/
xs6Syntaxical.c
3220 lines (3096 loc) · 103 KB
/
xs6Syntaxical.c
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/*
* Copyright (C) 2010-2016 Marvell International Ltd.
* Copyright (C) 2002-2010 Kinoma, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "xs6Script.h"
static void fxMatchToken(txParser* parser, txToken theToken);
static txNode* fxPopNode(txParser* parser);
static void fxPushNode(txParser* parser, txNode* node);
static void fxPushIndexNode(txParser* parser, txIndex value, txInteger line);
static void fxPushIntegerNode(txParser* parser, txInteger value, txInteger line);
static void fxPushNodeStruct(txParser* parser, txInteger count, txToken token, txInteger line);
static void fxPushNodeList(txParser* parser, txInteger count);
static void fxPushNULL(txParser* parser);
static void fxPushNumberNode(txParser* parser, txNumber value, txInteger line);
static void fxPushStringNode(txParser* parser, txInteger length, txString value, txInteger line);
static void fxPushSymbol(txParser* parser, txSymbol* symbol);
static void fxSwapNodes(txParser* parser);
static void fxExport(txParser* parser);
static void fxImport(txParser* parser);
static void fxSpecifiers(txParser* parser);
static void fxBody(txParser* parser);
static void fxStatements(txParser* parser);
static void fxBlock(txParser* parser);
static void fxStatement(txParser* parser, txBoolean blockIt);
static void fxSemicolon(txParser* parser);
static void fxBreakStatement(txParser* parser);
static void fxContinueStatement(txParser* parser);
static void fxDebuggerStatement(txParser* parser);
static void fxDoStatement(txParser* parser);
static void fxForStatement(txParser* parser);
static void fxIfStatement(txParser* parser);
static void fxReturnStatement(txParser* parser);
static void fxSwitchStatement(txParser* parser);
static void fxThrowStatement(txParser* parser);
static void fxTryStatement(txParser* parser);
static void fxVariableStatement(txParser* parser, txToken theToken);
static void fxWhileStatement(txParser* parser);
static void fxWithStatement(txParser* parser);
static void fxCommaExpression(txParser* parser);
static void fxAssignmentExpression(txParser* parser);
static void fxConditionalExpression(txParser* parser);
static void fxOrExpression(txParser* parser);
static void fxAndExpression(txParser* parser);
static void fxBitOrExpression(txParser* parser);
static void fxBitXorExpression(txParser* parser);
static void fxBitAndExpression(txParser* parser);
static void fxEqualExpression(txParser* parser);
static void fxRelationalExpression(txParser* parser);
static void fxShiftExpression(txParser* parser);
static void fxAdditiveExpression(txParser* parser);
static void fxMultiplicativeExpression(txParser* parser);
static void fxExponentiationExpression(txParser* parser);
static void fxPrefixExpression(txParser* parser);
static void fxPostfixExpression(txParser* parser);
static void fxCallExpression(txParser* parser);
static void fxLiteralExpression(txParser* parser);
static void fxArrayExpression(txParser* parser);
static void fxArrowExpression(txParser* parser);
static void fxClassExpression(txParser* parser, txInteger theLine, txSymbol** theSymbol);
static void fxFunctionExpression(txParser* parser, txInteger theLine, txSymbol** theSymbol, txUnsigned flag);
static void fxGeneratorExpression(txParser* parser, txInteger theLine, txSymbol** theSymbol);
static void fxGroupExpression(txParser* parser);
static void fxObjectExpression(txParser* parser);
static void fxNewExpression(txParser* parser);
static void fxTemplateExpression(txParser* parser);
static void fxYieldExpression(txParser* parser);
static void fxParameters(txParser* parser);
static void fxPropertyName(txParser* parser, txSymbol** theSymbol, txToken* theToken, txToken* theToken2);
static void fxBinding(txParser* parser, txToken theToken, txFlag initializeIt);
static txNode* fxBindingFromExpression(txParser* parser, txNode* theNode, txToken theToken);
static void fxArrayBinding(txParser* parser, txToken theToken);
static txNode* fxArrayBindingFromExpression(txParser* parser, txNode* theNode, txToken theToken);
static void fxObjectBinding(txParser* parser, txToken theToken);
static txNode* fxObjectBindingFromExpression(txParser* parser, txNode* theNode, txToken theToken);
static void fxParametersBinding(txParser* parser);
