7 files changed, 83 insertions, 31 deletions

diff --git a/spec/inputs/destructure.yue b/spec/inputs/destructure.yue
index 674dfe4..9f01a20 100644
--- a/spec/inputs/destructure.yue
+++ b/spec/inputs/destructure.yue
@@ -94,7 +94,7 @@ do
 --
 
 do
-        with {a,b} = thing
+        with {a,b} := thing
                 print a, b
 
 
diff --git a/spec/inputs/macro_export.yue b/spec/inputs/macro_export.yue
index cc7d459..75fd813 100644
--- a/spec/inputs/macro_export.yue
+++ b/spec/inputs/macro_export.yue
@@ -38,8 +38,8 @@ export macro copy = (src, dst, ...)->
         "
 do
         local _src_, _dst_
-        with _dst_ = #{dst}
-                with _src_ = #{src}
+        with _dst_ := #{dst}
+                with _src_ := #{src}
 #{table.concat for field in *{...} do "
                         _dst_.#{field} = _src_.#{field}
 "}"
diff --git a/spec/inputs/switch.yue b/spec/inputs/switch.yue
index 7ff3118..5097db3 100644
--- a/spec/inputs/switch.yue
+++ b/spec/inputs/switch.yue
@@ -220,4 +220,56 @@ do
                         ]
                         print "matched", sixth
 
-nil
\ No newline at end of file
+do
+        switch v := "hello"
+                when "hello"
+                        print "matched hello"
+                else
+                        print "not matched"
+        -- output: matched hello
+
+do
+        f = -> "ok"
+        switch val := f!
+                when "ok"
+                        print "it's ok"
+        -- output: it's ok
+
+
+do
+        g = -> 42
+        switch result := g!
+                when 1, 2
+                        print "small"
+                when 42
+                        print "life universe everything"
+                else
+                        print "other #{result}"
+        -- output: life universe everything
+
+do
+        check = ->
+                if true
+                        "yes"
+                else
+                        "no"
+
+        switch x := check!
+                when "yes"
+                        print "affirmative"
+                else
+                        print "negative"
+        -- output: affirmative
+
+do
+        t = (): tb ->
+                tb = {a: 1}
+                tb.a = 2
+
+        switch data := t!
+                when {a: 2}
+                        print "matched"
+                else
+                        print "not matched"
+
+nil
diff --git a/spec/inputs/unicode/destructure.yue b/spec/inputs/unicode/destructure.yue
index 3c3a369..a5ffd5d 100644
--- a/spec/inputs/unicode/destructure.yue
+++ b/spec/inputs/unicode/destructure.yue
@@ -84,7 +84,7 @@ do
 --
 
 do
-        with {元素a,元素b} = 东西
+        with {元素a,元素b} := 东西
                 打印 元素a, 元素b
 
 
diff --git a/spec/inputs/unicode/macro_export.yue b/spec/inputs/unicode/macro_export.yue
index 3c9a942..56571cd 100644
--- a/spec/inputs/unicode/macro_export.yue
+++ b/spec/inputs/unicode/macro_export.yue
@@ -37,8 +37,8 @@ export macro 复制 = (源, 目标, ...)->
         "
 do
         local _源_, _目标_
-        with _目标_ = #{目标}
-                with _源_ = #{源}
+        with _目标_ := #{目标}
+                with _源_ := #{源}
 #{table.concat for 字段 in *{...} do "
                         _目标_.#{字段} = _源_.#{字段}
 "}"
diff --git a/spec/inputs/unicode/with.yue b/spec/inputs/unicode/with.yue
index ecbfdab..3c15add 100644
--- a/spec/inputs/unicode/with.yue
+++ b/spec/inputs/unicode/with.yue
@@ -45,19 +45,19 @@ do
         with 变量a
                 打印 .世界
 
-        模块 = with _模块 = {}
+        模块 = with _模块 := {}
                 .事物 = "你好"
 
-        with 变量a, 变量b = 东西, 布
+        with 变量a, 变量b := 东西, 布
                 打印 .世界
 
