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Allow renaming C keywords

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This commit is contained in:
Wilson Snyder
2009-07-22 15:21:41 -04:00
parent c44febe85e
commit 59b491e3a8
9 changed files with 55 additions and 74 deletions
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src/V3Name.cpp
+27 -22
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@@ -34,6 +34,7 @@
#include "V3Global.h"
#include "V3Name.h"
#include "V3Ast.h"
#include "V3LanguageWords.h"
//######################################################################
// Name state, as a visitor of each AstNode
@@ -45,14 +46,11 @@ private:
// AstCell::user1() -> bool. Set true if already processed
// AstScope::user1() -> bool. Set true if already processed
// AstVar::user1() -> bool. Set true if already processed
//
// AstCell::user2() -> bool. Set true if was privitized
// AstVar::user2() -> bool. Set true if was privitized
AstUser1InUse m_inuser1;
AstUser2InUse m_inuser2;
// STATE
AstModule* m_modp;
V3LanguageWords m_words; // Reserved word detector
// METHODS
static int debug() {
@@ -61,6 +59,23 @@ private:
return level;
}
void rename(AstNode* nodep, bool addPvt) {
if (!nodep->user1()) { // Not already done
if (addPvt) {
string newname = (string)"__PVT__"+nodep->name();
nodep->name(newname);
} else {
string rsvd = m_words.isKeyword(nodep->name());
if (rsvd != "") {
nodep->v3warn(SYMRSVDWORD,"Symbol matches "+rsvd+": '"<<nodep->name()<<"'");
string newname = (string)"__SYM__"+nodep->name();
nodep->name(newname);
}
}
nodep->user1(1);
}
}
// VISITORS
virtual void visit(AstModule* nodep, AstNUser*) {
m_modp = nodep;
@@ -70,16 +85,13 @@ private:
// Add __PVT__ to names of local signals
virtual void visit(AstVar* nodep, AstNUser*) {
// Don't iterate... Don't need temps for RANGES under the Var.
if (!nodep->user1()
&& !m_modp->isTop()
&& !nodep->isSigPublic()
&& !nodep->isTemp()) { // Don't bother to rename internal signals
// Change the name to something private...
string newname = (string)"__PVT__"+nodep->name();
nodep->name(newname);
nodep->user1(1);
nodep->user2(1);
}
rename(nodep, (!m_modp->isTop()
&& !nodep->isSigPublic()
&& !nodep->isTemp())); // Don't bother to rename internal signals
}
virtual void visit(AstCFunc* nodep, AstNUser*) {
nodep->iterateChildren(*this);
rename(nodep, false);
}
virtual void visit(AstVarRef* nodep, AstNUser*) {
if (nodep->varp()) {
@@ -88,14 +100,7 @@ private:
}
}
virtual void visit(AstCell* nodep, AstNUser*) {
if (!nodep->user1()
&& !nodep->modp()->modPublic()) {
// Change the name to something private...
string newname = (string)"__PVT__"+nodep->name();
nodep->name(newname);
nodep->user1(1);
nodep->user2(1);
}
rename(nodep, !nodep->modp()->modPublic());
nodep->iterateChildren(*this);
}
virtual void visit(AstScope* nodep, AstNUser*) {