Added customizable log levels to quiet warnings (#379).

src.ts/contract.ts

@@ -411,7 +411,6 @@ export class Contract {
                 if (address == null) { throw new Error('name not found'); }
                 return address;
             }).catch((error: Error) => {
-                console.log('ERROR: Cannot find Contract - ' + addressOrName);
                 throw error;
             }));
         } else {
@@ -429,7 +428,7 @@ export class Contract {
             if ((<any>this)[name] == null) {
                 defineReadOnly(this, name, run);
             } else {
-                console.log('WARNING: Multiple definitions for ' + name);
+                errors.warn('WARNING: Multiple definitions for ' + name);
             }
 
             if (this.functions[name] == null) {

src.ts/errors.ts

@@ -141,3 +141,28 @@ export function checkNormalize(): void {
         throwError('platform missing String.prototype.normalize', UNSUPPORTED_OPERATION, { operation: 'String.prototype.normalize', form: error.message });
     }
 }
+
+const LogLevels: { [ name: string ]: number } = { debug: 1, "default": 2, info: 2, warn: 3, error: 4, off: 5 };
+let LogLevel = LogLevels["default"];
+
+export function setLogLevel(logLevel: string): void {
+    let level = LogLevels[logLevel];
+    if (level == null) {
+        warn("invliad log level - " + logLevel);
+        return;
+    }
+    LogLevel = level;
+}
+
+function log(logLevel: string, args: Array<any>): void {
+    if (LogLevel > LogLevels[logLevel]) { return; }
+    console.log.apply(console, args);
+}
+
+export function warn(...args: Array<any>): void {
+    log("warn", args);
+}
+
+export function info(...args: Array<any>): void {
+    log("info", args);
+}

src.ts/providers/base-provider.ts

@@ -1224,7 +1224,7 @@ export class BaseProvider extends Provider {
     }
 
     protected _startPending(): void {
-        console.log('WARNING: this provider does not support pending events');
+        errors.warn('WARNING: this provider does not support pending events');
     }
 
     protected _stopPending(): void {

src.ts/providers/infura-provider.ts

@@ -41,7 +41,7 @@ export class InfuraProvider extends JsonRpcProvider {
     }
 
     protected _startPending(): void {
-        console.log('WARNING: INFURA does not support pending filters');
+        errors.warn('WARNING: INFURA does not support pending filters');
     }
 
     getSigner(address?: string): JsonRpcSigner {

src.ts/utils/abi-coder.ts

@@ -266,7 +266,7 @@ function parseSignatureEvent(fragment: string): EventFragment {
             case '':
                 break;
             default:
-                console.log('unknown modifier: ' + modifier);
+                errors.info('unknown modifier: ' + modifier);
         }
     });
 
@@ -336,7 +336,7 @@ function parseSignatureFunction(fragment: string): FunctionFragment {
             case '':
                 break;
             default:
-                console.log('unknown modifier: ' + modifier);
+                errors.info('unknown modifier: ' + modifier);
         }
     });
 

src.ts/utils/interface.ts

@@ -325,9 +325,13 @@ function addMethod(method: any): void {
                 sighash: sighash,
             });
 
-            // Expose the first (and hopefully unique named function
-            if (method.name && this.functions[method.name] == null) {
-                defineReadOnly(this.functions, method.name, description);
+            // Expose the first (and hopefully unique named function)
+            if (method.name) {
+                if (this.functions[method.name] == null) {
+                    defineReadOnly(this.functions, method.name, description);
+                } else {
+                    errors.warn('WARNING: Multiple definitions for ' + method.name);
+                }
             }
 
             // Expose all methods by their signature, for overloaded functions
@@ -368,7 +372,7 @@ function addMethod(method: any): void {
             break;
 
         default:
-            console.log('WARNING: unsupported ABI type - ' + method.type);
+            errors.warn('WARNING: unsupported ABI type - ' + method.type);
             break;
     }
 }

src.ts/utils/transaction.ts

@@ -162,7 +162,7 @@ export function parse(rawTransaction: Arrayish): Transaction {
         tx.v = bigNumberify(transaction[6]).toNumber();
 
     } catch (error) {
-        console.log(error);
+        errors.info(error);
         return tx;
     }
 
@@ -195,7 +195,7 @@ export function parse(rawTransaction: Arrayish): Transaction {
         try {
             tx.from = recoverAddress(digest, { r: hexlify(tx.r), s: hexlify(tx.s), recoveryParam: recoveryParam });
         } catch (error) {
-            console.log(error);
+            errors.info(error);
         }
 
         tx.hash = keccak256(rawTransaction);