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-rw-r--r--libsolidity/analysis/TypeChecker.cpp6
-rw-r--r--test/libsolidity/syntaxTests/types/var_type_suggest.sol12
2 files changed, 18 insertions, 0 deletions
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp
index e868d111..47df10b2 100644
--- a/libsolidity/analysis/TypeChecker.cpp
+++ b/libsolidity/analysis/TypeChecker.cpp
@@ -1034,7 +1034,10 @@ string createTupleDecl(vector<ASTPointer<VariableDeclaration>> const& _decls)
vector<string> components;
for (ASTPointer<VariableDeclaration> const& decl: _decls)
if (decl)
+ {
+ solAssert(decl->annotation().type, "");
components.emplace_back(decl->annotation().type->toString(false) + " " + decl->name());
+ }
else
components.emplace_back();
@@ -1052,6 +1055,9 @@ bool typeCanBeExpressed(vector<ASTPointer<VariableDeclaration>> const& decls)
if (!decl)
continue;
+ if (!decl->annotation().type)
+ return false;
+
if (auto functionType = dynamic_cast<FunctionType const*>(decl->annotation().type.get()))
if (
functionType->kind() != FunctionType::Kind::Internal &&
diff --git a/test/libsolidity/syntaxTests/types/var_type_suggest.sol b/test/libsolidity/syntaxTests/types/var_type_suggest.sol
index 176fab96..cc35fdd6 100644
--- a/test/libsolidity/syntaxTests/types/var_type_suggest.sol
+++ b/test/libsolidity/syntaxTests/types/var_type_suggest.sol
@@ -12,6 +12,10 @@ contract C {
var myblockhash = block.blockhash;
var (a, b) = (2, "troi");
var (x,, z) = h();
+ var (c, d) = ("");
+ var (k, l) = (2);
+ var (m, n) = 1;
+ var (o, p) = "";
}
}
// ----
@@ -21,3 +25,11 @@ contract C {
// SyntaxError: (293-326): Use of the "var" keyword is disallowed. Type cannot be expressed in syntax.
// SyntaxError: (336-360): Use of the "var" keyword is disallowed. Use explicit declaration `(uint8 a, string memory b) = ...´ instead.
// SyntaxError: (370-387): Use of the "var" keyword is disallowed. Use explicit declaration `(uint256 x, , uint256 z) = ...´ instead.
+// TypeError: (397-414): Different number of components on the left hand side (2) than on the right hand side (1).
+// SyntaxError: (397-414): Use of the "var" keyword is disallowed. Type cannot be expressed in syntax.
+// TypeError: (424-440): Different number of components on the left hand side (2) than on the right hand side (1).
+// SyntaxError: (424-440): Use of the "var" keyword is disallowed. Type cannot be expressed in syntax.
+// TypeError: (450-464): Different number of components on the left hand side (2) than on the right hand side (1).
+// SyntaxError: (450-464): Use of the "var" keyword is disallowed. Type cannot be expressed in syntax.
+// TypeError: (474-489): Different number of components on the left hand side (2) than on the right hand side (1).
+// SyntaxError: (474-489): Use of the "var" keyword is disallowed. Type cannot be expressed in syntax.