static txNode* fxParametersBindingFromExpressions(txParser* parser, txNode* theNode);
static void fxRestBinding(txParser* parser, txToken theToken);
static void fxCheckReference(txParser* parser, txToken theToken);
static void fxCheckStrictBinding(txParser* parser, txNode* node);
static void fxCheckStrictFunction(txParser* parser, txFunctionNode* function);
static void fxCheckStrictSymbol(txParser* parser, txSymbol* symbol);
static void fxCheckUniqueProperty(txParser* parser, txNode* base, txNode* current);
static void fxCheckUniquePropertyAux(txParser* parser, txNode* baseNode, txNode* currentNode);
static void fxJSONObject(txParser* parser);
static void fxJSONArray(txParser* parser);
#define XS_TOKEN_BEGIN_STATEMENT 1
#define XS_TOKEN_BEGIN_EXPRESSION 2
#define XS_TOKEN_ASSIGN_EXPRESSION 4
#define XS_TOKEN_EQUAL_EXPRESSION 8
#define XS_TOKEN_RELATIONAL_EXPRESSION 16
#define XS_TOKEN_SHIFT_EXPRESSION 32
#define XS_TOKEN_ADDITIVE_EXPRESSION 64
#define XS_TOKEN_MULTIPLICATIVE_EXPRESSION 128
#define XS_TOKEN_EXPONENTIATION_EXPRESSION 256
#define XS_TOKEN_PREFIX_EXPRESSION 512
#define XS_TOKEN_POSTFIX_EXPRESSION 1024
#define XS_TOKEN_END_STATEMENT 2048
#define XS_TOKEN_REFERENCE_EXPRESSION 4096
#define XS_TOKEN_NO_REGEXP 8192
#define XS_TOKEN_BEGIN_BINDING 16384
#define XS_TOKEN_IDENTIFIER_NAME 32768
static txTokenFlag gxTokenFlags[XS_TOKEN_COUNT] = {
/* XS_NO_TOKEN */ 0,
/* XS_TOKEN_ACCESS */ 0,
/* XS_TOKEN_ADD */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_ADDITIVE_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION,
/* XS_TOKEN_ADD_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_AND */ 0,
/* XS_TOKEN_ARG */ 0,
/* XS_TOKEN_ARGUMENTS */ 0,
/* XS_TOKEN_ARGUMENTS_SLOPPY */ 0,
/* XS_TOKEN_ARGUMENTS_STRICT */ 0,
/* XS_TOKEN_ARRAY */ 0,
/* XS_TOKEN_ARRAY_BINDING */ 0,
/* XS_TOKEN_ARROW */ 0,
/* XS_TOKEN_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_BINDING */ 0,
/* XS_TOKEN_BIT_AND */ 0,
/* XS_TOKEN_BIT_AND_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_BIT_NOT */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION,
/* XS_TOKEN_BIT_OR */ 0,
/* XS_TOKEN_BIT_OR_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_BIT_XOR */ 0,
/* XS_TOKEN_BIT_XOR_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_BLOCK */ 0,
/* XS_TOKEN_BODY */ 0,
/* XS_TOKEN_BREAK */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_CALL */ 0,
/* XS_TOKEN_CASE */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_CATCH */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_CLASS */ XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_COLON */ 0,
/* XS_TOKEN_COMMA */ XS_TOKEN_END_STATEMENT,
/* XS_TOKEN_CONST */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_CONTINUE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_CURRENT */ 0,
/* XS_TOKEN_DEBUGGER */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_DECREMENT */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION | XS_TOKEN_POSTFIX_EXPRESSION,
/* XS_TOKEN_DEFAULT */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_DEFINE */ 0,
/* XS_TOKEN_DELEGATE */ 0,
/* XS_TOKEN_DELETE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_DIVIDE */ XS_TOKEN_MULTIPLICATIVE_EXPRESSION,
/* XS_TOKEN_DIVIDE_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_DO */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_DOT */ 0,
/* XS_TOKEN_ELISION */ 0,
/* XS_TOKEN_ELSE */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_ENUM */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_EOF */ XS_TOKEN_END_STATEMENT,
/* XS_TOKEN_EQUAL */ XS_TOKEN_EQUAL_EXPRESSION,
/* XS_TOKEN_EVAL */ 0,
/* XS_TOKEN_EXPONENTIATION */ XS_TOKEN_EXPONENTIATION_EXPRESSION,
/* XS_TOKEN_EXPONENTIATION_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_EXPORT */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_EXPRESSIONS */ 0,
/* XS_TOKEN_EXTENDS */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_FALSE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_FINALLY */ XS_TOKEN_IDENTIFIER_NAME | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_FOR */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_FOR_IN */ 0,
/* XS_TOKEN_FOR_OF */ 0,
/* XS_TOKEN_FUNCTION */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_GENERATOR */ 0,
/* XS_TOKEN_GETTER */ 0,
/* XS_TOKEN_HOST */ XS_TOKEN_BEGIN_EXPRESSION,
