From 5a04b5512a128bd1805792cca4eabacf5fd49b27 Mon Sep 17 00:00:00 2001
From: Marc Vertes <mvertes@free.fr>
Date: Sun, 11 Jan 2026 19:02:27 +0100
Subject: fix: handle assign statements on map elements

A new token MapAssign is added to implement assignements involving
a map, slice or array, an index key expression and a value expression.
---
 lang/token.go        |   1 +
 lang/token_string.go | 109 ++++++++++++++++++++++++++-------------------------
 2 files changed, 56 insertions(+), 54 deletions(-)

(limited to 'lang')

diff --git a/lang/token.go b/lang/token.go
index 4f5da35..46a5bb4 100644
--- a/lang/token.go
+++ b/lang/token.go
@@ -59,6 +59,7 @@ const (
 	AndNotAssign // &^=
 	Inc          // ++
 	Dec          // --
+	MapAssign
 
 	// Unary operations.
 	Plus     // unary +
diff --git a/lang/token_string.go b/lang/token_string.go
index 44215b3..7f06092 100644
--- a/lang/token_string.go
+++ b/lang/token_string.go
@@ -51,63 +51,64 @@ func _() {
 	_ = x[AndNotAssign-40]
 	_ = x[Inc-41]
 	_ = x[Dec-42]
-	_ = x[Plus-43]
-	_ = x[Minus-44]
-	_ = x[Addr-45]
-	_ = x[Deref-46]
-	_ = x[BitComp-47]
-	_ = x[Arrow-48]
-	_ = x[Ellipsis-49]
-	_ = x[Not-50]
-	_ = x[Tilde-51]
-	_ = x[Comma-52]
-	_ = x[Semicolon-53]
-	_ = x[Colon-54]
-	_ = x[ParenBlock-55]
-	_ = x[BracketBlock-56]
-	_ = x[BraceBlock-57]
-	_ = x[Break-58]
-	_ = x[Case-59]
-	_ = x[Chan-60]
-	_ = x[Const-61]
-	_ = x[Continue-62]
-	_ = x[Default-63]
-	_ = x[Defer-64]
-	_ = x[Else-65]
-	_ = x[Fallthrough-66]
-	_ = x[For-67]
-	_ = x[Func-68]
-	_ = x[Go-69]
-	_ = x[Goto-70]
-	_ = x[If-71]
-	_ = x[Import-72]
-	_ = x[Interface-73]
-	_ = x[Map-74]
-	_ = x[Package-75]
-	_ = x[Range-76]
-	_ = x[Return-77]
-	_ = x[Select-78]
-	_ = x[Struct-79]
-	_ = x[Switch-80]
-	_ = x[Type-81]
-	_ = x[Var-82]
-	_ = x[Call-83]
-	_ = x[CallX-84]
-	_ = x[Composite-85]
-	_ = x[EqualSet-86]
-	_ = x[Grow-87]
-	_ = x[Index-88]
-	_ = x[JumpFalse-89]
-	_ = x[JumpSetFalse-90]
-	_ = x[JumpSetTrue-91]
-	_ = x[Label-92]
-	_ = x[New-93]
-	_ = x[MaxTok-94]
+	_ = x[MapAssign-43]
+	_ = x[Plus-44]
+	_ = x[Minus-45]
+	_ = x[Addr-46]
+	_ = x[Deref-47]
+	_ = x[BitComp-48]
+	_ = x[Arrow-49]
+	_ = x[Ellipsis-50]
+	_ = x[Not-51]
+	_ = x[Tilde-52]
+	_ = x[Comma-53]
+	_ = x[Semicolon-54]
+	_ = x[Colon-55]
+	_ = x[ParenBlock-56]
+	_ = x[BracketBlock-57]
+	_ = x[BraceBlock-58]
+	_ = x[Break-59]
+	_ = x[Case-60]
+	_ = x[Chan-61]
+	_ = x[Const-62]
+	_ = x[Continue-63]
+	_ = x[Default-64]
+	_ = x[Defer-65]
+	_ = x[Else-66]
+	_ = x[Fallthrough-67]
+	_ = x[For-68]
+	_ = x[Func-69]
+	_ = x[Go-70]
+	_ = x[Goto-71]
+	_ = x[If-72]
+	_ = x[Import-73]
+	_ = x[Interface-74]
+	_ = x[Map-75]
+	_ = x[Package-76]
+	_ = x[Range-77]
+	_ = x[Return-78]
+	_ = x[Select-79]
+	_ = x[Struct-80]
+	_ = x[Switch-81]
+	_ = x[Type-82]
+	_ = x[Var-83]
+	_ = x[Call-84]
+	_ = x[CallX-85]
+	_ = x[Composite-86]
+	_ = x[EqualSet-87]
+	_ = x[Grow-88]
+	_ = x[Index-89]
+	_ = x[JumpFalse-90]
+	_ = x[JumpSetFalse-91]
+	_ = x[JumpSetTrue-92]
+	_ = x[Label-93]
+	_ = x[New-94]
+	_ = x[MaxTok-95]
 }
 
