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authorAlex Beregszaszi <alex@rtfs.hu>2017-05-24 20:13:05 +0800
committerAlex Beregszaszi <alex@rtfs.hu>2017-05-24 20:35:52 +0800
commit56fe3a6ab93116438ea52634e891c71b995d7c3f (patch)
treef45ffcd9d895c9728445d30d56aeb1c71c94d44f
parent451acd4c9f118a299e627d574dee1785d870723a (diff)
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Better error messages during parsing functional instructions
-rw-r--r--Changelog.md4
-rw-r--r--libsolidity/inlineasm/AsmParser.cpp9
2 files changed, 13 insertions, 0 deletions
diff --git a/Changelog.md b/Changelog.md
index 2073c0a4..5ba712f5 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,9 @@
### 0.4.12 (unreleased)
+
+Features:
* AST: export all attributes to Json format
+ * Inline Assembly: Present proper error message when not supplying enough arguments to a functional
+ instruction.
Bugfixes:
* Unused variable warnings no longer issued for variables used inside inline assembly
diff --git a/libsolidity/inlineasm/AsmParser.cpp b/libsolidity/inlineasm/AsmParser.cpp
index 85ae9424..519bfa2e 100644
--- a/libsolidity/inlineasm/AsmParser.cpp
+++ b/libsolidity/inlineasm/AsmParser.cpp
@@ -321,6 +321,15 @@ assembly::Statement Parser::parseCall(assembly::Statement&& _instruction)
unsigned args = unsigned(instrInfo.args);
for (unsigned i = 0; i < args; ++i)
{
+ /// check for premature closing parentheses
+ if (m_scanner->currentToken() == Token::RParen)
+ fatalParserError(string(
+ "Expected " +
+ boost::lexical_cast<string>(args) +
+ " arguments, but received " +
+ boost::lexical_cast<string>(i)
+ ));
+
ret.arguments.emplace_back(parseExpression());
if (i != args - 1)
{