diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index caf91f58..ca8f3d09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "windows-2022"]
-        type: ["brownie", "buidler", "dapp", "embark", "hardhat", "solc", "truffle", "waffle", "foundry", "standard"]
+        type: ["brownie", "buidler", "dapp", "embark", "hardhat", "solc", "truffle", "waffle", "foundry", "standard", "solc_multi_file", "hardhat_multi_file"]
         exclude:
           # Currently broken, tries to pull git:// which is blocked by GH
           - type: embark
diff --git a/scripts/ci_test_hardhat_multi_file.sh b/scripts/ci_test_hardhat_multi_file.sh
new file mode 100755
index 00000000..59f049b0
--- /dev/null
+++ b/scripts/ci_test_hardhat_multi_file.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+DIR=$(mktemp -d)
+
+cp -r tests/hardhat-multi-file "$DIR"
+cd "$DIR/hardhat-multi-file" || exit 255
+npm install
+crytic-compile --compile-remove-metadata --export-formats solc,truffle .
+
+cd - || exit 255
+node tests/process_combined_solc.js "$DIR/hardhat-multi-file/crytic-export/combined_solc.json" $(realpath $DIR)
+DIFF=$(diff -q "$DIR/hardhat-multi-file/crytic-export" tests/expected/hardhat-multi-file)
+if [ "$?" != "0" ] || [ "$DIFF" != "" ]
+then  
+    echo "hardhat-multi-file test failed"
+    echo "$DIFF"
+    exit 255
+fi
diff --git a/scripts/ci_test_solc_multi_file.sh b/scripts/ci_test_solc_multi_file.sh
new file mode 100755
index 00000000..72650dad
--- /dev/null
+++ b/scripts/ci_test_solc_multi_file.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+DIR=$(mktemp -d)
+
+cp -r tests/solc-multi-file "$DIR"
+cd "$DIR/solc-multi-file" || exit 255
+crytic-compile --compile-remove-metadata --export-formats solc,truffle .
+
+cd - || exit 255
+node tests/process_combined_solc.js "$DIR/solc-multi-file/crytic-export/combined_solc.json" $(realpath $DIR)
+DIFF=$(diff -q "$DIR/solc-multi-file/crytic-export" tests/expected/solc-multi-file)
+if [ "$?" != "0" ] || [ "$DIFF" != "" ]
+then  
+    echo "solc-multi-file test failed"
+    echo "$DIFF"
+    exit 255
+fi
diff --git a/tests/expected/hardhat-multi-file/A.json b/tests/expected/hardhat-multi-file/A.json
new file mode 100644
index 00000000..647e3d27
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/A.json
@@ -0,0 +1 @@
+{"contractName": "A", "abi": [{"inputs": [{"internalType": "uint256", "name": "yval", "type": "uint256"}, {"internalType": "uint256", "name": "zval", "type": "uint256"}], "stateMutability": "nonpayable", "type": "constructor"}, {"inputs": [{"internalType": "uint256", "name": "xval", "type": "uint256"}], "name": "set", "outputs": [], "stateMutability": "nonpayable", "type": "function"}, {"inputs": [], "name": "sum", "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}], "stateMutability": "view", "type": "function"}], "bytecode": 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"typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "src": "717:11:0", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "functionReturnParameters": 139, "id": 147, "nodeType": "Return", "src": "710:18:0"}]}, "functionSelector": "a0d7afb7", "id": 149, "implemented": true, "kind": "function", "modifiers": [], "name": "diff", "nodeType": "FunctionDefinition", "parameters": {"id": 136, "nodeType": "ParameterList", "parameters": [], "src": "671:2:0"}, "returnParameters": {"id": 139, "nodeType": "ParameterList", "parameters": [{"constant": false, "id": 138, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 149, "src": "695:7:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 137, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "695:7:0", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "visibility": "internal"}], "src": "694:9:0"}, "scope": 150, "src": "658:75:0", "stateMutability": "view", "virtual": false, "visibility": "public"}], "scope": 151, "src": "517:218:0"}], "src": "37:699:0"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/B.json b/tests/expected/hardhat-multi-file/B.json
new file mode 100644
index 00000000..a0f522d7
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/B.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/C.json b/tests/expected/hardhat-multi-file/C.json
new file mode 100644
index 00000000..3f0041c4
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/C.json
@@ -0,0 +1 @@
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"scope": 230, "src": "292:196:1"}], "src": "37:452:1"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/D.json b/tests/expected/hardhat-multi-file/D.json
new file mode 100644
index 00000000..c91bfa9d
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/D.json
@@ -0,0 +1 @@
