| 1 | /** @file
|
|---|
| 2 | *
|
|---|
| 3 | * VBox HDD container test utility - scripting engine AST node related functions.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2013 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 | #define LOGGROUP LOGGROUP_DEFAULT
|
|---|
| 18 | #include <iprt/list.h>
|
|---|
| 19 | #include <iprt/mem.h>
|
|---|
| 20 | #include <iprt/assert.h>
|
|---|
| 21 | #include <iprt/string.h>
|
|---|
| 22 |
|
|---|
| 23 | #include <VBox/log.h>
|
|---|
| 24 |
|
|---|
| 25 | #include "VDScriptAst.h"
|
|---|
| 26 |
|
|---|
| 27 | /**
|
|---|
| 28 | * Put all child nodes of the given expression AST node onto the given to free list.
|
|---|
| 29 | *
|
|---|
| 30 | * @returns nothing.
|
|---|
| 31 | * @param pList The free list to append everything to.
|
|---|
| 32 | * @param pAstNode The expression node to free.
|
|---|
| 33 | */
|
|---|
| 34 | static void vdScriptAstNodeExpressionPutOnFreeList(PRTLISTANCHOR pList, PVDSCRIPTASTCORE pAstNode)
|
|---|
| 35 | {
|
|---|
| 36 | AssertMsgReturnVoid(pAstNode->enmClass == VDSCRIPTASTCLASS_EXPRESSION,
|
|---|
| 37 | ("Given AST node is not a statement\n"));
|
|---|
| 38 |
|
|---|
| 39 | PVDSCRIPTASTEXPR pExpr = (PVDSCRIPTASTEXPR)pAstNode;
|
|---|
| 40 | switch (pExpr->enmType)
|
|---|
| 41 | {
|
|---|
| 42 | case VDSCRIPTEXPRTYPE_PRIMARY_NUMCONST:
|
|---|
| 43 | break;
|
|---|
| 44 | case VDSCRIPTEXPRTYPE_PRIMARY_STRINGCONST:
|
|---|
| 45 | RTStrFree((char *)pExpr->pszStr);
|
|---|
| 46 | break;
|
|---|
| 47 | case VDSCRIPTEXPRTYPE_PRIMARY_IDENTIFIER:
|
|---|
| 48 | {
|
|---|
| 49 | RTListAppend(pList, &pExpr->pIde->Core.ListNode);
|
|---|
| 50 | break;
|
|---|
| 51 | }
|
|---|
| 52 | case VDSCRIPTEXPRTYPE_ASSIGNMENT_LIST:
|
|---|
| 53 | {
|
|---|
| 54 | while (!RTListIsEmpty(&pExpr->ListExpr))
|
|---|
| 55 | {
|
|---|
| 56 | PVDSCRIPTASTCORE pNode = RTListGetFirst(&pExpr->ListExpr, VDSCRIPTASTCORE, ListNode);
|
|---|
| 57 | RTListNodeRemove(&pNode->ListNode);
|
|---|
| 58 | RTListAppend(pList, &pNode->ListNode);
|
|---|
| 59 | }
|
|---|
| 60 | break;
|
|---|
| 61 | }
|
|---|
| 62 | case VDSCRIPTEXPRTYPE_POSTFIX_FNCALL:
|
|---|
| 63 | {
|
|---|
| 64 | RTListAppend(pList, &pExpr->FnCall.pFnIde->Core.ListNode);
|
|---|
| 65 | while (!RTListIsEmpty(&pExpr->FnCall.ListArgs))
|
|---|
| 66 | {
|
|---|
| 67 | PVDSCRIPTASTCORE pNode = RTListGetFirst(&pExpr->FnCall.ListArgs, VDSCRIPTASTCORE, ListNode);
|
|---|
| 68 | RTListNodeRemove(&pNode->ListNode);
|
|---|
| 69 | RTListAppend(pList, &pNode->ListNode);
|
|---|
| 70 | }
|
|---|
| 71 | break;
