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Copy pathbreakpoints.ts
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729 lines (603 loc) · 36.6 KB
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// Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0.
// See LICENSE.txt in the project root for complete license information.
/// <reference path='services.ts' />
/* @internal */
namespace ts.BreakpointResolver {
/**
* Get the breakpoint span in given sourceFile
*/
export function spanInSourceFileAtLocation(sourceFile: SourceFile, position: number) {
// Cannot set breakpoint in dts file
if (sourceFile.isDeclarationFile) {
return undefined;
}
let tokenAtLocation = getTokenAtPosition(sourceFile, position, /*includeJsDocComment*/ false);
const lineOfPosition = sourceFile.getLineAndCharacterOfPosition(position).line;
if (sourceFile.getLineAndCharacterOfPosition(tokenAtLocation.getStart(sourceFile)).line > lineOfPosition) {
// Get previous token if the token is returned starts on new line
// eg: let x =10; |--- cursor is here
// let y = 10;
// token at position will return let keyword on second line as the token but we would like to use
// token on same line if trailing trivia (comments or white spaces on same line) part of the last token on that line
tokenAtLocation = findPrecedingToken(tokenAtLocation.pos, sourceFile);
// It's a blank line
if (!tokenAtLocation || sourceFile.getLineAndCharacterOfPosition(tokenAtLocation.getEnd()).line !== lineOfPosition) {
return undefined;
}
}
// Cannot set breakpoint in ambient declarations
if (isInAmbientContext(tokenAtLocation)) {
return undefined;
}
// Get the span in the node based on its syntax
return spanInNode(tokenAtLocation);
function textSpan(startNode: Node, endNode?: Node) {
const start = startNode.decorators ?
skipTrivia(sourceFile.text, startNode.decorators.end) :
startNode.getStart(sourceFile);
return createTextSpanFromBounds(start, (endNode || startNode).getEnd());
}
function textSpanEndingAtNextToken(startNode: Node, previousTokenToFindNextEndToken: Node): TextSpan {
return textSpan(startNode, findNextToken(previousTokenToFindNextEndToken, previousTokenToFindNextEndToken.parent));
}
function spanInNodeIfStartsOnSameLine(node: Node, otherwiseOnNode?: Node): TextSpan {
if (node && lineOfPosition === sourceFile.getLineAndCharacterOfPosition(node.getStart(sourceFile)).line) {
return spanInNode(node);
}
return spanInNode(otherwiseOnNode);
}
function spanInNodeArray<T extends Node>(nodeArray: NodeArray<T>) {
return createTextSpanFromBounds(skipTrivia(sourceFile.text, nodeArray.pos), nodeArray.end);
}
function spanInPreviousNode(node: Node): TextSpan {
return spanInNode(findPrecedingToken(node.pos, sourceFile));
}
function spanInNextNode(node: Node): TextSpan {
return spanInNode(findNextToken(node, node.parent));
}
function spanInNode(node: Node): TextSpan {
if (node) {
switch (node.kind) {
case SyntaxKind.VariableStatement:
// Span on first variable declaration
return spanInVariableDeclaration((<VariableStatement>node).declarationList.declarations[0]);
case SyntaxKind.VariableDeclaration:
case SyntaxKind.PropertyDeclaration:
case SyntaxKind.PropertySignature:
return spanInVariableDeclaration(<VariableDeclaration>node);
case SyntaxKind.Parameter:
return spanInParameterDeclaration(<ParameterDeclaration>node);
case SyntaxKind.FunctionDeclaration:
case SyntaxKind.MethodDeclaration:
case SyntaxKind.MethodSignature:
case SyntaxKind.GetAccessor:
case SyntaxKind.SetAccessor:
case SyntaxKind.Constructor:
case SyntaxKind.FunctionExpression:
case SyntaxKind.ArrowFunction:
return spanInFunctionDeclaration(<FunctionLikeDeclaration>node);
case SyntaxKind.Block:
if (isFunctionBlock(node)) {
return spanInFunctionBlock(<Block>node);
}
// falls through
case SyntaxKind.ModuleBlock:
return spanInBlock(<Block>node);
case SyntaxKind.CatchClause:
return spanInBlock((<CatchClause>node).block);
case SyntaxKind.ExpressionStatement:
// span on the expression
return textSpan((<ExpressionStatement>node).expression);
case SyntaxKind.ReturnStatement:
// span on return keyword and expression if present
return textSpan(node.getChildAt(0), (<ReturnStatement>node).expression);
case SyntaxKind.WhileStatement:
// Span on while(...)
