func (v *Codegen) genFunctionBody(fn *parser.Function, llvmFn llvm.Value) {
block := llvm.AddBasicBlock(llvmFn, "entry")
v.pushFunction(fn)
v.builders[v.currentFunction()] = llvm.NewBuilder()
v.builder().SetInsertPointAtEnd(block)
pars := fn.Parameters
if fn.Type.Receiver != nil {
newPars := make([]*parser.VariableDecl, len(pars)+1)
newPars[0] = fn.Receiver
copy(newPars[1:], pars)
pars = newPars
}
for i, par := range pars {
alloc := v.builder().CreateAlloca(v.typeToLLVMType(par.Variable.Type), par.Variable.Name)
v.variableLookup[par.Variable] = alloc
v.builder().CreateStore(llvmFn.Params()[i], alloc)
}
v.genBlock(fn.Body)
v.builder().Dispose()
delete(v.builders, v.currentFunction())
delete(v.curLoopExits, v.currentFunction())
delete(v.curLoopNexts, v.currentFunction())
v.popFunction()
}