genbindings: expand typedefs over inner list classes

cmd/genbindings/clang2il.go

@@ -649,9 +649,44 @@ func tokenizeMultipleParameters(p string) []string {
 	return tokens
 }
 
+func tokenizeSingleParameter(p string) []string {
+	// Tokenize into top-level strings
+	templateDepth := 0
+	tokens := []string{}
+	wip := ""
+	p = strings.TrimSpace(p)
+	for _, c := range p {
+		if c == '<' || c == '(' {
+			wip += string(c)
+			templateDepth++
+		} else if c == '>' || c == ')' {
+			wip += string(c)
+			templateDepth--
+		} else if (c == '*' || c == '&') && templateDepth == 0 {
+			if len(wip) > 0 {
+				tokens = append(tokens, wip)
+			}
+			tokens = append(tokens, string(c))
+			wip = ""
+		} else if c == ' ' && templateDepth == 0 {
+			if len(wip) > 0 {
+				tokens = append(tokens, wip)
+			}
+			wip = ""
+		} else {
+			wip += string(c)
+		}
+	}
+
+	if len(wip) > 0 {
+		tokens = append(tokens, wip)
+	}
+
+	return tokens
+}
 func parseSingleTypeString(p string) CppParameter {
 
-	tokens := strings.Split(strings.TrimSpace(p), " ")
+	tokens := tokenizeSingleParameter(p) // strings.Split(strings.TrimSpace(p), " ")
 	insert := CppParameter{}
 	for _, tok := range tokens {
 

cmd/genbindings/clang2il_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 )
 
-func TestParseTypeString(t *testing.T) {
+func TestParseMethodTypes(t *testing.T) {
 	type testCase struct {
 		input        string
 		expectReturn CppParameter
@@ -23,14 +23,19 @@ func TestParseTypeString(t *testing.T) {
 		},
 		testCase{
 			input:        "bool (QList<QPair<Foo, Bar>>, QString)",
-			/*
 			expectReturn: CppParameter{ParameterType: "bool"},
 			expectParams: []CppParameter{
 				CppParameter{ParameterType: "QList<QPair<Foo, Bar>>"},
 				CppParameter{ParameterType: "QString"},
 			},
-			*/
-			expectErr: true,
+			// expectErr: true,
+		},
+		testCase{
+			input:        "bool (QList<QWidget*>)",
+			expectReturn: CppParameter{ParameterType: "bool"},
+			expectParams: []CppParameter{
+				CppParameter{ParameterType: "QList<QWidget*>"},
+			},
 		},
 	}
 
@@ -58,3 +63,21 @@ func TestParseTypeString(t *testing.T) {
 		}
 	}
 }
+
+func TestParseInnerListTypes(t *testing.T) {
+	l := parseSingleTypeString(`QList<QWidget*>`)
+
+	tok, ok := l.QListOf()
+
+	if !ok {
+		t.Fatal("expected QListOf")
+	}
+
+	if !tok.Pointer {
+		t.Error("expected pointer")
+	}
+
+	if tok.ParameterType != "QWidget" {
+		t.Errorf("expected QWidget, got %q", tok.ParameterType)
+	}
+}

cmd/genbindings/transformtypedefs.go

@@ -1,5 +1,30 @@
 package main
 
+import (
+	"strings"
+)
+
+func applyTypedefs(p CppParameter) CppParameter {
+
+	if td, ok := KnownTypedefs[p.ParameterType]; ok {
+		p = td.UnderlyingType.CopyWithAlias(p)
+	}
+
+	if t, ok := p.QListOf(); ok {
+		t2 := applyTypedefs(t) // recursive
+
+		// Wipe out so that RenderTypeQtCpp() does not see it
+		t2.TypeAlias = ""
+
+		// QListOf returns for either QList< or QVector<
+		// Patch it up to the first < position and last character
+		bpos := strings.Index(p.ParameterType, `<`)
+		p.ParameterType = p.ParameterType[0:bpos] + `<` + t2.RenderTypeQtCpp() + `>`
+	}
+
+	return p
+}
+
 // astTransformTypedefs replaces the ParameterType with any known typedef value.
 func astTransformTypedefs(parsed *CppParsedHeader) {
 
@@ -8,25 +33,17 @@ func astTransformTypedefs(parsed *CppParsedHeader) {
 		for j, m := range c.Methods {
 
 			for k, p := range m.Parameters {
-				if td, ok := KnownTypedefs[p.ParameterType]; ok {
-					p = td.UnderlyingType.CopyWithAlias(p)
-				}
-				m.Parameters[k] = p
+				m.Parameters[k] = applyTypedefs(p)
 			}
 
-			if td, ok := KnownTypedefs[m.ReturnType.ParameterType]; ok {
-				m.ReturnType = td.UnderlyingType.CopyWithAlias(m.ReturnType)
-			}
+			m.ReturnType = applyTypedefs(m.ReturnType)
 			c.Methods[j] = m
 		}
 
 		for j, m := range c.Ctors {
 
 			for k, p := range m.Parameters {
-				if td, ok := KnownTypedefs[p.ParameterType]; ok {
-					p = td.UnderlyingType.CopyWithAlias(p)
-				}
-				m.Parameters[k] = p
+				m.Parameters[k] = applyTypedefs(p)
 			}
 
 			c.Ctors[j] = m

cmd/genbindings/transformtypedefs_test.go

@@ -31,15 +31,17 @@ func TestTransformTypedefs(t *testing.T) {
 
 	}
 
-	// t.Logf("Existing typedefs: %#v\n", KnownTypedefs)
-
-	parsed := makeTest("WId")
-
+	runTest := func(check string, expect string) {
+		parsed := makeTest(check)
 		astTransformTypedefs(&parsed)
 
 		got := parsed.Classes[0].Ctors[0].Parameters[0].ParameterType
-	expect := "uintptr_t"
 		if got != expect {
 			t.Errorf("Transform of WId got %q, expected %q", got, expect)
 		}
 	}
+
+	runTest("WId", "uintptr_t")
+	runTest("QList<WId>", "QList<uintptr_t>")
+	runTest("QVector<WId>", "QVector<uintptr_t>")
+}