/* XS_TOKEN_IDENTIFIER */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_BEGIN_BINDING | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_IF */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_IMPLEMENTS */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_IMPORT */ XS_TOKEN_IDENTIFIER_NAME | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_IN */ XS_TOKEN_RELATIONAL_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_INCLUDE */ 0,
/* XS_TOKEN_INCREMENT */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION | XS_TOKEN_POSTFIX_EXPRESSION,
/* XS_TOKEN_INSTANCEOF */ XS_TOKEN_RELATIONAL_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_INTEGER */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_INTERFACE */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_ITEMS */ 0,
/* XS_TOKEN_LABEL */ 0,
/* XS_TOKEN_LEFT_BRACE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_BEGIN_BINDING,
/* XS_TOKEN_LEFT_BRACKET */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_BEGIN_BINDING,
/* XS_TOKEN_LEFT_PARENTHESIS */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION,
/* XS_TOKEN_LEFT_SHIFT */ XS_TOKEN_SHIFT_EXPRESSION,
/* XS_TOKEN_LEFT_SHIFT_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_LESS */ XS_TOKEN_RELATIONAL_EXPRESSION,
/* XS_TOKEN_LESS_EQUAL */ XS_TOKEN_RELATIONAL_EXPRESSION,
/* XS_TOKEN_LET */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_MEMBER */ 0,
/* XS_TOKEN_MEMBER_AT */ 0,
/* XS_TOKEN_MINUS */ 0,
/* XS_TOKEN_MODULE */ 0,
/* XS_TOKEN_MODULO */ XS_TOKEN_MULTIPLICATIVE_EXPRESSION,
/* XS_TOKEN_MODULO_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_MORE */ XS_TOKEN_RELATIONAL_EXPRESSION,
/* XS_TOKEN_MORE_EQUAL */ XS_TOKEN_RELATIONAL_EXPRESSION,
/* XS_TOKEN_MULTIPLY */ XS_TOKEN_MULTIPLICATIVE_EXPRESSION,
/* XS_TOKEN_MULTIPLY_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_NEW */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_NOT */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION,
/* XS_TOKEN_NOT_EQUAL */ XS_TOKEN_EQUAL_EXPRESSION,
/* XS_TOKEN_NULL */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_NUMBER */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_OBJECT */ 0,
/* XS_TOKEN_OBJECT_BINDING */ 0,
/* XS_TOKEN_OR */ 0,
/* XS_TOKEN_PACKAGE */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_PARAMS */ 0,
/* XS_TOKEN_PARAMS_BINDING */ 0,
/* XS_TOKEN_PLUS */ 0,
/* XS_TOKEN_PRIVATE */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_PROGRAM */ 0,
/* XS_TOKEN_PROPERTY */ 0,
/* XS_TOKEN_PROPERTY_AT */ 0,
/* XS_TOKEN_PROPERTY_BINDING */ 0,
/* XS_TOKEN_PROPERTY_BINDING_AT */ 0,
/* XS_TOKEN_PROTECTED */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_PUBLIC */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_QUESTION_MARK */ 0,
/* XS_TOKEN_REGEXP */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_REST_BINDING */ 0,
/* XS_TOKEN_RETURN */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_RIGHT_BRACE */ XS_TOKEN_END_STATEMENT,
/* XS_TOKEN_RIGHT_BRACKET */ XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_RIGHT_PARENTHESIS */ XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_SEMICOLON */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_END_STATEMENT,
/* XS_TOKEN_SETTER */ 0,
/* XS_TOKEN_SHORT */ 0,
/* XS_TOKEN_SIGNED_RIGHT_SHIFT */ XS_TOKEN_SHIFT_EXPRESSION,
/* XS_TOKEN_SIGNED_RIGHT_SHIFT_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_SKIP_BINDING */ 0,
/* XS_TOKEN_SPECIFIER */ 0,
/* XS_TOKEN_SPREAD */ XS_TOKEN_BEGIN_BINDING,
/* XS_TOKEN_STATEMENT */ 0,
/* XS_TOKEN_STATEMENTS */ 0,
/* XS_TOKEN_STATIC */ XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_STRICT_EQUAL */ XS_TOKEN_EQUAL_EXPRESSION,
/* XS_TOKEN_STRICT_NOT_EQUAL */ XS_TOKEN_EQUAL_EXPRESSION,
/* XS_TOKEN_STRING */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_SUBTRACT */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_ADDITIVE_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION,
/* XS_TOKEN_SUBTRACT_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_SUPER */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_SWITCH */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_TARGET */ 0,
/* XS_TOKEN_TEMPLATE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_TEMPLATE_HEAD */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP,
