Merge pull request #1305 from 0xProject/feature/contract-templates

[@0x/contract-templates] Make contract-templates an npm package

7 files changed, 112 insertions, 0 deletions

diff --git a/packages/abi-gen-templates/partials/call.handlebars b/packages/abi-gen-templates/partials/call.handlebars
new file mode 100644
index 000000000..7c9c934c3
--- /dev/null
+++ b/packages/abi-gen-templates/partials/call.handlebars
@@ -0,0 +1,3 @@
+public {{this.tsName}} = {
+    {{> callAsync}}
+};
diff --git a/packages/abi-gen-templates/partials/callAsync.handlebars b/packages/abi-gen-templates/partials/callAsync.handlebars
new file mode 100644
index 000000000..ddbbe7508
--- /dev/null
+++ b/packages/abi-gen-templates/partials/callAsync.handlebars
@@ -0,0 +1,28 @@
+async callAsync(
+{{> typed_params inputs=inputs}}
+    callData: Partial<CallData> = {},
+    defaultBlock?: BlockParam,
+): Promise<{{> return_type outputs=outputs}}> {
+    const self = this as any as {{contractName}}Contract;
+    const functionSignature = '{{this.functionSignature}}';
+    const inputAbi = self._lookupAbi(functionSignature).inputs;
+    [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
+    BaseContract.strictArgumentEncodingCheck(inputAbi, [{{> params inputs=inputs}}]);
+    const ethersFunction = self._lookupEthersInterface(functionSignature).functions.{{this.name}};
+    const encodedData = ethersFunction.encode([{{> params inputs=inputs}}]);
+    const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
+        {
+            to: self.address,
+            ...callData,
+            data: encodedData,
+        },
+        self._web3Wrapper.getContractDefaults(),
+    );
+    const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
+    BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
+    let resultArray = ethersFunction.decode(rawCallResult);
+    const outputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).outputs;
+    resultArray = BaseContract._formatABIDataItemList(outputAbi, resultArray, BaseContract._lowercaseAddress.bind(this));
+    resultArray = BaseContract._formatABIDataItemList(outputAbi, resultArray, BaseContract._bnToBigNumber.bind(this));
+    return resultArray{{#singleReturnValue}}[0]{{/singleReturnValue}};
+},
diff --git a/packages/abi-gen-templates/partials/event.handlebars b/packages/abi-gen-templates/partials/event.handlebars
new file mode 100644
index 000000000..61d523ca2
--- /dev/null
+++ b/packages/abi-gen-templates/partials/event.handlebars
@@ -0,0 +1,5 @@
+export interface {{@root.contractName}}{{name}}EventArgs extends DecodedLogArgs {
+    {{#each inputs}}
+    {{name}}: {{#returnType type components}}{{/returnType}};
+    {{/each}}
+}
diff --git a/packages/abi-gen-templates/partials/params.handlebars b/packages/abi-gen-templates/partials/params.handlebars
new file mode 100644
index 000000000..2d9bb8ed9
--- /dev/null
+++ b/packages/abi-gen-templates/partials/params.handlebars
@@ -0,0 +1,3 @@
+{{#each inputs}}
+{{name}}{{#if @last}}{{else}},{{/if}}
+{{/each}}
diff --git a/packages/abi-gen-templates/partials/return_type.handlebars b/packages/abi-gen-templates/partials/return_type.handlebars
new file mode 100644
index 000000000..77d96e8c4
--- /dev/null
+++ b/packages/abi-gen-templates/partials/return_type.handlebars
@@ -0,0 +1,10 @@
+{{#if outputs.length}}
+{{#singleReturnValue}}
+{{#returnType outputs.0.type outputs.0.components}}{{/returnType}}
+{{/singleReturnValue}}
+{{^singleReturnValue}}
+[{{#each outputs}}{{#returnType type components}}{{/returnType}}{{#unless @last}}, {{/unless}}{{/each}}]
+{{/singleReturnValue}}
+{{else}}
+void
+{{/if}}
diff --git a/packages/abi-gen-templates/partials/tx.handlebars b/packages/abi-gen-templates/partials/tx.handlebars
new file mode 100644
index 000000000..b39156583
--- /dev/null
+++ b/packages/abi-gen-templates/partials/tx.handlebars
@@ -0,0 +1,60 @@
+public {{this.tsName}} = {
+    async sendTransactionAsync(
+    {{> typed_params inputs=inputs}}
+    {{#this.payable}}
+        txData: Partial<TxDataPayable> = {},
+    {{/this.payable}}
+    {{^this.payable}}
+        txData: Partial<TxData> = {},
+    {{/this.payable}}
+    ): Promise<string> {
+        const self = this as any as {{contractName}}Contract;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
+        [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
+        BaseContract.strictArgumentEncodingCheck(inputAbi, [{{> params inputs=inputs}}]);
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}.encode([{{> params inputs=inputs}}]);
+        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
+            {
+                to: self.address,
+                ...txData,
+                data: encodedData,
+            },
+            self._web3Wrapper.getContractDefaults(),
+            self.{{this.tsName}}.estimateGasAsync.bind(
+                self,
+                {{> params inputs=inputs}}
+            ),
+        );
+        const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
+        return txHash;
+    },
+    async estimateGasAsync(
+    {{> typed_params inputs=inputs}}
+        txData: Partial<TxData> = {},
+    ): Promise<number> {
+        const self = this as any as {{contractName}}Contract;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
+        [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString);
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}.encode([{{> params inputs=inputs}}]);
+        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
+            {
+                to: self.address,
+                ...txData,
+                data: encodedData,
+            },
+            self._web3Wrapper.getContractDefaults(),
+        );
+        const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
+        return gas;
+    },
+    getABIEncodedTransactionData(
+    {{> typed_params inputs=inputs}}
+    ): string {
+        const self = this as any as {{contractName}}Contract;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
+        [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString);
+        const abiEncodedTransactionData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}.encode([{{> params inputs=inputs}}]);
+        return abiEncodedTransactionData;
+    },
+    {{> callAsync}}
+};
diff --git a/packages/abi-gen-templates/partials/typed_params.handlebars b/packages/abi-gen-templates/partials/typed_params.handlebars
new file mode 100644
index 000000000..c100e58f7
--- /dev/null
+++ b/packages/abi-gen-templates/partials/typed_params.handlebars
@@ -0,0 +1,3 @@
+{{#each inputs}}
+    {{name}}: {{#parameterType type components}}{{/parameterType}},
+{{/each}}