return textSpanEndingAtNextToken(node, (<WhileStatement>node).expression);
case SyntaxKind.DoStatement:
// span in statement of the do statement
return spanInNode((<DoStatement>node).statement);
case SyntaxKind.DebuggerStatement:
// span on debugger keyword
return textSpan(node.getChildAt(0));
case SyntaxKind.IfStatement:
// set on if(..) span
return textSpanEndingAtNextToken(node, (<IfStatement>node).expression);
case SyntaxKind.LabeledStatement:
// span in statement
return spanInNode((<LabeledStatement>node).statement);
case SyntaxKind.BreakStatement:
case SyntaxKind.ContinueStatement:
// On break or continue keyword and label if present
return textSpan(node.getChildAt(0), (<BreakOrContinueStatement>node).label);
case SyntaxKind.ForStatement:
return spanInForStatement(<ForStatement>node);
case SyntaxKind.ForInStatement:
// span of for (a in ...)
return textSpanEndingAtNextToken(node, (<ForInStatement>node).expression);
case SyntaxKind.ForOfStatement:
// span in initializer
return spanInInitializerOfForLike(<ForOfStatement>node);
case SyntaxKind.SwitchStatement:
// span on switch(...)
return textSpanEndingAtNextToken(node, (<SwitchStatement>node).expression);
case SyntaxKind.CaseClause:
case SyntaxKind.DefaultClause:
// span in first statement of the clause
return spanInNode((<CaseOrDefaultClause>node).statements[0]);
case SyntaxKind.TryStatement:
// span in try block
return spanInBlock((<TryStatement>node).tryBlock);
case SyntaxKind.ThrowStatement:
// span in throw ...
return textSpan(node, (<ThrowStatement>node).expression);
case SyntaxKind.ExportAssignment:
// span on export = id
return textSpan(node, (<ExportAssignment>node).expression);
case SyntaxKind.ImportEqualsDeclaration:
// import statement without including semicolon
return textSpan(node, (<ImportEqualsDeclaration>node).moduleReference);
case SyntaxKind.ImportDeclaration:
// import statement without including semicolon
return textSpan(node, (<ImportDeclaration>node).moduleSpecifier);
case SyntaxKind.ExportDeclaration:
// import statement without including semicolon
return textSpan(node, (<ExportDeclaration>node).moduleSpecifier);
case SyntaxKind.ModuleDeclaration:
// span on complete module if it is instantiated
if (getModuleInstanceState(node) !== ModuleInstanceState.Instantiated) {
return undefined;
}
// falls through
case SyntaxKind.ClassDeclaration:
case SyntaxKind.EnumDeclaration:
case SyntaxKind.EnumMember:
case SyntaxKind.BindingElement:
// span on complete node
return textSpan(node);
case SyntaxKind.WithStatement:
// span in statement
return spanInNode((<WithStatement>node).statement);
case SyntaxKind.Decorator:
return spanInNodeArray(node.parent.decorators);
case SyntaxKind.ObjectBindingPattern:
case SyntaxKind.ArrayBindingPattern:
return spanInBindingPattern(<BindingPattern>node);
// No breakpoint in interface, type alias
case SyntaxKind.InterfaceDeclaration:
case SyntaxKind.TypeAliasDeclaration:
return undefined;
// Tokens:
case SyntaxKind.SemicolonToken:
case SyntaxKind.EndOfFileToken:
return spanInNodeIfStartsOnSameLine(findPrecedingToken(node.pos, sourceFile));
case SyntaxKind.CommaToken:
return spanInPreviousNode(node);
case SyntaxKind.OpenBraceToken:
return spanInOpenBraceToken(node);
case SyntaxKind.CloseBraceToken:
return spanInCloseBraceToken(node);
case SyntaxKind.CloseBracketToken:
return spanInCloseBracketToken(node);
case SyntaxKind.OpenParenToken:
return spanInOpenParenToken(node);
