// generateMemberAssignment generates the expression source for a member assignment.
func (eg *expressionGenerator) generateMemberAssignment(memberAssign *codedom.MemberAssignmentNode, context generationContext) esbuilder.ExpressionBuilder {
basisNode := memberAssign.BasisNode()
// If the target member is an operator, then we need to invoke it as a function call, with the first
// argument being the argument to the child call, and the second argument being the assigned child
// expression.
if memberAssign.Target.IsOperator() {
childCall := memberAssign.NameExpression.(*codedom.MemberCallNode)
memberRef := childCall.ChildExpression.(*codedom.MemberReferenceNode)
// If this is a native operator, change it into a native indexing and assignment.
if memberAssign.Target.IsNative() {
nativeAssign := codedom.NativeAssign(
codedom.NativeIndexing(memberRef.ChildExpression,
childCall.Arguments[0], basisNode),
memberAssign.Value,
basisNode)
return eg.generateExpression(nativeAssign, context)
} else {
memberCall := codedom.MemberCall(
codedom.NativeAccess(memberRef.ChildExpression, eg.pather.GetMemberName(memberAssign.Target), memberRef.BasisNode()),
memberAssign.Target,
[]codedom.Expression{childCall.Arguments[0], memberAssign.Value},
basisNode)
return eg.generateExpression(memberCall, context)
}
}
// If the target member is implicitly called, then this is a property that needs to be assigned via a call.
if memberAssign.Target.IsImplicitlyCalled() {
memberRef := memberAssign.NameExpression.(*codedom.MemberReferenceNode)
memberCall := codedom.MemberCall(
codedom.NativeAccess(memberRef.ChildExpression, eg.pather.GetSetterName(memberRef.Member), memberRef.BasisNode()),
memberAssign.Target,
[]codedom.Expression{memberAssign.Value},
basisNode)
return eg.generateExpression(memberCall, context)
}
value := eg.generateExpression(memberAssign.Value, context)
targetExpr := eg.generateExpression(memberAssign.NameExpression, context)
return esbuilder.Assignment(targetExpr, value)
}
// generateMemberCall generates the expression source for a call to a module or type member.
func (eg *expressionGenerator) generateMemberCall(memberCall *codedom.MemberCallNode, context generationContext) esbuilder.ExpressionBuilder {
if memberCall.Member.IsOperator() && memberCall.Member.IsNative() {
// This is a call to a native operator.
if memberCall.Member.Name() != "index" {
panic("Native call to non-index operator")
}
refExpr := memberCall.ChildExpression.(*codedom.MemberReferenceNode).ChildExpression
return eg.generateExpression(codedom.NativeIndexing(refExpr, memberCall.Arguments[0], memberCall.BasisNode()), context)
}
callPath := memberCall.ChildExpression
arguments := memberCall.Arguments
var functionCall = codedom.FunctionCall(callPath, arguments, memberCall.BasisNode())
if memberCall.Nullable {
// Invoke the function with a specialized nullable-invoke.
refExpr := callPath.(*codedom.DynamicAccessNode).ChildExpression
var isPromising = "false"
if memberCall.Member.IsPromising() {
isPromising = "true"
}
localArguments := []codedom.Expression{
refExpr,
codedom.LiteralValue("'"+memberCall.Member.Name()+"'", refExpr.BasisNode()),
codedom.LiteralValue(isPromising, memberCall.BasisNode()),
codedom.ArrayLiteral(arguments, memberCall.BasisNode()),
}
functionCall = codedom.RuntimeFunctionCall(codedom.NullableInvokeFunction, localArguments, memberCall.BasisNode())
}
return eg.generateExpression(codedom.WrapIfPromising(functionCall, memberCall.Member, memberCall.BasisNode()), context)
}