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Support direct class member init.

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This commit is contained in:
Wilson Snyder
2020-04-18 20:20:17 -04:00
parent efacac2e3d
commit 466535abdc
5 changed files with 49 additions and 26 deletions
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src/V3LinkParse.cpp
+7 -8
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@@ -221,17 +221,16 @@ private:
if (nodep->isParam() || (m_ftaskp && nodep->isNonOutput())) {
// 1. Parameters and function inputs: It's a default to use if not overridden
} else if (VN_IS(m_modp, Class)) {
// We make a AstVar initial value, but then do not set it in the constructor
// V3Emit::emitVarRecurse only does non-value inits.
// Perhaps these should still become a new form of
// AstInitial, and we propagate the initial to the class
// constructor
nodep->valuep()->v3error("Unsupported: initial value on member");
// 2. Class member init become initials (as might call functions)
// later move into class constructor
nodep->addNextHere(
new AstInitial(fl, new AstAssign(fl, new AstVarRef(fl, nodep->name(), true),
nodep->valuep()->unlinkFrBack())));
} else if (!m_ftaskp && nodep->isNonOutput()) {
nodep->v3error(
"Unsupported: Default value on module input: " << nodep->prettyNameQ());
nodep->valuep()->unlinkFrBack()->deleteTree();
} // 2. Under modules, it's an initial value to be loaded at time 0 via an AstInitial
} // 3. Under modules, it's an initial value to be loaded at time 0 via an AstInitial
else if (m_valueModp) {
// Making an AstAssign (vs AstAssignW) to a wire is an error, suppress it
FileLine* newfl = new FileLine(fl);
@@ -239,7 +238,7 @@ private:
nodep->addNextHere(new AstInitial(
newfl, new AstAssign(newfl, new AstVarRef(newfl, nodep->name(), true),
nodep->valuep()->unlinkFrBack())));
} // 3. Under blocks, it's an initial value to be under an assign
} // 4. Under blocks, it's an initial value to be under an assign
else {
nodep->addNextHere(new AstAssign(fl, new AstVarRef(fl, nodep->name(), true),
nodep->valuep()->unlinkFrBack()));