/* XS_TOKEN_TEMPLATE_MIDDLE */ 0,
/* XS_TOKEN_TEMPLATE_TAIL */ 0,
/* XS_TOKEN_THIS */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_THROW */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_TRUE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_NO_REGEXP | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_TRY */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_TYPEOF */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_UNDEFINED */ 0,
/* XS_TOKEN_UNSIGNED_RIGHT_SHIFT */ XS_TOKEN_SHIFT_EXPRESSION,
/* XS_TOKEN_UNSIGNED_RIGHT_SHIFT_ASSIGN */ XS_TOKEN_ASSIGN_EXPRESSION,
/* XS_TOKEN_VAR */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_VOID */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_PREFIX_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_WHILE */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_WITH */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_IDENTIFIER_NAME,
/* XS_TOKEN_YIELD */ XS_TOKEN_BEGIN_STATEMENT | XS_TOKEN_BEGIN_EXPRESSION | XS_TOKEN_IDENTIFIER_NAME
};
static txString gxTokenNames[XS_TOKEN_COUNT] = {
/* XS_NO_TOKEN */ "",
/* XS_TOKEN_ACCESS */ "access",
/* XS_TOKEN_ADD */ "+",
/* XS_TOKEN_ADD_ASSIGN */ "+=",
/* XS_TOKEN_AND */ "&&",
/* XS_TOKEN_ARG */ "arg",
/* XS_TOKEN_ARGUMENTS */ "arguments",
/* XS_TOKEN_ARGUMENTS_SLOPPY */ "arguments_sloppy",
/* XS_TOKEN_ARGUMENTS_STRICT */ "arguments_strict",
/* XS_TOKEN_ARRAY */ "array",
/* XS_TOKEN_ARRAY_BINDING */ "array_binding",
/* XS_TOKEN_ARROW */ "=>",
/* XS_TOKEN_ASSIGN */ "=",
/* XS_TOKEN_BINDING */ "binding",
/* XS_TOKEN_BIT_AND */ "&",
/* XS_TOKEN_BIT_AND_ASSIGN */ "&=",
/* XS_TOKEN_BIT_NOT */ "~",
/* XS_TOKEN_BIT_OR */ "|",
/* XS_TOKEN_BIT_OR_ASSIGN */ "|=",
/* XS_TOKEN_BIT_XOR */ "^",
/* XS_TOKEN_BIT_XOR_ASSIGN */ "^=",
/* XS_TOKEN_BLOCK */ "block",
/* XS_TOKEN_BODY */ "body",
/* XS_TOKEN_BREAK */ "break",
/* XS_TOKEN_CALL */ "call",
/* XS_TOKEN_CASE */ "case",
/* XS_TOKEN_CATCH */ "catch",
/* XS_TOKEN_CLASS */ "class",
/* XS_TOKEN_COLON */ ":",
/* XS_TOKEN_COMMA */ ",",
/* XS_TOKEN_CONST */ "const",
/* XS_TOKEN_CONTINUE */ "continue",
/* XS_TOKEN_CURRENT */ "current",
/* XS_TOKEN_DEBUGGER */ "debugger",
/* XS_TOKEN_DECREMENT */ "--",
/* XS_TOKEN_DEFAULT */ "default",
/* XS_TOKEN_DEFINE */ "define",
/* XS_TOKEN_DELEGATE */ "delegate",
/* XS_TOKEN_DELETE */ "delete",
/* XS_TOKEN_DIVIDE */ "/",
/* XS_TOKEN_DIVIDE_ASSIGN */ "/=",
/* XS_TOKEN_DO */ "do",
/* XS_TOKEN_DOT */ ".",
/* XS_TOKEN_ELISION */ "elision",
/* XS_TOKEN_ELSE */ "else",
/* XS_TOKEN_ENUM */ "enum",
/* XS_TOKEN_EOF */ "",
/* XS_TOKEN_EQUAL */ "==",
/* XS_TOKEN_EVAL */ "eval",
/* XS_TOKEN_EXPONENTIATION */ "**",
/* XS_TOKEN_EXPONENTIATION_ASSIGN */ "**=",
/* XS_TOKEN_EXPORT */ "export",
/* XS_TOKEN_EXPRESSIONS */ "expressions",
/* XS_TOKEN_EXTENDS */ "extends",
/* XS_TOKEN_FALSE */ "false",
/* XS_TOKEN_FINALLY */ "finally",
/* XS_TOKEN_FOR */ "for",
/* XS_TOKEN_FOR_IN */ "for_in",
/* XS_TOKEN_FOR_OF */ "for_of",
/* XS_TOKEN_FUNCTION */ "function",
/* XS_TOKEN_GENERATOR */ "generator",
/* XS_TOKEN_GETTER */ "getter",
/* XS_TOKEN_HOST */ "host",
/* XS_TOKEN_IDENTIFIER */ "identifier",
/* XS_TOKEN_IF */ "if",
/* XS_TOKEN_IMPLEMENTS */ "implements",
/* XS_TOKEN_IMPORT */ "import",
/* XS_TOKEN_IN */ "in",
/* XS_TOKEN_INCLUDE */ "include",
/* XS_TOKEN_INCREMENT */ "++",
/* XS_TOKEN_INSTANCEOF */ "instanceof",
/* XS_TOKEN_INTEGER */ "integer",
/* XS_TOKEN_INTERFACE */ "interface",
/* XS_TOKEN_ITEMS */ "items",
/* XS_TOKEN_LABEL */ "label",
/* XS_TOKEN_LEFT_BRACE */ "{",
/* XS_TOKEN_LEFT_BRACKET */ "[",
/* XS_TOKEN_LEFT_PARENTHESIS */ "(",
/* XS_TOKEN_LEFT_SHIFT */ "<<",
/* XS_TOKEN_LEFT_SHIFT_ASSIGN */ "<<=",
/* XS_TOKEN_LESS */ "<",
/* XS_TOKEN_LESS_EQUAL */ "<=",
/* XS_TOKEN_LET */ "let",
/* XS_TOKEN_MEMBER */ "member",
/* XS_TOKEN_MEMBER_AT */ "member_at",
/* XS_TOKEN_MINUS */ "minus",
/* XS_TOKEN_MODULE */ "module",
/* XS_TOKEN_MODULO */ "%",
/* XS_TOKEN_MODULO_ASSIGN */ "%=",
/* XS_TOKEN_MORE */ ">",
/* XS_TOKEN_MORE_EQUAL */ ">=",
/* XS_TOKEN_MULTIPLY */ "*",
/* XS_TOKEN_MULTIPLY_ASSIGN */ "*=",
/* XS_TOKEN_NEW */ "new",
/* XS_TOKEN_NOT */ "!",
/* XS_TOKEN_NOT_EQUAL */ "!=",
/* XS_TOKEN_NULL */ "null",
/* XS_TOKEN_NUMBER */ "number",
/* XS_TOKEN_OBJECT */ "object",
/* XS_TOKEN_OBJECT_BINDING */ "object_binding",
/* XS_TOKEN_OR */ "||",
