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Rewrite GenericVisitor

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This commit is contained in:
Leonardo Alt
2019-11-26 15:55:06 +01:00
parent 41177bc75c
commit 2bfa3a7c97
8 changed files with 59 additions and 123 deletions
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libyul/optimiser/FullInliner.cpp
+8 -5
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@@ -157,17 +157,19 @@ void InlineModifier::operator()(Block& _block)
std::optional<vector<Statement>> InlineModifier::tryInlineStatement(Statement& _statement)
{
// Only inline for expression statements, assignments and variable declarations.
Expression* e = std::visit(GenericFallbackReturnsVisitor<Expression*, ExpressionStatement, Assignment, VariableDeclaration>(
Expression* e = std::visit(GenericVisitor{
VisitorFallback<Expression*>{},
[](ExpressionStatement& _s) { return &_s.expression; },
[](Assignment& _s) { return _s.value.get(); },
[](VariableDeclaration& _s) { return _s.value.get(); }
), _statement);
}, _statement);
if (e)
{
// Only inline direct function calls.
FunctionCall* funCall = std::visit(GenericFallbackReturnsVisitor<FunctionCall*, FunctionCall&>(
FunctionCall* funCall = std::visit(GenericVisitor{
VisitorFallback<FunctionCall*>{},
[](FunctionCall& _e) { return &_e; }
), *e);
}, *e);
if (funCall && m_driver.shallInline(*funCall, m_currentFunction))
return performInline(_statement, *funCall);
}
@@ -205,7 +207,8 @@ vector<Statement> InlineModifier::performInline(Statement& _statement, FunctionC
Statement newBody = BodyCopier(m_nameDispenser, variableReplacements)(function->body);
newStatements += std::move(std::get<Block>(newBody).statements);
std::visit(GenericFallbackVisitor<Assignment, VariableDeclaration>{
std::visit(GenericVisitor{
VisitorFallback<>{},
[&](Assignment& _assignment)
{
for (size_t i = 0; i < _assignment.variableNames.size(); ++i)