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Address PR feedback for trailing commas

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This commit is contained in:
Jason Freeman
2014-09-24 10:36:44 -07:00
parent de2ac51924
commit 3dc686028a
2 changed files with 42 additions and 40 deletions
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80
src/compiler/emitter.ts
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@@ -700,23 +700,46 @@ module ts {
}
}
function emitCommaList(nodes: Node[], count?: number) {
if (!(count >= 0)) count = nodes.length;
if (nodes) {
for (var i = 0; i < count; i++) {
if (i) write(", ");
emit(nodes[i]);
function emitTrailingCommaIfPresent(nodeList: NodeArray<Node>, isMultiline: boolean): void {
if (nodeList.hasTrailingComma) {
write(",");
if (isMultiline) {
writeLine();
}
}
}
function emitMultiLineList(nodes: Node[]) {
function emitCommaList(nodes: NodeArray<Node>, includeTrailingComma: boolean, count?: number) {
if (!(count >= 0)) {
count = nodes.length;
}
if (nodes) {
for (var i = 0; i < count; i++) {
if (i) {
write(", ");
}
emit(nodes[i]);
}
if (includeTrailingComma) {
emitTrailingCommaIfPresent(nodes, /*isMultiline*/ false);
}
}
}
function emitMultiLineList(nodes: NodeArray<Node>, includeTrailingComma: boolean) {
if (nodes) {
for (var i = 0; i < nodes.length; i++) {
if (i) write(",");
if (i) {
write(",");
}
writeLine();
emit(nodes[i]);
}
if (includeTrailingComma) {
emitTrailingCommaIfPresent(nodes, /*isMultiline*/ true);
}
}
}
@@ -824,29 +847,18 @@ module ts {
}
}
function emitTrailingCommaIfPresent(nodeList: NodeArray<Node>, isMultiline: boolean): void {
if (nodeList.hasTrailingComma) {
write(",");
if (isMultiline) {
writeLine();
}
}
}
function emitArrayLiteral(node: ArrayLiteral) {
if (node.flags & NodeFlags.MultiLine) {
write("[");
increaseIndent();
emitMultiLineList(node.elements);
emitTrailingCommaIfPresent(node.elements, /*isMultiline*/ true);
emitMultiLineList(node.elements, /*includeTrailingComma*/ true);
decreaseIndent();
writeLine();
write("]");
}
else {
write("[");
emitCommaList(node.elements);
emitTrailingCommaIfPresent(node.elements, /*isMultiline*/ false);
emitCommaList(node.elements, /*includeTrailingComma*/ true);
write("]");
}
}
@@ -858,24 +870,14 @@ module ts {
else if (node.flags & NodeFlags.MultiLine) {
write("{");
increaseIndent();
emitMultiLineList(node.properties);
if (compilerOptions.target === ScriptTarget.ES5) {
emitTrailingCommaIfPresent(node.properties, /*isMultiline*/ true);
}
emitMultiLineList(node.properties, /*includeTrailingComma*/ compilerOptions.target >= ScriptTarget.ES5);
decreaseIndent();
writeLine();
write("}");
}
else {
write("{ ");
emitCommaList(node.properties);
if (compilerOptions.target === ScriptTarget.ES5) {
emitTrailingCommaIfPresent(node.properties, /*isMultiline*/ false);
}
emitCommaList(node.properties, /*includeTrailingComma*/ compilerOptions.target >= ScriptTarget.ES5);
write(" }");
}
}
@@ -921,13 +923,13 @@ module ts {
emitThis(node.func);
if (node.arguments.length) {
write(", ");
emitCommaList(node.arguments);
emitCommaList(node.arguments, /*includeTrailingComma*/ false);
}
write(")");
}
else {
write("(");
emitCommaList(node.arguments);
emitCommaList(node.arguments, /*includeTrailingComma*/ false);
write(")");
}
}
@@ -937,7 +939,7 @@ module ts {
emit(node.func);
if (node.arguments) {
write("(");
emitCommaList(node.arguments);
emitCommaList(node.arguments, /*includeTrailingComma*/ false);
write(")");
}
}
@@ -1110,7 +1112,7 @@ module ts {
if (node.declarations) {
emitToken(SyntaxKind.VarKeyword, endPos);
write(" ");
emitCommaList(node.declarations);
emitCommaList(node.declarations, /*includeTrailingComma*/ false);
}
if (node.initializer) {
emit(node.initializer);
@@ -1258,7 +1260,7 @@ module ts {
function emitVariableStatement(node: VariableStatement) {
emitLeadingComments(node);
if (!(node.flags & NodeFlags.Export)) write("var ");
emitCommaList(node.declarations);
emitCommaList(node.declarations, /*includeTrailingComma*/ false);
write(";");
emitTrailingComments(node);
}
@@ -1367,7 +1369,7 @@ module ts {
increaseIndent();
write("(");
if (node) {
emitCommaList(node.parameters, node.parameters.length - (hasRestParameters(node) ? 1 : 0));
emitCommaList(node.parameters, /*includeTrailingComma*/ false, node.parameters.length - (hasRestParameters(node) ? 1 : 0));
}
write(")");
decreaseIndent();