-const _Token_name = "IllegalCommentIdentCharFloatImagIntStringAddSubMulQuoRemAndOrXorShlShrAndNotPeriodEqualGreaterGreaterEqualLandLessLessEqualLorNotEqualDefineAssignAddAssignSubAssignMulAssignQuoAssignRemAssignAndAssignOrAssignXorAssignShlAssignShrAssignAndNotAssignIncDecPlusMinusAddrDerefBitCompArrowEllipsisNotTildeCommaSemicolonColonParenBlockBracketBlockBraceBlockBreakCaseChanConstContinueDefaultDeferElseFallthroughForFuncGoGotoIfImportInterfaceMapPackageRangeReturnSelectStructSwitchTypeVarCallCallXCompositeEqualSetGrowIndexJumpFalseJumpSetFalseJumpSetTrueLabelNewMaxTok"
+const _Token_name = "IllegalCommentIdentCharFloatImagIntStringAddSubMulQuoRemAndOrXorShlShrAndNotPeriodEqualGreaterGreaterEqualLandLessLessEqualLorNotEqualDefineAssignAddAssignSubAssignMulAssignQuoAssignRemAssignAndAssignOrAssignXorAssignShlAssignShrAssignAndNotAssignIncDecMapAssignPlusMinusAddrDerefBitCompArrowEllipsisNotTildeCommaSemicolonColonParenBlockBracketBlockBraceBlockBreakCaseChanConstContinueDefaultDeferElseFallthroughForFuncGoGotoIfImportInterfaceMapPackageRangeReturnSelectStructSwitchTypeVarCallCallXCompositeEqualSetGrowIndexJumpFalseJumpSetFalseJumpSetTrueLabelNewMaxTok"
 
-var _Token_index = [...]uint16{0, 7, 14, 19, 23, 28, 32, 35, 41, 44, 47, 50, 53, 56, 59, 61, 64, 67, 70, 76, 82, 87, 94, 106, 110, 114, 123, 126, 134, 140, 146, 155, 164, 173, 182, 191, 200, 208, 217, 226, 235, 247, 250, 253, 257, 262, 266, 271, 278, 283, 291, 294, 299, 304, 313, 318, 328, 340, 350, 355, 359, 363, 368, 376, 383, 388, 392, 403, 406, 410, 412, 416, 418, 424, 433, 436, 443, 448, 454, 460, 466, 472, 476, 479, 483, 488, 497, 505, 509, 514, 523, 535, 546, 551, 554, 560}
+var _Token_index = [...]uint16{0, 7, 14, 19, 23, 28, 32, 35, 41, 44, 47, 50, 53, 56, 59, 61, 64, 67, 70, 76, 82, 87, 94, 106, 110, 114, 123, 126, 134, 140, 146, 155, 164, 173, 182, 191, 200, 208, 217, 226, 235, 247, 250, 253, 262, 266, 271, 275, 280, 287, 292, 300, 303, 308, 313, 322, 327, 337, 349, 359, 364, 368, 372, 377, 385, 392, 397, 401, 412, 415, 419, 421, 425, 427, 433, 442, 445, 452, 457, 463, 469, 475, 481, 485, 488, 492, 497, 506, 514, 518, 523, 532, 544, 555, 560, 563, 569}
 
 func (i Token) String() string {
 	idx := int(i) - 0
-- 
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