case SyntaxKind.CloseParenToken:
return spanInCloseParenToken(node);
case SyntaxKind.ColonToken:
return spanInColonToken(node);
case SyntaxKind.GreaterThanToken:
case SyntaxKind.LessThanToken:
return spanInGreaterThanOrLessThanToken(node);
// Keywords:
case SyntaxKind.WhileKeyword:
return spanInWhileKeyword(node);
case SyntaxKind.ElseKeyword:
case SyntaxKind.CatchKeyword:
case SyntaxKind.FinallyKeyword:
return spanInNextNode(node);
case SyntaxKind.OfKeyword:
return spanInOfKeyword(node);
default:
// Destructuring pattern in destructuring assignment
// [a, b, c] of
// [a, b, c] = expression
if (isArrayLiteralOrObjectLiteralDestructuringPattern(node)) {
return spanInArrayLiteralOrObjectLiteralDestructuringPattern(<DestructuringPattern>node);
}
// Set breakpoint on identifier element of destructuring pattern
// a or ...c or d: x from
// [a, b, ...c] or { a, b } or { d: x } from destructuring pattern
if ((node.kind === SyntaxKind.Identifier ||
node.kind === SyntaxKind.SpreadElement ||
node.kind === SyntaxKind.PropertyAssignment ||
node.kind === SyntaxKind.ShorthandPropertyAssignment) &&
isArrayLiteralOrObjectLiteralDestructuringPattern(node.parent)) {
return textSpan(node);
}
if (node.kind === SyntaxKind.BinaryExpression) {
const binaryExpression = <BinaryExpression>node;
// Set breakpoint in destructuring pattern if its destructuring assignment
// [a, b, c] or {a, b, c} of
// [a, b, c] = expression or
// {a, b, c} = expression
if (isArrayLiteralOrObjectLiteralDestructuringPattern(binaryExpression.left)) {
return spanInArrayLiteralOrObjectLiteralDestructuringPattern(
<ArrayLiteralExpression | ObjectLiteralExpression>binaryExpression.left);
}
if (binaryExpression.operatorToken.kind === SyntaxKind.EqualsToken &&
isArrayLiteralOrObjectLiteralDestructuringPattern(binaryExpression.parent)) {
// Set breakpoint on assignment expression element of destructuring pattern
// a = expression of
// [a = expression, b, c] = someExpression or
// { a = expression, b, c } = someExpression
return textSpan(node);
}
if (binaryExpression.operatorToken.kind === SyntaxKind.CommaToken) {
return spanInNode(binaryExpression.left);
}
}
if (isPartOfExpression(node)) {
switch (node.parent.kind) {
case SyntaxKind.DoStatement:
// Set span as if on while keyword
return spanInPreviousNode(node);
case SyntaxKind.Decorator:
// Set breakpoint on the decorator emit
return spanInNode(node.parent);
case SyntaxKind.ForStatement:
case SyntaxKind.ForOfStatement:
return textSpan(node);
case SyntaxKind.BinaryExpression:
if ((<BinaryExpression>node.parent).operatorToken.kind === SyntaxKind.CommaToken) {
// If this is a comma expression, the breakpoint is possible in this expression
return textSpan(node);
}
break;
case SyntaxKind.ArrowFunction:
if ((<FunctionLikeDeclaration>node.parent).body === node) {
// If this is body of arrow function, it is allowed to have the breakpoint
return textSpan(node);
}
break;
}
}
// If this is name of property assignment, set breakpoint in the initializer
if (node.parent.kind === SyntaxKind.PropertyAssignment &&
(<PropertyDeclaration>node.parent).name === node &&
!isArrayLiteralOrObjectLiteralDestructuringPattern(node.parent.parent)) {
return spanInNode((<PropertyDeclaration>node.parent).initializer);
}
// Breakpoint in type assertion goes to its operand
if (node.parent.kind === SyntaxKind.TypeAssertionExpression && (<TypeAssertion>node.parent).type === node) {