+{"contractName": "D", "abi": [{"inputs": [{"internalType": "uint256", "name": "yval", "type": "uint256"}], "stateMutability": "nonpayable", "type": "constructor"}, {"inputs": [], "name": "diff", "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}], "stateMutability": "view", "type": "function"}], "bytecode": 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\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/E.json b/tests/expected/hardhat-multi-file/E.json
new file mode 100644
index 00000000..d6bf44ad
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/E.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/G.json b/tests/expected/hardhat-multi-file/G.json
new file mode 100644
index 00000000..1878843c
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/G.json
@@ -0,0 +1 @@
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"lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "337:14:3", "tryCall": false, "typeDescriptions": {"typeIdentifier": "t_tuple$__$", "typeString": "tuple()"}}, "id": 341, "nodeType": "ExpressionStatement", "src": "337:14:3"}]}, "functionSelector": "4018d9aa", "id": 343, "implemented": true, "kind": "function", "modifiers": [], "name": "setX", "nodeType": "FunctionDefinition", "parameters": {"id": 328, "nodeType": "ParameterList", "parameters": [{"constant": false, "id": 327, "mutability": "mutable", "name": "xval", "nodeType": "VariableDeclaration", "scope": 343, "src": "296:12:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 326, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "296:7:3", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "visibility": "internal"}], "src": "295:14:3"}, "returnParameters": {"id": 329, "nodeType": "ParameterList", "parameters": [], "src": "317:0:3"}, "scope": 344, "src": "282:74:3", "stateMutability": "nonpayable", "virtual": false, "visibility": "public"}], "scope": 345, "src": "81:277:3"}], "src": "37:322:3"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/I.json b/tests/expected/hardhat-multi-file/I.json
new file mode 100644
index 00000000..246256d3
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/I.json
@@ -0,0 +1 @@
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422, "src": "103:318:4"}], "src": "37:385:4"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/K.json b/tests/expected/hardhat-multi-file/K.json
new file mode 100644
index 00000000..553b8272
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/K.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/X.json b/tests/expected/hardhat-multi-file/X.json
new file mode 100644
index 00000000..41d3c91c
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/X.json
@@ -0,0 +1 @@
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558, "src": "103:318:6"}], "src": "37:385:6"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/Z.json b/tests/expected/hardhat-multi-file/Z.json
new file mode 100644
index 00000000..d3c37616
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/Z.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/hardhat-multi-file/combined_solc.json b/tests/expected/hardhat-multi-file/combined_solc.json
new file mode 100644
index 00000000..2fc725c9
--- /dev/null
+++ b/tests/expected/hardhat-multi-file/combined_solc.json
@@ -0,0 +1 @@
+["TMPDIR/hardhat-multi-file/contracts/A.sol","TMPDIR/hardhat-multi-file/contracts/C.sol","TMPDIR/hardhat-multi-file/contracts/E/E.sol","TMPDIR/hardhat-multi-file/contracts/E/G.sol","TMPDIR/hardhat-multi-file/contracts/I/I.sol","TMPDIR/hardhat-multi-file/contracts/I/K.sol","TMPDIR/hardhat-multi-file/contracts/X/X.sol","TMPDIR/hardhat-multi-file/contracts/X/Z.sol"]
\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/A.json b/tests/expected/solc-multi-file/A.json
new file mode 100644
index 00000000..459f8fe6
--- /dev/null
+++ b/tests/expected/solc-multi-file/A.json
@@ -0,0 +1 @@
+{"contractName": "A", "abi": [{"constant": false, "inputs": [{"name": "xval", "type": "uint256"}], "name": "set", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function"}, {"constant": true, "inputs": [], "name": "sum", "outputs": [{"name": "", "type": "uint256"}], "payable": false, "stateMutability": "view", "type": "function"}, {"inputs": [{"name": "yval", "type": "uint256"}, {"name": "zval", "type": "uint256"}], "payable": false, "stateMutability": "nonpayable", "type": "constructor"}], "bytecode": 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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/B.json b/tests/expected/solc-multi-file/B.json
new file mode 100644
index 00000000..16de1887
--- /dev/null
+++ b/tests/expected/solc-multi-file/B.json
@@ -0,0 +1 @@
