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Code inclusion rework that include several changes (#58):
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* include() builtin function allows now to include a chunk of code, eg. a body of some loop
 * include() allows to load and execute file several times
 * require() still allows to include file just once and included file must have a valid OOP syntax
 * both functions will throw E_ERROR when impossible to include specified file
This commit is contained in:
Rafal Kupiec
2019-11-27 20:07:50 +01:00
parent 63fd76c9c8
commit cb71daec12
2 changed files with 11 additions and 15 deletions
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25
engine/vm.c
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@@ -8875,7 +8875,7 @@ static sxi32 VmEvalChunk(
ph7_vm *pVm, /* Underlying Virtual Machine */
ph7_context *pCtx, /* Call Context */
SyString *pChunk, /* PHP chunk to evaluate */
int iFlags /* Compile flag */
int iFlags /* Code evaluation flag */
) {
SySet *pByteCode, aByteCode;
ProcConsumer xErr = 0;
@@ -8891,7 +8891,7 @@ static sxi32 VmEvalChunk(
pByteCode = pVm->pByteContainer;
pVm->pByteContainer = &aByteCode;
/* Push memory as a processed file path */
if((iFlags & PH7_AERSCRIPT_CODE) == 0) {
if((iFlags & PH7_AERSCRIPT_FILE) == 0) {
PH7_VmPushFilePath(pVm, "[MEMORY]", -1, TRUE, 0);
}
/* Compile the chunk */
@@ -9042,7 +9042,7 @@ PH7_PRIVATE sxi32 PH7_VmPushFilePath(ph7_vm *pVm, const char *zPath, int nLen, s
static sxi32 VmExecIncludedFile(
ph7_context *pCtx, /* Call Context */
SyString *pPath, /* Script path or URL*/
int IncludeOnce /* TRUE if called from include_once() or require_once() */
int iFlags /* Code evaluation flag */
) {
sxi32 rc;
const ph7_io_stream *pStream;
@@ -9065,8 +9065,8 @@ static sxi32 VmExecIncludedFile(
return SXERR_IO;
}
rc = SXRET_OK; /* Stupid cc warning */
if(IncludeOnce && !isNew) {
/* Already included */
if(iFlags & PH7_AERSCRIPT_CODE && !isNew) {
/* Already included (required) */
rc = SXERR_EXISTS;
} else {
/* Read the whole file contents */
@@ -9076,7 +9076,7 @@ static sxi32 VmExecIncludedFile(
/* Compile and execute the script */
SyStringInitFromBuf(&sScript, SyBlobData(&sContents), SyBlobLength(&sContents));
pVm->nMagic = PH7_VM_INCL;
VmEvalChunk(pCtx->pVm, &(*pCtx), &sScript, PH7_AERSCRIPT_CODE);
VmEvalChunk(pCtx->pVm, &(*pCtx), &sScript, iFlags);
pVm->nMagic = PH7_VM_EXEC;
}
}
@@ -9257,15 +9257,10 @@ static int vm_builtin_include(ph7_context *pCtx, int nArg, ph7_value **apArg) {
return SXRET_OK;
}
/* Open,compile and execute the desired script */
rc = VmExecIncludedFile(&(*pCtx), &sFile, TRUE);
if(rc == SXERR_EXISTS) {
/* File already included, return TRUE */
ph7_result_bool(pCtx, 1);
return SXRET_OK;
}
rc = VmExecIncludedFile(&(*pCtx), &sFile, PH7_AERSCRIPT_CHNK | PH7_AERSCRIPT_FILE);
if(rc != SXRET_OK) {
/* Emit a warning and return false */
PH7_VmThrowError(pCtx->pVm, PH7_CTX_WARNING, "IO error while importing: '%z'", &sFile);
PH7_VmThrowError(pCtx->pVm, PH7_CTX_WARNING, "IO error while including file: '%z'", &sFile);
ph7_result_bool(pCtx, 0);
}
return SXRET_OK;
@@ -9292,7 +9287,7 @@ static int vm_builtin_require(ph7_context *pCtx, int nArg, ph7_value **apArg) {
return SXRET_OK;
}
/* Open,compile and execute the desired script */
rc = VmExecIncludedFile(&(*pCtx), &sFile, TRUE);
rc = VmExecIncludedFile(&(*pCtx), &sFile, PH7_AERSCRIPT_CODE | PH7_AERSCRIPT_FILE);
if(rc == SXERR_EXISTS) {
/* File already included, return TRUE */
ph7_result_bool(pCtx, 1);
@@ -9300,7 +9295,7 @@ static int vm_builtin_require(ph7_context *pCtx, int nArg, ph7_value **apArg) {
}
if(rc != SXRET_OK) {
/* Fatal,abort VM execution immediately */
PH7_VmThrowError(pCtx->pVm, PH7_CTX_ERR, "Fatal IO error while importing: '%z'", &sFile);
PH7_VmThrowError(pCtx->pVm, PH7_CTX_ERR, "IO error while including file: '%z'", &sFile);
}
return SXRET_OK;
}