return spanInNextNode((<TypeAssertion>node.parent).type);
}
// return type of function go to previous token
if (isFunctionLike(node.parent) && (<FunctionLikeDeclaration>node.parent).type === node) {
return spanInPreviousNode(node);
}
// initializer of variable/parameter declaration go to previous node
if ((node.parent.kind === SyntaxKind.VariableDeclaration ||
node.parent.kind === SyntaxKind.Parameter)) {
const paramOrVarDecl = <VariableDeclaration | ParameterDeclaration>node.parent;
if (paramOrVarDecl.initializer === node ||
paramOrVarDecl.type === node ||
isAssignmentOperator(node.kind)) {
return spanInPreviousNode(node);
}
}
if (node.parent.kind === SyntaxKind.BinaryExpression) {
const binaryExpression = <BinaryExpression>node.parent;
if (isArrayLiteralOrObjectLiteralDestructuringPattern(binaryExpression.left) &&
(binaryExpression.right === node ||
binaryExpression.operatorToken === node)) {
// If initializer of destructuring assignment move to previous token
return spanInPreviousNode(node);
}
}
// Default go to parent to set the breakpoint
return spanInNode(node.parent);
}
}
function textSpanFromVariableDeclaration(variableDeclaration: VariableDeclaration): TextSpan {
if (variableDeclaration.parent.kind === SyntaxKind.VariableDeclarationList &&
variableDeclaration.parent.declarations[0] === variableDeclaration) {
// First declaration - include let keyword
return textSpan(findPrecedingToken(variableDeclaration.pos, sourceFile, variableDeclaration.parent), variableDeclaration);
}
else {
// Span only on this declaration
return textSpan(variableDeclaration);
}
}
function spanInVariableDeclaration(variableDeclaration: VariableDeclaration): TextSpan {
// If declaration of for in statement, just set the span in parent
if (variableDeclaration.parent.parent.kind === SyntaxKind.ForInStatement) {
return spanInNode(variableDeclaration.parent.parent);
}
// If this is a destructuring pattern, set breakpoint in binding pattern
if (isBindingPattern(variableDeclaration.name)) {
return spanInBindingPattern(<BindingPattern>variableDeclaration.name);
}
// Breakpoint is possible in variableDeclaration only if there is initialization
// or its declaration from 'for of'
if (variableDeclaration.initializer ||
hasModifier(variableDeclaration, ModifierFlags.Export) ||
variableDeclaration.parent.parent.kind === SyntaxKind.ForOfStatement) {
return textSpanFromVariableDeclaration(variableDeclaration);
}
if (variableDeclaration.parent.kind === SyntaxKind.VariableDeclarationList &&
variableDeclaration.parent.declarations[0] !== variableDeclaration) {
// If we cannot set breakpoint on this declaration, set it on previous one
// Because the variable declaration may be binding pattern and
// we would like to set breakpoint in last binding element if that's the case,
// use preceding token instead
return spanInNode(findPrecedingToken(variableDeclaration.pos, sourceFile, variableDeclaration.parent));
}
}
function canHaveSpanInParameterDeclaration(parameter: ParameterDeclaration): boolean {
// Breakpoint is possible on parameter only if it has initializer, is a rest parameter, or has public or private modifier
return !!parameter.initializer || parameter.dotDotDotToken !== undefined ||
hasModifier(parameter, ModifierFlags.Public | ModifierFlags.Private);
}
function spanInParameterDeclaration(parameter: ParameterDeclaration): TextSpan {
if (isBindingPattern(parameter.name)) {