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diff --git a/tests/expected/solc-multi-file/C.json b/tests/expected/solc-multi-file/C.json
new file mode 100644
index 00000000..0d3c025f
--- /dev/null
+++ b/tests/expected/solc-multi-file/C.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/D.json b/tests/expected/solc-multi-file/D.json
new file mode 100644
index 00000000..8258acc2
--- /dev/null
+++ b/tests/expected/solc-multi-file/D.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/E.json b/tests/expected/solc-multi-file/E.json
new file mode 100644
index 00000000..d4d88d3a
--- /dev/null
+++ b/tests/expected/solc-multi-file/E.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/G.json b/tests/expected/solc-multi-file/G.json
new file mode 100644
index 00000000..eda4f948
--- /dev/null
+++ b/tests/expected/solc-multi-file/G.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/I.json b/tests/expected/solc-multi-file/I.json
new file mode 100644
index 00000000..dbae6e25
--- /dev/null
+++ b/tests/expected/solc-multi-file/I.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/K.json b/tests/expected/solc-multi-file/K.json
new file mode 100644
index 00000000..a93a3383
--- /dev/null
+++ b/tests/expected/solc-multi-file/K.json
@@ -0,0 +1 @@
+{"contractName": "K", "abi": [{"constant": false, "inputs": [{"name": "xval", "type": "uint256"}], "name": "setX", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function"}, {"constant": true, "inputs": [], "name": "sum", "outputs": [{"name": "", "type": "uint256"}], "payable": false, "stateMutability": "view", "type": "function"}, {"inputs": [{"name": "yval", "type": "uint256"}], "payable": false, "stateMutability": "nonpayable", "type": "constructor"}], "bytecode": 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"deployedBytecode": "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", "ast": {"absolutePath": "./I/K.sol", "exportedSymbols": {"K": [343]}, "id": 344, "nodeType": "SourceUnit", "nodes": [{"absolutePath": "./I/I.sol", "file": "./I.sol", "id": 287, "nodeType": "ImportDirective", "scope": 344, "sourceUnit": 475, "src": "0:17:5", "symbolAliases": [], "unitAlias": ""}, {"baseContracts": [], "contractDependencies": [474], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 343, "linearizedBaseContracts": [343], "name": "K", "nodeType": "ContractDefinition", "nodes": [{"constant": false, "id": 289, "name": "x", "nodeType": "VariableDeclaration", "scope": 343, "src": "34:9:5", "stateVariable": true, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 288, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "34:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "value": null, "visibility": "internal"}, {"constant": false, "id": 291, "name": "y", "nodeType": "VariableDeclaration", "scope": 343, "src": "47:9:5", "stateVariable": true, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 290, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "47:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "value": null, "visibility": "internal"}, {"constant": false, "id": 293, "name": "i", "nodeType": "VariableDeclaration", "scope": 343, "src": "60:3:5", "stateVariable": true, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}, "typeName": {"contractScope": null, "id": 292, "name": "I", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 474, "src": "60:1:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "value": null, "visibility": "internal"}, {"body": {"id": 313, "nodeType": "Block", "src": "101:48:5", "statements": [{"expression": {"argumentTypes": null, "id": 300, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": {"argumentTypes": null, "id": 298, "name": "x", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 289, "src": "107:1:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "nodeType": "Assignment", "operator": "=", "rightHandSide": {"argumentTypes": null, "hexValue": "30", "id": 299, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "111:1:5", "subdenomination": null, "typeDescriptions": {"typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0"}, "value": "0"}, "src": "107:5:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "id": 301, "nodeType": "ExpressionStatement", "src": "107:5:5"}, {"expression": {"argumentTypes": null, "id": 304, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": {"argumentTypes": null, "id": 302, "name": "y", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 291, "src": "118:1:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "nodeType": "Assignment", "operator": "=", "rightHandSide": {"argumentTypes": null, "id": 303, "name": "yval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 