/* XS_TOKEN_PACKAGE */ "package",
/* XS_TOKEN_PARAMS */ "params",
/* XS_TOKEN_PARAMS_BINDING */ "params_binding",
/* XS_TOKEN_PLUS */ "plus",
/* XS_TOKEN_PRIVATE */ "private",
/* XS_TOKEN_PROGRAM */ "program",
/* XS_TOKEN_PROPERTY */ "property",
/* XS_TOKEN_PROPERTY_AT */ "property_at",
/* XS_TOKEN_PROPERTY_BINDING */ "property_binding",
/* XS_TOKEN_PROPERTY_BINDING_AT */ "property_binding_at",
/* XS_TOKEN_PROTECTED */ "protected",
/* XS_TOKEN_PUBLIC */ "public",
/* XS_TOKEN_QUESTION_MARK */ "?",
/* XS_TOKEN_REGEXP */ "regexp",
/* XS_TOKEN_REST_BINDING */ "rest_binding",
/* XS_TOKEN_RETURN */ "return",
/* XS_TOKEN_RIGHT_BRACE */ "}",
/* XS_TOKEN_RIGHT_BRACKET */ "]",
/* XS_TOKEN_RIGHT_PARENTHESIS */ ")",
/* XS_TOKEN_SEMICOLON */ ";",
/* XS_TOKEN_SETTER */ "setter",
/* XS_TOKEN_SHORT */ "short",
/* XS_TOKEN_SIGNED_RIGHT_SHIFT */ ">>",
/* XS_TOKEN_SIGNED_RIGHT_SHIFT_ASSIGN */ ">>=",
/* XS_TOKEN_SKIP_BINDING */ "skip_binding",
/* XS_TOKEN_SPECIFIER */ "specifier",
/* XS_TOKEN_SPREAD */ "...",
/* XS_TOKEN_STATEMENT */ "statement",
/* XS_TOKEN_STATEMENTS */ "statements",
/* XS_TOKEN_STATIC */ "static",
/* XS_TOKEN_STRICT_EQUAL */ "===",
/* XS_TOKEN_STRICT_NOT_EQUAL */ "!==",
/* XS_TOKEN_STRING */ "string",
/* XS_TOKEN_SUBTRACT */ "-",
/* XS_TOKEN_SUBTRACT_ASSIGN */ "-=",
/* XS_TOKEN_SUPER */ "super",
/* XS_TOKEN_SWITCH */ "switch",
/* XS_TOKEN_TARGET */ "target",
/* XS_TOKEN_TEMPLATE */ "template",
/* XS_TOKEN_TEMPLATE_HEAD */ "template_head",
/* XS_TOKEN_TEMPLATE_MIDDLE */ "template_middle",
/* XS_TOKEN_TEMPLATE_TAIL */ "template_tail",
/* XS_TOKEN_THIS */ "this",
/* XS_TOKEN_THROW */ "throw",
/* XS_TOKEN_TRUE */ "true",
/* XS_TOKEN_TRY */ "try",
/* XS_TOKEN_TYPEOF */ "typeof",
/* XS_TOKEN_UNDEFINED */ "undefined",
/* XS_TOKEN_UNSIGNED_RIGHT_SHIFT */ ">>>",
/* XS_TOKEN_UNSIGNED_RIGHT_SHIFT_ASSIGN */ ">>>=",
/* XS_TOKEN_VAR */ "var",
/* XS_TOKEN_VOID */ "void",
/* XS_TOKEN_WHILE */ "while",
/* XS_TOKEN_WITH */ "with",
/* XS_TOKEN_YIELD */ "yield",
};
txBoolean fxAcceptRegExp(txParser* parser)
{
return ((gxTokenFlags[parser->token] & XS_TOKEN_NO_REGEXP) == 0) ? 1 : 0;
}
void fxMatchToken(txParser* parser, txToken theToken)
{
if (parser->token == theToken)
fxGetNextToken(parser);
else
fxReportParserError(parser, "missing %s", gxTokenNames[theToken]);
}
txNode* fxPopNode(txParser* parser)
{
txNode* node = parser->root;
parser->root = node->next;
node->next = NULL;
parser->nodeCount--;
return node;
}
void fxPushNode(txParser* parser, txNode* node)
{
node->next = parser->root;
parser->root = (txNode*)node;
parser->nodeCount++;
}
void fxPushIndexNode(txParser* parser, txIndex value, txInteger line)
{
if (((txInteger)value) >= 0)
fxPushIntegerNode(parser, (txInteger)value, line);
else
fxPushNumberNode(parser, value, line);
}
void fxPushIntegerNode(txParser* parser, txInteger value, txInteger line)
{
txIntegerNode* node = fxNewParserChunk(parser, sizeof(txIntegerNode));
node->description = &gxTokenDescriptions[XS_TOKEN_INTEGER];
node->path = parser->path;
node->line = line;
node->flags = 0;
node->value = value;
fxPushNode(parser, (txNode*)node);
}
void fxPushNodeStruct(txParser* parser, txInteger count, txToken token, txInteger line)
{
const txNodeDescription* description = &gxTokenDescriptions[token];
txNode* node;
if ((count > parser->nodeCount) || ((sizeof(txNode) + (count * sizeof(txNode*))) > (size_t)(description->size))) {
fxReportParserError(parser, "invalid %s", gxTokenNames[token]);
fxThrowParserError(parser, parser->errorCount);
}
node = fxNewParserChunkClear(parser, description->size);
node->description = description;
node->flags |= parser->flags & (mxStrictFlag | mxGeneratorFlag);
node->path = parser->path;
node->line = line;
parser->nodeCount -= count;
if (count) {
txNode** dst = (txNode**)&node[1];
txNode* src = parser->root;
while (count) {
txNode* next = src->next;
src->next = NULL;
count--;
if (src->description)
dst[count] = src;
else if (src->path)
dst[count] = (txNode*)(src->path);
src = next;
}
parser->root = src;
}
fxPushNode(parser, node);
}
void fxPushNodeList(txParser* parser, txInteger count)
{
txNodeList* list = fxNewParserChunk(parser, sizeof(txNodeList));
txNode* previous = NULL;
txNode* current = parser->root;
txNode* next;
parser->nodeCount -= count;
list->length = count;
while (count) {
next = current->next;
current->next = previous;