|
|---|
| 72 | }
|
|---|
| 73 | case VDSCRIPTEXPRTYPE_POSTFIX_INCREMENT:
|
|---|
| 74 | case VDSCRIPTEXPRTYPE_POSTFIX_DECREMENT:
|
|---|
| 75 | case VDSCRIPTEXPRTYPE_UNARY_INCREMENT:
|
|---|
| 76 | case VDSCRIPTEXPRTYPE_UNARY_DECREMENT:
|
|---|
| 77 | case VDSCRIPTEXPRTYPE_UNARY_POSSIGN:
|
|---|
| 78 | case VDSCRIPTEXPRTYPE_UNARY_NEGSIGN:
|
|---|
| 79 | case VDSCRIPTEXPRTYPE_UNARY_INVERT:
|
|---|
| 80 | case VDSCRIPTEXPRTYPE_UNARY_NEGATE:
|
|---|
| 81 | {
|
|---|
| 82 | RTListAppend(pList, &pExpr->pExpr->Core.ListNode);
|
|---|
| 83 | break;
|
|---|
| 84 | }
|
|---|
| 85 | case VDSCRIPTEXPRTYPE_MULTIPLICATION:
|
|---|
| 86 | case VDSCRIPTEXPRTYPE_DIVISION:
|
|---|
| 87 | case VDSCRIPTEXPRTYPE_MODULUS:
|
|---|
| 88 | case VDSCRIPTEXPRTYPE_ADDITION:
|
|---|
| 89 | case VDSCRIPTEXPRTYPE_SUBTRACTION:
|
|---|
| 90 | case VDSCRIPTEXPRTYPE_LSR:
|
|---|
| 91 | case VDSCRIPTEXPRTYPE_LSL:
|
|---|
| 92 | case VDSCRIPTEXPRTYPE_LOWER:
|
|---|
| 93 | case VDSCRIPTEXPRTYPE_HIGHER:
|
|---|
| 94 | case VDSCRIPTEXPRTYPE_LOWEREQUAL:
|
|---|
| 95 | case VDSCRIPTEXPRTYPE_HIGHEREQUAL:
|
|---|
| 96 | case VDSCRIPTEXPRTYPE_EQUAL:
|
|---|
| 97 | case VDSCRIPTEXPRTYPE_NOTEQUAL:
|
|---|
| 98 | case VDSCRIPTEXPRTYPE_BITWISE_AND:
|
|---|
| 99 | case VDSCRIPTEXPRTYPE_BITWISE_XOR:
|
|---|
| 100 | case VDSCRIPTEXPRTYPE_BITWISE_OR:
|
|---|
| 101 | case VDSCRIPTEXPRTYPE_LOGICAL_AND:
|
|---|
| 102 | case VDSCRIPTEXPRTYPE_LOGICAL_OR:
|
|---|
| 103 | case VDSCRIPTEXPRTYPE_ASSIGN:
|
|---|
| 104 | case VDSCRIPTEXPRTYPE_ASSIGN_MULT:
|
|---|
| 105 | case VDSCRIPTEXPRTYPE_ASSIGN_DIV:
|
|---|
| 106 | case VDSCRIPTEXPRTYPE_ASSIGN_MOD:
|
|---|
| 107 | case VDSCRIPTEXPRTYPE_ASSIGN_ADD:
|
|---|
| 108 | case VDSCRIPTEXPRTYPE_ASSIGN_SUB:
|
|---|
| 109 | case VDSCRIPTEXPRTYPE_ASSIGN_LSL:
|
|---|
| 110 | case VDSCRIPTEXPRTYPE_ASSIGN_LSR:
|
|---|
| 111 | case VDSCRIPTEXPRTYPE_ASSIGN_AND:
|
|---|
| 112 | case VDSCRIPTEXPRTYPE_ASSIGN_XOR:
|
|---|
| 113 | case VDSCRIPTEXPRTYPE_ASSIGN_OR:
|
|---|
| 114 | {
|
|---|
| 115 | RTListAppend(pList, &pExpr->BinaryOp.pLeftExpr->Core.ListNode);
|
|---|
| 116 | RTListAppend(pList, &pExpr->BinaryOp.pRightExpr->Core.ListNode);
|
|---|
| 117 | break;
|
|---|
| 118 | }
|
|---|
| 119 | case VDSCRIPTEXPRTYPE_INVALID:
|
|---|
| 120 | default:
|
|---|
| 121 | AssertMsgFailedReturnVoid(("Invalid AST node expression type %d\n",
|
|---|
| 122 | pExpr->enmType));
|
|---|
| 123 | }
|
|---|
| 124 | }
|
|---|
| 125 |
|
|---|
| 126 | /**
|
|---|
| 127 | * Free a given statement AST node and put everything on the given to free list.