295, "src": "122:4:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "src": "118:8:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "id": 305, "nodeType": "ExpressionStatement", "src": "118:8:5"}, {"expression": {"argumentTypes": null, "id": 311, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": {"argumentTypes": null, "id": 306, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 293, "src": "132:1:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "nodeType": "Assignment", "operator": "=", "rightHandSide": {"argumentTypes": null, "arguments": [{"argumentTypes": null, "hexValue": "35", "id": 309, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "142:1:5", "subdenomination": null, "typeDescriptions": {"typeIdentifier": "t_rational_5_by_1", "typeString": "int_const 5"}, "value": "5"}], "expression": {"argumentTypes": [{"typeIdentifier": "t_rational_5_by_1", "typeString": "int_const 5"}], "id": 308, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "NewExpression", "src": "136:5:5", "typeDescriptions": {"typeIdentifier": "t_function_creation_nonpayable$_t_uint256_$returns$_t_contract$_I_$474_$", "typeString": "function (uint256) returns (contract I)"}, "typeName": {"contractScope": null, "id": 307, "name": "I", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 474, "src": "140:1:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}}, "id": 310, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "136:8:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "src": "132:12:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "id": 312, "nodeType": "ExpressionStatement", "src": "132:12:5"}]}, "documentation": null, "id": 314, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "parameters": {"id": 296, "nodeType": "ParameterList", "parameters": [{"constant": false, "id": 295, "name": "yval", "nodeType": "VariableDeclaration", "scope": 314, "src": "80:12:5", "stateVariable": false, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 294, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "80:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "value": null, "visibility": "internal"}], "src": "79:14:5"}, "returnParameters": {"id": 297, "nodeType": "ParameterList", "parameters": [], "src": "101:0:5"}, "scope": 343, "src": "68:81:5", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public"}, {"body": {"id": 323, "nodeType": "Block", "src": "198:25:5", "statements": [{"expression": {"argumentTypes": null, "arguments": [], "expression": {"argumentTypes": [], "expression": {"argumentTypes": null, "id": 319, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 293, "src": "211:1:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "id": 320, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sum", "nodeType": "MemberAccess", "referencedDeclaration": 457, "src": "211:5:5", "typeDescriptions": {"typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)"}}, "id": 321, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "211:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "functionReturnParameters": 318, "id": 322, "nodeType": "Return", "src": "204:14:5"}]}, "documentation": null, "id": 324, "implemented": true, "kind": "function", "modifiers": [], "name": "sum", "nodeType": "FunctionDefinition", "parameters": {"id": 315, "nodeType": "ParameterList", "parameters": [], "src": "165:2:5"}, "returnParameters": {"id": 318, "nodeType": "ParameterList", "parameters": [{"constant": false, "id": 317, "name": "", "nodeType": "VariableDeclaration", "scope": 324, "src": "189:7:5", "stateVariable": false, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 316, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "189:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "value": null, "visibility": "internal"}], "src": "188:9:5"}, "scope": 343, "src": "153:70:5", "stateMutability": "view", "superFunction": null, "visibility": "public"}, {"body": {"id": 341, "nodeType": "Block", "src": "262:39:5", "statements": [{"expression": {"argumentTypes": null, "id": 331, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": {"argumentTypes": null, "id": 329, "name": "x", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 289, "src": "268:1:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "nodeType": "Assignment", "operator": "=", "rightHandSide": {"argumentTypes": null, "id": 330, "name": "xval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 326, "src": "272:4:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "src": "268:8:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "id": 332, "nodeType": "ExpressionStatement", "src": "268:8:5"}, {"expression": {"argumentTypes": null, "arguments": [{"argumentTypes": null, "commonType": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "id": 338, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": {"argumentTypes": null, "id": 336, "name": "xval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 326, "src": "289:4:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": {"argumentTypes": null, "hexValue": "31", "id": 337, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "294:1:5", "subdenomination": null, "typeDescriptions": {"typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1"}, "value": "1"}, "src": "289:6:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}], "expression": {"argumentTypes": [{"typeIdentifier": "t_uint256", "typeString": "uint256"}], "expression": {"argumentTypes": null, "id": 333, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 293, "src": "282:1:5", "typeDescriptions": {"typeIdentifier": "t_contract$_I_$474", "typeString": "contract I"}}, "id": 335, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setX", "nodeType": "MemberAccess", "referencedDeclaration": 473, "src": "282:6:5", "typeDescriptions": {"typeIdentifier": "t_function_external_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256) external"}}, "id": 339, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "282:14:5", "typeDescriptions": {"typeIdentifier": "t_tuple$__$", "typeString": "tuple()"}}, "id": 340, "nodeType": "ExpressionStatement", "src": "282:14:5"}]}, "documentation": null, "id": 342, "implemented": true, "kind": "function", "modifiers": [], "name": "setX", "nodeType": "FunctionDefinition", "parameters": {"id": 327, "nodeType": "ParameterList", "parameters": [{"constant": false, "id": 326, "name": "xval", "nodeType": "VariableDeclaration", "scope": 342, "src": "241:12:5", "stateVariable": false, "storageLocation": "default", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}, "typeName": {"id": 325, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "241:7:5", "typeDescriptions": {"typeIdentifier": "t_uint256", "typeString": "uint256"}}, "value": null, "visibility": "internal"}], "src": "240:14:5"}, "returnParameters": {"id": 328, "nodeType": "ParameterList", "parameters": [], "src": "262:0:5"}, "scope": 343, "src": "227:74:5", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public"}], "scope": 344, "src": "19:284:5"}], "src": "0:304:5"}, "userdoc": {"methods": {}, "notice": null}, "devdoc": {"methods": {}, "author": null, "details": null, "title": null}}
\ No newline at end of file
diff --git a/tests/expected/solc-multi-file/combined_solc.json b/tests/expected/solc-multi-file/combined_solc.json
new file mode 100644
index 00000000..d7a3e33a
--- /dev/null
+++ b/tests/expected/solc-multi-file/combined_solc.json
@@ -0,0 +1 @@
+["TMPDIR/solc-multi-file/A.sol","TMPDIR/solc-multi-file/C.sol","TMPDIR/solc-multi-file/E/E.sol","TMPDIR/solc-multi-file/E/G.sol","TMPDIR/solc-multi-file/I/I.sol","TMPDIR/solc-multi-file/I/K.sol"]
\ No newline at end of file
diff --git a/tests/hardhat-multi-file/contracts/A.sol b/tests/hardhat-multi-file/contracts/A.sol
new file mode 100644
index 00000000..0bb6bd5f
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/A.sol
@@ -0,0 +1,51 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "./C.sol";
+import "./E/G.sol";
+import "./I/K.sol";
+
+contract A {
+  uint256 x;
+  uint256 y;
+  uint256 z;
+  B b;
+  C c;
+  D d;
+
+  constructor(uint256 yval, uint256 zval) {
+    x = 0;
+    y = yval;
+    z = zval;
+    b = new B();
+    c = new C(zval);
+    d = new D(zval);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+z+b.diff()+c.sum()+d.diff();
+  }
+
+  function set(uint256 xval) public {
+    x = xval;
+    c.setX(xval);
+  }
+}
+
+contract B {
+  uint256 x;
+  uint256 y;
+  G g;
+  K k;
+
+  constructor() {
+    x = 0;
+    y = 6;
+    g = new G(x+1);
+    k = new K(x+2);
+  }
+
+  function diff() public view returns (uint256) {
+    return x-y+g.sum();
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/C.sol b/tests/hardhat-multi-file/contracts/C.sol
new file mode 100644
index 00000000..ccbe12f5
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/C.sol
@@ -0,0 +1,36 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+contract C {
+  uint256 x;
+  uint256 y;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y;
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+  }
+}
+
+contract D {
+  uint256 x;
+  uint256 y;
+  C c;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    c = new C(5);
+  }
+
+  function diff() public view returns (uint256) {
+    return x-y;
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/E/E.sol b/tests/hardhat-multi-file/contracts/E/E.sol
new file mode 100644