previous = current;
current = next;
count--;
}
parser->root = current;
list->description = &gxTokenDescriptions[XS_NO_TOKEN];
list->first = previous;
fxPushNode(parser, (txNode*)list);
}
void fxPushNULL(txParser* parser)
{
txNodeLink* node = fxNewParserChunk(parser, sizeof(txNodeLink));
node->description = NULL;
node->symbol = NULL;
fxPushNode(parser, (txNode*)node);
}
void fxPushNumberNode(txParser* parser, txNumber value, txInteger line)
{
txNumberNode* node = fxNewParserChunk(parser, sizeof(txNumberNode));
node->description = &gxTokenDescriptions[XS_TOKEN_NUMBER];
node->path = parser->path;
node->line = line;
node->flags = 0;
node->value = value;
fxPushNode(parser, (txNode*)node);
}
void fxPushStringNode(txParser* parser, txInteger length, txString value, txInteger line)
{
txStringNode* node = fxNewParserChunk(parser, sizeof(txStringNode));
node->description = &gxTokenDescriptions[XS_TOKEN_STRING];
node->path = parser->path;
node->line = line;
node->flags = 0;
node->length = length;
node->value = value;
fxPushNode(parser, (txNode*)node);
}
void fxPushSymbol(txParser* parser, txSymbol* symbol)
{
txNodeLink* node = fxNewParserChunk(parser, sizeof(txNodeLink));
node->description = NULL;
node->symbol = symbol;
fxPushNode(parser, (txNode*)node);
}
void fxSwapNodes(txParser* parser)
{
txNode* previous = parser->root;
txNode* current = previous->next;
previous->next = current->next;
current->next = previous;
parser->root = current;
}
void fxModule(txParser* parser)
{
txInteger aCount = parser->nodeCount;
txInteger aLine = parser->line;
if (parser->flags & mxCommonProgramFlag) {
while ((parser->token != XS_TOKEN_EOF) && (parser->token != XS_TOKEN_RIGHT_BRACE))
fxStatement(parser, 1);
}
else if (parser->flags & mxCommonModuleFlag) {
fxPushSymbol(parser, parser->exportsSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_VAR, -1);
fxPushNodeList(parser, 0);
fxPushNodeStruct(parser, 1, XS_TOKEN_OBJECT, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, -1);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, -1);
fxPushSymbol(parser, parser->moduleSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_VAR, -1);
fxPushSymbol(parser, parser->exportsSymbol);
fxPushSymbol(parser, parser->exportsSymbol);
fxPushNodeStruct(parser, 1, XS_TOKEN_ACCESS, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_PROPERTY, -1);
fxPushSymbol(parser, parser->idSymbol);
fxPushNodeStruct(parser, 0, XS_TOKEN_THIS, -1);
fxPushSymbol(parser, parser->idSymbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_MEMBER, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_PROPERTY, -1);
fxPushSymbol(parser, parser->uriSymbol);
fxPushNodeStruct(parser, 0, XS_TOKEN_THIS, -1);
fxPushSymbol(parser, parser->uriSymbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_MEMBER, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_PROPERTY, -1);
fxPushNodeList(parser, 3);
fxPushNodeStruct(parser, 1, XS_TOKEN_OBJECT, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, -1);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, -1);
fxPushSymbol(parser, parser->__dirnameSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_VAR, -1);
fxPushNodeStruct(parser, 0, XS_TOKEN_THIS, -1);
fxPushSymbol(parser, parser->__dirnameSymbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_MEMBER, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, -1);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, -1);
fxPushSymbol(parser, parser->__filenameSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_VAR, -1);
fxPushNodeStruct(parser, 0, XS_TOKEN_THIS, -1);
fxPushSymbol(parser, parser->__filenameSymbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_MEMBER, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, -1);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, -1);
fxPushSymbol(parser, parser->defaultSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_VAR, -1);
fxPushSymbol(parser, parser->moduleSymbol);
fxPushNodeStruct(parser, 1, XS_TOKEN_ACCESS, -1);
fxPushSymbol(parser, parser->exportsSymbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_MEMBER, -1);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, -1);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, -1);
fxPushSymbol(parser, parser->defaultSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, -1);