|
|---|
| 128 | *
|
|---|
| 129 | * @returns nothing.
|
|---|
| 130 | * @param pList The free list to append everything to.
|
|---|
| 131 | * @param pAstNode The statement node to free.
|
|---|
| 132 | */
|
|---|
| 133 | static void vdScriptAstNodeStatmentPutOnFreeList(PRTLISTANCHOR pList, PVDSCRIPTASTCORE pAstNode)
|
|---|
| 134 | {
|
|---|
| 135 | AssertMsgReturnVoid(pAstNode->enmClass == VDSCRIPTASTCLASS_STATEMENT,
|
|---|
| 136 | ("Given AST node is not a statement\n"));
|
|---|
| 137 |
|
|---|
| 138 | PVDSCRIPTASTSTMT pStmt = (PVDSCRIPTASTSTMT)pAstNode;
|
|---|
| 139 | switch (pStmt->enmStmtType)
|
|---|
| 140 | {
|
|---|
| 141 | case VDSCRIPTSTMTTYPE_COMPOUND:
|
|---|
| 142 | {
|
|---|
| 143 | /* Put all declarations on the to free list. */
|
|---|
| 144 | while (!RTListIsEmpty(&pStmt->Compound.ListDecls))
|
|---|
| 145 | {
|
|---|
| 146 | PVDSCRIPTASTCORE pNode = RTListGetFirst(&pStmt->Compound.ListDecls, VDSCRIPTASTCORE, ListNode);
|
|---|
| 147 | RTListNodeRemove(&pNode->ListNode);
|
|---|
| 148 | RTListAppend(pList, &pNode->ListNode);
|
|---|
| 149 | }
|
|---|
| 150 |
|
|---|
| 151 | /* Put all statements on the to free list. */
|
|---|
| 152 | while (!RTListIsEmpty(&pStmt->Compound.ListStmts))
|
|---|
| 153 | {
|
|---|
| 154 | PVDSCRIPTASTCORE pNode = RTListGetFirst(&pStmt->Compound.ListDecls, VDSCRIPTASTCORE, ListNode);
|
|---|
| 155 | RTListNodeRemove(&pNode->ListNode);
|
|---|
| 156 | RTListAppend(pList, &pNode->ListNode);
|
|---|
| 157 | }
|
|---|
| 158 | break;
|
|---|
| 159 | }
|
|---|
| 160 | case VDSCRIPTSTMTTYPE_EXPRESSION:
|
|---|
| 161 | {
|
|---|
| 162 | RTListAppend(pList, &pStmt->pExpr->Core.ListNode);
|
|---|
| 163 | break;
|
|---|
| 164 | }
|
|---|
| 165 | case VDSCRIPTSTMTTYPE_IF:
|
|---|
| 166 | {
|
|---|
| 167 | RTListAppend(pList, &pStmt->If.pCond->Core.ListNode);
|
|---|
| 168 | RTListAppend(pList, &pStmt->If.pTrueStmt->Core.ListNode);
|
|---|
| 169 | if (pStmt->If.pElseStmt)
|
|---|
| 170 | RTListAppend(pList, &pStmt->If.pElseStmt->Core.ListNode);
|
|---|
| 171 | break;
|
|---|
| 172 | }
|
|---|
| 173 | case VDSCRIPTSTMTTYPE_SWITCH:
|
|---|
| 174 | {
|
