From 0b1ba9f9971bea9003dfb30fca535c17ce62ad08 Mon Sep 17 00:00:00 2001
From: Fabio Berger <me@fabioberger.com>
Date: Tue, 6 Mar 2018 16:31:55 +0100
Subject: Move Documentation to the `@0xproject/react-docs` package

---
 .../src/ts/components/method_signature.tsx         | 128 +++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 packages/react-docs/src/ts/components/method_signature.tsx

(limited to 'packages/react-docs/src/ts/components/method_signature.tsx')

diff --git a/packages/react-docs/src/ts/components/method_signature.tsx b/packages/react-docs/src/ts/components/method_signature.tsx
new file mode 100644
index 000000000..e21d82287
--- /dev/null
+++ b/packages/react-docs/src/ts/components/method_signature.tsx
@@ -0,0 +1,128 @@
+import * as _ from 'lodash';
+import * as React from 'react';
+import * as ReactDOM from 'react-dom';
+
+import { Parameter, SolidityMethod, TypeDefinitionByName, TypescriptMethod } from '../types';
+import { constants } from '../utils/constants';
+
+import { DocsInfo } from './docs_info';
+import { Type } from './type';
+
+export interface MethodSignatureProps {
+    method: TypescriptMethod | SolidityMethod;
+    sectionName: string;
+    shouldHideMethodName?: boolean;
+    shouldUseArrowSyntax?: boolean;
+    typeDefinitionByName?: TypeDefinitionByName;
+    docsInfo: DocsInfo;
+}
+
+const defaultProps = {
+    shouldHideMethodName: false,
+    shouldUseArrowSyntax: false,
+};
+
+export const MethodSignature: React.SFC<MethodSignatureProps> = (props: MethodSignatureProps) => {
+    const sectionName = constants.TYPES_SECTION_NAME;
+    const parameters = renderParameters(props.method, props.docsInfo, sectionName, props.typeDefinitionByName);
+    const paramStringArray: any[] = [];
+    // HACK: For now we don't put params on newlines if there are less then 2 of them.
+    // Ideally we would check the character length of the resulting method signature and
+    // if it exceeds the available space, put params on their own lines.
+    const hasMoreThenTwoParams = parameters.length > 2;
+    _.each(parameters, (param: React.ReactNode, i: number) => {
+        const finalParam = hasMoreThenTwoParams ? (
+            <span className="pl2" key={`param-${i}`}>
+                {param}
+            </span>
+        ) : (
+            param
+        );
+        paramStringArray.push(finalParam);
+        const comma = hasMoreThenTwoParams ? (
+            <span key={`param-comma-${i}`}>
+                , <br />
+            </span>
+        ) : (
+            ', '
+        );
+        paramStringArray.push(comma);
+    });
+    if (!hasMoreThenTwoParams) {
+        paramStringArray.pop();
+    }
+    const methodName = props.shouldHideMethodName ? '' : props.method.name;
+    const typeParameterIfExists = _.isUndefined((props.method as TypescriptMethod).typeParameter)
+        ? undefined
+        : renderTypeParameter(props.method, props.docsInfo, sectionName, props.typeDefinitionByName);
+    return (
+        <span style={{ fontSize: 15 }}>
+            {props.method.callPath}
+            {methodName}
+            {typeParameterIfExists}({hasMoreThenTwoParams && <br />}
+            {paramStringArray})
+            {props.method.returnType && (
+                <span>
+                    {props.shouldUseArrowSyntax ? ' => ' : ': '}{' '}
+                    <Type
+                        type={props.method.returnType}
+                        sectionName={sectionName}
+                        typeDefinitionByName={props.typeDefinitionByName}
+                        docsInfo={props.docsInfo}
+                    />
+                </span>
+            )}
+        </span>
+    );
+};
+
+MethodSignature.defaultProps = defaultProps;
+
+function renderParameters(
+    method: TypescriptMethod | SolidityMethod,
+    docsInfo: DocsInfo,
+    sectionName: string,
+    typeDefinitionByName?: TypeDefinitionByName,
+) {
+    const parameters = method.parameters;
+    const params = _.map(parameters, (p: Parameter) => {
+        const isOptional = p.isOptional;
+        const type = (
+            <Type
+                type={p.type}
+                sectionName={sectionName}
+                typeDefinitionByName={typeDefinitionByName}
+                docsInfo={docsInfo}
+            />
+        );
+        return (
+            <span key={`param-${p.type}-${p.name}`}>
+                {p.name}
+                {isOptional && '?'}: {type}
+            </span>
+        );
+    });
+    return params;
+}
+
+function renderTypeParameter(
+    method: TypescriptMethod,
+    docsInfo: DocsInfo,
+    sectionName: string,
+    typeDefinitionByName?: TypeDefinitionByName,
+) {
+    const typeParameter = method.typeParameter;
+    const typeParam = (
+        <span>
+            {`<${typeParameter.name} extends `}
+            <Type
+                type={typeParameter.type}
+                sectionName={sectionName}
+                typeDefinitionByName={typeDefinitionByName}
+                docsInfo={docsInfo}
+            />
+            {`>`}
+        </span>
+    );
+    return typeParam;
+}
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