public JsFunction mapFunction(Node fnNode) throws JsParserException {
int nodeType = fnNode.getType();
assert nodeType == TokenStream.FUNCTION
: "Expected function node, got: " + TokenStream.tokenToName(nodeType);
Node fromFnNameNode = fnNode.getFirstChild();
Node fromParamNode = fnNode.getFirstChild().getNext().getFirstChild();
Node fromBodyNode = fnNode.getFirstChild().getNext().getNext();
JsFunction toFn = scopeContext.enterFunction();
// Decide the function's name, if any.
//
String fnNameIdent = fromFnNameNode.getString();
if (fnNameIdent != null && fnNameIdent.length() > 0) {
scopeContext.globalNameFor(fnNameIdent);
}
while (fromParamNode != null) {
String fromParamName = fromParamNode.getString();
JsName name = scopeContext.localNameFor(fromParamName);
toFn.getParameters().add(new JsParameter(name));
fromParamNode = fromParamNode.getNext();
}
// Map the function's body.
//
JsBlock toBody = mapBlock(fromBodyNode);
toFn.setBody(toBody);
scopeContext.exitFunction();
return toFn;
}
private JsNode map(Node node) throws JsParserException {
switch (node.getType()) {
case TokenStream.SCRIPT:
{
JsBlock block = new JsBlock();
mapStatements(block.getStatements(), node);
return block;
}
case TokenStream.DEBUGGER:
return mapDebuggerStatement(node);
case TokenStream.VOID:
// VOID = nothing was parsed for this node
return null;
case TokenStream.EXPRSTMT:
return mapExpressionStatement(node);
case TokenStream.REGEXP:
return mapRegExp(node);
case TokenStream.ADD:
return mapBinaryOperation(JsBinaryOperator.ADD, node);
case TokenStream.SUB:
return mapBinaryOperation(JsBinaryOperator.SUB, node);
case TokenStream.MUL:
return mapBinaryOperation(JsBinaryOperator.MUL, node);
case TokenStream.DIV:
return mapBinaryOperation(JsBinaryOperator.DIV, node);
case TokenStream.MOD:
return mapBinaryOperation(JsBinaryOperator.MOD, node);
case TokenStream.AND:
return mapBinaryOperation(JsBinaryOperator.AND, node);
case TokenStream.OR:
return mapBinaryOperation(JsBinaryOperator.OR, node);
case TokenStream.BITAND:
return mapBinaryOperation(JsBinaryOperator.BIT_AND, node);
case TokenStream.BITOR:
return mapBinaryOperation(JsBinaryOperator.BIT_OR, node);
case TokenStream.BITXOR:
return mapBinaryOperation(JsBinaryOperator.BIT_XOR, node);
case TokenStream.ASSIGN:
return mapAssignmentVariant(node);
case TokenStream.RELOP:
return mapRelationalVariant(node);
case TokenStream.EQOP:
return mapEqualityVariant(node);
case TokenStream.SHOP:
return mapShiftVariant(node);
case TokenStream.UNARYOP:
return mapUnaryVariant(node);
case TokenStream.INC:
return mapIncDecFixity(JsUnaryOperator.INC, node);
case TokenStream.DEC:
return mapIncDecFixity(JsUnaryOperator.DEC, node);
case TokenStream.HOOK:
return mapConditional(node);
case TokenStream.STRING:
return program.getStringLiteral(node.getString());
case TokenStream.NUMBER_INT:
return mapIntNumber(node);
case TokenStream.NUMBER:
return mapDoubleNumber(node);
case TokenStream.CALL:
return mapCall(node);
case TokenStream.GETPROP:
return mapGetProp(node);
case TokenStream.SETPROP:
return mapSetProp(node);
case TokenStream.DELPROP:
return mapDeleteProp(node);
case TokenStream.IF:
return mapIfStatement(node);
case TokenStream.WHILE:
return mapDoOrWhileStatement(true, node);
case TokenStream.DO:
return mapDoOrWhileStatement(false, node);
case TokenStream.FOR:
return mapForStatement(node);
case TokenStream.WITH:
return mapWithStatement(node);
case TokenStream.GETELEM:
return mapGetElem(node);
case TokenStream.SETELEM:
return mapSetElem(node);
case TokenStream.FUNCTION:
return mapFunction(node);
case TokenStream.BLOCK:
return mapBlock(node);
case TokenStream.SETNAME:
return mapBinaryOperation(JsBinaryOperator.ASG, node);
case TokenStream.NAME:
case TokenStream.BINDNAME:
return scopeContext.globalNameFor(node.getString()).makeRef();
case TokenStream.RETURN:
return mapReturn(node);
case TokenStream.BREAK:
return mapBreak(node);
case TokenStream.CONTINUE:
return mapContinue(node);
case TokenStream.OBJLIT:
return mapObjectLit(node);
case TokenStream.ARRAYLIT:
return mapArrayLit(node);
case TokenStream.VAR:
return mapVar(node);
case TokenStream.PRIMARY:
return mapPrimary(node);
case TokenStream.COMMA:
return mapBinaryOperation(JsBinaryOperator.COMMA, node);
case TokenStream.NEW:
return mapNew(node);
case TokenStream.THROW:
return mapThrowStatement(node);
case TokenStream.TRY:
return mapTryStatement(node);
case TokenStream.SWITCH:
return mapSwitchStatement(node);
case TokenStream.LABEL:
return mapLabel(node);
default:
int tokenType = node.getType();
throw createParserException("Unexpected top-level token type: " + tokenType, node);
}
}