|---|
| 175 | RTListAppend(pList, &pStmt->Switch.pCond->Core.ListNode);
|
|---|
| 176 | RTListAppend(pList, &pStmt->Switch.pStmt->Core.ListNode);
|
|---|
| 177 | break;
|
|---|
| 178 | }
|
|---|
| 179 | case VDSCRIPTSTMTTYPE_WHILE:
|
|---|
| 180 | {
|
|---|
| 181 | RTListAppend(pList, &pStmt->While.pCond->Core.ListNode);
|
|---|
| 182 | RTListAppend(pList, &pStmt->While.pStmt->Core.ListNode);
|
|---|
| 183 | break;
|
|---|
| 184 | }
|
|---|
| 185 | case VDSCRIPTSTMTTYPE_FOR:
|
|---|
| 186 | {
|
|---|
| 187 | RTListAppend(pList, &pStmt->For.pExprStart->Core.ListNode);
|
|---|
| 188 | RTListAppend(pList, &pStmt->For.pExprCond->Core.ListNode);
|
|---|
| 189 | RTListAppend(pList, &pStmt->For.pExpr3->Core.ListNode);
|
|---|
| 190 | RTListAppend(pList, &pStmt->For.pStmt->Core.ListNode);
|
|---|
| 191 | break;
|
|---|
| 192 | }
|
|---|
| 193 | case VDSCRIPTSTMTTYPE_RETURN:
|
|---|
| 194 | {
|
|---|
| 195 | if (pStmt->pExpr)
|
|---|
| 196 | RTListAppend(pList, &pStmt->pExpr->Core.ListNode);
|
|---|
| 197 | break;
|
|---|
| 198 | }
|
|---|
| 199 | case VDSCRIPTSTMTTYPE_CASE:
|
|---|
| 200 | {
|
|---|
| 201 | RTListAppend(pList, &pStmt->Case.pExpr->Core.ListNode);
|
|---|
| 202 | RTListAppend(pList, &pStmt->Case.pStmt->Core.ListNode);
|
|---|
| 203 | break;
|
|---|
| 204 | }
|
|---|
| 205 | case VDSCRIPTSTMTTYPE_DEFAULT:
|
|---|
| 206 | {
|
|---|
| 207 | RTListAppend(pList, &pStmt->Case.pStmt->Core.ListNode);
|
|---|
| 208 | break;
|
|---|
| 209 | }
|
|---|
| 210 | case VDSCRIPTSTMTTYPE_CONTINUE:
|
|---|
| 211 | case VDSCRIPTSTMTTYPE_BREAK:
|
|---|
| 212 | break;
|
|---|
| 213 | case VDSCRIPTSTMTTYPE_INVALID:
|
|---|
| 214 | default:
|
|---|
| 215 | AssertMsgFailedReturnVoid(("Invalid AST node statement type %d\n",
|
|---|
| 216 | pStmt->enmStmtType));
|
|---|
| 217 | }
|
|---|
| 218 | }
|
|---|
| 219 |
|
|---|
| 220 | DECLHIDDEN(void) vdScriptAstNodeFree(PVDSCRIPTASTCORE pAstNode)
|
|---|
| 221 | {
|
|---|
| 222 | RTLISTANCHOR ListFree;
|
|---|
| 223 |
|
|---|
| 224 | /*
|
|---|
| 225 | * The node is not allowed to be part of a list because we need it
|
|---|
| 226 | * for the nodes to free list.