// Set breakpoint in binding pattern
return spanInBindingPattern(<BindingPattern>parameter.name);
}
else if (canHaveSpanInParameterDeclaration(parameter)) {
return textSpan(parameter);
}
else {
const functionDeclaration = <FunctionLikeDeclaration>parameter.parent;
const indexOfParameter = indexOf(functionDeclaration.parameters, parameter);
if (indexOfParameter) {
// Not a first parameter, go to previous parameter
return spanInParameterDeclaration(functionDeclaration.parameters[indexOfParameter - 1]);
}
else {
// Set breakpoint in the function declaration body
return spanInNode(functionDeclaration.body);
}
}
}
function canFunctionHaveSpanInWholeDeclaration(functionDeclaration: FunctionLikeDeclaration) {
return hasModifier(functionDeclaration, ModifierFlags.Export) ||
(functionDeclaration.parent.kind === SyntaxKind.ClassDeclaration && functionDeclaration.kind !== SyntaxKind.Constructor);
}
function spanInFunctionDeclaration(functionDeclaration: FunctionLikeDeclaration): TextSpan {
// No breakpoints in the function signature
if (!functionDeclaration.body) {
return undefined;
}
if (canFunctionHaveSpanInWholeDeclaration(functionDeclaration)) {
// Set the span on whole function declaration
return textSpan(functionDeclaration);
}
// Set span in function body
return spanInNode(functionDeclaration.body);
}
function spanInFunctionBlock(block: Block): TextSpan {
const nodeForSpanInBlock = block.statements.length ? block.statements[0] : block.getLastToken();
if (canFunctionHaveSpanInWholeDeclaration(<FunctionLikeDeclaration>block.parent)) {
return spanInNodeIfStartsOnSameLine(block.parent, nodeForSpanInBlock);
}
return spanInNode(nodeForSpanInBlock);
}
function spanInBlock(block: Block): TextSpan {
switch (block.parent.kind) {
case SyntaxKind.ModuleDeclaration:
if (getModuleInstanceState(block.parent) !== ModuleInstanceState.Instantiated) {
return undefined;
}
// falls through
// Set on parent if on same line otherwise on first statement
case SyntaxKind.WhileStatement:
case SyntaxKind.IfStatement:
case SyntaxKind.ForInStatement:
return spanInNodeIfStartsOnSameLine(block.parent, block.statements[0]);
// Set span on previous token if it starts on same line otherwise on the first statement of the block
case SyntaxKind.ForStatement:
case SyntaxKind.ForOfStatement:
return spanInNodeIfStartsOnSameLine(findPrecedingToken(block.pos, sourceFile, block.parent), block.statements[0]);
}
// Default action is to set on first statement
return spanInNode(block.statements[0]);
}
function spanInInitializerOfForLike(forLikeStatement: ForStatement | ForOfStatement | ForInStatement): TextSpan {
if (forLikeStatement.initializer.kind === SyntaxKind.VariableDeclarationList) {
// Declaration list - set breakpoint in first declaration
const variableDeclarationList = <VariableDeclarationList>forLikeStatement.initializer;
if (variableDeclarationList.declarations.length > 0) {
return spanInNode(variableDeclarationList.declarations[0]);
}
}
else {
// Expression - set breakpoint in it
return spanInNode(forLikeStatement.initializer);
}
}
function spanInForStatement(forStatement: ForStatement): TextSpan {
if (forStatement.initializer) {
return spanInInitializerOfForLike(forStatement);
}
if (forStatement.condition) {
return textSpan(forStatement.condition);
}
if (forStatement.incrementor) {
return textSpan(forStatement.incrementor);
}
}
function spanInBindingPattern(bindingPattern: BindingPattern): TextSpan {
