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Remove unneeded String() and str() calls.

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String literals in JS and Python don’t need to be coerced to strings.
This commit is contained in:
Neil Fraser
2018-09-25 12:34:45 -07:00
committed by Neil Fraser
parent 346b24aa74
commit f3a76cc288
4 changed files with 52 additions and 11 deletions
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31
generators/python/text.js
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@@ -35,6 +35,25 @@ Blockly.Python['text'] = function(block) {
return [code, Blockly.Python.ORDER_ATOMIC];
};
/**
* Enclose the provided value in 'str(...)' function.
* Leave string literals alone.
* @param {string} value Code evaluating to a value.
* @return {string} Code evaluating to a string.
* @private
*/
Blockly.Python.text.forceString_ = function(value) {
if (Blockly.Python.text.forceString_.strRegExp.test(value)) {
return value;
}
return 'str(' + value + ')';
};
/**
* Regular expression to detect a single-quoted string literal.
*/
Blockly.Python.text.forceString_.strRegExp = /^\s*'([^']|\\')*'\s*$/;
Blockly.Python['text_join'] = function(block) {
// Create a string made up of any number of elements of any type.
//Should we allow joining by '-' or ',' or any other characters?
@@ -45,15 +64,16 @@ Blockly.Python['text_join'] = function(block) {
case 1:
var element = Blockly.Python.valueToCode(block, 'ADD0',
Blockly.Python.ORDER_NONE) || '\'\'';
var code = 'str(' + element + ')';
var code = Blockly.Python.text.forceString_(element);
return [code, Blockly.Python.ORDER_FUNCTION_CALL];
break;
case 2:
var element0 = Blockly.Python.valueToCode(block, 'ADD0',
Blockly.Python.ORDER_NONE) || '\'\'';
Blockly.Python.ORDER_NONE) || '\'\'';
var element1 = Blockly.Python.valueToCode(block, 'ADD1',
Blockly.Python.ORDER_NONE) || '\'\'';
var code = 'str(' + element0 + ') + str(' + element1 + ')';
Blockly.Python.ORDER_NONE) || '\'\'';
var code = Blockly.Python.text.forceString_(element0) + ' + ' +
Blockly.Python.text.forceString_(element1);
return [code, Blockly.Python.ORDER_ADDITIVE];
break;
default:
@@ -76,7 +96,8 @@ Blockly.Python['text_append'] = function(block) {
Blockly.Variables.NAME_TYPE);
var value = Blockly.Python.valueToCode(block, 'TEXT',
Blockly.Python.ORDER_NONE) || '\'\'';
return varName + ' = str(' + varName + ') + str(' + value + ')\n';
return varName + ' = str(' + varName + ') + ' +
Blockly.Python.text.forceString_(value) + '\n';
};
Blockly.Python['text_length'] = function(block) {