|
|---|
| 227 | */
|
|---|
| 228 | Assert(RTListIsEmpty(&pAstNode->ListNode));
|
|---|
| 229 | RTListInit(&ListFree);
|
|---|
| 230 | RTListAppend(&ListFree, &pAstNode->ListNode);
|
|---|
| 231 |
|
|---|
| 232 | do
|
|---|
| 233 | {
|
|---|
| 234 | pAstNode = RTListGetFirst(&ListFree, VDSCRIPTASTCORE, ListNode);
|
|---|
| 235 | RTListNodeRemove(&pAstNode->ListNode);
|
|---|
| 236 |
|
|---|
| 237 | switch (pAstNode->enmClass)
|
|---|
| 238 | {
|
|---|
| 239 | case VDSCRIPTASTCLASS_FUNCTION:
|
|---|
| 240 | {
|
|---|
| 241 | PVDSCRIPTASTFN pFn = (PVDSCRIPTASTFN)pAstNode;
|
|---|
| 242 |
|
|---|
| 243 | if (pFn->pRetType)
|
|---|
| 244 | RTListAppend(&ListFree, &pFn->pRetType->Core.ListNode);
|
|---|
| 245 | if (pFn->pFnIde)
|
|---|
| 246 | RTListAppend(&ListFree, &pFn->pFnIde->Core.ListNode);
|
|---|
| 247 |
|
|---|
| 248 | /* Put argument list on the to free list. */
|
|---|
| 249 | while (!RTListIsEmpty(&pFn->ListArgs))
|
|---|
| 250 | {
|
|---|
| 251 | PVDSCRIPTASTCORE pArg = RTListGetFirst(&pFn->ListArgs, VDSCRIPTASTCORE, ListNode);
|
|---|
| 252 | RTListNodeRemove(&pArg->ListNode);
|
|---|
| 253 | RTListAppend(&ListFree, &pArg->ListNode);
|
|---|
| 254 | }
|
|---|
| 255 |
|
|---|
| 256 | /* Put compound statement onto the list. */
|
|---|
| 257 | RTListAppend(&ListFree, &pFn->pCompoundStmts->Core.ListNode);
|
|---|
| 258 | break;
|
|---|
| 259 | }
|
|---|
| 260 | case VDSCRIPTASTCLASS_FUNCTIONARG:
|
|---|
| 261 | {
|
|---|
| 262 | PVDSCRIPTASTFNARG pAstNodeArg = (PVDSCRIPTASTFNARG)pAstNode;
|
|---|
| 263 | if (pAstNodeArg->pType)
|
|---|
| 264 | RTListAppend(&ListFree, &pAstNodeArg->pType->Core.ListNode);
|
|---|
| 265 | if (pAstNodeArg->pArgIde)
|
|---|
| 266 | RTListAppend(&ListFree, &pAstNodeArg->pArgIde->Core.ListNode);
|
|---|
| 267 | break;
|
|---|
| 268 | }
|
|---|
| 269 | case VDSCRIPTASTCLASS_IDENTIFIER:
|
|---|
| 270 | break;
|
|---|
| 271 | case VDSCRIPTASTCLASS_DECLARATION:
|
|---|
| 272 | break;
|
|---|
| 273 | case VDSCRIPTASTCLASS_STATEMENT:
|
|---|
| 274 | {
|
|---|
| 275 | vdScriptAstNodeStatmentPutOnFreeList(&ListFree, pAstNode);
|
|---|
| 276 | break;
|
|---|
| 277 | }
|
|---|
| 278 | case VDSCRIPTASTCLASS_EXPRESSION:
|
|---|
| 279 | {
|
|---|
| 280 | vdScriptAstNodeExpressionPutOnFreeList(&ListFree, pAstNode);
|
|---|
