tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-13 07:23:39 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

support print(int)

Browse Source
This commit is contained in:
Ayke van Laethem
2018-04-12 15:19:20 +02:00
parent e1b04abd46
commit 2478bb71f9
3 changed files with 29 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tgo.go
+7
View File
@@ -30,6 +30,7 @@ type Compiler struct {
stringType llvm.Type
stringPtrType llvm.Type
printstringFunc llvm.Value
printintFunc llvm.Value
printspaceFunc llvm.Value
printnlFunc llvm.Value
}
@@ -53,6 +54,8 @@ func NewCompiler(path, triple string) (*Compiler, error) {
printstringType := llvm.FunctionType(llvm.VoidType(), []llvm.Type{c.stringPtrType}, false)
c.printstringFunc = llvm.AddFunction(c.mod, "__go_printstring", printstringType)
printintType := llvm.FunctionType(llvm.VoidType(), []llvm.Type{llvm.Int32Type()}, false)
c.printintFunc = llvm.AddFunction(c.mod, "__go_printint", printintType)
printspaceType := llvm.FunctionType(llvm.VoidType(), nil, false)
c.printspaceFunc = llvm.AddFunction(c.mod, "__go_printspace", printspaceType)
printnlType := llvm.FunctionType(llvm.VoidType(), nil, false)
@@ -179,6 +182,10 @@ func (c *Compiler) parseExpr(expr ast.Expr) error {
ptr.SetLinkage(llvm.InternalLinkage)
ptrCast := llvm.ConstPointerCast(ptr, c.stringPtrType)
c.builder.CreateCall(c.printstringFunc, []llvm.Value{ptrCast}, "")
case token.INT:
n, _ := constant.Int64Val(val) // TODO: do something with the 'exact' return value?
val := llvm.ConstInt(llvm.Int32Type(), uint64(n), true)
c.builder.CreateCall(c.printintFunc, []llvm.Value{val}, "")
default:
return errors.New("todo: print anything other than strings")
}