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Minor cleanup in getDynamicIndentation (#21240)

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This commit is contained in:
Andy
2018-01-17 14:29:19 -08:00
committed by GitHub
parent ec37651308
commit 1dcc83e6d2
1 changed files with 40 additions and 54 deletions
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94
src/services/formatting/formatting.ts
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@@ -537,70 +537,56 @@ namespace ts.formatting {
case SyntaxKind.CloseBraceToken:
case SyntaxKind.CloseBracketToken:
case SyntaxKind.CloseParenToken:
return indentation + getEffectiveDelta(delta, container);
return indentation + getDelta(container);
}
return tokenIndentation !== Constants.Unknown ? tokenIndentation : indentation;
},
getIndentationForToken: (line, kind, container) => {
if (nodeStartLine !== line && node.decorators) {
if (kind === getFirstNonDecoratorTokenOfNode(node)) {
// if this token is the first token following the list of decorators, we do not need to indent
return indentation;
}
}
switch (kind) {
// open and close brace, 'else' and 'while' (in do statement) tokens has indentation of the parent
case SyntaxKind.OpenBraceToken:
case SyntaxKind.CloseBraceToken:
case SyntaxKind.OpenParenToken:
case SyntaxKind.CloseParenToken:
case SyntaxKind.ElseKeyword:
case SyntaxKind.WhileKeyword:
case SyntaxKind.AtToken:
return indentation;
case SyntaxKind.SlashToken:
case SyntaxKind.GreaterThanToken: {
if (container.kind === SyntaxKind.JsxOpeningElement ||
container.kind === SyntaxKind.JsxClosingElement ||
container.kind === SyntaxKind.JsxSelfClosingElement
) {
return indentation;
}
break;
}
case SyntaxKind.OpenBracketToken:
case SyntaxKind.CloseBracketToken: {
if (container.kind !== SyntaxKind.MappedType) {
return indentation;
}
break;
}
}
// if token line equals to the line of containing node (this is a first token in the node) - use node indentation
return nodeStartLine !== line ? indentation + getEffectiveDelta(delta, container) : indentation;
},
getIndentationForToken: (line, kind, container) =>
shouldAddDelta(line, kind, container) ? indentation + getDelta(container) : indentation,
getIndentation: () => indentation,
getDelta: child => getEffectiveDelta(delta, child),
getDelta,
recomputeIndentation: lineAdded => {
if (node.parent && SmartIndenter.shouldIndentChildNode(node.parent, node)) {
if (lineAdded) {
indentation += options.indentSize;
}
else {
indentation -= options.indentSize;
}
if (SmartIndenter.shouldIndentChildNode(node)) {
delta = options.indentSize;
}
else {
delta = 0;
}
indentation += lineAdded ? options.indentSize : -options.indentSize;
delta = SmartIndenter.shouldIndentChildNode(node) ? options.indentSize : 0;
}
}
};
function getEffectiveDelta(delta: number, child: TextRangeWithKind) {
function shouldAddDelta(line: number, kind: SyntaxKind, container: Node): boolean {
switch (kind) {
// open and close brace, 'else' and 'while' (in do statement) tokens has indentation of the parent
case SyntaxKind.OpenBraceToken:
case SyntaxKind.CloseBraceToken:
case SyntaxKind.OpenParenToken:
case SyntaxKind.CloseParenToken:
case SyntaxKind.ElseKeyword:
case SyntaxKind.WhileKeyword:
case SyntaxKind.AtToken:
return false;
case SyntaxKind.SlashToken:
case SyntaxKind.GreaterThanToken:
switch (container.kind) {
case SyntaxKind.JsxOpeningElement:
case SyntaxKind.JsxClosingElement:
case SyntaxKind.JsxSelfClosingElement:
return false;
}
break;
case SyntaxKind.OpenBracketToken:
case SyntaxKind.CloseBracketToken:
if (container.kind !== SyntaxKind.MappedType) {
return false;
}
break;
}
// if token line equals to the line of containing node (this is a first token in the node) - use node indentation
return nodeStartLine !== line
// if this token is the first token following the list of decorators, we do not need to indent
&& !(node.decorators && kind === getFirstNonDecoratorTokenOfNode(node));
}
function getDelta(child: TextRangeWithKind) {
// Delta value should be zero when the node explicitly prevents indentation of the child node
return SmartIndenter.nodeWillIndentChild(node, child, /*indentByDefault*/ true) ? delta : 0;
}