-        变量x = with 变量a, 变量b = 1, 2
+        变量x = with 变量a, 变量b := 1, 2
                 打印 变量a + 变量b
 
-        打印 with 变量a, 变量b = 1, 2
+        打印 with 变量a, 变量b := 1, 2
                 打印 变量a + 变量b
 
-        p = with 你好!.字段x, 世界!.字段y = 1, 2
+        p = with 你好!.字段x, 世界!.字段y := 1, 2
                 打印 变量a + 变量b
 
 --
@@ -68,16 +68,16 @@ do
                 变量x\大写!
 
 do
-        with 变量k = "乔"
+        with 变量k := "乔"
                 打印 \大写!
 
 do
-        with 变量a,变量b,变量c = "", "", ""
+        with 变量a,变量b,变量c := "", "", ""
                 打印 \大写!
 
 do
         变量a = "床铺"
-        with 变量a,变量b,变量c = "", "", ""
+        with 变量a,变量b,变量c := "", "", ""
                 打印 \大写!
 
 do
@@ -85,7 +85,7 @@ do
                 打印 \大写!
 
 do
-        with 变量k.变量j = "乔"
+        with 变量k.变量j := "乔"
                 打印 \大写!
 
 do
@@ -96,7 +96,7 @@ do
 
 do
         with 变量a
-                with .b = 2
+                with .b := 2
                         打印 .c
 
 do
@@ -131,12 +131,12 @@ do
 
 do
         global 掩码
-        with? 掩码 = 实心矩形 宽: w, 高: h, 颜色: 0x66000000
+        with? 掩码 := 实心矩形 宽: w, 高: h, 颜色: 0x66000000
                 .触摸启用 = true
                 .吞噬触摸 = true
 
 do
-        with? 掩码 = 实心矩形 宽: w, 高: h, 颜色: 0x66000000
+        with? 掩码 := 实心矩形 宽: w, 高: h, 颜色: 0x66000000
                 .触摸启用 = true
                 .吞噬触摸 = true
 
diff --git a/spec/inputs/with.yue b/spec/inputs/with.yue
index dcd4053..c1cf3e3 100644
--- a/spec/inputs/with.yue
+++ b/spec/inputs/with.yue
@@ -48,21 +48,21 @@ do
         with a -- only one value allowed
                 print .world
 
-        mod = with _M = {}
+        mod = with _M := {}
                 .Thing = "hi"
 
         -- operate on a only
-        with a, b = something, pooh
+        with a, b := something, pooh
                 print .world
 
-        x = with a, b = 1, 2
+        x = with a, b := 1, 2
                 print a + b
 
-        print with a, b = 1, 2
+        print with a, b := 1, 2
                 print a + b
 
         -- assignment lhs must be evaluated in the order they appear
-        p = with hello!.x, world!.y = 1, 2
+        p = with hello!.x, world!.y := 1, 2
                 print a + b
 
 --
@@ -73,16 +73,16 @@ do
                 x\upper!
 
 do
-        with k = "jo"
+        with k := "jo"
                 print \upper!
 
 do
-        with a,b,c = "", "", ""
+        with a,b,c := "", "", ""
                 print \upper!
 
 do
         a = "bunk"
-        with a,b,c = "", "", ""
+        with a,b,c := "", "", ""
                 print \upper!
 
 do
@@ -90,7 +90,7 @@ do
                 print \upper!
 
 do
-        with k.j = "jo"
+        with k.j := "jo"
                 print \upper!
 
 do
@@ -103,7 +103,7 @@ do
 do
         with a
                 -- nested `with`s with assignments should change the scope correctly
-                with .b = 2
+                with .b := 2
                         print .c
 
 do
@@ -138,12 +138,12 @@ do
 
 do
         global mask
-        with? mask = SolidRect width: w, height: h, color: 0x66000000
+        with? mask := SolidRect width: w, height: h, color: 0x66000000
                 .touchEnabled = true
                 .swallowTouches = true
 
 do
-        with? mask = SolidRect width: w, height: h, color: 0x66000000
+        with? mask := SolidRect width: w, height: h, color: 0x66000000
                 .touchEnabled = true
                 .swallowTouches = true