Function fxScopeLookup

xs/sources/xsScope.c:314–385

}

void fxScopeLookup(txScope* self, txAccessNode* access, txBoolean closureFlag) 
{
	txDeclareNode* declaration;
	if (self->token == XS_TOKEN_EVAL) {
		declaration = fxScopeGetDeclareNode(self, access->symbol);
		if (declaration) {
			if ((!(self->flags & mxStrictFlag)) && ((declaration->description->token == XS_TOKEN_VAR) || (declaration->description->token == XS_TOKEN_DEFINE))) {
				declaration = C_NULL;
			}
			else if (closureFlag)
				declaration->flags |= mxDeclareNodeClosureFlag;
		}
		else if ((self->flags & mxStrictFlag) && (access->description->token == XS_TOKEN_PRIVATE_MEMBER)) {
			declaration = fxDeclareNodeNew(self->parser, XS_TOKEN_PRIVATE, access->symbol);
			declaration->flags |= mxDeclareNodeClosureFlag;
			declaration->line = access->line;
			fxScopeAddDeclareNode(self, declaration);
			self->closureNodeCount++;
		}
		access->declaration = declaration;
	}
	else if (self->token == XS_TOKEN_FUNCTION) {
		declaration = fxScopeGetDeclareNode(self, access->symbol);
		if (declaration) {
			if (closureFlag)
				declaration->flags |= mxDeclareNodeClosureFlag;
			access->declaration = declaration;
		}
		else if ((self->node->flags & mxEvalFlag) && !(self->node->flags & mxStrictFlag)) {
			// eval can create variables that override closures 
			access->declaration = C_NULL;
		}
		else if (self->scope) {
			fxScopeLookup(self->scope, access, 1);
			if (access->declaration) {
				txDeclareNode* closureNode = fxDeclareNodeNew(self->parser, XS_NO_TOKEN, access->symbol);
				closureNode->flags |= mxDeclareNodeClosureFlag | mxDeclareNodeUseClosureFlag;
				closureNode->line = access->declaration->line;
				closureNode->declaration = access->declaration;
				fxScopeAddDeclareNode(self, closureNode);
				self->closureNodeCount++;
				access->declaration = closureNode;
			}
		}
	}
	else if (self->token == XS_TOKEN_PROGRAM) {
		declaration = fxScopeGetDeclareNode(self, access->symbol);
		if (declaration && ((declaration->description->token == XS_TOKEN_VAR) || (declaration->description->token == XS_TOKEN_DEFINE))) {
			declaration = C_NULL;
		}
		access->declaration = declaration;
	}
	else if (self->token == XS_TOKEN_WITH) {
		// with object can have properties that override variables 
		access->declaration = C_NULL;
	}
	else {
		declaration = fxScopeGetDeclareNode(self, access->symbol);