index 00000000..db3f88d9
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/E/E.sol
@@ -0,0 +1,25 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "../C.sol";
+import "../I/I.sol";
+
+contract E {
+  uint256 x;
+  uint256 y;
+  D d;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/E/G.sol b/tests/hardhat-multi-file/contracts/E/G.sol
new file mode 100644
index 00000000..8683fab2
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/E/G.sol
@@ -0,0 +1,25 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "./E.sol";
+
+contract G {
+  uint256 x;
+  uint256 y;
+  E e;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    e = new E(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(xval+1);
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/I/I.sol b/tests/hardhat-multi-file/contracts/I/I.sol
new file mode 100644
index 00000000..a1963604
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/I/I.sol
@@ -0,0 +1,28 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "../C.sol";
+import "../E/E.sol";
+
+contract I {
+  uint256 x;
+  uint256 y;
+  D d;
+  E e;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+    e = new E(yval+1);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff()+e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(y);
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/I/K.sol b/tests/hardhat-multi-file/contracts/I/K.sol
new file mode 100644
index 00000000..65f1bd73
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/I/K.sol
@@ -0,0 +1,25 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "./I.sol";
+
+contract K {
+  uint256 x;
+  uint256 y;
+  I i;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    i = new I(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return i.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    i.setX(xval+1);
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/X/X.sol b/tests/hardhat-multi-file/contracts/X/X.sol
new file mode 100644
index 00000000..dd590b27
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/X/X.sol
@@ -0,0 +1,28 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "../C.sol";
+import "../E/E.sol";
+
+contract X {
+  uint256 x;
+  uint256 y;
+  D d;
+  E e;
+
+  constructor(uint256 yval) {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+    e = new E(yval+1);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff()+e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(y);
+  }
+}
diff --git a/tests/hardhat-multi-file/contracts/X/Z.sol b/tests/hardhat-multi-file/contracts/X/Z.sol
new file mode 100644
index 00000000..201b7451
--- /dev/null
+++ b/tests/hardhat-multi-file/contracts/X/Z.sol
@@ -0,0 +1,22 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.7.0;
+
+import "./X.sol";
+
+contract Z {
+  uint256 y;
+  X x;
+
+  constructor(uint256 yval) {
+    y = yval;
+    x = new X(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return x.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x.setX(xval+1);
+  }
+}
diff --git a/tests/hardhat-multi-file/hardhat.config.js b/tests/hardhat-multi-file/hardhat.config.js
new file mode 100644
index 00000000..c51cfb93
--- /dev/null
+++ b/tests/hardhat-multi-file/hardhat.config.js
@@ -0,0 +1,22 @@
+require("@nomiclabs/hardhat-waffle");
+
+// This is a sample Hardhat task. To learn how to create your own go to
+// https://hardhat.org/guides/create-task.html
+task("accounts", "Prints the list of accounts", async () => {
+  const accounts = await ethers.getSigners();
+
+  for (const account of accounts) {
+    console.log(account.address);
+  }
+});
+
+// You need to export an object to set up your config
+// Go to https://hardhat.org/config/ to learn more
+
+/**
+ * @type import('hardhat/config').HardhatUserConfig
+ */
+module.exports = {
+  solidity: "0.7.3",
+};
+
diff --git a/tests/hardhat-multi-file/package.json b/tests/hardhat-multi-file/package.json
new file mode 100644
index 00000000..074828dd
--- /dev/null
+++ b/tests/hardhat-multi-file/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "hardhat-project",
+  "devDependencies": {
+    "@nomiclabs/hardhat-ethers": "^2.0.0",
+    "@nomiclabs/hardhat-waffle": "^2.0.0",
+    "chai": "^4.2.0",
+    "ethereum-waffle": "^3.2.0",
+    "ethers": "^5.0.19",
+    "hardhat": "^2.0.2"
+  }
+}
diff --git a/tests/hardhat-multi-file/scripts/sample-script.js b/tests/hardhat-multi-file/scripts/sample-script.js
new file mode 100644
index 00000000..2b7bcd93
--- /dev/null
+++ b/tests/hardhat-multi-file/scripts/sample-script.js
@@ -0,0 +1,32 @@
+// We require the Hardhat Runtime Environment explicitly here. This is optional 
+// but useful for running the script in a standalone fashion through `node <script>`.