| 281 | break;
|
|---|
| 282 | }
|
|---|
| 283 | case VDSCRIPTASTCLASS_INVALID:
|
|---|
| 284 | default:
|
|---|
| 285 | AssertMsgFailedReturnVoid(("Invalid AST node class given %d\n", pAstNode->enmClass));
|
|---|
| 286 | }
|
|---|
| 287 |
|
|---|
| 288 | RTMemFree(pAstNode);
|
|---|
| 289 | } while (!RTListIsEmpty(&ListFree));
|
|---|
| 290 |
|
|---|
| 291 | }
|
|---|
| 292 |
|
|---|
| 293 | DECLHIDDEN(PVDSCRIPTASTCORE) vdScriptAstNodeAlloc(VDSCRIPTASTCLASS enmClass)
|
|---|
| 294 | {
|
|---|
| 295 | size_t cbAlloc = 0;
|
|---|
| 296 |
|
|---|
| 297 | switch (enmClass)
|
|---|
| 298 | {
|
|---|
| 299 | case VDSCRIPTASTCLASS_FUNCTION:
|
|---|
| 300 | cbAlloc = sizeof(VDSCRIPTASTFN);
|
|---|
| 301 | break;
|
|---|
| 302 | case VDSCRIPTASTCLASS_FUNCTIONARG:
|
|---|
| 303 | cbAlloc = sizeof(VDSCRIPTASTFNARG);
|
|---|
| 304 | break;
|
|---|
| 305 | case VDSCRIPTASTCLASS_DECLARATION:
|
|---|
| 306 | cbAlloc = sizeof(VDSCRIPTASTDECL);
|
|---|
| 307 | break;
|
|---|
| 308 | case VDSCRIPTASTCLASS_STATEMENT:
|
|---|
| 309 | cbAlloc = sizeof(VDSCRIPTASTSTMT);
|
|---|
| 310 | break;
|
|---|
| 311 | case VDSCRIPTASTCLASS_EXPRESSION:
|
|---|
| 312 | cbAlloc = sizeof(VDSCRIPTASTEXPR);
|
|---|
| 313 | break;
|
|---|
| 314 | case VDSCRIPTASTCLASS_IDENTIFIER:
|
|---|
| 315 | case VDSCRIPTASTCLASS_INVALID:
|
|---|
| 316 | default:
|
|---|
| 317 | AssertMsgFailedReturn(("Invalid AST node class given %d\n", enmClass), NULL);
|
|---|
| 318 | }
|
|---|
| 319 |
|
|---|
| 320 | PVDSCRIPTASTCORE pAstNode = (PVDSCRIPTASTCORE)RTMemAllocZ(cbAlloc);
|
|---|
| 321 | if (pAstNode)
|
|---|
| 322 | {
|
|---|
| 323 | pAstNode->enmClass = enmClass;
|
|---|
| 324 | RTListInit(&pAstNode->ListNode);
|
|---|
| 325 | }
|
|---|
| 326 |
|
|---|
| 327 | return pAstNode;
|
|---|
| 328 | }
|
|---|
| 329 |
|
|---|
| 330 | DECLHIDDEN(PVDSCRIPTASTIDE) vdScriptAstNodeIdeAlloc(unsigned cchIde)
|
|---|
| 331 | {
|
|---|
| 332 | PVDSCRIPTASTIDE pAstNode = (PVDSCRIPTASTIDE)RTMemAllocZ(RT_OFFSETOF(VDSCRIPTASTIDE, aszIde[cchIde + 1]));
|
|---|
| 333 | if (pAstNode)
|
|---|
| 334 | {
|
|---|
| 335 | pAstNode->Core.enmClass = VDSCRIPTASTCLASS_IDENTIFIER;
|
|---|
| 336 | RTListInit(&pAstNode->Core.ListNode);
|
|---|
| 337 | }
|
|---|
| 338 |
|
|---|
| 339 | return pAstNode;
|
|---|
| 340 | }
|
|---|
