Merge pull request #9173 from ethereum/fixBoundCalldata

Fix bound functions with calldata parameters.

test/libsolidity/semanticTests/libraries/bound_returning_calldata.sol

@@ -0,0 +1,17 @@
+library D {
+    function f(bytes calldata _x) internal pure returns (bytes calldata) {
+        return _x;
+    }
+    function g(bytes calldata _x) internal pure returns (bytes memory) {
+        return _x;
+    }
+}
+
+contract C {
+    using D for bytes;
+    function f(bytes calldata _x) public pure returns (byte, byte) {
+        return (_x.f()[0], _x.g()[0]);
+    }
+}
+// ----
+// f(bytes): 0x20, 4, "abcd" -> 0x6100000000000000000000000000000000000000000000000000000000000000, 0x6100000000000000000000000000000000000000000000000000000000000000

test/libsolidity/semanticTests/libraries/bound_returning_calldata_external.sol

@@ -0,0 +1,20 @@
+library D {
+    function f(bytes calldata _x) public pure returns (bytes calldata) {
+        return _x;
+    }
+    function g(bytes calldata _x) public pure returns (bytes memory) {
+        return _x;
+    }
+}
+
+contract C {
+    using D for bytes;
+    function f(bytes calldata _x) public pure returns (byte, byte) {
+        return (_x.f()[0], _x.g()[0]);
+    }
+}
+// ====
+// EVMVersion: >homestead
+// ----
+// library: D
+// f(bytes): 0x20, 4, "abcd" -> 0x6100000000000000000000000000000000000000000000000000000000000000, 0x6100000000000000000000000000000000000000000000000000000000000000

test/libsolidity/semanticTests/libraries/bound_to_calldata.sol

@@ -0,0 +1,17 @@
+library D {
+    function f(bytes calldata _x) internal pure returns (byte) {
+        return _x[0];
+    }
+    function g(bytes memory _x) internal pure returns (byte) {
+        return _x[0];
+    }
+}
+
+contract C {
+    using D for bytes;
+    function f(bytes calldata _x) public pure returns (byte, byte) {
+        return (_x.f(), _x.g());
+    }
+}
+// ----
+// f(bytes): 0x20, 4, "abcd" -> 0x6100000000000000000000000000000000000000000000000000000000000000, 0x6100000000000000000000000000000000000000000000000000000000000000

test/libsolidity/semanticTests/libraries/bound_to_calldata_external.sol

@@ -0,0 +1,20 @@
+library D {
+    function f(bytes calldata _x) public pure returns (byte) {
+        return _x[0];
+    }
+    function g(bytes memory _x) public pure returns (byte) {
+        return _x[0];
+    }
+}
+
+contract C {
+    using D for bytes;
+    function f(bytes calldata _x) public pure returns (byte, byte) {
+        return (_x.f(), _x.g());
+    }
+}
+// ====
+// EVMVersion: >homestead
+// ----
+// library: D
+// f(bytes): 0x20, 4, "abcd" -> 0x6100000000000000000000000000000000000000000000000000000000000000, 0x6100000000000000000000000000000000000000000000000000000000000000

test/libsolidity/syntaxTests/bound/bound_calldata.sol

@@ -0,0 +1,9 @@
+library D { function f(bytes calldata) internal pure {} }
+contract C {
+	using D for bytes;
+	function f(bytes memory _x) public pure {
+		_x.f();
+	}
+}
+// ----
+// TypeError: (136-140): Member "f" not found or not visible after argument-dependent lookup in bytes memory.