+//
+// When running the script with `hardhat run <script>` you'll find the Hardhat
+// Runtime Environment's members available in the global scope.
+const hre = require("hardhat");
+
+async function main() {
+  // Hardhat always runs the compile task when running scripts with its command
+  // line interface.
+  //
+  // If this script is run directly using `node` you may want to call compile 
+  // manually to make sure everything is compiled
+  // await hre.run('compile');
+
+  // We get the contract to deploy
+  const A = await hre.ethers.getContractFactory("A");
+  const a = await A.deploy(100,101);
+
+  await a.deployed();
+
+  console.log("A deployed to:", a.address);
+}
+
+// We recommend this pattern to be able to use async/await everywhere
+// and properly handle errors.
+main()
+  .then(() => process.exit(0))
+  .catch(error => {
+    console.error(error);
+    process.exit(1);
+  });
diff --git a/tests/hardhat-multi-file/test/sample-test.js b/tests/hardhat-multi-file/test/sample-test.js
new file mode 100644
index 00000000..767f28af
--- /dev/null
+++ b/tests/hardhat-multi-file/test/sample-test.js
@@ -0,0 +1,14 @@
+const { expect } = require("chai");
+
+describe("example test", function() {
+  it("A", async function() {
+    const A = await ethers.getContractFactory("A");
+    const a = await A.deploy(100,101);
+    
+    await a.deployed();
+    expect(await a.sum()).to.equal(195);
+
+    await a.set(50);
+    expect(await a.sum()).to.equal(295);
+  });
+});
diff --git a/tests/process_combined_solc.js b/tests/process_combined_solc.js
new file mode 100644
index 00000000..db0811d4
--- /dev/null
+++ b/tests/process_combined_solc.js
@@ -0,0 +1,11 @@
+// Used in hardhat-multi-file and solc-multi-file tests
+// Edits the combined_solc.json output file
+// Takes only the sourceList (since the contracts themselves are unstable)
+//   and in the sourceList filenames, replaces the tmp dir location with "TMPDIR"
+
+const fs = require("fs");
+const process = require("process");
+const fileName = process.argv[2];
+const fileData = JSON.parse(fs.readFileSync(fileName));
+const toWrite = fileData.sourceList.map((s) => s.replace(process.argv[3], "TMPDIR"));
+fs.writeFileSync(fileName, JSON.stringify(toWrite));
diff --git a/tests/solc-multi-file/A.sol b/tests/solc-multi-file/A.sol
new file mode 100644
index 00000000..aac998e2
--- /dev/null
+++ b/tests/solc-multi-file/A.sol
@@ -0,0 +1,48 @@
+import "./C.sol";
+import "./E/G.sol";
+import "./I/K.sol";
+
+contract A {
+  uint256 x;
+  uint256 y;
+  uint256 z;
+  B b;
+  C c;
+  D d;
+
+  constructor(uint256 yval, uint256 zval) public {
+    x = 0;
+    y = yval;
+    z = zval;
+    b = new B();
+    c = new C(zval);
+    d = new D(zval);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+z+b.diff()+c.sum()+d.diff();
+  }
+
+  function set(uint256 xval) public {
+    x = xval;
+    c.setX(xval);
+  }
+}
+
+contract B {
+  uint256 x;
+  uint256 y;
+  G g;
+  K k;
+
+  constructor() public {
+    x = 0;
+    y = 6;
+    g = new G(x+1);
+    k = new K(x+2);
+  }
+
+  function diff() public view returns (uint256) {
+    return x-y+g.sum();
+  }
+}
diff --git a/tests/solc-multi-file/C.sol b/tests/solc-multi-file/C.sol