// Set breakpoint in first binding element
const firstBindingElement = forEach(bindingPattern.elements,
element => element.kind !== SyntaxKind.OmittedExpression ? element : undefined);
if (firstBindingElement) {
return spanInNode(firstBindingElement);
}
// Empty binding pattern of binding element, set breakpoint on binding element
if (bindingPattern.parent.kind === SyntaxKind.BindingElement) {
return textSpan(bindingPattern.parent);
}
// Variable declaration is used as the span
return textSpanFromVariableDeclaration(<VariableDeclaration>bindingPattern.parent);
}
function spanInArrayLiteralOrObjectLiteralDestructuringPattern(node: DestructuringPattern): TextSpan {
Debug.assert(node.kind !== SyntaxKind.ArrayBindingPattern && node.kind !== SyntaxKind.ObjectBindingPattern);
const elements: NodeArray<Expression | ObjectLiteralElement> =
node.kind === SyntaxKind.ArrayLiteralExpression ?
(<ArrayLiteralExpression>node).elements :
(<ObjectLiteralExpression>node).properties;
const firstBindingElement = forEach(elements,
element => element.kind !== SyntaxKind.OmittedExpression ? element : undefined);
if (firstBindingElement) {
return spanInNode(firstBindingElement);
}
// Could be ArrayLiteral from destructuring assignment or
// just nested element in another destructuring assignment
// set breakpoint on assignment when parent is destructuring assignment
// Otherwise set breakpoint for this element
return textSpan(node.parent.kind === SyntaxKind.BinaryExpression ? node.parent : node);
}
// Tokens:
function spanInOpenBraceToken(node: Node): TextSpan {
switch (node.parent.kind) {
case SyntaxKind.EnumDeclaration:
const enumDeclaration = <EnumDeclaration>node.parent;
return spanInNodeIfStartsOnSameLine(findPrecedingToken(node.pos, sourceFile, node.parent), enumDeclaration.members.length ? enumDeclaration.members[0] : enumDeclaration.getLastToken(sourceFile));
case SyntaxKind.ClassDeclaration:
const classDeclaration = <ClassDeclaration>node.parent;
return spanInNodeIfStartsOnSameLine(findPrecedingToken(node.pos, sourceFile, node.parent), classDeclaration.members.length ? classDeclaration.members[0] : classDeclaration.getLastToken(sourceFile));
case SyntaxKind.CaseBlock:
return spanInNodeIfStartsOnSameLine(node.parent.parent, (<CaseBlock>node.parent).clauses[0]);
}
// Default to parent node
return spanInNode(node.parent);
}
function spanInCloseBraceToken(node: Node): TextSpan {
switch (node.parent.kind) {
case SyntaxKind.ModuleBlock:
// If this is not an instantiated module block, no bp span
if (getModuleInstanceState(node.parent.parent) !== ModuleInstanceState.Instantiated) {
return undefined;
}
// falls through
case SyntaxKind.EnumDeclaration:
case SyntaxKind.ClassDeclaration:
// Span on close brace token
return textSpan(node);
case SyntaxKind.Block:
if (isFunctionBlock(node.parent)) {
// Span on close brace token
return textSpan(node);
}
// falls through
case SyntaxKind.CatchClause:
return spanInNode(lastOrUndefined((<Block>node.parent).statements));
case SyntaxKind.CaseBlock:
// breakpoint in last statement of the last clause
const caseBlock = <CaseBlock>node.parent;
const lastClause = lastOrUndefined(caseBlock.clauses);
if (lastClause) {
return spanInNode(lastOrUndefined(lastClause.statements));
}
return undefined;
case SyntaxKind.ObjectBindingPattern:
// Breakpoint in last binding element or binding pattern if it contains no elements
const bindingPattern = <BindingPattern>node.parent;
