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authorLeonid Logvinov <logvinov.leon@gmail.com>2018-08-09 23:03:41 +0800
committerGitHub <noreply@github.com>2018-08-09 23:03:41 +0800
commit15e15f994a1b18cf2e9be151194c826d53a01601 (patch)
tree57b6db2615875c00cb16b1c94c7be113c2a18618 /packages/base-contract/src/index.ts
parentd44ff6a91582ed2b4dc25059d52556c4f9c6e163 (diff)
parent53713188fee57391040c24cc627fdc5ab8982d2e (diff)
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Merge branch 'development' into sol-cov-fixes
Diffstat (limited to 'packages/base-contract/src/index.ts')
-rw-r--r--packages/base-contract/src/index.ts21
1 files changed, 21 insertions, 0 deletions
diff --git a/packages/base-contract/src/index.ts b/packages/base-contract/src/index.ts
index a240fb8b6..12f974445 100644
--- a/packages/base-contract/src/index.ts
+++ b/packages/base-contract/src/index.ts
@@ -82,6 +82,27 @@ export class BaseContract {
}
return txDataWithDefaults;
}
+ // Throws if the given arguments cannot be safely/correctly encoded based on
+ // the given inputAbi. An argument may not be considered safely encodeable
+ // if it overflows the corresponding Solidity type, there is a bug in the
+ // encoder, or the encoder performs unsafe type coercion.
+ public static strictArgumentEncodingCheck(inputAbi: DataItem[], args: any[]): void {
+ const coder = ethers.utils.AbiCoder.defaultCoder;
+ const params = abiUtils.parseEthersParams(inputAbi);
+ const rawEncoded = coder.encode(params.names, params.types, args);
+ const rawDecoded = coder.decode(params.names, params.types, rawEncoded);
+ for (let i = 0; i < rawDecoded.length; i++) {
+ const original = args[i];
+ const decoded = rawDecoded[i];
+ if (!abiUtils.isAbiDataEqual(params.names[i], params.types[i], original, decoded)) {
+ throw new Error(
+ `Cannot safely encode argument: ${params.names[i]} (${original}) of type ${
+ params.types[i]
+ }. (Possible type overflow or other encoding error)`,
+ );
+ }
+ }
+ }
protected _lookupEthersInterface(functionSignature: string): ethers.Interface {
const ethersInterface = this._ethersInterfacesByFunctionSignature[functionSignature];
if (_.isUndefined(ethersInterface)) {