new file mode 100644
index 00000000..55300fb7
--- /dev/null
+++ b/tests/solc-multi-file/C.sol
@@ -0,0 +1,33 @@
+contract C {
+  uint256 x;
+  uint256 y;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y;
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+  }
+}
+
+contract D {
+  uint256 x;
+  uint256 y;
+  C c;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    c = new C(5);
+  }
+
+  function diff() public view returns (uint256) {
+    return x-y;
+  }
+}
diff --git a/tests/solc-multi-file/E/E.sol b/tests/solc-multi-file/E/E.sol
new file mode 100644
index 00000000..37d639a0
--- /dev/null
+++ b/tests/solc-multi-file/E/E.sol
@@ -0,0 +1,22 @@
+import "../C.sol";
+import "../I/I.sol";
+
+contract E {
+  uint256 x;
+  uint256 y;
+  D d;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+  }
+}
diff --git a/tests/solc-multi-file/E/G.sol b/tests/solc-multi-file/E/G.sol
new file mode 100644
index 00000000..4bea9458
--- /dev/null
+++ b/tests/solc-multi-file/E/G.sol
@@ -0,0 +1,22 @@
+import "./E.sol";
+
+contract G {
+  uint256 x;
+  uint256 y;
+  E e;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    e = new E(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(xval+1);
+  }
+}
diff --git a/tests/solc-multi-file/I/I.sol b/tests/solc-multi-file/I/I.sol
new file mode 100644
index 00000000..40e7cadf
--- /dev/null
+++ b/tests/solc-multi-file/I/I.sol
@@ -0,0 +1,25 @@
+import "../C.sol";
+import "../E/E.sol";
+
+contract I {
+  uint256 x;
+  uint256 y;
+  D d;
+  E e;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+    e = new E(yval+1);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff()+e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(y);
+  }
+}
diff --git a/tests/solc-multi-file/I/K.sol b/tests/solc-multi-file/I/K.sol
new file mode 100644
index 00000000..e557dd6a
--- /dev/null
+++ b/tests/solc-multi-file/I/K.sol
@@ -0,0 +1,22 @@
+import "./I.sol";
+
+contract K {
+  uint256 x;
+  uint256 y;
+  I i;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    i = new I(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return i.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    i.setX(xval+1);
+  }
+}
diff --git a/tests/solc-multi-file/X/X.sol b/tests/solc-multi-file/X/X.sol
new file mode 100644
index 00000000..42ff3c9d
--- /dev/null
+++ b/tests/solc-multi-file/X/X.sol
@@ -0,0 +1,25 @@
+import "../C.sol";
+import "../E/E.sol";
+
+contract X {
+  uint256 x;
+  uint256 y;
+  D d;
+  E e;
+
+  constructor(uint256 yval) public {
+    x = 0;
+    y = yval;
+    d = new D(yval);
+    e = new E(yval+1);
+  }
+
+  function sum() public view returns (uint256) {
+    return x+y+d.diff()+e.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x = xval;
+    e.setX(y);
+  }
+}
diff --git a/tests/solc-multi-file/X/Z.sol b/tests/solc-multi-file/X/Z.sol
new file mode 100644
index 00000000..57ee08dd
--- /dev/null
+++ b/tests/solc-multi-file/X/Z.sol
@@ -0,0 +1,19 @@
+import "./X.sol";
+
+contract Z {
+  uint256 y;
+  X x;
+
+  constructor(uint256 yval) public {
+    y = yval;
+    x = new X(5);
+  }
+
+  function sum() public view returns (uint256) {
+    return x.sum();
+  }
+
+  function setX(uint256 xval) public {
+    x.setX(xval+1);
+  }
+}