE_BIN_OP:
ast_node_free(p->u1.binary_node.left);
ast_node_free(p->u1.binary_node.right);
free(p);
break;
case AST_NODE_TYPE_ID:
free(p->u1.id_node.name);
free(p);
break;
case AST_NODE_TYPE_FUNC_DECL:
free(p->u1.function_node.name);
ast_node_free(p->u1.function_node.parameter_list);
ast_node_free(p->u1.function_node.body);
free(p);
break;
case AST_NODE_TYPE_PRINT:
ast_node_free(p->u1.print_node.expr);
free(p);
break;
case AST_NODE_TYPE_CALL:
ast_node_free(p->u1.call_node.id);
ast_node_free(p->u1.call_node.arguments);
free(p);
break;
default:
como_error_noreturn(NULL, "p->type not implemented (%d)", p->type);
break;
}
}