fxPushNodeList(parser, 1);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, -1);
while ((parser->token != XS_TOKEN_EOF) && (parser->token != XS_TOKEN_RIGHT_BRACE))
fxStatement(parser, 1);
}
else {
parser->flags |= mxStrictFlag;
while ((parser->token != XS_TOKEN_EOF) && (parser->token != XS_TOKEN_RIGHT_BRACE)) {
if (parser->token == XS_TOKEN_EXPORT)
fxExport(parser);
else if (parser->token == XS_TOKEN_IMPORT)
fxImport(parser);
else
fxStatement(parser, 1);
}
}
aCount = parser->nodeCount - aCount;
if (aCount > 1) {
fxPushNodeList(parser, aCount);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENTS, aLine);
}
else if (aCount == 0) {
fxPushNodeStruct(parser, 0, XS_TOKEN_UNDEFINED, aLine);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, aLine);
}
fxPushNodeStruct(parser, 1, XS_TOKEN_MODULE, aLine);
parser->root->flags = parser->flags & mxStrictFlag;
}
void fxExport(txParser* parser)
{
txSymbol* symbol = C_NULL;
txNode* node;
txInteger count;
txInteger line = parser->line;
txToken aToken;
fxMatchToken(parser, XS_TOKEN_EXPORT);
switch (parser->token) {
case XS_TOKEN_MULTIPLY:
fxGetNextToken(parser);
if ((parser->token == XS_TOKEN_IDENTIFIER) && (parser->symbol == parser->fromSymbol)) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_STRING) {
fxPushNULL(parser);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
fxPushNodeList(parser, 1);
fxPushStringNode(parser, parser->stringLength, parser->string, line);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
fxGetNextToken(parser);
}
else
fxReportParserError(parser, "missing module");
}
else
fxReportParserError(parser, "missing from");
break;
case XS_TOKEN_DEFAULT:
if (parser->flags & mxDefaultFlag)
fxReportParserError(parser, "invalid default");
parser->flags |= mxDefaultFlag;
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_CLASS) {
fxClassExpression(parser, line, &symbol);
if (symbol) {
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_LET, line);
fxSwapNodes(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, line);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, line);
}
}
else if (parser->token == XS_TOKEN_FUNCTION) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_MULTIPLY) {
fxGetNextToken(parser);
fxGeneratorExpression(parser, line, &symbol);
}
else
fxFunctionExpression(parser, line, &symbol, 0);
if (symbol) {
fxPushSymbol(parser, symbol);
fxSwapNodes(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_DEFINE, line);
}
}
else {
fxAssignmentExpression(parser);
}
if (symbol) {
fxPushSymbol(parser, symbol);
fxPushSymbol(parser, parser->defaultSymbol);
}
else {
fxPushSymbol(parser, parser->defaultSymbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_LET, line);
fxSwapNodes(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, line);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, line);
fxPushSymbol(parser, parser->defaultSymbol);
fxPushNULL(parser);
}
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
fxPushNodeList(parser, 1);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
break;
case XS_TOKEN_CLASS:
fxClassExpression(parser, line, &symbol);
if (symbol) {
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_LET, line);
fxSwapNodes(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_ASSIGN, line);
fxPushNodeStruct(parser, 1, XS_TOKEN_STATEMENT, line);
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
fxPushNodeList(parser, 1);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
}
else
fxReportParserError(parser, "missing identifier");
break;
case XS_TOKEN_FUNCTION:
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_MULTIPLY) {
fxGetNextToken(parser);
fxGeneratorExpression(parser, line, &symbol);
}
else
fxFunctionExpression(parser, line, &symbol, 0);
if (symbol) {
fxPushSymbol(parser, symbol);
fxSwapNodes(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_DEFINE, line);
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
fxPushNodeList(parser, 1);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
}
else
fxReportParserError(parser, "missing identifier");
break;
case XS_TOKEN_CONST:
case XS_TOKEN_LET:
case XS_TOKEN_VAR:
aToken = parser->token;
fxVariableStatement(parser, aToken);
node = parser->root;
count = 0;
if (node->description->token == XS_TOKEN_STATEMENTS) {
node = ((txStatementsNode*)node)->items->first;
