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Get rid of global keyword, fixes #29

This commit is contained in:
Rafal Kupiec 2018-07-31 15:24:56 +02:00
parent aa5a20f283
commit 2c37807370
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
3 changed files with 0 additions and 74 deletions
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72
engine/compiler.c
View File

@ -2538,77 +2538,6 @@ Synchronize:
}
return SXRET_OK;
}
/*
* Compile the global construct.
* According to the PHP language reference
* In PHP global variables must be declared global inside a function if they are going
* to be used in that function.
* Example #1 Using global
* <?php
* $a = 1;
* $b = 2;
* function Sum()
* {
* global $a, $b;
* $b = $a + $b;
* }
* Sum();
* echo $b;
* ?>
* The above script will output 3. By declaring $a and $b global within the function
* all references to either variable will refer to the global version. There is no limit
* to the number of global variables that can be manipulated by a function.
*/
static sxi32 PH7_CompileGlobal(ph7_gen_state *pGen) {
SyToken *pTmp, *pNext = 0;
sxi32 nExpr;
sxi32 rc;
/* Jump the 'global' keyword */
pGen->pIn++;
if(pGen->pIn >= pGen->pEnd || (pGen->pIn->nType & PH7_TK_SEMI)) {
/* Nothing to process */
return SXRET_OK;
}
pTmp = pGen->pEnd;
nExpr = 0;
while(SXRET_OK == PH7_GetNextExpr(pGen->pIn, pTmp, &pNext)) {
if(pGen->pIn < pNext) {
pGen->pEnd = pNext;
if((pGen->pIn->nType & PH7_TK_DOLLAR) == 0) {
rc = PH7_GenCompileError(&(*pGen), E_ERROR, pGen->pIn->nLine, "global: Expected variable name");
if(rc == SXERR_ABORT) {
return SXERR_ABORT;
}
} else {
pGen->pIn++;
if(pGen->pIn >= pGen->pEnd) {
/* Emit a warning */
PH7_GenCompileError(&(*pGen), E_WARNING, pGen->pIn[-1].nLine, "global: Empty variable name");
} else {
rc = PH7_CompileExpr(&(*pGen), 0, 0);
if(rc == SXERR_ABORT) {
return SXERR_ABORT;
} else if(rc != SXERR_EMPTY) {
nExpr++;
}
}
}
}
/* Next expression in the stream */
pGen->pIn = pNext;
/* Jump trailing commas */
while(pGen->pIn < pTmp && (pGen->pIn->nType & PH7_TK_COMMA)) {
pGen->pIn++;
}
}
/* Restore token stream */
pGen->pEnd = pTmp;
if(nExpr > 0) {
/* Emit the uplink instruction */
PH7_VmEmitInstr(pGen->pVm, PH7_OP_UPLINK, nExpr, 0, 0, 0);
}
return SXRET_OK;
}
/*
* Compile the return statement.
* According to the PHP language reference
@ -5466,7 +5395,6 @@ static const LangConstruct aLangConstruct[] = {
{ PH7_TKWRD_RETURN, PH7_CompileReturn }, /* return statement */
{ PH7_TKWRD_SWITCH, PH7_CompileSwitch }, /* Switch statement */
{ PH7_TKWRD_DO, PH7_CompileDoWhile }, /* do{ }while(); statement */
{ PH7_TKWRD_GLOBAL, PH7_CompileGlobal }, /* global statement */
{ PH7_TKWRD_STATIC, PH7_CompileStatic }, /* static statement */
{ PH7_TKWRD_EXIT, PH7_CompileHalt }, /* exit language construct */
{ PH7_TKWRD_TRY, PH7_CompileTry }, /* try statement */

1
engine/lexer.c
View File

@ -602,7 +602,6 @@ static sxu32 KeywordCode(const char *z, int n) {
{"new", PH7_TKWRD_NEW},
{"const", PH7_TKWRD_CONST},
{"string", PH7_TKWRD_STRING},
{"global", PH7_TKWRD_GLOBAL},
{"using", PH7_TKWRD_USING},
{"elseif", PH7_TKWRD_ELIF},
{"else", PH7_TKWRD_ELSE},

1
include/ph7int.h
View File

@ -1511,7 +1511,6 @@ enum ph7_expr_id {
#define PH7_TKWRD_CONTINUE 34 /* continue */
#define PH7_TKWRD_EXIT 35 /* exit */
#define PH7_TKWRD_ECHO 37 /* echo */
#define PH7_TKWRD_GLOBAL 38 /* global */
#define PH7_TKWRD_IMPLEMENTS 39 /* implements */
#define PH7_TKWRD_INCONCE 40 /* include_once */
#define PH7_TKWRD_INCLUDE 41 /* include */