return spanInNode(lastOrUndefined(bindingPattern.elements) || bindingPattern);
// Default to parent node
default:
if (isArrayLiteralOrObjectLiteralDestructuringPattern(node.parent)) {
// Breakpoint in last binding element or binding pattern if it contains no elements
const objectLiteral = <ObjectLiteralExpression>node.parent;
return textSpan(lastOrUndefined(objectLiteral.properties) || objectLiteral);
}
return spanInNode(node.parent);
}
}
function spanInCloseBracketToken(node: Node): TextSpan {
switch (node.parent.kind) {
case SyntaxKind.ArrayBindingPattern:
// Breakpoint in last binding element or binding pattern if it contains no elements
const bindingPattern = <BindingPattern>node.parent;
return textSpan(lastOrUndefined(bindingPattern.elements) || bindingPattern);
default:
if (isArrayLiteralOrObjectLiteralDestructuringPattern(node.parent)) {
// Breakpoint in last binding element or binding pattern if it contains no elements
const arrayLiteral = <ArrayLiteralExpression>node.parent;
return textSpan(lastOrUndefined(arrayLiteral.elements) || arrayLiteral);
}
// Default to parent node
return spanInNode(node.parent);
}
}
function spanInOpenParenToken(node: Node): TextSpan {
if (node.parent.kind === SyntaxKind.DoStatement || // Go to while keyword and do action instead
node.parent.kind === SyntaxKind.CallExpression ||
node.parent.kind === SyntaxKind.NewExpression) {
return spanInPreviousNode(node);
}
if (node.parent.kind === SyntaxKind.ParenthesizedExpression) {
return spanInNextNode(node);
}
// Default to parent node
return spanInNode(node.parent);
}
function spanInCloseParenToken(node: Node): TextSpan {
// Is this close paren token of parameter list, set span in previous token
switch (node.parent.kind) {
case SyntaxKind.FunctionExpression:
case SyntaxKind.FunctionDeclaration:
case SyntaxKind.ArrowFunction:
case SyntaxKind.MethodDeclaration:
case SyntaxKind.MethodSignature:
case SyntaxKind.GetAccessor:
case SyntaxKind.SetAccessor:
case SyntaxKind.Constructor:
case SyntaxKind.WhileStatement:
case SyntaxKind.DoStatement:
case SyntaxKind.ForStatement:
case SyntaxKind.ForOfStatement:
case SyntaxKind.CallExpression:
case SyntaxKind.NewExpression:
case SyntaxKind.ParenthesizedExpression:
return spanInPreviousNode(node);
// Default to parent node
default:
return spanInNode(node.parent);
}
}
function spanInColonToken(node: Node): TextSpan {
// Is this : specifying return annotation of the function declaration
if (isFunctionLike(node.parent) ||
node.parent.kind === SyntaxKind.PropertyAssignment ||
node.parent.kind === SyntaxKind.Parameter) {
return spanInPreviousNode(node);
}
return spanInNode(node.parent);
}
function spanInGreaterThanOrLessThanToken(node: Node): TextSpan {
if (node.parent.kind === SyntaxKind.TypeAssertionExpression) {
return spanInNextNode(node);
}
return spanInNode(node.parent);
}
function spanInWhileKeyword(node: Node): TextSpan {
if (node.parent.kind === SyntaxKind.DoStatement) {
// Set span on while expression
return textSpanEndingAtNextToken(node, (<DoStatement>node.parent).expression);
}
// Default to parent node
return spanInNode(node.parent);
}
function spanInOfKeyword(node: Node): TextSpan {
if (node.parent.kind === SyntaxKind.ForOfStatement) {
// Set using next token
return spanInNextNode(node);
}
// Default to parent node
return spanInNode(node.parent);
}
}
}
}
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