while (node) {
if (node->description->token == XS_TOKEN_STATEMENT) {
node = ((txStatementNode*)node)->expression;
if (node->description->token == XS_TOKEN_ASSIGN)
node = ((txAssignNode*)node)->reference;
}
if (node->description->token == aToken) {
symbol = ((txDeclareNode*)node)->symbol;
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
count++;
}
node = node->next;
}
}
else {
if (node->description->token == XS_TOKEN_STATEMENT) {
node = ((txStatementNode*)node)->expression;
if (node->description->token == XS_TOKEN_ASSIGN)
node = ((txAssignNode*)node)->reference;
}
if (node->description->token == aToken) {
symbol = ((txDeclareNode*)node)->symbol;
fxPushSymbol(parser, symbol);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, line);
count++;
}
}
fxPushNodeList(parser, count);
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
break;
case XS_TOKEN_LEFT_BRACE:
count = parser->nodeCount;
fxSpecifiers(parser);
fxPushNodeList(parser, parser->nodeCount - count);
if ((parser->token == XS_TOKEN_IDENTIFIER) && (parser->symbol == parser->fromSymbol)) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_STRING) {
fxPushStringNode(parser, parser->stringLength, parser->string, line);
fxGetNextToken(parser);
}
else {
fxPushNULL(parser);
fxReportParserError(parser, "missing module");
}
}
else
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_EXPORT, line);
break;
default:
fxReportParserError(parser, "invalid export %s", gxTokenNames[parser->token]);
fxGetNextToken(parser);
break;
}
fxSemicolon(parser);
}
void fxImport(txParser* parser)
{
txBoolean asFlag = 1;
txBoolean fromFlag = 0;
txInteger count = parser->nodeCount;
fxMatchToken(parser, XS_TOKEN_IMPORT);
if (parser->token == XS_TOKEN_IDENTIFIER) {
fxPushSymbol(parser, parser->defaultSymbol);
fxPushSymbol(parser, parser->symbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, parser->line);
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_COMMA)
fxGetNextToken(parser);
else
asFlag = 0;
fromFlag = 1;
}
if (asFlag) {
if (parser->token == XS_TOKEN_MULTIPLY) {
fxGetNextToken(parser);
if ((parser->token == XS_TOKEN_IDENTIFIER) && (parser->symbol == parser->asSymbol)) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_IDENTIFIER) {
fxPushNULL(parser);
fxPushSymbol(parser, parser->symbol);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, parser->line);
fxGetNextToken(parser);
}
else {
fxReportParserError(parser, "missing identifier");
}
}
else {
fxReportParserError(parser, "missing as");
}
fromFlag = 1;
}
else if (parser->token == XS_TOKEN_LEFT_BRACE) {
fxSpecifiers(parser);
fromFlag = 1;
}
}
fxPushNodeList(parser, parser->nodeCount - count);
if (fromFlag) {
if ((parser->token == XS_TOKEN_IDENTIFIER) && (parser->symbol == parser->fromSymbol)) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_STRING) {
fxPushStringNode(parser, parser->stringLength, parser->string, parser->line);
fxGetNextToken(parser);
}
else {
fxPushNULL(parser);
fxReportParserError(parser, "missing module");
}
}
else {
fxPushNULL(parser);
fxReportParserError(parser, "missing from");
}
}
else if (parser->token == XS_TOKEN_STRING) {
fxPushStringNode(parser, parser->stringLength, parser->string, parser->line);
fxGetNextToken(parser);
}
else {
fxPushNULL(parser);
fxReportParserError(parser, "missing module");
}
fxPushNodeStruct(parser, 2, XS_TOKEN_IMPORT, parser->line);
fxSemicolon(parser);
}
void fxSpecifiers(txParser* parser)
{
txInteger aCount = 0;
fxMatchToken(parser, XS_TOKEN_LEFT_BRACE);
while (parser->token == XS_TOKEN_IDENTIFIER) {
fxPushSymbol(parser, parser->symbol);
fxGetNextToken(parser);
if ((parser->token == XS_TOKEN_IDENTIFIER) && (parser->symbol == parser->asSymbol)) {
fxGetNextToken(parser);
if (parser->token == XS_TOKEN_IDENTIFIER) {
fxPushSymbol(parser, parser->symbol);
fxGetNextToken(parser);
}
else {
fxPushNULL(parser);
fxReportParserError(parser, "missing identifier");
}
}
else
fxPushNULL(parser);
fxPushNodeStruct(parser, 2, XS_TOKEN_SPECIFIER, parser->line);
aCount++;
if (parser->token != XS_TOKEN_COMMA)
break;
fxGetNextToken(parser);
}
fxMatchToken(parser, XS_TOKEN_RIGHT_BRACE);
}
void fxProgram(txParser* parser)
{
txInteger aLine = parser->line;
fxBody(parser);
fxPushNodeStruct(parser, 1, XS_TOKEN_PROGRAM, aLine);
parser->root->flags = parser->flags & mxStrictFlag;
}
void fxBody(txParser* parser)
{